Interdigited (comb-shaped) Electrodes Patents (Class 349/141)
  • Patent number: 10649285
    Abstract: This invention discloses a pixel structure comprising: a scan line, and a data line, being crossed with the scan line to define a pixel unit. The pixel unit comprises a pixel electrode including a main body portion and a peripheral portion; a pixel driving element; and a common electrode disposed in an overlay structure with the pixel electrode. The common electrode forms a storage capacitor with the pixel electrode, and includes an outside portion adjacent to the data or scan line. The pixel electrode further includes an extension portion located outside the peripheral portion. The extension portion electrically connects the peripheral portion and forms an evading hole therebetween. The outside portion of the common electrode corresponds to the evading hole. The present invention further discloses a liquid crystal display panel. This invention has advantages of increasing the capacity of the storage capacitor and improving the parasitic capacitance and dark veins.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: May 12, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yanxi Ye
  • Patent number: 10642115
    Abstract: Examples of liquid crystal display devices are described herein. In an example, a liquid crystal display device comprises a first substrate, a second substrate, and a liquid crystal layer therebetween. The second substrate comprises a plurality of source lines, a plurality of gate lines crossing the plurality of source lines, and a plurality of pixels in a matrix arrangement. A pixel from the plurality of pixels being defined by two adjacent source lines and two adjacent gate lines. A pixel electrode formed in the pixel comprises a plurality of slits. The plurality of slits includes a first set of slit segments extending in a first direction, and a second set of slit segments extending in a second direction. Further, a first light blocking member extends along a common boundary area of the first set of slit segments and the second set of slit segments.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: May 5, 2020
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventor: Teruhisa Nakagawa
  • Patent number: 10642103
    Abstract: According to one embodiment, a display device includes first and second substrates, and liquid crystal layer. The first substrate includes first and second electrodes. The second electrode includes comblike electrodes extending in parallel to a first direction and tapered toward tips thereof, and a connecting portion which connects the comblike electrodes. An initial alignment direction is parallel to the first direction or a direction orthogonal to the first direction. The comblike electrode includes a first part having sides each form a first angle with the first direction, and a second part having sides each form a second angle with the first direction, the second angle being greater than the first angle.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: May 5, 2020
    Assignee: Japan Display Inc.
    Inventor: Toshiharu Matsushima
  • Patent number: 10627682
    Abstract: A liquid crystal display device includes a first substrate having a plurality of pixel regions; thin film transistors on the first substrate; a first electrode electrically connected to each of the thin film transistors and in each of the plurality of pixel regions; a passivation layer on the first electrode; a second electrode on the passivation layer and defining an opening in each of the plurality of pixel regions corresponding to the first electrode; a liquid crystal layer on the second electrode; and a second substrate on the liquid crystal layer.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: April 21, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Song-Yi Jeong, Won-Taeck Kim
  • Patent number: 10620489
    Abstract: According to one embodiment, a liquid crystal display device comprises first and second substrates, a sealing member, and a liquid crystal layer. The first substrate includes an image display area, a peripheral area, a common electrode, a scanning line, a signal line, a switching element, a pixel electrode, and first and second electrodes. At least a part of the first electrode is formed of a metal material and is closer to the liquid crystal layer than the scanning and signal lines. The first voltage is applied to the first electrode and the second voltage is applied to the second electrode. Ions in the liquid crystal layer are trapped by an electric field formed between the first and second electrodes.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: April 14, 2020
    Assignee: Japan Display Inc.
