With Plural Alignments On The Same Substrate Patents (Class 349/129)
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Patent number: 7880847Abstract: A high resolution, wide viewing angle, low power consumption liquid crystal display device which utilizes nematic liquid crystal and which can attain both the memory effect and wide-viewing-angle display characteristic. A liquid crystal display device that utilizes nematic liquid crystal and includes a pair of transparent substrates; a group of electrodes for applying to a liquid crystal layer disposed between the pair of substrates an electric field having a component substantially parallel to the surfaces of the substrates; and an alignment layer disposed between the liquid crystal layer and at least one of the pair of substrates and having been subjected to liquid crystal anchoring treatments in plural directions. The plurality of liquid crystal anchoring directions of the alignment layer form substantially equal angles relative to one another, and a rising angle in each of the liquid crystal anchoring directions with respect to the corresponding substrate surface is substantially zero.Type: GrantFiled: July 9, 2001Date of Patent: February 1, 2011Assignee: Japan Science and Technology CorporationInventors: Makoto Yoneya, Jong-Hyun Kim, Hiroshi Yokoyama, Jun Yamamoto
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Patent number: 7880845Abstract: Provided are a liquid crystal display (LCD) and a method of fabricating the LCD. The LCD includes an insulating substrate a gate line disposed on the insulating substrate, a data line insulated from the gate line and crossing the gate line, a thin film transistor connected to the gate line and the data line, a passivation layer disposed on the thin film transistor, a pixel electrode connected to the thin film transistor and partitioned into a plurality of domains by a plurality of first slits, a control electrode disposed on the passivation layer and at least partially overlapping each first slit, and a plurality of domain forming members arranged parallel to the first slits in an alternating fashion and partitioning the pixel electrode into a plurality of domains.Type: GrantFiled: March 10, 2008Date of Patent: February 1, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Jun-Woo Lee, Hee-Seop Kim, LuJian Gang, Seung-Hoon Lee, Hwa-Sung Woo
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Patent number: 7880850Abstract: A liquid crystal display device is disclosed. The liquid crystal display includes a liquid crystal layer disposed between substrates opposing each other. A pixel of the liquid crystal display is alignment-divided into a plurality of sub-pixels. A dielectric member is provided on a connection portion where the sub-pixels are electrically connected.Type: GrantFiled: December 7, 2007Date of Patent: February 1, 2011Assignee: Sony CorporationInventors: Takeo Koito, Shingo Kataoka, Eiji Sakai, Hiroshi Nishikawa
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Patent number: 7880846Abstract: In applying an alignment material to surfaces of a CF substrate and a TFT substrate, which form a liquid crystal panel, to form alignment films, an alignment film is formed so as to cover at least a display region in which pixels are arranged in a matrix fashion, while a porous alignment film, which has a porous film structure with a higher impurity adsorptive property than the former alignment film, is formed in a region outside the former alignment film, for example, in a region intermediate the display region and a seal region surrounded by a sealing material, whereby the porous alignment film formed in the region outside the display region can efficiently adsorb contaminants, such as residual impurity ions produced from the sealing material and uncured components of the sealing material, to prevent the contaminants from penetrating into the display region and being fixed therein.Type: GrantFiled: April 10, 2008Date of Patent: February 1, 2011Assignee: NEC LCD Technologies, Ltd.Inventors: Toshihiko Motomatsu, Mitsuhiro Sugimoto
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Patent number: 7876411Abstract: An MVA-LCD panel, including an active component array substrate, an opposite substrate and a liquid crystal layer disposed between is provided. The active component array substrate includes scan lines, data lines, control lines and pixel units. Each of the pixel units includes an active component, a domain division electrode (DDE) and a pixel electrode. The active component is electrically connected with the corresponding scan line and the corresponding data line, the DDE being electrically connected with the corresponding control line, the pixel electrode being electrically connected with the active component. The pixel electrode has first slits, and the first DDE are disposed under the first slits. The opposite substrate has a common electrode layer facing toward the active component array substrate. The common electrode layer includes second slits and at least a part of the second slits is disposed over the first domain division electrode.Type: GrantFiled: August 25, 2009Date of Patent: January 25, 2011Assignee: Au Optronics CorporationInventor: Jenn-Jia Su
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Patent number: 7876407Abstract: A vertical alignment liquid crystal layer is sealed between a first substrate having a first electrode and a second substrate having a second electrode, each pixel region has a reflective region and a transmissive region, and a gap adjusting section is provided on one of sides of the first substrate and the second substrate which sets a thickness (gap) d of the liquid crystal layer which controls a phase difference of incident light to the liquid crystal layer so that a gap dr in the reflective region is smaller than a gap dt in the transmissive region. An alignment controller which divides alignment of the liquid crystal within a pixel region is provided in the pixel region on at least one of the sides of the first substrate and the second substrate. It is also possible to optimize by changing the gap in red, green, and blue.Type: GrantFiled: June 25, 2009Date of Patent: January 25, 2011Assignee: Sanyo Electric Co., Ltd.Inventors: Norio Koma, Kazuhiro Inoue, Kazuyuki Maeda, Masaaki Aota, Masayuki Kametani
