Nominal Manufacturing Methods Or Post Manufacturing Processing Of Liquid Crystal Cell Patents (Class 349/187)
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Publication number: 20130100390Abstract: The invention discloses a liquid crystal substrate, a manufacturing method thereof, and an LCD device. A liquid crystal substrate comprises electrode(s), and the electrode is made of transparent conductive colloid. In the invention, because the transparent conductive colloid is used to replace ITO films to make the electrodes, and the transparent conductive colloid (such as nanometer silver colloid, carbon nanotube colloid and the like) forms a film after being applied and cured. Thus, the liquid crystal substrate has the advantages of low cost, simple process, immediate etching after being applied and dried. The cost of equipment required by PVD during ITO preparation is reduced, the FAB space is effectively used, the use amount of metal such as indium, tin and the like is reduced, the cost of equipment for manufacturing LCDs and liquid waste disposal is reduced, the manufacturing time is reduced, and the output is increased.Type: ApplicationFiled: November 8, 2011Publication date: April 25, 2013Inventor: Yewen Wang
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Patent number: 8427611Abstract: A production method for making a liquid crystal display device includes subjecting a first alignment film and/or a second alignment film to scanning exposure continuously over a plurality of pixel regions; the scanning exposure including, in an inside of each of a plurality of pixel regions, a first scanning exposure for aligning liquid crystal molecules in a first alignment direction and a second scanning exposure for aligning liquid crystal molecules in a second alignment direction. The second alignment direction may be parallel and opposed to the first alignment direction. In the exposures, a light beam may be made incident from a oblique direction to a normal line on the substrate surface.Type: GrantFiled: May 14, 2012Date of Patent: April 23, 2013Assignee: Sharp Kabushiki KaishaInventors: Hiroyuki Hakoi, Iichiro Inoue, Koichi Miyachi
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Patent number: 8427625Abstract: Provided are an optical display device manufacturing system and a method for manufacturing an optical display device which can bond optical films to both surfaces of a liquid crystal cell in good condition with a simpler constitution. A first optical film F11 is fed in an orthogonal direction with respect to the width direction from a first material roll R1 formed by winding the first optical film F11 in such a manner that an absorption axis B1 extends in the orthogonal direction, and then the first optical film F11 is cut and bonded to one surface of a liquid crystal cell. A second optical film F21 is fed in an orthogonal direction with respect to the width direction from a second material roll R2 formed by winding the second optical film F21 in such a manner that an absorption axis B2 extends in the width direction, and then the second optical film F21 is cut and bonded to the other surface of the liquid crystal cell.Type: GrantFiled: October 8, 2010Date of Patent: April 23, 2013Assignee: Nitto Denko CorporationInventors: Satoru Koshio, Takuya Nakazono, Kazuo Kitada, Tomokazu Yura, Kentarou Takeda
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Patent number: 8421974Abstract: A pixel structure includes a first pixel electrode and a second pixel electrode. The second pixel electrode is configured around the first pixel electrode. The first pixel electrode is coupled to a first voltage and the second pixel electrode is coupled to a second voltage. The second voltage is higher than the first voltage. The area of the first pixel electrode is larger than that of the second pixel electrode.Type: GrantFiled: December 28, 2007Date of Patent: April 16, 2013Assignee: Chimei Innolux CorporationInventors: Chih Yung Hsieh, Chien Hong Chen
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Patent number: 8421970Abstract: A LCD device and a method for manufacturing the same are disclosed which have a simplified manufacturing process and decrease the fabrication time by forming a pixel electrode without using an additional photoresist pattern. The method includes forming an electrode layer on a first substrate; forming a predetermined alignment layer pattern on the electrode layer; and forming a pixel electrode pattern by patterning the electrode layer using the alignment layer pattern as a mask.Type: GrantFiled: December 15, 2006Date of Patent: April 16, 2013Assignee: LG Display Co., Ltd.Inventor: Byung Hyuck Chung
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Patent number: 8421934Abstract: The invention relates to a method for orienting an optical element (e. g. a parallax barrier screen or lenticular screen) on a screen comprising pixels x(i, j) in a raster composed of lines (i) and columns (j) in order to produce a screen for three-dimensional representation. In said method, especially a test pattern is presented which consists of various views A(k), wherein k=1, . . . , n, and n>1. The test pattern comprises at least two first straight lines that are located in different horizontal positions in the n>1 views A(k) as well as at least two second straight lines which each extend parallel to one of the first straight lines and are located in at least the same horizontal positions in the n>1 views A(k). The method according to the invention can be carried out quickly and with high accuracy and is therefore suitable for industrial use to produce screens for three-dimensional representation.Type: GrantFiled: June 2, 2008Date of Patent: April 16, 2013Assignee: VisuMotion GmbHInventors: Stephan Otte, Jens Meichsner
