Matrix Electrodes Patents (Class 349/143)
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Patent number: 8154698Abstract: A liquid crystal display device includes a first substrate, a second substrate, a first electrode and a second electrode formed on the first substrate, the second electrode being arranged at an upper layer with respect to the first electrode, a drain signal line and a gate signal line formed on the first substrate, and a liquid crystal layer driven by an electric field formed between the first electrode and the second electrode. The first electrode extends in parallel to the drain signal line and the second electrode extends at a slanted direction to the drain signal line.Type: GrantFiled: June 3, 2011Date of Patent: April 10, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
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Publication number: 20120081415Abstract: An array substrate is provided comprising a base substrate; an array of pixel electrodes formed on the base substrate; a plurality of gate lines, each of which is formed corresponding to each row of pixel electrodes; a plurality of data lines, each of which is formed corresponding to each odd number column of pixel electrodes and the next adjacent even number column of pixel electrodes; a plurality of first switching devices, each of which is connected with each odd-number-column pixel electrode, and the data lines charging the corresponding odd-number-column pixel electrodes via the corresponding first switching devices under driving control in corresponding time sequence; a plurality of second switching devices, each of which is connected with each even-number-column pixel electrode, and the data lines charging the corresponding even-number-column pixel electrodes via the corresponding second switching devices under driving control in corresponding time sequence.Type: ApplicationFiled: September 23, 2011Publication date: April 5, 2012Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Hailin XUE, Yubo XU, Cheng LI, Xiaochuan CHEN, Xin LI, Shunshun QIU
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Patent number: 8149354Abstract: Provided is a liquid crystal display device including: a substrate (13) including a polarizing layer (11) on a light-input side; a substrate (14) including a polarizing layer (12) on another side, the polarizing layers having absorption axes substantially perpendicular; a liquid crystal layer (15) in which a liquid-crystal-molecule is aligned to be substantially horizontal to the substrates. In a case where an absorption axis of the polarizing layer (11) and an optical axis of the liquid crystal layer are substantially perpendicular, the optical compensating members (17 and 18) may be provided between the polarizing layer (11) and the liquid crystal layer; the absorption axis of the polarizing layer (11) and a slow axis of the optical compensating members are substantially perpendicular; each pixel satisfies nx?ny?nz; thickness-direction retardation for pixels of one color is different from other colors; and the thickness-direction retardation for red pixels is larger than 0 nm.Type: GrantFiled: April 28, 2010Date of Patent: April 3, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Kentaro Ojima, Daisuke Kajita, Ikuo Hiyama, Masahiro Ishii, Yasushi Tomioka
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Patent number: 8144298Abstract: A liquid crystal display device and method of fabricating the device where the device can control a viewing angle in all directions without forming a white pixel. The liquid crystal display device includes a display control region that is controlled such that liquid crystal molecules are inclined and a viewing-angle control region that is controlled such that liquid crystal molecules are aligned in a horizontal or vertical direction, where a control voltage is supplied through a viewing angle control line independent of a common line for the display control region.Type: GrantFiled: March 23, 2011Date of Patent: March 27, 2012Assignee: LG Display Co., Ltd.Inventors: Nagayama Kazuyoshi, Yuichi Momoi
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Patent number: 8143116Abstract: A thin film transistor array substrate includes a gate line disposed on a substrate, the gate line comprising a gate electrode including a lower film and an upper film thicker than the lower film, a gate insulating layer formed on the gate line, a semiconductor layer formed on the gate insulating layer, an ohmic contact layer formed on the semiconductor layer, a data line electrically connected to a source electrode and a drain electrode formed on the ohmic contact layer, the lower film of the gate line is in contact with the gate insulating layer at a crossing portion of the gate line and the data line and the heights of the source electrode and the drain electrode are substantially the same as or less than a height of the semiconductor layer.Type: GrantFiled: August 4, 2011Date of Patent: March 27, 2012Assignee: Samsung Electronics Co., Ltd.Inventor: Dong-Gyu Kim
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Patent number: 8144302Abstract: A display substrate includes a first metal pattern including a gate line and a signal line, a first insulation layer formed on a substrate where the first metal pattern is formed, a first electrode formed on the first insulation layer, and a second metal pattern including a connecting electrode and a data line. The first insulation layer includes a first opening portion exposing a portion of the signal line. The first electrode corresponds to a unit pixel. The connecting electrode is connected to the first electrode and the signal line through the first opening portion.Type: GrantFiled: December 12, 2007Date of Patent: March 27, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Chun-Gi You, Se-Il Cho
