Matrix Electrodes Patents (Class 349/143)
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Patent number: 8988644Abstract: A liquid crystal display has its common electrode and pixel electrodes formed on a same substrate where the substrate further includes a plurality of common voltage transmitting lines disposed under both of the common electrode and the pixel electrodes and forming a ladder-like network connected to the common electrode at multiple connection locations for providing the common voltage to the common electrode by way of conduction paths having substantially lower resistivity than the common electrode, whereby an RC delay factor of transmitting the common voltage is reduced.Type: GrantFiled: March 14, 2013Date of Patent: March 24, 2015Assignee: Samsung Display Co., Ltd.Inventor: Mi Sun Lee
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Publication number: 20150070645Abstract: Provided are display device. According to an aspect of the present invention, there is provided a display device comprising a first substrate, a gate wiring which is formed on the first substrate and extends in a first direction, a data wiring which is insulated from the gate wiring, intersects the gate wiring, and extends in a second direction, and a pixel electrode which comprises a first subpixel electrode to which a first data voltage is applied from the data wiring and a second subpixel electrode to which a second data voltage lower than the first data voltage is applied from the data wiring, wherein the first subpixel electrode is surrounded by the second subpixel electrode, and the second subpixel electrode does not overlap the data wiring.Type: ApplicationFiled: April 10, 2014Publication date: March 12, 2015Applicant: Samsung Display Co., Ltd.Inventors: Sang Jin JEON, Sang Uk LIM, Mee Hye JUNG
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Patent number: 8976329Abstract: The present invention discloses an array substrate, comprising: multiple pixel units arranged in an array having rows and columns, and each of the pixel units comprises a pixel electrode, and the pixel electrode comprises at least a trunk portion corresponding to an opaque dark area; and multiple scan lines, and each of the scan lines is disposed within the vertical projection of the trunk portion for inputting a scanning signal to one of the pixel units. The present invention also discloses an LCD panel. By the above way, the present invention can improve the transmittance and the aperture ratio of the LCD panel.Type: GrantFiled: August 10, 2012Date of Patent: March 10, 2015Assignee: Shenzhen China Star Optoelectronics Technology co. Ltd.Inventors: Shih-Hsun Lo, Shyh-Feng Chen, Bing Han
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Publication number: 20150062516Abstract: A liquid crystal display includes 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: November 14, 2014Publication date: March 5, 2015Inventors: Mee-Hye JUNG, Ji-Won SOHN, Jae-Jin LYU, Chong-Chul CHAI
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Publication number: 20150062523Abstract: A TFT substrate (10) includes a substrate (10a); a TFT (11) supported by the substrate; a scanning line (12); a signal line (13); a first interlayer insulating layer (15) provided so as to cover the TFT; a pixel electrode (16) electrically connected to a drain electrode (11d) of the TFT; and a transparent storage capacitor electrode (17) provided so as to overlap at least a part of the pixel electrode. At least the first interlayer insulating layer has a contact hole (CH) formed therein through which the pixel electrode is electrically connected to the drain electrode. The scanning line includes a first area (R1) in which the scanning line is branched into two branched lines (12a). The contact hole is located between the two branched lines.Type: ApplicationFiled: March 15, 2013Publication date: March 5, 2015Inventors: Tomoo Furukawa, Kuniko Maeno, Junichi Morinaga, Masakatsu Tominaga, Katsuya Ogawa
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Publication number: 20150062522Abstract: A pixel of an LCD device includes a gate line, a data line intersecting with the gate line, a gate insulation layer between the data line and the gate line, a thin film transistor formed at an intersection of the gate line and the data line, a planarization layer, a common electrode formed on the planarization layer, a pixel electrode formed over the common electrode, and an insulation layer between the common electrode and the pixel electrode. The common electrode is formed with groove extending along a region where the data line extends. Material of the common electrode is absent from the groove to reduce capacitance between the common electrode and the data line.Type: ApplicationFiled: July 14, 2014Publication date: March 5, 2015Inventors: Jae Hyun YOU, Chul Sang SHIN
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Publication number: 20150062453Abstract: A display device includes: a first substrate; a plurality of pixel electrodes disposed on the first substrate; a common electrode including a plurality of common electrode plates disposed on the first substrate, where the common electrode plates cover the pixel electrodes and are arranged substantially in a matrix form; and a plurality of common electrode line groups which applies a common voltage to the common electrode plates, in which laterally adjacent common electrode plates of the common electrode plates are connected to different common electrode line groups.Type: ApplicationFiled: July 24, 2014Publication date: March 5, 2015Inventors: In Cheol KIM, Seung Ho NAM, Yoon Gyu LEE, IL Ho LEE, Hyun-Ju LEE