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Publication number: 20130088677Abstract: A liquid crystal display device includes a pair of substrates of which one substrate is provided with a plurality of scanning lines and a plurality of common wirings, a first insulation film covering the scanning lines, the common wirings, and the one substrate, a plurality of signal lines provided on the first insulation film, a thin film transistor provided near an intersection part of the scanning lines and the signal lines, a lower electrode formed below the first insulation film and connected to the common wirings, a second insulation film formed on surfaces of the thin film transistor, the signal lines, and the first insulation film, and an upper electrode formed on the second insulation film and having a slit, a display region in which the liquid crystal layer is driven by an electric field, and a non-display region that is formed outside the display region.Type: ApplicationFiled: October 7, 2011Publication date: April 11, 2013Applicant: Sony CorporationInventors: Takuo KINOSHITA, Hiroyuki ITO
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Publication number: 20130083277Abstract: An optical film, which exhibits a high, optically compensatory function and can be stably manufactured by continuous production, can be provided. The optical film comprises an optically anisotropic layer comprising discotic liquid crystal fixed into a hybrid alignment, an adhesion layer having no alignment controllability and a substrate in that order, wherein the hybrid alignment is conditioned such that an angle defined by a director of the discotic liquid crystal in a region close to an interface with air and the normal to the film is larger than an angle defined by a director of the discotic liquid crystal in the vicinity of an interface with the adhesion layer and the normal to the film, and the total thickness of the film is 0.1 ?m to 70 ?m.Type: ApplicationFiled: September 27, 2012Publication date: April 4, 2013Applicant: FUJIFILM CORPORATIONInventor: Fujifilm Corporation
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Patent number: 8411216Abstract: Each pixel region includes first and second pixel electrodes (17a, 17b) and first and second capacitor electrodes (67x, 67y) positioned on a layer where a data signal line (15) exists. The first and second capacitor electrodes are aligned in a row direction in such a manner as to overlap a retention capacitor line (18) via a first insulating film and to overlap the second pixel electrode (17b) via a second insulating film. A drain electrode (9) of a transistor (12), the first pixel electrode (17a), a first connection line (38) connected with the first capacitor electrode (67x), and the second connection line connected with the second capacitor electrode (67y) are electrically connected with one another. A part of the first connection line (38) and a part of the second connection line (39) do not overlap the retention capacitor line (18).Type: GrantFiled: July 15, 2009Date of Patent: April 2, 2013Assignee: Sharp Kabushiki KaishaInventor: Toshihide Tsubata
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Patent number: 8411244Abstract: A liquid crystal display device and a fabricating method thereof for simplifying a process are disclosed. In the method of fabricating the liquid crystal display device, a first conductive pattern group including a gate line and a gate electrode, a common line and a common electrode, a pixel electrode and a pad in a multiple conductive layer having a stepwise shape including a transparent conductive layer is formed on a substrate by a first mask process. An insulating film and a semiconductor layer including a plurality of contact holes are formed on the first mask pattern group by a second mask process. A second pattern group including a data line, a source electrode and a drain electrode is formed on the semiconductor layer and the semiconductor layer is patterned, and an active layer is exposed between the source electrode and the drain electrode by a third mask process.Type: GrantFiled: June 21, 2006Date of Patent: April 2, 2013Assignee: LG Display Co., Ltd.Inventors: Soon Sung Yoo, Oh Nam Kwon, Youn Gyoung Chang, Heung Lyul Cho, Seung Hee Nam
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Publication number: 20130077032Abstract: A liquid crystal display device, a liquid crystal panel and a method for manufacturing the same, the liquid crystal panel comprises a first substrate, a second substrate, a liquid crystal and a sealant sandwiched between the first substrate and the second substrate. A display area constituted by an arrangement of a plurality of devices and ITO areas, and a surrounding area around the display area are formed on the second substrate. Metal lines are arranged and disposed on the second substrate for electrically connecting to the devices. In addition, parts of the metal lines on the surrounding area are curved and extended, an ITO layer is formed on the parts of the metal lines on the surrounding area, and a bottom of the sealant is adhered with an upper surface of the ITO layer.Type: ApplicationFiled: October 11, 2011Publication date: March 28, 2013Inventors: Shih-Hslang Chen, Yu-Bo Gu, Dan Xiao, Liu-Yang Yang
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Publication number: 20130070194Abstract: An object of the invention is to provide a method and a system for manufacturing a liquid crystal panel, which allow more successful bonding of an optical film to a liquid crystal cell. A pressing force Fa per unit area applied when the optical film is pressed by the first roller and a pressing force Fb per unit area applied when the liquid crystal cell is pressed by the second roller satisfy the relation Fa>Fb. On the first roller side, the feed may fail to be stabilized due to the influence of tension fluctuations or vibration acting on the first optical film, so that air bubbles may occur. When the second roller side, where such an influence does not occur, contributes more to the feed of the liquid crystal cell, the liquid crystal cell can be successfully fed in the process of bonding the optical film thereto.Type: ApplicationFiled: June 22, 2011Publication date: March 21, 2013Applicant: NITTO DENKO CORPORATIONInventors: Kazuya Hada, Satoshi Hirata, Seiji Kondo