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Publication number: 20120069284Abstract: The object is to make alignment of liquid crystals more uniform by reducing alignment disorder when a voltage is applied and to improve the display quality. A liquid crystal display element comprises a first electrode (122), a second electrode (141) opposed to the first electrode, and a liquid crystal layer provided between the first electrode and the second electrode and having alignment of liquid crystal in the voltage-off state being vertical alignment, wherein either one of the first electrode and the second electrode is provided with a plurality of regularly disposed L-shaped slits, and the L-shaped slits (21) are formed so that at least within an area where the first electrode and the second electrode overlap each other, the electrode provided with the slits, is divided into a plurality of rectangular sub-pixel electrodes each having connection portions at three corners for connection to adjacent sub-pixel electrodes.Type: ApplicationFiled: September 15, 2011Publication date: March 22, 2012Applicant: OPTREX CorporationInventor: Yuji SODA
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Publication number: 20120069280Abstract: A liquid crystal display device includes an array substrate including a pixel electrode which is disposed in each of pixels, a counter-substrate which is disposed to be opposed to the array substrate and includes a counter-electrode which is common to a plurality of the pixels, and a liquid crystal layer which is held between the array substrate and the counter-substrate. The pixel electrode includes a first major electrode portion having a strip shape, and the counter-electrode includes second major electrode portions each having a strip shape, the second major electrode portions being disposed in parallel to the first major electrode portion in a manner that the first major electrode portion is interposed between the second major electrode portions and that the first major electrode portion and the second major electrode portions are alternately arranged.Type: ApplicationFiled: November 23, 2011Publication date: March 22, 2012Inventor: Jin Hirosawa
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Publication number: 20120069285Abstract: A vertical alignment liquid crystal layer is sealed between a first substrate having a first electrode and a second substrate having a second electrode, each pixel region has a reflective region and a transmissive region, and a gap adjusting section is provided on one of sides of the first substrate and the second substrate which sets a thickness (gap) d of the liquid crystal layer which controls a phase difference of incident light to the liquid crystal layer so that a gap dr in the reflective region is smaller than a gap dt in the transmissive region. An alignment controller which divides alignment of the liquid crystal within a pixel region is provided in the pixel region on at least one of the sides of the first substrate and the second substrate. It is also possible to optimize by changing the gap in red, green, and blue.Type: ApplicationFiled: November 23, 2011Publication date: March 22, 2012Applicant: SANYO ELECTRIC CO., LTD.Inventors: Norio KOMA, Kazuhiro INOUE, Kazuyuki MAEDA, Masaaki AOTA, Masayuki KAMETANI
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Patent number: 8139194Abstract: In a display device of built-in driver circuit type including a non-rectangular image display area, the frame area surrounding the display area is reduced and the wiring delay is reduced. The image display device includes a plurality of pixels arranged in an orthogonal matrix form, a plurality of scanning wiring lines connected to the plural pixels, a plurality of signal wiring lines connected to the plural pixels, the signal wiring lines being disposed to construct an orthogonal matrix form with the plural scanning wiring lines; signal wiring internal circuits for driving the plural signal wiring lines, and an image display area including a plurality of pixels, the image display area having a non-rectangular outer contour. The signal wiring internal circuits are separated from each other in an extending direction of the signal wiring lines in a unit of length of the pixel.Type: GrantFiled: September 12, 2011Date of Patent: March 20, 2012Assignees: Hitachi Display, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tsunenori Yamamoto, Ken Ohara, Yoshiaki Nakayoshi, Susumu Edo, Hiroshi Saito
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Patent number: 8139191Abstract: A pixel array structure includes scan lines, data lines, first pixels, and second pixels. The scan lines and the data lines are intersected. The first and the second pixels are staggered. Each first pixel includes a first switching element, a first pixel electrode and a second pixel electrode electrically connected to the first switching element. Each second pixel includes a second switching element, a third pixel electrode and a fourth pixel electrode electrically connected to the second switching element. The first and the second switching elements electrically connect corresponding scan lines and data lines. A pattern of the first pixel electrode is symmetrical to a pattern of the fourth pixel electrode with respect to an extending direction of the scan lines. A pattern of the second pixel electrode is symmetrical to a pattern of the third pixel electrode with respect to the extending direction of the scan lines.Type: GrantFiled: January 5, 2009Date of Patent: March 20, 2012Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Kuei-Wei Huang, Chien-Kuo He
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Patent number: 8134673Abstract: The present invention realizes a bright image display by enhancing a numerical aperture of pixels. At least a portion of a pixel electrode is overlapped to a thin film transistor by way of a first insulation film, the pixel electrode is connected to an output electrode of the thin film transistor via a contact hole which is formed in the first insulation film, the counter electrode is arranged above the pixel electrode by way of a second insulation film in a state that the counter electrode is overlapped to the pixel electrode, the counter electrode is formed at a position avoiding the contact hole formed in the first insulation film as viewed in a plan view, and at least a portion of the counter electrode is overlapped to the thin film transistor.Type: GrantFiled: June 6, 2011Date of Patent: March 13, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takahiro Ochiai, Tohru Sasaki, Hirotaka Imayama, Masateru Morimoto
