Interdigited (comb-shaped) Electrodes Patents (Class 349/141)
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Patent number: 11640084Abstract: Provided is a horizontal electric field mode reflective or transflective liquid crystal display device that achieves an increased reflectance. The liquid crystal display device sequentially includes: a first substrate; a first alignment layer; a liquid crystal layer containing liquid crystal molecules horizontally aligned with no voltage applied; a second alignment layer; and a second substrate including a pixel electrode and a common electrode, the liquid crystal display device further including a reflective layer disposed in at least part of a pixel at a position closer to a back surface than the first alignment layer, the liquid crystal layer, the second alignment layer, the pixel electrode, and the common electrode, at least one alignment layer of the first alignment layer or the second alignment layer having an azimuthal anchoring energy value of less than 1×10?4 J/m2.Type: GrantFiled: July 15, 2021Date of Patent: May 2, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Hiroaki Asagi, Kiyoshi Minoura
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Patent number: 11630357Abstract: A display device is provided. The display device includes a first substrate, a second substrate, a patterned electrode, a switch unit, and a liquid-crystal layer doped with a chiral dopant. The second substrate is disposed corresponding to the first substrate, and the patterned electrode is disposed on the first substrate or the second substrate. The switch unit is disposed adjacent to the patterned electrode. The liquid-crystal layer doped with the chiral dopant is disposed between the first substrate and the second substrate. In addition, an edge of the patterned electrode that is closest to the switch unit has an open area and a closed area, wherein the open area is adjacent to the closed area, and the patterned electrode extends a connecting portion out from the closed area and the connecting portion is connected to the switch unit.Type: GrantFiled: September 13, 2021Date of Patent: April 18, 2023Assignee: INNOLUX CORPORATIONInventors: Yi-Hsin Chen, Ying-Jen Chen
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Patent number: 11620009Abstract: A touch sensing type liquid crystal display device includes an array substrate includes a first substrate, a common electrode, a pixel electrode, and a touch sensing unit; a color filter substrate including a second substrate and facing the array substrate; an anti-static layer on an outer side of the second substrate and including an organic material and a carbon nano-tube; and a liquid crystal layer between the first substrate and an inner side of the second substrate.Type: GrantFiled: May 6, 2021Date of Patent: April 4, 2023Assignee: LG Display Co., Ltd.Inventors: Kum-Mi Oh, Jin-Wuk Kim, Sung-Hee Kim
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Patent number: 11600171Abstract: A crosswalk warning light is provided, the crosswalk warning light comprising: a housing which includes a front, the front including a first end and a second end, at least one end including at least one slot, a face with at least one aperture, the aperture defining an outside edge, a step with a riser, the step including or housing at least one optical element, the riser adjacent the outside edge, a top shaped to conform to the front, a bottom shaped to conform to the top, and a back; and at least one bank of light emitting diode (LED) lights positioned such that a portion of the bank of light emitting diodes is aligned with the aperture and a portion of the bank of light emitting diodes is aligned with the step, wherein the at least one optical element is configured to deviate an incident optical path by ninety degrees to provide a deviated optical path that is aligned with the at least one slot.Type: GrantFiled: November 29, 2021Date of Patent: March 7, 2023Inventors: Gregory Miller, Robert Magyar
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Patent number: 11561437Abstract: An optical element is provided. The optical element includes a positive-C film including a liquid crystal (“LC”) layer. The optical element also includes a positive-A film. The optical element also includes a negative biaxial retardation film disposed between the positive-A film and the positive-C film.Type: GrantFiled: January 30, 2021Date of Patent: January 24, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Afsoon Jamali, Yingfei Jiang
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Patent number: 11550191Abstract: A display device is provided and includes first and second substrates; a liquid crystal layer filled between the first and second substrates; a counter electrode pattern formed on the first substrate; scanning lines extending in a first direction; signal lines; and a first pixel electrode pattern and a second pixel electrode pattern formed on the first substrate, wherein the first pixel electrode pattern and the second pixel electrode pattern are located in line symmetry with respect to a first scanning line of the scanning lines.Type: GrantFiled: September 27, 2019Date of Patent: January 10, 2023Assignee: Japan Display Inc.Inventors: Yoshihiro Sakurai, Hironao Tanaka, Hidemasa Yamaguchi
