Driving Means Integral To Substrate Patents (Class 345/80)
  • Patent number: 12230204
    Abstract: Provided are a pixel circuit, a driving method, and a display device. The pixel circuit includes a light-emitting element, drive circuit, control circuit, first initialization circuit, first light-emitting control circuit and second light-emitting control circuit, wherein the control circuit causes a control terminal of the drive circuit to be electrically connected to a connection node under the control of a first scanning signal; the first initialization circuit writes a first initial voltage to the connection node under the control of a reset control signal; the first light-emitting control circuit causes a first voltage terminal to be conductively connected to a first terminal of the drive circuit under the control of a first light-emitting control signal; the second light-emitting control circuit causes a second terminal of the drive circuit to be conductively connected to a first electrode of the light-emitting element under control of a second light-emitting control signal.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: February 18, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Li Wang, Libin Liu
  • Patent number: 12230206
    Abstract: A pixel circuit according to an embodiment and a display device including the same are disclosed.
    Type: Grant
    Filed: October 13, 2023
    Date of Patent: February 18, 2025
    Assignee: LG Display Co., Ltd.
    Inventors: Do Young Jung, Byeong Seong So
  • Patent number: 12219840
    Abstract: A display apparatus, a display substrate and a manufacturing method therefor are provided. The display substrate comprises: a driving back plate, having a first driving area and a second driving area; a first electrode pattern, comprising a plurality of transparent first electrodes and a second electrode; a light emitting layer, comprising a first light emitting portion in the first driving area and a second light emitting portion in the second driving area; a second electrode pattern, comprising a plurality of transparent third electrodes in the first driving area and a fourth electrode located in the second driving area. The first electrode, the first light emitting portion and the third electrode corresponding to the first driving area constitute a Passive matrix organic light-emitting diode structure.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: February 4, 2025
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGIES GROUP CO., LTD.
    Inventor: Yang Wang
  • Patent number: 12217689
    Abstract: A pixel circuit comprises a first switch element comprising a first electrode to which an initialization voltage is applied, a gate electrode to which a initialization pulse is applied, and a second electrode connected to a second node; a second switch element comprising a first electrode connected to a third node or a fourth node, a gate electrode to which a sensing pulse is applied, and a second electrode to which a reference voltage is applied; a third switch element comprising a first electrode to which a data voltage is applied, a gate electrode to which a scan pulse is applied, and a second electrode connected to the second node; and a fourth switch element comprising a first electrode connected to the third node, a gate electrode to which a first emission control pulse is applied, and a second electrode connected to the fourth node.
    Type: Grant
    Filed: December 6, 2023
    Date of Patent: February 4, 2025
    Assignee: LG Display Co., Ltd.
    Inventors: Ki Min Son, Chang Hee Kim, Seok Noh
  • Patent number: 12199229
    Abstract: A pixel may include first and second areas sectioned from each other in a first direction; 1-1-th to 4-1-th electrodes successively arranged in the first area in a second direction intersecting the first direction; 1-2-th to 4-2-th electrodes successively arranged in the second area in the second direction; light emitting elements disposed between two adjacent electrodes of the 1-1-th to 4-1-th electrodes of the first area; light emitting elements disposed between two adjacent electrodes of the 1-2-th to 4-2-th electrodes of the second area; a first conductive pattern disposed in the first area, and electrically connecting the 2-1-th and 3-1-th electrodes; a second conductive pattern disposed over the first and second areas, and electrically connecting the 4-1-th electrode of the first area with the 1-2-th electrode of the second area; and a third conductive pattern disposed in the second area and electrically connecting the 2-2-th and 3-2-th electrodes.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: January 14, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Xinxing Li, Dae Hyun Kim, Hee Keun Lee
  • Patent number: 12165589
    Abstract: A pixel circuit, a driving method, and a display panel. The pixel circuit includes a driving module, a data write module, a first compensation module, a second compensation module, a light-emitting module, a storage module, and a coupling module. The data write module is configured to write a voltage related to a data voltage to a control terminal of the driving module. The driving module is configured to provide a drive signal for the light-emitting module according to the voltage of the control terminal to drive the light-emitting module to emit light. A first terminal of the second compensation module is connected to the control terminal of the driving module, a second terminal of the second compensation module is connected to a first terminal of the first compensation module, and a second terminal of the first compensation module is connected to a first terminal of the driving module.