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Patent number: 8400606Abstract: In an LCD apparatus and a method of manufacturing the same, a first substrate on which a pixel electrode is formed includes a color filter formed at a pixel area thereof. A color filter spacer is formed at a position between the pixel area and an adjacent pixel area while the color filter is formed. A second substrate on which the common electrode is formed includes a light blocking pattern formed at the position between the pixel area and adjacent pixel area so as to block light incident through between the pixel area and adjacent pixel area, and a light visual angle pattern formed at the position corresponding to the pixel area so as to widen a visual angle of light incident into the pixel area. Thus, the LCD apparatus may be manufactured through simplified and reduced processes and improve display quality of an image.Type: GrantFiled: December 22, 2011Date of Patent: March 19, 2013Assignee: Samsung Display Co., Ltd.Inventor: Jang-Kun Song
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Patent number: 8395736Abstract: The present invention discloses an alignment substrate that includes a base substrate and an alignment layer arranged on the base substrate. A plurality of unit pixels is defined in the base substrate. The alignment layer includes at least two sub-alignment portions dividing the unit pixel into at least two domains. Each sub-alignment portion is arranged in a different domain of the at least two domains and is aligned to have a different pretilt direction from the other sub-alignment portions.Type: GrantFiled: November 17, 2009Date of Patent: March 12, 2013Assignee: Samsung Display Co., Ltd.Inventors: Yong-Hwan Shin, Baek-Kyun Jeon, Kyoung-Tae Kim, Bong-Sun Seo, Mee-Hye Jung, Young-Gu Kim, Min-Sik Jung, Byoung-Hun Sung, Jeong-Hye Choi, Sung-Yi Kim
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Patent number: 8390777Abstract: The primary cause of degradation of a liquid crystal is the presence of trapped water within the liquid crystal, and the properties of a degraded liquid crystal can be recovered by removing the water from the degraded liquid crystal. A method for recovering the properties of a liquid crystal is disclosed to include a step of removing the trapped water.Type: GrantFiled: September 11, 2009Date of Patent: March 5, 2013Assignee: Chung Yuan Christian UniversityInventors: Wei Lee, I-Sheng Lin
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Patent number: 8390776Abstract: A method of manufacturing a thin film transistor array substrate includes: forming a gate pattern on a substrate; forming a first gate insulating film and a second gate insulating film on the substrate; forming a source/drain pattern and a semiconductor pattern on the substrate; forming a passivation film on the substrate; forming a photo-resist pattern on the passivation film; patterning the passivation film using the photo-resist pattern to form a passivation film pattern, the patterning of the passivation film including over-etching the passivation film to form an open region in the passivation film; forming a transparent electrode film on the substrate; removing the photo-resist pattern and a portion of the transparent electrode film on the photo-resist pattern; and forming a pixel electrode on the first gate insulating layer.Type: GrantFiled: April 19, 2012Date of Patent: March 5, 2013Assignee: Samsung Display Co., Ltd.Inventors: Ki-Hun Jeong, Seung-Hwan Shim, Joo-Han Kim, Hong-Kee Chin
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Patent number: 8384873Abstract: A drill 40 for repairing a point defect in a liquid crystal device 10 in accordance with the present invention is the drill 40 for cutting the glass substrate 11 included in the liquid crystal device 10 so as to repair the point defect in the liquid crystal device 10. The drill 40 is characterized by having a point angle PA from 130 to 180 deg.Type: GrantFiled: February 1, 2008Date of Patent: February 26, 2013Assignee: Sharp Kabushiki KaishaInventor: Masaki Ikeda
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Patent number: 8379183Abstract: An embodiment of the present invention discloses a Liquid Crystal on Silicon (LCOS) display unit, in which a Metal-Insulator-Metal (MIM) capacitor consisting of a micromirror layer, a insulation layer and a light shielding layer is formed by grounding the light shielding layer on a pixel switch circuit layer. Therefore the pixel switch circuit and the capacitor are in vertical distribution, that is, the switch circuit and the capacitor both have an allowable design area of the size of one pixel. Another embodiment of the present invention provides a method for forming a Liquid Crystal on Silicon (LCOS) display unit.Type: GrantFiled: June 8, 2011Date of Patent: February 19, 2013Assignee: Semiconductor Manufacturing International (Shanghai) CorporationInventors: Herb He Huang, Xianyong Pu, Jianhong Mao, Yiqun Chen, Jing Fu, Zhongshan Hong, Yanghui Xiang
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Patent number: 8379180Abstract: A liquid crystal display (LCD) panel including a color filter on array (COA) substrate, an opposite substrate, and a liquid crystal layer is provided. The opposite substrate has a common electrode, a plurality of main spacers, a plurality of spacer stages disposed on the common electrode and protruding toward the COA substrate, and a plurality of sub-spacers disposed on the common electrode. The main spacers are disposed on the spacer stages to maintain a cell gap between the COA substrate and the opposite substrate. The liquid crystal layer is disposed between the COA substrate and the opposite substrate. The above-mentioned LCD panel is an LCD panel with hybrid spacers having the main spacers and the sub-spacers.Type: GrantFiled: June 11, 2008Date of Patent: February 19, 2013Assignee: Au Optronics CorporationInventors: Yen-Heng Huang, Chung-Kai Chen, Shu-Chin Lee