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Patent number: 7876412Abstract: A method for manufacturing a TFT array panel including forming a gate line having a gate electrode on a insulating layer, a gate insulating layer on the gate line, a semiconductor on the gate insulating layer, an ohmic contact on the semiconductor, a data line having a source electrode and a drain electrode apart form the source electrode on the ohmic contact, a passivation layer having a contact hole to expose the drain electrode, and a pixel electrode connected to the drain electrode through the contact hole. The drain electrode and the source electrode are formed by a photolithography using a negative photoresist pattern. The negative photoresist pattern includes a first portion having a first thickness corresponding to a channel area, a second portion having a second thickness corresponding to a data line area, and a third portion having a third thickness corresponding to another area.Type: GrantFiled: February 11, 2010Date of Patent: January 25, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Gab Kim, Min-Seok Oh, Hong-Kee Chin, Jeong-Min Park, Shi-Yul Kim, Hee-Hwan Choe
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Patent number: 7876410Abstract: A multi-domain vertically aligned liquid crystal display includes an active element array substrate, an opposite substrate, and a liquid crystal layer disposed between the two substrates. The active element array substrate has a plurality of pixel units. Each pixel unit has a pixel electrode and the pixel electrode includes a first alignment pattern and a second alignment pattern. The opposite substrate includes a plurality of common electrodes and each common electrode includes a third alignment pattern and a fourth alignment pattern. The liquid crystal layer proximal each pixel unit is divided into a first domain set and a second domain set, wherein the first alignment pattern and the third alignment pattern correspond to the first domain set, and the second alignment pattern and the fourth alignment pattern correspond to the second domain set.Type: GrantFiled: January 26, 2007Date of Patent: January 25, 2011Assignee: Chimei Innolux CorporationInventors: Che-Ming Hsu, Ming-Feng Hsieh, Chih-Yung Hsieh, Chien-Hong Chen, Wang-Yang Li
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Publication number: 20110013124Abstract: Lyotropic chromophoric compounds comprised of a naphthalimide derivative, a perylene-3,4-dicarboxylic imide derivative, or a perylenetetracarboxylic diimide derivative are described. The compounds can be used to form liquid crystal systems possessing high quality optical properties. The resulting liquid crystal systems are readily applied onto a substrate to obtain optically isotropic or anisotropic, at least partially crystalline films applicable in various fields.Type: ApplicationFiled: March 5, 2009Publication date: January 20, 2011Applicant: Nitto Denko CorporationInventors: Shuangxi Wang, Zongcheng Jiang, Michiharu Yamamoto
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Patent number: 7872717Abstract: A liquid crystal display device having vertical alignment films formed on pixel electrodes of a thin film transistor substrate and a common electrode of a common electrode substrate, and horizontal alignment films formed in a shape of plural belts on the vertical alignment films. The horizontal alignment film of the thin film transistor substrate and the horizontal alignment film of the common electrode substrate are substantially perpendicular to each other. Accordingly, a liquid crystal layer interposed between the two substrates includes a splay area, a homeotropic area, and hybrid area, wherein the hybrid area is disposed around the splay area and the homeotropic area. Since the hybrid area serves as an alignment transition seed, the liquid crystal molecules of the splay area can be easily changed to have a band alignment. Therefore, it is possible to decrease an alignment transition voltage and to enhance an alignment transition speed.Type: GrantFiled: October 6, 2005Date of Patent: January 18, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Tae-Hyeog Jung, Kee-Doo Kim, Hae-Jin Heo
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Patent number: 7872700Abstract: A liquid crystal display includes a first substrate including a first electrode and a second electrode formed thereon, a second substrate including a third electrode formed thereon, wherein the second substrate is spaced apart from the first substrate by a gap, and at least one cutout formed in the third electrode, wherein the at least one cutout is aligned with a space between the first and second electrodes.Type: GrantFiled: May 12, 2006Date of Patent: January 18, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Gyu Kim, Sang-Soo Kim
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Patent number: 7872718Abstract: To provide a production method of a liquid crystal display device and a liquid crystal display device, in which generation of a joint line on a display screen is suppressed and yield can be improved even if a substrate is subjected to an alignment treatment by completing exposure for the substrate through several exposures in a liquid crystal display device including pixels each having two or more domains.Type: GrantFiled: January 25, 2007Date of Patent: January 18, 2011Assignee: Sharp Kabushiki KaishaInventors: Iichiro Inoue, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
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Patent number: 7872719Abstract: A liquid crystal display including a pair of substrates having a predetermined cell gap and arranged opposite to each other, vertical alignment films formed between the pair of substrates, a liquid crystal layer sealed between the vertical alignment films and having a negative dielectric anisotropy, and a cured material provided in the liquid crystal layer and including a liquid crystal skeleton, which is tilted with respect to the substrate at a first angle, for changing tilt angles of liquid crystal molecules for each of predetermined regions. The vertical alignment films have an alignment control direction that defines a second angle with respect to said substrates, wherein the second angle is different from the first angle.Type: GrantFiled: October 30, 2008Date of Patent: January 18, 2011Assignee: Sharp Kabushiki KaishaInventors: Kazutaka Hanaoka, Seiji Tanuma, Yohei Nakanishi, Kazuya Ueda, Shingo Kataoka, Takahiro Sasaki, Arihiro Takeda, Hideaki Tsuda, Takatoshi Mayama, Yuichi Inoue, Norio Sugiura
