In Combination With Capacitor Element (e.g., Dram) Patents (Class 257/71)
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Patent number: 12243881Abstract: To reduce a leakage current of a transistor so that malfunction of a logic circuit can be suppressed. The logic circuit includes a transistor which includes an oxide semiconductor layer having a function of a channel formation layer and in which an off current is 1×10?13 A or less per micrometer in channel width. A first signal, a second signal, and a third signal that is a clock signal are input as input signals. A fourth signal and a fifth signal whose voltage states are set in accordance with the first to third signals which have been input are output as output signals.Type: GrantFiled: August 30, 2023Date of Patent: March 4, 2025Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Jun Koyama, Masashi Tsubuku, Kosei Noda
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Patent number: 12193297Abstract: Embodiments of the present disclosure provide a display panel and a display device. The display panel includes a base substrate, a plurality of pixel units and a plurality of gate line groups. At least one pixel unit includes a plurality of sub-pixels. At least one sub-pixel includes a sensing transistor and a driving transistor. Each gate line group includes a first gate line and a second gate line; for the first gate line and the second gate line corresponding to the sub-pixels in the same row, the positions of the sensing transistors are closer to the second gate lines, and the positions of the driving transistors are closer to the first gate line, For two sub-pixels close to each other and located in different pixel units in the same row, at least one signal line has a double-layer alignment structure, and the double-layer alignments are electrically connected with each other.Type: GrantFiled: October 23, 2023Date of Patent: January 7, 2025Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Zhongyuan Wu, Yongqian Li, Can Yuan, Zhidong Yuan, Meng Li, Dacheng Zhang, Lang Liu
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Patent number: 12183771Abstract: A display device includes a first subpixel and a second subpixel, wherein the first subpixel includes a first light source unit including a plurality of first light-emitting elements configured to emit first light having a center wavelength of a first wavelength, the second subpixel includes a second light source unit including a plurality of second light-emitting elements configured to emit second light having a center wavelength of a second wavelength, the first light source unit includes first to nth light-emitting groups that are connected in series, each of the groups including the plurality of first light-emitting elements, the second light source unit includes first to mth light-emitting groups that are connected in series and each of the groups includes the plurality of second light-emitting elements, where n and m are natural numbers, and the second wavelength is different from the first wavelength.Type: GrantFiled: November 5, 2021Date of Patent: December 31, 2024Assignee: Samsung Display Co., Ltd.Inventors: Seung Geun Lee, Byung Ju Lee, Hoo Keun Park, Chul Jong Yoo, Dong Eon Lee
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Patent number: 12174502Abstract: A touch panel includes a first portion extending in a first direction within a pixel region, a source driving circuit, an inspection circuit, an input terminal region, and an inspection line extending in the first direction within a frame region. The inspection line is formed in a layer different from a layer where the first portion is formed. The inspection line is connected to the first portion and a second portion via a contact hole between a touch-detecting electrode and the source driving circuit. The second portion crosses the source driving circuit and the inspection circuit in a direction intersecting the first direction.Type: GrantFiled: January 23, 2024Date of Patent: December 24, 2024Assignee: SHARP DISPLAY TECHNOLOGY CORPORATIONInventors: Shige Furuta, Takahiro Yamaguchi, Kohei Hosoyachi, Yuhichiroh Murakami, Kiyohito Itoh
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Patent number: 12159842Abstract: A display device includes: a substrate including a first component area in which a first transmission portion is arranged, a second component area that surrounds the first component area and in which a second transmission portion is arranged, and a main display area surrounding at least a portion of the second component area; an insulating layer having a first transmission hole corresponding to the first transmission portion and a second transmission hole corresponding to the second transmission portion, the first transmission hole and the second transmission hole exposing an upper surface of the substrate; a plurality of display elements arranged on the insulating layer and corresponding to the first component area, the second component area, and the main display area; and an alignment pattern arranged on the substrate and overlapping the second transmission hole and configured to align a component with the second component area.Type: GrantFiled: July 24, 2023Date of Patent: December 3, 2024Assignee: Samsung Display Co., Ltd.Inventors: Seungchan Lee, Sungjin Hong, Sanghee Jang, Sunhee Lee
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Patent number: 12130984Abstract: A display device includes a pixel unit including a sensing region where pixels are disposed at a first pixels per inch (PPI) and a display region where pixels are disposed at a second PPI; a touch sensor unit disposed on the pixel unit, and including a first touch sensor region where touch sensors are disposed at a first electrode density and a second touch sensor region where touch sensors are disposed at a second electrode density higher than the first electrode density; a display panel driver configured to drive the pixel unit; and a touch sensor driver configured to change at least one of a voltage level of a driving pulse applied to the first touch sensor region and an accumulated number of the touch signals sensed from the first touch sensor region based on the touch signals sensed from the first touch sensor region overlapping with the sensing region.Type: GrantFiled: August 29, 2022Date of Patent: October 29, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Jong Hee Hwang, Bo Gun Seo, Kyoung Hwan Kim