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Patent number: 8373917Abstract: An electrowetting display, a pixel array substrate thereof, and an electrowetting display pixel structure thereof are provided. The electrowetting display pixel structure is disposed on a substrate. The electrowetting display pixel structure includes a pixel electrode, a hydrophobic insulating layer and a wall. The pixel electrode is covered by the hydrophobic insulating layer. The wall is disposed on the hydrophobic insulating layer. The wall has a first side surface, a second side surface and at least one opening penetrating the first side surface and the second side surface. The opening is used for fluid medium to flow therethrough.Type: GrantFiled: December 28, 2010Date of Patent: February 12, 2013Assignee: Wintek CorporationInventors: Cheng-Yi Chen, Chih-Yuan Wang
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Patent number: 8371891Abstract: The present inventions provides a method for manufacturing a film-type display device efficiently, and a method for manufacturing a large-size film-type display device, and an apparatus for manufacturing the film-type display device. An apparatus for manufacturing a film-type display device includes: transferring means for transferring a substrate over which an integrated circuit constituting the display device is provided; first separating means for separating the integrated circuit from the substrate by adhering a first sheet material to one surface of the integrated circuit; second separating means for separating the integrated circuit from the first sheet material by adhering a second sheet material to the other surface of the integrated circuit; processing means for forming one or both of a conductive film and an insulating film on the integrated circuit; and sealing means for sealing the processed integrated circuit with the second sheet material and a third sheet material.Type: GrantFiled: September 16, 2011Date of Patent: February 12, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Osamu Nakamura, Yoshitaka Moriya
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Patent number: 8373813Abstract: An array substrate includes a substrate including a display area and a peripheral area surrounding the display area, data lines disposed in the display area and including a portion thereof extending from the display area into the peripheral area at a first side of a periphery of the display area, and a repair line disposed in the peripheral area and crossing the portion of the data lines extending into the peripheral area. The array substrate also includes a static electricity diode part electrically connected to the repair line and a first data line of the data lines.Type: GrantFiled: August 7, 2009Date of Patent: February 12, 2013Assignee: Samsung Display Co., Ltd.Inventors: Jae-Hyun Park, Jong-Hwan Lee, Kyung-Wook Kim
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Publication number: 20130033672Abstract: The present invention provides a method for cutting a panel substrate and a substrate cutting apparatus. The substrate cutting apparatus comprises a first cutting unit and a second cutting unit. The method comprises the following steps: cutting off a first residual material and a second residual material at two opposite sides of the panel substrate; cutting off a third residual material and a fourth residual material at another two opposite sides of the panel substrate; cutting the panel substrate into a plurality of elongated substrates; and cutting each of the elongated substrates into the panel units. The present invention can reduce a process time for cutting the panel substrate.Type: ApplicationFiled: September 26, 2011Publication date: February 7, 2013Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO, LTD.Inventors: Dong Li, Feng She, Cheng-ming Huang
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Patent number: 8368855Abstract: An LCD device adapted to implement a higher aperture ratio and to reduce its power consumption is disclosed. The LCD device includes: gate lines and data lines crossing each other to define pixel regions; a thin film transistor formed in each intersecting region of the gate lines and the data lines; a reflection electrode of plane shape, electrically connected to a drain electrode of the thin film transistor; a pixel electrode disposed in each of the pixel regions; and a common electrode having a slit structure, over the pixel electrode and the reflection electrode.Type: GrantFiled: October 8, 2008Date of Patent: February 5, 2013Assignee: LG Display Co. Ltd.Inventors: Ku Hyun Park, Jong Hwae Lee
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Publication number: 20130027656Abstract: An optical element includes at least two stacked birefringent layers having respective local optical axes that are rotated by respective twist angles over respective thicknesses of the at least two layers, and are aligned along respective interfaces between the at least two layers. The respective twist angles and/or the respective thicknesses are different. The at least two stacked birefringent layers may be liquid crystal polymer optical retarder layers. Related devices and fabrication methods are also discussed.Type: ApplicationFiled: October 5, 2012Publication date: January 31, 2013Inventor: North Carolina State University
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Publication number: 20130027639Abstract: A surface polymer-assisted vertically aligned (SPA-VA) liquid crystal (LC) cell has a surface alignment layer of surface localized polymer nano spikes capable of controlling the pretilt angle of liquid crystal molecules and ensuring fast switching characteristics. The deposition of the polymer nanospikes as a part of the alignment layer is achieved by polymerizing a small amount of a reactive monomer in vertically aligned liquid crystal with or without an applied voltage. Due to the alignment of liquid crystal molecules by the surface alignment layers, the polymerized polymer acts as an internal surface to modify and control the field-induced reorientation of the liquid crystal molecules. The SPA-VA LC cell realizes a stable alignment and the considerable advantage of the formation of polymer spikes via UV irradiation on both substrates of the cell. Furthermore, the switch-off of a SPA-VA is fast due to the enhanced surface anchoring strength by the surface-localized polymer nano spikes.Type: ApplicationFiled: February 15, 2011Publication date: January 31, 2013Applicant: KENT STATE UNIVERSITYInventors: Liang-Chy Chien, Volodymyr Borshch, Jeoung-Yeon Hwang