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Patent number: 11551631Abstract: A display panel includes a first display region and a second display region. The light transmittance of the first display region is greater than the light transmittance of the second display region. The first display region includes a plurality of first sub-pixels. At least one of the first sub-pixels includes an electrode group. The electrode group includes a first electrode and a second electrode. In the first direction, the orthographic projection of the first electrode at least partially overlaps the orthographic projection of the second electrode. The first direction is parallel to the light-emitting surface of the display panel. In the stage of capturing, the voltage difference between the first electrode and the second electrode is greater than zero volts. The phase of a voltage difference of the first electrode to the second electrode is reversed as a frame is reversed.Type: GrantFiled: February 25, 2022Date of Patent: January 10, 2023Assignee: Xiamen Tianma Microelectronics Co., Ltd.Inventors: Linyan Guan, Hailiang Wang, Yaying Li, Weipeng Wang, Suxia Xu, Junyi Li
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Patent number: 11537251Abstract: A display device is provided and includes first substrate comprising first base member, first terminal and pixel electrodes; second substrate comprising second base member comprising first surface opposing and spaced apart from first terminal and second surface on an opposite side to first surface, second terminal located on side of second surface, and first hole which penetrates from first surface to second surface and second terminal; organic insulating layer provided between first terminal and second base member and adjacent to display area, organic insulating layer having second hole beneath first hole; and connecting material provided on first and second hole to electrically connect first terminal and second terminal, wherein organic insulating layer includes sealant attaches first substrate and second substrate, diameter of second hole is greater than diameter of first hole, and at least one of first terminal and second terminal including oxide electrode in contact with connecting material.Type: GrantFiled: July 24, 2020Date of Patent: December 27, 2022Assignee: Japan Display Inc.Inventors: Shuichi Osawa, Shoji Hinata, Yoshikatsu Imazeki, Yoichi Kamijo, Yoshihiro Watanabe
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Patent number: 11532646Abstract: A display panel, a display device, and a display system are provided. The display panel includes a plurality of conductive portions. Each of the conductive portions is respectively disposed between corresponding metal layers to be electrically connected in the display panel, and is used to electrically connect with the metal layers to be electrically connected. At least two conductive portions are provided between any two of the metal layers to be electrically connected. The at least two conductive portions are used for an electrical connection to realize multi-point connection of different metal layers, which improves a reliability in a conversion of different metal layers.Type: GrantFiled: September 4, 2020Date of Patent: December 20, 2022Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Ruixi Wu
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Patent number: 11513398Abstract: A display panel is provided. The display panel includes: a first substrate structure and a second substrate structure. The first substrate structure has an overlapping region and two protruding regions between which the overlapping region is disposed. The second substrate structure is disposed opposite to the first substrate structure and includes a main spacer and a sub spacer. The main spacer overlaps the overlapping region of the first substrate structure. The first height difference between the overlapping region and one of the two protruding regions is greater than zero and less than the thickness of the sub spacer.Type: GrantFiled: April 20, 2021Date of Patent: November 29, 2022Assignee: Innolux CorporationInventors: Luca Hung, Lynn Kuo
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Patent number: 11500252Abstract: 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: GrantFiled: August 23, 2021Date of Patent: November 15, 2022Assignee: Japan Display Inc.Inventor: Motoharu Miyamoto
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Patent number: 11493822Abstract: The invention relates to a diffractive optical element which comprises a first substrate and a second substrate, between which a liquid crystal layer is provided. The diffractive optical element also has strip-shaped electrodes on the first substrate and strip-shaped electrodes on the second substrate. The electrodes on the first substrate are arranged at an angle of greater than 50° relative to the electrodes on the second substrate. Furthermore, the electrodes on the first substrate and the electrodes on the second substrate are controllable in such a way that a defined out-of-plane field can be produced in a respective overlapping area of the electrodes on the first substrate with the electrodes on the second substrate. The diffractive optical element can be used in a display device for displaying preferably three-dimensional scenes.Type: GrantFiled: May 28, 2019Date of Patent: November 8, 2022Assignee: SEEREAL TECHNOLOGIES S.A.Inventors: Bo Kroll, Norbert Leister
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Patent number: 11489032Abstract: The Embodiments of the present disclosure relate to a display panel and a display device. The display panel includes a plurality of wirings extending parallel to a display surface of the display panel, and a plurality of light shielding portions extending parallel to the display surface, wherein projections of at least two wirings of the plurality of wirings with parallel extending directions on the display surface are within a projection of a same light shielding portion on the display surface, wherein at least a portion of each light-shielding portion has a curved profile along the extending direction.Type: GrantFiled: April 3, 2019Date of Patent: November 1, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Mingche Hsieh
