With Plural Alignments On The Same Substrate Patents (Class 349/129)
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Patent number: 7956964Abstract: A method for making an optical device includes the steps of: rubbing an orienting film so as to stretch the molecular structure thereof and so as to permit the molecular units of the molecular structure to be aligned along a first axis and to permit the orienting space between each adjacent pair of the molecular units of the molecular structure to be oriented in a direction parallel to a second axis; and forming an optical anisotropical layer on the orienting film by applying a liquid crystal film of rod-like molecules on the orienting film which orients the rod-like molecules by virtue of spatial effect of the molecular units and the orienting spaces.Type: GrantFiled: April 7, 2009Date of Patent: June 7, 2011Assignee: Far Eastern New Century CorporationInventors: Tsai-An Yu, Pi-Sung Lin, Chih-Jen Chen, Chiu-Fang Huang, Wen-Yi Lin
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Patent number: 7956956Abstract: An ECB-mode liquid crystal display device having a pair of substrates 9 and 12, a liquid crystal layer 11, a pair of polarizing plates (1,3,5) (16,18,20) and at least one optically anisotropic layer 7 and/or 14, wherein they are disposed such that the absorption axes 4 and 19 of the polarizing films 3 and 18 in the polarizing plates are parallel or vertical to the left-rightward direction of the screen of the display device. The orientation axes 10 and 13 of the substrates 9 and 12 and the orientation axes 8 and 15 of the optically anisotropic layers 7 and 14 preferably cross the absorption axes 4 and 19 of the polarizing films 3 and 18 of the adjacent polarizing plates at an angle of 45°.Type: GrantFiled: January 10, 2007Date of Patent: June 7, 2011Assignee: FUJIFILM CorporationInventors: Yukito Saitoh, Yusuke Ohashi, Katsufumi Ohmuro
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Patent number: 7956969Abstract: 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: June 7, 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: 7956973Abstract: A liquid crystal display device includes a first substrate and a second substrate with a liquid crystal material sandwiched therebetween, neighboring first, second, third and fourth regions arranged in a rectangular shape and in a clockwise direction, the first, second, third and fourth regions having a first pixel electrode, a second pixel electrode, a third pixel electrode and a fourth pixel electrode, respectively. The first pixel electrode and the third pixel electrode extend in a parallel direction to one another, and the second pixel electrode and the fourth pixel electrode extend in a parallel direction to one another.Type: GrantFiled: December 30, 2009Date of Patent: June 7, 2011Assignee: Hitachi, Ltd.Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
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Publication number: 20110128488Abstract: According to an exemplary embodiment of the present invention, a liquid crystal layer may be aligned by using an alignment layer including an alignment base layer having a horizontal alignment layer and a vertical alignment layer, and an alignment control agent. Accordingly, a multi-domain liquid crystal display having an excellent viewing angle for all grays may be provided. Also, a multi-domain liquid crystal display having a fast response speed as well as an excellent viewing angle for all grays may be provided.Type: ApplicationFiled: March 12, 2010Publication date: June 2, 2011Applicant: IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)Inventor: Jae-Hoon Kim
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Patent number: 7952669Abstract: A vertically aligned type liquid crystal display includes a liquid crystal layer disposed between pixel electrodes and a common electrode and containing vertically aligned liquid crystal molecules, the orientation of the liquid crystal molecules being controlled by an electric field. An orientation controller is formed on the common electrode at a position opposing the pixel electrode and an aspect ratio, i.e., a vertical to horizontal length ratio of the pixel electrode is set to at least 2. Alternatively, the pixel electrode is partitioned into at least two electrode regions so that each region represents a divided pixel electrode. An orientation controller is formed on the common-electrode so as to correspond to each divided pixel electrode, an aspect ratio of each divided pixel electrode is set to at least 2. As such, the influence at the edge sections of the pixel electrode is reduced, viewing angle characteristic and transmittance are improved, and average response time is shortened.Type: GrantFiled: February 20, 2009Date of Patent: May 31, 2011Assignee: Sanyo Electric Co., Ltd.Inventor: Norio Koma
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Patent number: 7948596Abstract: A liquid crystal display device comprising: (i) a first substrate and a second substrate positioned apart to define a cell gap, (ii) a liquid crystal layer positioned in the cell gap, and (iii) a plurality of gate lines arranged in a first direction and a plurality of data lines arranged in a second direction substantially perpendicular to the first direction to define a plurality of pixels, each pixel having a first portion and a second portion, and comprising: (a) a first dielectric layer formed on the first substrate, (b) a first pixel electrode formed on the first dielectric layer, (c) a second dielectric layer formed to at least partially cover the first pixel electrode, (d) a second pixel electrode formed on the second dielectric layer such that the second pixel electrode is connectable to the first pixel electrode, and (e) a common electrode formed on the second dielectric layer.Type: GrantFiled: October 31, 2007Date of Patent: May 24, 2011Assignee: AU Optronics CorporationInventors: Seok-Lyul Lee, Tun-Chun Yang, Chih-Ming Chang