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Patent number: 8969873Abstract: A pixel structure is formed in a pixel area and coupled to a scan line and a data line. The pixel structure includes a first transistor, a second transistor and a pixel electrode. The first transistor is formed in the pixel area and coupled to the scan line and the data line. The second transistor is formed in the pixel area and coupled to the first transistor. The pixel electrode is formed in the pixel area and coupled to the second transistor. The pixel electrode includes a main portion and a first branch portion. The first branch portion is disposed between the first transistor and the second transistor. An electrophoretic display including the pixel structure is also disclosed herein.Type: GrantFiled: October 14, 2010Date of Patent: March 3, 2015Assignee: AU Optronics CorporationInventors: Sheng-Wen Huang, Chun-Hung Chu, Chih-Jen Hu
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Patent number: 8963418Abstract: Disclosed herein is a display panel based on active matrix driving having a display area made up of N pixel control lines, M video signal lines orthogonally intersecting the N pixel control lines, and pixel circuits arranged at intersections between the N pixel control lines and M video signal lines, wherein positional identification patterns are arranged on every k (k being a natural number) pixel control lines inside each of the pixel circuits.Type: GrantFiled: May 9, 2014Date of Patent: February 24, 2015Assignee: Sony CorporationInventor: Kazuo Nakamura
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Patent number: 8964157Abstract: To provide a plural-viewpoint display device having an image separating optical element such as a lenticular lens or a parallax barrier, which is capable of arranging thin film transistors and wirings while achieving substantially trapezoid apertures and high numerical aperture, and to provide a driving method thereof, a terminal device, and a display panel. A neighboring pixel pair arranged with a gate line interposed therebetween is connected to the gate line placed between the pixels, each of the pixels configuring the neighboring pixel pair is connected to the data line different from each other, and each of the neighboring pixel pairs neighboring to each other in an extending direction of the gate lines is connected to the gate line different from each other.Type: GrantFiled: March 6, 2014Date of Patent: February 24, 2015Assignee: NLT Technologies, Ltd.Inventors: Shinichi Uehara, Hidenori Ikeno, Tetsushi Satou
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Publication number: 20150049290Abstract: The TFT substrate (10) of this liquid crystal display device (100) includes: a TFT (11) which is provided for each pixel; an upper electrode (12) which is electrically connected to the TFT's drain electrode (11d); a lower electrode (13) which is arranged under the upper electrode; and a dielectric layer (14) which is arranged between the upper and lower electrodes. Its counter substrate (20) includes a counter electrode (21) which faces the upper electrode. The upper electrode has first and second regions (R1, R2) which have mutually different electrode structures, and a third region (R3) which electrically connects the first and second regions to the drain electrode. The third region of the upper electrode includes a symmetrical connecting portion (12c) that is a conductive film pattern, of which the shape is substantially symmetrical with respect to a virtual line (L1) that splits each pixel into two adjacent regions in a row direction.Type: ApplicationFiled: March 15, 2013Publication date: February 19, 2015Inventors: Seiichi Uchida, Seiji Kaneko, Yasuyuki Ogawa, Yutaka Takamaru, Kohhei Tanaka, Mitsuhiro Murata, Akira Shibazaki, Ken Kuboki
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Patent number: 8952949Abstract: Pixel electrodes (17a and 17b) are provided in a pixel (101), and the pixel (101) is associated with a data signal line (15x), scanning signal lines (16a and 16b), and transistors (12a and 12b). One pixel electrode (17a) is connected to the data signal line (15x) via the transistor (12a). The other pixel electrode (17b) is connected to the pixel electrode (17a) via a capacitor (C101) and is connected to the data signal line (15x) via the transistor (12b). Storage capacitance (Cha and Chb) is formed between the pixel electrodes (17a and 17b) of the pixel (101) and a scanning signal line (16d) associated with a pixel (100). Thus, a configuration of a liquid crystal display device of a capacitively coupled pixel division mode is proposed in which a decline in display quality caused by image sticking of a sub-pixel is less likely to occur.Type: GrantFiled: March 15, 2010Date of Patent: February 10, 2015Assignee: Sharp Kabushiki KaishaInventor: Toshihide Tsubata
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Patent number: 8953131Abstract: The touch sensor according to a preferred embodiment of the present invention includes: a transparent substrate; and an electrode formed on the transparent substrate in a mesh pattern, wherein the electrode has a line width of one side smaller than that of the other side in a thickness direction.Type: GrantFiled: March 5, 2013Date of Patent: February 10, 2015Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jang Ho Park, Jung Ryoul Yim, In Hyun Jang
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Patent number: 8952877Abstract: A display device and a driving method therefor includes a plurality of unit pixels arranged in a matrix form, a plurality of gate lines extending in a row direction and connected to the unit pixels, respectively, pluralities of first and second data lines extending in a column direction and connected to the unit pixels, respectively, a plurality of charge control lines extending in the row direction and connected to the unit pixels, respectively, a plurality of gate connection lines connected to at least two adjacent gate lines, respectively, and a plurality of charge connection lines connected to at least two adjacent charge control lines, respectively.Type: GrantFiled: June 24, 2008Date of Patent: February 10, 2015Assignee: Samsung Display Co., Ltd.Inventors: Dong Gyu Kim, Seong Young Lee, Sahng Ik Jun, Sung Jae Moon
