Patents Assigned to Display Technologies
  • Patent number: 11971627
    Abstract: Provided are a display panel and a method for preparing same, and a display apparatus. The display panel includes an array substrate and an opposite substrate, which are oppositely arranged, and a liquid crystal layer, which is arranged between the array substrate and the opposite substrate, wherein a compensation layer is arranged on the array substrate or the opposite substrate, and an included angle between an optical axis direction of the compensation layer and an initial optical axis direction of liquid crystal molecules in the liquid crystal layer is less than or equal to 10 degrees; dispersion characteristics of the liquid crystal layer and the compensation layer are the opposite of each other.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: April 30, 2024
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Feifei Wang, Hongming Zhan, Xibin Shao, Lintao Ji
  • Patent number: 11971641
    Abstract: An active matrix substrate includes a first TFT disposed in each of pixel regions, a first flattened layer covering the first TFT, and a pixel electrode provided on the first flattened layer. The first TFT includes a lower gate electrode, a lower gate insulating layer, an oxide semiconductor layer, an upper gate insulating layer, and an upper gate electrode. The active matrix substrate further includes a first connection electrode for electrically connecting a drain contact region of the oxide semiconductor layer and the pixel electrode. The first flattened layer includes a pixel contact hole formed so as to expose a part of the first connection electrode. The bottom face of the pixel contact hole at least partially overlaps, of a lower gate metal layer including a lower gate electrode and an upper gate metal layer including an upper gate electrode, at least the lower gate metal layer when viewed from the normal direction of the substrate.
    Type: Grant
    Filed: November 1, 2022
    Date of Patent: April 30, 2024
    Assignee: Sharp Display Technology Corporation
    Inventors: Atsushi Hachiya, Hiroaki Furukawa, Yuhichi Saitoh, Kuniaki Okada
  • Patent number: 11972084
    Abstract: A touch panel system includes a touch panel, a cover member overlapping the touch panel, and a controller. The controller includes a position detection unit configured to detect a position of a pointer, based on a signal value obtained from a position detection electrode, an amplification processing unit configured to perform amplification processing on at least one signal value in a pressing force detection range corresponding to the position of the pointer detected by the position detection unit among signal values obtained from a pressing force detection electrode, and a pressing force detection unit configured to calculate magnitude of a pressing force generated by the pointer, based on a signal value after the amplification processing being a signal value in the pressing force detection range including a signal value obtained by amplification by the amplification processing unit.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: April 30, 2024
    Assignee: Sharp Display Technology Corporation
    Inventors: Shinji Yamagishi, Takenori Maruyama, Kazutoshi Kida, Takuma Yamamoto, Yasuhiro Sugita, Hiroshi Fukushima
  • Patent number: 11974032
    Abstract: A display screen and a display device are disclosed. The display screen includes: a first camera area including a first pixel unit and a first light-transmitting area; a second camera area including a second pixel unit and a second light-transmitting area; and a display area surrounding the first camera area and the second camera area, wherein a position of the first pixel unit in the first camera area corresponds to a position of the second light-transmitting area in the second camera area, and a position of the second pixel unit in the second camera area corresponds to a position of the first light-transmitting area in the first camera area.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: April 30, 2024
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Weixin Ma
  • Patent number: 11973084
    Abstract: The present invention discloses an array substrate, a manufacturing method thereof, and a display device thereof. The array substrate includes a substrate; a plurality of first thin film transistors, the first thin film transistors including a first gate electrode layer and a second gate electrode layer; a plurality of second thin film transistors, the second thin film transistors including a third gate electrode layer; and a gate electrode insulation layer disposed between the first gate electrode layer and the second gate electrode layer, and the third gate electrode layer located near a surface of a side of the substrate. The gate electrode insulation layer is silicon nitride material.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: April 30, 2024
    Assignees: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Dan Bai
  • Patent number: 11972717
    Abstract: Embodiments of the present disclosure provide a method of driving display, and a display device. The method of driving display includes: scanning, progressively or rows by rows, a plurality of sub-pixels arranged in an N×M array, to turn on each row of sub-pixels scanned, so that a duration in which two adjacent rows of sub-pixels are simultaneously in an ON state is greater than or equal to two times a unit scanning time, wherein the unit scanning time is a time required for scanning a row of sub-pixels, N is an integer greater than 1, and M is an integer greater than 1; and applying data signals to at least two rows of sub-pixels simultaneously in the ON state, so that a duration of applying the data signals to each row of sub-pixels is greater than the unit scanning time.
