In Combination With Capacitor Element (e.g., Dram) Patents (Class 257/71)
  • Patent number: 11450724
    Abstract: 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: Grant
    Filed: November 5, 2019
    Date of Patent: September 20, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Weixin Ma, Caiqin Chen
  • Patent number: 11393883
    Abstract: 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: Grant
    Filed: January 24, 2020
    Date of Patent: July 19, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Injun Bae, Hyunwook Choi, Donghwi Kim, Chulho Kim, Woori Seo, Jin Jeon
  • Patent number: 11380688
    Abstract: 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: Grant
    Filed: January 18, 2018
    Date of Patent: July 5, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuichi Sato, Ryota Hodo, Yuta Iida, Tomoaki Moriwaka
  • Patent number: 11327374
    Abstract: 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: Grant
    Filed: December 16, 2020
    Date of Patent: May 10, 2022
    Assignee: Japan Display Inc.
    Inventors: Masataka Ikeda, Gen Koide
  • Patent number: 11329073
    Abstract: 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: Grant
    Filed: December 23, 2019
    Date of Patent: May 10, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jinrong Zhao
  • Patent number: 11315996
    Abstract: 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: Grant
    Filed: September 10, 2019
    Date of Patent: April 26, 2022
    Inventor: Baixiang Han
  • Patent number: 11316002
    Abstract: 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: Grant
    Filed: May 20, 2020
    Date of Patent: April 26, 2022
    Inventors: Ilhun Seo, Yun-Mo Chung, Jae-Wook Kang, Hojin Yoon, Daewoo Lee, Minseong Yi, Tak-Young Lee, Miyeon Cho
  • Patent number: 11296128
    Abstract: 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: Grant
    Filed: April 16, 2019
    Date of Patent: April 5, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Fuyang Zhang
  • Patent number: 11281058
    Abstract: 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: Grant
    Filed: March 4, 2021
    Date of Patent: March 22, 2022
    Assignee: Japan Display Inc.
    Inventors: Takahiro Ochiai, Motoharu Miyamoto, Masahiro Hoshiba
  • Patent number: 11275278
    Abstract: 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: Grant
    Filed: April 16, 2019
    Date of Patent: March 15, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Satoshi Ito, Takuto Watanabe
  • Patent number: 11264443
    Abstract: 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: Grant
    Filed: March 29, 2019
    Date of Patent: March 1, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Li Wang
  • Patent number: 11250786
    Abstract: 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: Grant
    Filed: December 24, 2019
    Date of Patent: February 15, 2022
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Hongfei Cheng
  • Patent number: 11176883
    Abstract: 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: Grant
    Filed: November 26, 2019
    Date of Patent: November 16, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Su Na, Joong-Soo Moon, Chae Han Hyun, Yang Wan Kim
  • Patent number: 11152449
    Abstract: 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: Grant
    Filed: November 26, 2019
    Date of Patent: October 19, 2021
    Inventors: Hyunae Park, Jaewon Kim, Hyungjun Park, Junyong An, Nuree Um, Ilgoo Youn, Jieun Lee, Donghyeon Jang, Seunghan Jo, Junyoung Jo
  • Patent number: 11145254
    Abstract: 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: Grant
    Filed: September 5, 2019
    Date of Patent: October 12, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hui Nam
  • Patent number: 11127803
    Abstract: 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: Grant
    Filed: June 8, 2018
    Date of Patent: September 21, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongfei Cheng, Yuxin Zhang
  • Patent number: 11108006
    Abstract: 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: Grant
    Filed: December 14, 2018
    Date of Patent: August 31, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jintaek Kim, Kiwan Ahn, Jinwoo Lee, Donghyun Kim, Pilsuk Lee
  • Patent number: 11088120
    Abstract: 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: Grant
    Filed: April 11, 2019
    Date of Patent: August 10, 2021
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Wei-Chih Chang, Kuo-Sheng Lee, Chung-Wen Lai, Po-Fu Chen
  • Patent number: 11018165
    Abstract: 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: Grant
    Filed: November 6, 2019
    Date of Patent: May 25, 2021
    Inventors: Yuan Yan, Fei Ai, Peng He, Peng Lu
  • Patent number: 10985228
    Abstract: 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: Grant
    Filed: September 17, 2018
    Date of Patent: April 20, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Feng Zhang, Wenqu Liu, Zhijun Lv, Liwen Dong, Shizheng Zhang, Ning Dang
  • Patent number: 10976628
    Abstract: A display device includes: a gate line (GL); a semiconductor pattern (SP) on the GL; a data line (DL); a voltage division reference line (VDRL); and first to third switching elements (SWE) overlapping the SP. The first SWE includes a first source electrode (SE) connected to the DL, a first drain electrode (DE) spaced apart from the first SE, and a first gate electrode (GE) connected to the GL. The second SWE includes a second SE connected to the DL, a second DE spaced apart from the second SE, and a second GE connected to the GL. The third SWE includes a third SE connected to the VDRL, a third DE connected to the second SE, and a third GE connected to the GL. The first SE, the first DE, the second SE, and the second DE are sequentially arranged across and on the SP in a first direction.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: April 13, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung Ho Kim, Byoung Sun Na, Seong Young Lee
