Patents Assigned to TIANMA MICRO-ELECTRONICS CO., LTD
  • Patent number: 12289989
    Abstract: The present disclosure belongs to technical field of OLEDs, and provides a compound suitable as a hole transport material and an electron blocking material of OLEDs. The compound has a general structure according to [Chemical Formula 1], in which Ar1 and Ar2 are each independently selected from a hydrogen atom, a substituted or unsubstituted C5-C40 aryl, or a substituted or unsubstituted C5-C40 heteroaryl; m and n are each an integer independently selected from 0, 1, or 2; X is selected from O, S, or —NR—; R is selected from hydrogen, or a substituted or unsubstituted C5-C40 aryl; Ar3 has a structure according to [Chemical Formula 2], in which R1-R8 are each independently selected from a hydrogen atom, or a substituted or unsubstituted C5-C40 aryl; Y is selected from O, S, or —NR?—; and R? is selected from a hydrogen atom, or a substituted or unsubstituted C5-C40 aryl.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: April 29, 2025
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Lei Zhang, Wei Gao, Jinghua Niu, Wenpeng Dai, Wenjing Xiao, Xia Li
  • Patent number: 12274138
    Abstract: A display panel and a display device. The display panel includes: a display area including an optical component area and a regular display area, a first light-emitting device is arranged in the optical component area, a second light-emitting device is arranged in the regular display area, the first light-emitting device is electrically connected with a first pixel circuit, and the second light-emitting device is electrically connected with a second pixel circuit; a transparent conductive layer arranged in the optical component area, the transparent conductive layer includes a connection wire, and the connection wire includes an electrode transition line electrically connected with the first light-emitting device; and a metal external connection line being electrically connected with the electrode transition line and the first pixel circuit respectively outside the optical component area. In the present disclosure, the display effect is ensured while the transparency of the optical component area is ensured.
    Type: Grant
    Filed: January 18, 2023
    Date of Patent: April 8, 2025
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Yangzhao Ma, Zhiqiang Xia
  • Patent number: 12254153
    Abstract: A touch panel and a display apparatus are provided. The touch panel includes a first component region and a touch region, first-type touch electrode blocks, and m2 first connecting lines. First and second touch regions are respectively located at two sides of the first component region along a first direction. The first-type touch electrode blocks include first touch electrode blocks in the first touch region and second touch electrode blocks in the second touch region. m1 first touch electrode groups are arranged in the first touch region along a second direction. First connecting lines are respectively electrically connected to the first touch electrode groups and the second touch electrode blocks.
    Type: Grant
    Filed: August 22, 2023
    Date of Patent: March 18, 2025
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Qibing Wei, Peng Zhang
  • Patent number: 12239004
    Abstract: A display panel includes a display area and a non-display area; the display area includes multiple first sub-pixel minimum repeating units; the multiple first sub-pixel minimum repeating units are sequentially and periodically arranged in a first direction, and in the first direction, a center distance between any two adjacent ones of the multiple first sub-pixel minimum repeating units is d1; the non-display area includes a first offset mark A1 and a second offset mark A2 arranged in the first direction; a center distance L1 between the first offset mark A1 and the second offset mark A2 is an integral multiple of the center distance d1 between the first sub-pixel minimum repeating units.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: February 25, 2025
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Bing Han, Yu Xin
  • Patent number: 12232359
    Abstract: Provided are a display panel and a display device. The display panel includes a substrate, a light-emitting element located on a side of the substrate, and a deformation module located between the substrate and the light-emitting element and including at least one deformation element. In a direction perpendicular to a plane where the substrate is located, the at least one deformation element in the deformation module overlaps the light-emitting element. Provided are a display panel and a display device to change a light-emitting angle of a light-emitting element, so that users can obtain a better view angle and the display effect can be improved.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: February 18, 2025
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Qianglong Li, Xu Zhang, Jiancheng Zhao
  • Patent number: 12223890
    Abstract: A driving method and apparatus, an electronic device, and a storage medium, which ameliorate smearing when image switching are described. In an embodiment, a driving method for an organic light-emitting diode (OLED) display panel includes: correcting, if a current display brightness value of the OLED display panel is below a brightness threshold, grayscale data of an Nth frame to obtain corrected grayscale data of the Nth frame; obtaining a compensation value of an (N+1)th frame according to grayscale data of the (N+1)th frame and the corrected grayscale data of the Nth frame; performing compensation according to the compensation value of the (N+1)th frame and the grayscale data of the (N+1)th frame to obtain compensated grayscale data of the (N+1)th frame; and outputting the compensated grayscale data of the (N+1)th frame to the OLED display panel.