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Patent number: 12080223Abstract: An emissive display device includes: a light emitting diode; an n-type driving transistor comprising a first driving gate electrode, a first electrode receiving a driving voltage, a second electrode transferring an output current to the anode, and a second driving gate electrode; a second transistor connected to a data line; a third transistor configured to connect the first electrode and the first driving gate electrode of the driving transistor; a storage capacitor comprising a first storage electrode and a second storage electrode connected to the first driving gate electrode; a ninth transistor transferring an overlapping electrode voltage to the second driving gate electrode; an overlapping electrode voltage line crossing the data line and receiving the overlapping electrode voltage; and a shielding electrode at an intersection of the data line and the overlapping electrode voltage line and between the data line and the overlapping electrode voltage line.Type: GrantFiled: February 16, 2023Date of Patent: September 3, 2024Assignee: Samsung Display Co., Ltd.Inventors: Minku Lee, Ji-Hyun Ka, Chul Kyu Kang, Seunghee Lee, Hai-Jung In, Hyeongjun Jin, Hyun Ji Cha
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Patent number: 12073651Abstract: An electronic device having an authentication method with a high security level is provided. The electronic device includes a pixel portion, a sensor portion, an authentication portion, and a housing. The pixel portion includes a display element and a light-receiving element. The pixel portion has a function of turning on the display element. The pixel portion has a function of obtaining authentication information by capturing an image of a target object touching the pixel portion. The sensor portion has a function of detecting attachment or detachment to a living body or an object. The authentication portion has a function of performing authentication processing with the use of the authentication information. The housing includes a first surface and a second surface opposite to the first surface. The pixel portion is positioned on the first surface and the sensor portion is positioned on the second surface.Type: GrantFiled: June 14, 2021Date of Patent: August 27, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Koji Kusunoki, Daisuke Kubota, Ryo Hatsumi
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Patent number: 12075673Abstract: A display panel includes a first display region, a second display region, a third display region, a plurality of first pixel circuits, a plurality of second pixel circuits, a plurality of third pixel circuits, a plurality of first data lines, and a plurality of second data lines. The second display region at least partially surrounds the first display region, the third display region at least partially surrounds the second display region and the first display region, and a light transmittance of the first display region is greater than a light transmittance of the third display region. The plurality of first pixel circuits and the plurality of second pixel circuits are in the second display region, and the plurality of third pixel circuits is in the third display region. The plurality of first data lines are connected to the plurality of first pixel circuits and the plurality of third pixel circuits.Type: GrantFiled: July 6, 2023Date of Patent: August 27, 2024Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.Inventors: Xingxing Yang, Yangzhao Ma, Zhiqiang Xia
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Patent number: 12069895Abstract: Provided is a display apparatus including: a substrate in which a display element is arranged; a first thin film transistor arranged in the display area and including a first semiconductor layer including silicon and a first control electrode insulated from the first semiconductor layer; a first interlayer insulating layer covering the first control electrode; a second thin film transistor arranged on the first interlayer insulating layer and including a second semiconductor layer including an oxide semiconductor and a second control electrode insulated from the second semiconductor layer; a second interlayer insulating layer covering the second control electrode; a node connection line arranged on the second interlayer insulating layer and connected to the first control electrode via a first contact hole; a first planarization layer covering the node connection line; and a shielding electrode arranged on the first planarization layer to overlap the node connection line.Type: GrantFiled: December 6, 2021Date of Patent: August 20, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jieun Lee, Minchae Kwak, Byungsun Kim, Ilgoo Youn, Seunghan Jo, Junyoung Jo, Minhee Choi
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Patent number: 12048212Abstract: Provided are a wiring structure of a pixel driving circuit, a display panel, and a display device. The wire layout includes: a first switching element, a second switching element and a driving transistor. A source electrode of the driving transistor is connected to a power signal line. The power signal line includes a first power signal line that is in a same direction as a data signal line, and the data signal line is arranged at a position of the first power signal line away from a gate electrode of the driving transistor.Type: GrantFiled: August 19, 2022Date of Patent: July 23, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yipeng Chen, Libin Liu, Yunfei Li
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Patent number: 12041811Abstract: A display device includes a display region, a frame region, and a curved portion. The display device includes a resin layer, a plurality of inorganic insulating films, and a metal layer. A metal pattern formed with the metal layer is formed between an edge portion of the curved portion and the display region in the frame region along a curved shape of the edge portion of the curved portion and along at least a portion of corresponding two sides of the display device. The metal pattern is electrically disconnected from a wiring line of the display region, and a width of the metal pattern decreases toward both end portions.Type: GrantFiled: September 26, 2018Date of Patent: July 16, 2024Assignee: SHARP KABUSHIKI KAISHAInventor: Noriko Watanabe
