Transistor Patents (Class 349/42)
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Patent number: 9310654Abstract: A liquid crystal device is provided which includes: a first substrate and a second substrate that are disposed to face each other; a liquid crystal layer that is sandwiched between the first substrate and the second substrate; a first electrode that is provided on the liquid crystal layer side of the first substrate; an insulating layer that is provided on the liquid crystal layer side of the first electrode; and a second electrode that is provided on the liquid crystal layer side of the insulating layer, in which the first substrate has formed thereon a plurality of data lines and a plurality of scan lines which intersect each other; sub-pixels are formed at regions surrounded by the data lines and the scan lines; the second electrode has a plurality of linear electrodes that is disposed with a gap therebetween; each of the plurality of linear electrodes extends in a long-axis direction of the sub-pixels and has at least one bent portion; the bent portion has such a shape that both sides thereof are inclinedType: GrantFiled: November 20, 2014Date of Patent: April 12, 2016Assignee: Japan Display Inc.Inventors: Takao Atarashiya, Hayato Kurasawa
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Patent number: 9304351Abstract: A display device includes: a substrate which includes a plurality of pixel areas disposed in a matrix configuration; a pixel electrode positioned in each of the pixel areas; a roof layer positioned on the pixel electrode and spaced apart from the pixel electrode with a microcavity therebetween; injection holes respectively positioned at two edges of the microcavity; a support positioned at one edge of the microcavity and adjacent to one of the injection holes; an alignment layer positioned on an inner surface of the microcavity; and a liquid crystal layer positioned in the microcavity. The support is disposed at each of opposite edges of two microcavities which are adjacent to each other in a column direction.Type: GrantFiled: September 11, 2014Date of Patent: April 5, 2016Assignee: Samsung Display Co., Ltd.Inventors: Ha-Young Park, Si Kwang Kim, Se Hee Han
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Patent number: 9305982Abstract: The present disclosure provides a liquid crystal panel, including: a first substrate and a second substrate opposite to the first substrate; a first optical spacer formed on one side of the first substrate facing the second substrate; a pad formed on one side of the second substrate facing the first substrate and corresponding to the first optical spacer; a TFT formed on the side of the second substrate facing the first substrate, being provided with a plurality of scanning lines and a plurality of data lines vertically intersecting with the scanning lines; and a second optical spacer and a third optical spacer formed on the side of the first substrate facing the second substrate, with the second optical spacer corresponding to two sides of the TFT along a direction of the scanning line.Type: GrantFiled: January 14, 2014Date of Patent: April 5, 2016Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Qibiao Lv
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Patent number: 9293475Abstract: A display device includes a substrate including a first region and a second region, a gate line and a data line on the substrate, a thin film transistor on the substrate, being connected to the gate line and the data line, and a pixel electrode connected to the thin film transistor, wherein the second region has a second contact hole of which an area is larger than that of a first contact hole of the first region.Type: GrantFiled: June 26, 2014Date of Patent: March 22, 2016Assignee: Samsung Display Co., Ltd.Inventors: Seung-Bo Shim, Dong-Hyun Yu, Jin-Ho Ju
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Patent number: 9275875Abstract: An object is to provide a semiconductor device including an oxide semiconductor, which has stable electrical characteristics and high reliability. In a manufacturing process of a bottom-gate transistor including an oxide semiconductor layer, heat treatment in an atmosphere containing oxygen and heat treatment in vacuum are sequentially performed for dehydration or dehydrogenation of the oxide semiconductor layer. In addition, irradiation with light having a short wavelength is performed concurrently with the heat treatment, whereby elimination of hydrogen, OH, or the like is promoted. A transistor including an oxide semiconductor layer on which dehydration or dehydrogenation treatment is performed through such heat treatment has improved stability, so that variation in electrical characteristics of the transistor due to light irradiation or a bias-temperature stress (BT) test is suppressed.Type: GrantFiled: October 31, 2014Date of Patent: March 1, 2016Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTDInventors: Shunpei Yamazaki, Ryosuke Watanabe, Suzunosuke Hiraishi, Junichiro Sakata
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Patent number: 9274390Abstract: A liquid crystal display device includes first and second substrates facing into each other, a gate line and a data line on an inner surface of the first substrate, the gate line and the data line defining a pixel region, a thin film transistor connected to the gate line and the data line, a pixel electrode connected to the thin film transistor and disposed at the pixel region, a color filter layer disposed closer than the pixel electrode from the first substrate, the color filter layer corresponding to the pixel electrode, a black matrix over the thin film transistor, a common electrode on an inner surface of the second substrate, and a liquid crystal layer interposed between the pixel electrode and the common electrode.Type: GrantFiled: July 25, 2002Date of Patent: March 1, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Youn-Gyoung Chang, Woong-Kwon Kim