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Patent number: 7872699Abstract: A thin film transistor (TFT) array panel is provided, which includes: a plurality of gate lines transmitting gate signals; a plurality of data lines intersecting the gate lines and transmitting data signals, each data line including first and second data line branches electrically connected to each other and spaced apart from each other; a plurality of pixel electrodes electrically connected to the gate lines and the data lines through thin film transistor and covering edges of the first or the second data line branches; a passivation layer disposed between the data lines and the pixel electrodes; and a light blocking member covering gaps between the first data line branches and the second data line branches.Type: GrantFiled: August 20, 2008Date of Patent: January 18, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Gyu Kim, Sang-Soo Kim
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Patent number: 7872622Abstract: A liquid crystal display (LCD) which can provide uniform vertical and horizontal visibility while improving lateral visibility is provided. The LCD includes a first insulating substrate, first and second gate lines which are formed on the first insulating substrate, and a data line which is insulated from the first and second gate lines and intersects the first and second gate lines. The LCD also includes first and second thin film transistors (TFTs) which are formed in each pixel and are connected to the first and second gate lines, respectively, and to the data line, first sub-pixel electrodes which are connected to the first TFT, and a second sub-pixel electrode which is separated from the first sub-pixel electrodes by predetermined gaps and is connected to the second TFT.Type: GrantFiled: May 31, 2006Date of Patent: January 18, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Dong-kyu Kim
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Patent number: 7868981Abstract: A liquid crystal display device including a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, as well as a source electrode, a Cs intermediate electrode, and a pixel electrode formed on one of the pair of substrates. The liquid crystal display device also includes vertical alignment films formed on the pair of substrates and polymer layers formed on the vertical alignment films, wherein a contact hole, which connects the source electrode and the pixel electrode, and another contact hole, which connects the pixel electrode and the Cs intermediate electrode, are both formed at a liquid crystal domain boundary.Type: GrantFiled: August 13, 2008Date of Patent: January 11, 2011Assignee: Sharp Kabushiki KaishaInventors: Hiroyasu Inoue, Kenichi Nagaoka, Yuji Nakahata, Yoji Taniguchi, Tetsuya Fujikawa, Yohei Nakanishi, Kazutaka Hanaoka, Yuichi Inoue, Masakazu Shibasaki
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Patent number: 7868980Abstract: In a parallax barrier DV (Dual View) display apparatus, a TN (Twisted Nematic) liquid crystal display panel is adopted as a display device for display images. The TN liquid crystal display panel includes a pair of opposing substrates, a liquid crystal layer sandwiched therebetween, orientation films arranged to orient liquid crystal molecules constituting the liquid crystal layer, and electrodes arranged to independently apply electric fields to areas of the liquid crystal layer which correspond to respective pixels. The orientation films are oriented in such a manner that liquid crystal molecules in the aforesaid areas are oriented so that display directions of the pixels are parallel or substantially parallel to a viewing angle direction. This arrangement improves image separation capability in all display directions, in a DV (Dual View) display apparatus displaying different images in respective display directions, by a single display screen.Type: GrantFiled: March 23, 2006Date of Patent: January 11, 2011Assignee: Sharp Kabushiki KaishaInventors: Hiroshi Fukushima, Tomoo Takatani, Koji Yabuta
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Patent number: 7864276Abstract: A liquid crystal display has (i) first and second substrates having electrodes and a pretilt angle of 88.5° to 89.5°, (ii) a liquid crystal layer, having a thickness d and made of liquid crystal molecule material which has a twist structure at a twist angle of 160° to 240° in a voltage application state, the liquid crystal layer containing chiral material having a pitch of p, where d/p is 0.2 to 0.74, (iii) a first polarizer disposed facing the first substrate, the first polarizer having as a transmission axis direction a first direction, (iv) a second polarizer disposed facing the second substrate, the second polarizer having as a transmission axis direction a second direction having an angle of 85° to 95° relative to the first direction, and (v) an optical anisotropic plate disposed at least one of between the first substrate and first polarizer and between the second substrate and second polarizer.Type: GrantFiled: March 27, 2007Date of Patent: January 4, 2011Assignee: Stanley Electric Co., Ltd.Inventor: Yoshihisa Iwamoto
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Patent number: 7864279Abstract: The invention relates to a vertically aligned liquid crystal display and a method of manufacturing the same and provides a liquid crystal display in which singular points can be sufficiently controlled to achieve high display quality and a method of manufacturing the same. A surface of the common electrode facing at least one-fourth of a non-electrode part at the outer periphery of the electrode unit is formed with a height of 0.2 ?m or more or a height in the range from 0.4 to 1.5 ?m if possible above a surface of the common electrode facing a part of the electrode unit substantially in the middle thereof.Type: GrantFiled: March 28, 2006Date of Patent: January 4, 2011Assignee: Sharp Kabushiki KaishaInventors: Manabu Sawasaki, Takashi Takagi
