Patents Assigned to Display Technologies
  • Patent number: 12367840
    Abstract: A display apparatus includes a display panel that includes a liquid-crystal panel and a backlight arranged behind the liquid-crystal panel, and a controller that controls a luminance of the backlight and a transmittance ratio of the liquid-crystal panel. The controller is configured to: when a refresh rate at which an image is displayed on the display panel is switched, vary the luminance of the backlight such that a variation of a luminance of the display panel between before and after switching of the refresh rate falls within a predetermined range; vary the transmittance ratio of the liquid-crystal panel such that the variation of the luminance of the display panel falls within the predetermined range within a time duration that lasts until the luminance of the backlight reaches a target value; and restore the original transmittance ratio of the liquid-crystal panel after elapse of the time duration.
    Type: Grant
    Filed: September 20, 2024
    Date of Patent: July 22, 2025
    Assignee: Sharp Display Technology Corporation
    Inventors: Atsunori Nagato, Takashi Sasaki
  • Patent number: 12366774
    Abstract: A backlight module, and a display device and a driving method thereof, which relate to the technical field of displaying. The backlight module includes a substrate, and a plurality of light sources and a plurality of reflector cups arranged at one side of the substrate; each reflector cup includes a lower port, an upper port, a cup body connected between the lower port and the upper port, and a plurality of micro structures arranged on an inner wall surface of the cup body; the plurality of light sources are separately located at the lower ports of the different reflector cups; and light-emitting surfaces of the light sources face the upper ports; the micro structures have a plurality of reflecting surfaces: the reflecting surfaces are configured for reflecting light emitted by the light sources.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: July 22, 2025
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Weining Chi, Rui Han, Daekeun Yoon, Qing Ma, Dong Cui, Zhipeng Zhang, Fengping Wang, Yue Zhai, Wenyang Li, Yongle Qi, Shouyang Leng, Biqi Li
  • Patent number: 12367818
    Abstract: A display panel includes a driver circuit including shift registers with N stages and being cascade with each other, where N?2, and each shift register includes a first control portion and a second control portion. The first control portion is configured to control a first output signal, where the first output signal of an i-th stage of shift register is an input signal of a j-th stage of shift register, and 1?i?N, 1?j?N. The second control portion is configured to receive at least the first output signal and a frequency control signal and control a second output signal. In a case where the first output signal is an effective pulse and a time period of the effective pulse is within a time period of an effective pulse of the frequency control signal, the second output signal is the effective pulse.
    Type: Grant
    Filed: July 26, 2024
    Date of Patent: July 22, 2025
    Assignee: Xiamen Tianma Display Technology Co., Ltd.
    Inventors: Qingjun Lai, Chengxu Li, Xiangyuan Li, Jinjin Yang, Yong Yuan
  • Patent number: 12367843
    Abstract: The present disclosure provides a standby control signal generation circuit, including: an amplification sub-circuit connected with an input terminal of the standby control signal generation circuit and configured to receive a video signal and amplify the video signal; an XOR sub-circuit connected with the amplification sub-circuit and configured to perform an XOR operation on the amplified video signal and a ground signal; and an adjustment sub-circuit connected with the XOR sub-circuit and configured to perform a proportional adjustment on an amplitude of an output signal of the XOR sub-circuit to generate a standby control signal. The present disclosure further provides a display driving device, a display driving method and a display apparatus.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: July 22, 2025
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jing Zhang, Jian Zhang, Yingbo Gao, Hongsheng Gu, Xiaoning Jiang, Wenyu Li, Xingliang Li, Liuyun Lv, Shuyan Ma, Yuanpei Zhao
  • Patent number: 12366778
    Abstract: A display module, a manufacturing method thereof, and an electronic terminal are provided. The display module includes a circuit board and a display panel electrically connected to each other. The display panel includes an array substrate and a color filter substrate disposed opposite to each other. The array substrate includes a first common electrode and a second common electrode, and the color filter substrate includes a third common electrode. A first gamma pin of a digital power management integrated chip disposed on the circuit board is electrically connected to the first common electrode, the second common electrode, or the third common electrode.
