With Plural Alignments On The Same Substrate Patents (Class 349/129)
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Patent number: 8310629Abstract: A liquid crystal display (LCD) device including a backlight module and an LCD panel is provided. The backlight module is used for providing light penetrating through the LCD panel disposed at one side of the backlight module. The LCD panel includes a substrate, a scan line, a first and a second data line, a first and a second switch element and a first and a second pixel electrode. The scan line and the two data lines, which are perpendicular to the scan line, are disposed on the substrate. The switch elements are respectively disposed at the intersection of the scan line and the first data line and the intersection of the scan line and the second data line. The pixel electrodes are respectively electrically connected to the switch elements. The area of the first pixel electrode is substantially less than that of the second one.Type: GrantFiled: September 14, 2009Date of Patent: November 13, 2012Assignee: Chimei Innolux CorporationInventors: Chien-Hong Chen, Chih-Yung Hsieh, Ying-Jen Chen
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Patent number: 8310637Abstract: Disclosed are a display apparatus and a method of manufacturing the same. The liquid crystal display includes a first substrate and a pixel electrode formed on the first substrate and having a plurality of branches. A plurality of alignment sections are interposed among the branches. An auxiliary liquid crystal layer having discotic liquid crystals is formed on the pixel electrode and the alignment sections. A main liquid crystal layer having a vertical alignment mode is formed on the auxiliary liquid crystal layer. A common electrode is formed on the main liquid crystal layer to apply an electric field to the main liquid crystal layer together with the pixel electrode. A second substrate is formed on the common electrode.Type: GrantFiled: March 24, 2010Date of Patent: November 13, 2012Assignee: Samsung Display Co., Ltd.Inventors: Hyun-cheol Moon, Jooseok Yeom
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Publication number: 20120281174Abstract: A liquid crystal display (LCD) panel is provided. A pixel structure of the LCD panel has an asymmetrical liquid crystal alignment. The LCD panel is divided into an array of display blocks. When the LCD panel is in a narrow viewing angle display mode, some of the display blocks are disabled or darkened so that a displayed image is interfered by the disabled or darkened display blocks when it is viewed from the side. Thereby, an anti-peep effect is achieved.Type: ApplicationFiled: June 24, 2011Publication date: November 8, 2012Applicant: AU OPTRONICS CORPORATIONInventors: Chao-Wei Yeh, Chien-Huang Liao, Wen-Hao Hsu
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Patent number: 8305534Abstract: A liquid crystal panel according to an exemplary embodiment of the present invention includes a substrate, and a pixel electrode arranged on the substrate. The pixel electrode includes a first subpixel electrode and a second subpixel electrode separated from each other, and the second subpixel electrode includes a first electrode part disposed above the first subpixel electrode and a second electrode part disposed below the first subpixel electrode and connected to the first electrode part. At least one first notch is arranged on at least one edge of the first subpixel electrode or the second subpixel electrode.Type: GrantFiled: February 21, 2012Date of Patent: November 6, 2012Assignee: Samsung Display Co., Ltd.Inventors: Mee-Hye Jung, Bong-Sung Seo, Young-Gu Kim, Ki-Won Kim, Min-Sik Jung, Byoung-Hun Sung
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Patent number: 8305535Abstract: 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: February 29, 2012Date of Patent: November 6, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
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Patent number: 8305533Abstract: The present invention provides an MVA transmissive or transflective liquid crystal display device with display qualities enhanced along with improvement in contrast. A liquid crystal display device of the present invention including: a pair of substrates; and a liquid crystal layer disposed between the pair of substrates, wherein one of the pair of substrates includes a pixel electrode having a rectangular shape when viewed from a display face side, the other substrate includes a linear-shaped dielectric protrusion overlapping with a corner portion of the pixel electrode when viewed from the display face side, and at least one of the pair of substrates includes a corner light-shielding member overlapping with a region where the linear-shaped dielectric protrusion and the corner portion of the pixel electrode overlap with each other.Type: GrantFiled: October 21, 2008Date of Patent: November 6, 2012Assignee: Sharp Kabushiki KaishaInventors: Koki Hongo, Kazuyoshi Fujioka, Katsuya Ogawa, Tomoo Furukawa, Masaaki Saitoh
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Patent number: 8305532Abstract: Saw-shaped protrusions, which are parallel to each other, are formed on the common electrode and the pixel electrode in two substrates. Protrusions in two substrates are arranged alternately and the bent portions of the saw-shaped protrusions are placed on the line transverse passing through the center of a pixel. Branches extend from the convex point of one saw-shaped protrusion toward the apex to the other saw-shaped protrusion, and another branch extend from the point where the protrusion meets the boundary of the pixel electrode toward the point where the boundary of the pixel electrode and the saw-shaped protrusion make an acute angle. A liquid crystal layer between two electrodes are divided to four regions where the directors of the liquid crystal layer have different angles when a voltage is applied to the electrodes, and then, wide viewing angle is obtained. In most regions, protrusions are formed straight and the protrusions have only obtuse angles at the bent points.Type: GrantFiled: August 13, 2007Date of Patent: November 6, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Kyeong-Hyeon Kim, Kye-Hun Lee, Seung-Beom Park, Jang-Kun Song