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Patent number: 9269740Abstract: A thin film transistor array substrate for a digital photo-detector is provided. The thin film transistor array substrate includes a plurality of gate lines to supply a scan signal; a plurality of data lines to output data, the data lines arranged in a direction crossing the gate lines, wherein cell regions are defined by the gate lines and the data lines; a photodiode in each of the cell regions to perform photoelectric conversion; and a thin film transistor at each intersection between the gate lines and the data lines to turn on according to the scan signal of the gate lines and output the photoelectric conversion signal from the photodiode to the data lines. A contact area between a source electrode of the thin film transistor and a first electrode of the photodiode is at a portion outside an area covered by a photodiode region.Type: GrantFiled: November 26, 2013Date of Patent: February 23, 2016Assignee: LG Display Co., Ltd.Inventors: Dae-Kyu Kim, Sung-Il Park, Sung-Bong Ha
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Patent number: 9262020Abstract: A touch-sensitive display includes a substrate, pixel electrodes disposed on the substrate, scanning electrodes interspersed with the pixel electrodes, sense electrodes spaced from the scanning electrodes, and a display material disposed between the scanning electrodes and the sense electrodes.Type: GrantFiled: January 27, 2012Date of Patent: February 16, 2016Assignee: BlackBerry LimitedInventor: Jackson Chi Sun Lai
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Patent number: 9257565Abstract: A display panel manufacturing method includes forming a gate electrode on a substrate and a gate insulator, a semiconductor layer, and an etch stop layer covering the gate electrode. A photoresist layer covering on the etch stop layer is pattern from two opposite side of the substrate by two photolithography processes to form a photoresist pattern. The etch stop layer is dry etched to form an etch stop pattern via the photoresist pattern. The photoresist pattern is formed again by two photolithography processes. The semiconductor layer is wet etched to form a semiconductor pattern via the photoresist pattern. A source electrode and a drain electrode is formed corresponding to two opposite sides of the gate electrode to orderly cover the etch pattern, the semiconductor pattern, and the gate insulator.Type: GrantFiled: July 25, 2014Date of Patent: February 9, 2016Assignee: Ye Xin Technology Consulting Co., Ltd.Inventor: Po-Li Shih
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Patent number: 9250449Abstract: A three-dimensional stereo display, and a system and method are provided for controlling the three-dimensional stereo display. The three-dimensional stereo display includes backlight, a first polarizer, a first liquid crystal panel, a second polarizer and a second liquid crystal panel which are sequentially arranged on the backlight source. The second liquid crystal panel switches the polarizing angle of the light travelling through and exiting from said second liquid crystal panel between a horizontal and vertical polarization. Due to the polarization direction of light could be changed by the liquid crystal panel, and makes the light for the left-eye image and the right-eye image are mutual perpendicular. The polarization direction of the light for the left-eye image is the same as that of the left lens, and the polarization direction of the light for the right-eye image is the same as that of the right lens.Type: GrantFiled: April 11, 2011Date of Patent: February 2, 2016Assignee: NVIDIA CorporationInventor: Shuang Xu
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Patent number: 9240153Abstract: A liquid crystal device having a first substrate, a second substrate, and liquid crystal provided between the first substrate and the second substrate includes: a plurality of scanning lines provided in the first substrate; a plurality of data lines provided in the first substrate; a plurality of switching elements provided in correspondence with intersections of the plurality of scanning lines and the plurality of data lines; a plurality of pixel electrodes connected to the plurality of switching elements; a common electrode provided in correspondence with the pixel electrodes; a control circuit that alternately supplies a first voltage and a second voltage higher than the first voltage to the common electrode; and a data line driving circuit that alternately supplies a positive-polarity image signal, of which an electric potential is higher than the first voltage, and a negative-polarity image signal, of which an electric potential is lower than the second voltage, to the plurality of data lines.Type: GrantFiled: June 18, 2007Date of Patent: January 19, 2016Assignee: Japan Display Inc.Inventor: Shin Fujita
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Patent number: 9235095Abstract: In an active matrix type liquid crystal display device, in which functional circuits such as a shift register circuit and a buffer circuit are incorporated on the same substrate, an optimal TFT structure is provided along with the aperture ratio of a pixel matrix circuit is increased. There is a structure in which an n-channel TFT, with a third impurity region which overlaps a gate electrode, is formed in a buffer circuit, etc., and an n-channel TFT, in which a fourth impurity region which does not overlap the gate electrode, is formed in a pixel matrix circuit. A storage capacitor formed in the pixel matrix circuit is formed by a light shielding film, a dielectric film formed on the light shielding film, and a pixel electrode. Al is especially used in the light shielding film, and the dielectric film is formed anodic oxidation process, using an Al oxide film.Type: GrantFiled: March 6, 2015Date of Patent: January 12, 2016Assignee: Semiconductor Energy Laboratory Co., LTD.Inventors: Shunpei Yamazaki, Satoshi Murakami, Jun Koyama, Yukio Tanaka, Hidehito Kitakado
