Driving Means Integral To Substrate Patents (Class 345/80)
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Patent number: 11972729Abstract: Provided are a display panel and a display device. The pixel display panel includes a pixel driver circuit and the pixel driver circuit includes: a drive module, a first initialization module, a storage module, a threshold compensation module, a data write module and a light-emitting module. At least one of a transistor of the drive module, a transistor of the first initialization module and a transistor of the threshold compensation module adopts a first double-gate structure, the transistor adopting the first double-gate structure includes a control terminal and a first bottom gate electrode, and the first bottom gate electrode is configured to access to a first modulation voltage.Type: GrantFiled: December 7, 2022Date of Patent: April 30, 2024Assignee: Xiamen Tianma Display Technology Co., Ltd.Inventor: Jianlong Wu
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Patent number: 11963391Abstract: Disclosed is an organic light emitting diode display device. The disclosed organic light emitting diode display device includes an overcoat layer disposed on a substrate that is divided into an emissive area and a non-emissive area, and has multiple micro lenses in the emissive area and at least one depression in the non-emissive area. The organic light emitting diode display device further includes: a first electrode disposed on the overcoat layer, wherein the first electrode is disposed in the entire emissive area and in a part of the non-emissive area; a bank pattern disposed in the non-emissive area so as to be superposed on the depression; an organic light emitting layer disposed on the substrate; and a second electrode disposed on the organic light emitting layer. Accordingly, the organic light emitting diode display device may prevent light leakage.Type: GrantFiled: June 17, 2021Date of Patent: April 16, 2024Assignee: LG Display Co., Ltd.Inventors: Jintae Kim, Sookang Kim, Soyoung Jo, Wonhoe Koo, Jihyang Jang, Hyunsoo Lim, Mingeun Choi
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Patent number: 11957029Abstract: An OLED display panel comprises an array substrate and metal wiring layers, wherein one part of metal lines is arranged in a direction perpendicular to a first dam, and the other part of the metal lines forms acute angles with the first dam. A plurality of first grooves are defined in a fan-out area and arranged along the metal lines, and a plurality of second grooves are defined in the array substrate corresponding to a part of an area and arranged in the direction perpendicular to the first dam.Type: GrantFiled: December 16, 2019Date of Patent: April 9, 2024Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Jun Cao
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Patent number: 11925075Abstract: A display apparatus includes: a thin-film transistor including a source electrode, a drain electrode, and a gate electrode; a data line in a layer different from the source electrode, the drain electrode, and the gate electrode, wherein the data line is configured to transmit a data signal; and a shield layer between the data line and a component of the thin-film transistor.Type: GrantFiled: July 8, 2021Date of Patent: March 5, 2024Assignee: Samsung Display Co., Ltd.Inventors: Yangwan Kim, Wonkyu Kwak, Jaedu Noh, Jaeyong Lee
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Patent number: 11922884Abstract: A display device includes: a first pixel including a first organic light emitting diode; an initialization voltage generator for generating a first initialization voltage to be supplied to an anode of the first organic light emitting diode; and a timing controller including a first lookup table in which a plurality of first initialization voltage values corresponding to a plurality of maximum luminances are recorded, the timing controller being configured to determine a value of the first initialization voltage, based on reception information on a target maximum luminance and the first lookup table.Type: GrantFiled: February 17, 2023Date of Patent: March 5, 2024Assignee: Samsung Display Co., Ltd.Inventors: Ji Hyun Ka, Seung Ji Cha, Mi Hae Kim, Ki Myeong Eom
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Patent number: 11910651Abstract: A disclosed light emitting display apparatus includes a substrate; a pixel driving layer on the substrate and including a driving transistor; a cover layer covering the pixel driving layer; a plurality of light emitting elements, including a first light emitting element and a second light emitting element each having a first electrode on the cover layer and being adjacent to each other; a bank disposed on the cover layer and between the first electrode of the first light emitting element and the first electrode of the second light emitting element; and a capacitor overlapping with the bank. The capacitor may include a first metal layer connected with a first terminal of the driving transistor via the first electrode of one of the first and second light emitting elements, and a second metal layer connected with a gate of the driving transistor.Type: GrantFiled: November 1, 2021Date of Patent: February 20, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Sejong Seong, Seungkyeom Kim
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Patent number: 11910672Abstract: A substrate includes a display area and a non-display area with touch electrodes disposed in the display area, touch lines disposed in the non-display area and connected to the touch electrodes, a first power supply line disposed in the non-display area and having a first power supply voltage applied thereto, and a second power supply line disposed in the non-display area and having a second power supply voltage applied thereto, the second power supply voltage being higher than the first power supply voltage. Any one of the touch lines overlaps at least one of the first power supply line and the second power supply line. The first power supply line overlaps the second power supply line.Type: GrantFiled: January 3, 2022Date of Patent: February 20, 2024Assignee: Samsung Display Co., Ltd.Inventors: Ki Ho Bang, Eun Hye Kim, Eun Ae Jung, Won Suk Choi