    Type: Grant
    Filed: July 11, 2023
    Date of Patent: December 10, 2024
    Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.
    Inventors: Enqing Guo, Cuili Gai, Kangguan Pan, Junfeng Li, Rubo Xing, Fa-Hsyang Chen
  • Patent number: 12153751
    Abstract: An electronic device includes a display panel, an input sensor that is disposed on the display panel and that includes a first sensing electrode and a second sensing electrode that crosses the first sensing electrode, and an optical sensor disposed on the input sensor. The optical sensor includes a photo-electrode disposed on one of the first sensing electrode and the second sensing electrode and a light receiving element that electrically connects one of the first sensing electrode to the second sensing electrode and the photo-electrode.
    Type: Grant
    Filed: December 24, 2022
    Date of Patent: November 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyunjee Jeon, Sanghyun Lim
  • Patent number: 12133423
    Abstract: A display apparatus includes first and second subpixel electrodes on a planarization layer including first and second via holes. The first subpixel includes a first pixel definition layer including a first opening exposing a portion of a first pixel electrode corresponding to a first emission portion. The first pixel electrode is connected to a first pixel circuit through the first via hole. The second subpixel includes a second pixel definition layer including a second opening exposing a portion of a second pixel electrode corresponding to a second emission portion. The second pixel electrode is connected to a second pixel circuit through the second via hole. A second distance defined as a shortest distance from an inner surface of the second opening to the second via hole is greater than a first distance defined as a shortest distance from an inner surface of the first opening to the first via hole.
    Type: Grant
    Filed: January 16, 2023
    Date of Patent: October 29, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyeonbum Lee, Jinwhan Jung
  • Patent number: 12125446
    Abstract: A method for operating a display comprising a plurality of emission diodes. For each emission diode, an output brightness of the emission diode is monitored over a range of compliance voltages. Based on the monitored output brightness of the emission diode, an inflection voltage is determined. At the inflection voltage, increasing a commanded compliance voltage does not yield an above-threshold increase in output brightness. Further, decreasing the commanded compliance voltage from the inflection voltage yields an above-threshold decrease in output brightness. In response to receiving a request for the emission diode to operate at a peak output brightness, an applied compliance voltage is commanded that is within a threshold voltage of the inflection voltage.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: October 22, 2024
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Gregory Theodore Gibson, Martin Francis Galinski, III
  • Patent number: 12092833
    Abstract: A head-mounted display device includes a body, a fan, a first valve, and a first shape memory alloy element. The body is configured to be worn on a face of a user. The body has an air channel, an air outlet, and a first air inlet. The first air inlet is communicated with the air outlet through the air channel. The fan is disposed in the air channel and is configured to drive air inside the air channel to flow. The first valve is disposed in the air channel. The first shape memory alloy element is connected between the first valve and the body, and is configured to move the first valve to adjust airflow inside the air channel.
    Type: Grant
    Filed: December 23, 2022
    Date of Patent: September 17, 2024
    Assignee: HTC Corporation
    Inventors: Li-Hsun Chang, Kuan-Ying Ou
  • Patent number: 12067918
    Abstract: A display device includes a data line, a pixel electrically connected to the data line, a data driver for outputting a data voltage, and a transmitter electrically connected between an output terminal of the data driver and the data line. The transmitter may transmit an instance of the data voltage to the data line in a first period. The transmitter may amplify a second instance of the data voltage to generate a reference voltage and then transmit the reference voltage to the data line in a second period different from the first period. The pixel includes a light emitting element for emitting light in response to the first instance of the data voltage. A voltage level of the reference voltage may be higher than a voltage level of the data voltage.