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Patent number: 7855769Abstract: A liquid crystal display (LCD) panel is provided, which comprises a plurality of array units. Each array unit comprises a first pixel and a second pixel which are equal in number; sub-pixels in the first pixel and the second pixel have respective single domain inclination directions; and the domain inclination directions of the sub-pixels in the first pixel are different from those of the corresponding sub-pixels in the second pixel. A better effect on color bias and viewing angle can be achieved with the LCD panel of the present invention.Type: GrantFiled: March 31, 2008Date of Patent: December 21, 2010Assignee: Beijing BOE Optoelectronics Technology Co., Ltd.Inventor: Xue Dong
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Publication number: 20100315581Abstract: An orientation controller which divides a pixel into a plurality of different priority alignment regions and an additional orientation controller are provided in a pixel. The additional orientation controller is provided at least at an end of a pixel of a long-side alignment region formed along the long side of the pixel among the divided alignment regions, for example, around a center position of the long side of the pixel. The additional orientation controller can be realized, for example, by forming a cutout pattern in a side of a first electrode (pixel electrode) forming a part of the pixel. Because the alignment direction is also controlled by the additional orientation controller, the alignment of liquid crystal in this region is stabilized.Type: ApplicationFiled: August 5, 2010Publication date: December 16, 2010Applicant: SANYO ELECTRIC CO., LTD.Inventors: Norio KOMA, Kazuhiro INOUE, Masashi MITSUI
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Patent number: 7852419Abstract: A panel for a liquid crystal display and method of fabrication are provided the panel including: a pixel electrode having a plurality of partitions connected to each other; a first wire adjacent to the pixel electrode and applied with a voltage different from a voltage applied to the pixel electrode; and a switching element connected to the pixel electrode, supplying a signal to the pixel electrode, and having a gate electrode, a source electrode, and a drain electrode, wherein a portion of the drain electrode extends between the pixel electrode and the first wire, wherein at least one of connecting members connecting the plurality of partitions of the pixel electrode covers the first wire.Type: GrantFiled: January 28, 2009Date of Patent: December 14, 2010Assignee: Samsung Electronics Co., Ltd.Inventor: Sahng-Ik Jun
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Patent number: 7852442Abstract: A thin film transistor array panel is provided, which includes: a substrate; a plurality of first signal lines formed on the substrate; a plurality of second signal lines intersecting the first signal lines to define pixel areas; first and second pixel electrodes disposed substantially in a pixel area and having different areas; a plurality of thin film transistors connected to the first and the second signal lines and at least one of the first and the second pixel electrodes; a coupling electrode overlapping the second pixel electrode; and a tilt direction defining member for determining tilt directions of liquid crystal molecules formed on the substrate.Type: GrantFiled: February 11, 2009Date of Patent: December 14, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-Seob Kim, Joon-Hak Oh, Doo-Hwan You, Young-Chol Yang
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Publication number: 20100309417Abstract: First and second sub-picture element electrodes, a buffer capacitance, and a first to third TFTs are formed in each picture element; the first and second TFTs are driven by a signal supplied to an nth gate bus line; the third TFT is driven by a signal supplied to an (n+1)th gate bus line; the first sub-picture element electrode is connected to the first and third TFTs; the second sub-picture element electrode is connected to the second TFT; a drain electrode of the third TFT is connected to an upper electrode of the buffer capacitance; and a lower electrode of this buffer capacitance is connected to the (n+1)th gate bus line.Type: ApplicationFiled: June 22, 2010Publication date: December 9, 2010Inventors: Shuntaro KOSUGI, Tetsuya Fujikawa, Tsuyoshi Kamada
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Publication number: 20100309418Abstract: A liquid crystal display device includes: a first substrate and a second substrate; a gate line and a data line on the first substrate that cross each other to define a pixel region; a pixel electrode in the pixel region; a thin film transistor at the crossing of the gate and data lines, and connected to the pixel electrode; at least one first electric field distortion unit in the pixel electrode to control a liquid crystal director by electric field distortion; a second electric field distortion unit between the pixel electrode and the first substrate; and a layer of liquid crystal molecules between the first and second substratesType: ApplicationFiled: August 17, 2010Publication date: December 9, 2010Inventors: Ji Young AHN, Hyeon Ho Son
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Patent number: 7847900Abstract: The invention relates to a manufacturing method of a liquid crystal display device in which an alignment direction of a liquid crystal molecule at the time of driving is regulated by using a polymer, and has an object to provide a manufacturing method of a liquid crystal display device in which excellent display characteristics can be obtained. A liquid crystal layer containing a polymerizable component capable of being polymerized by light is sealed between two substrates arranged to be opposite to each other, the polymerizable component is polymerized by irradiation of light under a predetermined light irradiation condition while a voltage is applied to the liquid crystal layer under a predetermined voltage application condition, and when a pre-tilt angle of a liquid crystal molecule and/or an alignment direction at a time of driving is regulated, at least one of the voltage application condition and the light irradiation condition is changed for each region.Type: GrantFiled: October 29, 2007Date of Patent: December 7, 2010Assignee: Sharp Kabushiki KaishaInventor: Yohei Nakanishi