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Patent number: 9230995Abstract: Embodiments of the present application relate to an array substrate, the manufacturing method thereof and a display device. The array substrate comprises: a substrate, of gate lines and of data lines, a plurality of pixel units, defined by the gate lines and the data lines, each of the pixel units comprising a thin film transistor and a pixel electrode, wherein the thin film transistor comprises a source electrode, a drain electrode, an active layer, a gate insulating layer and a gate electrode, and the source electrode and the drain electrode are provided on the substrate opposing to each other with a channel of the thin film transistor provided therebetween, and the pixel electrode is positioned in a region outside the thin film transistor within the pixel unit, and is extended to a position above the drain electrode to be partly lapped over and directly connected to the drain electrode.Type: GrantFiled: November 13, 2012Date of Patent: January 5, 2016Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiaoyang Tong, Zhanfeng Cao
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Patent number: 9229289Abstract: An array substrate for a liquid crystal display device and method of manufacturing the same are provided. The array substrate includes: a plurality of paired gate lines at a first distance from each other at a boundary between adjacent first regions on a substrate, including a display area including a plurality of first regions, each including two adjacent pixel regions, a gate insulating layer on the gate lines and including a gate contact hole exposing each of the gate lines, a plurality of data lines crossing the paired gate lines, the first regions located at each crossing, an auxiliary gate line parallel with the data lines and at a boundary between the two adjacent two pixel regions, and a thin film transistor in each of the pixel regions and connected to corresponding gate and data lines, wherein the auxiliary gate line contacts the corresponding gate line through the hole.Type: GrantFiled: December 3, 2013Date of Patent: January 5, 2016Assignee: LG Display Co., Ltd.Inventors: Chan-Soo Park, Se-Eung Lee, Ji-Suk Min
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Patent number: 9217899Abstract: A nanocrystal display includes a display panel including a plurality of pixels; and a substrate including a plurality of pixel areas corresponding to the plurality of pixels, and a boundary area between the pixel areas. Each pixel includes a first electrode on an upper surface of the substrate and in a corresponding pixel area; a second electrode on the upper surface of the substrate and spaced apart from the first electrode in a cross-section direction, a tunnel-shaped cavity defined in the plurality of pixel areas and spaced apart from the substrate by a predetermined distance; and an image display layer in the tunnel-shaped cavity; and a backlight unit which provides a light to the display panel and faces the upper surface of the substrate.Type: GrantFiled: March 26, 2013Date of Patent: December 22, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hoonsik Kim, YeoGeon Yoon, SuWan Woo, Younggoo Song
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Patent number: 9214116Abstract: A display panel includes a first color subpixel, a second color subpixel and a transparent subpixel. The first color subpixel is connected to a first gate line. The second color subpixel is connected to the first gate line. The transparent subpixel is connected to the first gate line and a second gate line adjacent to the first gate line.Type: GrantFiled: January 23, 2013Date of Patent: December 15, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yong-Hwan Shin, Jin-Seob Byun, Baek-Kyun Jeon
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Patent number: 9201268Abstract: A liquid-crystal-lens type light-modulating apparatus and a liquid crystal display having the same are disclosed.Type: GrantFiled: October 19, 2012Date of Patent: December 1, 2015Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Zhuo Zhang
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Patent number: 9201180Abstract: A color filter array and image obtaining apparatus are provided. The color filter array includes at least one unit cell having a predetermined array of pixels, and the predetermined array including the color pixels and transparent pixels. Each 2×2 array of pixels in the unit cell includes one transparent pixel and three color pixels and at least one transparent pixel is located in each row or in each column of the unit cell. The image obtaining apparatus generate an electrical image signal corresponding to sensed light that has passed through the color filter array.Type: GrantFiled: December 20, 2010Date of Patent: December 1, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-Chul Song, Won-Hee Choe, Seong-Deok Lee
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Patent number: 9204554Abstract: According to one embodiment, a method is disclosed for manufacturing a display device. A film material layer is formed on a support substrate. A first heating process for the film material layer at a first temperature to form a film layer and a second heating process for a second region surrounding a first region at a second temperature higher than the first temperature are performed. The first region is provided in a central part of the film layer. A display layer is formed in the first region and a peripheral circuit section is formed at least in a part of the second region. A third heating process is performed for at least a part of the film layer at a third temperature higher than the second temperature. In addition, the film layer is peeled off from the support substrate.Type: GrantFiled: July 17, 2013Date of Patent: December 1, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Tatsunori Sakano, Kentaro Miura, Nobuyoshi Saito, Shintaro Nakano, Tomomasa Ueda, Hajime Yamaguchi