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Publication number: 20120057119Abstract: A touch-type liquid crystal display apparatus with a built-in contact, includes a substrate support structure supporting a first substrate and a second substrate respectively. The substrate support structure includes a pillar-shaped spacer formed on an opposing surface of the second substrate, and a base region formed on an opposing surface of the first substrate and having a front end with which a front end of the pillar-shaped spacer is in contact. A contact point protrusion is also formed on the opposing surface of the second substrate by using the same material as that of the pillar-shaped spacer.Type: ApplicationFiled: September 7, 2011Publication date: March 8, 2012Applicant: CASIO COMPUTER CO., LTD.Inventor: Kazuhiro Sasaki
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Patent number: 8130355Abstract: A liquid crystal display device includes a first substrate having a common electrode thereon; a second substrate coupled to the first substrate, the second substrate having a connection electrode facing a portion of the common electrode on the first substrate, the connection electrode including a lower electrode made of metal, an insulating layer formed over the lower electrode and having a plurality of contact holes, and an upper electrode made of oxide conductor over the insulating layer, the upper electrode being electrically connected to the lower electrode via the plurality of contact holes; and a plurality of conductive gap members disposed between said portion of the common electrode and the upper electrode of the connection electrode to electrically connect said portion of the common electrode to the upper electrode of the connection electrode.Type: GrantFiled: September 26, 2008Date of Patent: March 6, 2012Assignee: Casio Computer Co., Ltd.Inventors: Kunihiro Matsuda, Norihisa Yamada
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Patent number: 8125600Abstract: A liquid crystal display device including first and second substrates which are arranged to be opposite to each other; liquid crystal with negative dielectric anisotropy contained between the first and the second substrates; a polymer which determines directions in which liquid crystal molecules tilt when voltage is applied: and a plurality of picture elements located on the first substrate. At least one of the picture elements on the first substrate includes a switching element; a first sub picture element electrode including a plurality of band-shaped microelectrode parts and a first connecting electrode part electrically connecting the microelectrode parts of the first sub picture element electrode with one another; and a second sub picture element electrode including a plurality of band-shaped microelectrode parts and a second connecting electrode part electrically connecting the microelectrode parts of the second sub picture element electrode with one another.Type: GrantFiled: December 27, 2010Date of Patent: February 28, 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: 8125599Abstract: A thin film transistor array panel is provided, which includes: a substrate; a plurality of first signal lines formed on the substrate; a plurality of second signal lines intersecting the first signal lines to define pixel areas; first and second pixel electrodes disposed substantially in a pixel area and having different areas; a plurality of thin film transistors connected to the first and the second signal lines and at least one of the first and the second pixel electrodes; a coupling electrode overlapping the second pixel electrode; and a tilt direction defining member for determining tilt directions of liquid crystal molecules formed on the substrate.Type: GrantFiled: November 19, 2010Date of Patent: February 28, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-Seob Kim, Joon-Hak Oh, Doo-Hwan You, Young-Chol Yang
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Publication number: 20120044448Abstract: Exemplary embodiments of the present invention provide a liquid crystal display that includes a first substrate, a gate line positioned on the first substrate, a data line and a voltage line crossing the gate line, a first switching element connected to the gate line and the data line, a second switching element connected to the gate line and the voltage line, a first pixel electrode connected to the first switching element and including a plurality of branches inclined with respect to the gate line, and a second pixel electrode connected to the second switching element and including a plurality of branches parallel to the first branches, wherein the sum of the lengths of the first branches is 90% to 100% of the sum of the lengths of the second branches.Type: ApplicationFiled: May 13, 2011Publication date: February 23, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyang-Yul KIM, Dong-Gyu KIM, Joo-Nyung JANG, Sung-Woon KIM, Hwa-Sung WOO, Cheol SHIN, Dong-Chul SHIN
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Publication number: 20120038843Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes: a first substrate and an opposing second substrate; a first pixel electrode and a second pixel electrode disposed in a pixel area, on the first substrate, and including a plurality of branch electrodes; and a liquid crystal layer interposed between the first and second electrodes. Branches electrode of the first pixel electrode and the second pixel electrode are interlaced. The first pixel electrode has an extension disposed adjacent to the center of the pixel area, and a minimum distance between the extension and the adjacent branch electrode is different from an average minimum between the adjacent branch electrodes.Type: ApplicationFiled: June 8, 2011Publication date: February 16, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Mee-Hye JUNG, Doo-Hwan YOU, Young-Hoon YOO, Woo-Sung SOHN, Sung-Hoon KIM, Jae-Yong SHIN, Se-Hyoung CHO, Hye-Seok NA, Hong-Jo PARK, Hyang-Yul KIM