  • Patent number: 10872984
    Abstract: A thin-film transistor (TFT), an array substrate, a manufacturing method thereof and a display device are provided. The TFT includes an active layer, a gate electrode, a first source/drain electrode and a second source/drain electrode. The active layer includes a first channel region and a second channel region, a first source/drain area between the first channel region and the second channel region, and a second source/drain area opposite to the first source/drain area through the first channel region or the second channel region. The gate electrode includes a first gate electrode and a second gate electrode which are respectively overlapped with the first channel region and the second channel region. The first source/drain electrode and the second source/drain electrode are respectively electrically connected with the first source/drain area and the second source/drain area of the active layer.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: December 22, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Jinjin Xue, Dawei Shi, Haifeng Xu, Lu Yang, Wentao Wang, Lei Yan, Lei Yao, Fang Yan, Xiaowen Si
  • Patent number: 10861978
    Abstract: A thin film transistor according to an exemplary embodiment of the present invention includes an oxide semiconductor. A source electrode and a drain electrode face each other. The source electrode and the drain electrode are positioned at two opposite sides, respectively, of the oxide semiconductor. A low conductive region is positioned between the source electrode or the drain electrode and the oxide semiconductor. An insulating layer is positioned on the oxide semiconductor and the low conductive region. A gate electrode is positioned on the insulating layer. The insulating layer covers the oxide semiconductor and the low conductive region. A carrier concentration of the low conductive region is lower than a carrier concentration of the source electrode or the drain electrode.
    Type: Grant
    Filed: December 24, 2018
    Date of Patent: December 8, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong Su Lee, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na, Sang Ho Park, Se Hwan Yu, Chong Sup Chang, Dae Ho Kim, Jae Neung Kim, Myoung Geun Cha, Sang Gab Kim, Yu-Gwang Jeong
  • Patent number: 10852600
    Abstract: A liquid crystal device as an electrooptical device includes a TFT as a transistor, a pixel electrode provided correspondingly to the TFT, a storage capacitor in which a first capacitance electrode, a capacitance insulating layer, and a second capacitance electrode are stacked in order, and a contact portion as a first contact portion configured to electrically connect a semiconductor layer of the TFT and the pixel electrode. In the liquid crystal device, the second capacitance electrode includes a first conductive layer and a second conductive layer stacked on the first conductive layer, and the contact portion is configured of the second conductive layer and is provided so as to be in contact with a drain region of the semiconductor layer.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: December 1, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yohei Sugimoto
  • Patent number: 10818229
    Abstract: An organic light-emitting display apparatus including an organic light-emitting diode emitting visible light, a driving thin film transistor driving the organic light-emitting diode, and a compensation thin film transistor. The compensation thin film transistor includes a compensation gate electrode, a compensation semiconductor layer, a compensation source electrode, and a compensation drain electrode. The compensation gate electrode includes a first gate electrode, and a second gate electrode electrically connected to the first gate electrode. The compensation drain electrode is electrically connected to the driving gate electrode of the driving thin film transistor.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: October 27, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Juwon Yoon, Iljeong Lee, Jiseon Lee, Choongyoul Im
  • Patent number: 10714556
    Abstract: A transistor substrate may include a base substrate, and a switching transistor and a driving transistor provided on the base substrate. The driving transistor includes: an active pattern provided on the base substrate and including a source region, a drain region spaced apart from the source region, and a channel region provided between the source region and the drain region; a gate electrode at least partially overlapping the active pattern; a gate insulating film provided between the active pattern and the gate electrode; a source electrode insulated from the gate electrode and connected to the source region; a drain electrode insulated from the gate electrode and connected to the drain region; and at least one dummy hole adjacent to the channel region.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: July 14, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Woong Hee Jeong, Tae Hoon Yang, Jong Chan Lee
  • Patent number: 10714552