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Patent number: 8300189Abstract: Provided is a liquid crystal (LC) device and method thereof. The device comprises (i) a body of liquid crystal, (ii) a first layer comprising a first material, and (iii) a second layer comprising a second material; wherein the first layer is located between the body of liquid crystal and the second layer; the first layer alone aligns the liquid crystal in a first orientation; the second layer alone aligns the liquid crystal in a second orientation; and the first orientation is different from the second orientation. With optimized first layer thickness, the invention can be used in sensor applications to improve detection sensitivity, and in LCD applications with enhanced control over LC pretilt transition.Type: GrantFiled: June 26, 2009Date of Patent: October 30, 2012Assignee: Kent State UniversityInventors: Ke Zhang, Philip J. Bos, Robert J. Twieg, Na Liu
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Patent number: 8299469Abstract: According to an embodiment of the present invention, a thin film transistor array panel includes a gate line and a data line insulated from each other on an insulating substrate where the gate line and the data line cross each other to define a pixel region, a thin film transistor (TFT) disposed at an intersection of the gate line and the data line, a floating electrode where at least a portion of the floating electrode overlaps the data line, and a pixel electrode disposed at the pixel region where the pixel electrode is connected to the TFT and overlaps the at least a portion of the floating electrode.Type: GrantFiled: June 14, 2007Date of Patent: October 30, 2012Assignee: Samsung Display Co., Ltd.Inventor: Jong-woong Chang
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Patent number: 8300191Abstract: 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: April 26, 2011Date of Patent: October 30, 2012Inventor: Norio Koma
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Patent number: 8300190Abstract: Projecting sections controlling alignment directions of liquid crystal molecules are provided on at least one of an active matrix substrate and a counter substrate. When viewed from a direction perpendicular to a surface of the active matrix substrate or of the counter substrate, an outline shape of the projecting sections is constituted by continuously arranging a plurality of unit patterns each having a side in parallel with the polarization axis of the first polarizing plate and a side in parallel with the polarization axis of the second polarizing plate. This makes it possible to provide a liquid crystal panel that performs better display with high contrast by reducing a light leakage during a black display period and by ensuring a light transmittance during a gray level display period and a white display period.Type: GrantFiled: April 3, 2008Date of Patent: October 30, 2012Assignee: Sharp Kabushiki KaishaInventor: Naoshi Yamada
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Patent number: 8294860Abstract: A liquid crystal display device is provided which has a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, in which liquid crystal molecules are vertically aligned with respect to the substrates when no voltage is applied between the substrates and the liquid crystal molecules tilt in a plurality of directions to be almost parallel to the substrates by applying a voltage between the substrates. In the liquid crystal layer, when the voltage is applied, a proportion of a region where the liquid crystal molecules tilt in a direction of 0 degrees to 180 degrees is different from a proportion of a region where the liquid crystal molecules tilt in a direction of 180 degrees to 360 degrees with the angle being defined counterclockwise with the right direction on a screen being 0 degrees.Type: GrantFiled: July 1, 2011Date of Patent: October 23, 2012Assignee: Sharp Kabushiki KaishaInventors: Hidefumi Yoshida, Takashi Sasabayashi, Arihiro Takeda, Hideo Chida, Yoshio Koike, Yasutoshi Tasaka
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Publication number: 20120262656Abstract: Disclosed herein is a liquid-crystal display apparatus including: a pair of substrates facing each other to sandwich a liquid-crystal layer; signal and scan lines laid out in a matrix form to sandwich a first insulation film on one of the substrates; a lower electrode created in each area enclosed by the signal and scan lines; a second insulation film created on a surface of the lower electrode; an upper electrode on which a plurality of slits are created in parallel all over an entire surface of the second insulation film; and an oriented film created to cover surfaces of the upper electrode and the second insulation film.Type: ApplicationFiled: April 12, 2011Publication date: October 18, 2012Applicant: SONY CORPORATIONInventor: Hideki Kaneko
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Patent number: 8289488Abstract: A liquid crystal display device includes an alignment layer having an alignment direction inclined at an angle ? where 0°<?<90° with respect to an extending direction of a gate line, a pixel electrode, and a common electrode placed opposite to the pixel electrode with an insulating layer interposed therebetween. One of the pixel electrode and the common electrode has a slit for generating a fringe electric field to liquid crystals with the other of the pixel electrode and the common electrode. The slit includes a first slit lying in the alignment direction or a direction perpendicular to the alignment direction, and a plurality of second slits and a plurality of third slits respectively inclined at an angle ±? with respect to the first slit.Type: GrantFiled: June 24, 2009Date of Patent: October 16, 2012Assignee: Mitsubishi Electric CorporationInventors: Koji Yonemura, Yasuhiro Morii