    Inventor: Hideki Shiina
  • Patent number: 10615179
    Abstract: A more convenient and highly reliable semiconductor device which has a transistor including an oxide semiconductor with higher impact resistance used for a variety of applications is provided. A semiconductor device has a bottom-gate transistor including a gate electrode layer, a gate insulating layer, and an oxide semiconductor layer over a substrate, an insulating layer over the transistor, and a conductive layer over the insulating layer. The insulating layer covers the oxide semiconductor layer and is in contact with the gate insulating layer. In a channel width direction of the oxide semiconductor layer, end portions of the gate insulating layer and the insulating layer are aligned with each other over the gate electrode layer, and the conductive layer covers a channel formation region of the oxide semiconductor layer and the end portions of the gate insulating layer and the insulating layer and is in contact with the gate electrode layer.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: April 7, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Patent number: 10599905
    Abstract: Disclosed is a fingerprint detection circuit and a display device. The fingerprint detection circuit comprises at least one fingerprint detection unit, the fingerprint detection unit comprising a switch transistor and a sensor capacitor, the fingerprint detection unit further comprising an output amplification element and a data input terminal for receiving a data signal, wherein a control terminal of the output amplification element is coupled with a terminal of the sensor capacitor, an output terminal of the output amplification element functions as an output terminal of the fingerprint detection unit, an input terminal of the output amplification element is coupled with the data input terminal, the output amplification element is configured for amplifying and outputting a current input to the output amplification element via the data input terminal.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: March 24, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Haisheng Wang, Xue Dong, Hailin Xue, Xiaochuan Chen, Xiaoliang Ding, Yingming Liu, Shengji Yang, Weijie Zhao, Hongjuan Liu, Wei Liu, Changfeng Li, Pengpeng Wang
  • Patent number: 10591767
    Abstract: A display device in which ambient light reflections, for example, from IPS or FFS type displays are reduced by a circular polariser (e.g., linear polariser combined with external quarter waveplate) to make the light circular polarized, as it traverses the multiple reflective layers between the polariser and LC layer, and then an internal quarter waveplate converts the light back to linear polarisation before it enters the LC, so the display can operate as normal, while the circular polariser absorbs unwanted reflections of ambient light from within the display.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: March 17, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Nathan James Smith, Hywel Hopkin, Kiyoshi Minoura, Akira Sakai, Benjamin John Broughton
  • Patent number: 10587866
    Abstract: A reconfigurable parallax barrier panel comprising an electro-optic material has a first region, a second region and a first compensation region. First electrodes are addressable to define, in the first region of the panel, a parallax barrier array selected from a plurality of predetermined parallax barrier arrays, and second electrodes are addressable define, in the second region of the panel, independently of the first parallax barrier array, a parallax barrier array selected from the plurality of predetermined parallax barrier arrays. Electrodes of the first compensation region are addressable to define, dependent on the first parallax barrier array and on the second parallax barrier array, at least one slit and/or at least one barrier between the first region and the second region.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: March 10, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Nathan James Smith, Hywel Hopkin, Takehiro Murao, Ryoh Kikuchi
  • Patent number: 10578930
    Abstract: A liquid crystal display device including a first substrate including a first display electrode and a second display electrode that is disposed opposite the first display electrode with an insulator interposed between the first display electrode and the second display electrode, a second substrate disposed opposite the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. In each pixel, the first display electrode includes a plurality of first openings, and the second display electrode includes a plurality of second openings disposed corresponding to positions of the plurality of first openings.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: March 3, 2020
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Koji Mimura
  • Patent number: 10580805
    Abstract: Provided is a display apparatus including a substrate and a semiconductor layer including first and second semiconductor layers. A first gate insulating layer is formed on the semiconductor layer. A first gate wiring overlapping the first semiconductor layer is formed on the first gate insulating layer. A second gate insulating layer is formed on the first gate wiring. A second gate wiring overlapping the second semiconductor layer is formed on the second gate insulating layer. A third gate insulating layer covers the second gate wiring. A driving voltage line intersecting the first and second gate wirings is formed on the third gate insulating layer. A data line intersecting the first and second gate wirings is formed on the third gate insulating layer. A short circuit protection area is formed between the first gate wiring, the second gate wiring, the driving voltage line and the data line.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: March 3, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyo Jin Kim, Won Kyu Lee, Seung Gyu Tae
  • Patent number: 10578932
    Abstract: According to an aspect, a liquid crystal display device includes: a first substrate and a second substrate that face each other; a liquid crystal layer provided between the first substrate and the second substrate; and a first electrode and a second electrode provided between the first substrate and the liquid crystal layer. The first electrode includes: at least an electrode base portion that extends in a first direction; and a plurality of comb-shaped portions that protrude from the electrode base portion at a fixed distance away from each other, and extend in a second direction different from the first direction. Each comb-shaped portion has a coupling portion layered on or under the electrode base portion.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: March 3, 2020
    Assignee: Japan Display Inc.
    Inventors: Masaya Tamaki, Toshiharu Matsushima
  • Patent number: 10571736
    Abstract: A method for manufacturing an array substrate and an array substrate are disclosed. The method comprises the steps of forming a plurality of control electrodes on a baseplate, and forming a color-resist region between two adjacent control electrodes, wherein the color-resist region is a first color-resist region, a second color-resist region, a third color-resist region, and a fourth color-resist region in sequence; forming a first color-resist in the first color-resist region, forming a second color-resist in the second color-resist region, and forming a third color-resist in the third color-resist region; and coating the baseplate on which the control electrodes, the first color-resist, the second color-resist, and the third color-resist are formed and the fourth color-resist region with a transparent photoresist so as to form a flat layer. In the method according to the present disclosure, the production efficiency of the array substrate can be improved.