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Patent number: 7948597Abstract: A liquid crystal display panel having improved optical transmissivity and viewing angle includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first base substrate, a plurality of gate lines and a plurality of data lines, and a pixel electrode. The gate lines and the data lines are disposed on the first base substrate and cross each other. The pixel electrode includes a first pixel electrode part and a second pixel electrode part disposed on the first base substrate and inclined in a different direction from each other with respect to the gate lines. The second substrate includes a second base substrate and a common electrode disposed on the second base substrate and alternately positioned with the pixel electrode.Type: GrantFiled: January 24, 2007Date of Patent: May 24, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-Seop Kim, Jun-Woo Lee, Jiangang Lu, Eun-Hee Han
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Patent number: 7944534Abstract: The present invention provides a liquid crystal display device used as a display part of an electronic apparatus which exhibits high brightness and favorable display quality. The liquid crystal display device includes a pair of substrates which are arranged to face each other in an opposed manner; vertical-alignment type liquid crystal which is sealed between the pair of substrates; a plurality of pixel regions, each pixel region including a sub pixel having a pixel electrode on one substrate and a sub pixel having a pixel electrode on one substrate, a slit formed between the pixel electrodes; and a singular point control part which includes projecting portions which are formed on end portions of the pixel electrodes on the slit-side and controls singular points of the liquid crystal.Type: GrantFiled: January 5, 2010Date of Patent: May 17, 2011Assignee: Sharp Kabushiki KaishaInventors: Yasutoshi Tasaka, Takahiro Sasaki, Yohei Nakanishi, Masakazu Shibasaki, Takashi Sasabayashi, Hidefumi Yoshida, Tsuyoshi Kamada, Hideaki Tsuda, Kazuya Ueda
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Patent number: 7944533Abstract: The present invention achieves the multi-domain configuration by providing an insulation film region at least one location in each pixel on one substrate of a pair of substrates of an active matrix multi-domain vertically aligned liquid crystal display for differentiating electrical potential to be applied to a certain zone of the liquid crystal from that to the liquid crystal at the other area when a voltage is applied to the liquid crystal, thereby causing different electrical potential gradients in at least two directions.Type: GrantFiled: February 5, 2008Date of Patent: May 17, 2011Assignee: Chimei Innolux CorporationInventors: Yasui Masaru, Masahide Inoue, Minoru Shibazaki
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Patent number: 7944532Abstract: A liquid crystal display device includes a pair of substrates, a liquid crystal between substrates and alignment layers disposed on the inner surface sides of the substrates. The alignment layer is made from a material including polyamic acid containing a diamine component and polyimide containing a diamine component different from the diamine component of the polyamic acid. The alignment layer is subjected to alignment treatment by irradiation of light. UV light can be irradiated in the oblique direction onto the alignment layer through a mask having openings. A reflecting plate can be arranged between a UV light source and the mask. Also, bank structures having a thickness from 0.1 to 0.15 ?m can be provided on the alignment layer of the TFT substrate.Type: GrantFiled: July 19, 2010Date of Patent: May 17, 2011Assignee: Sharp Kabushiki KaishaInventors: Hideo Chida, Hidefumi Yoshida, Yasutoshi Tasaka
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Patent number: 7944515Abstract: A flat panel display having an improved picture quality is disclosed. In one embodiment, a first pixel electrode and a second pixel electrode are formed in each subpixel area. The electrodes enclose an open space (gap) such that their outer boundary has a substantially rectangular shape. The flat panel display may also include a capacitance electrode coupled to the second pixel electrode to form a coupling capacitor. In use, the coupling capacitor operates such that a magnitude of a voltage applied to the first pixel electrode is lower than an applied data voltage, and a magnitude of a voltage applied to the second pixel electrode is higher than an applied voltage. The different voltages operate such that a tilt direction of LC molecules disposed above the first pixel electrode differs from a tilt direction of LC molecules disposed above the second pixel electrode.Type: GrantFiled: March 30, 2010Date of Patent: May 17, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Jang-Kun Song
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Patent number: 7944529Abstract: 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: October 7, 2010Date of Patent: May 17, 2011Assignee: Hitachi Displays, Ltd.Inventors: Takahiro Ochiai, Toshio Miyazawa, Masahiro Maki, Tohru Sasaki, Masateru Morimoto
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Publication number: 20110109856Abstract: Method and structure for electro-plating aluminum species for top metal formation of liquid crystal on silicon displays. In a specific embodiment, the invention provides a method for fabricating a liquid crystal on silicon display device. The method includes providing a substrate, e.g., semiconductor wafer, silicon wafer, silicon on insulator. The method includes forming a transistor layer (e.g., MOS transistors) overlying the substrate. The method includes forming an interlayer dielectric layer (e.g., PSG, BPSG, FSG) overlying the transistor layer. The method includes forming a first conductive layer overlying the interlayer dielectric layer and forming a second interlayer dielectric layer overlying the first conductive layer. A dual damascene via structure is formed within the second interlayer dielectric layer. The method deposits a barrier metal layer (e.g., TiN, Ti/TiN) within the dual damascene via structure to form a liner that covers exposed regions of the dual damascene via structure.Type: ApplicationFiled: November 2, 2010Publication date: May 12, 2011Applicant: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (SHANGHAI) CORPORATIONInventors: HERB HUANG, WEI MIN LI