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Patent number: 9195333Abstract: A flat panel display device includes a plurality of scan lines elongated in a direction, a plurality of data lines elongated to intersect the scan lines, a plurality of pixel devices respectively coupled to the plurality of scan lines and the plurality of data lines, a plurality of first sensing lines elongated parallel to the scan lines, a plurality of second sensing lines elongated parallel to the data lines, and a plurality of sensing devices respectively coupled to the plurality of first sensing lines and the plurality of second sensing lines.Type: GrantFiled: September 13, 2013Date of Patent: November 24, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seong-Min Wang, Mu-Gyeom Kim
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Patent number: 9188822Abstract: A COG type LCD device includes a first substrate including a display area and first, second, third and fourth non-display areas, gate and data lines in the display area on the first substrate and defining pixel regions, switching thin film transistor at each crossing portion of the gate and data lines and connected to the gate and data lines, a pixel electrode in each pixel region and connected to the thin film transistor, first testing thin film transistors in the second non-display area connected to the data lines and spaced apart from each other with a constant interval therebetween, first, second and third data testing lines connected to one ends of the data lines through the first testing thin film transistors, first, second and third data testing pads connected to the first, second and third data testing lines, respectively, data link lines in the first non-display area and connected to another ends of the data lines, second testing thin film transistors in the first non-display area and connected to thType: GrantFiled: December 17, 2009Date of Patent: November 17, 2015Assignee: LG Display Co., Ltd.Inventors: Bung-Goo Kim, Ka-Kyung Kim
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Patent number: 9159744Abstract: An active array substrate includes a flexible substrate, an inorganic barrier layer, and at least one active component. The inorganic barrier layer covers the flexible substrate. The inorganic barrier layer has a through hole therein. The through hole of the inorganic barrier layer exposes the flexible substrate. The active component is disposed on the inorganic barrier layer.Type: GrantFiled: March 4, 2014Date of Patent: October 13, 2015Assignee: AU OPTRONICS CORPORATIONInventors: Tsung-Ying Ke, Pin-Fan Wang, Tsi-Hsuan Hsu, Wei-Te Lee
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Patent number: 9147697Abstract: The present disclosure relates to an array substrate and the manufacturing method thereof, and a display apparatus. The manufacturing method of the array substrate comprises following step. A gate insulating layer and an active layer is formed on the substrate with said gate electrode and said common electrode formed thereon. A source drain layer is formed on the substrate with said gate insulating layer and said active layer formed thereon. A passivation layer is formed on the substrate with said source drain layer formed thereon, and a through hole is formed in the passivation layer; a pixel electrode is formed on the substrate with said passivation layer formed thereon with said through hole. The pixel electrode is connected to the drain electrode in the source drain layer through said through hole. The process for forming the pixel electrode comprises first etching, ashing and second etching.Type: GrantFiled: November 9, 2012Date of Patent: September 29, 2015Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Yunbok Lee
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Patent number: 9123292Abstract: Disclosed herein is a display apparatus, including, a panel having a plurality of pixels disposed in a matrix and each including a self-luminous element for emitting light, the panel including first to third conductive layers laminated in order on a supporting substrate, a first contact portion between the first and second conductive layers and a second contact portion between the second and third conductive layers being disposed at the same position in a planar direction.Type: GrantFiled: March 9, 2010Date of Patent: September 1, 2015Assignee: Sony CorporationInventors: Keisuke Omoto, Masatsugu Tomida
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Patent number: 9117846Abstract: A method of manufacturing an oxide thin film transistor includes forming a gate electrode on a substrate; forming a gate insulating film the gate electrode; forming an oxide semiconductor layer on the gate insulating film; sequentially forming a lower data metal layer and an upper data metal layer on including the oxide semiconductor layer; forming an upper source pattern and an upper drain pattern by patterning the upper data metal layer by a wet etching; forming a lower source pattern and a lower drain pattern by patterning the lower data metal layer by a dry etching using the upper source pattern and the upper drain pattern as a mask to form a source electrode and a drain electrode; forming a first passivation film on the source and drain electrodes; performing a heat treatment on the oxide semiconductor layer; and forming a second passivation film on the first passivation film.Type: GrantFiled: October 16, 2013Date of Patent: August 25, 2015Assignee: LG DISPLAY CO., LTD.Inventors: Sang-Moo Park, Bong-Chul Kim, Chan-Ki Ha, Jin-Woo Kwon, Heung-Jo Lee
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Patent number: 9117416Abstract: An exemplary active matrix display device includes a plurality of gate signal lines, a plurality of data signal lines and a plurality of pixel rows. The gate signal lines are independently driven from one another. Each of the pixel rows is electrically coupled to one of the gate signal lines and a part of the data signals lines. The pixel rows include a first pixel row and a second pixel row. The first pixel row and the second pixel row are not neighboring with each other. The gate signal line electrically coupled with the first pixel row and the gate signal line electrically coupled with the second pixel row are synchronously enabled.Type: GrantFiled: June 3, 2010Date of Patent: August 25, 2015Assignee: AU OPTRONICS CORP.Inventors: Pei-Yi Chen, Chun-Wei Huang