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Patent number: 12015034Abstract: Disclosed are a display substrate and a display device. The display substrate includes: a base substrate; a plurality of gate lines and a plurality of data lines on the base substrate that intersect to surround a plurality of pixels; at least one thin film transistor on the base substrate and located in each pixel, each thin film transistor including a gate electrode, a first electrode and a second electrode; a storage capacitor on the base substrate and located in each pixel, the storage capacitor including a first capacitor electrode and a second capacitor electrode that are disposed oppositely and located in the same layer, wherein the first capacitor electrode comprises at least an electrode body; and a tip structure, the tip structure and the first capacitor electrode being located in the same layer, and the tip structure including a first tip sub-structure and a second tip sub-structure.Type: GrantFiled: October 30, 2020Date of Patent: June 18, 2024Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Hanqing Liu, Wei Chen, Pengcheng Tian, Haowei Zou, Junru Ma
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Patent number: 11984079Abstract: Provided is a display panel. The display panel includes: a substrate, at least one row of light-emitting elements disposed on the substrate, a plurality of pixel drive circuits, a plurality of connection lines, and a plurality of compensation portions. A length of a first connection line electrically connected to a first pixel drive circuit is less than a length of a second connection line electrically connected to a second pixel drive circuit. A capacitance of the first connection line is compensated by electrically connecting the compensation portion to the first connection line, and thus a difference between the capacitance of the first connection line and a capacitance of the second connection line is reduced.Type: GrantFiled: May 12, 2022Date of Patent: May 14, 2024Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yanwei Lu, Bangqing Xiao, Jianchang Cai, Benlian Wang, Yao Huang, Yue Long
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Patent number: 11903278Abstract: A display panel includes: a substrate including a first area and a second area surrounding the first area; a first initialization voltage line extending in a first direction and electrically connected to the first display element; a second initialization voltage line extending in the first direction and electrically connected to the second display element; an auxiliary voltage line arranged on a layer different from layers on which the first initialization voltage line and the second initialization voltage line are arranged and electrically connecting the first initialization voltage line and the second initialization voltage line that are apart from each other; and a first insulating layer covering the first initialization voltage line, the second initialization voltage line, and the auxiliary voltage line and arranged below the plurality of display elements.Type: GrantFiled: February 18, 2022Date of Patent: February 13, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hyunji Cha, Jihyun Ka, Sukyoung Kim, Hwayoung Song, Youngsoo Yoon, Dongeup Lee, Wonse Lee, Yunkyeong In, Donghyeon Jang, Yujin Jeon
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Patent number: 11875752Abstract: A display panel, a manufacture method thereof and a display device are provided. The display panel includes multiple subpixel zones and a reset signal line pattern, an initialization signal line pattern and a conductive connecting part pattern in each of the subpixel zones. The initialization signal line pattern includes a first body portion and a first protruding portion coupled to each other. The orthographic projection of the first body portion onto the base is between the orthographic projection of the first protruding portion onto the base and the orthographic projection of the reset signal line pattern onto the base. The orthographic projection of a first end portion of the conductive connecting part pattern onto the base and the orthographic projection of the first protruding portion onto the base have a first overlapped region.Type: GrantFiled: March 25, 2020Date of Patent: January 16, 2024Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Huijuan Yang, Tingliang Liu, Xiaofeng Jiang, Huijun Li, Shun Zhang, Yu Wang, Jie Dai
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Patent number: 11864396Abstract: A flexible display device including a substrate, a light emitting layer, a first insulating layer, and a conductive layer. The substrate includes a bent region and a non-bent region. The light emitting layer overlaps the non-bent region. The first insulating layer is disposed on the substrate. The conductive layer is disposed on the first insulating layer. A sidewall of the first insulating layer includes a first tapered surface. The first tapered surface includes at least three curved surface portions continuously arranged with one another.Type: GrantFiled: March 30, 2023Date of Patent: January 2, 2024Assignee: Samsung Display Co., Ltd.Inventors: Ki Hyun Cho, Yong Jae Park, Sang Jo Lee, Won Suk Choi, Yoon Sun Choi