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Patent number: 7847901Abstract: A liquid crystal display includes a substrate, a pixel electrode disposed on the substrate and including a first subpixel electrode and a second subpixel electrode, and a common electrode facing the pixel electrode. The first subpixel electrode comprises a first edge, a second edge disposed opposite the first edge, and two first oblique edges substantially parallel to each other, the first oblique edges making an oblique angle with the first edge and the second edge and meeting the first edge. The second subpixel electrode comprises a first edge, a second edge disposed opposite the first edge, and two first oblique edges substantially parallel to or substantially perpendicular to the first oblique edges of the first subpixel electrode, the first oblique edges of the second subpixel electrode meeting the first edge of the second subpixel electrode.Type: GrantFiled: January 18, 2010Date of Patent: December 7, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-Wuk Kim, Kyoung-Ju Shin, Hak-Sun Chang, Seung-Hoo Yoo, Hee-Wook Do, Yoon-Sung Um, Mee-Hye Jung
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Publication number: 20100302491Abstract: A liquid crystal display device of the present invention includes: a liquid crystal layer containing a nematic liquid crystal material; a pair of electrodes opposing each other via the liquid crystal layer; a pair of alignment films respectively provided between the pair of electrodes and the liquid crystal layer; and an alignment sustaining layer formed of a photopolymerized material on each of surfaces of the pair of alignment films which are closer to the liquid crystal layer, the alignment sustaining layer being configured to regulate a pretilt azimuth of a liquid crystal molecule of the liquid crystal layer during the absence of an applied voltage across the liquid crystal layer, wherein the pretilt azimuth of the liquid crystal molecule of the liquid crystal layer is regulated by the alignment sustaining layer during the absence of an applied voltage across the liquid crystal layer.Type: ApplicationFiled: October 10, 2008Publication date: December 2, 2010Inventors: Kentaro Usui, Seiji Tanuma, Kazutaka Hanaoka, Kimiaki Nakamura
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Patent number: 7843537Abstract: A liquid crystal display device having a liquid crystal display panel, which includes a pair of substrates, liquid crystal sandwiched between the substrates, a plurality of sub pixels, each sub pixel including a transmissive portion and a reflective portion, a light blocking film formed on one of the substrates, color filters formed on the one substrate, a leveling film formed on the light blocking film and the color filters, an orientation film formed on the leveling film, a retardation film formed on the orientation film at portions corresponding to the reflective portions of the respective sub pixels, and a protective film formed on the retardation film. The orientation film extends at least from the reflective portion to the transmissive portion, the protective film covers the retardation film and a region of the orientation film, the region of the orientation film is a region where the retardation film is not formed.Type: GrantFiled: April 6, 2009Date of Patent: November 30, 2010Assignee: Hitachi Displays, Ltd.Inventors: Masahiro Teramoto, Junji Tanno
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Patent number: 7843538Abstract: In a liquid crystal display device, the device includes a first substrate, a second substrate and a liquid crystal layer interposed therebetween. The first substrate includes a pixel electrode, a thin film transistor connected to the pixel electrode, and also a hitch to connect both a lower and upper electrode of the pixel electrode. The second substrate includes a common electrode having a lower domain division part and an upper domain division part, in which each of domain division part is formed at the position corresponding to the lower and upper electrode of the pixel electrode, respectively. Through the electric field controller connected at both sides of the upper electrode of the pixel electrode, quality of display image can improve without a darkening area occurring at one part of the unit pixel.Type: GrantFiled: May 10, 2007Date of Patent: November 30, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Mee-Hye Jung, Ji-Won Sohn, Sung-Hoon Yang, Jin-Won Park, Seon-Ah Cho
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Publication number: 20100296039Abstract: A micropolarimeter is described for simultaneously extracting all Stokes parameters from incident light. The micropolarimeter includes at least one superpixel, which further includes three or more subpixels, each exact a different polarization components from the incident light. The micropolarimeter includes a first and second alignment layers and a liquid crystal layer disposed between the first and second alignment layers. The liquid crystal molecules of the liquid crystal layer are aligned in accordance with the first and second alignment layers to form the superpixel. A method is provided for manufacturing the photo-aligned liquid-crystal micropolarimeter array.Type: ApplicationFiled: May 20, 2010Publication date: November 25, 2010Applicant: The Hong Kong University of Science and TechnologyInventors: Xiaojin Zhao, Amine Bermak, Vladimir Grigorievich Chigrinov
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Patent number: 7834964Abstract: A transflective liquid crystal display device with improved display quality in which the liquid initial alignment direction of the liquid crystal layer is in a direction perpendicular to the extending direction of a clearance between the counter electrode of a transmission portion and a counter electrode of a reflection portion or in a direction within a range of ±2° in the clockwise direction perpendicular to the extending direction of the clearance in a case where the liquid crystal layer comprises positive type liquid crystals, or the liquid crystal initial alignment direction of the liquid crystal layer is in a direction parallel with the extending direction of a clearance, or a direction within a range of ±2° in the clockwise direction relative to the extending direction of the clearance in a case where the liquid crystal layer comprises negative type liquid crystals.Type: GrantFiled: June 29, 2007Date of Patent: November 16, 2010Assignee: Hitachi Displays, Ltd.Inventors: Takahiro Ochiai, Toshio Miyazawa, Masahiro Maki, Tohru Sasaki, Masateru Morimoto
