Patents Assigned to Wuhan Tianma Micro-Electronics Co., Ltd.
  • Patent number: 12205527
    Abstract: A display panel has a non-display area and a display area including first and second display areas. The display panel includes pixel circuits located in the display area, and driving circuits located in the non-display area. Each pixel circuit includes a driving transistor and a first transistor electrically connected to a gate of the driving transistor. The pixel circuits include first pixel circuits electrically connected to pixels located in the first display area and second pixel circuits electrically connected to pixels located in the second display area. A gate of the first transistor in the first pixel circuit and a gate of the first transistor in the second pixel circuit are coupled to different driving circuits.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: January 21, 2025
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD. SHANGHAI BRANCH, WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Xingyao Zhou, Yana Gao, Kang Yang, Wei Liu, Qijun Yao
  • Patent number: 12200964
    Abstract: A display panel and a display device are provided. A first angle is configured to be different from the second angle, to optimize bottom angles of a low-refractivity layer at a first color resist and a second color resist that have different thicknesses, so that increments of light-emitting efficiency of the display panel at the first color resist and at the second color resist are substantially the same, to avoid color deviation in light-emitting when the display panel operates, improving the light-emitting effect of the display panel, and achieving a better display effect of the display panel.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: January 14, 2025
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Shucheng Ge
  • Patent number: 12198622
    Abstract: Provided are a display panel and a display device. The display panel includes a display area and pixel circuits. The display area includes a first display area and a second display area. The first display area is used as an optical element reservation area. The pixel circuits include a first pixel circuit and a second pixel circuit. The first display area includes minimum repeating units. One of the minimum repeating units includes first light-emitting elements of at least three different colors. Multiple first light-emitting elements include a light-emitting element of a first color, a light-emitting element of a second color, and a light-emitting element of a third color. The first pixel circuit is configured to drive first light-emitting elements to emit light. In at least one minimum repeating unit, at least two first light-emitting elements of at least one same color are electrically connected to a same first pixel circuit.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: January 14, 2025
    Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Yangzhao Ma, Hao Dai
  • Patent number: 12193286
    Abstract: Display panel and display device are provided. The display panel includes a display area and a non-display area surrounding the display area. The display area includes a plurality of scan lines extending in a first direction and a plurality of data lines extending in a second direction, the first direction intersects the second direction. The non-display area includes a bonding area. The bonding area includes a plurality of pads arranged in a third direction. A direction perpendicular to the third direction is a fourth direction. An angle formed by the second direction and the fourth direction is ?, and 0°<?<90°.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: January 7, 2025
    Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma MicroElectronics Co., Ltd. Shanghai Branch
    Inventors: Yue Li, Xingyao Zhou, Zhuan Gao, Qingxia Wang, Yuantao Wu
  • Patent number: 12193284
    Abstract: A display panel and a display device are provided. The display panel includes first, second and third data lines located in a display area, first and second compensation capacitors located in a first non-display area and have a same capacitance, and a peripheral circuit located in a second non-display area. The first and second data lines are electrically connected to M sub-pixels, and the third data line is electrically connected to N sub-pixels, where 1?M<N, M and N are integers. The first and second compensation capacitors are electrically connected to the first and second data lines, respectively. The first non-display area has a length gradually decreasing along a direction parallel to the first direction and along a direction from the display area to the second non-display area, and the length is a size of the first non-display area along the second direction.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: January 7, 2025
    Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma Micro-Electronics Co., Ltd. Shanghai Branch
    Inventor: Peng Zhang
  • Patent number: 12175941
    Abstract: A display device determines a gray level for a first pixel based on video data, determines whether the first pixel is in a first deterioration mode or a second deterioration mode following the first deterioration mode based on a driving history of the first pixel, determines a data signal to be supplied to the first pixel based on the gray level and the driving history of the first pixel with reference to first adjustment information for the first deterioration mode in a case of determining that the first pixel is in the first deterioration mode, and determines a data signal to be supplied to the first pixel based on the gray level and the driving history of the first pixel with reference to second adjustment information for the second deterioration mode in a case of determining that the first pixel is in the second deterioration mode.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: December 24, 2024
    Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Yojiro Matsueda, Masamichi Shimoda
  • Patent number: 12167627
    Abstract: A display panel and a display device are provided. The display panel includes a substrate, sub-pixels, a color conversion layer, and a color filter layer. At least one sub-pixel each includes a light-emitting element. The at least one light-emitting element of the at least one sub-pixels includes at least one blue light light-emitting element. The color conversion layer is configured to convert a color of light emitted by the light-emitting element. The color conversion layer includes red and green conversion layers. The red conversion layer is configured to convert blue light into red light, and the green conversion layer is configured to convert blue light into green light. The color filter layer includes red and green color resists. In a direction perpendicular to a plane of the substrate, the red color resist overlaps the red conversion layer, and the green color resist overlaps the green conversion layer.