    Abstract: An active matrix substrate (1001) has multiple pixel areas. At least one pixel area includes a pixel TFT (20), a pixel electrode (15), a first circuit TFT (10), and drive circuit wiring lines (L1 to L3) that are connected to the first circuit TFT. The pixel TFT (20) and the first circuit TFT (10) are oxide semiconductor TFTs. The pixel electrode (15) is formed from an upper transparent conductive film. The drive circuit wiring line includes a transparent wiring line portion (L1 and L2) that is formed from a lower transparent conductive film which is positioned closer to a substrate 1 than the upper transparent conductive film. At least one of a source electrode (8) and a drain electrode (9) of the first circuit TFT (10) is formed from the lower transparent conductive film.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: July 14, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Hiroshi Matsukizono
  • Patent number: 10707450
    Abstract: Disclosed is an OLED thin film packaging structure, including: a TFT substrate, an OLED, a first barrier layer, a first buffer layer, and a second barrier layer. The OLED is disposed on the TFT substrate. The first barrier layer is disposed on four sides and an upper surface of the OLED. The first buffer layer is disposed on an upper surface of the first barrier layer, and the second barrier layer covers the first barrier layer and the first buffer layer. An OLED thin film packaging method includes steps of: preparing a first barrier layer and a first buffer layer by using a first mask, and preparing a second barrier layer by using a second mask, thereby reducing a quantity of times for changing a mask, reducing a quantity of particles, and improving a thin film packaging effect.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: July 7, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Wei Yu
  • Patent number: 10700150
    Abstract: 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 be 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: Grant
    Filed: April 23, 2018
    Date of Patent: June 30, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ilhun Seo, Yun-Mo Chung, Jae-Wook Kang, Hojin Yoon, Daewoo Lee, Minseong Yi, Tak-Young Lee, Miyeon Cho
  • Patent number: 10673001
    Abstract: A flexible display substrate is disclosed. The flexible display substrate includes a flexible substrate, a gate, a source and drain and a plurality of conductive wirings on the flexible substrate. Each conductive wiring is provided with a plurality of grooves in a bending area of the flexible display substrate, so that the damage resistance of the conductive wirings during bending is improved. A display device including the flexible display substrate and a method for fabricating the flexible display substrate are also disclosed.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: June 2, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanan Niu, Chunyan Li, Hongwei Tian
  • Patent number: 10656456
    Abstract: In a transmissive-type electro-optical device, a plurality of pixel electrodes each overlap with each of a plurality of openings surrounded by a plurality of first light-shielding portions extending in a first direction and a plurality of second light-shielding portions extending in a second direction. A width of the first light-shielding portion is greater than a width of the second light-shielding portion. In the opening, a size thereof in the second direction is smaller than a size thereof in the first direction. A center of each of the pixel electrodes is shifted toward the pre-tilt orientation along the second direction from a center of each of the openings.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: May 19, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Shuji Terada, Masahito Yoshii
  • Patent number: 10573243
    Abstract: A display device includes: a plurality of pixels substantially in a matrix form including a plurality of pixel columns in a first direction and a plurality of pixel rows in a second direction intersecting the first direction; a plurality of data lines connected to the pixel columns, respectively; a plurality of scan lines extending in the second direction; and a power line which supplies a driving power voltage to the pixels. Each of the data lines includes a first sub-data line disposed at a side of a corresponding pixel column, and a second sub-data line disposed at an opposite side of the corresponding pixel column, and each of the pixels includes a first transistor and a display element connected to the first transistor, where the power line overlaps with at least a portion of the first transistor.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: February 25, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun Won Choi, Jun Yong An, Yun Kyeong In, Won Mi Hwang
  • Patent number: 10573842
    Abstract: An organic electroluminescent device, a method for manufacturing the same, and a display device. The organic electroluminescent device includes: a base substrate comprising a plurality of pixel regions thereon; a pixel electrode layer; a planarization layer, formed with a protrusion on a surface of the planarization layer facing away from the base substrate and at a position corresponding to at least one side edge of a periphery of each pixel region; an anode layer, the anode layer being electrically connected to the pixel electrode layer through a via hole, and the anode layer covering the pixel region and covering a side surface of the protrusion facing the pixel region; a light emitting layer, a height of a surface of the light emitting layer being less than a height of the anode layer covering the side surface of the protrusion; a pixel definition layer; and a cathode layer.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: February 25, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO. LTD.