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Patent number: 8284361Abstract: Provided is a method of fabricating an IPS mode LCD having improved image quality. After performing a rubbing process on an entire surface of an alignment layer in the IPS mode LCD, polarization and non-polarization irradiations are partially performed on a stepped portion around an electrode using masks. Accordingly, light leakage can be prevented and the contrast ratio can be improved. Also, the high quality of image can be obtained, thereby enhancing the reliability of products. Also, when non-polarized light is irradiated on a rubbed alignment layer, a high quality image can be obtained without any separate polarization apparatus. Consequently, the manufacturing process is simplified and manufacturing costs are reduced.Type: GrantFiled: December 21, 2005Date of Patent: October 9, 2012Assignee: LG Display Co., Ltd.Inventor: SuHyun Park
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Patent number: 8284363Abstract: A device includes a substrate including a first insulating substrate, a first electrode located on the first insulating substrate, and a second electrode located between the first insulating substrate and the first electrode via an insulating underlayer interposed between the second and the first electrode, a substrate including a second insulating substrate and a third electrode on the second insulating substrate, a liquid crystal layer which is held between the first and the third electrode and which exhibits a transition from a first state to a second state in an initializing process, and a voltage supply unit which supplies, a first voltage to the first and the second electrodes and a second voltage to the third electrode, wherein the first electrode includes a transition nucleus forming section which forms nuclei of the transition in the liquid crystal layer on the basis of the respective voltages supplied to the respective electrodes.Type: GrantFiled: September 24, 2008Date of Patent: October 9, 2012Assignees: Japan Display Central Inc., Kabushiki Kaisha ToshibaInventors: Kenji Nakao, Hirofumi Wakemoto, Tetsuya Kojima, Tetsuo Fukami, Yuko Kizu, Rei Hasegawa, Yukio Kizaki
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Patent number: 8284360Abstract: A liquid crystal display (LCD) panel and a fabricating method thereof are described. First, a first substrate and a second substrate are provided. A liquid crystal monomer layer is then formed on the surface of at least one of the first and second substrates. Next, a curing step is performed to the liquid crystal monomer layer to induce a polymerization reaction, so as to form a liquid crystal polymer layer. Thereafter, the first and second substrates are assembled and a liquid crystal layer is filled between the first and second substrates.Type: GrantFiled: February 29, 2012Date of Patent: October 9, 2012Assignees: Taiwan TFT LCD Association, Chunghwa Picture Tubes, Ltd., Au Optronics Corporation, Hannstar Display Corporation, Chi Mei Optoelectronics Corporation, Industrial Technology Research Institute, TPO Displays Corp.Inventors: Tsan-Yu Ho, Ding-Jen Chen, Hsin-Chun Chiang, Mei-Ju Lee, Bang-Hao Wu
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Patent number: 8284362Abstract: A liquid crystal display device including a liquid crystal layer sealed between a pair of substrates; an alignment layer formed on at least one of the substrates; a polymer formed of a photopolymerized material on the alignment layer; and a pixel electrode, including an electrode portion and a plurality of slits, formed on one of the substrates. The device also includes a source electrode and a Cs intermediate electrode, having the same potential as the pixel electrode, formed between the pixel electrode and one of the substrates; and a Cs bus line located between the Cs intermediate electrode and one of the substrates. The source electrode is formed along a first liquid crystal domain boundary, between the pixel electrode and one of the substrates. The liquid crystal layer contains part of a photopolymerizable monomer, which is a source material of the photopolymerized material.Type: GrantFiled: November 15, 2010Date of Patent: October 9, 2012Assignee: 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: 8279376Abstract: A liquid crystal display panel including a first substrate, a liquid crystal layer, an alignment layer, a polymer layer, scan lines, data lines, pixel structures, first capacitor bottom electrodes and second capacitor bottom electrodes, and a manufacturing method thereof are provided. Each pixel structure has a first pixel electrode and a second pixel electrode. Each first capacitor bottom electrode is disposed between the first pixel electrode and the first substrate. Each second capacitor bottom electrode disposed between the second pixel electrode and the first substrate includes a first pattern and a plurality of second patterns. The first pattern extends from a first side to an opposite second side of the second pixel electrode. The second patterns connected to the first pattern are disposed on the first side and the second side. The second pattern at least partly overlaps a region between the second pixel electrode and the data line.Type: GrantFiled: August 28, 2008Date of Patent: October 2, 2012Assignee: Au Optronics CorporationInventors: Te-Wei Chan, Chieh-Wei Chen, Cheng-Han Tsao, Chung-Yi Chiu
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Patent number: 8279385Abstract: The present invention relates to a liquid crystal display. A liquid crystal display according to exemplary embodiments of the present invention includes a substrate, and a pixel electrode formed on the substrate and including a plurality of minute branches. The pixel electrode includes a first region and a second region where a first distance and a second distance are provided according to an interval between the respective neighboring minute branches, wherein the second distance that is larger than the first distance, and a third region is provided between the first region and the second region, and the position of the third region having an interval between the neighboring minute branches is gradually changed.Type: GrantFiled: March 12, 2010Date of Patent: October 2, 2012Assignee: Samsung Display Co., Ltd.Inventors: Yoon-Jang Kim, Byoung-Sun Na, In-Ho Park, Kee-Bum Park, Yun-Jung Cho