    Type: Grant
    Filed: June 5, 2023
    Date of Patent: August 20, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok Gyu Ban, Kyung Man Kim, Sang Jae Yeo
  • Patent number: 12067936
    Abstract: Provided are a pixel circuit and a pixel control method capable of quickly controlling pixels with a simpler configuration of a combination of a photosensor and a pixel circuit. The pixel circuit includes: a switching transistor for switching a data signal to be applied to a data line; a driving transistor for supplying a drive current to an organic light emitting diode (OLED) according to a charge voltage corresponding to the data signal; a compensation transistor for compensating for a threshold voltage of the driving transistor; and a photosensor having a terminal to which a bias voltage is applied, wherein the switching transistor is a dual gate transistor having a first gate connected to another terminal of the photosensor, and a second gate connected to a gate of the compensation transistor.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: August 20, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Kenichi Takatori
  • Patent number: 12019351
    Abstract: A display panel includes: a first base substrate and a second base substrate which are opposite to each other, and a plurality of lens imaging modules. The first base substrate includes a plurality of pixel units arranged in an array. The plurality of lens imaging modules are located between the first base substrate and the second base substrate, and an orthogonal projection of the lens imaging module on the first base substrate is located between two adjacent pixel units. Therefore, the lens imaging modules are disposed inside the display panel without affecting display of the display panel, such that a screen-to-body ratio can be significantly increased, which is advantageous for achieving borderless full-screen display.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: June 25, 2024
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shumeng Sun, Minghui Zhang, Inho Park
  • Patent number: 12008975
    Abstract: A display device that achieves both high-accuracy sensing by a touch sensor unit and smooth input using the touch sensor unit is provided. The display device includes a display unit and the touch sensor unit. The touch sensor unit performs touch sensing operation at a different timing from display image rewriting by the display unit, whereby the high-accuracy sensing can be achieved. The display unit has a function of rewriting a display image only in a region that needs to be rewritten. In the case where the entire display region is not necessarily rewritten, the time for the sensing operation by the touch sensor unit can be lengthened, whereby the smooth input can be achieved.
    Type: Grant
    Filed: May 2, 2023
    Date of Patent: June 11, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Susumu Kawashima, Kouhei Toyotaka, Kei Takahashi
  • Patent number: 11997897
    Abstract: A display substrate includes a display region and a peripheral region on a periphery of the display region. At least multiple sub-pixels are arranged in the display region. At least one sub-pixel includes a pixel driving circuit arranged on an underlay substrate and a light emitting element connected with the pixel driving circuit. The pixel driving circuit is connected with a first initial signal line. The first initial signal line is arranged to provide a first initial voltage to the light emitting element under the control of the pixel driving circuit. A first power line and a signal connection line are arranged in the peripheral region. The first initial signal line is connected with the first power line through the signal connection line in the peripheral region.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: May 28, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Lili Du, Benlian Wang, Yue Long, Weiyun Huang, Binyan Wang
  • Patent number: 11995544
    Abstract: According to an embodiment of the disclosure, an aperture ratio measurement device includes an actual aperture ratio measurement unit which image some mother substrates selected from a plurality of mother substrates and calculate an aperture ratio actual measurement value of a pixel for the imaged some mother substrates, an estimation aperture ratio measurement unit which learn sensing data for each of the plurality of mother substrates and calculate an aperture ratio prediction value of a pixel for all or a group of the plurality of mother substrates, and an addition unit which calculate a final aperture ratio prediction value based on the aperture ratio actual measurement value and the aperture ratio prediction value.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: May 28, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyong Tae Park, Dong Hoon Jeong
  • Patent number: 11984064
    Abstract: A display apparatus having a wide range of threshold voltage compensation function is provided. In the display apparatus, a p-channel transistor is used as a driving transistor of the light-emitting device. Discharging is performed through a source-drain path while constant voltage is supplied to a gate so that Vth is extracted between the gate and the source. In addition, when a drain potential is set to the sum of forward voltage and a cathode potential of the light-emitting device or a potential sufficiently lower than the sum, it is possible to continue the discharging even when Vth is positive voltage. That is, compensation can be performed even in the case where Vth variation occurs from positive voltage to negative voltage.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: May 14, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Susumu Kawashima, Koji Kusunoki, Kazunori Watanabe, Satoshi Yoshimoto
  • Patent number: 11985861
    Abstract: The disclosure provides a display panel and a display device. The display panel includes: a base substrate, a transistor array layer, a pixel defining layer, touch electrodes. The area of opening region of first color sub-pixel is smaller than that of opening region of third color sub-pixel, the area of opening region of second color sub-pixel is smaller than that of opening region of third color sub-pixel. An orthogonal projection of second capacitor in first color sub-pixel and an orthogonal projection of touch electrodes have a first auxiliary overlap area, an orthogonal projection of second capacitor in second color sub-pixel and orthogonal projection of the touch electrodes have a second auxiliary overlap area, an orthogonal projection of second capacitor in third color sub-pixel and orthogonal projection of touch electrodes have a third auxiliary overlap area. The first and/or second auxiliary overlap area is larger than the third auxiliary overlap area.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: May 14, 2024
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jianbo Xian, Chen Xu, Pan Li, Yong Qiao, Xinyin Wu
  • Patent number: 11972729
    Abstract: Provided are a display panel and a display device. The pixel display panel includes a pixel driver circuit and the pixel driver circuit includes: a drive module, a first initialization module, a storage module, a threshold compensation module, a data write module and a light-emitting module. At least one of a transistor of the drive module, a transistor of the first initialization module and a transistor of the threshold compensation module adopts a first double-gate structure, the transistor adopting the first double-gate structure includes a control terminal and a first bottom gate electrode, and the first bottom gate electrode is configured to access to a first modulation voltage.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: April 30, 2024
    Assignee: Xiamen Tianma Display Technology Co., Ltd.