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Publication number: 20110109857Abstract: A liquid crystal display device, comprising: a pair of substrates at least one of which is transparent; a liquid crystal layer arranged between the pair of substrates; a group of electrodes for applying an electric field to the liquid crystal layer, as formed on at least one substrate of the pair of substrates; a plurality of active elements connected to the group of electrodes; and an orientation film arranged on the pair of substrates, wherein at least one orientation film contains a polyimide having a specific chemical structure of any of an anionic organic acid except organic acids in the narrow sense, or an acid ester group of an anionic organic acid except organic acids in the narrow sense.Type: ApplicationFiled: November 3, 2010Publication date: May 12, 2011Inventors: Yasuo IMANISHI, Masaki Matsumori, Yasushi Tomioka
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Patent number: 7940358Abstract: Provided are an LCD device that can control a viewing angle freely and a manufacturing method thereof. The LCD device includes a first substrate, a second substrate, and an LC layer interposed between the first and second substrates. The LCD device further includes red, green, blue, and viewing angle controlling subpixels. These subpixels are driven in a VA mode. The red, green, and blue subpixels have a transflective structure. The viewing angle controlling subpixel has a transmissive or transflective structure.Type: GrantFiled: July 17, 2007Date of Patent: May 10, 2011Assignee: LG Display Co., Ltd.Inventors: Hyun Suk Jin, Hyung Seok Jang, Tae Han Kim
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Patent number: 7936436Abstract: The present invention lowers leaking of light at the time of performing a black display of VA-type liquid crystal display device and, at the same time, prevents lowering of a numerical aperture. In a liquid crystal display device having a liquid crystal display panel which sandwiches a liquid crystal material between a first substrate having a pixel electrode and a second substrate having a counter electrode, the second substrate includes an orientation control projection which is formed by forming a conductive film on the second substrate, by forming an insulation film on the conductive film and, thereafter, by patterning the insulation film, and a light shielding layer which is formed by patterning the conductive film using the orientation control projection as a mask.Type: GrantFiled: November 4, 2009Date of Patent: May 3, 2011Assignee: Hitachi Displays, Ltd.Inventors: Takahiro Ochiai, Tohru Sasaki
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Patent number: 7936407Abstract: An array substrate includes a switching device, a storage capacitor and a voltage-dividing capacitor. The switching device is formed in a pixel region defined by two gate lines adjacent to each other and two data lines adjacent to each other. The storage capacitor is electrically connected to the switching device. The voltage-dividing capacitor is disposed between the storage capacitor and one of the gate lines. The voltage-dividing capacitor is electrically connected to the storage capacitor. Therefore, an overlapping area with the data lines is reduced to reduce the RC delay and enhance aperture ratio. Furthermore, a possibility of occurrence of an electrical short is reduced.Type: GrantFiled: February 14, 2006Date of Patent: May 3, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: In-Woo Kim, Sun-Ok Song
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Patent number: 7929093Abstract: A pixel structure including an active device and a pixel electrode is provided. The pixel electrode is electrically connected with the active device and has a plurality of alignment domains. Each of the alignment domains of the pixel electrode has one group of alignment slits parallel with one another, wherein each group of the alignment slits includes a plurality of first alignment slits with a first length and the first alignment slits are majority of each group of the alignment slits. At least one group of the alignment slits includes at least a second alignment slit with a second length longer than the first length of the first alignment slits.Type: GrantFiled: March 19, 2008Date of Patent: April 19, 2011Assignee: Au Optronics CorporationInventors: Sung-Kao Liu, Shih-Chyuan Fan Jiang, Ching-Huan Lin, Chih-Ming Chang
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Patent number: 7929094Abstract: A liquid crystal display device 700 includes a pair of substrates, a vertical alignment type liquid crystal layer 490 provided between the pair of substrates, and electrodes 481 and 485 for applying a voltage to the vertical alignment type liquid crystal layer 490. At least one of the pair of substrates has a rugged structure on a surface which is in contact with the vertical alignment type liquid crystal layer. The surface having the rugged structure formed thereon has a region in which the height of the rugged structure varies along a first direction with a first period and varies along a second direction perpendicular to the first direction with a second period different from the first period. The first period is no less than 0.1 ?m and no more than 10 ?m, and the second period is no less than 0.1 ?m and no more than 10 ?m. The vertical alignment type liquid crystal layer 490 has a pretilt due to the rugged structure with no voltage applied thereacross.Type: GrantFiled: April 20, 2005Date of Patent: April 19, 2011Assignee: Sharp Kabushiki KaishaInventor: Tadashi Kawamura