    Type: Grant
    Filed: April 24, 2023
    Date of Patent: December 10, 2024
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Sitao Huo
  • Publication number: 20240397759
    Abstract: Provided are a display panel and display device. The display panel includes an optical component area, where the optical component area includes a substrate, an insulating layer and a first electrode. The insulating layer includes a first insulating layer and a second insulating layer, the second insulating layer is located on a side of the first insulating layer facing away from the substrate, and the first insulating layer includes a first insulating sub-layer in contact with the second insulating layer. The first electrode is located on a side of the second insulating layer facing away from the substrate, and the first insulating sub-layer is provided with at least one first insulating opening. In the thickness direction of the display panel, the second insulating layer covers the at least one first insulating opening, and the first electrode and the at least one first insulating opening at least partially overlap.
    Type: Application
    Filed: April 21, 2022
    Publication date: November 28, 2024
    Applicant: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Lei WANG, Hao DAI, Meihong WANG, Yangzhao MA
  • Patent number: 12148372
    Abstract: A driving circuit and a display panel are provided. The driving circuit includes a pixel circuit and a demultiplexing circuit. The pixel circuit includes a driving transistor, a light-emitting device, and a data writing module. The driving transistor is connected between a first power signal terminal and the light-emitting device in series, to generate a driving current. The data writing module is connected between the driving transistor and the demultiplexing circuit in series, to provide a data signal to the driving transistor. An output terminal of the demultiplexing circuit is connected to an input terminal of the data writing module through a data line. The demultiplexing circuit is configured to write the data signal to the data line when the driving transistor is performing threshold compensation.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: November 19, 2024
    Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma MicroElectronics Co., Ltd. Shanghai Branch
    Inventors: Mengmeng Zhang, Yue Li, Yuantao Wu, Jing Huang
  • Patent number: 12144404
    Abstract: The present disclosure provides a wristband and wristwatch. The wristband includes a wristband main body, configured to encircle on a wearing body, that the wristband main body includes a belt body and an inflatable bag arranged on the belt body, and a release structure is configured in a wall part of the wristband main body that surrounds the inflatable bag and the release structure communicates with an inner cavity of the inflatable bag, to release gas from the inflatable bag; and an inflating device, provided on the wristband main body, that the inflating device includes an inflating component and a driving component, the inflating component communicates with the inflatable bag, and the driving component is configured to move following a move of the wearing body and to drive the inflating component to inflate the inflatable bag.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: November 19, 2024
    Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventor: Xinming Li
  • Patent number: 12144220
    Abstract: A display panel having a first display region and a second display region is provided. The display panel includes sub-pixels. Light transmittance of a non-light-emitting region in the second display region is greater than light transmittance of a non-light-emitting region in the first display region. For a first sub-pixel of the sub-pixels located in the first display region and a second sub-pixel of the sub-pixels located in the second display region that emit a same color, the first sub-pixel corresponds to a first pixel circuit, and the second sub-pixel corresponds to a second pixel circuit, and a width-to-length ratio of a driving transistor in the second pixel circuit is greater than a width-to-length ratio of a driving transistor in the first pixel circuit.
    Type: Grant
    Filed: March 20, 2023
    Date of Patent: November 12, 2024
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Yu Xin, Kang Yang, Lijing Han, Xian Chen
  • Patent number: 12142170
    Abstract: A three-dimensional-image display device includes a display unit, a variable focus lens unit, and a controller. The display unit sequentially displays a first image displayed by a first image signal and a second image displayed by a second image signal, and that projects a display light of the first image and a display light of the second image. The variable focus lens unit switches the focal lengths for the display lights to respectively form, as virtual images, the first image and the second image on a first display surface and a second display surface. The controller controls, on the basis of a start timing at which writing, of an image signal of a different image, to pixels of the display unit starts, a projecting timing at which the display unit projects the display light of the first image and the display light of the second image.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: November 12, 2024
    Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Naoyasu Ikeda, Tetsushi Sato
  • Patent number: 12134615
    Abstract: The present disclosure provides a compound having a structure represented by Formula 1, where X1-X4 are each independently selected from a carbon atom or a nitrogen atom, and at least two of X1-X4 are each a nitrogen atom; R1-R4 are independently absent or selected from hydrogen, C1-C20 alkyl, C1-C20 alkoxy, C1-C20 alkylthio, C1-C20 alkylamino, C6-C30 aryl, or C2-C30 heteroaryl; m is 1 or 2; n and q are each independently selected from 0, 1, or 2, n+q?1, and m+n+q=3; Ar is C6-C30 aryl. The molecular structure of the compound has a nitrogen-containing multidentate ligand suitable to form complexes with metal Yb or LiQ to form a metal organic complex having multidentate bondings. When applied to an OLED device, it can effectively lower the turn-on voltage and operating voltage, improve the efficiency, and prolong lifetime of the OLED device.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: November 5, 2024
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Wei Gao, Lu Zhai, Lei Zhang, Quan Ran, Wenpeng Dai, Yuyang Guo, Xia Li
  • Patent number: 12133400
    Abstract: An organic light-emitting device includes an anode electrode and a cathode electrode that are arranged facing each other; a light-emitting layer arranged between the anode electrode and the cathode electrode; and a hole transport layer arranged between the anode electrode and the light-emitting layer, and including one or more layers. A layer, of the one or more layers of the hole transport layer, contacting the light-emitting layer has a HOMO energy level 12bH that is higher than a HOMO energy level 13H of the light-emitting layer. A difference ?E1 between the HOMO energy level 12bH of the layer contacting the light-emitting layer of the hole transport layer and the HOMO energy level 13H of the light-emitting layer is 0.32 eV or less.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: October 29, 2024
    Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Keita Hamada, Hiromu Hanashima, Shigeru Mori
  • Patent number: 12133413
    Abstract: A display panel and a display device are provided. The display panel includes a substrate, a plurality of sub-pixels, and a color conversion layer. At least one sub-pixel of the plurality of sub-pixels each includes a light-emitting element. The color conversion layer is configured to convert a color of light emitted by the light-emitting element. The at least one light-emitting element of the at least one sub-pixel includes at least one blue light light-emitting element. The color conversion layer includes a red conversion layer and a green conversion layer, the red conversion layer is configured to convert blue light into red light, and the green conversion layer is configured to convert blue light into green light. The red conversion layer and the green conversion layer have different areas or different thicknesses.