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Patent number: 7834970Abstract: A multi-domain LCD device and a method for manufacturing the same are disclosed in which the process steps can be simplified and picture quality can be improved. The multi-domain LCD device includes first and second substrates, data and gate lines on the first substrate in first and second directions to define a plurality of pixel regions, a pixel electrode in each pixel region, having at least one slit pattern, a dielectric frame within the pixel regions on the second substrate to define a plurality of domains, and a liquid crystal layer between the first and second substrates.Type: GrantFiled: April 4, 2007Date of Patent: November 16, 2010Assignee: LG Display Co., Ltd.Inventor: Kyeong Jin Kim
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Patent number: 7834969Abstract: A multi-domain vertical alignment (MVA) liquid crystal display panel includes an array substrate, a color filter (CF) substrate arranged in parallel to the array substrate, a plurality of bump patterns disposed on the CF substrate, and a plurality of transparent electrode patterns disposed on the array substrate. Each bump pattern includes a main bump corresponding to a pixel region, and at least one bump wing corresponding to a scan line or a data line. Each main bump includes a first protrusion connected to a side of the main bump. Each transparent electrode pattern includes a main slit. The transparent electrode pattern further includes a plurality of fine slits disposed in an inner side and in an outer side of the main slit. The fine slits disposed in the outer side of the main slit near the data line have different lengths.Type: GrantFiled: November 17, 2006Date of Patent: November 16, 2010Assignee: AU Optronics Corp.Inventors: Chia-Jung Yang, Jenn-Jia Su, Chieh-Ting Chen, Ting-Jui Chang
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Patent number: 7830482Abstract: A method for manufacturing a transflective LCD panel having a transmissive region and a reflective region includes steps of providing an upper substrate and a lower substrate in parallel, forming a first alignment film on the upper substrate, forming a reflective layer on the reflective region of the lower substrate, forming an first insulating layer to cover the reflective layer and the lower substrate, forming a second insulating layer to cover the first insulating layer, forming positive and negative driving electrodes wrapped in the second insulating layer, forming a coplanar second alignment film to cover the second insulating layer, packaging the upper substrate and the lower substrate, and filling liquid crystal molecules.Type: GrantFiled: February 15, 2010Date of Patent: November 9, 2010Assignee: Au Optronics CorporationInventors: Tzu-Yuan Lin, Chun-Hung Chiang, Fu-Cheng Hsieh, Po-Chang Wu, Ren-Hung Huang, Jin-Jei Wu, Chih-Ming Chang, Po-Lun Chen
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Patent number: 7830487Abstract: Provided is a liquid crystal display that includes a first substrate, a second substrate opposite to and facing the first substrate, and a liquid crystal layer interposed between the first substrate and the second substrate, wherein the first substrate includes a common electrode, the second substrate includes gate lines disposed on an insulating plate, first and second data lines insulated from and intersecting the gate lines and receiving complementary data signals, a first thin film transistor connected to the first data line, a second thin film transistor connected to the second data line, a first pixel electrode connected to an output terminal of the first thin film transistor, and a second pixel electrode connected to an output terminal of the second thin film transistor, the first pixel electrode has two or more interconnected sub-pixel electrodes, the second pixel electrode has two or more interconnected sub-pixel electrodes, and the sub-pixel electrodes of the first pixel electrode are interdigitatedType: GrantFiled: August 28, 2006Date of Patent: November 9, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-hoo Yoo, Hak-sun Chang, Hyun-wuk Kim, Hee-wook Do, Yoon-sung Um
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Patent number: 7826019Abstract: The present invention provides a liquid crystal display device using nematic liquid crystal material with low power consumption and having a memory characteristic which can be easily fabricated with a high yield. The liquid crystal device using nematic liquid crystal material includes: a pair of substrates (1,4) with plate-like electrode layers (2,5) thereon; a liquid crystal layer interposed between the pair of substrates (1,4); and alignment layers (3,6) arranged between the liquid crystal layer and at least one of the pair of substrates (1,4). The alignment layers (3,6) include a plurality of different alignment domains having a substantially vertical direction and substantially horizontal direction to the surface of the substrate. Both of two orientation states, i.e. a substantially vertical orientation state and a substantially horizontal orientation state of the liquid crystal, are stable and have a memory characteristic in the absence of an electric field.Type: GrantFiled: August 14, 2006Date of Patent: November 2, 2010Assignee: Japan Science and Technology AgencyInventors: Makoto Yoneya, Hiroshi Yokoyama
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Patent number: 7826018Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes: a substrate; and a pixel electrode disposed on the substrate. The pixel electrode includes a first subpixel electrode and a second subpixel electrode, wherein the first subpixel electrode includes a first electrode includes at least two substantially parallelogram shaped electrode pieces that have different inclination directions. The second subpixel electrode includes a second electrode disposed at a longitudinal position different from the first electrode, and the second electrode includes at least two substantially parallelogram shaped electrode pieces that have different inclination directions.Type: GrantFiled: December 27, 2005Date of Patent: November 2, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Gyu Kim, Sahng-Ik Jun, Sung-Jae Moon