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Patent number: 8279386Abstract: This object aims to provide a liquid crystal display panel with good in viewing angle characteristic, and capable of carrying out a high brightness display. The liquid crystal display device includes a first substrate having at least one pixel unit and at least one first orienting structure, a second substrate disposed opposite to the first substrate, and a liquid crystal layer sealed between the first and second substrates and having negative dielectric anisotropy. The pixel unit includes a pixel electrode that is located in the display area, while the first orienting structure is located outside the display area. In addition, the liquid crystal layer contains an optical rotation material, and some of the liquid crystal molecules in the liquid crystal layer are inclined toward the internal part or the external part of the pixel unit by the first orienting structure.Type: GrantFiled: August 18, 2009Date of Patent: October 2, 2012Assignee: Chimei Innolux CorporationInventors: Cheng-Chung Peng, Yuren Shen, Shih-Hung Fa, Jin-Jei Wu
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Patent number: 8274617Abstract: A display device includes a pixel electrode disposed on a first substrate, and including a first portion, a second portion and a connection portion disposed between the first portion and the second portion, a capacitor line disposed on the first substrate and between the first substrate and the connection portion, a nonsymmetrical shaped capacitor electrode disposed on the first substrate and overlapping the pixel electrode and the capacitor line, and electrically connected to the pixel electrode through contact holes, and a common electrode disposed on a second substrate and including first and second opening patterns disposed overlapping the first portion and the second portion of the pixel electrode, respectively.Type: GrantFiled: December 18, 2008Date of Patent: September 25, 2012Assignee: Samsung Electronics Co., Ltd.Inventor: Dong-Gyu Kim
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Patent number: 8269934Abstract: A liquid crystal display device and a method of manufacturing the liquid crystal device are disclosed. The liquid crystal display device includes a red subpixel, a green subpixel, a blue subpixel, and a viewing angle controlling subpixel. The red, green, and blue subpixels are driven in a TN method, and the viewing angle controlling subpixel is driven in an ECB method. Therefore, the liquid crystal display device provides flexibility in a security range to a user, and not only can be used for one person but also can be used for two or more persons to view an image of high quality without inconvenience while securing security.Type: GrantFiled: December 17, 2007Date of Patent: September 18, 2012Assignee: LG Display Co., Ltd.Inventors: Hyun Suk Jin, Hyung Seok Jang
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Patent number: 8269935Abstract: A liquid crystal display is provided. The liquid crystal display having a plurality of pixel regions includes a first substrate, a second substrate and a liquid crystal layer. The second substrate has a patterned electrode layer having a plurality of complete coverage regions and at least one slit distribution region. Each of the complete coverage regions is located in a corresponding pixel region. The liquid crystal layer is disposed between the first substrate and the second substrate. Liquid crystal molecules of the liquid crystal layer have various slanting directions, and each of the complete coverage regions is located at a slanting center of the slanting directions of the liquid crystal molecules. The slit distribution region is used for stabilizing the slanting directions of liquid crystal molecules within the liquid crystal layer.Type: GrantFiled: July 8, 2009Date of Patent: September 18, 2012Assignee: Chimei Innolux CorporationInventors: Chun-Yi Kuo, Wu-Liu Tsai, Fuh-Tsang Wu
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Patent number: 8269936Abstract: An active matrix substrate (10) included in a liquid crystal display device of the present invention is arranged such that (i) source bus lines (12) (signal wires) are disposed so that each of the source bus lines (i) partially overlaps its corresponding pixel electrodes (14) adjacent to each other along a direction in which gate bus lines (11) (scanning wires) extend and (ii) leads from a border between the pixel electrodes (14) toward a central part of each of the pixel electrodes (14), and in the meantime, the source bus lines (12) are disposed so that at least part of overlap between each of the source bus lines (12) and the pixel electrodes (14) overlaps ribs (26) (orientation-changing sections) that change orientation of liquid crystal molecules contained in a liquid crystal layer.Type: GrantFiled: September 9, 2008Date of Patent: September 18, 2012Assignee: Sharp Kabushiki KaishaInventors: Ryohki Itoh, Satoshi Horiuchi
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Publication number: 20120229739Abstract: A liquid crystal display device (100) according to the present invention includes a vertical alignment type liquid crystal layer (3); and a pair of optical alignment films (12, 22). A plurality of picture elements (R, G, B, Y) each include four liquid crystal domains (D1 through D4) in which tilt directions of liquid crystal molecules when a voltage is applied are different. The four liquid crystal domains are located in a matrix of 2 rows×2 columns. The pair of optical alignment films have such an alignment regulation force that causes an identical alignment pattern to appear in repetition in the liquid crystal layer along a first direction which is parallel to one of a row direction and a column direction, with 2n pixels (n is an integer of 1 or greater) being a minimum unit.Type: ApplicationFiled: November 16, 2010Publication date: September 13, 2012Inventors: Iichiroh Inoue, Koichi Miyachi, Hidetoshi Nakagawa, Akihiro Shohraku