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Patent number: 9097942Abstract: Disclosed is a display device for use of a surface display of an arbitrary shape, including a plural number of display element units, each made up of a circuit that forms a single stage of a scanning circuit and a pixel circuit connected to an output of the scanning circuit, are arranged in a unicursal fashion on a display substrate.Type: GrantFiled: May 28, 2014Date of Patent: August 4, 2015Assignee: NLT TECHNOLOGIES, LTD.Inventors: Hiroshi Haga, Hideki Asada, Setsuo Kaneko
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Patent number: 9076875Abstract: A thin film transistor substrate includes a thin film transistor, a source wire, an upper-layer source wire, and a pixel electrode. The thin film transistor includes: a source electrode and a drain electrode located to be spaced from each other on the same plane; a semiconductor film located to straddle those electrodes; an insulating film located to cover at least the source electrode, the drain electrode, and the semiconductor film; an upper-layer source electrode and an upper-layer drain electrode located on the insulating film and respectively connected to the semiconductor film through contact holes; and a gate electrode located below or above the semiconductor film. The source wire extends from the source electrode. The upper-layer source wire extends from the upper-layer source electrode. The pixel electrode is electrically connected to the drain electrode.Type: GrantFiled: July 25, 2013Date of Patent: July 7, 2015Assignee: Mitsubishi Electric CorporationInventors: Kazunori Inoue, Nobuaki Ishiga, Kensuke Nagayama, Naoki Tsumura
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Patent number: 9070316Abstract: A display has a spatial light modulator for dynamically controlling a luminance of each pixel according to an input signal, the spatial light modulator having a non-uniform spatial characteristic, the display also having an optical filter having a spatial pattern to alter the luminance to compensate at least partially for the non-uniform spatial characteristic. An electronic signal processing element applies some pre ompensation predominantly of higher spatial frequencies for the non-uniform spatial characteristic. Such dynamic and optical compensation can enable tuning for different optimizations or for compensating for variations over time. A backlight has an optical source and an optical filter, the source having a color output which has a non-uniform spatial characteristic, and the optical filter having a spatial pattern to alter the color to compensate in part at least for the non-uniform spatial characteristic.Type: GrantFiled: December 31, 2012Date of Patent: June 30, 2015Inventors: Gerrit Verstraete, Tom Kimpe
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Patent number: 9069198Abstract: Disclosed is a display apparatus in which liquid crystal is injected into a non-display area having a transmitting hole formed in a predetermined portion of a panel corresponding to a camera, wherein the display apparatus comprises a display unit having a panel; and a guide frame, wherein the guide frame includes: a guide sidewall; and a panel supporter, wherein a camera receiving part with a camera mounted thereon is formed in a first panel support of the panel supporter, a transmitting hole for transmitting light to the camera is formed in a black matrix of a first non-display area to be placed on the first panel supporter of the upper substrate, and a display area of the panel and the first non-display area are filled with liquid crystal.Type: GrantFiled: December 27, 2011Date of Patent: June 30, 2015Assignee: LG DISPLAY CO., LTD.Inventors: DongYong Kim, JaeWoo Park, NamDo Son, SungWoo Kim, JongSub Park, KyungMi Kim, KeyYoung Yang, GiNam Jean
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Patent number: 9064465Abstract: The present invention provides an electronic device (100) comprising a homochromatic liquid crystal display (155), a color liquid crystal display (165), and a backlight (175) having a light-pipe (220), the homochromatic liquid crystal display, the color liquid crystal display and the light-pipe being positioned in overlapping relation to each other, the light-pipe arranged to direct light (230d) through both the homochromatic liquid crystal display and the color liquid crystal display, a homochromatic liquid crystal display driver (150) arranged to generate an image on the homochromatic liquid crystal display in response to an image signal, a color liquid crystal display driver (160) arranged to generate an image on the color liquid crystal display in response to an image signal, a processor (103) arranged to receive a light control signal (LS1), and to forward an image signal to one of the homochromatic liquid crystal display driver or the color liquid crystal display driver dependent on the light control siType: GrantFiled: May 7, 2008Date of Patent: June 23, 2015Assignee: Google Technology Holdings LLCInventors: Jie Huang, Weng Woh Khor
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Patent number: 9059046Abstract: A thin film transistor array panel according to an exemplary embodiment of the invention includes: a substrate; a gate line positioned on the substrate and including a gate electrode; a gate insulating layer positioned on the gate line; an oxide semiconductor layer positioned on the substrate; a source electrode and a drain electrode positioned on the oxide semiconductor layer; a first insulating layer positioned on the source electrode and the drain electrode and including a first contact hole; a data line positioned on the first insulating layer and intersecting the gate line; and a pixel electrode over the first insulating layer. The source electrode and the drain electrode each comprise a metal oxide. The data line is electrically connected to the source electrode through the first contact hole.Type: GrantFiled: September 12, 2012Date of Patent: June 16, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Shin Il Choi, Seung-Ha Choi, Bong-Kyun Kim, Sang Gab Kim, Sho Yeon Kim, Hyun Kim, Hong Sick Park, Su Bin Bae