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Patent number: 8115878Abstract: A TFT array substrate includes a plurality of scanning lines, a plurality of data lines and a plurality of pixel regions. Each pixel region includes a pixel electrode, a first TFT, a pull alignment electrode, a second TFT, a first and second push alignment electrodes, so that when a voltage is applied to the TFT array substrate, a transverse pull electric field is formed between the pixel electrode and the pull alignment electrode, and transverse push electric fields are formed respectively between the first push alignment electrode and the pixel electrode and between the second push alignment electrode and the pixel electrode. Accordingly, liquid crystal molecules of the TFT array substrate can respond quickly and it is not necessary to configure bumps on a color filter substrate, thereby improving contrast ratio, simplifying manufacture process and reducing costs.Type: GrantFiled: April 28, 2010Date of Patent: February 14, 2012Assignee: Infovision Optoelectronics (Kunshan) Co., Ltd.Inventors: Te-Chen Chung, Xia Huang, Yanbing Qiao, Liufei Zhou, Yu-Wen Chiu
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Patent number: 8110907Abstract: A semiconductor device includes a semiconductor chip, a first substrate, and a second substrate. The first substrate includes a plurality of wires and a plurality of first electrodes, each first electrode being connected with each wire. The second substrate includes the semiconductor chip that is mounted thereon, and a plurality of second electrodes with, each second electrode being connected with the each first electrode of the first substrate. The widths of the wires of the first substrate are different depending on the lengths of the wires. By changing the widths of the wires depending on their lengths, it is possible to reduce variation in stiffness of the electrodes and vicinities of electrodes, whereby variation in ultrasonic bonding strength can be reduced.Type: GrantFiled: January 8, 2009Date of Patent: February 7, 2012Assignee: Elpida Memory, Inc.Inventors: Masahiro Yamaguchi, Emi Sawayama, Hiroshi Oyama, Shigeharu Tsunoda, Yasuo Amano, Naoki Matsushima
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Patent number: 8111366Abstract: A liquid crystal display includes; a first substrate, a plurality of pixels arranged substantially in a matrix-shape on the first substrate; a plurality of gate lines disposed on the first substrate and which transmit gate signals to the pixels, and a plurality of data lines which intersect the gate lines and which transmit data voltages to the pixels, wherein at least two adjacent gate lines are electrically connected to each other.Type: GrantFiled: November 10, 2010Date of Patent: February 7, 2012Assignee: Samsung Electronics Co., Ltd.Inventor: Dong-Gyu Kim
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Publication number: 20120026415Abstract: Disclosed is a liquid crystal panel comprising a scan signal line (16x), a data signal line (15x), and a transistor (12a) that is connected to the scan signal line (16x) and the data signal line (15x), wherein a pixel (101) is provided with pixel electrodes (17a, 17b). The pixel electrode (17a) is connected to the data signal line (15x) through the transistor (12a). The liquid crystal panel also includes a capacitance electrode (37a) which is electrically connected to the pixel electrode (17a). The capacitance electrode (37a) and the pixel electrode (17a) overlap with each other through an insulating film interposed therebetween; the capacitance electrode (37a) and the pixel electrode (17b) overlap with each other through an insulating film interposed therebetween; and the areas of the overlapping portions are equal to each other.Type: ApplicationFiled: October 30, 2009Publication date: February 2, 2012Applicant: SHARP KABUSHIKI KAISHAInventor: Toshihide Tsubata
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Patent number: 8107045Abstract: A large screen display suitable for displaying moving images has a high operational property and is realized at low cost. A vertically aligned mode liquid crystal display comprises a scan wiring, a video signal wiring, a pixel electrode, an alignment directional control electrode, and a thin film transistor element formed in a position where a scan wiring and a video signal wiring intersect with each other, and a common electrode formed in a color filter substrate side. An electric field distribution formed with three electrodes comprising an alignment directional control electrode, a pixel electrode, and a common electrode formed in an countering substrate side controls motion directions of vertically aligned anisotropic liquid crystal molecules having a negative dielectric constant.Type: GrantFiled: September 8, 2003Date of Patent: January 31, 2012Assignee: Obayashiseikou Co., Ltd.Inventor: Naoto Hirota
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Patent number: 8102492Abstract: A liquid crystal display device includes a liquid crystal layer, a common electrode, and an electrode set. The liquid crystal layer is placed between said common electrode and the electrode set, and the electrode set is provided for switching the liquid crystal layer. The electrode set includes a first electrode for switching a first area of the liquid crystal layer and a second electrode for switching a second area of the liquid crystal layer. Particularly, the second area includes at least a part of the area of the liquid crystal layer that the first area does not include. The first electrode has a shape which in cooperation with the second electrode allows alignment of the LC molecules in substantially two orthogonal directions. A method is provided to get rid of the circular polarizers which provide a good on-axis aperture ratio but which show reduced off-axis performance compared to linear polarizers.Type: GrantFiled: October 27, 2008Date of Patent: January 24, 2012Assignee: Chimei Innolux CorporationInventor: Nathalie Magali Danielle Dessaud