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Patent number: 11860019Abstract: A field device with display means for the visual representation of states determined by the field device, wherein at least two display means are provided, which are each configured in a ring-shaped or ring-segment-shaped manner, as well as a method for the visual representation of states determined by a field device.Type: GrantFiled: March 23, 2022Date of Patent: January 2, 2024Assignee: VEGA GRIESHABER KGInventors: Clemens Hengstler, Matthias Schmidt, Florian Krämer, Patrick Heizmann, Stefan Allgaier
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Patent number: 11856830Abstract: The present disclosure relates to a display device and a method of manufacturing the same, the display device including: a substrate including a pixel area and a non-pixel area adjacent to the pixel area; a power line formed on the substrate; at least one insulation layer covering the power line; a connection electrode formed on the at least one insulation layer, and connected to the power line through a contact hole; an overcoat layer placed above the connection electrode in the pixel area; and a first electrode placed above the overcoat layer, wherein the connection electrode has at least an area formed in the non-pixel area, and the first electrode extends to the non-pixel area and is connected to the connection electrode.Type: GrantFiled: December 22, 2020Date of Patent: December 26, 2023Assignee: LG Display Co., Ltd.Inventors: Jungeun Lee, Chulho Kim, Namkook Kim, Sungwoo Choi, Hwankeon Lee, Youngkyun Moon, Jihun Lee
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Patent number: 11837190Abstract: A display apparatus is provided. The display apparatus includes: a liquid crystal panel; a source driver configured to output a grayscale voltage to the liquid crystal panel; a power supply configured to provide a voltage to the source driver; and a controller configured to control the power supply and the source driver to change a maximum voltage provided to the source driver and a grayscale voltage based on conversion of a screen mode, and to set a predetermined grayscale region and an over driving region within an entire grayscale region.Type: GrantFiled: March 2, 2022Date of Patent: December 5, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventor: Jinoh Kim
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Patent number: 11809029Abstract: An electromagnetic wave emitting structure is provided in this disclosure. The electromagnetic wave emitting structure includes a substrate and a plurality of electromagnetic wave emitting units. The substrate has a first flat part and a foldable part connected with the first flat part. The plurality of electromagnetic wave emitting units are disposed on the substrate. Two adjacent ones of the plurality of electromagnetic wave emitting units on the first flat part have a first pitch in a first direction parallel to a surface of the first flat part, and another two adjacent ones of the plurality of electromagnetic wave emitting units on the foldable part have a second pitch in a second direction parallel to a surface of the foldable part. The second pitch is different from the first pitch.Type: GrantFiled: September 12, 2022Date of Patent: November 7, 2023Assignee: InnoLux CorporationInventors: Yu-Chih Tseng, Yu-Chia Huang, Chu-Hong Lai
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Patent number: 11790862Abstract: A display apparatus includes a display panel having a plurality of pixels, a gate driver configured to provide a gate signal to the display panel, a data driver configured to provide a data signal to the display panel, and a driving controller configured to control the gate driver and the data driver and to receive input image data to generate output image data corresponding to the data signal. The driving controller is configured to determine a scale factor based on a total load value of previous input image data and to compare the current input image data with the previous input image data to determine whether to apply the scale factor to the current input image data.Type: GrantFiled: January 3, 2022Date of Patent: October 17, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jang-Mi Lee, Kihyun Pyun, Hyoseok Yun
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Patent number: 11783779Abstract: A pixel circuit includes: a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node; a light emitting element including an anode electrode connected to the third node, and a cathode electrode connected to a power line; a first switch element to supply a data voltage of pixel data to the second node; a second switch element to supply an initialization voltage to the second node; a third switch element to supply a reference voltage to the third node; a fourth switch element configured to connect the third node to a power line to reset a voltage of the anode electrode of the light emitting element to the pixel reference voltage; and a capacitor between the second and third node.Type: GrantFiled: September 23, 2022Date of Patent: October 10, 2023Assignee: LG Display Co., Ltd.Inventors: Yong Won Lee, Ki Young Kwon, Seo Jun Yeom
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Patent number: 11770893Abstract: A display device includes: a display panel including a bending area; and a first passivation film and a second passivation film disposed on a first surface of the display panel to be spaced apart from each other. The second passivation film includes a first flat portion and a first stepped portion overlapping the bending area, and a thickness of the first stepped portion is less than a thickness of the first flat portion.Type: GrantFiled: June 30, 2020Date of Patent: September 26, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seung Min Song, Ki Nyeng Kang, Seon Beom Ji, Tae Hoon Yang