    Type: Grant
    Filed: March 13, 2023
    Date of Patent: April 30, 2024
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhihua Sun, Yinlong Zhang, Qiujie Su, Feng Qu, Jing Liu, Yanping Liao, Xibin Shao
  • 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: 11971631
    Abstract: The present disclosure provides a liquid crystal display panel and a display device. The liquid crystal display panel includes an array substrate. A hollow structure is defined in a common electrode layer. The hollow structure includes a first hollow structure corresponding to a display area. An area of the first hollow structure progressively increases along a direction from an array routing area to the display area, so that an area of the common electrode layer corresponding to the display area progressively decreases along the direction from the array routing area to the display area, thereby making RC loadings uniform and keeping charging rates in various areas same.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: April 30, 2024
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Suping Xi
  • Publication number: 20240138193
    Abstract: An organic light emitting diode (OLED) display panel includes a substrate, a thin film transistor (TFT) layer, a planarization layer, and a pixel definition layer which are arranged in sequence. The planarization layer is provided with first via holes, and the pixel definition layer is provided with second via holes and a through hole. Each first via holes communicates with one of the second via holes. The OLED display panel further includes a light-emitting device layer. The light-emitting device layer includes an anode, a light-emitting layer, and a cathode sequentially arranged on one side of the planarization layer. The light-emitting layer is arranged in the through hole. The cathode covers the pixel definition layer, the first via hole, the second via hole, and the light-emitting layer.
    Type: Application
    Filed: April 14, 2022
    Publication date: April 25, 2024
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Shijian Qin, Xiaotong Chen
  • Publication number: 20240135883
    Abstract: A pixel driving circuit, a display panel and a driving method of the pixel driving circuit are provided by the present disclosure. The pixel driving circuit includes a driving transistor, a reset module, a writing module, a first control module, and a light emitting device. The pixel driving circuit with the 5T2C structure can compensate the threshold voltage drift of the driving transistor, improve the luminous uniformity of the light emitting device, and further improve the image quality.
    Type: Application
    Filed: December 28, 2022
    Publication date: April 25, 2024
    Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Yi WU, Shijian BAO
  • Publication number: 20240135877
    Abstract: Provided are a display panel, a driving method of a display panel, and a display device. The display panel includes a first display region and a second display region. A working process of the display panel includes a first mode. In the first mode, a data refresh rate of the first display region is F11, a data refresh rate of the second display region is F21, and F11?F21. In the first mode, a driving parameter of the first display region is different from a driving parameter of the second display region, the driving parameter of the first display region is used for controlling brightness of the first display region, and the driving parameter of the second display region is used for controlling brightness of the second display region.
    Type: Application
    Filed: December 29, 2023
    Publication date: April 25, 2024
    Applicant: Xiamen Tianma Display Technology Co., Ltd.
    Inventors: Weixing LIU, Ying SUN
  • Publication number: 20240135895
    Abstract: The disclosure relates to a method of driving a display and the display, wherein the driving method includes: determining a grayscale extreme value corresponding to a polarity of display data of a target frame image according to the polarity; adjusting a voltage value of a first power supply voltage of the display according to the grayscale extreme value to obtain a voltage value of a second power supply voltage; and driving the display for displaying according to the voltage value of the second power supply voltage and the display data of the target frame image.
    Type: Application
    Filed: January 20, 2022
    Publication date: April 25, 2024
    Applicants: Huizhou China Star Optoelectronics Display Co., Ltd., Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Xiaobing LU, Xiaolong CHEN
  • Publication number: 20240135878
    Abstract: Provided are a pixel circuit, a driver circuit, a display panel, and a display apparatus. The pixel circuit includes a first-type switch transistor and a second-type switch transistor. A gate of the first-type switch transistor receives a first-type control signal. The first-type control signal includes a first high level and a first low level. A gate of the second-type switch transistor receives a second-type control signal. The second-type control signal includes a second high level and a second low level. The first high level is not equal to the second high level, and/or the first low level is not equal to the second low level, thereby implementing the accurate control of transistors and improving circuit stability.
    Type: Application
    Filed: December 29, 2023
    Publication date: April 25, 2024
    Applicant: Tianma Advanced Display Technology Institute (Xiamen) Co., Ltd.
    Inventor: Yingteng ZHAI
  • Publication number: 20240136360
    Abstract: An array substrate, a manufacturing method of the array substrate, and a display panel are provided. The array substrate includes a metal light-shielding layer, a buffer layer an active layer, an interlayer insulating layer, and a source-drain electrode layer, a plurality of first via holes are disposed in the interlayer insulating layer, the active layer includes a metal oxide body layer and an etching barrier layer disposed on a surface of the metal oxide body layer, the etching barrier layer includes a plurality of first etching barrier sections corresponding to the first via holes, and the source-drain electrode layer is electrically connected to the metal oxide body layer through the first etching barrier sections.