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Patent number: 8947605Abstract: An autostereoscopic display in which image data, in the form of grey level information for red, green, and blue components of pixels in multiple images representing multiple perspective views of a scene, are recombined into a second set of images generally consisting of parts of all the original multiple perspective images, arranged within the second set of images in such a way that a 3D image is seen when the second set of images are displayed in sequence.Type: GrantFiled: May 25, 2012Date of Patent: February 3, 2015Assignee: Dimension Technologies, Inc.Inventor: Jesse B. Eichenlaub
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Patent number: 8941789Abstract: A liquid crystal display apparatus includes a plurality of pixels having first and second subpixels, a plurality of gate lines connected to the first and second subpixels to transmit gate signals, a plurality of first data lines intersecting the gate lines and connected to the first subpixels to transmit first data voltages, and a plurality of second data lines intersecting the gate lines and connected to the second subpixels to transmit second data voltages. The first and second data voltages have different sizes and are obtained from single image information. Each pixel is divided into a pair of subpixels, and different data voltages are applied to the subpixels through two different data lines, so that it is possible to secure a wide viewing angle and improve side visibility.Type: GrantFiled: January 26, 2006Date of Patent: January 27, 2015Assignee: Samsung Display Co., Ltd.Inventors: Young-Hoon Yoo, Hee-Suk Lee, Woo-Sung Sohn
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Patent number: 8941803Abstract: A liquid crystal display device of IPS mode includes an array of pixels arranged in a matrix pattern by crossing a plurality of video signal lines and a plurality of scanning signal lines each other. Each of the pixels is provided with at least a switching element. A transparent insulating film is provided on both signal lines, and a plurality of pixel electrodes, common electrodes and common lines are provided on the transparent insulating film. The common lines are formed in a grid-shaped pattern such that a first group of the common lines is made of a first conductor having lower reflectivity against optical light than that of metal while a second group of the common lines is made of a second conductor including a metal layer such that said first group and said second group are crossing each other along said video signal lines and said scanning signal lines.Type: GrantFiled: March 4, 2013Date of Patent: January 27, 2015Assignee: NLT Technologies, Ltd.Inventors: Soichi Saito, Shinya Niioka, Masayuki Jumonji, Hiroshi Tanabe, Masamichi Shimoda
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Patent number: 8941806Abstract: A liquid crystal display includes a gate line, data lines transmitting a first voltage; a transmitting line transmitting a second voltage; and pixels including first and second pixel electrodes. One pixel electrode receives the first voltage through a data line, and the other receives the second voltage through the transmitting line. Branch electrodes of the pixel electrodes alternate, and a stem of the first pixel electrode of a first pixel, faces a stem of the first pixel electrode of a second pixel and a stem of the second pixel electrode of the second pixel, with respect to the data line. Areas of the stem of the first pixel electrode of the second pixel facing the stem of the first pixel electrode of the first pixel, and of the stem of the second pixel electrode of the second pixel facing the stem of the first pixel, are the same.Type: GrantFiled: March 14, 2012Date of Patent: January 27, 2015Assignee: Samsung Display Co., Ltd.Inventors: Kwang-Chul Jung, Se Hyoung Cho
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Publication number: 20150015838Abstract: Provided is a liquid crystal display including: a first substrate; a gate line, a data line, and a common voltage line formed on the first substrate; a first passivation layer formed on the gate line, the data line, and the common voltage line; and a pixel electrode and a common electrode formed on the first passivation layer and overlapping each other with a second passivation layer therebetween, and the common electrode is connected to the common voltage line through a common contact hole, and the common contact hole is disposed for every two or more dots.Type: ApplicationFiled: June 5, 2014Publication date: January 15, 2015Inventors: Jong Woong CHANG, Dong Ho SHIN, Yun Tae LEE
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Patent number: 8928827Abstract: An embodiment of this invention provides a liquid crystal display, which comprises a thin-film transistor substrate, an upper substrate, and a liquid crystal between the two substrates. The thin-film transistor substrate comprises data lines, gate lines, and a pixel array defined by the data lines and gate lines, characterized in that each data line connects to two columns of pixel, and another one or two columns of pixel are interposed between the connected two columns of pixel.Type: GrantFiled: August 22, 2011Date of Patent: January 6, 2015Assignee: HannStar Display Corp.Inventors: Yu Tsai, Che-Yu Chuang