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Publication number: 20130027642Abstract: An optical film includes a base film, thin film patterns, and cholesteric liquid crystals. The thin film patterns are disposed on the base film to be spaced apart from each other and have a first property corresponding to one of a hydrophilic property and a hydrophobic property. The cholesteric liquid crystals have the first property and are disposed on the thin film patterns to transmit one of a right-circularly polarized light and a left-circularly polarized light and reflect the other one of the right-circularly polarized light and the left-circularly polarized light. A display apparatus includes a light source unit emitting a light, a display panel receiving the light and controlling a transmittance of the light to display an image, and an optical film disposed between the light source unit and the display panel.Type: ApplicationFiled: February 9, 2012Publication date: January 31, 2013Inventors: Nakcho Choi, Hae-ju Yun
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Patent number: 8357936Abstract: An array substrate for an LCD device includes a gate line crossing a data line to define a pixel region. A thin film transistor (TFT) includes a gate electrode connected to the gate line, insulating and active layers on the gate electrode, a source electrode connected to the data line, and a drain electrode spaced apart from the source electrode. An auxiliary common electrode includes a horizontal portion disposed in the pixel region. A metal layer overlaps the insulating layer and contacts the horizontal portion of the auxiliary common electrode through a contact hole defined through the insulating layer. A passivation layer is disposed on the TFT and the metal layer. A pixel electrode has a horizontal portion overlapping the metal layer with the passivation layer therebetween to form a storage capacitor, the pixel electrode connected to the drain electrode through a second contact hole defined through the passivation layer.Type: GrantFiled: August 22, 2007Date of Patent: January 22, 2013Assignee: LG Display Co., Ltd.Inventors: Il-Man Choi, Ho-June Kim
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Publication number: 20130016311Abstract: Provided is a liquid crystal display device, including: a liquid crystal display panel; a plate-shaped component having a light permeable region, the plate-shaped component being disposed so as to face a display surface of the liquid crystal display panel; a pressure sensitive adhesive layer having light permeability, which is adhered under pressure onto the display surface of the liquid crystal display panel; and an adhesive layer having light permeability, which is adhered onto a surface of the plate-shaped component facing the display surface, in which the plate-shaped component is mounted on the liquid crystal display panel through intermediation of the pressure sensitive adhesive layer and the adhesive layer.Type: ApplicationFiled: July 12, 2012Publication date: January 17, 2013Inventors: Akira ISHII, Setsuo Kobayashi, Katsuhiko Ishll, Shinji Tanabe, Kiyoshi Sento
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Patent number: 8355089Abstract: A method for fabricating a liquid crystal display device including forming an active pattern on a substrate, the active pattern including lateral surface partially having a non-planar shape, forming a gate electrode on the active pattern, the gate electrode crossing the lateral surfaces of the active pattern, forming a source electrode and a drain electrode electrically connected to predetermined regions of the active pattern, and forming a pixel electrode electrically connected to the drain electrode.Type: GrantFiled: June 28, 2006Date of Patent: January 15, 2013Assignee: LG Display Co., Ltd.Inventor: You-Jin Kim
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Patent number: 8355111Abstract: A load driving device according to the present invention is provided with: an enabling control section generating an enabling signal from an externally inputted PWM signal; and a load driving section that is turned on/off according to the enabling signal, and that PWM-drives the load according to the PWM signal.Type: GrantFiled: August 19, 2009Date of Patent: January 15, 2013Assignee: Rohm Co., Ltd.Inventor: Kunihiro Komiya
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Patent number: 8355112Abstract: Systems and methods for improving strength of thin displays, such as Liquid Crystal Display (LCD) displays, are disclosed. In one embodiment, a display can use an asymmetrical arrangement of layers (e.g., glass layers) where one layer is thicker than another layer. Different scribing techniques can also be used in singulating the different layers. The asymmetrical arrangement and/or scribing techniques can facilitate displays that are not only thin but also adequately strong to limit susceptibility to damage.Type: GrantFiled: April 30, 2012Date of Patent: January 15, 2013Assignee: Apple Inc.Inventor: Brian Bolton
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Publication number: 20130010244Abstract: Disclosed herein is a liquid crystal display having a liquid crystal display element, the liquid crystal display element including: a pair of alignment films provided on mutually facing sides of a pair of substrates; and a liquid crystal layer which is provided between the pair of alignment films and contains a liquid crystal molecule having a negative dielectric anisotropy, wherein at least one of the pair of alignment films contains a cross-linked compound obtained by cross-linking a polymer compound having a cross-linkable functional group as a side chain, the liquid crystal layer further contains a molecule which has a ring structure and a spacer linking the ring structure, and the liquid crystal molecule is given a pre-tilt by the cross-linked compound.Type: ApplicationFiled: June 20, 2012Publication date: January 10, 2013Inventors: Shunichi Suwa, Seiji Shibahara, Masashi Miyakawa, Masahiko Nakamura, Tadaaki Isozaki