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Patent number: 8264650Abstract: A liquid crystal display includes a first substrate, a second substrate and a liquid crystal layer. The first substrate has a pixel electrode having many first slits and many second slits, connected to a third slit. Each first and second slit respectively stretches along a first and a second vector with a starting point in a junction with the third slit. Liquid crystal molecules near an alignment layer of the second substrate is aligned by the alignment layer to pre-tilt. Each projection of the long-axis of at least part of the pre-tilted liquid crystal molecules on the second substrate forms a third vector with a starting point at the end of the liquid crystal molecule near the alignment layer. An included angle between the first and the third vector is ?1, and an included angle between the second and the third vector is ?2. 90°<?1<160°, and 90°<?2<160°.Type: GrantFiled: July 23, 2009Date of Patent: September 11, 2012Assignee: Chimei Innolux CorporationInventors: Chun-Jui Wang, Chien-Hong Chen, Chih-Yung Hsieh, Heng-Hsien Li, Wei-Ting Hsu
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Publication number: 20120224128Abstract: A display apparatus includes a first substrate including a first base substrate, a first pixel electrode disposed on the first base substrate, an insulating layer on the first pixel electrode, and a second pixel electrode disposed on the insulating layer and including a plurality of slits; a second substrate including a second base substrate opposite the first base substrate and on the first base substrate, and a reference electrode disposed on the second base substrate and facing the second pixel electrode; and a liquid crystal layer is disposed between the second pixel electrode and the reference electrode, the liquid crystal layer including liquid crystal molecules which are vertically aligned relative to the first and second substrates.Type: ApplicationFiled: October 19, 2011Publication date: September 6, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kwang-chul JUNG, Hyeokjin LEE, Ohjeong KWON
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Patent number: 8259269Abstract: A VA liquid crystal display device is capable of performing display under the wide environments including a bright place and a dark place, transmission display with a wide viewing angle and a high image quality, and improves the gray scale productivity in an oblique direction. An alignment control structure (projection structure) is disposed in a direction orthogonal to the slits of a common electrode (comb-like electrode), a lateral electric field is applied to a liquid crystal layer that is vertically aligned by the comb-like electrode, and the alignment of the liquid crystal is controlled to a different direction to make multi-domains in the VA liquid crystal display device. Also, the multi-domains are performed by continuously changing the pitches of the slits.Type: GrantFiled: July 28, 2006Date of Patent: September 4, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co.. Ltd.Inventors: Osamu Itou, Masaya Adachi, Shinichiro Oka
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Patent number: 8259270Abstract: A color washout reducing LCD panel including a first substrate, a second substrate and a liquid crystal layer sealed between the first and second substrates is provided. The first substrate includes several thin film transistors (TFTs) arranged in an array and several pixel electrodes each electrically connected to one TFT. Each pixel electrode has a first and a second electrode blocks. The first electrode block has several first slits, wherein a first interval of the first electrode block is perpendicular to the first slits, and a first width of the first electrode block is between any two neighboring first slits. The second electrode block has several second slits, wherein a second interval of the second electrode block is perpendicular to the second slit and not equal to the first interval, and a second width of the second electrode block is between any two neighboring second slits.Type: GrantFiled: September 9, 2009Date of Patent: September 4, 2012Assignee: Wintek CorporationInventors: Wen-Chun Wang, I-Fang Wang, Ming-Chang Yu, Yung-Cheng Chang
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Patent number: 8259274Abstract: Disclosed is a liquid crystal display device including a first substrate, a second substrate, and a liquid crystal layer interposed there between. The first substrate is provided with gate lines and data lines thereon. The gate lines and data lines cross with each other and are insulated from each other. Pixel electrodes are stacked on the gate lines and data lines. Each pixel electrode includes first and second sub-pixel electrodes spaced apart from each other and a connection electrode, which connects the first sub-pixel electrode to the second sub-pixel electrode. The second substrate is provided with a common electrode thereon. The common electrode includes a first domain divider formed on the center of the first sub-pixel electrode and a second domain divider formed on the center of the second sub-pixel electrode.Type: GrantFiled: May 12, 2009Date of Patent: September 4, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Man Kim, Myung-Koo Hur, Jong-Hwan Lee, Yong Woo Lee, Hong-Woo Lee, Jin-Suk Seo
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Patent number: 8259049Abstract: A liquid crystal display (LCD) which can provide uniform vertical and horizontal visibility while improving lateral visibility is provided. The LCD includes a first insulating substrate, first and second gate lines which are formed on the first insulating substrate, and a data line which is insulated from the first and second gate lines and intersects the first and second gate lines. The LCD also includes first and second thin film transistors (TFTs) which are formed in each pixel and are connected to the first and second gate lines, respectively, and to the data line, first sub-pixel electrodes which are connected to the first TFT, and a second sub-pixel electrode which is separated from the first sub-pixel electrodes by predetermined gaps and is connected to the second TFT.Type: GrantFiled: December 22, 2010Date of Patent: September 4, 2012Assignee: Samsung Electronics Co., Ltd.Inventor: Dong-kyu Kim