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Patent number: 11765941Abstract: A display device includes: a display including a plurality of light-emitting devices; a first bank provided outside the display; a second bank provided outside the first bank; and a plurality of peripheral lines formed below, and intersecting with, the first bank and the second bank, wherein each of the peripheral lines includes a plurality of bends provided between the first bank and the second bank in plan view.Type: GrantFiled: December 26, 2017Date of Patent: September 19, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Hisao Ochi, Tohru Senoo, Jumpei Takahashi, Tohru Sonoda, Takashi Ochi, Takeshi Hirase
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Patent number: 11765953Abstract: A display apparatus includes a first transistor including a first semiconductor layer and a first electrode that at least partially overlaps the first semiconductor layer. A first capacitor includes the first electrode and a second electrode that at least partially overlaps the first electrode. A second capacitor includes the second electrode and a third electrode that at least partially overlaps the second electrode. A first data line is configured to transfer a data voltage therethrough. First and second scan lines are configured to transfer first and second scan signals therethrough, respectively. A second transistor connects the first data line to the second electrode in response to the first scan signal. A third transistor connects the first electrode to a drain of the first transistor in response to the second scan signal.Type: GrantFiled: July 26, 2022Date of Patent: September 19, 2023Assignee: SAMSUNG DISPLAYCO., LTD.Inventors: Seokhyun Lim, Joohee Jeon, Sunmi Kang, Juhoon Kang, Hyungkeun Park, Donghwan Shim, Miyeon Cho, Gunhee Kim, Sunyoung Jung
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Patent number: 11715438Abstract: A display device that achieves both high-accuracy sensing by a touch sensor unit and smooth input using the touch sensor unit is provided. The display device includes a display unit and the touch sensor unit. The touch sensor unit performs touch sensing operation at a different timing from display image rewriting by the display unit, whereby the high-accuracy sensing can be achieved. The display unit has a function of rewriting a display image only in a region that needs to be rewritten. In the case where the entire display region is not necessarily rewritten, the time for the sensing operation by the touch sensor unit can be lengthened, whereby the smooth input can be achieved.Type: GrantFiled: June 9, 2022Date of Patent: August 1, 2023Inventors: Susumu Kawashima, Kouhei Toyotaka, Kei Takahashi
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Patent number: 11699391Abstract: A semiconductor device includes first to tenth transistors and first to fourth capacitors. Gates of the first and the fourth transistors are electrically connected to each other. First terminals of the first, second, fifth, and eighth transistors are electrically connected to a first terminal of the fourth capacitor. A second terminal of the fifth transistor is electrically connected to a gate of the sixth transistor and a first terminal of the second capacitor. A second terminal of the eighth transistor is electrically connected to a gate of the ninth transistor and a first terminal of the third capacitor. Gates of the second, seventh, and tenth transistors are electrically connected to first terminals of the third and fourth transistors and a first terminal of the first capacitor. First terminals of the sixth and seventh transistors are electrically connected to a second terminal of the second capacitor.Type: GrantFiled: April 19, 2022Date of Patent: July 11, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hajime Kimura, Takayuki Ikeda
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Patent number: 11688343Abstract: In a pixel driving circuit, a compensation sub-circuit is respectively coupled to a first control terminal, a control terminal and a second terminal of the driving sub-circuit; a first terminal of the first coupling sub-circuit is coupled to the control terminal of the driving sub-circuit; a first terminal of the second coupling sub-circuit is coupled to a second terminal of the first coupling sub-circuit; a first reset sub-circuit is respectively coupled to a second control terminal, the control terminal of the driving sub-circuit and an initialization signal output terminal; a second reset sub-circuit is respectively coupled to a third control terminal, a second terminal of the first coupling sub-circuit and the first level signal output terminal; a first light emitting control sub-circuit is respectively coupled to a light emitting control terminal, a second terminal of the second coupling sub-circuit and a reference signal output terminal.Type: GrantFiled: January 27, 2021Date of Patent: June 27, 2023Assignee: BOE Technology Group Co., Ltd.Inventors: Can Zheng, Jianchao Zhu, Lujiang Huangfu, Libin Liu, Shiming Shi
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Patent number: 11676555Abstract: A display device that achieves both high-accuracy sensing by a touch sensor unit and smooth input using the touch sensor unit is provided. The display device includes a display unit and the touch sensor unit. The touch sensor unit performs touch sensing operation at a different timing from display image rewriting by the display unit, whereby the high-accuracy sensing can be achieved. The display unit has a function of rewriting a display image only in a region that needs to be rewritten. In the case where the entire display region is not necessarily rewritten, the time for the sensing operation by the touch sensor unit can be lengthened, whereby the smooth input can be achieved.Type: GrantFiled: June 9, 2022Date of Patent: June 13, 2023Inventors: Susumu Kawashima, Kouhei Toyotaka, Kei Takahashi