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Patent number: 11849617Abstract: Embodiments of the present disclosure provide a display panel and a display device. The display panel includes a base substrate, a plurality of pixel units and a plurality of gate line groups. At least one pixel unit includes a plurality of sub-pixels. At least one sub-pixel includes a sensing transistor and a driving transistor. Each gate line group includes a first gate line and a second gate line; for the first gate line and the second gate line corresponding to the sub-pixels in the same row, the positions of the sensing transistors are closer to the second gate lines, and the positions of the driving transistors are closer to the first gate line, For two sub-pixels close to each other and located in different pixel units in the same row, at least one signal line has a double-layer alignment structure, and the double-layer alignments are electrically connected with each other.Type: GrantFiled: November 29, 2019Date of Patent: December 19, 2023Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Zhongyuan Wu, Yongqian Li, Can Yuan, Zhidong Yuan, Meng Li, Dacheng Zhang, Lang Liu
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Patent number: 11818919Abstract: The present disclosure relates to a display device, interference which may be generated by the shielding layer in the display device is reduced to minimize the noise.Type: GrantFiled: October 21, 2022Date of Patent: November 14, 2023Assignee: LG Display Co., Ltd.Inventor: GwanMin Yu
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Patent number: 11749658Abstract: A display device includes a substrate including a display area having a plurality of pixel areas and a non-display area located at at least one side of the display area; a pixel in each of the pixel areas; and a plurality of fan-out lines in the non-display area to form a first conductive layer. The pixel includes a pixel circuit layer including at least one transistor and a first bridge line and a second bridge line; and a display element layer on the pixel circuit layer. Each of the first and second bridge lines is electrically connected to a corresponding fan-out line from among the fan-out lines.Type: GrantFiled: June 16, 2022Date of Patent: September 5, 2023Assignee: Samsung Display Co., Ltd.Inventors: Ji Hye Lee, Kyung Bae Kim, Mee Hye Jung
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Patent number: 11751460Abstract: A display panel, a method of manufacturing the same, and a display device are provided. In the display panel, sub-pixel areas in a same row along a first direction are divided into a plurality of sub-pixel area groups independent from each other, and each sub-pixel area group includes at least two adjacent sub-pixel areas, a connection layer includes a connection pattern arranged in each sub-pixel area, and the connection pattern is coupled to the initialization signal line pattern in the sub-pixel area wherein the connection pattern is located, connection patterns located in a same sub-pixel area group are sequentially coupled along the first direction to form the connection portion; at least part of a first auxiliary signal line layer is located in an anode spacing area, and is insulated from an anode pattern, the connection pattern in each sub-pixel area group is coupled to the first auxiliary signal line layer.Type: GrantFiled: April 15, 2021Date of Patent: September 5, 2023Assignee: BOE Technology Group Co., Ltd.Inventors: Yipeng Chen, Lujiang Huangfu, Libin Liu
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Patent number: 11737325Abstract: A display panel includes a first display region, a second display region partially surrounding the first display region, and a third display region partially surrounding the first and second display regions. The first display region has a larger light transmittance than the third display region, and the first display region includes an effective light-transmission region and a wiring region located on at least one side of the effective light-transmission region. The display panel includes first and second pixel circuits in the second display region; third pixel circuits in the third display region; first data lines, connected to the first and third pixel circuits; and second data lines, connected to the second and third pixel circuits. Each first data line includes a first sub-data line in the wiring region, a second sub-data line in the second display region, and a third sub-data line in the third display region.Type: GrantFiled: March 5, 2021Date of Patent: August 22, 2023Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Xingxing Yang, Yangzhao Ma, Zhiqiang Xia
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Patent number: 11735605Abstract: A display substrate has a main display area and at least one auxiliary display area located beside the main display area. The display substrate includes a plurality of first sub-pixels located in the main display area, and a plurality of second sub-pixels located in each of the at least one auxiliary display area. A distribution density of the plurality of first sub-pixels in the main display area is greater than a distribution density of the plurality of second sub-pixels in each auxiliary display area. Each of the plurality of second sub-pixels includes a pixel driving circuit, and the pixel driving circuit includes at least one vertical thin film transistor. A space exists between every two adjacent pixel driving circuits, and a plurality of spaces constitute a light-transmitting region of the corresponding auxiliary display area.Type: GrantFiled: November 12, 2019Date of Patent: August 22, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Bo Wang, Hao Zhang, Fuqiang Li
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Patent number: 11721299Abstract: A viewing angle compensation method of a display panel and a display panel are provided. The method includes a step of providing a display panel, a step of setting data polarities, a step of performing grayscale transformation on grayscale values of successive frames, and a step of acquiring grayscale values of successive frames.Type: GrantFiled: September 8, 2020Date of Patent: August 8, 2023Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventor: Jhenwei He
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Patent number: 11716893Abstract: A display device includes a substrate including a display area having pixels disposed and a non-display area surrounding the display area and having a dummy pattern disposed; a light emitting layer formed on the pixels and the dummy pattern; and a bank surrounding the light emitting layer, wherein the dummy pattern includes a first dummy merge part extending along an X axis direction; and first sub-dummy parts extending from one side of the first dummy merge part to an outer region of the substrate along a Y axis direction perpendicular to the X axis direction.Type: GrantFiled: November 29, 2022Date of Patent: August 1, 2023Inventor: Hyeongseok Kim