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Patent number: 8253912Abstract: A liquid crystal display (“LCD”) includes a decoupling line extending in a first direction, first and second data lines extending in a second direction perpendicular to the first direction, a pixel electrode including a first sub-pixel electrode and a second sub-pixel electrode. The pixel electrode further includes a lower domain-dividing part formed thereon. The LCD further includes a common electrode disposed opposite the pixel electrode and including an upper domain-dividing part formed thereon, and a first decoupling electrode including a slanting part and a straight part. The slanting part extends from the decoupling line and overlaps a portion of one of the lower domain-dividing part and the upper domain-dividing part, and the straight part extends from the slanting part and is formed parallel to the first data line in an area of the pixel where the first sub-pixel electrode and the first data line are adjacent to each other.Type: GrantFiled: October 1, 2008Date of Patent: August 28, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hye-Seok Na, Seung-Soo Baek, Dong-Gyu Kim
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Patent number: 8253913Abstract: A thin film transistor array panel is provided, which includes: a substrate; a plurality of first signal lines formed on the substrate; a plurality of second lines formed on the substrate, intersecting the first signal line, and including a plurality of curved portions having at least two curve points and a plurality of intermediate portions, the curved portions and the intermediate portions alternately connected; a plurality of pixel electrodes located substantially in areas defined by the first and the second signal lines; and a plurality of thin film transistors connected to the first and the second signal lines and the pixel electrodes.Type: GrantFiled: January 25, 2008Date of Patent: August 28, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Young-Mi Tak, Seung-Soo Baek, Dong-Gyu Kim
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Patent number: 8253902Abstract: A liquid crystal display device includes: a first substrate, wherein a pixel region is defined by a gate line and a data line, an electric field guide window is formed within the pixel region, and a first alignment layer is formed on the first substrate, the first alignment layer having a predetermined number of domains aligned in different directions on the pixel region; a second substrate facing the first substrate, and having a dielectric rib spaced apart by a predetermined distance from the electric field guide window, and a second alignment layer having a predetermined number of domains aligned in different directions; and a liquid crystal layer interposed between the first and the second substrates.Type: GrantFiled: November 2, 2004Date of Patent: August 28, 2012Assignee: LG Display Co., Ltd.Inventors: Kyeong Jin Kim, Do Yeon Kim
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Patent number: 8253903Abstract: A first sub-pixel area and a second sub-pixel area that are provided in each of pixel areas so as to sandwich a scanning signal line 2. A first sub-pixel is arranged to include the first sub-pixel area and a section of the counter substrate which section corresponds to the first sub-pixel, area and the second sub-pixel is arranged to include the second sub-pixel area and a section of the counter substrate which section corresponds to the second sub-pixel area. A first alignment control structure is provided in the first sub-pixel and a second alignment control structure is provided in the second sub-pixel. The first alignment control structure (L1 and S1 to S4) provided in one pixel (55x) of two adjacent pixels has a shape obtained by rotating by 180° the first alignment control structure (L11, S11 to S14) provided in the other one pixel (55y) of the two adjacent pixels.Type: GrantFiled: September 26, 2007Date of Patent: August 28, 2012Assignee: Sharp Kabushiki KaishaInventors: Kentaroh Irie, Toshihide Tsubata, Naoshi Yamada
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Patent number: 8248566Abstract: A liquid crystal display includes a first insulating substrate, and a second insulating substrate facing the first insulating substrate. Gate lines are formed on the first insulating substrate while extending in a horizontal direction. A gate insulating layer is formed on the gate lines. A semiconductor layer and data lines are formed on the gate insulating layer. The data lines extend in a vertical direction. Source electrodes are formed on the semiconductor layer while being connected to the data lines. Drain electrodes face the source electrodes. A protective layer is formed on the data lines, and pixel electrodes are formed on the protective layer such that the pixel electrodes are connected to the drain electrodes while having a plurality of slits and horizontal opening portions. A common electrode is formed on the second insulating substrate with a plurality of opening portions.Type: GrantFiled: July 1, 2010Date of Patent: August 21, 2012Assignee: Samsung Electronics Co., Ltd.Inventor: Jang-Kun Song
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LIGHT MODULATOR FOR A DISPLAY FOR DISPLAYING TWO-DIMENSIONAL AND/OR THREE-DIMENSIONAL IMAGE CONTENTS