    Inventor: Jianlong Wu
  • Patent number: 11963391
    Abstract: Disclosed is an organic light emitting diode display device. The disclosed organic light emitting diode display device includes an overcoat layer disposed on a substrate that is divided into an emissive area and a non-emissive area, and has multiple micro lenses in the emissive area and at least one depression in the non-emissive area. The organic light emitting diode display device further includes: a first electrode disposed on the overcoat layer, wherein the first electrode is disposed in the entire emissive area and in a part of the non-emissive area; a bank pattern disposed in the non-emissive area so as to be superposed on the depression; an organic light emitting layer disposed on the substrate; and a second electrode disposed on the organic light emitting layer. Accordingly, the organic light emitting diode display device may prevent light leakage.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: April 16, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Jintae Kim, Sookang Kim, Soyoung Jo, Wonhoe Koo, Jihyang Jang, Hyunsoo Lim, Mingeun Choi
  • Patent number: 11957029
    Abstract: An OLED display panel comprises an array substrate and metal wiring layers, wherein one part of metal lines is arranged in a direction perpendicular to a first dam, and the other part of the metal lines forms acute angles with the first dam. A plurality of first grooves are defined in a fan-out area and arranged along the metal lines, and a plurality of second grooves are defined in the array substrate corresponding to a part of an area and arranged in the direction perpendicular to the first dam.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: April 9, 2024
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Jun Cao
  • Patent number: 11925075
    Abstract: A display apparatus includes: a thin-film transistor including a source electrode, a drain electrode, and a gate electrode; a data line in a layer different from the source electrode, the drain electrode, and the gate electrode, wherein the data line is configured to transmit a data signal; and a shield layer between the data line and a component of the thin-film transistor.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: March 5, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yangwan Kim, Wonkyu Kwak, Jaedu Noh, Jaeyong Lee
  • Patent number: 11922884
    Abstract: A display device includes: a first pixel including a first organic light emitting diode; an initialization voltage generator for generating a first initialization voltage to be supplied to an anode of the first organic light emitting diode; and a timing controller including a first lookup table in which a plurality of first initialization voltage values corresponding to a plurality of maximum luminances are recorded, the timing controller being configured to determine a value of the first initialization voltage, based on reception information on a target maximum luminance and the first lookup table.
    Type: Grant
    Filed: February 17, 2023
    Date of Patent: March 5, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Hyun Ka, Seung Ji Cha, Mi Hae Kim, Ki Myeong Eom
  • Patent number: 11910651
    Abstract: A disclosed light emitting display apparatus includes a substrate; a pixel driving layer on the substrate and including a driving transistor; a cover layer covering the pixel driving layer; a plurality of light emitting elements, including a first light emitting element and a second light emitting element each having a first electrode on the cover layer and being adjacent to each other; a bank disposed on the cover layer and between the first electrode of the first light emitting element and the first electrode of the second light emitting element; and a capacitor overlapping with the bank. The capacitor may include a first metal layer connected with a first terminal of the driving transistor via the first electrode of one of the first and second light emitting elements, and a second metal layer connected with a gate of the driving transistor.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: February 20, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sejong Seong, Seungkyeom Kim
  • Patent number: 11910672
    Abstract: A substrate includes a display area and a non-display area with touch electrodes disposed in the display area, touch lines disposed in the non-display area and connected to the touch electrodes, a first power supply line disposed in the non-display area and having a first power supply voltage applied thereto, and a second power supply line disposed in the non-display area and having a second power supply voltage applied thereto, the second power supply voltage being higher than the first power supply voltage. Any one of the touch lines overlaps at least one of the first power supply line and the second power supply line. The first power supply line overlaps the second power supply line.