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Patent number: 8098357Abstract: A liquid crystal display includes: a pair of substrates which are disposed so as to be opposite each other and have a liquid crystal layer interposed therebetween; an upper electrode configured to be included in one substrate of the pair of substrates, and be formed so as to have a plurality of slits therein; and a lower electrode configured to be included in the one substrate of the pair of substrates, and be formed on an insulating film covering the upper electrode so as to be partially overlapped with the upper electrode in plan view; wherein the lower electrode has at least one slit which is formed so as to be parallel with the plurality of slits formed in the upper electrode; and wherein the at least one slit formed in the lower electrode is formed so as to be overlapped with the upper electrode in plan view.Type: GrantFiled: May 19, 2009Date of Patent: January 17, 2012Assignee: Sony CorporationInventor: Masahiro Horiguchi
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Publication number: 20120008082Abstract: An in-plane switching mode LCD having a plurality of pixels arranged in a matrix includes a gate line formed on a lower substrate, a data line formed such that the data line intersect the gate line to define a pixel region, a TFT (Thin Film Transistor) formed at the intersection of the gate line and the data line, a pixel electrode connected to the TFT, a common electrode to generate a horizontal electric field with the pixel electrode, and a common line supplying common voltage to the common electrode, wherein the common line comprises a first common line formed parallel to the gate line, a second common line formed parallel to the date line in a side portion of the pixel region adjacent to the data line, and a third common line formed parallel to the gate line and disposed between a first row and a second row of the matrix.Type: ApplicationFiled: September 22, 2011Publication date: January 12, 2012Inventors: Jae Young OH, Dong Su Shin, Jae Kyun Lee, Joon Young Yang, Kum Mi Oh
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Patent number: 8093601Abstract: In an active matrix substrate (100) of the present invention, a gate bus line (105) and a gate electrode (166) extend in the first direction (the x direction). At a contact portion (168) for electrically connecting the gate bus line (105) with the drain regions of a first-conductivity-type transistor section (162) and a second-conductivity-type transistor section (164), the direction of the straight line (L1) of the shortest distance (d1) between one of a plurality of first-conductivity-type drain connecting portions (168c) that is closest to the gate bus line (105) and the gate bus line (105) is inclined with respect to the second direction (the y direction).Type: GrantFiled: September 25, 2007Date of Patent: January 10, 2012Assignee: Sharp Kabushiki KaishaInventors: Tadayoshi Miyamoto, Mitsuhiro Tanaka
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Patent number: 8094273Abstract: A display panel and a color filter substrate thereof are provided. The display panel includes a first substrate, an alignment structure set, a second substrate, a pixel electrode, and a liquid crystal layer. The alignment structure set includes a first and a second alignment units disposed on the upper electrode. The first alignment unit is different from the second alignment unit. The pixel electrode is formed on the second substrate and includes a first electrode and a second lower electrode opposite to the first and second alignment units, respectively. A color filter may be disposed between the first substrate and the alignment structure layer to form a color filter substrate.Type: GrantFiled: December 4, 2008Date of Patent: January 10, 2012Assignee: AU Optronics CorporationInventors: Chih-Jen Hu, Meng-Chang Tsai
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Publication number: 20110317117Abstract: An array substrate for a wide viewing angle liquid crystal display device includes a gate line on a substrate, a data line crossing the gate line to define a pixel region, a thin film transistor electrically connected to the gate and data lines, a pixel electrode in the pixel region and connected to the drain electrode, the pixel electrode including two parts and an opening portion therebetween, a first common electrode in the opening portion, the first common electrode disposed on a same layer as the pixel electrode, a passivation layer on the pixel electrode and the first common electrode, the passivation layer having a common contact hole exposing the first common electrode, and a second common electrode on the passivation layer and connected to the first common electrode though the common contact hole, the second common electrode including first openings corresponding to the pixel electrode and a second opening corresponding to the opening portion.Type: ApplicationFiled: June 23, 2011Publication date: December 29, 2011Inventors: Jeong-Oh KIM, Jong-Won MOON, Jung-Il LEE
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Publication number: 20110317119Abstract: The present invention relates to a liquid crystal display including a pixel electrode including a first subpixel electrode and a second subpixel electrode spaced apart with a gap therebetween, a common electrode facing the pixel electrode, and a liquid crystal layer formed between the pixel electrode and the common electrode and including a plurality of liquid crystal molecules. The first and second subpixel electrodes include a plurality of branches, and each of the first and second subpixel electrodes includes a plurality of subregions. The branches extend in different directions in different subregions.Type: ApplicationFiled: September 12, 2011Publication date: December 29, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Mee-Hye JUNG, Ji-Won SOHN, Jae-Jin LYU, Chong-Chul CHAI