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Patent number: 11657742Abstract: Embodiments disclosed herein provide systems and methods for testing and repairing various aspects of an electronic display. The electronic display includes a reference array and an active array. The electronic display also includes test circuitry used to test individual or any combination of pixels of the electronic display. Switches may be disposed between the pixels and the test circuitry to be to repair the various components of the electronic display.Type: GrantFiled: August 11, 2021Date of Patent: May 23, 2023Assignee: Apple Inc.Inventors: Hasan Akyol, Chung-Lun Edwin Hsu, Baris Cagdaser, John T. Wetherell, Xuebei Yang, Ali Tabatabaei, Patrick Bryce Bennett, Yingkan Lin, Chun-Ming Tang, Xiaofeng Wang, Hopil Bae
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Patent number: 11640787Abstract: The present disclosure relates to an array substrate and a display panel and a display device thereof. The array substrate comprises: a substrate; a pixel array disposed on the substrate, comprising a plurality of sub-pixels arranged in a plurality of rows and a plurality of columns; a plurality of pairs of scan signal lines, extending in a row direction and being spaced apart from each other in a column direction; and a reset voltage source signal line and a data signal line, extending in the column direction.Type: GrantFiled: June 30, 2020Date of Patent: May 2, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Shuang Zhao, Chenyu Chen, Wenbo Chen, Hongting Lu, Yanping Ren, Jing Yang
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Patent number: 11620922Abstract: In a cross section of a bending section of a frame region, a first opening opening upward is formed in at least one layer of inorganic film included in a TFT layer. A first organic film is provided to plug the first opening. A frame wiring line is provided on the first organic film. A second organic film is provided to cover the frame wiring line. A second opening opening upward is formed in the first organic film on an inner side with respect to the first opening.Type: GrantFiled: September 29, 2017Date of Patent: April 4, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Shinji Ichikawa, Tohru Okabe, Shinsuke Saida, Ryosuke Gunji, Hiroki Taniyama, Yoshihiro Nakada, Hiroharu Jinmura, Akira Inoue
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Patent number: 11616213Abstract: Provided are a display panel and a display device. The display panel includes a substrate, light-emitting units, a first organic layer, and light extraction structures located between the light-emitting units and the first organic layer. The first light extraction layer has a first central axis and is symmetrical about the first central axis, the second light extraction layer has a second central axis and is symmetrical about the second central axis, and the first central axis and the second central axis are perpendicular to the substrate. A surface of the second light extraction layer connecting the first light extraction layer is a first surface, a surface of the second light extraction layer facing away from the first light extraction layer is a second surface, and at least one of the first surface and the second surface comprises straight lines in a cross-section perpendicular to the substrate.Type: GrantFiled: September 17, 2020Date of Patent: March 28, 2023Assignee: SeeYA Optronics Co., Ltd.Inventors: Wanwan Xia, Liyuan Luo, Dong Qian
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Patent number: 11616106Abstract: A display device is provided that includes a substrate, a first conductive layer disposed on the substrate, a first insulating layer disposed on the first conductive layer, a second insulating layer disposed on the first insulating layer, the second insulating layer including a contact hole exposing the first conductive layer, a second conductive layer disposed on the first insulating layer and electrically connected to the first conductive layer through the contact hole, a second insulating layer disposed on the first insulating layer, a first electrode disposed on the second insulating layer and the second conductive layer, the first electrode being electrically connected to the second conductive layer, a light emitting layer disposed on the first electrode, and a second electrode disposed on the light emitting layer.Type: GrantFiled: March 30, 2020Date of Patent: March 28, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyun Kim, Seung Hwan Cho, Ju Chan Park
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Patent number: 11600689Abstract: A display substrate, a display panel and a display device. A pixel circuit includes a power supply wire providing a power supply voltage to the display pixel; a drive circuit in the non-display region includes a drive signal wire providing a drive signal to the pixel circuit; the power supply wire includes a narrow wire portion overlapping with the drive signal wire and a wide wire portion; a wire width of the narrow wire portion is less than that of the wide wire portion; the display substrate has a first side for display and a second side opposite to the first side, includes a bending region at an edge of the base substrate; the power supply wire and the drive signal wire extend from the first side to the bending region, crossing the bending region to extend to the second side; the narrow wire portion is on the second side.Type: GrantFiled: May 22, 2020Date of Patent: March 7, 2023Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Meng Zhang, Linhong Han, Zhenhua Zhang, Tingliang Liu, Yongjie Song, Huijuan Yang, Xiaofeng Jiang, Yi Qu