    Inventors: Yangsheng Liu, Hwang Kim
  • Patent number: 10541379
    Abstract: An organic electroluminescent device, a method for manufacturing the same, and a display device. The organic electroluminescent device includes: a base substrate comprising a plurality of pixel regions thereon; a pixel electrode layer; a planarization layer, formed with a protrusion on a surface of the planarization layer facing away from the base substrate and at a position corresponding to at least one side edge of a periphery of each pixel region; an anode layer, the anode layer being electrically connected to the pixel electrode layer through a via hole, and the anode layer covering the pixel region and covering a side surface of the protrusion facing the pixel region; a light emitting layer, a height of a surface of the light emitting layer being less than a height of the anode layer covering the side surface of the protrusion; a pixel definition layer; and a cathode layer.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: January 21, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO. LTD.
    Inventors: Yangsheng Liu, Hwang Kim
  • Patent number: 10529294
    Abstract: In one embodiment, a display device includes a pair of substrates including a display area in which pixels are arranged, pixel electrodes and a memories provided in the pixels, signal lines supplied with digital signals, switching elements connecting the memories and the signal lines, scanning lines supplied with scanning signals, and first and second driver units. The first and second driver units are provided in a peripheral area. The first driver unit includes first circuit units connected to the signal lines. The first circuit units include first and second circuits. The first and second circuits are arranged in a second direction intersecting with a first direction, and are out of alignment in the first direction.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: January 7, 2020
    Assignee: Japan Display Inc.
    Inventor: Takehiro Shima
  • Patent number: 10522573
    Abstract: According to one embodiment, a display device includes a pixel, a scanning line, a signal line, a pixel electrode, a first switching element, and a capacitance line producing capacitance together with the pixel electrode. The first switching element includes a first semiconductor layer connected to the signal line and the pixel electrode, and a first gate electrode opposed to the first semiconductor layer and connected to the scanning line. The capacitance line includes a first portion opposed to the scanning line and extending in an extension direction of the scanning line, a second portion connected to the first portion and opposed to the pixel electrode.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: December 31, 2019
    Assignee: Japan Display Inc.