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Patent number: 11696471Abstract: The disclosure discloses an array substrate, an OLED display panel and a display device. A storage capacitor includes a first capacitor and a second capacitor which are connected in parallel, wherein the first capacitor includes a storage electrode and a first electrode, a layer where the first electrode is located is same as a layer where the grid electrode of the driving transistor is located, the second capacitor includes the storage electrode and a second electrode, a layer where the second electrode is located is same as a layer where the power supply voltage line is located, and the first electrode and the second electrode are electrically connected through a via hole penetrating through a first insulating layer and a second insulating layer.Type: GrantFiled: March 25, 2021Date of Patent: July 4, 2023Assignee: BOE Technology Group Co., Ltd.Inventor: Zhichong Wang
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Patent number: 11652089Abstract: A method for making a micro LED display panel not requiring high-accuracy or individual positioning includes providing a carrier substrate with micro LEDs, providing a TFT substrate including a driving circuit, and forming a conductive connecting element, an insulating layer, and a contact electrode layer on the TFT substrate. The insulating layer and the contact electrode layer are patterned to define a through hole, the first electrode is placed against the contact electrode layer, and different voltages Vref and Vdd are applied to the contact electrode layer and to the conductive connecting element respectively, creating an electrostatic attraction. The micro LEDs and the first electrode are transferred from the carrier substrate onto the TFT substrate; and the conductive connecting element is bonded to the first electrode. The method of making is simple. A micro LED display panel made by the method is also provided.Type: GrantFiled: June 24, 2021Date of Patent: May 16, 2023Assignee: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Wei-Chih Chang, Kuo-Sheng Lee, Chung-Wen Lai, Po-Fu Chen
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Patent number: 11631271Abstract: A fingerprint sensor includes a sensor pixel arranged in a sensing area, including a pixel electrode coupled to a first node; a first transistor coupled between the first node and a first or second power line, the first transistor including a first gate electrode coupled to a first scan line and a second gate electrode opposite to the first gate electrode; a first capacitor coupled between the first node and a second scan line; a second transistor coupled between a readout line and the first power line, the second transistor including a first gate electrode coupled to the first node and a second gate electrode opposite to the first gate electrode; and a third transistor coupled between the second transistor and the first power line, the third transistor including a first gate electrode coupled to the second scan line and a second gate electrode opposite to the first gate electrode.Type: GrantFiled: October 16, 2018Date of Patent: April 18, 2023Assignee: Samsung Display Co., Ltd.Inventors: Ji Sun Kim, Mu Kyung Jeon
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Patent number: 11569311Abstract: An array substrate, a manufacturing method thereof and a display panel are provided. The array substrate includes sub-pixel units, and each sub-pixel unit includes a light emitting region and a non-light emitting region; each sub-pixel unit includes a light emitting element, the light emitting element includes a light emitting layer and a first electrode, and at least a part of the first electrode is in the light emitting region. A plurality of first wires are configured to supply a power signal to the light emitting element and include a first sub-wire; the first sub-wire includes a plurality of portions, adjacent two of the plurality of portions are spaced apart from each other by an opening in the light emitting region; at least a part of an orthographic projection of the opening on the array substrate does not overlap with an orthographic projection of the first electrode on the array substrate.Type: GrantFiled: June 23, 2020Date of Patent: January 31, 2023Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.Inventors: Tingliang Liu, Zhen Zhang, Ke Dai
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Patent number: 11537012Abstract: A substrate for a display device, the substrate includes a signal supply section that supplies a signal; a substrate section having an extended outer shape section and having a display area configured to display an image; a plurality of lead wires that extend along the extended outer shape section to the display area; and a circuit section that is placed so that the lead wires are interposed between the display area and the circuit section and that is composed of a plurality of unit circuits arranged along the extended outer shape section, wherein the plurality of unit circuits include a unit circuit having an extension section that extends away from the signal supply section so as to be interposed between a unit circuit that is adjacent to the unit circuit on a side opposite to the signal supply section and the lead wires.Type: GrantFiled: December 30, 2020Date of Patent: December 27, 2022Assignee: SHARP KABUSHIKI KAISHAInventor: Masahiro Yoshida
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Patent number: 11450724Abstract: A display panel, a method of manufacturing the same, and a display device. The display panel includes a substrate, and a first metal layer, an interlayer dielectric layer, and a second metal layer disposed away from the substrate. The first metal layer includes a preset along the preset a first power line extending in a direction, a via hole is formed in the interlayer dielectric layer, and the second metal layer includes a second power line extending in a predetermined direction, and the second power line is located above the first power line and passes through the lead The through hole is electrically connected to the first power line.Type: GrantFiled: November 5, 2019Date of Patent: September 20, 2022Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Weixin Ma, Caiqin Chen