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Patent number: 11581378Abstract: A display apparatus includes first and second subpixel electrodes on a planarization layer including first and second via holes. The first subpixel includes a first pixel definition layer including a first opening exposing a portion of a first pixel electrode corresponding to a first emission portion. The first pixel electrode is connected to a first pixel circuit through the first via hole. The second subpixel includes a second pixel definition layer including a second opening exposing a portion of a second pixel electrode corresponding to a second emission portion. The second pixel electrode is connected to a second pixel circuit through the second via hole. A second distance defined as a shortest distance from an inner surface of the second opening to the second via hole is greater than a first distance defined as a shortest distance from an inner surface of the first opening to the first via hole.Type: GrantFiled: June 21, 2020Date of Patent: February 14, 2023Assignee: Samsung Display Co., Ltd.Inventors: Hyeonbum Lee, Jinwhan Jung
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Patent number: 11574596Abstract: A display device includes gate lines and pixels connected to the gate lines. The display device includes stages which provide gate signals to the gate lines, and first and second gate power lines which transfer a first voltage to the stages. A first stage among the stages includes a first node controller and a first output unit. The first node controller is connected to the second gate power line, and controls a voltage of a first control node. The first output unit is connected to the first gate power line, and outputs a first voltage of the first gate power line as a gate signal in response to a voltage of the first control node.Type: GrantFiled: March 18, 2021Date of Patent: February 7, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Hai Jung In
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Patent number: 11538399Abstract: A display panel, a driving method, and a display device are provided. The display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a data-writing module, a driving module, a compensation module, and a first light-emission controller. The driving module is configured to provide driving current for the light-emitting element. The driving module includes a driving transistor, and the driving transistor is an NMOS transistor. The data-writing module is connected between a data-signal input terminal and a first terminal of the driving transistor for selectively providing a data signal for the driving module. The compensation module is configured to compensate a threshold voltage of the driving transistor. The first light-emission controller is connected between a first power signal terminal and a second terminal of the driving transistor for selectively providing a first power signal to the driving module.Type: GrantFiled: February 3, 2021Date of Patent: December 27, 2022Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.Inventors: Jieliang Li, Jiaxian Liu
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Patent number: 11532267Abstract: A pixel driving circuit includes a light-emitting control sub-circuit and a plurality of display control sub-circuits. The light-emitting control sub-circuit is connected to a light-emitting control signal terminal, a power supply signal terminal and a light-emitting control node, and is configured to transmit a power supply signal from the power supply signal terminal to the light-emitting control node in response to a light-emitting control signal received from the light-emitting control signal terminal. Each display control sub-circuit is connected to the light-emitting control node, a scan signal terminal, a data signal terminal, and a light-emitting element. Each display control sub-circuit is configured to, in response to a scan signal received from the scan signal terminal, output a driving signal according to the power supply signal and a data signal from the data signal terminal, so as to drive the light-emitting element to emit light.Type: GrantFiled: September 21, 2020Date of Patent: December 20, 2022Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xuehuan Feng, Zheng Liu
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Patent number: 11527200Abstract: A pixel circuit of a display device Includes: an electro-optical element; a drive transistor; a write control transistor; a threshold compensation transistor; two light emission control transistors; a first initialization transistor having a first conduction terminal connected to a gate terminal of the drive transistor, a second conduction terminal to which an initialization voltage is applied, and a gate terminal connected to a first initialization control line; and a capacitor provided between a first conductive member and the gate terminal of the drive transistor. In a non-light emission period, time during which a voltage of the first initialization control line is at an on-level is longer than a period during which a voltage of a scanning line is at the on-level. As a result, a display device capable of sufficiently initializing the gate terminal of the drive transistor is provided.Type: GrantFiled: March 28, 2019Date of Patent: December 13, 2022Assignee: SHARP KABUSHIKI KAISHAInventor: Fumiyuki Kobayashi
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Patent number: 11521549Abstract: A pixel driving circuit, a method for driving the same, and a display panel are provided. An operating sequence of the pixel driving circuit includes a first light-emitting stage and a second light-emitting stage after the first light-emitting stage. The first light-emitting stage includes a data writing stage and a light-emitting stage after the data writing stage. The second light-emitting stage includes a correcting stage and a light-emitting stage after the correcting stage. The pixel driving circuit includes a driving module, a threshold voltage capturing module configured to be turned on during the data writing stage and to write a data voltage to a control terminal of the driving module, and a coupling module configured to adjust a coupling voltage of the control terminal of the driving module during the correcting stage and the light-emitting stage of the second light-emitting stage.Type: GrantFiled: June 7, 2022Date of Patent: December 6, 2022Assignees: WUHAN TIANMA MICROELECTRONICS CO., LTDInventors: Jian Kuang, Mengmeng Zhang, Xingyao Zhou, Lilian Kuang