    Type: Grant
    Filed: April 15, 2022
    Date of Patent: July 22, 2025
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Guoqing Gao, Yunhai Bai, Xinying Luo, Jinao Chen
  • Patent number: 12366777
    Abstract: The present disclosure provides a liquid crystal grating and a driving method therefor, and a three-dimensional (3D) display device. The liquid crystal grating includes: a first substrate; a second substrate, where the second substrate and the first substrate are oppositely arranged; a liquid crystal layer, where the liquid crystal layer is located between the first substrate and the second substrate; and a first transparent grating electrode layer located at a side, facing the liquid crystal layer, of the first substrate; where the first transparent grating electrode layer includes a plurality of first strip-shaped electrodes extending in a first direction and arranged at intervals in a second direction, and each of at least part of the first strip-shaped electrodes is divided in the first direction into at least two first strip-shaped sub-electrodes arranged independently.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: July 22, 2025
    Assignees: Hefei BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yonggang Zhang, Wei Zhang, Chao Li, Xipeng Wang, Jilei Gao, Xin Zhou, Benzhi Xu, Qi Liu, Liangwei Zhang, Xing Zhang
  • Patent number: 12366775
    Abstract: Provided is a liquid crystal element sequentially including: a first substrate; a first weak anchoring horizontal alignment film; a liquid crystal layer containing dual-frequency liquid crystal molecules; a second weak anchoring horizontal alignment film; and a second substrate. At least one of the first substrate or the second substrate includes a comb-teeth electrode for electric field generation in the liquid crystal layer. The dual-frequency liquid crystal molecules are twist-aligned between the first and second substrate with voltage applied and with no voltage applied. A direction of twist of the dual-frequency liquid crystal molecules with voltage applied and that with no voltage applied are the same. An alignment direction of dual-frequency liquid crystal molecules in a center of the liquid crystal layer in a thickness direction is orthogonal or parallel to an extension direction of the comb-teeth electrode.
    Type: Grant
    Filed: August 15, 2024
    Date of Patent: July 22, 2025
    Assignee: Sharp Display Technology Corporation
    Inventors: Hiroaki Asagi, Kiyoshi Minoura, Daisuke Minami
  • Patent number: 12367807
    Abstract: Embodiments of the present disclosure provide a pixel circuit, a driving method therefor and a display apparatus. The pixel circuit includes: an input circuit, configured to input data signals loaded to a first data signal terminal into corresponding input nodes in response to signals loaded to 2N?1 first scanning signal terminals; a control circuit, configured to control signals of 2N control nodes respectively in response to signals of at least two input nodes in the 2N?1 input nodes; an output circuit, configured to provide a signal of an mth selection control signal terminal in 2N selection control signal terminals to an output node in response to a signal of an mth control node in the 2N control nodes; and a light-emitting drive circuit, configured to drive a to-be-driven device to work in response to a signal of the output node.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: July 22, 2025
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ning Cong, Minghua Xuan, Can Zhang, Can Wang, Jinfei Niu, Jingjing Zhang, SeungWoo Han
  • Patent number: 12366754
    Abstract: A display apparatus (500) for displaying a virtual image (VIMG1) comprises: an optical engine (ENG1) to form input light (IN1), which represents an input image (IMG0), an expander device (EPE1) to form light beams (B3P0,R,B3P1,R) of output light (OUT1) by expanding light beams (B0P0,R,B0P1,R) of the input light (IN1), the expander device (EPE1) comprising: a waveguide plate (SUB1), a diffractive in-coupling element (DOE1) to form first guided light (B1a) and second guided light (B1b) by coupling input light (IN1) into the waveguide plate (SUB1), wherein the display apparatus (500) comprises a base (BASE1) and an actuating mechanism (MOTOR1) to cause rotary motion of the expander device (500) with respect to the base (BASE1), wherein an angle (?1) between an optical axis (AX0) of the optical engine (ENG1) and the axis (AX1) of rotation of the expander device (500) is in the range of 10° to 45°.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: July 22, 2025
    Assignee: Shenzhen Optiave Display Technology Co., Ltd.