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Patent number: 11393883Abstract: A display panel is provided including a substrate including a display area comprising first pixels and a sensor area including second pixels and a transmission portion. A display element layer is disposed on the substrate, the display element layer comprising the first pixels electrically connected to a first thin film transistor and the second pixels electrically connected to a second thin film transistor. A conductive layer is disposed between the second thin film transistor and the substrate, the conductive layer having two or more steps at an edge thereof.Type: GrantFiled: January 24, 2020Date of Patent: July 19, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Injun Bae, Hyunwook Choi, Donghwi Kim, Chulho Kim, Woori Seo, Jin Jeon
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Patent number: 11380688Abstract: A semiconductor device that can be miniaturized or highly integrated is provided. The semiconductor device includes a transistor and a capacitor. The transistor includes a metal oxide and a first conductor that is electrically connected to the metal oxide. The capacitor includes a first insulator which is provided over the metal oxide and which the first conductor penetrates; a second insulator provided over the first insulator and including an opening reaching the first insulator and the first conductor; a second conductor in contact with an inner wall of the opening, the first insulator, and the first conductor; a third insulator provided over the second conductor; and a fourth conductor provided over the third insulator. The first insulator has higher capability of inhibiting the passage of hydrogen than the second insulator.Type: GrantFiled: January 18, 2018Date of Patent: July 5, 2022Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yuichi Sato, Ryota Hodo, Yuta Iida, Tomoaki Moriwaka
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Patent number: 11327374Abstract: A display device includes a first direction, a plurality of pixels arranged in a second direction intersecting the first direction, at least one scanning signal line connected to the plurality of pixels, a scanning signal line driving circuit connected to the scanning line, the scanning signal line driving circuit includes a switch for outputting a signal to the scanning signal line, a first power supply line for providing a first voltage to the switch, a second power supply line for providing a second voltage smaller than the first voltage to the switch, and the switch is provided between the first power supply line and the second power supply line, a line width of the second power supply line is 4 times the line width of the first power supply line or more and 40 times the line width of the first power supply line or less.Type: GrantFiled: December 16, 2020Date of Patent: May 10, 2022Assignee: Japan Display Inc.Inventors: Masataka Ikeda, Gen Koide
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Patent number: 11329073Abstract: A display panel includes: a substrate; a thin film transistor layer, wherein the thin film transistor layer is disposed on the substrate an organic layer; and a via, wherein the via is disposed on the thin film transistor layer, and a part of the organic layer extends to the via.Type: GrantFiled: December 23, 2019Date of Patent: May 10, 2022Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Jinrong Zhao
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Patent number: 11315996Abstract: A display panel and a method of manufacturing thereof are provided. The display panel includes a first thin film transistor and a second thin film transistor connected in parallel, a storage capacitor, and a light emitting structure. A projection of the first thin film transistor on a light emitting surface of the display panel overlaps with a projection of the second thin film transistor on the light emitting surface of the display panel. The storage capacitor is located below the light emitting structure, and a projection of the storage capacitor on the light emitting surface of the display panel overlaps with a projection of the light emitting structure on the light emitting surface of the display panel.Type: GrantFiled: September 10, 2019Date of Patent: April 26, 2022Inventor: Baixiang Han
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Patent number: 11316002Abstract: A unit pixel includes a circuit structure, first and second wiring patterns, an interlayer insulating layer, a planarization layer, and a light emission structure. The first wiring pattern disposed on the circuit structure has a first bump structure. The interlayer insulating layer covers the circuit structure and the first wiring pattern. The second wiring pattern disposed on the interlayer insulating layer overlaps the first wiring pattern and has a second bump structure. The planarization layer covers the interlayer insulating layer and the second wiring pattern and includes a via-hole exposing at least a portion of the second wiring pattern. The light emission structure contacts the second wiring pattern through the via-hole. The first and second wiring patterns and the interlayer insulating layer form a capacitor, the light emission structure includes an OLED, and the capacitor is directly connected to an anode of the OLED.Type: GrantFiled: May 20, 2020Date of Patent: April 26, 2022Inventors: Ilhun Seo, Yun-Mo Chung, Jae-Wook Kang, Hojin Yoon, Daewoo Lee, Minseong Yi, Tak-Young Lee, Miyeon Cho