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Patent number: 8350977Abstract: A display substrate includes a base substrate, a plurality of a gate line, a gate driving circuit, a starting pad and a first electrostatic dispersion portion. The gate lines are disposed at a display area of the base substrate and extend to the peripheral area. The gate driving circuit is disposed at a peripheral area of the base substrate, includes a plurality of a stage connected to the gate lines, and provides the gate lines with gate signals. The gate driving circuit is driven in response to a vertical starting signal applied to a first stage of the plurality of stages. The starting pad is disposed at the peripheral area and applies the vertical starting signal to the gate driving circuit. The first electrostatic dispersion portion is electrically connected to the starting pad. The first electrostatic dispersion portion disperses electrostatic applied to the gate driving circuit.Type: GrantFiled: October 21, 2010Date of Patent: January 8, 2013Assignee: Samsung Display Co., Ltd.Inventors: Hyung-Gi Jung, Jeong-Young Lee, Sang-Hoon Lee
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Publication number: 20130003033Abstract: The present invention is directed to an exposure apparatus and photo-mask, and method for manufacturing liquid crystal display using the same. An exposure apparatus according to an exemplary embodiment of the present invention provides an exposure apparatus which includes: a first photo-mask comprising a plurality of transmission parts; and a second photo-mask comprising a plurality of transmission parts, the first photo-mask and the second photo-mask comprising an overlapping region where the first photo-mask and the second photo-mask are partially overlapped, wherein at least one transmission part included in at least one of the first photo-mask and the second photo-mask in the overlapping region comprises a semi-transmission section, and a transmittance of the semi-transmission section is greater than or equal to 0% and less than 100%.Type: ApplicationFiled: October 31, 2011Publication date: January 3, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jun Woo LEE, Soo-Ryun CHO, Baek Kyun JEON, Joo Seok YEOM, Suk Hoon KANG, Kyoung Tae KIM
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Patent number: 8345203Abstract: A display device includes: a substrate; a plurality of pixels which are mounted on the substrate, each pixel including a pixel electrode; and switching elements which are mounted on the substrate, each switching element being connected to the pixel electrode. The substrate includes: a flexible insulation substrate; a first insulation layer which is formed over the insulation substrate and includes a plurality of insulation films which are spaced apart from each other, and the switching element is formed on any one of the respective insulation films. The display device can enhance flexibility thereof while forming relatively hard background films thereon.Type: GrantFiled: November 27, 2009Date of Patent: January 1, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tomio Yaguchi, Yasushi Nakano, Tetsuya Nagata
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Patent number: 8345194Abstract: The present invention discloses a liquid crystal lens and a manufacturing method thereof. At least one first electrode is disposed on a first substrate, a first alignment layer is disposed on the first electrode, a liquid crystal layer is disposed on the first alignment layer, a second alignment layer is disposed on the liquid crystal layer, an electric field uniformization layer is disposed on the second alignment layer, at least one second electrode and at least one third electrode are disposed on the electric field uniformization layer, and the second electrode is arranged around the third electrode. A second substrate is disposed on the second electrode and the third electrode. The third electrode which matches up with the second electrode produces an electric field gradient and the liquid crystal layer is affected uniformly by the electric field uniformization layer so as to achieve rapid focus purpose by the liquid crystal.Type: GrantFiled: September 23, 2010Date of Patent: January 1, 2013Assignee: National Chiao Tung UniversityInventors: Lin-Yao Liao, Yi-Pai Huang, Yu-Min Lin, Han-Ping D. Shieh
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Patent number: 8339566Abstract: A polarization grating includes a substrate and a first polarization grating layer on the substrate. The first polarization grating layer includes a molecular structure that is twisted according to a first twist sense over a first thickness defined between opposing faces of the first polarization grating layer. Some embodiments may include a second polarization grating layer on the first polarization grating layer. The second polarization grating layer includes a molecular structure that is twisted according to a second twist sense that is opposite the first twist sense over a second thickness defined between opposing faces of the second polarization grating layer. Also, a switchable polarization grating includes a liquid crystal layer between first and second substrates.Type: GrantFiled: April 16, 2008Date of Patent: December 25, 2012Assignee: North Carolina State UniversityInventors: Michael James Escuti, Chulwoo Oh, Ravi Komanduri