    Inventors: Yisheng Zhu, Houqiang Jiang, Tapani Kalervo Levola
  • Patent number: 12367844
    Abstract: Provides are a drive method of a display panel and a display apparatus. The drive method of the display panel includes: obtaining a current temperature of the display panel; obtaining a current overdrive lookup table corresponding to the current temperature according to the current temperature and initial overdrive lookup tables corresponding to prestored set temperatures, wherein the initial overdrive lookup tables include a plurality of different first gray-scale values, a plurality of different second gray-scale values and initial gray-scale values corresponding to any first gray-scale value and any second gray-scale value, and the current overdrive lookup table includes a plurality of different first gray-scale values, a plurality of different second gray-scale values and current gray-scale values corresponding to any first gray-scale value and any second gray-scale value; and driving sub-pixels in the display panel to charge corresponding data voltages according to the current overdrive lookup table.
    Type: Grant
    Filed: April 15, 2022
    Date of Patent: July 22, 2025
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Pengfei Hu, Jianhua Huang, Dongchuan Chen, Yingying Qu, Shulin Yao, Yue Yang, Wenpeng Ma, Zheng Zhang
  • Patent number: 12366943
    Abstract: A display substrate, a display panel and a display apparatus are provided. The display substrate comprises a base substrate, which includes a display area and a non-display area on one side of the display area; an encapsulation dam in the non-display area and arranged around the display area, where an organic insulating layer has a groove structure on the side of the packaging dam away from the display area; and a touch structure, which is located on the side of the organic insulating layer facing away from the base substrate, and which comprises a plurality of touch lines extending to the non-display area; an inorganic insulating layer has a hollow structure on the side of the packaging dam away from the display area, and the hollow structure covers the groove structure and does not overlap with the orthographic projection of the plurality of touch lines.
    Type: Grant
    Filed: November 26, 2020
    Date of Patent: July 22, 2025
    Assignees: Chongqing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Huina Qiao, Yunte Chen, Fan He, Jun Yan, Yingxi Cui, Xuepei Cheng, Lubiao Sun, Le Peng, Zhengde Liu, Xuelin Zou, Qiang Guo
  • Publication number: 20250234724
    Abstract: A display panel and a display device are provided. A first entity portion is connected with a data line and a signal trace, and a first gap is provided between the first entity portion and a first dummy portion. The display panel includes a first metal layer and a second metal layer that are stacked. The first entity portion includes a first portion located on the first metal layer. The first dummy portion includes a third portion located on the first metal layer. The first portion includes a first end of the first entity portion, and the third portion includes a first end of the first dummy portion.
    Type: Application
    Filed: December 11, 2023
    Publication date: July 17, 2025
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Minchen DU, Shaojing WU
  • Publication number: 20250234758
    Abstract: Disclosed are a display panel, a manufacturing method thereof, and a display device. A plurality of openings are provided in a first refractive index layer; a second refractive index layer is disposed at a side of the first refractive index layer away from a spacer layer; a refraction compensation portion is provided in the opening and between the second refractive index layer and the spacer layer, and a refractive index of the refraction compensation portion is less than that of the second refractive index layer, and the refractive index of the refraction compensation portion is less than that of the spacer layer.