    Type: Grant
    Filed: September 6, 2015
    Date of Patent: February 25, 2020
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd., Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventor: Xing Ming
  • Patent number: 10573264
    Abstract: According to one embodiment, a display device comprises first and second substrates and a liquid crystal layer. The first substrate includes a pixel electrode and a common electrode. The second substrate is opposed to the first substrate. The liquid crystal layer is between the first substrate and the second substrate. A frame frequency for rewriting a voltage of the pixel electrode is 80 Hz or more. A liquid crystal material contained in the liquid crystal layer has negative dielectric anisotropy. Product ?nd of a gap d between the first substrate and the second substrate and refractive anisotropy ?n of the liquid crystal material is less than 0.33 ?m. The gap d is more than 2 ?m and less than 3 ?m.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: February 25, 2020
    Assignee: Japan Display Inc.
    Inventors: Takenori Hirota, Jin Hirosawa, Hidemasa Yamaguchi, Yasuhiro Takahashi
  • Patent number: 10571754
    Abstract: The present disclosure provides a liquid crystal display device including a plurality of pixels arranged in an array, each of the pixels comprising: a first pixel region and a second pixel region aligned vertically with the first pixel region. Any two adjacent pixels in the same row have structures being mirror-symmetric with respect to each other. And, for any two adjacent rows of pixels, a structure of the mth pixel in the (N+1)th row and a structure of the (m+1)th pixel in the Nth row are the same, where N and M are natural numbers.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: February 25, 2020
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., LTD.
    Inventor: Wenying Li
  • Patent number: 10571749
    Abstract: According to one embodiment, a liquid crystal display device includes second substrates, a light-shielding layer, and a liquid crystal layer. The first substrate includes pixel electrodes, a common electrode, and subpixel areas each including area in which the pixel electrode is present and a second area in which the pixel electrode is not present. Each of the subpixel areas includes first and second sides. The first area includes an axial area and branch areas. The second area includes a gap area between the adjacent branch areas. The axial area includes a projection portion projecting to the second side and in alignment with the gap area, and overlaps the light-shielding layer.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: February 25, 2020
    Assignee: Japan Display Inc.
    Inventor: Toshiharu Matsushima
  • Patent number: 10564463
    Abstract: To improve sensing sensitivity of a touch panel. A touch panel-attached display device includes an active matrix substrate 1, a counter substrate, and a liquid crystal layer. On the active matrix substrate 1, a TFT (display control element) 42, a first insulating film 44, a plurality of pixel electrodes 31, a second insulating film 46, and a counter electrode 21 are laminated in order. In the active matrix substrate 1, a control unit which detects a touch position by supplying a touch driving signal to a plurality of counter electrodes 21, and a touch sensor wiring 22 which is formed between the first insulating film 44 and the second insulating film 46, which connects the control unit and the counter electrode 21, and which is for supplying the touch driving signal from the control unit to the counter electrode 21, are also formed.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: February 18, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tetsuya Yamashita, Yoshihito Hara
  • Patent number: 10551694
    Abstract: According to one embodiment, a liquid crystal device includes a first substrate including a first electrode and a second electrode, a second substrate, a liquid crystal layer, and the second electrode is located on a side of the liquid crystal layer with respect to the first electrode and includes a first opening, the first opening is formed into a polygonal shape including a base portion and at least one projecting portion projecting from the base portion along a first direction, a width of the base portion along the first direction is greater than a width of the projecting portion along the first direction, and the liquid crystal layer exhibits transparency while no voltage being applied and scattering property while voltage being applied.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: February 4, 2020
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Masaaki Kabe, Shinichiro Oka, Chikyu Nakaoka
  • Patent number: 10551704
    Abstract: Provided is an active matrix substrate that includes a substrate, a thin film transistor, an electrode layer, and a second insulating film. The thin film transistor is provided on the substrate and includes an oxide semiconductor layer, a gate electrode, and source and drain electrodes. The oxide semiconductor layer includes a first region as a channel region. The electrode layer is level with the gate electrode, is provided in a different region from the thin film transistor, and includes a first end. The second insulating film is provided between the substrate and the electrode layer and includes a second end at a more retreated position than the first end of the electrode layer. The oxide semiconductor layer further includes a second region having lower resistance than the first region. The electrode layer is electrically coupled, at the first end, to the second region of the oxide semiconductor layer.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: February 4, 2020
    Assignee: JOLED INC.