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Patent number: 9054698Abstract: A data signal voltage on a signal line is held in a voltage holding capacitor through an n-type MOS transistor switched on by a gate scan voltage, and supplied to an analog amplifier circuit. The analog amplifier circuit is formed of an MOS transistor having a double gate structure, and the operating point thereof is set at an operating range in which dependence of Ids on Vds is substantially nullified. Even when Vds is varied due to a response of liquid crystal, Ids is substantially fixed. Accordingly, the pixel voltage which is substantially proportional to the data signal voltage can be applied to the liquid crystal.Type: GrantFiled: December 1, 2013Date of Patent: June 9, 2015Assignee: Gold Charm LimitedInventor: Ken-Ichi Takatori
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Publication number: 20150146122Abstract: A trace structure is proposed. The trace structure includes a substrate, a shorting bar on the substrate and a plurality of data lines or scan lines, whose one end is connected to the shorting bar, on the substrate. The trace structure also includes an excessive shorting bar on the substrate. A break on a data line or a scan line is repaired by connecting the broken data line or scan line with one of the excessive shorting bar or the rest of the shorting bars. The present invention also proposes a repair method and a LCD panel using the trace structure. The simple trace structure and easy break repair operation not only raises repair efficiency but also lessens repair time and saves cost.Type: ApplicationFiled: December 13, 2013Publication date: May 28, 2015Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.Inventor: Xiangyang Xu
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Publication number: 20150146124Abstract: A manufacturing method of a liquid crystal display includes: providing a lower mother substrate including a plurality of lower panels including thin film transistors and coated with a lower alignment layer, providing an upper mother substrate including a plurality of upper panels respectively corresponding to the plurality of lower panels and coated with an upper alignment layer, forming a mother substrate assembly by forming a liquid crystal mixture layer including a liquid crystal between the lower mother substrate and the upper mother substrate and combining the lower mother substrate and the upper mother substrate, dividing each upper panel into a first region, a second region, and a third region by forming three cutting lines for each upper panel at the upper mother substrate of the mother substrate assembly; applying a voltage to the first region and the third region of the upper mother substrate that is not covered by the lower mother substrate and exposed to pretilt the liquid crystal, and irradiatingType: ApplicationFiled: August 27, 2014Publication date: May 28, 2015Inventors: JANG-IL KIM, SEI-YONG PARK, YEO GEON YOON, SUNG HEE HONG
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Publication number: 20150146123Abstract: A display apparatus includes a display panel including a display area in which a plurality of pixels is disposed and a non-display area adjacent to the display area. A plurality of dummy patterns extends in a first direction and is disposed in a predetermined area of the display area and a predetermined area of the non-display area at a boundary area between the display area and the non-display area. A plurality of color filters extends in a second direction perpendicular to the first direction in the display area to overlap with the pixels arranged in the second direction. A predetermined area of the color filters disposed adjacent to the non-display area in the second direction is partially overlapped with a corresponding dummy pattern.Type: ApplicationFiled: May 21, 2014Publication date: May 28, 2015Applicant: Samsung Display Co., Ltd.Inventor: Hyunggi JUNG
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Patent number: 9041112Abstract: In a semiconductor device, where, with respect to a parasitic resistor in a current mirror circuit, a compensation resistor for compensating the parasitic resistor is provided in the current mirror circuit, the current mirror circuit includes at least two thin film transistors. The thin film transistors each have an island-shaped semiconductor film having a channel formation region and source or drain regions, a gate insulating film, a gate electrode, and source or drain electrodes, and the compensation resistor compensates the parasitic resistor of any one of the gate electrode, the source electrode, and the drain electrode. In addition, each compensation resistor has a conductive layer containing the same material as the gate electrode, the source or drain electrodes, or the source or drain regions.Type: GrantFiled: February 18, 2010Date of Patent: May 26, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Atsushi Hirose
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Publication number: 20150138470Abstract: A liquid crystal display panel is provided. The liquid crystal display panel includes a first substrate comprising a pixel area and a non-pixel area surrounding the pixel area, a thin-film transistor (TFT) disposed on the pixel area of the first substrate and a pixel electrode connected to the TFT, and a plurality of metal wirings disposed on the non-pixel area of the first substrate and one or more dummy patterns disposed adjacent to the metal wirings. The TFT includes a gate electrode, a source electrode, and a drain electrode, and the dummy patterns are formed of a same material as at least one of the gate source, the source electrode, and the drain electrode.Type: ApplicationFiled: October 13, 2014Publication date: May 21, 2015Inventors: Hyun Ho KANG, Eun Kil PARK, Hyung June KIM, O Sung SEO, Tae Kyung YIM