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Patent number: 8334955Abstract: Apparatus, methods, systems and devices for high aperture ratio, high transmittance, and wide viewing angle liquid crystal display having first and second substrates each with an alignment layer and polarizer on the interior and exterior surface thereof and a liquid crystal material therebetween forming plural pixels each having a common electrode group and a pixel electrode group each having at least one common and pixel electrode. A fringe field drives the molecules in the regions above and below the electrodes and a horizontal field drives the molecules between the electrode groups to achieve high transmittance. In an embodiment an insulating layer separates the substrate and alignment layer and the pixel electrodes are on the substrate and the common electrodes are on the insulating layer. In another embodiment a compensation film is layered between one of the substrates and corresponding polarizer.Type: GrantFiled: April 30, 2010Date of Patent: December 18, 2012Assignees: University of Central Florida Research Foundation, Inc., Toppoly Optoelectronics Corp.Inventors: Zhibing Ge, Xinyu Zhu, Shin-Tson Wu, Thomas Xinzhang Wu
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Patent number: 8330895Abstract: In a method for making an antiglare film including the casting, the releasing, the drying, the applying and the curing as defined herein, the transparent particles have an average primary particle size of greater than 2.5 ?m and not greater than 12 ?m, the transparent base has on at least one side thereof flat portions substantially parallel to a film-forming plane and rounded protrusions arising from the transparent particles, the protrusions having a maximum height Rt from the flat portions of from 1 to 15 ?m, and the cured layer has an average thickness of from 1 to 15.0 ?m and a surface profile with an arithmetic average roughness Ra, a mean spacing between peaks Sm, and an average slope ?a, all as measured in accordance with JIS B0601, satisfying the relationships (1) to (3) as defined herein.Type: GrantFiled: March 30, 2010Date of Patent: December 11, 2012Assignee: FUJIFILM CorporationInventors: Jun Watanabe, Hiroyuki Yoneyama, Takato Suzuki
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Patent number: 8330915Abstract: A liquid crystal display device capable of preventing the occurrence of crack in a capacitor insulating film due to laser marking is provided.Type: GrantFiled: September 21, 2009Date of Patent: December 11, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Co., Ltd.Inventors: Hiroyuki Abe, Daisuke Mutou, Takamitsu Kamada
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Patent number: 8325299Abstract: The present invention provides a manufacturing method for a liquid crystal display device, wherein the liquid crystal display device comprises first and second color filters provided on the liquid crystal side of one of a pair of substrates which are positioned so as to face each other and sandwich liquid crystal in between so as to be adjacent to each other, and a first side portion of the first color filter on the second color filter side overlaps with a second side portion of the second color filter on the first color filter side, characterized in that the border between the light blocking region and the non-light blocking region in a photomask for forming the first color filter, which corresponds to the first side portion, has a zigzag pattern with repeating mountains and valleys along this border, and the border between the light blocking region and the non-light blocking region in a photomask for forming the second color filter, which corresponds to the second side portion, has a zigzag pattern with repType: GrantFiled: April 13, 2010Date of Patent: December 4, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Toshimasa Ishigaki, Yasukazu Kimura, Jun Fujiyoshi
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Patent number: 8325316Abstract: An exemplary electro-wetting display (EWD) device (30) includes a first substrate (31), a second substrate (38), a driving circuit layer (32) provided on the second substrate, a plurality of partition walls (34), a first fluid (35) and a second fluid (36). The first and second fluids immiscible with each other are disposed between the driving circuit layer and the first substrate. The partition walls are provided on the driving circuit layer, thereby defining a plurality of pixel regions (R). Each pixel region has two short sides and two long sides. The second fluid is electro-conductive or polar and the first fluid is provided between the driving circuit layer and the second fluid. The driving circuit layer corresponding to each pixel region includes a pixel electrode (325) and a switch element (324) connected thereto. The pixel electrode is continuously disposed between the switch element and the two short sides.Type: GrantFiled: September 2, 2008Date of Patent: December 4, 2012Assignee: Chimei InnoLux CorporationInventors: Rei-Yun Lee, Jung-Lung Huang
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Patent number: 8325318Abstract: An information storage/readout device for use in a system for continuously manufacturing liquid-crystal display elements comprises an information storage medium which stores therein slitting position information created based on the position of a defect detected by an inspection of a continuous polarizing composite film included in a continuous optical film laminate including a continuous polarizing composite film formed with an adhesive layer and a continuous carrier film releasably laminated on the adhesive layer, to indicate defective-polarizing-sheet slitting positions defining a defective or defect-containing polarizing sheet, and normal-polarizing-sheet slitting positions defining a normal or defect-free polarizing sheet, in the continuous inspected optical film laminate, and a roll of the continuous inspected optical film laminate which is provided with an identification indicia.Type: GrantFiled: September 12, 2011Date of Patent: December 4, 2012Assignee: Nitto Denko CorporationInventors: Kouji Kimura, Kazuo Kitada, Tomokazu Yura, Satoru Koshio, Fumihito Shimanoe, Takuya Nakazono