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Patent number: 8928845Abstract: The present invention is directed to the provision of a liquid crystal optical element that can accurately change the numerical aperture of an objective lens regardless of variations in temperature or wavelength. The liquid crystal optical element comprises a first substrate, a second substrate, a liquid crystal provided between the first and second substrates, an electrode pattern formed on one of the first and second substrates and having an aperture control region, and an opposite electrode formed on the other one of the first and second substrates, the opposite electrode being opposed to the electrode pattern for applying a voltage therebetween, wherein a plurality of electrodes, for changing refractive index and thereby causing the incident light passing through the aperture control region to diverge, are formed in the aperture control region.Type: GrantFiled: April 21, 2006Date of Patent: January 6, 2015Assignee: Citizen Holdings Co., Ltd.Inventor: Nobuyuki Hashimoto
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Patent number: 8928598Abstract: A touch-sensing liquid crystal display (LCD) panel including an active device array substrate, an opposite substrate, and a liquid crystal layer disposed therebetween is provided. The active device array substrate includes a first substrate, a pixel array, a plurality of touch-sensing pads, and an electric field shielding layer. The pixel array is disposed on the first substrate and includes a plurality of sub-pixels arranged in an array, a plurality of scan lines, and a plurality of data lines. The touch-sensing pads are disposed on the first substrate. The electric field shielding layer is disposed on the pixel array and arranged between sub-pixels adjacent to each other, and the electric field shielding layer includes a pattern. The opposite substrate includes a common electrode and a plurality of touch-sensing protrusions disposed above the touch-sensing pads. Therefore, when the touch-sensing LCD panel is pressed, press mura is substantially eliminated.Type: GrantFiled: May 28, 2010Date of Patent: January 6, 2015Assignee: Au Optronics CorporationInventors: Tsung-Chin Cheng, Hong-Ji Huang, Yue-Hung Wu, Zeng-De Chen, Seok-Lyul Lee
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Patent number: 8928847Abstract: The liquid crystal display device includes a pixel structure provided with a large wall formed along a long side of a pixel with a rectangular plane, a small wall formed at a center of the pixel and extending in the same direction as the large wall, a wall electrode formed on a wall surface of the large wall, a plane electrode formed between the small and large walls, in which the wall electrode and the plane electrode form a pixel electrode, and a common electrode formed on a surface of the small wall. The large wall has a part with an increased thickness at an end part of the pixel. The wall electrode is bent toward the center of the pixel. This structure prevents decrease of reverse twist of liquid crystal at an end part of the pixel as well as generation of domain, thus improving transmittance of the screen.Type: GrantFiled: March 8, 2013Date of Patent: January 6, 2015Assignee: Japan Display Inc.Inventors: Takato Hiratsuka, Osamu Itou, Masanao Yamamoto, Daisuke Sonoda
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Patent number: 8922730Abstract: A thin film transistor substrate includes a plurality of gate lines, a plurality of data lines, a first and a second thin film transistor being electrically connected with a first pixel and a second pixel, respectively. The first and the second pixels are located on a first and a second side with respect to one of the plurality of gate lines, respectively. The first and the second thin film transistors are located on a first and a second side with respect to one of the plurality of data lines, respectively. The one of the plurality of data lines extends substantially perpendicular to the gate line. The one of the plurality of data lines includes line portions between gate lines adjacent to each other and bent portions circumventing the first and second gate electrodes so as not to overlap with the first and second gate electrodes.Type: GrantFiled: August 28, 2012Date of Patent: December 30, 2014Assignee: Samsung Display Co., Ltd.Inventor: In-Woo Kim
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Publication number: 20140375913Abstract: A liquid crystal lens includes a plurality of first stripe-shaped electrodes, a plurality of second stripe-shaped electrodes, and a plurality of third stripe-shaped electrodes. Each first stripe-shaped electrode is disposed between any two of the second stripe-shaped electrodes that are adjacent to each other, and each second stripe-shaped electrode and each first stripe-shaped electrode are arranged along a first direction alternately. The third stripe-shaped electrodes are arranged along a second direction sequentially and interlaced with the first stripe-shaped electrodes and the second stripe-shaped electrodes. Any two of the second stripe-shaped electrodes and two opposite sides of each third stripe-shaped electrode perpendicular to the second direction define a lens region.Type: ApplicationFiled: June 25, 2014Publication date: December 25, 2014Inventors: Tai-Hsiang Jen, Yan-Yu Su, Yi-Pai Huang, Chong-Yang Fang
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Patent number: 8917371Abstract: A TFT-LCD assembly substrate comprises an array structure layer, comprising a plurality of first signal lines and a plurality of second signal lines. Adjacent first signal lines and adjacent second signal lines cross each other to define a plurality of combination pixel regions, and each of the combination pixel regions comprises two pixel regions juxtaposed along a direction of the first signal line, and there are a thin film transistor and a pixel electrode formed in one pixel region of the two pixel regions and there is a common electrode formed in the other pixel region.Type: GrantFiled: February 5, 2014Date of Patent: December 23, 2014Assignees: Beijing Boe Optoelectronics Technology Co., Ltd., Boe Technology Group Co., Ltd.Inventors: Zhenyu Xie, Xiang Liu, Xu Chen