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Patent number: 8081283Abstract: A liquid crystal display panel includes a first substrate, a second substrate, a pixel disposed on the second substrate, a bottom capacitor electrode, a top capacitor electrode, a liquid crystal layer disposed between the first substrate and the second substrate, and a plurality of protrusions disposed on the first substrate. The pixel includes a first pixel electrode and a second pixel electrode, in which a main slit is formed between the first pixel electrode and the second pixel electrode. The bottom capacitor electrode is disposed on the second substrate and overlaps a portion of the main slit, and the top capacitor electrode is disposed on the second substrate and forms a capacitor with the bottom capacitor electrode.Type: GrantFiled: July 2, 2010Date of Patent: December 20, 2011Assignee: AU Optronics Corp.Inventor: Mu-Jen Su
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Publication number: 20110304809Abstract: An active matrix substrate (5) serving as a substrate for a liquid crystal panel (display panel) (2) and comprising a plurality of source wiring lines (data wiring lines) (S) and a plurality of gate wiring lines (scanning wiring lines) (G) arranged in a matrix-like configuration along with thin film transistors (switching elements) (25) provided in the vicinity of the intersections between the source wiring lines (S) and gate wiring lines (G) and pixels (P) having pixel electrodes (26) connected to the thin film transistors (25). The active matrix substrate comprises a base material (5a) provided to permit mutual intersection between the source wiring lines (S) and gate wiring lines (G), and light shielding blocks (30) that shield the edge portions (26a, 26b) of two adjacent pixel electrodes (26) from light are provided on the base material (5a).Type: ApplicationFiled: November 13, 2009Publication date: December 15, 2011Applicant: SHARP KABUSHIKI KAISHAInventors: Hijiri Nakahara, Junichi Morinaga
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Patent number: 8077285Abstract: A liquid crystal display includes an upper substrate, a lower substrate and a liquid crystal layer interposed between the upper substrate and the lower substrate. The lower substrate includes a pixel array divided into a plurality of columns of pixel areas and a plurality of rows of pixel areas. Each pixel area includes a upper sub-pixel electrode, a lower sub-pixel electrode insulated to the upper sub-pixel electrode and a TFT switch electrically connected to the lower sub-pixel electrode. The upper sub-pixel electrode is electrically connected to a lower sub-pixel electrode of a previous column, and the lower sub-pixel electrode is electrically connected to a upper sub-pixel electrode of a next column.Type: GrantFiled: February 25, 2011Date of Patent: December 13, 2011Assignee: AU Optronics CorporationInventor: Meng-Yi Hung
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Patent number: 8077265Abstract: A liquid crystal display (LCD) panel includes: a first base substrate; a plurality of gate lines and a plurality of data lines disposed on the first base substrate and crossing each other; a pixel electrode pattern disposed on the first base substrate; a storage pattern disposed on the first base substrate, the storage pattern being positioned between consecutive gate lines and substantially in parallel with the gate lines; a second base substrate; a common electrode disposed on the second base substrate and alternately positioned with the pixel electrode; and a liquid crystal layer disposed between the first and second base substrates.Type: GrantFiled: May 11, 2010Date of Patent: December 13, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Hyeok-Jin Lee, Hee-Seop Kim, Byoung-Sun Na, LuJian Gang, Hwa-Sung Woo, Ji-Hyun Kwon
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Patent number: 8077283Abstract: A display has reduced moire interference. The display has a backplane with a regular array of pixels and a frontplane with a regular array of cells. The backplane and frontplane are laminated together. The width of the distribution of aperture (the total inner cell area above an active pixel area divided by total pixel area) over the display is reduced. Sinusoidally curved walls or other curved pixel edges may be used in the frontplane or backplane to control the distribution.Type: GrantFiled: December 7, 2005Date of Patent: December 13, 2011Assignee: Creator Technology B.V.Inventors: Erik Van Veenendaal, Hjalmar Edzer Ayco Huitema, Bas Jan Emile Van Rens
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Patent number: 8077129Abstract: A pixel structure and a method for generating drive voltages in the pixel structure are disclosed. The pixel structure comprises a first sub-pixel electrode, a first com-line, and second com-line. The first sub-pixel electrode is applied with a first drive voltage. The first com-line transmits a first com-voltage signal. The second com-line transmits a second com-voltage signal. The first drive voltage is derived by combining the first com-voltage signal and the second com-voltage signal.Type: GrantFiled: May 15, 2007Date of Patent: December 13, 2011Assignee: Au Optronics Corp.Inventors: Ting-Wei Su, Jenn-Jia Su
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Publication number: 20110299022Abstract: A display panel including a first plate, a second plate, and a spacer and a display medium between the first plate and the second plate is provided. The first plate has a first substrate, a scan line and a data line on the first substrate, an active device electrically connected to the scan line and the data line, a pixel electrode electrically connected to the active device, and a first common electrode electrically insulated from the pixel electrode and alternatively arranged with the pixel electrode. The second plate has a second substrate, a second common electrode on the second substrate and disposed corresponding to the first common electrode of the first plate, and a floating electrode electrically insulated from the second common electrode and disposed corresponding to the pixel electrode of the first plate.Type: ApplicationFiled: October 22, 2010Publication date: December 8, 2011Applicant: AU OPTRONICS CORPORATIONInventors: Ming-Chun Li, Hong-Ji Huang, Seok-Lyul Lee