    Type: Application
    Filed: December 27, 2022
    Publication date: April 25, 2024
    Applicant: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Mingjiue YU, Zhixiong JIANG, Lanlan LI
  • Publication number: 20240138209
    Abstract: The present application discloses an OLED display panel and a manufacturing method thereof. The OLED display panel includes: a base layer, an active layer, a gate insulating layer, a first metal layer, and a second metal layer, wherein the active layer includes a channel portion, a source contact portion, a first electrode, and an anode; the second metal layer is arranged above the first metal layer and connected to the source contact portion; the insulating layer, the first metal layer, and the second metal layer are stacked, and an opening is defined in the insulating layer at the position corresponding to the anode.
    Type: Application
    Filed: April 14, 2022
    Publication date: April 25, 2024
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Shuai Zheng, Zhaosong Liu
  • Publication number: 20240135874
    Abstract: The present application discloses a display panel and a display device. The display panel comprises pixel circuits, collecting modules and feedback modules, and the pixel circuit comprises a driving module, a data writing module and a light-emitting module; wherein the data writing module is configured to transmit a voltage output by a data signal terminal to the driving module; the driving module and the light-emitting module are electrically connected between a first power supply terminal and a second power supply terminal, and the driving module is configured to generate a driving current according to the voltage from the data signal terminal and a voltage from the first power supply terminal to drive the light-emitting module to emit light; the collecting module is configured to collect at least one of a voltage actually received by the driving module and a voltage actually received by the driving module.
    Type: Application
    Filed: January 12, 2023
    Publication date: April 25, 2024
    Applicant: Xiamen Tianma Display Technology Co., Ltd.
    Inventors: Qingyue ZHANG, Xiaoyong LIU, Zhida ZHU, Jingxiong ZHOU, Zhiqiang XIA
  • Publication number: 20240135849
    Abstract: The present application provides a gate driving circuit, a driving method, and a display panel. The gate driving circuit includes a pull-up control module, a pull-up module, a pull-down control module, a pull-down module, and a voltage stabilizing module. The pull-down node and the pull-up control module are connected to the voltage stabilizing module, which is not only reduce a leakage current of the pull-down node in the high potential state to stabilize the high potential of the pull-down node, but also maintain the level of the pull-down node in the low potential state to stabilize the low potential of the pull-down node.
    Type: Application
    Filed: December 30, 2022
    Publication date: April 25, 2024
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Zhenyang Qiao, Liuqi Zhang, Baixiang Han
  • Patent number: 11966125
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. Each pixel includes a reflection region and a transmission region. The first substrate includes a reflecting layer, a first insulating layer, and a pixel electrode. The thickness of the liquid crystal layer in the transmission region is greater than the thickness of the liquid crystal layer in the reflection region, and the liquid crystal layer has a twist angle of substantially 0 degree. A surface of the first substrate that faces the liquid crystal layer includes an upper step portion, a lower step portion, and an inclined portion. The length L1 of a portion of the inclined portion included in the reflection region and the length L2 of a portion of the lower step portion included in the reflection region satisfy the relationship L1+L2?1.81·L1.
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: April 23, 2024
    Assignee: Sharp Display Technology Corporation
    Inventors: Hiroyuki Hakoi, Takashi Satoh
  • Patent number: 11966135
    Abstract: A display panel, including a pixel array; multiple rows of gate lines; and multiple columns of data lines; the gate lines and the data lines are perpendicular to each other, respectively, and every two gate lines are correspondingly connected to a row of sub-pixels, and each data line is correspondingly connected to two columns of sub-pixels; each row of pixels is correspondingly connected to two gate lines, and any two gate lines are parallel to each other; and there is a preset length difference between two adjacent rows of gate lines. The wiring of the display panel is convenient to be array detected, and improving the production yield of the display panel.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: April 23, 2024
    Assignees: Chongqing Advance Display Technology Research, Chongqing HKC Optoelectronics Technology Co., Ltd.
    Inventor: Chuan Wu
  • Patent number: 11968791
    Abstract: A sliding display device includes a housing assembly and a flexible display screen. The housing assembly includes a bottom case, a first support body, a second support body, and a linkage mechanism. The linkage mechanism is configured to drive the second support body to slide out of the bottom case into an expanded state or slide into the bottom case into an unexpanded state. Part of the flexible display screen is hidden between the bottom case and the first supporting body in the unexpanded state. The flexible display screen includes a flexible display panel, a backplate, an adhesive layer, and at least a third support body. The third support body and the second support body collectively form a network structure.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: April 23, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Zhuo Zhang, Wen Han