Publication number: 20120206667Abstract: A light modulator, for a display for the presentation of two- and/or three-dimensional image contents or image sequences, includes two opposing substrates and electrodes. At least one liquid crystal layer is provided between the two substrates. An alignment means is provided on the substrate which faces the liquid crystal layer to set a predeterminable pre-tilt of the liquid crystals. The orientation of the liquid crystals can be controlled in a given range through an electric field generated by the electrodes. The alignment means is controllable and can be controlled to modify the pre-tilt of the liquid crystals. The alignment can be controlled such the orientation of the liquid crystals can be oriented outside the given range or so that the pre-tilt of the liquid crystals can be set specifically for certain positions.Type: ApplicationFiled: September 29, 2010Publication date: August 16, 2012Inventors: Bo Kroll, Norbert Leister, Stephen Reichelt, Gerald Futterer -
Patent number: 8243234Abstract: A color filter substrate has a transparent substrate; a color filter layer, disposed on the transparent substrate; an inorganic layer, disposed in a predetermined spatial relationship with the color filter layer; and a patterned conductive layer, disposed with the inorganic layer, wherein the patterned conductive layer has a plurality of slits exposing a portion of the inorganic layer.Type: GrantFiled: September 26, 2006Date of Patent: August 14, 2012Assignee: Chimei Innolux CorporationInventors: Ming-Lung Chou, Yu-Jen Chen, Hsuan-Yang Shih
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Patent number: 8243241Abstract: A liquid crystal display device including first and second substrates with a liquid crystal layer therebetween. A first electrode is formed on the first substrate, and a second electrode is formed on the second substrate. The first electrode is divided into at least two regions such that at least two domains of different liquid crystal orientation directions are defined within a single pixel. A first of the at least two regions and a second of the at least two regions are located in a diagonal manner with respect to each other, and each include a slit pattern. A polymer, formed from a polymerizable compound that has been polymerized, is formed between the first and second substrates, wherein the amount of the polymerizable compound remaining in the liquid crystal layer after the polymerization is not more than 0.05 parts by weight per 100 parts by weight of the liquid crystal layer.Type: GrantFiled: October 29, 2010Date of Patent: August 14, 2012Assignee: Sharp Kabushiki KaishaInventors: Yohei Nakanishi, Yuichi Inoue, Kazutaka Hanaoka, Hidefumi Yoshida, Yasutoshi Tasaka, Kunihiro Tashiro
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Patent number: 8243219Abstract: Each pixel of an LCD display includes a main pixel, a sub-pixel, a resistor, and a third switch. The third switch is used for controlling the charging time of the main pixel and the sub-pixel. A data signal of a main pixel of a previous pixel is utilized to pre-charge the main pixel and the sub-pixel, and then data is transmitted to the sub-pixel and the main pixel. When data transmission to the sub-pixel is ended, the data transmission path to the sub-pixel is switched off, and the data keeps being transmitted only to the main pixel. The LCD panel utilizing this method only needs to add one gate line at each of the top and bottom of the panel to realize the AMVA structure of 8-domain for the LCD panel.Type: GrantFiled: August 18, 2009Date of Patent: August 14, 2012Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Tung-Hsin Lan, Mu-Shan Liao, Tien-Yung Huang, Chia-Chun Fang
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Patent number: 8237902Abstract: The present invention relates to an array substrate of an LCD with a wide viewing angle and a method for manufacturing the same. The array substrate includes: gate lines and data lines formed on a substrate, and TFTs and pixel electrodes formed in pixel areas defined by the gate lines and the data lines, wherein at least one shaft for inducing liquid crystal to form a multi-domain structure is formed on each of the pixel electrodes. The method includes: forming a pattern containing gate lines, gate electrodes, data lines, source electrodes, drain electrodes and TFT channels on a substrate; depositing a passivation layer, opening a first via hole for connecting each of the drain electrodes to each of pixel electrodes and a second via hole for forming a shaft; and depositing a transparent conductive film, forming a pattern containing the pixel electrodes within pixel areas, and forming a shaft at the second via hole for inducing liquid crystal to form a multi-domain structure.Type: GrantFiled: September 10, 2009Date of Patent: August 7, 2012Assignee: Boe Technology Group Co., Ltd.Inventors: Xibin Shao, Haijun Yin, Junrui Zhang
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Patent number: 8236107Abstract: A system that forms an alignment layer of a liquid crystal device has an applicator that applies an alignment layer of material on a substrate, a magnetic field generator that applies a magnetic field to directionally align the alignment layer material, and a firing device to fire the directionally aligned material.Type: GrantFiled: July 9, 2007Date of Patent: August 7, 2012Assignee: LG Display Co., Ltd.Inventors: Jae-Choon Ryu, Hao-Joon Son
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Patent number: 8233124Abstract: A liquid crystal display device is disclosed, which can control a viewing angle in vertical and horizontal directions without forming a specific liquid crystal display panel, the liquid crystal display device comprising a display screen including a plurality of color pixels and liquid crystal molecules; and a viewing-angle control pixel controlling the liquid crystal molecules, an alignment direction of the liquid crystal molecules being inclined to a vertical or horizontal direction in the display screen, wherein the viewing-angle control pixel is formed independently of RGB pixels, to thereby control the viewing angle in the horizontal and vertical directions.Type: GrantFiled: December 28, 2006Date of Patent: July 31, 2012Assignee: LG Display Co., Ltd.Inventors: Nagayama Kazuyoshi, Momoi Yuichi