    Inventors: Eri Matsuo, Tomoatsu Kinoshita, Motohiro Toyota, Yasunobu Hiromasu
  • Patent number: 10551706
    Abstract: The present invention is intended to control the color temperature of white exhibited by a liquid crystal display device. White is produced when light waves emitted through pixels associated with three colors of red, green, and blue have maximum intensities. The amounts of light emitted through the respective pixels are controlled by differentiating the shapes of the pixel electrodes disposed at the respective pixels from one another. Thus, the color temperature of white is controlled. Otherwise, the shapes of interceptive films disposed at the respective pixels are differentiated from one another in order to control light waves emitted through the respective pixels. Thus, the color temperature of white is controlled. The interceptive film may be shaped like the pixel electrode. Otherwise, the interceptive film may be realized with an interceptive pattern other than that of the pixel electrode or one of openings bored in a black matrix.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: February 4, 2020
    Assignees: Japan DIsplay Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Ikuko Mori, Munenori Motooka, Ryutaro Oke, Kazunori Ojima, Kikuo Ono
  • Patent number: 10551681
    Abstract: A liquid crystal panel includes: a first substrate including multiple pixel electrodes; a liquid crystal layer; and a second substrate. The domains in the display unit region located in an nth row are arranged in an order of a first domain, a second domain, a third domain, and a fourth domain. Each of the pixel electrodes is provided with multiple fine slits parallel to the alignment vectors of the respective domains. Each of the pixel electrodes includes a region where the fine slits do not exist, at both ends of the pixel electrode parallel to the row direction and at one or both of ends of the pixel electrode parallel to the column direction. A portion having a largest width of the region where the fine slits do not exist is included in one or both of the ends of the pixel electrode parallel to the row direction.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: February 4, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Fumikazu Shimoshikiryoh, Shinichi Terashita, Kouichi Watanabe
  • Patent number: 10545386
    Abstract: The present disclosure provides a display panel and a display device. The display panel includes a plurality of sub-pixels arranged in an array. A region between any two adjacent columns of sub-pixels is a column spacing region. The column spacing region includes a first column spacing region with signal touch line and a second column spacing region. In each column of sub-pixels adjacent to the first column spacing region, adjacent ends of any two adjacent sub-pixels close to the first column spacing region are aligned in a sub-pixel column direction. In each column of sub-pixels adjacent to the second column spacing region, adjacent ends of at least two adjacent sub-pixels close to the second column spacing region are misaligned in the sub-pixel column direction.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: January 28, 2020
    Assignee: Shanghai AVIC OPTO Electronics Co., Ltd.
    Inventors: Dandan Qin, Xiaodong Luo, Zhaokeng Cao, Boping Shen, Xiufeng Zhou
  • Patent number: 10539847
    Abstract: It is an object of the present invention to apply a sufficient electrical field to a liquid crystal material in a horizontal electrical field liquid crystal display device typified by an FFS type. In a horizontal electrical field liquid crystal display, an electrical field is applied to a liquid crystal material right above a common electrode and a pixel electrode using plural pairs of electrodes rather than one pair of electrodes. One pair of electrodes includes a comb-shaped common electrode and a comb-shaped pixel electrode. Another pair of electrodes includes a common electrode provided in a pixel portion and the comb-shaped pixel electrode.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: January 21, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hajime Kimura, Hideki Uochi
  • Patent number: 10541288
    Abstract: Provided is a flexible organic electroluminescent device and a method for fabricating the same. In the flexible electroluminescent device, line hole patterns are formed on surfaces of a plurality of inorganic layers positioned in a pad region in which a flexible printed circuit board is connected to prevent a path of cracks caused by repeated bending and spreading of the organic electroluminescent device from spreading to the interior of the device.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: January 21, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Su Ho Kim, Sang Bae Kim, Jun Tae Jeon, Yong Sam Lee
  • Patent number: 10527891
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a first line, a second line, a switching element, a common electrode, an insulating film disposed on the common electrode, a pixel electrode connected with the switching element and opposed to the common electrode with the insulating film interposed therebetween, and a first alignment film covering the pixel electrode. The second substrate includes a second alignment film. And the pixel electrode includes one main pixel electrode extending in a belt shape in a pixel area defined by the first line and the second line.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: January 7, 2020
    Assignee: Japan Display Inc.