    Inventors: Makoto Uchida, Takanori Tsunashima
  • Patent number: 10481427
    Abstract: An array substrate, a manufacturing method, a display panel and an electronic device are provided. The array substrate includes a substrate, and a gate line, an insulation layer, an active layer and a data line which are formed on the substrate. The insulation layer is provided on the gate line, the data line is provided on the gate line through the insulation layer and is crossed with the gate line, and the active layer is provided between the gate line and the data line in a direction perpendicular to the substrate, and a first shield layer is provided on the gate line through the insulation layer, and the first shield layer covers the gate line in the direction perpendicular to the substrate and is electrically insulated from the gate line, the active layer and the data line.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: November 19, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventor: Dawei Shi
  • Patent number: 10466554
    Abstract: The present disclosure provides a substrate, a display panel and a display device, for increasing the display viewing angle of the display device, reducing chromatic aberration, and improving product quality.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: November 5, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pan Li, Hongfei Cheng, Yong Qiao, Jianbo Xian
  • Patent number: 10409115
    Abstract: The disclosure provides a liquid crystal display panel, an array substrate and a manufacturing method thereof. In the method, controllable resistance spacer layers are formed on at least one of a source doped region and a drain doped region of a low temperature polysilicon active layer. When a turn-on signal is not applied to the gate layer, the controllable resistance spacer layers serve as a blocking action for a flowing current; and when the turn-on signal is applied to the gate layer, the controllable resistance spacer layers serve as a conducting action for the flowing current, such that contact regions formed of the controllable resistance spacer layers are respectively connected with the corresponding source layer and the corresponding drain through the controllable resistance spacer layers. Therefore, the disclosure is capable of effectively decreasing a leakage of a thin film transistor.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: September 10, 2019
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd, Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventor: Juncheng Xiao
  • Patent number: 10403701
    Abstract: Subpixels of R, G, and B corresponding to a scanning line as a first conductive layer extended in a row direction and a data transfer line as a second conductive layer extended in a column direction are provided. A plurality of transistors in the subpixel of each of the colors is disposed along the column direction, and a reflective layer in the subpixel of at least one color is disposed along the row direction so as to overlap any transistor of subpixels of each display color. A center position of a disposition region of a reflective layer in one pixel unit including the subpixels of R, G, and B is different from a center position of a disposition region of a transistor in one pixel unit.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: September 3, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Hitoshi Ota, Ryoichi Nozawa
  • Patent number: 10339858
    Abstract: A pixel circuit, a drive method, a display panel and a display device are provided. A switch transistor is arranged between a first power supply signal and an input terminal (a source) of a drive transistor. When a drive circuit is at a second detection period during which drive current of a light emitting element is detected, the switch transistor is controlled to be turned off, such that the first power supply signal is disconnected from the source of the drive transistor. In this case, no current flows through the light emitting element, and therefore the light emitting element does not emit light, thereby solving a problem in the conventional technology that the light emitting element is lighted and it is not dark in a dark state when drive current of the pixel circuit is detected.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: July 2, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yue Li, Gang Liu
  • Patent number: 10319797
    Abstract: An organic light-emitting display apparatus includes: a substrate including a display area and a peripheral area at an outer side of the display area; a pixel electrode disposed in the display area of the substrate; a pixel-defining layer disposed on the pixel electrode and exposing at least a portion of the pixel electrode; an intermediate layer disposed on the pixel electrode; an opposite electrode disposed on the intermediate layer; a first conductive layer disposed in the peripheral area of the substrate and including at least one opening; a first block structure and a second block structure disposed on the first conductive layer and separated from each other with the at least one opening therebetween; and an encapsulation structure disposed on the opposite electrode in the display area and the peripheral area.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: June 11, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Changmok Kim, Jinho Kwack
  • Patent number: 10304395
    Abstract: In one embodiment, a display device includes a pair of substrates including a display area in which pixels are arranged, pixel electrodes and a memories provided in the pixels, signal lines supplied with digital signals, switching elements connecting the memories and the signal lines, scanning lines supplied with scanning signals, and first and second driver units. The first and second driver units are provided in a peripheral area. The first driver unit includes first circuit units connected to the signal lines. The first circuit units include first and second circuits. The first and second circuits are arranged in a second direction intersecting with a first direction, and are out of alignment in the first direction.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: May 28, 2019
    Assignee: Japan Display Inc.
    Inventor: Takehiro Shima
  • Patent number: 10276601
    Abstract: According to one embodiment, a display device includes an insulating substrate, a first transistor including a first semiconductor layer of silicon and a first electrode, a first insulating layer provided above the first semiconductor layer, a second transistor including a second semiconductor layer of an oxide semiconductor, a second electrode and a conductive layer electrically connected to the second semiconductor layer, and a second insulating layer provided above the first insulating layer and the second semiconductor layer, the first electrode being electrically connected to the first semiconductor layer in a first hole, and the second electrode being in contact with the conductive layer in a second hole.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: April 30, 2019
    Assignee: Japan Display Inc.