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Publication number: 20150138464Abstract: A liquid crystal display device includes: pixel electrodes arranged in respective sub-pixels arrayed in a matrix, plural image signal lines extending in a column direction of the matrix, and supplied with image signals, pixel transistors which are switches arranged in the respective sub-pixels, and supply the image signals to the pixel electrodes, and scanning signal lines extending in a row direction of the matrix, and control conduction of the pixel transistors. The pixel electrodes aligned in a direction along which the image signal lines extend are connected to either of two adjacent image signal lines with six sub-pixels as one period. The pixel electrodes corresponding to five of the six sub-pixels are connected to one of the two adjacent ones of the image signal lines, and the pixel electrode corresponding to one sub-pixel is connected to the other of the two adjacent ones of the image signal lines.Type: ApplicationFiled: November 19, 2014Publication date: May 21, 2015Inventors: Kengo OKAZAKI, Yoshinori AOKI
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Publication number: 20150138469Abstract: A display device is provided. The display device includes a substrate including a plurality of pixel areas; a thin film transistor disposed on the substrate; a first insulating layer disposed on the thin film transistor; a pixel electrode connected to the thin film transistor and disposed on the first insulating layer; a common electrode separated from the pixel electrode with a microcavity interposed therebetween; a second insulating layer disposed on the common electrode; a roof layer disposed on the second insulating layer; a hydrophobic layer disposed on the roof layer and including a plurality of protrusions; an injection hole disposed in the common electrode, the second insulating layer, and the roof layer, the injection hole exposing a portion of the microcavity; a liquid crystal layer for filling the microcavity; and an overcoat formed on the roof layer and covering the injection hole, so as to seal the microcavity.Type: ApplicationFiled: April 29, 2014Publication date: May 21, 2015Applicant: Samsung Display Co., Ltd.Inventors: Tae Gyun KIM, Hyoung Sub LEE, Tae Woon CHA, Woo Yong SUNG
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Patent number: 9035299Abstract: A TFT substrate (10A), which is semiconductor device of the present invention, has a first substrate (11), and a plurality of TFTs supported by the first substrate (11). Each TFT has an oxide semiconductor layer (22A) supported by the first substrate (11), an insulating layer (32A) formed on the oxide semiconductor layer (22A), a first electrode (12A) formed on the insulating layer (32A), and a second electrode (14A) and a third electrode (13A) connected to the oxide semiconductor layer (22A). The second electrode (14A) and the third electrode (13A) are formed of an oxide conductive layer in which the same oxide semiconductor film as the oxide semiconductor layer (22A) is given a reduced resistance.Type: GrantFiled: November 29, 2011Date of Patent: May 19, 2015Assignee: SHARP KABUSHIKI KAISHAInventor: Seiichi Uchida
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Patent number: 9035314Abstract: An object of the present invention is to provide an electrooptical device having high operation performance and reliability, and a method of manufacturing the electrooptical device. Lov region 207 is disposed in n-channel TFT 302 that comprises a driver circuit, and a TFT structure which is resistant to hot carriers is realized. Loff regions 217 to 220 are disposed in n-channel TFT 304 that comprises a pixel section, and a TFT structure of low off current is realized. An input-output signal wiring 305 and gate wiring 306 are formed by laminating a first wiring and a second wiring having lower resistivity than the first wiring, and wiring resistivity is steeply reduced.Type: GrantFiled: April 4, 2012Date of Patent: May 19, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Jun Koyama
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Publication number: 20150131018Abstract: A liquid crystal display device includes a first substrate, a thin film transistor on the first substrate, a first electrode on the first substrate and connected to the thin film transistor, a second substrate facing the first substrate, color filters on the first substrate or the second substrate, a black matrix between the color filters on the first substrate or the second substrate, a second electrode spaced apart from the first electrode and on the first substrate or the second substrate, a second electrode conductive line on the black matrix, a spacer which is between the first substrate and the second substrate and supports the first substrate and the second substrate, and a liquid crystal layer between the first substrate and the second substrate. The spacer is electrically connected to the second electrode and the second electrode conductive line.Type: ApplicationFiled: June 2, 2014Publication date: May 14, 2015Inventors: Yeon-Mun JEON, Yi-Seop SHIM, Zhang-Soon JANG, Sung-Man KIM, Yu-Jin LEE, Young-Je CHO
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Publication number: 20150131019Abstract: The present invention provides a liquid crystal driving method of sufficiently reducing DC image sticking together with flicker and a liquid crystal display device driven by using the liquid crystal driving method. The invention relates to a liquid crystal driving method of driving liquid crystal by causing a potential difference between a pair of electrodes provided for one of upper and lower substrates. Polarity of each of application voltages to the pair of electrodes is inverted, and a planar electrode is provided for the upper substrate and/or the lower substrate.Type: ApplicationFiled: April 22, 2013Publication date: May 14, 2015Inventors: Yuichi Kita, Takatomo Yoshioka, Yoshiki Nakatani