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Patent number: 7929091Abstract: In a method of manufacturing a display panel, a first alignment member is formed on a first substrate. Liquid crystal is sealed between the first substrate and a second substrate opposite to the first substrate. Then, an electric field is applied to the liquid crystal to align the liquid crystal. Ultraviolet light is irradiated onto the first alignment member to form a second alignment member while applying the electric field to the liquid crystal.Type: GrantFiled: January 22, 2009Date of Patent: April 19, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-Hwan Shin, Jun-Woo Lee
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Publication number: 20110085118Abstract: A display panel provided with a first region and a second region includes an active device array substrate, an opposite substrate, a display medium between the active device array substrate and the opposite substrate and a conductive member. The active device array substrate includes an active device array, a pad located in the second region and a first alignment layer covering the first region and the second region. The opposite substrate includes an electrode layer and a second alignment layer covering the electrode layer. The ratio of a thickness of the first or second alignment layer in the second region to that in the first region is substantially greater than zero and less than or equal to about 0.43. The conductive member is located in the second region and corresponding to the pad and penetrates the first alignment layer and the second alignment layer to connect the electrode layer and the pad.Type: ApplicationFiled: November 24, 2009Publication date: April 14, 2011Applicant: AU OPTRONICS CORPORATIONInventor: Yi-Hau Shiau
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Publication number: 20110085097Abstract: A wide variety of different alignment polar angles can be created in the alignment layers of a liquid crystal display with just a small number of UV exposure steps by using one or a combination of overlappable UV masks, where the one or more combinations of overlappable UV masks simultaneously define a maximal transmission region, an intermediate transmission region and a nontransmitting (blocking) region. UV rays are irradiated through masks in different irradiation directions while the mask or masks are disposed in different orientations.Type: ApplicationFiled: September 2, 2010Publication date: April 14, 2011Inventors: Jun-Woo LEE, Jin-Soo Jung, Suk-Hoon Kang, Tae-Ho Kim, Soo-Ryun Cho, Baek-Kyun Jeon
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Publication number: 20110085119Abstract: A display panel having a first region, a second region and a third region is provided. The display panel includes an active device array substrate, an opposite substrate, a display medium between the active device array substrate and the opposite substrate, and spacers arranged between the active device array substrate and the opposite substrate for maintaining a cell gap. The active device array substrate includes an active device array in the first region, a pad in the second region, a driving circuit in the third region, and a first alignment layer covering the first region, the second region and the third region. A thickness of the first alignment layer in the third region corresponding to the driving circuit is increased to be greater than those in the first region and the second region for buffering the pressure applied by the spacers.Type: ApplicationFiled: September 6, 2010Publication date: April 14, 2011Applicant: AU OPTRONICS CORPORATIONInventor: Yi-Hau Shiau
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Patent number: 7924383Abstract: A liquid crystal display device is provided for not reducing the aperture ratio and improving transmittance. The liquid crystal display device comprises a substrate with a pixel electrode, a substrate with a common electrode, and a liquid crystal layer therebetween, wherein liquid crystal molecules of the liquid crystal layer are vertically aligned when no voltage is applied, each pixel comprises one or more sub-pixels, and cross-shaped slits are formed on the common electrode corresponding to each sub-pixel.Type: GrantFiled: May 16, 2008Date of Patent: April 12, 2011Assignee: Chimei Innolux CorporationInventors: Satoru Takahashi, Masaru Sugiyama
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Patent number: 7924352Abstract: A pixel structure of a liquid crystal display panel includes a first transparent substrate, a first data line, a second data line, a transparent electrode, and a compensating conducting pattern layer. In a display region, the first side of the transparent electrode and the first data line partially overlap, forming a first parasitic capacitor, the second side of the transparent electrode and the second data line partially overlap, forming a second parasitic capacitor smaller than the first parasitic capacitor. In a non-display region, the first side of the transparent electrode and the first data line partially overlap, forming a third parasitic capacitor, and the second side of the transparent electrode and the compensating conducing pattern layer partially overlap, forming a fourth parasitic capacitor. The total parasitic capacitance of the first and the third parasitic capacitors and the total parasitic capacitance of the second and the fourth parasitic capacitors are substantially equal.Type: GrantFiled: November 12, 2008Date of Patent: April 12, 2011Assignee: AU Optronics Corp.Inventors: Chia-Chiang Hsiao, Cheng Lo, Ching-Sheng Cheng, Chih-Jen Hu