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Publication number: 20110299023Abstract: A liquid crystal display includes a plurality of subpixels respectively having switching elements and arranged in a matrix, a plurality of gate lines connected to the subpixels via the switching elements and transmitting a gate signal for turning on or off the switching elements, and a plurality of data lines connected to the subpixels via the switching elements and transmitting a data voltage. The respective subpixels are located in areas defined by two adjacent gate lines and two adjacent data lines, which are uniquely connected to a pair of gate line and data line, and at least one of the subpixels is connected to the different gate lines or the data line positioned at opposite side with respect to the other subpixel of the same row. In this case, a pair of subpixels adjacent above and below are connected to the gate line therebetween or the gate lines positioned at opposite side each other. In this way, any inversions for each color can be performed without changing conventional driving ICs.Type: ApplicationFiled: August 25, 2011Publication date: December 8, 2011Inventor: Baek-Woon LEE
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Publication number: 20110298783Abstract: A liquid crystal display panel includes n-number of gate lines, (m+1)-number of data lines and (m×n)-number of pixels, wherein the ‘n’ and ‘m’ are natural numbers. The gate lines are extended in a first direction. The data lines are extended in a second direction that is substantially perpendicular to the first direction. The first and last data lines are electrically connected to each other. The pixels are arranged in a matrix shape. M-number of the pixels is arranged along the first direction, and n-number of the pixels is arranged along the second direction. A pixel electrode of the pixels arranged in the second direction are electrically connected to left and right data lines alternately to enhance a display quality and reduce power consumption.Type: ApplicationFiled: August 15, 2011Publication date: December 8, 2011Inventors: Joon-Hak OH, Chong-Chul CHAI, Baek-Woon LEE
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Publication number: 20110298785Abstract: Systems and methods for preventing parasitic capacitances within liquid crystal displays are provided. A display panel according to an embodiment may include, for example, a pixel with a pixel electrode and a transistor coupled to a gate line. Additionally, the pixel may include a shielding conductor interposed between the pixel electrode and the gate line. The shielding conductor may shield the pixel electrode from a parasitic capacitance with the gate line by causing a parasitic capacitance to form between the gate line and the shielding conductor instead of between the gate line and the pixel electrode.Type: ApplicationFiled: June 2, 2010Publication date: December 8, 2011Applicant: APPLE INC.Inventors: Ahmad Al-Dahle, Wei H. Yao
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Patent number: 8072444Abstract: A light-detecting element, an analog-to-digital converter circuit, and a parallel-serial converter circuit are mounted on a substrate, using a thin film transistor, of an active matrix-type display device, and when a circuit is selected by an external chip-select signal, the luminance is adjusted by transmitting a signal of the light-detecting element, converted into digital data, to a luminance control circuit in sync with a clock signal.Type: GrantFiled: July 13, 2005Date of Patent: December 6, 2011Assignee: NEC CorporationInventors: Naoyasu Ikeda, Hiroshi Haga, Tomohiko Otose, Tatsuya Uchikawa, Daisuke Suzuki
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Patent number: 8072569Abstract: A Fringe Field Switching (“FFS”) mode liquid crystal display panel 10A includes an array substrate having first electrodes 14 each provided in a space delimited by a plurality of scan lines 12 and signal lines 17, second electrodes 21 provided on the first electrodes 14 with an insulator therebetween, and a plurality of slits 20A provided to each of the second electrodes 21 in parallel with one another in a direction crossing the signal lines 17; and a color filter substrate having a color filter layer. Each of the slits 20A has an open end 20A? on one side. The color filter layer has a centerline 30 extending along the signal lines 17 for individual pixels, and the centerline 30 coincides with a display centerline 32 that is shifted toward the open end side of the slits from a centerline 31 of each second electrode as viewed from above.Type: GrantFiled: September 13, 2007Date of Patent: December 6, 2011Assignee: Sony CorporationInventors: Hideki Kaneko, Masahiro Horiguchi
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Patent number: 8068130Abstract: An active matrix type display panel, used as a display-use panel, has pixel patterns each having aperture sections. The aperture sections are set to have a width satisfying the following inequality, 0<(minimum width of the aperture sections in the pixel)/(maximum width of the aperture sections in the pixel)?0.037, or 0.130?(minimum width of the aperture sections in the pixel)/(maximum width of the aperture sections in the pixel)<1.Type: GrantFiled: November 4, 2004Date of Patent: November 29, 2011Assignee: Sharp Kabushiki KaishaInventors: Sunao Aoki, Tatsuji Saitoh, Kenji Fujita, Toshihiro Matsumoto
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Patent number: 8068203Abstract: A liquid crystal display device includes two substrates, liquid crystal therebetween, and sub-pixel regions. Each sub-pixel region is divided into first to fourth display regions by a first axis extending orthogonal to an optical axis of a polarizing plate and a second axis extending orthogonal to the first axis. Each first to fourth display region includes slit electrodes on the second electrodes along the first axis. First slit electrodes in the first display region and second slit electrodes in the second display region are symmetric relative to the first axis. Third slit electrodes in the third display region and fourth slit electrodes in the fourth display region are symmetric relative to the first axis. The first and fourth slit electrodes are symmetric relative to the second axis. The second and third slit electrodes are symmetric relative to the second axis.Type: GrantFiled: January 30, 2009Date of Patent: November 29, 2011Assignee: Sony CorporationInventors: Shinichiro Nomura, Hideki Kaneko, Masahiro Horiguchi