    Inventors: Seiji Uejima, Hidemasa Yamaguchi, Yoshitaka Ozeki, Takeyuki Tsuruma, Kenta Seki, Toshiaki Fukushima
  • Patent number: 10520777
    Abstract: A liquid crystal display, including a first substrate; a gate line and a data line disposed on the first substrate; and a pixel electrode connected to the gate line and the data line and comprising a first sub pixel electrode and a second sub pixel electrode disposed on the first substrate. Each of the first sub pixel electrode and the second sub pixel electrode includes a transverse stem; a longitudinal stem; and a plurality of minute branches extending from transverse stem and the longitudinal stem. A width of the first sub pixel electrode is different from a width of the second sub pixel electrode.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: December 31, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hak Sun Chang, Jang Wi Ryu, Ki Chul Shin, Jae-Soo Jang
  • Patent number: 10514579
    Abstract: The display device includes a first substrate provided with a driver circuit region that is located outside and adjacent to a pixel region and includes at least one second transistor which supplies a signal to the first transistor in each of the pixels in the pixel region, a second substrate facing the first substrate, a liquid crystal layer between the first substrate and the second substrate, a first interlayer insulating film including an inorganic insulating material over the first transistor and the second transistor, a second interlayer insulating film including an organic insulating material over the first interlayer insulating film, and a third interlayer insulating film including an inorganic insulating material over the second interlayer insulating film. The third interlayer insulating film is provided in part of an upper region of the pixel region, and has an edge portion on an inner side than the driver circuit region.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: December 24, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yasuharu Hosaka, Yukinori Shima, Kenichi Okazaki, Shunpei Yamazaki
  • Patent number: 10497722
    Abstract: The present invention discloses an array substrate and a manufacturing method thereof, and a liquid crystal display device, which relate to the field of liquid crystal display technology and may keep patterns at the slit tail ends of slit electrodes consistent with predesigned patterns so as to avoid a trace mura phenomenon. The array substrate includes a plurality of sub-pixel units defined by crossing of a plurality of gate lines and a plurality of data lines, wherein a first electrode is arranged in each sub-pixel unit, the first electrode is a slit electrode, and a common electrode line is arranged below the first electrode. In each sub-pixel unit, a light blocking layer is arranged between the common electrode line and the first electrode, and both the slit tail end of the first electrode and the common electrode line are positioned in the area of the light blocking layer.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: December 3, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Qiyu Shen
  • Patent number: 10495932
    Abstract: A display substrate and a display device are provided. The display substrate includes: a base substrate, a pixel electrode provided on the base substrate; and a light-shielding pattern. The pixel electrode can include first sub-pixel electrodes and second sub-pixel electrodes arranged alternately, the first sub-pixel electrode includes a first trunk portion and a first opening structure provided in a periphery of the first trunk portion, the second sub-pixel electrode includes a second trunk portion and a second opening structure provided in a periphery of the second trunk portion, the light-shielding pattern includes a first light-shielding portion, and the first light-shielding portion is provided at an end portion of a gap between the first sub-pixel electrode and the second sub-pixel electrode.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: December 3, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongfei Cheng, Jianbo Xian, Pan Li
  • Patent number: 10495936
    Abstract: A pixel structure includes scan lines, data lines and pixel areas. The scan lines are separately arranged in parallel in a horizontal direction. The data lines are separately arranged in parallel in a vertical direction. The scan lines and the data lines overlap with each other to form the pixel areas. The pixel structure further includes a connection electrode coupled to pixel areas. The connection electrode includes a first connection layer and a second connection layer. The first connection layer is in the same pattern layer as the scan lines and intersects with the scan lines. The first connection layer at an intersecting position with the scan line is disconnected. The second connection layer is in the same pattern layer as the data lines and crosses the scan lines.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: December 3, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Xing Ming, Zhiyuan Shen
  • Patent number: 10488714
    Abstract: The present disclosure discloses an array substrate and a display device. A pixel electrode of the array substrate includes a first subpixel electrode and a second subpixel electrode, and a storage capacitor includes a first storage capacitor and a second storage capacitor, wherein the first storage capacitor is configured to maintain a voltage difference between the first subpixel electrode and the common electrode line, the second storage capacitor is configured to maintain a voltage difference between the second subpixel electrode and the common electrode line, and the first storage capacitor and the second storage capacitor have different capacitances.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: November 26, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pan Li, Wenbo Li, Hongfei Cheng