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Patent number: 7924382Abstract: A color filter substrate for a liquid crystal display device includes a color layer, a photo spacer and a counter electrode disposed on the substrate, and an alignment control protrusion is disposed on the counter electrode for controlling alignment of liquid crystal. A manufacturing method for the color filter substrate includes the step of forming an opening by laser irradiation in a region of the counter electrode corresponding to an absent portion occurring in the alignment control protrusion. The manufacturing method is also applicable to an active matrix substrate for a liquid crystal display device. The manufacturing method can effectively correct a defect if one occurs in the alignment control protrusion.Type: GrantFiled: May 12, 2006Date of Patent: April 12, 2011Assignee: Sharp Kabushiki KaishaInventors: Toshifumi Yagi, Toshihide Tsubata, Yoshinori Shimada
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Patent number: 7924381Abstract: A method for producing a liquid crystal display device including a first irradiation step for realizing alignment of liquid crystals in a first azimuth direction on a first alignment layer by obliquely irradiating the first substrate, a second irradiation step for realizing alignment of liquid crystals in a second azimuth direction by obliquely irradiating a region of the first substrate where irradiation has not been conducted in the first irradiation step with rays in an azimuth direction that is 180 degrees different from an azimuth direction of irradiation in the first irradiation step, a third irradiation step for realizing alignment of liquid crystals in a third azimuth direction on a second alignment layer by obliquely irradiating the second substrate, and a sticking step of sticking together the first and second substrates such that the first azimuth direction and the third azimuth direction are perpendicular to each other.Type: GrantFiled: August 21, 2008Date of Patent: April 12, 2011Assignee: Sharp Kabushiki KaishaInventors: Hidefumi Yoshida, Tsutomu Seino, Yasutoshi Tasaka
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Patent number: 7920239Abstract: A liquid crystal display device including first and second substrates, liquid crystal between the substrates, a plurality of gate bus lines extending in a first direction, a plurality of drain bus lines extending in a second direction, and a picture element electrode. The picture element electrode includes a body portion and a plurality of branches, separated by slits, extending therefrom. The body portion includes a first body portion extending generally in the first direction and a second body portion extending generally in the second direction, and further wherein the first body portion includes at least one wide portion and at least one narrow portion. The liquid crystal display device also includes a capacitor electrode and a capacitor upper electrode that overlap the wide portion. The capacitor upper electrode connects to the picture element electrode through a contact hole formed at the wide portion.Type: GrantFiled: May 21, 2010Date of Patent: April 5, 2011Assignee: Sharp Kabushiki KaishaInventors: Yohei Nakanishi, Kunihiro Tashiro, Katsufumi Ohmuro, Kazutaka Hanaoka, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Naoto Kondo, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa
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Patent number: 7916226Abstract: A thin film transistor array panel according to an embodiment includes: a substrate; a plurality of gate line formed on the substrate; a plurality of first capacitor electrodes formed on the substrate and separated from the gate lines; a plurality of data line intersecting the gate lines; a plurality of thin film transistor connected to the gate lines and the data lines; a plurality of second capacitor electrodes disposed on the first electrode; a plurality of interconnections connected to the second capacitor electrodes and the thin film transistor and disposed symmetrical to the data lines; and a plurality of pixel electrode, each pixel electrode including a first subpixel electrode connected to one of the thin film transistors and a second subpixel electrode connected to one of the first capacitor electrodes.Type: GrantFiled: October 1, 2009Date of Patent: March 29, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Chang-Hun Lee, Hyun-Wuk Kim, Mee-Hye Jung, Kyoung-Ju Shin, Hak-Sun Chang, Yoon-Sung Um
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Patent number: 7916256Abstract: A liquid crystal display device including a pair of substrates, a first alignment layer formed on one substrate and a second alignment layer formed on the other substrate, and a plurality of pixels, each having four different alignment regions. The first alignment layer is treated to define two different pretilt directions for the liquid crystal molecules within the four alignment regions, wherein the two different pretilt directions are opposite each other and both extend in a generally parallel direction to a first boundary defined between two regions in which the two different pretilt directions are defined, and said second alignment layer defines another two different pretilt directions within the four alignment regions, wherein the two different pretilt directions are opposite each other and both extend in a generally parallel direction to a second boundary defined between two regions in which the another two different pretilt directions are defined.Type: GrantFiled: August 21, 2008Date of Patent: March 29, 2011Assignee: Sharp Kabushiki KaishaInventors: Hidefumi Yoshida, Tsutomu Seino, Yasutoshi Tasaka
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Publication number: 20110069268Abstract: The present invention relates generally to the field of electronics and may be used for making displays and, in particular, liquid crystal information displays, panels, cells e.t.c. The object of invention is to simplify the method for making liquid crystal devices by reducing the number of technological operations and consequently to reduce the cost of liquid crystal display without sacrificing the quality (wide viewing angle). To achieve this the electric field applied to the liquid crystal in such display has the non-uniform component parallel to the plane of the substrates, which leads to the non-uniform reorientation of the aforementioned liquid crystal in the space between the aforementioned electrodes within the pixel area and hence improves optical properties of this display in various directions of observation.Type: ApplicationFiled: September 23, 2010Publication date: March 24, 2011Inventors: Sergey E. Yakovenko, Anatoly A. Minko, Victor A. Konovalov, Anatoly A. Muravsky