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Patent number: 11450824Abstract: A display device includes: a display panel including a plurality of light emitting elements and a plurality of pads electrically connected to the plurality of light emitting elements; and a printed circuit board electrically connected to the plurality of pads. The display panel has first through sixth areas, with the second through sixth areas extending from different sides of the first area. T sixth area has an upper area extending from the fourth area, a bending area extending from the upper area, and a lower area extending from the bending area. The plurality of pads is on the lower area. The bending area of the sixth area is bent such that the lower area of the sixth area and the printed circuit board are parallel to the first area.Type: GrantFiled: May 7, 2020Date of Patent: September 20, 2022Assignee: Samsung Display Co., Ltd.Inventor: Minsoo Kim
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Patent number: 11417279Abstract: The present invention provides a pixel structure and a driving method thereof, and a display device. The pixel structure includes a switch unit, a driving unit, a plurality of thin film transistors, and at least one capacitor. In a driving process, control signals are provided by a same global control signal for realizing simultaneous control of the plurality of thin film transistors within a frame of time, thereby achieving synchronous light emission of a pixel structure circuit, and improving consistency and display quality of display images of larger-size display panels.Type: GrantFiled: April 21, 2020Date of Patent: August 16, 2022Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Jinxiang Chen
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Patent number: 11374078Abstract: An array substrate, a display panel and a display device are provided. The array substrate includes a plurality of pixel groups arranged as a matrix. The plurality of pixel groups include a plurality of first pixel groups, a plurality of second pixel groups and a plurality of third pixel groups. In odd number rows of pixel groups and odd number columns of pixel groups, the first pixel groups and the second pixel groups are alternately arranged. In even number rows of pixel groups and even number columns of pixel groups, the second pixel groups and the third pixel groups are alternately arranged. Each first pixel group includes two first sub-pixels arranged along a first direction. Each second pixel group includes two second sub-pixels arranged along a second direction; and each third pixel group includes two third sub-pixel groups arranged along the first direction.Type: GrantFiled: June 23, 2020Date of Patent: June 28, 2022Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai BranchInventor: Yu Xin
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Patent number: 11361705Abstract: A display device includes: a plurality of pixels arranged in a row direction and a column direction; a data driver configured to transmit a data signal to the plurality of pixels through a plurality of data lines; a scan driver configured to transmit a scan signal to the plurality of pixels through a plurality of scan lines; and a light emission driver configured to transmit a light emission signal to the plurality of pixels through a plurality of light emission lines, wherein each of the scan lines and the light emission lines is connected to the pixels arranged in the row direction among the plurality of pixels, the data lines are connected to the pixels arranged in the column direction among the plurality of pixels, and the scan driver is configured to transmit the scan signal of a turn-on level to the pixels in an interlace manner.Type: GrantFiled: September 29, 2020Date of Patent: June 14, 2022Assignee: Samsung Display Co., Ltd.Inventors: Kang Hee Lee, Deok Jun Choi, Woo Chui Kim, In Bok Song
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Patent number: 11348512Abstract: A pixel for a display device includes a light-emitting element, a first transistor including a first electrode electrically connected to a first node and controlling a driving current, a second transistor electrically connected between a data line and the first node and being turned on in response to a first scan signal supplied through a first scan line, a third transistor electrically connected between the second node and a third node electrically connected to a second electrode of the first transistor and being turned on in response to the first scan signal, and a fourth transistor being turned on in response to a second scan signal supplied through a second scan line, and applying a bias voltage to the first transistor. The fourth transistor is turned on at a first frequency. The second and third transistors are turned on at a second frequency different from the first frequency.Type: GrantFiled: May 22, 2020Date of Patent: May 31, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Na Young Kim, Dong Hwi Kim, Jin Jeon
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Array substrate and display device each having a data line connecting sub-pixels of different colors
Patent number: 11342386Abstract: An array substrate and a display device are provided. The array substrate includes at least one data line and a plurality of sub-pixel groups arranged in an array along a first direction and a second direction. At least one sub-pixel group includes two rows of sub-pixels, one row of the two rows of sub-pixels includes a first color sub-pixel and a second color sub-pixel, and the other row of the two rows of sub-pixels includes a third color sub-pixel; the first color sub-pixel, the second color sub-pixel and the third color sub-pixel in each sub-pixel group are connected to a same data line of the at least one data line.Type: GrantFiled: May 27, 2019Date of Patent: May 24, 2022Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Can Yuan, Yongqian Li, Meng Li, Zhidong Yuan -