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Patent number: 11296128Abstract: An array substrate and a display device having the array substrate are disclosed. The array substrate includes a display area, a non-display area, a metal trace, a planarization structure layer, and a reinforcing layer. The non-display area includes a bendable region connected to the display area. The metal trace extends from the display area to the bendable region. The planarization structure layer covers the metal trace in the display area and the bendable region. The reinforcing layer is disposed on the planarization structure layer in the bendable region. In the array substrate and the display device with the array substrate of the invention, a water and oxygen barrier layer is only disposed in the display area, and functional layers are provided, therefore stresses during bending process can be reduced, and metal trace crack can be avoided.Type: GrantFiled: April 16, 2019Date of Patent: April 5, 2022Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Fuyang Zhang
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Patent number: 11281058Abstract: A liquid crystal display device is provided with a thin film transistor which includes a gate electrode film that is provided in a first electrode layer located over a first insulating layer, a semiconductor film that is disposed over the gate electrode film via a second insulating layer, a drain electrode and a source electrode that are provided in a second electrode layer located over the semiconductor film and are in contact with an upper surface of the semiconductor film, and a light blocking film that is disposed under the first insulating layer. At least a part thereof overlaps the semiconductor film and the gate electrode film in a plan view. One of the drain electrode and the source electrode is connected to a gate line, and the light blocking film is electrically connected to the source electrode.Type: GrantFiled: March 4, 2021Date of Patent: March 22, 2022Assignee: Japan Display Inc.Inventors: Takahiro Ochiai, Motoharu Miyamoto, Masahiro Hoshiba
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Patent number: 11275278Abstract: In an electro-optical device, inside an insulating layer, a cavity is provided which extend in a thickness direction at both sides in a width direction of a semiconductor layer and at both sides in a length direction of the semiconductor layer and surround the semiconductor layer in a plan view. The cavity is provided, in the thickness direction, from a position on the first substrate side relative to the semiconductor layer to a position on a pixel electrodes side relative to the semiconductor layer. The semiconductor layer is positioned behind at least one of a second light-shielding layer and the cavity when viewed from any direction on the first substrate side. The cavity is provided up to a position on the pixel electrode side relative to a gate electrode provided at the pixel electrode side relative to the semiconductor layer of a transistor, toward the pixel electrodes.Type: GrantFiled: April 16, 2019Date of Patent: March 15, 2022Assignee: SEIKO EPSON CORPORATIONInventors: Satoshi Ito, Takuto Watanabe
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Patent number: 11264443Abstract: A display substrate and a manufacturing method thereof, and a display panel are disclosed. The display substrate includes a base substrate and a pixel driving circuit on the base substrate; and the pixel driving circuit includes a driving transistor and a gate leading line, the driving transistor includes a gate electrode, the gate leading line is electrically connected to the gate electrode, and the gate leading line is between the gate electrode and the base substrate.Type: GrantFiled: March 29, 2019Date of Patent: March 1, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Li Wang
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Patent number: 11250786Abstract: The present disclosure relates to an array substrate. The array substrate may include a pixel unit. The pixel unit may include a third transistor, a sixth transistor, a light emitting device, and a boosting capacitor. The boosting capacitor may include a first electrode and a second electrode. A control terminal, a first terminal, and a second terminal of the third transistor may be electrically connected to a first node, a second node, and a third node, respectively. A control terminal, a first terminal and a second terminal of the sixth transistor may be electrically connected to an emission signal line, a first terminal of the light emitting device, and the second node, respectively. The first electrode and the second electrode of the boosting capacitor may be electrically connected to a gate line and the first node, respectively.Type: GrantFiled: December 24, 2019Date of Patent: February 15, 2022Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventor: Hongfei Cheng
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Patent number: 11176883Abstract: An organic light emitting diode (“OLED”) display includes a semiconductor layer on a substrate, first and second signal lines on the semiconductor layer, a shield layer on the first and second signal lines, a data line on the shield layer, and an OLED on the data line, where the transistor includes a driving transistor, a second transistor connected to the first signal line and the data line, and a third transistor including a gate electrode connected to the first signal line, a third electrode connected to a second electrode of the driving transistor, and a fourth electrode connected to a gate electrode of the driving transistor, the shield layer includes an overlapped portion overlapping at least a part of the connection portion and non-overlaps the second transistor, and the shield layer is separated from the first and second signal lines with a gap therebetween in a plan view.Type: GrantFiled: November 26, 2019Date of Patent: November 16, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji Su Na, Joong-Soo Moon, Chae Han Hyun, Yang Wan Kim