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Patent number: 11480837Abstract: An embodiment of the present disclosure provides an array substrate, a display panel, and a display device, including a substrate, a data line located above the substrate, and a shielding member located on a side, away from the substrate, of the data line, the shielding member includes a conductive screening portion, an orthographic projection of the conductive screening portion on the substrate partially covering an orthographic projection of the data line on the substrate, or the shielding member includes a filling body, an orthographic projection of the filling body on the substrate covering an orthographic projection of the data line on the substrate, and the filling body protruding outward from a surface of the substrate in a direction away from the substrate.Type: GrantFiled: July 23, 2018Date of Patent: October 25, 2022Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.Inventors: Xingxing Song, Kun Yu, Zhongzhen Li, Dayong Yu, Biao Luo, Wenjie Wang
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Patent number: 11480831Abstract: 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: GrantFiled: March 22, 2021Date of Patent: October 25, 2022Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co.. Ltd.Inventors: Hidehiro Sonoda, Chikae Matsui, Noboru Kunimatsu
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Patent number: 11454850Abstract: A pixel electrode and a display panel are provided. The pixel electrode includes a sub-pixel region and a main pixel region arranged at intervals. The sub-pixel region includes a first sub-pixel region and a second sub-pixel region, wherein a receiving chamber is formed between the first sub-pixel region and the second sub-pixel region, and the main pixel region is disposed in the receiving chamber.Type: GrantFiled: March 19, 2020Date of Patent: September 27, 2022Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yoonsung Um, Kaili Qu
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Patent number: 11442319Abstract: The present application discloses display substrate having a base substrate; an insulating layer on the base substrate; and an electrode layer on a side of the insulating layer distal to the base substrate and having a plurality of electrode blocks. The insulating layer has a first side distal to the base substrate and a second side opposite to the first side and proximal to the base substrate. Each of the plurality of electrode blocks has a third side distal to the base substrate and a fourth side opposite to the third side and proximal to the base substrate. The first side of the insulating layer in the inter-electrode block region has a first height relative to a surface of the base substrate greater than a second height of the fourth side of an adjacent electrode of the plurality of electrode blocks relative to the surface of the base substrate.Type: GrantFiled: February 2, 2018Date of Patent: September 13, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Feng Zhang, Zhijun Lv, Wenqu Liu, Liwen Dong, Shizheng Zhang, Ning Dang
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Patent number: 11435608Abstract: Provided are a display substrate and a control method therefor, a display panel, and a display device. The display substrate is disposed in the display panel and includes a first substrate and multiple mode switching electrodes and multiple data lines disposed on the first substrate; wherein, the mode switching electrode is disposed on a side of the data line away from the first substrate and insulated from the data line, and an orthographic projection of the mode switching electrode on the first substrate covers part of an orthographic projection of the data line on the first substrate; and the mode switching electrode is configured to switch display modes of the display panel, wherein the display modes include a normal mode and a privacy mode.Type: GrantFiled: August 24, 2020Date of Patent: September 6, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.Inventors: Qi Zheng, Hongliang Yuan, Xiaojuan Wu, Yao Bl, Zhiqiang Zhao, Xuan Zhong, Zhangxiang Cheng, Jiaxing Wang, Donghua Zhang, Lanjun Guo
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Patent number: 11428974Abstract: To provide a thin touch panel, a touch panel having a simple structure, a touch panel which can be easily incorporated into an electronic device, or a touch panel with a small number of components. The touch panel includes pixel electrodes arranged in a matrix, a plurality of signal lines, a plurality of scan lines, a plurality of first wirings extending in a direction parallel to the signal lines, and a plurality of second wirings extending in a direction parallel to the scan line. Part of the first wiring and part of the second wiring function as a pair of electrodes included in a touch sensor. The first wiring and the second wiring each have a stripe shape or form a mesh shape and are each provided between two adjacent pixel electrodes in a plan view.Type: GrantFiled: March 23, 2020Date of Patent: August 30, 2022Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hideaki Shishido, Daisuke Kubota, Yusuke Kubota