    Type: Application
    Filed: December 1, 2023
    Publication date: July 17, 2025
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Feng XU
  • Publication number: 20250234759
    Abstract: An OLED display panel includes: a base substrate; a light-emitting device layer situated on one side of the base substrate, which includes multiple light-emitting units; an encapsulation layer positioned on one side of the light-emitting device layer that faces away from the base substrate; an insulation layer positioned on one side of the encapsulation layer that faces away from the base substrate, which includes multiple protruding structures corresponding to the light-emitting units; a functional layer positioned on one side of the insulation layer that faces away from the base substrate; and a planarization layer positioned on one side of the functional layer that faces away from the base substrate. A refractive index of the functional layer is not less than a refractive index of the planarization layer. This configuration not only enhances the light output efficiency of the OLED device but also improves its reliability and mechanical resistance.
    Type: Application
    Filed: October 30, 2024
    Publication date: July 17, 2025
    Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Jing NI
  • Patent number: 12361878
    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: Grant
    Filed: December 29, 2023
    Date of Patent: July 15, 2025
    Assignee: Xiamen Tianma Display Technology Co., Ltd.
    Inventors: Weixing Liu, Ying Sun
  • Patent number: 12361872
    Abstract: Brightness compensation method and brightness compensation devices are provided. The brightness compensation method includes: obtaining brightness values of subpixels in a frame of display image; determining a first compensation gain according to the brightness values of the subpixels; obtaining position coordinates corresponding to the subpixels according to positions of the subpixels in a coordinate system; obtaining second compensation gains corresponding to the subpixels according to the position coordinates corresponding to the subpixels; and performing a brightness compensation on the frame of display image according to the second compensation gains corresponding to the subpixels and the first compensation gain.
    Type: Grant
    Filed: December 1, 2023
    Date of Patent: July 15, 2025
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Yuchao Zeng
  • Patent number: 12364096
    Abstract: A light-emitting device and an OLED display panel are provided. The light-emitting device includes a charge generation layer. The charge generation layer includes an N-type electron generation layer, a P-type hole generation layer, and a metal activation layer disposed between the two. The metal activation layer is in surface contact with of the N-type electron generation layer and the P-type hole generation layer. It activates a surface energy at contact surfaces, prevents an accumulation of charges to form an electric field in an internal space, and improves a performance and a lifespan of the light-emitting device.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: July 15, 2025
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Zhibing Yi, Jie Yang, Haitao Xu, Zhengshen Hua, Xiaosu Jiang, Yu Zhang, Munjae Lee
  • Publication number: 20250225928
    Abstract: A display panel is provided by the present application. The display panel includes a plurality of sub-pixels, wherein each sub-pixel includes a driving circuit. The driving circuit includes a light-emitting device, a driving transistor, a first transistor, a first capacitor, a second transistor, and a third transistor. A characteristic of the oxide of thin film transistor is used to suppress a gate electrical potential change of the driving transistor within a frame time after the first transistor is turned off by electrically connecting a drain electrode of the first transistor and a gate electrode of the driving transistor.
    Type: Application
    Filed: December 21, 2021
    Publication date: July 10, 2025
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Xuanyun WANG, Chao DAI, Fang QIN
  • Publication number: 20250228111
    Abstract: A display panel and a display device are disclosed. The display panel includes an underlay substrate, a light emitting functional layer, a light shielding layer, a light extraction layer, and a light filter layer. The light emitting functional layer includes a plurality of light emitting units. The light shielding layer includes a plurality of first apertures. The first apertures are disposed to correspond to the light emitting units. The light extraction layer covers sidewalls of the first apertures and comprises a plurality of second apertures. The light filter layer includes a plurality of light filter units. The light filter units are filled in the second apertures, and a refractive index of the light extraction layer is less than a refractive index of the light filter unit.
    Type: Application
    Filed: June 28, 2023
    Publication date: July 10, 2025
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Jing NI
  • Patent number: 12354546
    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: Grant
    Filed: December 29, 2023
    Date of Patent: July 8, 2025
    Assignee: Tianma Advanced Display Technology Institute (Xiamen) Co., Ltd.
    Inventor: Yingteng Zhai