    Type: Grant
    Filed: January 3, 2022
    Date of Patent: February 20, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki Ho Bang, Eun Hye Kim, Eun Ae Jung, Won Suk Choi
  • Patent number: 11860019
    Abstract: A field device with display means for the visual representation of states determined by the field device, wherein at least two display means are provided, which are each configured in a ring-shaped or ring-segment-shaped manner, as well as a method for the visual representation of states determined by a field device.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: January 2, 2024
    Assignee: VEGA GRIESHABER KG
    Inventors: Clemens Hengstler, Matthias Schmidt, Florian Krämer, Patrick Heizmann, Stefan Allgaier
  • Patent number: 11856830
    Abstract: The present disclosure relates to a display device and a method of manufacturing the same, the display device including: a substrate including a pixel area and a non-pixel area adjacent to the pixel area; a power line formed on the substrate; at least one insulation layer covering the power line; a connection electrode formed on the at least one insulation layer, and connected to the power line through a contact hole; an overcoat layer placed above the connection electrode in the pixel area; and a first electrode placed above the overcoat layer, wherein the connection electrode has at least an area formed in the non-pixel area, and the first electrode extends to the non-pixel area and is connected to the connection electrode.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: December 26, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jungeun Lee, Chulho Kim, Namkook Kim, Sungwoo Choi, Hwankeon Lee, Youngkyun Moon, Jihun Lee
  • Patent number: 11837190
    Abstract: A display apparatus is provided. The display apparatus includes: a liquid crystal panel; a source driver configured to output a grayscale voltage to the liquid crystal panel; a power supply configured to provide a voltage to the source driver; and a controller configured to control the power supply and the source driver to change a maximum voltage provided to the source driver and a grayscale voltage based on conversion of a screen mode, and to set a predetermined grayscale region and an over driving region within an entire grayscale region.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: December 5, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jinoh Kim
  • Patent number: 11809029
    Abstract: An electromagnetic wave emitting structure is provided in this disclosure. The electromagnetic wave emitting structure includes a substrate and a plurality of electromagnetic wave emitting units. The substrate has a first flat part and a foldable part connected with the first flat part. The plurality of electromagnetic wave emitting units are disposed on the substrate. Two adjacent ones of the plurality of electromagnetic wave emitting units on the first flat part have a first pitch in a first direction parallel to a surface of the first flat part, and another two adjacent ones of the plurality of electromagnetic wave emitting units on the foldable part have a second pitch in a second direction parallel to a surface of the foldable part. The second pitch is different from the first pitch.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: November 7, 2023
    Assignee: InnoLux Corporation
    Inventors: Yu-Chih Tseng, Yu-Chia Huang, Chu-Hong Lai
  • Patent number: 11790862
    Abstract: A display apparatus includes a display panel having a plurality of pixels, a gate driver configured to provide a gate signal to the display panel, a data driver configured to provide a data signal to the display panel, and a driving controller configured to control the gate driver and the data driver and to receive input image data to generate output image data corresponding to the data signal. The driving controller is configured to determine a scale factor based on a total load value of previous input image data and to compare the current input image data with the previous input image data to determine whether to apply the scale factor to the current input image data.
    Type: Grant
    Filed: January 3, 2022
    Date of Patent: October 17, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jang-Mi Lee, Kihyun Pyun, Hyoseok Yun
  • Patent number: 11783779
    Abstract: A pixel circuit includes: a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node; a light emitting element including an anode electrode connected to the third node, and a cathode electrode connected to a power line; a first switch element to supply a data voltage of pixel data to the second node; a second switch element to supply an initialization voltage to the second node; a third switch element to supply a reference voltage to the third node; a fourth switch element configured to connect the third node to a power line to reset a voltage of the anode electrode of the light emitting element to the pixel reference voltage; and a capacitor between the second and third node.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: October 10, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Yong Won Lee, Ki Young Kwon, Seo Jun Yeom
  • Patent number: 11770893
    Abstract: A display device includes: a display panel including a bending area; and a first passivation film and a second passivation film disposed on a first surface of the display panel to be spaced apart from each other. The second passivation film includes a first flat portion and a first stepped portion overlapping the bending area, and a thickness of the first stepped portion is less than a thickness of the first flat portion.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: September 26, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Min Song, Ki Nyeng Kang, Seon Beom Ji, Tae Hoon Yang
  • Patent number: 11765953
    Abstract: A display apparatus includes a first transistor including a first semiconductor layer and a first electrode that at least partially overlaps the first semiconductor layer. A first capacitor includes the first electrode and a second electrode that at least partially overlaps the first electrode. A second capacitor includes the second electrode and a third electrode that at least partially overlaps the second electrode. A first data line is configured to transfer a data voltage therethrough. First and second scan lines are configured to transfer first and second scan signals therethrough, respectively. A second transistor connects the first data line to the second electrode in response to the first scan signal. A third transistor connects the first electrode to a drain of the first transistor in response to the second scan signal.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: September 19, 2023
    Assignee: SAMSUNG DISPLAYCO., LTD.