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Patent number: 8228473Abstract: A liquid crystal display device including first and second substrates, a liquid crystal layer, a plurality of gate bus lines and a plurality of drain bus lines. A plurality of pixel regions are defined by the gate bus lines and the drain bus lines. Pixel electrodes are divided into at least four regions such that at least four domains of different liquid crystal orientation directions are defined within the pixel regions. The first and second regions each include a micro-cutout pattern including a plurality of cutouts extending in a slanted direction with respect to an edge of the first or second region, respectively, and the cutouts of the first region and the cutouts of the second region are generally parallel to each other both within each of the regions as well as across the first and second regions.Type: GrantFiled: May 27, 2010Date of Patent: July 24, 2012Assignee: Sharp Kabushiki KaishaInventors: Manabu Sawasaki, Yuichi Inoue, Masakazu Shibasaki, Naoto Kondo, Tetsuya Fujikawa, Takashi Takagi, Tomonori Tanose, Tomoshige Oda, Akira Komorita, Katsunori Misaki, Shiro Hirota
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Patent number: 8223305Abstract: A display device includes a first substrate, a second substrate which is disposed to face the first substrate, a liquid crystal layer which is disposed between the first substrate and the second substrate, a first electrode and a second electrode which are formed on the first substrate, and a protrusion which is disposed under one of the first electrode and the second electrode, the liquid crystal layer having an isotropic state when there is no applied electric field, and an anisotropic state when an electric field is applied.Type: GrantFiled: August 5, 2008Date of Patent: July 17, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hong-jo Park, Hyeok-jin Lee, Sung-jae Yun, Hee-seop Kim
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Patent number: 8223302Abstract: A display panel includes a first substrate, a second substrate, signal lines, sub-pixels, and at least one thickness adjusting layer. The second substrate is disposed above the first substrate and has a transparent electrode layer thereon. The signal lines are disposed on the first substrate. The sub-pixels are arranged between the first and second substrates. The sub-pixels are electrically connected with the signal lines, and parts of them have at least one transparent area and at least one reflective area. The transparent area has a transparent electrode therein, and the reflective area has a reflective electrode therein, respectively. The thickness adjusting layer is disposed above the reflective electrode and located at the reflective area of the part of the sub-pixels.Type: GrantFiled: June 17, 2009Date of Patent: July 17, 2012Assignee: Au Optronics CorporationInventors: Yu-Ping Kuo, Shih-Chyuan Fan Jiang, Chih-Jen Hu
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Patent number: 8212981Abstract: A liquid crystal display device including first and second substrates with liquid crystal contained therebetween, and a plurality of picture elements located on the first substrate. Each of the picture elements is defined between a pair of gate bus lines and a pair of data bus lines. At least one of the picture elements includes a switching element connected to one of the data bus lines, a first sub picture element electrode, and a second sub picture element electrode. At least one of the first and second sub picture element electrodes has a body portion and a plurality of branches that extend from the body portion. A neighboring two of the branches are parallel with each other. The first sub picture element electrode connects to the switching element, and the second sub picture element electrode connects, via capacitive coupling, to the switching element.Type: GrantFiled: January 17, 2011Date of Patent: July 3, 2012Assignee: 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: 8212973Abstract: A liquid crystal display is provided which includes a color-filter substrate, an active matrix substrate, and a liquid crystal layer interposed between them. The active matrix substrate includes a first transparent substrate and includes a plurality of switching elements and a plurality of pixel electrodes formed on the first transparent substrate. Each switching element is electrically connected one of the pixel electrodes. The color-filter substrate defines a plurality of pixel areas. Each pixel area is suitable for corresponding to one of the pixel electrodes, includes a second transparent substrate, a first and second transparent conducting layers and a dielectric layer. The first transparent conducting layer is interposed between the second transparent substrate and the second transparent conducting layer, and the dielectric layer is interposed between the first and second transparent conducting layers. The second transparent conducting layer in each pixel area defines a hole.Type: GrantFiled: September 11, 2009Date of Patent: July 3, 2012Assignee: Wintek CorporationInventors: Wen-Chun Wang, Yung-Cheng Chang, Ming-Chang Yu
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Patent number: 8212980Abstract: An active matrix substrate is provided. The active matrix substrate includes a substrate, a plurality of scan lines disposed on the substrate, a plurality of data lines disposed on the substrate, a plurality of pixel units disposed on the substrate and a dielectric layer disposed on the substrate. The pixel units are electrically connected with the corresponding scan lines and data lines. Each pixel unit includes an active device and a pixel electrode electrically connected with the active device, such a pixel electrode includes at least a first slit. The dielectric layer covers the first slit, and the dielectric layer includes a plurality of second slits for exposing a part of each of the pixel electrodes.Type: GrantFiled: November 8, 2005Date of Patent: July 3, 2012Assignee: Au Optronics CorporationInventors: Ming-Chou Wu, Hsin-Hua Pan