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Patent number: 7826013Abstract: A liquid crystal display device and a method of fabricating the same are provided. The liquid crystal display device includes: a lower substrate having an opening region and a non-opening region adjacent to the opening region; a pixel electrode located on the opening region; an upper substrate located above the lower substrate and having an opposite surface facing the lower substrate; a protrusion type light shielding layer pattern located on a portion of the opposite surface corresponding to the non-opening region; an opposite electrode located on the protrusion type light shielding layer pattern; and an OCB mode liquid crystal layer located between the pixel electrode and the opposite electrode.Type: GrantFiled: November 9, 2005Date of Patent: November 2, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventor: Kyung-Ho Choi
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Patent number: 7821602Abstract: A method of manufacturing a liquid crystal display includes the steps of forming pixel electrodes on inside surfaces of a couple of substrates facing each other, each of the pixel electrodes having gaps; sealing, between the couple of substrates with the pixel electrodes formed, a liquid crystal layer containing a light curing material; and exposing the liquid crystal layer through use of a light shielding film having a plurality of openings, under a voltage applied between a pair of pixel electrodes facing each other on the couple of substrates, where the gaps are alternately disposed to form a staggered arrangement between the pair of pixel electrodes and, spacing between adjacent openings of the light shielding film is smaller than spacing, in a substrate surface direction, between the gap of a pixel electrode on one substrate and the gap of a pixel electrode on the other substrate.Type: GrantFiled: November 13, 2007Date of Patent: October 26, 2010Assignee: Sony CorporationInventors: Masahiko Mizuki, Tsuyoshi Kamada
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Patent number: 7821603Abstract: A vertical alignment type liquid crystal display device including a plurality of pixels, which further includes a first substrate and a second substrate and a liquid crystal layer between the first substrate and the second substrate. The first substrate and the second substrate include alignment control structures which extend linearly, and when viewed in a direction vertical to the first substrate, in a pixel, the alignment control structure of the first substrate and the alignment control structures of the second substrate are arranged alternately. The alignment control structure of the first substrate includes first and second linear portions, and distances between the first and second linear portions and an adjacent alignment control structure of the second substrate are different from each other. Additionally, each of the first and second linear portions and the alignment control structures of the second substrate are arranged in parallel.Type: GrantFiled: April 28, 2009Date of Patent: October 26, 2010Assignee: Sharp Kabushiki KaishaInventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Takashi Sasabayashi, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
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Patent number: 7821601Abstract: A display device includes a first panel and a second panel facing each other, a liquid crystal layer and a member for determining a tilt direction of liquid crystal molecules of the liquid crystal layer. The display device has a reflective area and a transmissive area. The liquid crystal layer is interposed between the first panel and the second panel. The member is disposed at a portion of the second panel corresponding to the reflective area. The display device realizes a multi-domain structure and prominent reflective efficiency is obtained by utilizing a projection area as a reflective area.Type: GrantFiled: June 17, 2005Date of Patent: October 26, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Il Kim, Jeong-Ye Choi, Jin-Hong Kim, Wang-Su Hong
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Patent number: 7821585Abstract: A liquid crystal display including the first and second substrates facing each other and a liquid crystal layer interposed between the first and second substrates is provided. A storage electrode, a transparent insulating layer pattern, and a pixel electrode are formed on the first substrate. A common electrode having a domain divider is formed on the second substrate. The transparent insulating layer pattern includes an opening having a first area having a first width and a second area having a second width narrower than the first width. The domain divider partially overlaps the storage electrode in the second area of the opening of the transparent insulating layer pattern.Type: GrantFiled: April 28, 2010Date of Patent: October 26, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun Park, In-Ho Park, Seong-Young Lee
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Publication number: 20100265442Abstract: The invention relates to a liquid crystal display used as a display section of an electronic apparatus and a method of manufacturing the same, and it is aimed at providing a liquid crystal display which can achieve high viewing angle characteristics and a method of manufacturing the same. A configuration is employed which includes a pair of substrates provided opposite to each other, a liquid crystal sealed between the pair of substrates, protrusions formed on at least one of the pair of substrates for regulating the alignment of the liquid crystal, and a plurality of pixel regions having both of a first area in which the protrusions are disposed at first intervals a2 and which has a first threshold voltage for driving of the liquid crystal and a second area in which the protrusions are disposed at second intervals a2 smaller than the first intervals and which has a second threshold voltage lower than the first threshold voltage.Type: ApplicationFiled: June 30, 2010Publication date: October 21, 2010Applicant: SHARP KABUSHIKI KAISHAInventors: Takashi Sasabayashi, Arihiro Takeda, Kazuya Ueda, Yoshio Koike, Hideaki Tsuda