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Patent number: 11415842Abstract: The present disclosure provides a pixel electrode and a display panel. The pixel electrode includes a trunk portion including a first trunk and a second trunk and branch portions. The first trunk and the second trunk are pixel electrode areas. An intersection point of the first trunk and the second trunk is a central point of the trunk portion. the first trunk intersects with the second trunk to form four equal pixel electrode areas and the four pixel areas are four branch portions. Each of the four branch portions includes a plurality of branches. An end of each branch or an end of an extension line thereof intersects with the first trunk or an extension line thereof. An other end of each branch or an other end of the extension line thereof intersects with the second trunk or an extension line thereof.Type: GrantFiled: November 23, 2018Date of Patent: August 16, 2022Assignees: CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITEDInventor: Hongyan Chang
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Patent number: 11409028Abstract: A layered body including a polarizer material film that is a product of stretching in one or more directions, and a substrate film provided on the polarizer material film, the substrate film being a product of stretching in one or more directions, wherein a stretching ratio X of the polarizer material film is 1.5 or more and 5.5 or less, a thickness T2 is 20 ?m or less, the thickness T2 being a thickness of the polarizer material film as a result of free end uniaxial stretching of the layered body at a stretching ratio 6.0/X, an angle ?2 formed by a stretching direction of the polarizer material film and a stretching direction of the substrate film is less than 1°, and a stretching ratio Y of the substrate film is smaller than the stretching ratio X of the polarizer material film.Type: GrantFiled: July 23, 2018Date of Patent: August 9, 2022Assignee: ZEON CORPORATIONInventors: Hiromu Mashima, Takamichi Inomata
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Patent number: 11397358Abstract: The present application discloses display substrate having a base substrate; an insulating layer on the base substrate; and an electrode layer on a side of the insulating layer distal to the base substrate and having a plurality of electrode blocks. The insulating layer has a first side distal to the base substrate and a second side opposite to the first side and proximal to the base substrate. Each of the plurality of electrode blocks has a third side distal to the base substrate and a fourth side opposite to the third side and proximal to the base substrate. The first side of the insulating layer in the inter-electrode block region has a first height relative to a surface of the base substrate greater than a second height of the fourth side of an adjacent electrode of the plurality of electrode blocks relative to the surface of the base substrate.Type: GrantFiled: February 2, 2018Date of Patent: July 26, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Feng Zhang, Zhijun Lv, Wenqu Liu, Liwen Dong, Shizheng Zhang, Ning Dang
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Patent number: 11391978Abstract: A detection device is provided and includes a first substrate; a plurality of detection electrodes arranged in a first direction and a second direction intersecting the first direction, and located in a display region; a second substrate facing the first substrate; a first conductive layer provided in a peripheral region located outside the display region in planar view, and including a plurality of wires forming a mesh-like pattern; and a second conductive layer electrically coupled to the first conductive layer, the second substrate being located between the second conductive layer and the first substrate, wherein the first conductive layer is arranged to be part of an electrically connected loop around the display region.Type: GrantFiled: April 5, 2021Date of Patent: July 19, 2022Assignee: Japan Display Inc.Inventors: Hayato Kurasawa, Koji Ishizaki
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Patent number: 11366362Abstract: A pixel electrode, an array substrate, and a display device are disclosed. The pixel electrode includes electrode regions and at least one hollow region distributed between the electrode regions. The hollow region includes a main body part and two ending parts located at two ends of the main body part, at least one ending part is an inflated portion having a width, and a width of the main body part is smaller than the width of the inflated portion. By using the present disclosure, the transparence is improved and the contrast and the power consumption are improved accordingly.Type: GrantFiled: August 22, 2019Date of Patent: June 21, 2022Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Shidi Xiao
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Patent number: 11347107Abstract: The present disclosure provides an array substrate and a method for manufacturing the same, and a display device. The array substrate includes a plurality of pixel units arranged in a matrix, each the pixel unit includes a plurality of pixel regions, each pixel region is provided with a display electrode having a slit; a plurality of data lines, each of the data lines includes a plurality of data line segments, any two adjacent data line segments are electrically coupled to each other; in each of the pixel units, each of a part of the pixel regions has a display electrode whose slit is parallel to a data line segment adjacent to this display electrode in the data lines; each of another part of the pixel regions has a display electrode whose slit is non-parallel to a data line segment adjacent to this display electrode in the data lines.Type: GrantFiled: October 18, 2018Date of Patent: May 31, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Chunping Long, Yong Qiao, Xinyin Wu