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Patent number: 8068201Abstract: A vertical orientation liquid crystal display in which orientation control by oblique electric field is performed stably and lowering in light transmission rate of the liquid crystal display is suppressed without increasing the number of manufacturing steps significantly. In the vertical orientation liquid crystal display, a plurality of regions having different inclination orientations of liquid crystal molecule are formed by applying a voltage to each pixel electrode having an aperture or a recessed portion. The liquid crystal display comprises a switching element connected electrically with the pixel electrode, and an auxiliary electrode formed to overlap the aperture or the recessed portion in the pixel electrode wherein the auxiliary electrode is formed of the same film as that of the semiconductor layer in the switching element.Type: GrantFiled: November 30, 2007Date of Patent: November 29, 2011Assignee: Sharp Kabushiki KaishaInventors: Yuki Kawashima, Yasutoshi Tasaka
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Patent number: 8068200Abstract: A liquid crystal display device has an opposing substrate on which an opposing electrode is formed, a TFT substrate on which pixel electrodes arranged in matrix, thin film transistors connected to the pixel electrodes respectively, and gate lines and data lines for the thin film transistors are formed, vertical alignment films formed on the opposing inner surfaces of these substrates, and a liquid crystal layer disposed between the vertical alignment films and having negative dielectric anisotropy. Each pixel electrode has a slit formed for separating each pixel into a plurality of sub-pixels by partially eliminating the pixel electrode with a connecting portion left at which adjoining electrode portions of each pixel electrode is connected with each other. The width W1 of the pixel electrode that runs in a direction in which the slit is formed and width W2 of the connecting portion have a ratio W2/W1 of 0.13 or lower.Type: GrantFiled: December 19, 2005Date of Patent: November 29, 2011Assignee: Casio Computer Co., Ltd.Inventors: Minoru Yamaguchi, Yasushi Nakajima, Ryota Mizusako
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Patent number: 8068204Abstract: A height difference under a sealant is reduced in a case where lines are present under the sealant. There is provided a substrate having an active matrix display circuit and peripheral driving circuits, a counter substrate having a counter electrode provided on the substrate in a face-to-face relationship therewith, a sealant provided between the substrate and the counter substrate such that it surrounds the active matrix display circuit and peripheral driving circuits, a liquid crystal material provided inside the sealant, a plurality of external connection lines provided on the substrate under the sealant with a resin inter-layer film interposed therebetween for electrically connecting the active matrix display circuit and peripheral driving circuits to circuits present outside the sealant and an adjustment layer provided in the same layer as the plurality of external connection lines.Type: GrantFiled: January 20, 2011Date of Patent: November 29, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiharu Hirakata, Shunpei Yamazaki
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Publication number: 20110279735Abstract: Provided is an active matrix substrate including a capacitance electrode (47a) electrically connected to a pixel electrode (17a), in which a storage capacitance wiring (18p) is formed in the layer between the capacitance electrode (47a) and the pixel electrode (17a), the capacitance electrode (47a) and the storage capacitance wiring (18p) overlap through a first insulating film and the storage capacitance wiring (18p) and the pixel electrode (17a) overlap through a second insulating film. With this configuration, in the active matrix substrate, the storage capacitance value can be increased without lowering the aperture ratio.Type: ApplicationFiled: October 22, 2009Publication date: November 17, 2011Applicant: SHARP KABUSHIKI KAISHAInventor: Toshihide Tsubata
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Publication number: 20110279764Abstract: An active matrix substrate has a structure that prevents a drain extraction line from breaking without a plurality of active elements such as thin film transistor elements, metal-insulator-metal elements, MOS transistor elements, diodes, and varistors being disposed, and is suited for use in a large-size liquid crystal television or a like liquid crystal display device equipped with a large-size liquid crystal display panel. The active matrix substrate includes an active element connected, via a drain extraction line, to a storage capacitor upper electrode, wherein the drain extraction line has at least two routes.Type: ApplicationFiled: August 1, 2011Publication date: November 17, 2011Applicant: SHARP KABUSHIKI KAISHAInventors: Ryuji KURIHARA, Yuhko HISADA, Toshihide TSUBATA, Masanori TAKEUCHI, Tomokazu OHTSUBO
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Patent number: 8059246Abstract: To reduce an optical leakage and a disclination. In a liquid crystal display device for a gate line inversion drive, of the end portion of a pixel electrode, the portions formed along a scanning line are raised with respect to the main face of the pixel electrode. Of the end portions of a pixel electrode, the portions formed along a signal line are formed to have a height identical to that of the main face of the pixel electrode.Type: GrantFiled: June 23, 2009Date of Patent: November 15, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Rumo Satake