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Patent number: 11152449Abstract: A display panel may include the following elements: a substrate including an opening area, a display area surrounding the opening area, and a first non-display area between the opening area and the display area; a data line positioned at a first side relative to the opening area; a first scan line; a second scan line; a first pixel connected to the data line and the first scan line; a second pixel connected to the data line and the second scan line; a first emission control line connected to the first pixel; a connecting section positioned on the first non-display area; a second emission control line connected to the second pixel and connected through the connecting section to the first emission control line; and an emission control driver configured to simultaneously provide emission control signals to the first emission control line and the second emission control line.Type: GrantFiled: November 26, 2019Date of Patent: October 19, 2021Inventors: Hyunae Park, Jaewon Kim, Hyungjun Park, Junyong An, Nuree Um, Ilgoo Youn, Jieun Lee, Donghyeon Jang, Seunghan Jo, Junyoung Jo
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Patent number: 11145254Abstract: An organic light emitting display device includes a display panel and a display driver. Each of the pixels included in the display panel has a first switching element, a second switching element, and a third switching element that are switching elements of a first type, and the fourth switching element that is the switching element of a second type different from the first type.Type: GrantFiled: September 5, 2019Date of Patent: October 12, 2021Assignee: Samsung Display Co., Ltd.Inventor: Hui Nam
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Patent number: 11127803Abstract: A display panel includes an array substrate and a package substrate disposed opposite to each other, wherein, the array substrate includes a plurality of pixel units arranged in an array, and at least one of the pixel units includes a driving transistor. Further, the package substrate includes a first electrode and a second electrode disposed opposite to each other and an insulating layer located between the two electrodes. Wherein, the first electrode is electrically connected to the first terminal of the driving transistor, and the second electrode is electrically connected to the control terminal of the driving transistor.Type: GrantFiled: June 8, 2018Date of Patent: September 21, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Hongfei Cheng, Yuxin Zhang
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Patent number: 11108006Abstract: A display apparatus includes a plurality of pixels each including a substrate on which are disposed: an interlayer insulating layer; a driving thin film transistor in which a driving semiconductor layer and a driving gate electrode are each disposed between the substrate and the first interlayer insulating layer; a first capacitor in which a first electrode, a first dielectric pattern and a second electrode are sequentially stacked, the first electrode being connected to the driving gate electrode; and a plurality of contact plugs extended through a thickness of the interlayer insulating layer, with which the driving thin film transistor and the first capacitor are respectively connected to electrodes outside thereof. Lateral surfaces of the first dielectric pattern are covered by the interlayer insulating layer, and the first dielectric pattern within the first capacitor is disposed spaced apart from each of the contact plugs.Type: GrantFiled: December 14, 2018Date of Patent: August 31, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jintaek Kim, Kiwan Ahn, Jinwoo Lee, Donghyun Kim, Pilsuk Lee
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Patent number: 11088120Abstract: A method for making a micro LED display panel not requiring high-accuracy or individual positioning includes providing a carrier substrate with micro LEDs, providing a TFT substrate including a driving circuit, and forming a conductive connecting element, an insulating layer, and a contact electrode layer on the TFT substrate. The insulating layer and the contact electrode layer are patterned to define a through hole, the first electrode is placed against the contact electrode layer, and different voltages Vref and Vdd are applied to the contact electrode layer and to the conductive connecting element respectively, creating an electrostatic attraction. The micro LEDs and the first electrode are transferred from the carrier substrate onto the TFT substrate; and the conductive connecting element is bonded to the first electrode. The method of making is simple. A micro LED display panel made by the method is also provided.Type: GrantFiled: April 11, 2019Date of Patent: August 10, 2021Assignee: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Wei-Chih Chang, Kuo-Sheng Lee, Chung-Wen Lai, Po-Fu Chen
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Patent number: 11018165Abstract: A manufacturing method of an array substrate and the array substrate are provided. The method comprises: forming an active layer on a substrate; forming an insulation layer on the active layer; forming a first metal layer on the insulation layer; forming an interlayer dielectric layer and a pixel electrode layer on the first metal layer by a same mask; forming a second metal layer on the interlayer dielectric layer, wherein the second metal layer comprises a source electrode, a drain electrode, and a touch signal line; and forming a patterned protective layer and a patterned common electrode layer on the second metal layer.Type: GrantFiled: November 6, 2019Date of Patent: May 25, 2021Inventors: Yuan Yan, Fei Ai, Peng He, Peng Lu
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Patent number: 10985228Abstract: Embodiments of the present disclosure provide a flexible display panel, a method of manufacturing the flexible display panel, and a flexible display apparatus. The flexible display panel comprises: a reinforced insulating layer of an inorganic material, wherein the reinforced insulating layer comprises a reinforced region, and is formed with a reinforcing hole in the reinforced region; an organic material filled in the reinforcing hole; and at least one insulating film which is disposed on at least one of both sides of the reinforced insulating layer and which is in contact with the reinforced insulating layer at least in the reinforced region.Type: GrantFiled: September 17, 2018Date of Patent: April 20, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Feng Zhang, Wenqu Liu, Zhijun Lv, Liwen Dong, Shizheng Zhang, Ning Dang