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Patent number: 11341924Abstract: It is an object of the present invention to provide a display device in which problems such as an increase of power consumption and increase of a load of when light is emitted are reduced by using a method for realizing pseudo impulsive driving by inserting an dark image, and a driving method thereof. A display device which displays a gray scale by dividing one frame period into a plurality of subframe periods, where one frame period is divided into at least a first subframe period and a second subframe period; and when luminance in the first subframe period to display the maximum gray scale is Lmax1 and luminance in the second subframe period to display the maximum gray scale is Lmax2, (½) Lmax2<Lmax1<( 9/10) Lmax2 is satisfied in the one frame period, is provided.Type: GrantFiled: July 9, 2020Date of Patent: May 24, 2022Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yasunori Yoshida, Hajime Kimura
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Patent number: 11333814Abstract: A layered body including a polarizer material film that is a product of stretching in one or more directions, and a substrate film provided on the polarizer material film, the substrate film being a product of stretching in one or more directions, wherein a stretching ratio X of the polarizer material film is 1.5 or more and 5.5 or less, a thickness T2 is 20 ?m or less, the thickness T2 being a thickness of the polarizer material film as a result of free end uniaxial stretching of the layered body at a stretching ratio 6.0/X, an angle ?2 formed by a stretching direction of the polarizer material film and a stretching direction of the substrate film is less than 1°, and a stretching ratio Y of the substrate film is smaller than the stretching ratio X of the polarizer material film.Type: GrantFiled: July 23, 2018Date of Patent: May 17, 2022Assignee: ZEON CORPORATIONInventors: Hiromu Mashima, Takamichi Inomata
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Patent number: 11327377Abstract: A display device includes: a pixel electrode; and a storage electrode line surrounding the pixel electrode. The storage electrode line includes a first horizontal portion at a lower portion of the pixel electrode and extending in a first direction, a second horizontal portion at an upper portion of the pixel electrode and extending in the first direction, a first vertical portion extending toward the second horizontal portion from the first horizontal portion, and a second vertical portion extending toward the first horizontal portion from the second horizontal portion. The first horizontal portion and the second horizontal portion are electrically connected to each other and receive a same voltage, and the first vertical portion is not directly connected to the second horizontal portion, and/or the second vertical portion is not directly connected to the first horizontal portion.Type: GrantFiled: October 14, 2019Date of Patent: May 10, 2022Assignee: Samsung Display Co., Ltd.Inventor: Yoo Mi Ra
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Patent number: 11296168Abstract: The present invention provides a display panel. The display panel includes at least three sub-pixel regions. The sub-pixel regions are arranged along a direction of a scan line. A channel region of each driving TFT in the same sub-pixel region has a same width-to-length ratio. Along a direction from a signal input end to a signal output end of the scan line, the width-to-length ratio of the channel region of each driving TFT of any of the sub-pixel regions is smaller than that of a previous one of the sub-pixel regions.Type: GrantFiled: November 4, 2019Date of Patent: April 5, 2022Inventors: Kuo Gao, Baixiang Han
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Patent number: 11282910Abstract: The present disclosure provides an array substrate, a manufacturing method thereof, and a display device. The array substrate includes: a base substrate, a gate on the base substrate, a conductive wire above the base substrate, a first insulating layer on the gate and the base substrate, and a shielding structure on the base substrate. A first orthographic projection of the conductive wire on the base substrate is spaced apart from a second orthographic projection of the gate on the base substrate. A third orthographic projection of the shielding structure on the base substrate is located between the first orthographic projection and the second orthographic projection. The shielding structure is used to at least partially shield a crosstalk of the conductive wire to the gate.Type: GrantFiled: January 23, 2019Date of Patent: March 22, 2022Assignee: BOE Technology Group Co., Ltd.Inventors: Li Wang, Libin Liu
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Patent number: 11281040Abstract: A display device is provided and includes first substrate; gate lines extending on first substrate; data lines extending in a direction crossing gate lines; first electrode on first substrate; insulating film on first electrode; second electrode on insulating film, facing first electrode and including connection electrode arranged in parallel with data lines and comb electrodes arranged in parallel with gate lines and slits arranged between comb electrodes; second substrate facing first substrate; liquid crystal layer provided between first and second substrates; and light shielding portion extending along extending direction of gate lines, wherein comb electrodes connected to connection electrode, length of each of slits in extending direction is longer than width of slits in direction orthogonal to extending direction, and in plan view, one of comb electrodes overlaps with light shielding portion.Type: GrantFiled: September 3, 2020Date of Patent: March 22, 2022Assignee: Japan Display Inc.Inventor: Toshiharu Matsushima