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Patent number: 7911573Abstract: A liquid crystal display device including first and second substrates, a liquid crystal layer, a plurality of gate bus lines extending in a first direction, a plurality of drain bus lines extending in a second direction, at least one auxiliary capacitance bus line extending in the first direction, a first sub picture element electrode, a second sub picture element electrode, and first and second auxiliary capacitance lower electrodes extending from the auxiliary capacitance bus line in the second direction, such that a combination of the first and second auxiliary capacitance lower electrodes and a portion of the auxiliary capacitance bus line within a picture element region form a generally cross-shaped structure. Also, a portion of the first sub picture element electrode overlaps a portion of the first auxiliary capacitance lower electrode, a portion of the second auxiliary capacitance lower electrode, and a portion of the auxiliary capacitance bus line.Type: GrantFiled: May 21, 2010Date of Patent: March 22, 2011Assignee: Sharp Kabushiki KaishaInventors: Yohei Nakanishi, Kunihiro Tashiro, Katsufumi Ohmuro, Kazutaka Hanaoka, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Naoto Kondo, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa
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Patent number: 7911572Abstract: A liquid crystal display device and fabrication method is provided. The liquid crystal display device includes first and second substrates facing each other and a liquid crystal layer between the first and second substrates. Gate and data lines disposed on the first substrate cross each other to define a pixel region. A first protrusion extends from the gate line at a crossing of the gate line and the data line. A second protrusion extends from the data line at the crossing of the gate line and the data line. A thin film transistor is connected to the gate line and the data line. A pixel electrode in the pixel region is connected to the thin film transistor.Type: GrantFiled: June 26, 2009Date of Patent: March 22, 2011Assignee: LG Display Co., Ltd.Inventor: Jin-Mo Yoon
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Patent number: 7910924Abstract: A liquid crystal apparatus is provided wherein the liquid crystal layer comprises a section formed by polymerizing a polymerizable compound in the presence of a liquid crystal by selectively irradiating active energy rays onto the substrate surface when no voltage is applied, or alignment control layers and bumps are formed by polymerizing a polymerizable compound which is added to said liquid crystal, or first electrodes with a vertical alignment control film and a second electrode with a horizontal alignment control film face each other and alignment control of the liquid crystal is performed by irradiating light from a direction tilted from the normal line direction on said liquid crystal display apparatus. A liquid crystal display apparatus which can implement high transmittance, high-speed response and a wide viewing angle can be provided.Type: GrantFiled: March 1, 2007Date of Patent: March 22, 2011Assignee: Sharp Kabushiki KaishaInventors: Takashi Sasabayashi, Arihiro Takeda, Yoshio Koike, Takahiro Sasaki, Hidefumi Yoshida, Kazutaka Hanaoka
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Publication number: 20110063547Abstract: The present invention provides an elliptical polarizer with excellent viewing angle characteristics. The elliptical polarizer comprises at least a first polarizer, a first optically anisotropic layer, a second optically anisotropic layer, and a third optically anisotropic layer, laminated in this order, the first optically anisotropic layer satisfying [1] 50?Re1?500, [2] 30?Rth1?750, and [3] 0.6?Rth1/Re1?1.5, the second optically anisotropic layer satisfying [4] 0?Re2?20 and [5] ?500?Rth2??30, and the third optically anisotropic layer satisfying [6] 100?Re3?180, [7] 50?Rth3?600, and [8] 0.5?Rth3/Re3?3.5, wherein Re indicates the retardation value in the plane of each optically anisotropic layer and Rth indicates the retardation value in the thickness direction of each optically anisotropic layer.Type: ApplicationFiled: April 20, 2009Publication date: March 17, 2011Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Yuji Takahashi, Tetsuya Uesaka, Satoru Ikeda
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Patent number: 7903211Abstract: A liquid crystal display including a first substrate including a gate bus line, a data bus line intersecting the gate bus line, a thin film transistor formed near an intersection between the gate bus line and the data bus line, and a pixel electrode including a transmission electrode electrically connected to the thin film transistor and a reflection electrode electrically connected to the transmission electrode, a second substrate opposed to the first substrate and including an opposed electrode opposed to the pixel electrode, and a liquid crystal layer sealed between the first substrate and the second substrate. The transmission electrode includes a plurality of electrode units interconnected to each other by an interconnection pattern, and the reflection electrode is formed over the electrode unit with an insulation layer with convexities formed in the surface of the insulation layer.Type: GrantFiled: April 9, 2007Date of Patent: March 8, 2011Assignees: Fujitsu Limited, AU Optronics CorporationInventors: Kunihiro Tashiro, Yasutoshi Tasaka, Katsufumi Ohmuro, Hidefumi Yoshida, Yoshinori Tanaka, Norio Sugiura, Seiji Doi, Manabu Sawasaki, Tomonori Tanose, Isao Tsushima, Tetsuya Fujikawa, Tomoshige Oda