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Publication number: 20140362322Abstract: A liquid crystal display includes a plurality of pixels including first, second and third pixels that display different colors and are sequentially disposed, a plurality of data lines including first, second and third data lines sequentially and repeatedly disposed where the first data line is disposed between the third pixel and the first pixel, the second data line is disposed between the first pixel and the second pixel, and the third data line is disposed between the second pixel and the third pixel, widths of the first, second and third data lines are substantially the same as each other, and a first interval between the first data line and the second data line is different from a second interval between the second data line and the third data line or a third interval between the third data line and the first data line.Type: ApplicationFiled: May 8, 2014Publication date: December 11, 2014Applicant: Samsung Display Co., Ltd.Inventors: Seung Hyun PARK, Hyang Yul KIM, Sung In RO, Jun Ho SONG, Jean Ho SONG, Woong Ki JEON
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Publication number: 20140362317Abstract: A display device having less defective alignment is provided. A display device having a high aperture ratio and including a capacitor which can increase charge capacity is also provided. A display device having a high aperture ratio, including a capacitor with large charge capacity, and having less defective alignment is also provided. A display device includes a pixel in a region defined by a scan line, a data line, and a capacitor line. The pixel includes a liquid crystal layer between a counter electrode and a pixel electrode, a spacer in the liquid crystal layer, and a transistor connected to the pixel electrode. The pixel electrode has a depressed portion, and alignment in the liquid crystal layer is controlled by the depressed portion and the spacer.Type: ApplicationFiled: May 29, 2014Publication date: December 11, 2014Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Daisuke KUBOTA, Yusuke KUBOTA
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Publication number: 20140354921Abstract: A display device may include a first subpixel electrode; a first roof layer; a first liquid crystal layer disposed between the first subpixel electrode and the first roof layer; and a first support member overlapping a first end portion of the first roof layer in a first direction. The display device may further include a second subpixel electrode immediately neighboring the first subpixel electrode; a second roof layer; a second liquid crystal layer disposed between the second subpixel electrode and the second roof layer; and a second support member overlapping a first end portion of the second roof layer in the first direction. The first end portion of the first roof layer and the first end portion of the second roof layer may be disposed between a second end portion of the first roof layer and a second end portion of the second roof layer.Type: ApplicationFiled: January 9, 2014Publication date: December 4, 2014Applicant: Samsung Display Co., Ltd.Inventors: Seon Uk LEE, Sung Hwan WON, Dae Ho LEE, Sun Hwa LEE, Kwang-Chul JUNG
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Patent number: 8902373Abstract: A liquid crystal display device (100) according to the present invention includes an active matrix substrate (120); a counter substrate (140); and a liquid crystal layer (160). Each of pixels (P) includes sub pixels (Spa, Spb) respectively having liquid crystal capacitances (CLa, CLb) and storage capacitances (CCa, CCb). A gate bus line (Lg) includes gate lines (Lga, Lgb) electrically connected to gates of thin film transistors (130a, 130b) and a connection line (Lgc) for electrically connecting the gate line (Lga) and the gate line (Lgb) to each other. A sub pixel electrode (124a) strides over the gate line (Lga), and a sub pixel electrode (124b) strides over the gate line (Lgb). Owing to this, change of a parasitic capacitance caused by an alignment shift between the sub pixel electrode and the gate bus line is suppressed.Type: GrantFiled: March 2, 2011Date of Patent: December 2, 2014Assignee: Sharp Kabushiki KaishaInventor: Keisuke Yoshida
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Method of detecting touch positions and touch position detection apparatus for performing the method
Patent number: 8902189Abstract: A method of detecting touch positions includes; providing an external power voltage which drives a touch panel, sequentially turning on a plurality of lower driving elements connected to the touch panel, Turning on a plurality of upper driving elements connected to the touch panel to readout at least one multi-touched position corresponding to an x-coordinate, while each of lower driving elements is turned on, receiving readout position information corresponding to an x-coordinate, turning on at least one of the upper driving elements connected to the touch panel, turning on the plurality of lower driving elements connected to the touch panel to readout the at least one multi-touched position corresponding to a y-coordinate, while each of upper driving elements is turned on, receiving readout position information corresponding to the y-coordinate, turning on a sensing element, and turning off the sensing element.Type: GrantFiled: September 29, 2009Date of Patent: December 2, 2014Assignee: Samsung Display Co., Ltd.Inventors: Se-Ki Park, Sung-Kyu Lee, Yong-Woo Lee, Byung-Duk Yang, Dong-Min Yeo -