    Type: Grant
    Filed: April 24, 2023
    Date of Patent: October 29, 2024
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Sitao Huo
  • Patent number: 12125422
    Abstract: A display device includes a deterioration evaluation region including dummy pixels and a display region. A control circuit determines a gray level for a first display pixel and determines whether the first display pixel is in a first deterioration mode or a second deterioration mode based on a driving history of the first display pixel. The control circuit determines, in the first deterioration mode, a data signal to be supplied to the first display pixel based on the gray level and the driving history of the first display pixel. The control circuit determines, in the second deterioration mode, a data signal to be supplied to the first display pixel based on the gray level, the driving history of the first display pixel, and measurement results about a current-voltage characteristic acquired from dummy pixels in the deterioration evaluation region of the same color as the first display pixel.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: October 22, 2024
    Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Yojiro Matsueda, Masamichi Shimoda
  • Patent number: 12112706
    Abstract: A driving transistor is configured to control driving current for the light-emitting element. A first capacitive element and a second capacitive element are connected in series between a gate and a source of the driving transistor. A first switching transistor is configured to switch connection/disconnection between a data line and an intermediate node located between the first capacitive element and the second capacitive element. A second switching transistor is configured to switch connection/disconnection between the gate and a drain of the driving transistor. A third switching transistor is configured to switch connection/disconnection between the intermediate node and a reference power line. A fourth switching transistor is configured to switch supply/non-supply of driving current from the driving transistor to the light-emitting element. A fifth switching transistor is configured to switch connection/disconnection between an anode of the light-emitting element and a reset power line.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: October 8, 2024
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Jiro Yanase, Yojiro Matsueda
  • Patent number: 12112697
    Abstract: A display method includes obtaining input data of a first color sub-pixel in an N-th frame and in an (N?1)-th frame; looking up, in a first lookup table, predetermined input data of the first color sub-pixel in the N-th frame and a predetermined compensation value corresponding to the input data of the first color sub-pixel in the (N?1)-th frame; obtaining input data of a second color sub-pixel; looking up, in a second lookup table, a first impact factor of input data of the second color sub-pixel in the (N?1)-th frame to the predetermined input data; calculating an actual compensation value at least according to the predetermined compensation value and the first impact factor; calculating target input data of the first color sub-pixel in the N-th frame; and performing display, by the first color sub-pixel, according to the target input data.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: October 8, 2024
    Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventor: Mingxia Xu
  • Patent number: 12106712
    Abstract: A display device includes a display pixel circuit including a display light-emitting element, a reference light-emitting element, and a display driving circuit. The display pixel circuit is configured to control light emission of the display light-emitting element based on a data signal in accordance with video data. The reference light-emitting element is precluded from the control in accordance with video data. The display driving circuit is configured to acquire a reference signal indicating a current-voltage characteristic of the reference light-emitting element, acquire a characteristic signal indicating the current-voltage characteristic of the display light-emitting element, and generate a signal indicating a degree of deterioration of the display light-emitting element based on a difference of the characteristic signal from the reference signal.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: October 1, 2024
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Masamichi Shimoda, Genshiro Kawachi
  • Patent number: 12100322
    Abstract: A stretchable display panel, a control method of the stretchable display panel, and a display device are provided. The stretchable display panel includes a stretchable substrate and a plurality of display units. The stretchable substrate contains a plurality of hollows, and a display unit is disposed corresponding to a hollow. The plurality of display units include a first display unit and a second display unit. In a stretched state, both the first display unit and the second display unit are disposed on a side of the stretchable substrate facing a light-exiting surface. In a first contracted state or a second contracted state, one of the first display unit and the second display unit is disposed on the side of the stretchable substrate facing the light-exiting surface, and the other one is disposed on a side of the stretchable substrate away from the light-exiting surface.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: September 24, 2024
    Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Congjie Wu, Xingchen Qian