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Patent number: 11281060Abstract: According to one embodiment, a display device includes a first common electrode, a second common electrode spaced apart from the first common electrode, a first signal line overlapping the first common electrode and the second common electrode, a first metal line overlapping the first signal line and the first common electrode, and a second metal line overlapping the first signal line and the second common electrode and spaced apart from the first metal line. The first metal line includes an extension portion extending between the first common electrode and the second common electrode.Type: GrantFiled: July 2, 2020Date of Patent: March 22, 2022Assignee: Japan Display Inc.Inventor: Masateru Morimoto
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Patent number: 11256152Abstract: 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: GrantFiled: November 11, 2020Date of Patent: February 22, 2022Assignee: Japan Display Inc.Inventors: Daisuke Ito, Hideyuki Omori
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Patent number: 11256147Abstract: An array substrate and a display panel are provided. Each of sub-pixels is provided with a plurality of display domains. A first electrode retaining wall and a second electrode retaining wall are respectively disposed on both sides of the display domain, and the first electrode retaining wall is electrically connected to pixel electrodes. The second electrode retaining wall is electrically connected to common electrodes, and a horizontal electric field is generated between the first electrode retaining wall and the second electrode retaining wall, such that liquid crystal units in the display domain are aligned horizontally, thereby improving transmittance of the sub-pixels.Type: GrantFiled: November 8, 2019Date of Patent: February 22, 2022Inventor: Jiangchuan Chen
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Patent number: 11231624Abstract: A pixel structure, a display panel and a display device are provided. The pixel structure includes a first electrode layer and a second electrode layer. The first electrode layer includes a first plate-shaped electrode and first strip-shaped electrodes; the first strip-shaped electrodes include at least two first strip-shaped structures, and each adjacent two of the first strip-shaped structures have a first slit formed therebetween; the second electrode layer includes a second plate-shaped electrode and second strip-shaped electrodes, wherein the second strip-shaped electrodes include at least two second strip-shaped structures, and each adjacent two of the second strip-shaped structures have a second slit formed therebetween.Type: GrantFiled: February 7, 2018Date of Patent: January 25, 2022Assignee: HKC CORPORATION LIMITEDInventor: Huai Liang He
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Patent number: 11226520Abstract: A display substrate includes: a plurality of sub-pixel regions at a first base substrate, each of the plurality of sub-pixel regions including a light-blocking region and aperture regions located at opposing sides of the light-blocking region; and a first transparent electrode and a second transparent electrode within each of the plurality of sub-pixel regions, configured to drive a liquid crystal layer; wherein the first transparent electrode includes a first electrode unit located inside the light-blocking region and including a plurality of first sub-electrodes, wherein each of the plurality of first sub-electrodes are separated from two adjacent first sub-electrodes by a separation distance; and wherein the separation distance between two adjacent first sub-electrodes nearest to a center line of the light-blocking region is smaller than the separation distance between two adjacent first sub-electrodes nearest to an edge of the light-blocking region.Type: GrantFiled: May 15, 2019Date of Patent: January 18, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Detao Zhao, Li Xiao, Lei Wang, Dongni Liu, Liang Chen, Jifeng Tan, Minghua Xuan, Xiaochuan Chen
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Patent number: 11226529Abstract: A liquid crystal display device includes an active matrix substrate, a counter substrate, and a liquid crystal layer. The active matrix substrate includes a top gate type oxide semiconductor TFT a plurality of gate wiring lines a plurality of source and an interlayer insulating layer The counter substrate includes a plurality of columnar spacers provided on a second substrate. Each columnar spacer is disposed in an intersecting region where the gate wiring line and the source wiring line intersect. A front face of the active matrix substrate on the liquid crystal layer side includes a plurality of first ridges overlapping the plurality of gate wiring lines and a plurality of second ridges overlapping the plurality of source wiring lines.Type: GrantFiled: July 22, 2020Date of Patent: January 18, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Keisuke Yoshida, Kohhei Tanaka