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Patent number: 7903216Abstract: A liquid crystal device is provided in which a liquid crystal layer formed of a liquid crystal having a negative dielectric anisotropy is interposed between a first substrate and a second substrate disposed opposite to each other, the liquid crystal device including: an alignment film controlling the liquid crystal, the alignment film being disposed between the liquid crystal layer and the first substrate and between the liquid crystal layer and the second substrate in a vertical direction; a first wave plate and a first polarizing plate provided on a surface of the first substrate opposite to the liquid crystal layer; and a second wave plate and a second polarizing plate provided on a surface of the second substrate opposite to the liquid crystal layer. Here, an alignment control portion controlling alignment of the liquid crystal of the liquid crystal layer is provided on at least one of the first substrate and the second substrate.Type: GrantFiled: December 11, 2006Date of Patent: March 8, 2011Assignee: Sony CorporationInventor: Hitoshi Tsuchiya
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Patent number: 7903208Abstract: A color filter substrate for a liquid crystal display and a method of fabricating the same are provided. The color filter substrate for a liquid crystal display includes: light shielding parts formed on a front surface of a substrate at predetermined intervals to prevent light leakage; color filter Layers disposed between the light shielding parts on the front surface of the substrate and including color filter patterns of red (R), green (G) and blue (B) for implementing a color image; and a transparent conductive layer formed on a rear surface of the substrate, where the rear surface of the substrate is opposite the front surface of the substrate on which the color filter layers are formed, and formed in a porous structure having a plurality of holes spaced at predetermined intervals. Therefore, it is possible to shield an electrostatic field due to external static electricity and improve image display quality, thereby increasing high brightness characteristics and readability.Type: GrantFiled: April 8, 2008Date of Patent: March 8, 2011Assignee: Hydis Technologies Co., Inc.Inventors: Cheol Hwan Lee, Yoon Seok Choi, Dae Suk Kim, Suk Choi
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Patent number: 7903217Abstract: A liquid crystal display (LCD) panel and an LCD device using the same are provided. The LCD panel at least includes a first color pixel and a second color pixel for displaying different colors. The second color pixel is disposed next to the first color pixel. The liquid crystal molecules in the first color pixel have at least four liquid crystal (LC) orientations including a first LC orientation. The liquid crystal molecules in the second color pixel have a plurality of LC orientations including a second LC orientation. The first LC orientation is different from all LC orientations of the second color pixel.Type: GrantFiled: November 11, 2008Date of Patent: March 8, 2011Assignee: Chi Mei Optoelectronics Corp.Inventors: Che-Ming Hsu, Chien-Hong Chen, Ming-Feng Hsieh
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Patent number: 7898624Abstract: A liquid crystal display (LCD) includes a pixel array substrate, an opposite substrate and a liquid crystal layer disposed between the pixel array substrate and the opposite substrate. The opposite substrate has a common electrode. The pixel array substrate has a plurality of pixel regions, a plurality of first pixel electrodes and a plurality of second pixel electrodes. Within each of the pixel regions, a corresponding first pixel electrode and a corresponding second pixel electrode are disposed, wherein each of the second pixel electrodes entirely encloses the corresponding first pixel electrode and is separated from the corresponding first pixel electrode.Type: GrantFiled: September 12, 2008Date of Patent: March 1, 2011Assignee: Chimei Innolux CorporationInventors: Chih-Yung Hsien, Chien-Hong Chen, Ying-Jen Chen
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Patent number: 7898623Abstract: The present invention provides a display device which can display characters clearly and display images smoothly. An area gray scale method is adopted and a configuration of one pixel is changed depending on a mode, by selecting one or more display regions in each pixel. When characters are needed to be displayed clearly, one pixel is configured by selecting a stripe arrangement. Thus, clear display can be conducted. When images are needed to be displayed, one pixel is configured by selecting an indented state. Thus, smooth display can be conducted.Type: GrantFiled: June 23, 2006Date of Patent: March 1, 2011Assignee: Semiconductor Energy laboratory Co., Ltd.Inventors: Hajime Kimura, Shunpei Yamazaki
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Patent number: 7898626Abstract: A liquid crystal display includes a first substrate and a second substrate, a liquid crystal between the first and second substrates, and first and second structures provided on the first and second substrates to regulate orientation of liquid crystal molecules in the liquid crystal layer.Type: GrantFiled: May 18, 2009Date of Patent: March 1, 2011Assignee: Chimei Innolux CorporationInventors: Che-Ming Hsu, Ming-Feng Hsieh, Chin-Yung Hseih, Chien-Hong Chen
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Patent number: 7894031Abstract: A pixel structure for a horizontal field LCD comprises a plurality of pixel units. Each of the pixel units comprises a gate line corresponding to the pixel unit, a data line corresponding to the pixel unit, and at least one TFT, wherein the TFT is electrically connected with the gate line and the data line, the gate line and the data line divide the pixel unit into four sub-pixels, the sub-pixel is provided with a pixel electrode which is electrically connected with the TFT, and the pixel electrode is provided with a plurality of slits in a predetermined direction.Type: GrantFiled: May 29, 2008Date of Patent: February 22, 2011Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.Inventor: Jaikwang Kim