    Type: Grant
    Filed: June 13, 2023
    Date of Patent: February 11, 2025
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Mingxia Xu
  • 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: 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: 12147104
    Abstract: A display device includes a driver circuit on a display panel, a conductive frame that is disposed behind the display panel and supplies a frame ground, a control printed board disposed behind the conductive frame, and a conductive shield cover covering at least a part of the back face of the control printed board. The control printed board includes a front ground pad and a backside ground pad. The front ground pad is electrically connected to the back face of the conductive frame. The backside ground pad is electrically connected to the conductive shield cover. A part of an end of the conductive shield cover is electrically connected to the partial region.
    Type: Grant
    Filed: April 17, 2024
    Date of Patent: November 19, 2024
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Noboru Okuzono, Hitoshi Hiratsuka, Katsuhiro Ito
  • 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: 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: 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: 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: 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: 12082499
    Abstract: An organic compound has a structure as shown in Formula (I). The compound has a phosphorus-oxygen five-membered ring combined with a five-membered ring as an electron acceptor unit. The compound has a high luminous efficiency and a lower material cost than phosphorescent metal complexes. The compound can be built into a stack structure of organic optoelectronic device, such as OLED. The resultant organic optoelectronic device includes an anode, a cathode, and at least one organic thin film located between the anode and the cathode, the organic thin film contains the compound as shown in Formula (I).
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: September 3, 2024
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Wenjing Xiao, Wei Gao, Wenpeng Dai, Lei Zhang, Jinghua Niu, Yi Liu
  • Patent number: 12080247
    Abstract: Provided are a method for transmitting data, an electronic device, and a non-transitory computer-readable medium. The method includes determining whether a serial number of a data line corresponding to the current channel datum is a staring serial number of a first predetermined serial number range, when yes, mapping a staring serial number or an ending serial number of a first mapping range as the serial number of the data line corresponding to the current channel datum, and resetting a counting value; and determining whether the serial number of the data line corresponding to the current channel datum is not the starting serial number of the first predetermined serial number range, and when yes, increasing a current counting value by 1 within a first counting range, determining a current serial number step, and mapping a sum of the current serial number step and another serial number as the serial number.
    Type: Grant
    Filed: June 12, 2023
    Date of Patent: September 3, 2024
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Wenbin Dai
  • Patent number: 12073760
    Abstract: A method and a device for driving a display panel, and a display device are provided. The method including dividing a frame into N sub-frames, the N sub-frames corresponding to N sets of first gamma curves respectively, and the N sub-frames including at least two consecutive first sub-frames; obtaining a display grayscale of a sub-pixel in each first sub-frame based on an original grayscale of a sub-pixel in a frame image to be displayed, a set of second gamma curves, and one set of first gamma curves corresponding to the first sub-frame; and driving the display panel to display sub-frame images sequentially during the N sub-frames. A display voltage of the sub-pixel when the display panel displays one sub-frame image during one first sub-frames is obtained based on the set of second gamma curves and the display grayscale of the sub-pixel in the first sub-frame.
    Type: Grant
    Filed: August 22, 2023
    Date of Patent: August 27, 2024
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventor: Bojia Lyu
  • Patent number: 12069907
    Abstract: The present disclosure provides a display panel and a display device. The display panel includes pixel circuits arranged in a matrix, and a blocking unit. Each pixel circuit includes: a driving transistor; a first switch transistor; a second switch transistor; and a third switch transistor. The blocking unit is configured to receive a fixed potential signal, and at least a partial area of the blocking unit is located between a first semiconductor connection portion and a second semiconductor connection portion, the first semiconductor connection portion is connected between a second electrode of the first switch transistor and a gate electrode of the driving transistor, and the second semiconductor connection portion is electrically connected between a first electrode of the second switch transistor and a data line.
    Type: Grant
    Filed: April 18, 2023
    Date of Patent: August 20, 2024
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Lijing Han, Xian Chen, Yu Xin