    Inventors: Noriyoshi Kanda, Arichika Ishida, Masayoshi Fuchi
  • Patent number: 10269925
    Abstract: The present invention provides a manufacture method of a Low Temperature Poly-silicon TFT substrate and a Low Temperature Poly-silicon TFT substrate, in which by locating one heat sink layer under the amorphous silicon layer in advance, the difference of the crystallizations of the polysilicons in the drive area and the display area can exist after implementing an Excimer Laser Annealing process to the amorphous silicon layer, and in the drive area, the polysilicon with the larger lattice dimension is formed to promote the electron mobility; the fractured crystals can be achieved in the crystallization process of the display area to form the polysilicon with the smaller lattice dimension for ensuring the uniformity of the grain boundary and raising the uniformity of the current, and thus, the electrical property demands for the different TFTs can be satisfied to raise the light uniformity of the OLED.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: April 23, 2019
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zhandong Zhang, Fuhsiung Tang
  • Patent number: 10262606
    Abstract: According to one embodiment, a display device includes a pair of substrates including a display area in which pixels are arranged, pixel electrodes and memories provided in the pixels, signal lines supplied with digital signals, switching elements connecting the memories and the signal lines, scanning lines supplied with scanning signals, a first driver unit, and a second driver unit. The first driver unit is provided in a peripheral area around the display area, and supplies the digital signal to the signal line. The second driver unit is provided in the peripheral area, and supplies the scanning signal to the scanning line. In the display device, at least a part of the first driver unit is provided between the display area and the second driver unit.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: April 16, 2019
    Assignee: Japan Display Inc.
    Inventor: Takehiro Shima
  • Patent number: 10228788
    Abstract: A performance of a display device having an input device is improved. A display device includes: an electro-optical layer; a first driving electrode and a second driving electrode which drives the electro-optical layer; a driver chip which outputs a video signal; a switch circuit which is arranged outside the driver chip, which selects a potential to be supplied to the second driving electrode, and which includes a first switch element and a second switch element; a shift register circuit connected to the switch circuit; and a detection circuit which detects that an object is close or in contact. Each of the first switch element and the second switch element is selectively turned ON or OFF by the shift register circuit. The detection circuit is electrically connected to the first switch element and the second switch element.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: March 12, 2019
    Assignee: Japan Display Inc.
    Inventors: Tadayoshi Katsuta, Koji Noguchi, Daisuke Ito, Yasuyuki Teranishi
  • Patent number: 10209507
    Abstract: An electrowetting display device comprises a first support plate comprising a first electrode and a second support plate. A seal connects the first support plate to the second support plate. A first fluid and a second fluid, immiscible with the first fluid, are located between the first and second support plates. A second electrode is in electrical contact with the second fluid. An electrical connector connects the first electrode to the second electrode. A barrier structure at least partly surrounds the electrical connector. The electrical connector and the barrier structure are separated from the first fluid and the second fluid by the seal.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: February 19, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Toru Sakai, Abhishek Kumar, Jeroen Cornelis Van Der Gaag
  • Patent number: 10128224
    Abstract: A circuit board comprises a mother substrate including first and second scribing regions, the first scribing region extending in first direction, the second scribing region extending in second direction, the first and second directions crossing each other, the mother substrate including chip regions defined by the first and second scribing regions, and a through via penetrating the chip regions of the mother substrate. The mother substrate comprises a first alignment pattern protruding from a top surface of the mother substrate. The first alignment pattern is disposed on at least one of the scribing regions.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: November 13, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-Sik Park, Dong-Wan Kim, Jung-Hoon Han
  • Patent number: 10096663
    Abstract: A manufacturing method of an array substrate, an array substrate and a display device are provided. The manufacturing method of the array substrate comprises: forming a first conductive thin film (100) on a base substrate (1); and patterning the first conductive thin film (100), to form a pattern of a cathode (11) on a first region (11) of the base substrate (1), and form a pattern of a gate electrode (4) on a second region (12) of the base substrate (1). Complexity and process time of a fabrication process of an array substrate can be reduced, a fabrication process of an organic electroluminescent panel can be simplified, and production cost can be reduced, by forming a cathode layer of a light-emitting diode and a gate electrode layer of a thin film transistor in different regions of the base substrate at the same time by one patterning process.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: October 9, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zheng Liu, Xiaoyong Lu, Xiaolong Li, Chien Hung Liu, Chunping Long