  • Patent number: 10488726
    Abstract: A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, a dual passivation layer disposed between the first substrate and the second substrate. The dual passivation layer includes a first passivation layer and a second passivation layer. A refractive index of the first passivation layer is different from a refractive index of the second passivation layer.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: November 26, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jang-Kun Song, Yeon-Sik Ham, Kang-Woo Kim, Yeon-Mun Jeon, Jeong Hyun Lee
  • Patent number: 10481442
    Abstract: A liquid crystal display device includes a TFT substrate and a counter substrate and a liquid crystal layer sandwiched therebetween. A scanning line, a video signal line, a thin film transistor connected to the scanning line and the video signal line, a pixel electrode connected to the thin film transistor, and a counter electrode are formed on the TFT substrate, and a columnar spacer formed on the counter substrate. The pixel and counter electrodes are transparent, and the liquid crystal layer is controlled by an electric field generated between the pixel and counter electrodes. The counter electrode contacts with a metal line having a first part which is extended in parallel with the scanning line and a second part which is extended in parallel with the video signal line, a width of the first part of the metal line being narrower than a width of the scanning line.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: November 19, 2019
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hidehiro Sonoda, Chikae Matsui, Noboru Kunimatsu
  • Patent number: 10481451
    Abstract: A pixel structure is provided. The pixel structure has a first substrate, a scan line, a data line, an active device, a pixel electrode, and a conductive strip-shaped pattern. The scan line and the data line are located on the first substrate. The active device is electrically connected to the scan lines and the data line. The pixel electrode is electrically connected to the active device. The conductive strip-shaped pattern is correspondingly disposed over the data line. The conductive strip-shaped pattern has an opening at least partially overlapped with the data line in a vertical projection at the first substrate.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: November 19, 2019
    Assignee: Au Optronics Corporation
    Inventors: Jia-Hong Wang, Ya-Ling Hsu
  • Patent number: 10481455
    Abstract: A liquid crystal display device includes: a plurality of scan lines and signal lines on one of a pair of substrates arranged to be opposed to each other with a liquid crystal layer sandwiched therebetween, the scan lines and signal lines extending in different directions; and an orientation film, pixel electrode, insulating layer and common electrode, the orientation film being rubbed in a rubbing direction having a given inclination with respect to a pixel arrangement direction. The pixel electrode is partitioned by the scan lines and signal lines and has subpixels made up of first and second regions. The first region has a plurality of slit-shaped openings having a given inclination in a first direction with respect to the rubbing direction. The second region has a plurality of slit-shaped openings having a given inclination in a second direction with respect to the rubbing direction.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: November 19, 2019
    Assignee: Japan Display Inc.
    Inventors: Daisuke Ito, Hideyuki Omori
  • Patent number: 10473988
    Abstract: A display device includes an electrode layer and a liquid crystal layer. The electrode layer has a first electrode and a second electrode. The second electrode is opposed to the first electrode and having a plurality of openings extending in a same extending direction. The liquid crystal layer is disposed on the electrode layer. The liquid crystal molecules of the liquid crystal layer in a region in proximity to one side of the opening and liquid crystal molecules of the liquid crystal layer in a region in proximity to another side of the opening, the sides of the opening being opposed to each other in a width direction of the opening, are rotated in opposite directions from each other and aligned.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: November 12, 2019
    Assignee: Japan Display Inc.
    Inventor: Toshiharu Matsushima
  • Patent number: 10466557
    Abstract: An array substrate, manufacturing method thereof, and display device. The array substrate comprises a subpixel unit, and the subpixel unit comprises: a first transparent common electrode a pixel electrode disposed over and insulated from the first transparent common electrode, wherein an orthographic projection of the first transparent common electrode on a surface where the pixel electrode is located has an overlapping portion with the pixel electrode; and a second transparent common electrode disposed over and insulated from the pixel electrode.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: November 5, 2019
    Assignees: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Co., Ltd.
    Inventors: Chuanbao Chen, Juncai Ma
  • Patent number: 10459279
    Abstract: An array substrate, a method for manufacturing the same, a display panel and a display device are disclosed, for reducing the amount of harmful blue light in a backlight without influencing the display quality of the product. The array substrate comprises a light-transmission region and a non-transmission region, and the light-transmission region is provided with a blue light filtering layer configured to absorb blue light with a wavelength smaller than 450 nm (FIG. 1).