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Patent number: 7812893Abstract: An active matrix substrate suppresses reduction in production yield and increase in production steps and simultaneously permits both sufficient securing of a storage capacity and improvement of an aperture ratio of a pixel. The active matrix substrate is an active matrix substrate and includes a thin film transistor disposed at an intersection of a scanning signal line with a data signal line on a substrate, the thin film transistor including a gate electrode connected to the scanning signal line, a source electrode connected to the data signal line, and a drain electrode connected to a drain lead-out wiring; a storage capacitor upper electrode connected to the drain lead-out wiring and a pixel electrode; and a storage capacitor wiring overlapping with the storage capacitor upper electrode through an insulating film, wherein the storage capacitor wiring has an extending portion overlapping with the drain lead-out wiring through the insulating film.Type: GrantFiled: September 20, 2005Date of Patent: October 12, 2010Assignee: Sharp Kabushiki KaishaInventors: Toshifumi Yagi, Toshihide Tsubata, Tsuyoshi Tokuda, Kenji Enda, Yoshinori Shimada, Shinya Maruoka
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Patent number: 7808593Abstract: A multi-domain liquid crystal display device includes first and second substrates facing each other; a liquid crystal layer between the first and second substrates; a plurality of gate bus lines arranged in a first direction on the first substrate and a plurality of data bus lines arranged in a second direction on the first substrate to define a pixel region; a electric field inducing window in the pixel region; and a photo alignment layer having a pre-tilt angle on at least one substrate.Type: GrantFiled: April 3, 2000Date of Patent: October 5, 2010Assignee: LG Display Co., Ltd.Inventors: Kyeong Jin Kim, Do Hee Kwon
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Patent number: 7808594Abstract: A liquid crystal display apparatus including a plurality of pixels, including a pair of substrates and a liquid crystal having a negative dielectric anisotropy inserted between the pair of substrates. First and second electrodes are formed on the pair of substrates, respectively. A first alignment control structure is formed linearly on one of the pair of substrates for controlling an alignment of the liquid crystal, and a second alignment control structure is formed linearly on the other of the pair of substrates for controlling an alignment of the liquid crystal. The first and second alignment control structures are bent in a zigzag fashion and extend parallel with each other, and at least one of the first and second alignment control structures includes a linear portion and a narrow portion having a width narrower than a width of the linear portion.Type: GrantFiled: July 31, 2009Date of Patent: October 5, 2010Assignee: Sharp Kabushiki KaishaInventors: Takahiro Sasaki, Arihiro Takeda, Katsufumi Ohmuro, Hideo Chida, Yoshio Koike, Kimiaki Nakamura, Kunihiro Tashiro
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Patent number: 7808567Abstract: A pixel structure is provided. The pixel structure comprises a lower substrate with a transistor and pixel area; a first patterned conductive layer, which has a data line and a gate within the transistor area that is disposed on the lower substrate; a patterned insulator layer covering the first patterned conductive layer; an active layer disposed on the patterned insulator layer above the gate; a second patterned conductive layer with a gate line disposed on the patterned insulator layer, source and drain, wherein the source and the drain are disposed on the active layer; a pixel electrode disposed on the patterned insulator layer and electrically connected to the drain; a patterned passivation layer disposed on the patterned insulator layer, gate line, source, drain and pixel electrode; and a third patterned conductive layer, which has a data line connecting electrode, a gate line connecting electrode, at least one alignment electrode and a common electrode.Type: GrantFiled: November 16, 2007Date of Patent: October 5, 2010Assignee: Au Optronics Corp.Inventors: Hsiang-Lin Lin, Seok-Lyul Lee, Tun-Chun Yang
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Patent number: 7804571Abstract: Structures, devices, systems and methods of using multi-domain vertical alignment liquid crystal displays with high transmittance, high contrast ratio and wide view angle in which at least one of the electrode substrates has circular or ring-shaped openings, such as holes or slits. Circular or ring-shaped patterns for openings and electrodes have not been used in the construction of a liquid crystal display. The new multi-domain vertical alignment (MDVA) liquid crystal display is particularly suitable for liquid crystal display television and computer monitor applications.Type: GrantFiled: October 3, 2008Date of Patent: September 28, 2010Assignees: University of Central Florida Research Foundation, Inc., Toppoly Optoelectronics Corp.Inventors: Ruibo Lu, Qi Hong, Shin-Tson Wu, Thomas X. Wu
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Patent number: 7804569Abstract: A panel assembly includes a gate wire, a data wire, a plurality of pixel electrodes, a liquid crystal layer, and a common electrode. The gate wire includes a plurality of gate lines and the data wire includes a plurality of data lines crossing and insulated from the gate lines. The pixel electrodes are insulated from each other and disposed on the data wire. The liquid crystal layer is disposed on the pixel electrodes and includes liquid crystal molecules, and a common electrode is disposed on the liquid crystal layer. The gate lines cross a center of the pixel electrodes, and the common electrode includes a plurality of cutting patterns that overlap the gate lines.Type: GrantFiled: November 20, 2007Date of Patent: September 28, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Ji-Won Sohn, Jin-Won Park, Seon-Ah Cho, Mee-Hye Jung, Sung-Hoon Yang