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Patent number: 11221521Abstract: Provided is a display device including an array substrate, a pixel, a dimming element, and a counter substrate. The pixel is located over the array substrate and includes a first electrode, a second electrode, and a liquid crystal layer over the first electrode and the second electrode. The dimming element is located over the array substrate and includes a third electrode, the liquid crystal layer over the third electrode, and a fourth electrode over the liquid crystal layer. The counter substrate is located over the fourth electrode.Type: GrantFiled: March 13, 2020Date of Patent: January 11, 2022Assignee: Japan Display Inc.Inventors: Shigesumi Araki, Toshiharu Matsushima, Shinichi Komura
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Patent number: 11215891Abstract: An active matrix substrate includes: a substrate; lower bus lines and upper bus lines; a lower insulating layer positioned between the lower bus lines and the upper bus lines; an oxide semiconductor TFT that are disposed in each pixel region and have an oxide semiconductor layer disposed on the lower insulating layer; pixel electrodes disposed in each pixel region; and wiring connection units arranged in a non-display region. Each wiring connection unit includes: a lower conductive layer formed using the same conductive film as the lower bus lines; an insulating layer that extends on the lower conductive layer and includes the lower insulating layer. The lower bus lines and the lower conductive layer have a first laminated structure including a metal layer and a transparent conductive layer that covers an upper surface and a side surface of the metal layer.Type: GrantFiled: May 21, 2020Date of Patent: January 4, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Hideki Kitagawa, Yoshihito Hara, Masaki Maeda, Yoshiharu Hirata, Tatsuya Kawasaki, Teruyuki Ueda, Hajime Imai, Tohru Daitoh
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Patent number: 11204531Abstract: The present disclosure provides an array substrate and a display panel, where the array substrate includes: a plurality of pixel structures, each of the pixel structures comprises at least one pixel region, wherein a signal wire is provided at a side of the pixel region, and a pixel electrode is provided in the pixel region, a shield electrode being in a same layer as the pixel electrode is provided at a side of the pixel electrode proximal to the signal wire, and the shield electrode is electrically coupled to a common electrode line. The technical solution of the present disclosure can improve the chaos in electric field at the edge of the area of the pixel region between the pixel electrode and the signal wire, and it is beneficial to reduce light leakage and increase the aperture ratio.Type: GrantFiled: October 10, 2018Date of Patent: December 21, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Chunping Long, Yong Qiao, Xinyin Wu
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Patent number: 11187943Abstract: The present application discloses a fringe field driven liquid crystal display panel. The fringe field driven liquid crystal display panel includes a first substrate having a first glass layer and a first alignment film on the first glass layer; a second substrate facing the first substrate and having a second glass layer and a second alignment film on the second glass layer; and a liquid crystal layer between the first alignment film and the second alignment film. A first main optical axis of the first glass layer and a second main optical axis of the second glass layer are non-parallel to each other and have an included angle ?. The first alignment film and the second alignment film have non-parallel rubbing angles, configured to reduce light leakage and color shift in the fringe field driven liquid crystal display panel.Type: GrantFiled: June 15, 2017Date of Patent: November 30, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jaegeon You, Xinxing Wang
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Patent number: 11175542Abstract: A liquid crystal display device is provided, which includes a thin film transistor including an oxide semiconductor layer, a first electrode layer, a second electrode layer having an opening, a light-transmitting chromatic-color resin layer between the thin film transistor and the second electrode layer, and a liquid crystal layer. One of the first electrode layer and the second electrode layer is a pixel electrode layer which is electrically connected to the thin film transistor, and the other of the first electrode layer and the second electrode layer is a common electrode layer. The light-transmitting chromatic-color resin layer is overlapped with the pixel electrode layer and the oxide semiconductor layer of the thin film transistor.Type: GrantFiled: November 12, 2020Date of Patent: November 16, 2021Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Tetsuji Ishitani, Daisuke Kubota
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Patent number: 11170725Abstract: A display device includes: a plurality of pixel electrodes having a long shape and arranged at least in a long side direction of the plurality of pixel electrodes; a common electrode overlapping the plurality of pixel electrodes with an insulating film interposed therebetween; an image wiring line extending in a short side direction of the plurality of pixel electrodes, arranged such that two of the image wiring lines are sandwiched between two pixel electrodes of the plurality of pixel electrodes, and supplying an image signal to each of the two pixel electrodes; and a common wiring line extending in the short side direction, arranged to sandwich one of the plurality of pixel electrodes together with the image wiring line in the long side direction, connected to the common electrode, and including a portion formed of a portion of the same conductive film as the image wiring line.Type: GrantFiled: April 16, 2020Date of Patent: November 9, 2021Assignee: SHARP KABUSHIKI KAISHAInventor: Masahiro Yoshida