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: October 29, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Liangliang Jiang, Zhou Rui, Lei Guo
  • Patent number: 10461070
    Abstract: Provided is a display apparatus having improved display quality by reducing defects due to static electricity. The display apparatus includes: a substrate including a display area and a peripheral area surrounding the display area, the display area including a main area and a first protruding area and a second protruding area extending from the main area and protruding toward the peripheral area in a first direction, the second protruding area being spaced apart from the first protruding area in a second direction that intersects the first direction, a groove portion is disposed between the first protruding area and the second protruding area; a display unit including a first light emitter and a second light emitter; a first load matching part electrically connected to the first light emitter; and a second load matching part electrically connected to the second light emitter.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: October 29, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeonghun Kim, Minwoo Byun, Byeongguk Jeon, Hokyoon Kwon, Keunsoo Lee
  • Patent number: 10452184
    Abstract: According to one embodiment, a display device includes first and second substrate units, a display function layer, and a drive element. The first substrate unit includes a first substrate, a display unit, and a control circuit unit. The first substrate has a first surface including a display region and a peripheral region. The display unit is provided in the display region, and includes first lines, second lines, switch elements, pixel electrodes, and third lines. The control circuit unit is provided in the peripheral region, and includes a first circuit unit including a third line connection line, and a third line switch. The second substrate unit includes a second substrate and fourth lines. The display function layer is provided between the first and second substrate units. The drive element is provided on the peripheral region. The first circuit unit is partially disposed between the drive element and the first substrate.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: October 22, 2019
    Assignee: Japan Display Inc.
    Inventors: Hiroshi Mizuhashi, Toshiaki Fukushima, Gen Koide, Yoshiyuki Kii
  • Patent number: 10452190
    Abstract: Embodiments of the present disclosure relate to the field of display technologies, and particularly, to an array substrate and methods of manufacturing and driving the same. With the embodiments of the present disclosure, undesirable phenomenon, e.g. color mixing and so on is avoid in a display device having the array substrate while simplifying the manufacture process of the array substrate. The array substrate comprises a substrate, thin-film transistors, pixel electrodes and a common electrode on the substrate, a plurality of leading wires and a color filter layer; wherein the common electrode comprises a plurality of common electrode blocks reusable as self-capacitance electrodes, and each of the leading wires has one end electrically connected to one of the common electrode blocks and the other end electrically connected to a touch integrated circuit. The array substrate according to the embodiments of the present disclosure is used in the display device.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: October 22, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Xiangdong Wei, Jing Liu, Xiang Feng, Yun Qiu
  • Patent number: 10446693
    Abstract: By using a conductive layer including Cu as a long lead wiring, increase in wiring resistance is suppressed. Further, the conductive layer including Cu is provided in such a manner that it does not overlap with the oxide semiconductor layer in which a channel region of a TFT is formed, and is surrounded by insulating layers including silicon nitride, whereby diffusion of Cu can be prevented; thus, a highly reliable semiconductor device can be manufactured. Specifically, a display device which is one embodiment of a semiconductor device can have high display quality and operate stably even when the size or definition thereof is increased.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: October 15, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Masahiro Takahashi, Hideyuki Kishida, Akiharu Miyanaga, Junpei Sugao, Hideki Uochi, Yasuo Nakamura
  • Patent number: 10446587
    Abstract: A display substrate includes a switching element disposed in a display region that is electrically connected to a gate line, a data line, and a first electrode in a peripheral region adjacent to the display region that includes a first conductive pattern formed from a first conductive layer that includes a same material as the gate line, a first line connecting part disposed in the peripheral region that includes the first conductive pattern, a second conductive pattern that overlaps the first conductive pattern and formed, an organic layer that partially exposes the second conductive pattern, and a third conductive pattern electrically connected to the second conductive pattern that contacts the partially exposed second conductive pattern, and a fourth conductive pattern that electrically connects the first conductive pattern of the pad part and the third conductive pattern of the first line connecting part.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: October 15, 2019
    Assignee: SAMSUNGG DISPLAY CO., LTD.
    Inventors: Ji-Sun Kim, Ji-Hyun Kim, Shin-Il Choi, Yeong-Keun Kwon
  • Patent number: 10437116
    Abstract: The liquid crystal display device includes: a TFT substrate including scanning lines extending in a first direction and being arranged in a second direction, video signal lines extending in the second direction and being arranged in the first direction, pixel electrodes arranged in regions surrounded by the scanning lines and the video signal lines, and common electrodes formed with an insulating film arranged between the common electrodes and the pixel electrodes; a counter substrate opposed to the TFT substrate; and a liquid crystal. The first common electrode extends between the first and second scanning lines in the first direction, and the second common electrode extends between the second and third scanning lines in the first direction. The first and second common electrodes are electrically connected by a bridge. The bridge covers the first video signal line without covering the second video signal line, when seen in a plan view.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: October 8, 2019
    Assignee: Japan Display Inc.