Patent number: 8896796Abstract: A liquid crystal display panel including a first substrate, a second substrate, a liquid crystal layer and an electrode structure is provided. The liquid crystal layer is located between the first substrate and the second substrate. The electrode structure is disposed on the first substrate and comprises a first and a second sub-electrodes. The first and the second sub-electrodes are separated from each other and respectively comprises first and second branch portions. The first branch portion comprises a plurality of first branch electrodes. Two adjacent first branch electrodes are substantially parallel to each other and separated from each other by a first interval. The second branch portion comprises a plurality of second branch electrodes. Two adjacent second branch electrodes are substantially parallel to each other and separated from each other by a second interval.Type: GrantFiled: February 11, 2014Date of Patent: November 25, 2014Assignee: Innolux CorporationInventors: Chien-Hung Chen, Ching-Che Yang
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Patent number: 8896795Abstract: In one embodiment, a liquid crystal display device includes a first substrate and a second substrate. The first substrate includes a first gate line and a second gate line respectively extending in a first direction. A main pixel electrode is arranged between the first gate line and the second gate line and extending in a second direction orthogonally crossing the first direction. A pair of sub-common electrodes respectively faces the first gate line and the second gate line through an insulating layer and extends in the first direction. The second substrate includes a main common electrode electrically connected with the sub-common electrode and arranged on both sides sandwiching the main pixel electrode. A liquid crystal layer is held between the first substrate and the second substrate.Type: GrantFiled: April 18, 2012Date of Patent: November 25, 2014Assignee: Japan Display Inc.Inventors: Hirofumi Funakoshi, Jin Hirosawa
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Patent number: 8896793Abstract: In a display region, pixel electrodes are arranged with a predetermined pitch in a matrix. Dummy pixel electrodes provided in a dummy display region surrounding the display region are formed from the same layer as the pixel electrodes, and are arranged in an island shape so as to have the same size and pitch as the pixel electrodes. The dummy pixel electrodes are connected to each other via a wire positioned under the pixel electrodes.Type: GrantFiled: October 10, 2011Date of Patent: November 25, 2014Assignee: Seiko Epson CorporationInventors: Hiroyuki Hara, Tomoki Yokota
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Patent number: 8891048Abstract: A liquid crystal display (LCD) with an integrated touch screen panel includes a plurality of pixels connected to a plurality of data lines and a plurality of gate lines, the gate lines being divided into a plurality of groups, a plurality of sensing electrodes, a plurality of common electrodes divided into a plurality of groups, a common electrode driver configured to simultaneously supply a driving signal to common electrodes within each group of the plurality of groups of the common electrodes, and to sequentially supply the driving signal to the plurality of groups of the common electrodes, and a gate driver configured to sequentially supply a gate signal to gate lines within each of the plurality of group of the gate lines.Type: GrantFiled: September 21, 2011Date of Patent: November 18, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jin-Woo Park, Sang-Jin Pak, Jin-Hee Lee, Sang-Kwon Ha, Ji-Gong Lee, Hideo Yoshimura, Cheol-Min Kim, Joo-Hyung Lee
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Publication number: 20140333880Abstract: The present invention discloses a pixel structure, a TFT (Thin Film Transistor) array substrate, and a liquid crystal display panel, and the pixel structure is optimized on the base of the existing FFS (Fringe Field Switching) pixel, the IPS (In Plane Switching) and FFS structures are integrated for enhancing a lateral drive electric field of liquid crystal, the refresh rate is improved and the power consumption is reduced. The pixel structure is formed on a substrate and the pixel structure includes: a first electrode and a second electrode insulated from each other and located on different layers; and a third electrode, the first electrode and the third electrode are being on different layers and applied a same potential, wherein electric fields parallel to the substrate are respectively generated between the first electrode and the second electrode and between the third electrode and the second electrode.Type: ApplicationFiled: November 22, 2013Publication date: November 13, 2014Applicants: Tianma Micro-Electronics Co., Ltd., Shanghai AVIC Optoelectronics Co., Ltd.Inventors: Weiwei ZHANG, Jun LI, Zhou YE
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Publication number: 20140333849Abstract: An array substrate includes a plurality of pixel units, each of the pixel units includes a pixel electrode and a common electrode that are insulated from each other, and a conductive layer that is electrically connected in parallel to the common electrode. A double-layer metal layer is deposited on the common electrode at an opaque region of the pixel electrode to form a ring structure around a transparent region of the pixel electrode, thus reducing the resistances of the common electrodes. The ring structure can be U-shaped, half-ring shaped, or full-ring shaped.Type: ApplicationFiled: November 20, 2013Publication date: November 13, 2014Applicants: TIANMA MICRO-ELECTRONICS CO., LTD., SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Jun MA, QIJUN YAO, LIJUN ZHAO