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Patent number: 11163198Abstract: A pixel structure includes a switch element on a substrate, a first electrode, and a second electrode. The first electrode includes first to third trunk portions and first to fourth branch portions. The third trunk portion is located between the first and second trunk portions. The first branch portions are connected to the first trunk portion. The second and third branch portions are connected to the third trunk portion. The fourth branch portions are connected to the second trunk portion. The second electrode includes fourth and fifth trunk portions and the fifth to eighth branch portions. The fourth trunk portion overlaps a gap between the first and second branch portions. The fifth trunk portion overlaps a gap between the third and fourth branch portions. The fifth and sixth branch portions are connected to the fourth trunk portion. The seventh and eighth branch portions are connected to the fifth trunk portion.Type: GrantFiled: May 21, 2020Date of Patent: November 2, 2021Assignee: Au Optronics CorporationInventors: Wei-Ming Cheng, Min-Hsuan Chiu, Chien-Hsien Wu, Syuan-Ling Yang, Seok-Lyul Lee
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Patent number: 11164928Abstract: 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: GrantFiled: December 10, 2019Date of Patent: November 2, 2021Assignee: LG DISPLAY CO., LTD.Inventors: Su Ho Kim, Sang Bae Kim, Jun Tae Jeon, Yong Sam Lee
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Patent number: 11163199Abstract: According to an aspect, a liquid-crystal display device includes a first substrate, a second substrate, and a liquid-crystal layer. The first substrate includes a first electrode and a second electrode, and one of the first electrode and the second electrode is a pixel electrode provide, the first electrode includes an electrode base portion extending in a first direction and comb tooth portions extending in a second direction and protruding in a comb teeth shape from the electrode base portion with a predetermined distance interposed therebetween, and adjacent comb tooth portions include adjacent comb tooth portions having a relation in which a first long side of one comb tooth portion closest to a boundary between pixels is not parallel to a first long side of the other comb tooth portion.Type: GrantFiled: June 18, 2020Date of Patent: November 2, 2021Assignee: Japan Display Inc.Inventor: Toshiharu Matsushima
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Patent number: 11156876Abstract: A curved display device including a display substrate, an opposite substrate, a liquid crystal layer, a pixel electrode, a common electrode, and a light blocking layer. The display substrate includes pixel areas included in a display area, and is curved along a first direction. The opposite substrate faces the display substrate and is coupled to the display substrate to be curved together with the display substrate. Domains are defined in each pixel area and arranged in a second direction crossing the first direction. Liquid crystal molecules in a first set of two domains, which are sequentially arranged and disposed adjacent to the light blocking layer, are aligned toward a first side of the display area, and liquid crystal molecules in a second set of two domains facing the first set of two domains are aligned toward the second side of the display area.Type: GrantFiled: June 24, 2019Date of Patent: October 26, 2021Assignee: Samsung Display Co., Ltd.Inventors: Jeongman Son, Minwook Park, JinYoung Lee
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Patent number: 11152600Abstract: An organic light-emitting diode (OLED) display panel and a manufacture method thereof are provided, which can enable the organic material encapsulated inside to have the function of removing water and oxygen, thereby further ensuring a reliable lifespan of the OLED display panel.Type: GrantFiled: May 13, 2019Date of Patent: October 19, 2021Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Yamei Bai, Jinchang Huang, Yu Gu, Jiajia Luo, Lin Yang, Xianjie Li
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Patent number: 11150529Abstract: 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: GrantFiled: June 7, 2019Date of Patent: October 19, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jang-Kun Song, Yeon-Sik Ham, Kang-Woo Kim, Yeon-Mun Jeon, Jeong Hyun Lee
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Patent number: RE49271Abstract: A liquid crystal display includes first and second gate lines and first and second data lines, on a first substrate, a first thin film transistor connected to the first gate and data lines and including a first source and drain electrode, a second thin film transistor connected to the second gate and data lines and including a second source and drain electrode, first and second pixel electrodes contacting a portion of the first and second drain electrodes, respectively, a passivation layer on the first and second pixel electrodes and the first and second thin film transistors, and a reference electrode on a passivation layer and overlapping the first pixel electrode and the second pixel electrode. The reference electrode includes a plurality of branch electrodes. The first thin film transistor is right of the first data line and the second thin film transistor is left of the second data line.Type: GrantFiled: May 20, 2019Date of Patent: November 1, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyun-Wuk Kim, Jang-Kun Song, Seon-Ah Cho, Eun-Je Jang, You-Sik Shin