    Inventor: Motoharu Miyamoto
  • Patent number: 10437115
    Abstract: A liquid crystal display device includes a display-device substrate having a transparent electrode; an array substrate having a pixel electrode, a source line, a gate line, and a conductive line; a liquid crystal layer sandwiched between the display-device substrate and initially aligned vertically; and a controller that drives the liquid crystal layer by supplying an image signal to the source line and applying a liquid crystal driving voltage across the transparent electrode and the pixel electrode in synchronization with the image signal, the controller applying a voltage to the conductive line after the liquid crystal driving voltage is applied to the pixel electrode and while the liquid crystal driving voltage is not applied to the pixel electrode, thereby generating an electric field oriented in a direction intersecting the source line in a plan view between the conductive lines.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: October 8, 2019
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Yukihiro Kimura, Kenzo Fukuyoshi
  • Patent number: 10429704
    Abstract: A display device with low power consumption and high display quality is provided. The display device includes first and second electrodes. One pixel includes a region in which the distance between the first electrode and the second electrode is constant and a region in which the distance varies; this structure allows the switching operation of liquid crystal to start in a predetermined region, thereby improving the stability of the operation of the liquid crystal. A pixel region is divided into two regions in which the liquid crystals are aligned in the two respective directions when switching is performed, whereby viewing angle characteristics are improved. Furthermore, the supply of a potential to a third electrode suppresses alignment disorder of the liquid crystal and improves the display quality.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: October 1, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yusuke Kubota, Daisuke Kubota
  • Patent number: 10423029
    Abstract: A method for manufacturing a display device can include forming a thin-film transistor (TFT) array substrate including data lines, gate lines, TFTs at intersections of the data lines and the gate lines, common electrodes, common lines disposed parallel to the gate lines, and connected to the common electrodes, a protective layer on the gates lines, the common lines and the data lines, and a first protrusion protruding from the protective layer; and forming a color filter array substrate including first, second and third color filter layers corresponding to first, second and third sub-pixels, respectively, in which portions of the first, second and third color filer layers overlap each other in an area between two adjacent rows of sub-pixels to form a second protrusion, and the second protrusion overlaps with both one common line among the plurality of common lines and one gate line among the gate lines that is adjacent to the one common line, and the area between the two adjacent rows of sub-pixels is configu
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: September 24, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Woo-Jung Byun
  • Patent number: 10423043
    Abstract: The present invention relates to a liquid crystal display including: a lower electrode including a unit pixel electrode; an upper electrode including an upper unit electrode facing the unit pixel electrode; and a liquid crystal layer between the lower electrode and the upper electrode and including a plurality of liquid crystal molecules aligned approximately perpendicular to the surfaces of the lower electrode and the upper electrode in the absence of an electric field, wherein the unit pixel electrode includes a stem forming a boundary between a plurality of sub-regions and a plurality of minute branches extending in different directions in two different sub-regions, the upper unit electrode includes an opening facing the stem and extending parallel to the stem, any alignment aid to pretilt the liquid crystal molecules is absent, and a length of the minute branches is equal to or less than about 53 ?m.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: September 24, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Wi Ryu, Cheol Shin, Hak Sun Chang, Ki Chul Shin, Jae-Soo Jang, Ka Eun Kim, Ho Kil Oh, Se Hyun Lee, Hyo Ju Jung, Sang Hyeon Song, Sang Jin Jeon
  • Patent number: 10416506
    Abstract: The present application discloses an array substrate, including a substrate; a thin film transistor disposed on the substrate; a pixel electrode disposed on the substrate and is in contact with a drain electrode of the thin film transistor; a common electrode disposed above the pixel electrode and is electrically insulated from the pixel electrode, and the common electrode has a plurality of first through holes. The present application further discloses a method of fabricating the array substrate. The array substrate and the fabricating method of the present application can reduce the parasitic capacitance between the common electrode and the pixel electrode, and can accelerate the release of the aggregated ions. In addition, the present application, by forming a stereoscopic electrode structure, the lateral electric field can be effectively enhanced, so that the driving voltage can be reduced, the display transmittance can be improved, and the power consumption can be reduced.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: September 17, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Xingwu Chen, Lixuan Chen
  • Patent number: 10416516
    Abstract: A liquid crystal display panel includes an array substrate, a color filter substrate, and a liquid crystal layer interposed therebetween. The array substrate includes scan lines and data lines insulated from the scan lines and arranged mutually perpendicular to each other to define pixels that are arranged in an array. Each pixel includes a thin-film transistor and a pixel electrode connected to the thin-film transistor. The thin-film transistor is connected to one of the data lines and one of the scan lines corresponding thereto. A separation zone is formed between adjacent ones of the pixel electrodes. The thin-film transistor and the scan line are arranged in the separation zone. The pixels further comprise a transparent wiring line arranged along an outer circumference of the scan line. The transparent wiring line is supplied with an electrical voltage that is a common voltage of the array substrate.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: September 17, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Liyang An