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Patent number: 8325317Abstract: A method of fabricating an LCD includes providing first and second substrates. A gate electrode, a gate line, a connection electrode, a common electrode and a pixel electrode are formed on the first substrate through a first making process. A first insulation film is formed on the first substrate. A first insulation film pattern having multiple contact holes are formed through a second masking process. An active pattern is formed on the first substrate and source and drain electrodes are operationally connected with the active pattern through some of the contact holes. A gate electrode, a common electrode, and a pixel electrode may be formed substantially together through a slit exposure. An active pattern and source and drain electrodes may be formed substantially together. The number of masks needed to fabricate the display may be reduced to simplify a fabrication process and protect a channel region.Type: GrantFiled: December 21, 2010Date of Patent: December 4, 2012Assignee: LG Display Co., Ltd.Inventor: Joon-Young Yang
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Patent number: 8325293Abstract: A method for producing a light scattering film is provided and includes: casting onto a support a dope containing at least a thermoplastic resin and light transmitting particles to provide a casted film, and peeling and drying the casted film to prepare a light transmitting base material; applying an coating solution containing at least a curable compound, a polymerization initiator, and a solvent onto the light transmitting base material and drying the solvent; and curing the curable compound to form a cured layer. At least one surface of the light transmitting base material has an asperity shape, the light transmitting particles have an average primary particle size greater than 2.5 ?m but not greater than 12 ?m, the cured layer has an average thickness of 0.1 ?m or greater but not greater than 10.0 ?m, and the cured layer satisfies the specific formulae.Type: GrantFiled: March 30, 2010Date of Patent: December 4, 2012Assignee: FUJIFILM CorporationInventors: Jun Watanabe, Hiroyuki Yoneyama, Daisaku Abiru
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Publication number: 20120300147Abstract: A method of fabricating metal oxide TFTs on transparent substrates includes the steps of positioning an opaque gate metal area on the front surface of the substrate, depositing transparent gate dielectric and transparent metal oxide semiconductor layers overlying the gate metal and a surrounding area, depositing transparent passivation material on the semiconductor material, depositing photoresist on the passivation material, exposing and developing the photoresist to remove exposed portions, etching the passivation material to leave a passivation area defining a channel area, depositing transparent conductive material over the passivation area, depositing photoresist over the conductive material, exposing and developing the photoresist to remove unexposed portions, and etching the conductive material to leave source and drain areas on opposed sides of the channel area.Type: ApplicationFiled: February 6, 2012Publication date: November 29, 2012Inventors: Chan-Long Shieh, Gang Yu
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Patent number: 8319913Abstract: A resin-type light guide plate composition, a backlight unit including the light guide plate formed using the composition and a liquid crystal display including the backlight unit. The resin-type light guide plate composition includes urethane-(meth)acrylate oligomer prepared by reacting a reaction product of a compound prepared by reacting divalent polyol and divalent isocyanate with (meth)acrylate monomer including hydroxyl group, hydrogen bond type (meth)acrylate including hydroxyl group or carboxyl group, acrylic monomer having a maximum shrinkage rate of 15% or less, represented by the equation (1): Maximum shrinkage rate (%)=?2.58+3000*[number of (meth)acryl functional groups/molecular weight of acrylic monomer], and a photoinitiator.??<Equation 1> The composition can be used for a light guide plate formed by a simple curing process and having excellent adhesion with respect to a base film and adopted to an edge-lit, local dimming backlight unit having a reduced shrinkage rate.Type: GrantFiled: April 21, 2011Date of Patent: November 27, 2012Assignee: Dongwoo Fine-Chem Co., Ltd.Inventors: Sueng Mo Hong, Kee Yong Kim, Tae Wook Kim
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Patent number: 8318270Abstract: A liquid crystal display (“LCD”) panel includes a first substrate including a pixel electrode defining pixel areas, a first alignment layer disposed on the pixel electrode and a first reactive mesogen layer disposed on the first alignment layer, a second substrate including a common electrode layer disposed on an entire portion of the second substrate facing the first substrate, a second alignment layer disposed on the common electrode layer and a second reactive mesogen layer disposed on the second alignment layer, and a liquid crystal layer disposed between the first and second substrates and including a first liquid crystal compound represented by Chemical Formula 1, a second liquid crystal compound represented by Chemical Formula 2 and a third liquid crystal compound represented by Chemical Formula 3:Type: GrantFiled: August 7, 2009Date of Patent: November 27, 2012Assignee: Samsung Display Co., Ltd.Inventors: Dong-Gi Seong, Jae-Jin Lyu, Seung-Beom Park, Myeong-Ha Kye, Min-Goo Seok, Min-Hee Kim
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Patent number: 8319925Abstract: A display device comprising an array of encapsulated pixels. The encapsulating pixel includes an optical element which is altered from a first optical state to a second optical state upon when a potential difference is generated across it. The optical element is in contact with two electrodes which are connected to a pixel driver for generating the potential difference. The encapsulated pixel is hermetically sealed from the environment by a sealing layer and the driver receives power wirelessly via an inductive power transmission system.Type: GrantFiled: January 5, 2011Date of Patent: November 27, 2012Assignee: Powermat Technologies, Ltd.Inventor: Amir Ben-Shalom