    Inventors: Seokhyun Lim, Joohee Jeon, Sunmi Kang, Juhoon Kang, Hyungkeun Park, Donghwan Shim, Miyeon Cho, Gunhee Kim, Sunyoung Jung
  • Patent number: 11765941
    Abstract: A display device includes: a display including a plurality of light-emitting devices; a first bank provided outside the display; a second bank provided outside the first bank; and a plurality of peripheral lines formed below, and intersecting with, the first bank and the second bank, wherein each of the peripheral lines includes a plurality of bends provided between the first bank and the second bank in plan view.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: September 19, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hisao Ochi, Tohru Senoo, Jumpei Takahashi, Tohru Sonoda, Takashi Ochi, Takeshi Hirase
  • Patent number: 11715438
    Abstract: A display device that achieves both high-accuracy sensing by a touch sensor unit and smooth input using the touch sensor unit is provided. The display device includes a display unit and the touch sensor unit. The touch sensor unit performs touch sensing operation at a different timing from display image rewriting by the display unit, whereby the high-accuracy sensing can be achieved. The display unit has a function of rewriting a display image only in a region that needs to be rewritten. In the case where the entire display region is not necessarily rewritten, the time for the sensing operation by the touch sensor unit can be lengthened, whereby the smooth input can be achieved.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: August 1, 2023
    Inventors: Susumu Kawashima, Kouhei Toyotaka, Kei Takahashi
  • Patent number: 11699391
    Abstract: A semiconductor device includes first to tenth transistors and first to fourth capacitors. Gates of the first and the fourth transistors are electrically connected to each other. First terminals of the first, second, fifth, and eighth transistors are electrically connected to a first terminal of the fourth capacitor. A second terminal of the fifth transistor is electrically connected to a gate of the sixth transistor and a first terminal of the second capacitor. A second terminal of the eighth transistor is electrically connected to a gate of the ninth transistor and a first terminal of the third capacitor. Gates of the second, seventh, and tenth transistors are electrically connected to first terminals of the third and fourth transistors and a first terminal of the first capacitor. First terminals of the sixth and seventh transistors are electrically connected to a second terminal of the second capacitor.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: July 11, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hajime Kimura, Takayuki Ikeda
  • Patent number: 11688343
    Abstract: In a pixel driving circuit, a compensation sub-circuit is respectively coupled to a first control terminal, a control terminal and a second terminal of the driving sub-circuit; a first terminal of the first coupling sub-circuit is coupled to the control terminal of the driving sub-circuit; a first terminal of the second coupling sub-circuit is coupled to a second terminal of the first coupling sub-circuit; a first reset sub-circuit is respectively coupled to a second control terminal, the control terminal of the driving sub-circuit and an initialization signal output terminal; a second reset sub-circuit is respectively coupled to a third control terminal, a second terminal of the first coupling sub-circuit and the first level signal output terminal; a first light emitting control sub-circuit is respectively coupled to a light emitting control terminal, a second terminal of the second coupling sub-circuit and a reference signal output terminal.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: June 27, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Can Zheng, Jianchao Zhu, Lujiang Huangfu, Libin Liu, Shiming Shi
  • Patent number: 11676555
    Abstract: A display device that achieves both high-accuracy sensing by a touch sensor unit and smooth input using the touch sensor unit is provided. The display device includes a display unit and the touch sensor unit. The touch sensor unit performs touch sensing operation at a different timing from display image rewriting by the display unit, whereby the high-accuracy sensing can be achieved. The display unit has a function of rewriting a display image only in a region that needs to be rewritten. In the case where the entire display region is not necessarily rewritten, the time for the sensing operation by the touch sensor unit can be lengthened, whereby the smooth input can be achieved.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: June 13, 2023
    Inventors: Susumu Kawashima, Kouhei Toyotaka, Kei Takahashi
  • Patent number: 11657742
    Abstract: Embodiments disclosed herein provide systems and methods for testing and repairing various aspects of an electronic display. The electronic display includes a reference array and an active array. The electronic display also includes test circuitry used to test individual or any combination of pixels of the electronic display. Switches may be disposed between the pixels and the test circuitry to be to repair the various components of the electronic display.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: May 23, 2023
    Assignee: Apple Inc.