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Publication number: 20150131011Abstract: A display substrate includes a base substrate, a color filter layer and a retarder layer. The base substrate includes a first sub pixel area, a second sub pixel area and a third sub pixel area. The color filer layer is disposed on a front surface of the base substrate, and includes at least one of a magenta color filter, a cyan color filter and a yellow color filter in the first sub pixel area and the second sub pixel area and a white color filter in the third sub pixel area. The retarder layer is disposed on a rear surface of the base substrate opposite to the front surface of the base substrate. The retarder layer is configured to polarize light in the first sub pixel area and the second sub pixel area to form a first polarized light. The retarder layer is further configured to polarize the light in the third sub pixel area to form a second polarized light, the second polarized light being different from the first polarized light. Thus, a driving speed of a display apparatus may be decreased.Type: ApplicationFiled: April 8, 2014Publication date: May 14, 2015Applicant: Samsung Display Co., Ltd.Inventors: Kwang-Keun LEE, Seon-Tae YOON, Hyun-Min CHO, Jae-Byung PARK, Hae-Il PARK
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Publication number: 20150131016Abstract: A backlight device includes an input line connected to an anode of a light source unit; an output line connected to a cathode of the light source unit; a resistance line connected between the output line and a ground and disposed in a pattern having a predetermined width and length to have a predetermined resistance; a sensing line connected to the output line; and a controller for measuring a balance voltage of the output line through the sensing line and controls an amount of current supplied to the input line based on the balance voltage, in which when a reference current is supplied to the input line, the balance voltage of the output line becomes a predetermined reference voltage due to the predetermined resistance.Type: ApplicationFiled: April 14, 2014Publication date: May 14, 2015Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Seung-Wan KIM, Dae-Sik LEE, Jin-Won JANG
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Publication number: 20150131017Abstract: A display apparatus includes a first substrate that includes a display area in which pixels are arranged and a non-display area surrounding the display area, a second substrate disposed to face the first substrate, and a sealing member disposed in the non-display area to attach the second substrate to the first substrate. The first substrate includes a base substrate, a plurality of inorganic insulating layers disposed on the base substrate in the non-display area, and an organic layer disposed on the inorganic insulating layer.Type: ApplicationFiled: May 2, 2014Publication date: May 14, 2015Applicant: Samsung Display Co., Ltd.Inventors: Sungin RO, HyunWuk KIM, Ock Soo SON, Jeanho SONG, Eunje JANG
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Patent number: 9030393Abstract: A first substrate includes first and second gate lines extending in a first direction, first and second source lines extending in a second direction and a switching element electrically connected with the gate line and the source line. A pixel electrode includes a contact portion contacting with the switching element and extending in the first direction and a main pixel electrode contacting with the contact portion and extending in the second direction. The switching element includes a drain electrode arranged between the source lines. The drain electrode includes a first electrode portion located under the contact portion, a second electrode portion located under the main pixel electrode and connected with the first electrode portion, a third electrode portion connected with the second electrode portion along the first gate line, and a fourth electrode portion connected with the second electrode portion and extending along the second gate line.Type: GrantFiled: December 5, 2013Date of Patent: May 12, 2015Assignee: Japan Display Inc.Inventors: Masato Kesho, Jin Hirosawa
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Patent number: 9030637Abstract: A method for fabricating an in-plane switching (IPS) type liquid crystal display (LCD) device according to an embodiment includes forming gate lines arranged in a first direction and data lines arranged in a second direction substantially perpendicular to the first direction, the gate lines and the data lines defining pixel regions on an array substrate; forming a storage electrode on the array substrate; forming common electrodes extending across each pixel region; forming pixel electrodes arranged to be substantially parallel to the common electrodes, the common electrodes and the pixel electrodes being alternately arranged to generate an in-plane field in each pixel region; and forming thin film transistors (TFTs) at intersection areas of the gate lines and the data lines, each TFT including a source electrode connected to the corresponding data line, a drain electrode connected to the corresponding pixel electrode and a gate electrode.Type: GrantFiled: October 19, 2012Date of Patent: May 12, 2015Assignee: LG Display Co., Ltd.Inventors: Jae-Young Oh, Joon-Youp Lee, Hyun-Cheol Jin, Min-Jic Lee
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Patent number: 9029861Abstract: Thin film transistors having a high current drive capability and a suitable threshold voltage are provided. The thin film transistor includes a gate electrode, an insulating layer formed on the gate electrode, a semiconductor layer formed on the insulating layer, and source/drain electrodes formed on the semiconductor layer. The semiconductor layer includes a plurality of regions separated from each other in a longitudinal direction of the source/drain electrodes.Type: GrantFiled: May 20, 2011Date of Patent: May 12, 2015Assignee: Sharp Kabushiki KaishaInventors: Tetsuo Kikuchi, Yoshiharu Kataoka, Shinya Tanaka, Junya Shimada, Chikao Yamasaki