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Publication number: 20110037932Abstract: In a multi-domain vertical alignment liquid crystal display, a pixel electrode, a common electrode and liquid crystal molecules are combined to form an LC alignment unit. In the LC alignment unit, at least two slits crossing each other at one point are created in the common electrode; and slanting slits are created in the pixel electrode, extending along diagonals of the pixel electrode. The slits in the common electrode and the slits in the pixel electrode stagger from one another.Type: ApplicationFiled: August 12, 2010Publication date: February 17, 2011Applicant: CHIMEI INNOLUX CORPORATIONInventor: Satoru Takahashi
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Patent number: 7889300Abstract: The present invention provides a liquid crystal display device including a liquid crystal layer disposed between a first substrate and a second substrate, a pixel electrode in a reflection region and a transmission region over the first substrate, a film for adjusting a cell gap in the reflection region over the first substrate, and an opposite electrode in the reflection region and the transmission region over the second substrate. The pixel electrode in the reflection region is provided over the film and reflects light. The pixel electrode in the transmission region transmits light. The pixel electrode in the reflection region and the transmission region includes a slit. The slit is overlapped with at least a part of a step portion which is provided by the film between the reflection region and the transmission region.Type: GrantFiled: November 9, 2009Date of Patent: February 15, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
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Publication number: 20110032466Abstract: A pixel of a liquid crystal display device of the present invention includes first and second linear alignment control structures 10a, 20a. The first and second linear alignment control structures each include a first component extending along a first axis L1 and a second component extending along a second axis L2 that is different from the first axis. Each of the first and second axes generally bisects angles between the polarization axes of the pair of polarizing plates. At least one group of the first and second linear alignment control structures are ribs 20a. A first component 20a1 of the rib includes three or more first linear portions arranged along the first axis. The first linear portions are arranged such that adjacent two form an angle of ?1 where 50°??1<180° and that the direction which bisects ?1 is generally perpendicular to the first axis. A second component 20a2 of the rib includes three or more second linear portions arranged along the second axis.Type: ApplicationFiled: April 10, 2009Publication date: February 10, 2011Applicant: SHARP KABUSHIKI KAISHAInventors: Hiroyuki Hakoi, Iichiroh Inoue, Koichi Miyachi
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Patent number: 7884908Abstract: Each pixel has a transmissive area and a reflective area. A first alignment process area and a second alignment process area are placed such that an overlapping region is created in part of the reflective area. A region where the liquid crystal alignment direction shifts continuously is created in a boundary between the transmissive are a and the reflective are a without exception. A first liquid crystal alignment region is formed wider than the transmissive area, and a second liquid crystal alignment region is formed narrower than the reflective area.Type: GrantFiled: December 23, 2008Date of Patent: February 8, 2011Assignee: Hitachi Displays, Ltd.Inventors: Shoichi Hirota, Masaki Matsumori, Tetsuya Nagata, Shinichiro Oka
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Patent number: 7884906Abstract: It is an object of the present invention to provide a substrate for liquid crystal display by means of which a generation of air bubbles in a liquid crystal layer after charging a liquid crystal can be prevented, and a liquid crystal display having a good display quality level can be obtained at a high yield, and to provide a liquid crystal display unit provided with such substrate for liquid crystal display. The present invention is directed to a substrate for liquid crystal display, comprising a projection for controlling alignments of liquid crystal molecules, wherein a slit is provided in the projection for controlling alignments of liquid crystal molecules.Type: GrantFiled: May 26, 2005Date of Patent: February 8, 2011Assignee: Sharp Kabushiki KaishaInventors: Masayuki Tsuji, Toshihide Tsubata, Yuhko Hisada
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Patent number: 7884905Abstract: This invention relates to a liquid crystal device wherein the surface profile of a surface alignment grating stabilizes at least one stable state. The invention involves the introduction or breaks (34, 36, 38) or discontinuities into the grating (10) to divide the grating into a plurality of groove segments. The breaks are discontinuities in the grating in the groove direction, the grating having substantially the same groove direction on each side of the break. The introduction of breaks prevent free movement of defects along the groove of the grating and therefore help to stabilize the desired liquid crystal configuration, either a Defect state or a Continuous state. Suitable breaks involve gaps (34) in the groove ridges (30), necks (36) between the groove ridges (30) and slips or relative displacement (38) of the grating.Type: GrantFiled: February 9, 2004Date of Patent: February 8, 2011Assignee: ZBD Displays LimitedInventor: John Clifford Jones