    Inventors: Hasan Akyol, Chung-Lun Edwin Hsu, Baris Cagdaser, John T. Wetherell, Xuebei Yang, Ali Tabatabaei, Patrick Bryce Bennett, Yingkan Lin, Chun-Ming Tang, Xiaofeng Wang, Hopil Bae
  • Patent number: 11640787
    Abstract: The present disclosure relates to an array substrate and a display panel and a display device thereof. The array substrate comprises: a substrate; a pixel array disposed on the substrate, comprising a plurality of sub-pixels arranged in a plurality of rows and a plurality of columns; a plurality of pairs of scan signal lines, extending in a row direction and being spaced apart from each other in a column direction; and a reset voltage source signal line and a data signal line, extending in the column direction.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: May 2, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shuang Zhao, Chenyu Chen, Wenbo Chen, Hongting Lu, Yanping Ren, Jing Yang
  • Patent number: 11620922
    Abstract: In a cross section of a bending section of a frame region, a first opening opening upward is formed in at least one layer of inorganic film included in a TFT layer. A first organic film is provided to plug the first opening. A frame wiring line is provided on the first organic film. A second organic film is provided to cover the frame wiring line. A second opening opening upward is formed in the first organic film on an inner side with respect to the first opening.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: April 4, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shinji Ichikawa, Tohru Okabe, Shinsuke Saida, Ryosuke Gunji, Hiroki Taniyama, Yoshihiro Nakada, Hiroharu Jinmura, Akira Inoue
  • Patent number: 11616106
    Abstract: A display device is provided that includes a substrate, a first conductive layer disposed on the substrate, a first insulating layer disposed on the first conductive layer, a second insulating layer disposed on the first insulating layer, the second insulating layer including a contact hole exposing the first conductive layer, a second conductive layer disposed on the first insulating layer and electrically connected to the first conductive layer through the contact hole, a second insulating layer disposed on the first insulating layer, a first electrode disposed on the second insulating layer and the second conductive layer, the first electrode being electrically connected to the second conductive layer, a light emitting layer disposed on the first electrode, and a second electrode disposed on the light emitting layer.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: March 28, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Kim, Seung Hwan Cho, Ju Chan Park
  • Patent number: 11616213
    Abstract: Provided are a display panel and a display device. The display panel includes a substrate, light-emitting units, a first organic layer, and light extraction structures located between the light-emitting units and the first organic layer. The first light extraction layer has a first central axis and is symmetrical about the first central axis, the second light extraction layer has a second central axis and is symmetrical about the second central axis, and the first central axis and the second central axis are perpendicular to the substrate. A surface of the second light extraction layer connecting the first light extraction layer is a first surface, a surface of the second light extraction layer facing away from the first light extraction layer is a second surface, and at least one of the first surface and the second surface comprises straight lines in a cross-section perpendicular to the substrate.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: March 28, 2023
    Assignee: SeeYA Optronics Co., Ltd.
    Inventors: Wanwan Xia, Liyuan Luo, Dong Qian
  • Patent number: 11600689
    Abstract: A display substrate, a display panel and a display device. A pixel circuit includes a power supply wire providing a power supply voltage to the display pixel; a drive circuit in the non-display region includes a drive signal wire providing a drive signal to the pixel circuit; the power supply wire includes a narrow wire portion overlapping with the drive signal wire and a wide wire portion; a wire width of the narrow wire portion is less than that of the wide wire portion; the display substrate has a first side for display and a second side opposite to the first side, includes a bending region at an edge of the base substrate; the power supply wire and the drive signal wire extend from the first side to the bending region, crossing the bending region to extend to the second side; the narrow wire portion is on the second side.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: March 7, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Meng Zhang, Linhong Han, Zhenhua Zhang, Tingliang Liu, Yongjie Song, Huijuan Yang, Xiaofeng Jiang, Yi Qu
  • Patent number: 11581378
    Abstract: A display apparatus includes first and second subpixel electrodes on a planarization layer including first and second via holes. The first subpixel includes a first pixel definition layer including a first opening exposing a portion of a first pixel electrode corresponding to a first emission portion. The first pixel electrode is connected to a first pixel circuit through the first via hole. The second subpixel includes a second pixel definition layer including a second opening exposing a portion of a second pixel electrode corresponding to a second emission portion. The second pixel electrode is connected to a second pixel circuit through the second via hole. A second distance defined as a shortest distance from an inner surface of the second opening to the second via hole is greater than a first distance defined as a shortest distance from an inner surface of the first opening to the first via hole.