Patent number: 11315456Abstract: A display device and a short circuit detection method therefor are disclosed. The display device comprises: a display panel, a data driving circuit and a scanning driving circuit; the data driving circuit includes a digital-to-analog converter, an amplifier, a switch module and a sensor; an output terminal of the digital-to-analog converter is connected to a data line sequentially via the amplifier and the switch module; the sensor is connected to an external voltage source; and an input terminal and an output terminal of the switching module are disconnected when a feedback voltage received by the sensor is outside of a voltage value range defined by a first voltage source and a second voltage source.Type: GrantFiled: May 25, 2021Date of Patent: April 26, 2022Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Zhi Xiong
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Patent number: 11309373Abstract: A display device includes: a pixel at a display region. The pixel includes: a light-emitting element connected between a first power source and a second power source; and a first transistor connected between the first power source and the light-emitting element, the first transistor to control a driving current of the light-emitting element in response to a voltage of a first node. The first transistor includes a first driving transistor and a second driving transistor that are connected in series with each other between the first power source and the light-emitting element, and the first driving transistor and the second driving transistor have structures that are asymmetric with each other in a cross-sectional view.Type: GrantFiled: April 2, 2020Date of Patent: April 19, 2022Assignee: Samsung Display Co., Ltd.Inventors: Keun Woo Kim, Yong Su Lee, Myoung Geun Cha, Doo Na Kim, Sang Sub Kim, Jae Hwan Chu, Sang Gun Choi
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Patent number: 11257450Abstract: A display apparatus includes a display panel, a gate driver and a data driver. The display panel is configured to display an image. The gate driver is configured to output a gate signal to the display panel. The data driver is configured to output a data voltage to the display panel. The display panel includes a first subpixel row including first subpixels having a first color and a second subpixel row including second subpixels having a second color. A first gate off voltage of a first gate signal applied to the first subpixel row to turn off switching elements of the first subpixel row is different from a second gate off voltage of a second gate signal applied to the second subpixel row to turn off switching elements of the second subpixel row.Type: GrantFiled: February 27, 2018Date of Patent: February 22, 2022Inventors: Jahun Koo, Kyung-Hun Lee
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Patent number: 11239300Abstract: A display apparatus includes a base substrate including a display area and a peripheral area, a conductive layer formed on the base substrate in an entirety of the peripheral area and the display area, a buffer layer on the conductive layer, a thin film transistor on the buffer layer in the display area, an electrode in a contact hole that is formed through the buffer layer to expose a side surface of the conductive layer in the peripheral area, the electrode making contact the conductive layer, an insulating pattern in the contact hole on the electrode, and a wiring on the insulating pattern and electrically connected to the electrode.Type: GrantFiled: October 3, 2019Date of Patent: February 1, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Junhee Lee, Kiseong Seo, Deok Hoi Kim
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Patent number: 11200832Abstract: A pixel circuit is provided. A first terminal and a second terminal of a light-emitting sub-circuit are coupled to a first power supply terminal and a compensation sub-circuit respectively. A short-circuiting sub-circuit is coupled to the first terminal and the second terminal of, and short-circuits under control of a short-circuiting control terminal, the light-emitting sub-circuit. The compensation sub-circuit is coupled to a data voltage terminal, a reference voltage terminal, and a first electrode and a gate electrode of a driving transistor. The light-emitting sub-circuit emits a light of brightness in a level corresponding to a current flowing therethrough. The compensation sub-circuit loads, based on the data voltage terminal and the reference voltage terminal, a driving voltage related to a threshold voltage of the driving transistor onto the gate electrode of the driving transistor, such that a current flowing through the driving transistor is not influenced by its threshold voltage.Type: GrantFiled: May 24, 2018Date of Patent: December 14, 2021Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Mengyu Luan, Xinfeng Wu, Youyuan Hu, Xinzhu Wang, Fei Li, Huihui Li, Chengpeng Zhao, Bo Mao, Kai Yang, Zhongsheng Qi, Jie Liu
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Patent number: 11200847Abstract: A display panel includes multiple scanning lines, sub-pixels and a scanning drive circuit. The sub-pixels include first sub-pixels, second sub-pixels and third sub-pixels. Each scanning line connects to sub-pixels of one same type of emission. The first sub-pixels include a first group and a second group, and the third sub-pixels include a first group and a second group. The scanning drive circuit is used for driving a fraction of the sub-pixels in one frame. In odd frames, only first group of the first sub-pixels, and the third sub-pixels, and the second sub-pixels are driven to emit light in odd frames. In even frames, only second group of the first sub-pixels and the third sub-pixels, and the second sub-pixels are driven to emit light. When the display screen is refreshed, the number of the sub-pixels driven to emit light is reduced, and power of charging and discharging of the sub-pixels is reduced.Type: GrantFiled: September 11, 2019Date of Patent: December 14, 2021Assignee: Shanghai Tianma AM-OLED Co., Ltd.Inventors: Nana Xiong, Tianyi Wu