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Patent number: 8885130Abstract: Embodiments may include a fringe field switching mode liquid crystal display (LCD) apparatus. The fringe field switching mode LCD apparatus includes a first substrate on which a first electrode and a second electrode are installed, the second electrode facing the first electrode and having a plurality of slits therein; a second substrate, which faces the first substrate; and a liquid crystal layer interposed between the first substrate and the second substrate, the first electrode having a protrusion at a slit end portion of the slits, the protrusion protruding toward the second electrode.Type: GrantFiled: September 23, 2011Date of Patent: November 11, 2014Assignee: Samsung Display Co., Ltd.Inventor: Mu-Kyung Jeon
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Publication number: 20140327868Abstract: A self-luminous reflective pixel structure, a display panel and a display device. The pixel structure includes a first electrode capable of reflecting light, a self-luminous layer disposed over the first electrode, a second electrode disposed over the self-luminous layer, and a reflected light control layer disposed over the second electrode. A self-luminous structure and a reflective structure can be formed in a single pixel with the pixel structure.Type: ApplicationFiled: May 7, 2013Publication date: November 6, 2014Inventor: Kun Xuan
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Patent number: 8879037Abstract: According to one embodiment, a liquid crystal display device includes a main pixel electrode having a first width in a first direction and a first edge extending in a second direction, and a sub-pixel electrode. The sub-pixel electrode has a second width, which is greater than the first width in the first direction, has a third width, which is a maximum width in the first direction at a central portion of the sub-pixel electrode, has a fourth width in the second direction at a position with a first distance from the first edge in the first direction, and has a fifth width, which is less than the fourth width at a position with a second distance, which is greater than the first distance, from the first edge in the first direction.Type: GrantFiled: January 10, 2013Date of Patent: November 4, 2014Assignee: Japan Display Inc.Inventor: Jin Hirosawa
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Patent number: 8879034Abstract: An electro-optical device includes an insulating film having a tilted face, the tilted face sloping down toward inside of an opening area of a pixel arranged in a pixel area in plan view, and a pixel electrode that is disposed in the pixel on an upper layer side relative to the insulating film and is formed so as to include at least an area that overlaps the tilted face of the insulating film in plan view.Type: GrantFiled: September 29, 2009Date of Patent: November 4, 2014Assignee: Seiko Epson CorporationInventor: Takunori Iki
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Patent number: 8879038Abstract: The present invention discloses an array substrate, a liquid crystal display device and a manufacturing method of array substrate; an array substrate comprises a plurality of thin film transistors and a first pixel electrode connected with the drain electrode of the thin film transistor, wherein the array substrate also comprises a second pixel electrode which is arranged on the bottom of the first pixel electrode and forms mutual insulation with the first pixel electrode; The present invention can increase the penetration rate of the pixel, improve the visual color cast characteristic of a panel, and reduce uneven brightness caused by variation of electrode wire width.Type: GrantFiled: December 4, 2011Date of Patent: November 4, 2014Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Chenghung Chen
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Patent number: 8873012Abstract: A liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer and an electrode structure. The second substrate is parallel to the first substrate. The liquid crystal layer is located between the first substrate and the second substrate. The electrode structure is disposed on the first substrate. The electrode structure includes a first branch portion and a second branch portion. The first branch portion includes first branch electrodes. The two adjacent first branch electrodes are parallel to each other and separated apart by a first interval. The second branch portion includes second branch electrodes. The two adjacent second branch electrodes are parallel to each other and separated apart by a second interval. Any first branch electrode corresponds to at least part of one of the second intervals. Any second branch electrode corresponds to at least part of one of the first intervals.Type: GrantFiled: May 8, 2013Date of Patent: October 28, 2014Assignee: Innolux CorporationInventors: Chien Hung Chen, Ching Che Yang
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Patent number: 8866715Abstract: Each pixel includes two pixel electrodes connected to each other via a capacitor, and in respect to a pixel (101) that belongs to the column of pixels and to the row of pixels, a transistor (12a) connected to one of the two scanning signal lines (16a, 16b) is electrically connected to one of two pixel electrodes (17a, 17b) included in the pixel (101), a transistor (12b) connected to the other one of the two scanning signal lines is electrically connected to the other one of the two pixel electrodes, and each of these transistors (12a, 12b) is electrically connected to an identical data signal line (15x) that is one of the two data signal lines (15x, 15y).Type: GrantFiled: April 15, 2010Date of Patent: October 21, 2014Assignee: Sharp Kabushiki KaishaInventor: Toshihide Tsubata