    Type: Grant
    Filed: June 21, 2020
    Date of Patent: February 14, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyeonbum Lee, Jinwhan Jung
  • Patent number: 11574596
    Abstract: A display device includes gate lines and pixels connected to the gate lines. The display device includes stages which provide gate signals to the gate lines, and first and second gate power lines which transfer a first voltage to the stages. A first stage among the stages includes a first node controller and a first output unit. The first node controller is connected to the second gate power line, and controls a voltage of a first control node. The first output unit is connected to the first gate power line, and outputs a first voltage of the first gate power line as a gate signal in response to a voltage of the first control node.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: February 7, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Hai Jung In
  • Patent number: 11538399
    Abstract: A display panel, a driving method, and a display device are provided. The display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a data-writing module, a driving module, a compensation module, and a first light-emission controller. The driving module is configured to provide driving current for the light-emitting element. The driving module includes a driving transistor, and the driving transistor is an NMOS transistor. The data-writing module is connected between a data-signal input terminal and a first terminal of the driving transistor for selectively providing a data signal for the driving module. The compensation module is configured to compensate a threshold voltage of the driving transistor. The first light-emission controller is connected between a first power signal terminal and a second terminal of the driving transistor for selectively providing a first power signal to the driving module.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: December 27, 2022
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Jieliang Li, Jiaxian Liu
  • Patent number: 11532267
    Abstract: A pixel driving circuit includes a light-emitting control sub-circuit and a plurality of display control sub-circuits. The light-emitting control sub-circuit is connected to a light-emitting control signal terminal, a power supply signal terminal and a light-emitting control node, and is configured to transmit a power supply signal from the power supply signal terminal to the light-emitting control node in response to a light-emitting control signal received from the light-emitting control signal terminal. Each display control sub-circuit is connected to the light-emitting control node, a scan signal terminal, a data signal terminal, and a light-emitting element. Each display control sub-circuit is configured to, in response to a scan signal received from the scan signal terminal, output a driving signal according to the power supply signal and a data signal from the data signal terminal, so as to drive the light-emitting element to emit light.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: December 20, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Zheng Liu
  • Patent number: 11527200
    Abstract: A pixel circuit of a display device Includes: an electro-optical element; a drive transistor; a write control transistor; a threshold compensation transistor; two light emission control transistors; a first initialization transistor having a first conduction terminal connected to a gate terminal of the drive transistor, a second conduction terminal to which an initialization voltage is applied, and a gate terminal connected to a first initialization control line; and a capacitor provided between a first conductive member and the gate terminal of the drive transistor. In a non-light emission period, time during which a voltage of the first initialization control line is at an on-level is longer than a period during which a voltage of a scanning line is at the on-level. As a result, a display device capable of sufficiently initializing the gate terminal of the drive transistor is provided.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: December 13, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Fumiyuki Kobayashi
  • Patent number: 11521549
    Abstract: A pixel driving circuit, a method for driving the same, and a display panel are provided. An operating sequence of the pixel driving circuit includes a first light-emitting stage and a second light-emitting stage after the first light-emitting stage. The first light-emitting stage includes a data writing stage and a light-emitting stage after the data writing stage. The second light-emitting stage includes a correcting stage and a light-emitting stage after the correcting stage. The pixel driving circuit includes a driving module, a threshold voltage capturing module configured to be turned on during the data writing stage and to write a data voltage to a control terminal of the driving module, and a coupling module configured to adjust a coupling voltage of the control terminal of the driving module during the correcting stage and the light-emitting stage of the second light-emitting stage.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: December 6, 2022
    Assignees: WUHAN TIANMA MICROELECTRONICS CO., LTD
    Inventors: Jian Kuang, Mengmeng Zhang, Xingyao Zhou, Lilian Kuang