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Patent number: 11170710Abstract: A display module including display pixels, driving circuit and first switches is provided. The display pixels are arranged in columns and rows in the display area, and every display pixel includes sub-pixels. The display pixels form pixel rows along the first direction, and the sub-pixels of the display pixels form sub-pixel columns along the second direction. The color of the light emitting from the sub-pixels of the same sub-pixel column are substantially the same. The first direction and the second direction are substantially perpendicular. The driving circuit includes signal connectors, and every signal connector connects one of the pixel rows. The first switch is connected between a power source and one of the pixel rows, transmitting driving signal. The first switch is controlled by the driving circuit. A display device and a driving method are also provided.Type: GrantFiled: April 1, 2020Date of Patent: November 9, 2021Assignee: AU OPTRONICS CORPORATIONInventors: Hsiang-Yuan Hsieh, Min-Yao Lu, Ming-Chen Hsu, Chin-Tang Chuang
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Patent number: 11111244Abstract: An organic compound which can be used as the phosphorescent host material, the fluorescent host material, or the fluorescent dopant material of the light emitting layer, and/or the electron transporting material of the organic electroluminescence device is disclosed. The organic electroluminescence device employing the organic compound can lower driving voltage, prolong half-lifetime, and increase current efficiency.Type: GrantFiled: October 8, 2018Date of Patent: September 7, 2021Assignee: LUMINESCENCE TECHNOLOGY CORP.Inventors: Feng-Wen Yen, Shu-Hua Yeh
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Patent number: 11114028Abstract: The present disclosure provides a display device capable of determining the characteristics of the light emitting diode without having to consider various factors dependent upon the manufacturing process. The light emitting diode includes an internal resistor and a parasitic capacitor. The light emitting diode is connected to a sensing circuit including an integrator that has a sensing resistor and a feedback capacitor. Based on a first sensing of a pixel along a first sensing path and a second sensing of the pixel along the second sensing path, the sensing circuit senses a first charge amount from the first sensing path and a second charge amount from the second sensing path. The characteristics of the light emitting diode can be determined by dividing the first charge amount and the second charge amount, which is based on the ratio of the sensing resistor and the internal resistor.Type: GrantFiled: December 16, 2019Date of Patent: September 7, 2021Assignee: LG DISPLAY CO., LTD.Inventors: Munchae Yoon, Sungwon Lee, Sungwook Choi
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Patent number: 11088284Abstract: A display apparatus includes: a substrate on which a first area, a second area spaced apart from the first area, and a bending area between a first area and a second area and bent along a bending axis are defined; a first thin-film transistor (“TFT”) and a second TFT; and a first conductive layer and a second conductive layer. The first TFT includes: a first active layer including polycrystalline silicon; a first gate electrode; and a first electrode disposed at a level which is the same as a level of the first conductive layer, and the second TFT includes: a second active layer including an oxide semiconductor; a second gate electrode; and a second electrode disposed at a level which is the same as a level of the second conductive layer.Type: GrantFiled: January 15, 2018Date of Patent: August 10, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyoungseok Son, Eoksu Kim, Jaybum Kim, Junhyung Lim, Jihun Lim
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Patent number: 11073730Abstract: It is an object to provide technology enabling an increase in durability against cracking of a curved display panel having a non-rectangular outline shape. A non-rectangular curved display device includes a liquid crystal panel including an array substrate and liquid crystal driving ICs arranged on the array substrate. The liquid crystal panel is curved to have a valley extending in a second direction perpendicular to a first direction between opposite ends of an outline shape, and opposite ends being two ends of each of the liquid crystal driving ICs opposing in the first direction are located, in plan view, to be out of straight lines extending from corner portions in the second direction.Type: GrantFiled: August 2, 2018Date of Patent: July 27, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takanori Okumura, Naoki Nakagawa, Toshiaki Fujino
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Patent number: 11069317Abstract: A display device includes: a plurality of first pixel sections; a plurality of second pixel sections; first image lines disposed in a first pixel area; a plurality of second image lines disposed in a second pixel area; short-circuit lines connected to the second image lines, the short-circuit lines short-circuiting the second image lines; a first pixel drive unit driving the first pixel sections; a plurality of second pixel drive units driving the second pixel sections arranged side by side along a row direction by time division while the first pixel drive unit is driving the first pixel sections; and an image signal supply section supplying first image signals to the first image lines in synchronism with the first pixel drive unit driving the first pixel sections and supplying second image signals to the short-circuit lines by time division in synchronism with the second pixel drive units driving the second pixel sections arranged side by side along the row direction.Type: GrantFiled: April 23, 2020Date of Patent: July 20, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Toshiyuki Makii, Nobuyuki Hashimoto