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Patent number: 8867007Abstract: 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: GrantFiled: June 27, 2013Date of Patent: October 21, 2014Assignee: Japan Display Inc.Inventor: Jin Hirosawa
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Publication number: 20140307215Abstract: Provided are a display device and a manufacturing method thereof capable of preventing deformation of a microcavity and stably injecting an aligning agent and a liquid crystal. The display device includes a substrate including a plurality of pixel areas which includes a plurality of pixel columns and is disposed in a matrix form; a thin film transistor formed on the substrate; a pixel electrode connected to the thin film transistor and formed in the pixel area; a roof layer formed on the pixel electrode so as to be spaced apart from the pixel electrode with a microcavity therebetween; a first injection hole formed in the roof layer exposing the microcavity at a side edge of the pixel column; a liquid crystal layer filling the microcavity; and an encapsulation layer formed on the roof layer so as to cover the first injection hole to seal the microcavity.Type: ApplicationFiled: October 24, 2013Publication date: October 16, 2014Inventors: Seon Uk LEE, Nam Seok ROH, Sung Hwan WON, Woo Jae LEE, Kyung Tae CHAE
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Patent number: 8860912Abstract: There is provided a liquid crystal display device capable of preventing a decrease in voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) and resolving the problem of display defects such as white spots, alignment unevenness, image sticking, and the like. The liquid crystal display device prevents a decrease in voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) and suppressing the occurrence of display defects such as image sticking and the like. The liquid crystal display device is thus useful for a VA-mode or PSVA-mode liquid crystal display device for active matrix driving. The application of the device includes liquid crystal display devices such as liquid crystal TVs, monitors, cellular phones, and smart phones.Type: GrantFiled: January 29, 2013Date of Patent: October 14, 2014Assignee: DIC CorporationInventors: Masakazu Kaneoya, Kiyofumi Takeuchi, Akira Kimura, Seiji Funakura, Katsunori Shimada
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Publication number: 20140300852Abstract: The present invention provides a liquid crystal display device which can be miniaturized while preventing display defects such as flicker. The present invention relates to a liquid crystal display device including a wiring connected to an electrode to supply a common signal. The electrode includes a first electrode portion formed in a transparent conductive layer. The wiring is formed outside a display region and includes at least one of the first wiring portion and a second wiring portion and a third wiring portion facing the at least one of the first wiring portion and the second wiring portion. The first wiring portion, the second wiring portion, and the third wiring portion are respectively formed in a first conductive layer, a second conductive layer, and a third conductive layer.Type: ApplicationFiled: November 16, 2012Publication date: October 9, 2014Inventor: Masahiro Yoshida
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Publication number: 20140300853Abstract: A display device includes: a substrate, on which pixel areas arranged substantially in a matrix form having pixel rows and pixel columns are defined; a thin film transistor disposed on the substrate; a pixel electrode disposed in the pixel areas and connected to the thin film transistor; common electrodes disposed on the pixel electrode and spaced apart from the pixel electrode, where a microcavity is defined between the pixel electrode and the common electrodes; a roof layer disposed on the common electrodes, where a liquid crystal injection hole is defined through the common electrodes and the roof layer and exposes the microcavity; a liquid crystal layer disposed in the microcavity; and an encapsulation layer disposed on the roof layer, where the encapsulation layer covers the liquid crystal injection hole and seals the microcavity, where the common electrodes in the pixel rows are connected to each other.Type: ApplicationFiled: October 7, 2013Publication date: October 9, 2014Applicant: Samsung Display Co., Ltd.Inventors: Won Tae KIM, Yong Seok KIM, Sung Hwan WON, Seon Uk LEE, Kyung Tae CHAE, Pil Sook KWON, Dae Ho LEE, Woo Jae LEE, Tae Woo LIM
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Publication number: 20140300851Abstract: A liquid crystal display includes a first substrate and a second substrate opposed to each other with a liquid crystal layer between the first substrate and the second substrate. The first substrate has a plurality of drain signal lines and a plurality of gate signal lines, and a plurality of pixel regions are defined by the drain signal lines and the gate signal lines. Each of the pixel regions includes a first electrode having a plurality of strip-like portions extending in an extension direction of the drain signal lines, the strip-like portions having at least one bent portion so that extension directions of each two parts of the strip-like portions separated by the at least one bent portion are different from each other, and a second electrode formed between the first substrate and the first electrode, and being overlapped with the strip-like portions in plan view.Type: ApplicationFiled: June 20, 2014Publication date: October 9, 2014Inventors: Kikuo Ono, Makoto Yoneya, Tsunenori ` Yamamoto, Junichi Hirakata, Yoshiaki Nakayoshi