Patents Assigned to Wuhan Tianma Micro-Electronics Co., Ltd.
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Patent number: 11882743Abstract: A display panel and a display apparatus are provided. The display panel includes pixel circuits in a display region, a light-emitting device, and signal lines. The pixel circuits are electrically connected to the light-emitting devices, and the signal lines are electrically connected to the pixel circuits. The signal lines include constant voltage signal lines extending in a first direction and connected to a constant voltage terminal. The display region includes a first display region and a second display region. The constant voltage signal lines include first constant voltage signal lines located in the first display region and second constant voltage signal lines located in the second display region. A distance between two adjacent first constant voltage signal lines in the first display region is D1, and a distance between two adjacent second constant voltage signal lines in the second display region is D2, where D1?D2.Type: GrantFiled: December 30, 2022Date of Patent: January 23, 2024Assignee: WuHan TianMa Micro-electronics CO., LTD.Inventors: Yangzhao Ma, Meihong Wang, Hao Dai, Pengcheng Mu, Lida Li
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Publication number: 20240021149Abstract: A display panel including sub-pixels each including a pixel circuit and a light-emitting element. The pixel circuit includes a plurality of anode reset circuits. The sub-pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel. Anode reset circuits in the red sub-pixel and the blue sub-pixel are configured to respectively reset anodes of the light-emitting elements in the red sub-pixel and the blue sub-pixel by using a first anode reset voltage. The anode reset circuit of the green sub-pixel is configured to reset an anode of the light-emitting element of the green sub-pixel by using a second anode reset voltage greater than the first anode reset voltage.Type: ApplicationFiled: July 25, 2023Publication date: January 18, 2024Applicant: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventor: Rui LI
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Patent number: 11877493Abstract: A display panel includes: a first display region used for disposing a sensor; a second display region surrounding the first display region; first pixel units in the first display region; second pixel units in the second display region; and an array substrate, where the array substrate includes a plurality of first data lines and a plurality of second data lines, and the plurality of first data lines pass through the first display region; where in the first display region, each of the plurality of first data lines is electrically connected to a sub-pixel of the first pixel units.Type: GrantFiled: July 8, 2022Date of Patent: January 16, 2024Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.Inventors: Shoufu Jian, Dongliang Dun
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Patent number: 11871511Abstract: Provided are a flexible circuit mother board and a detection method. The flexible circuit mother board includes flexible circuit daughter boards, at least one detection terminal group and external pad groups corresponding to the flexible circuit daughter boards in one-to-one correspondence. Each flexible circuit daughter board has a bonding pad area adjacent to a corresponding one of the plurality of external pad groups. Each detection terminal group detects at least one flexible circuit daughter board, and each of the at least one detection terminal group comprises a plurality of detection terminals. Each flexible circuit daughter board includes a plurality of capacitors including a first electrode plate and a second electrode plate. Each of the first electrode plate and the second electrode plate is electrically connected to one detection terminal.Type: GrantFiled: August 26, 2020Date of Patent: January 9, 2024Assignee: WuHan TianMa Micro-electronics CO., LTD.Inventors: Han Wu, Houfu Gong, Zhenhua Liang, Xiang Huang
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Patent number: 11869434Abstract: Display panel and display device are provided. The display panel includes a display area and a non-display area. The display panel includes a plurality of first subpixels on the substrate. A first subpixel of the plurality of first subpixels includes a first pixel circuit and a light-emitting element electrically connected to the first pixel circuit. The first pixel circuit at least includes a first type of double-gate transistor. A first gate of the first type of double-gate transistor is connected to a first control line. A second gate of the first type of double-gate transistor is connected to a second control line. The display panel further includes a second detection line having a same width as the second control line.Type: GrantFiled: August 25, 2022Date of Patent: January 9, 2024Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCHInventor: Peng Zhang
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Patent number: 11871629Abstract: Provided are an organic light-emitting display panel and a display device. The organic light-emitting display panel includes: a plurality of organic light-emitting units, a first display area and a second display area. The plurality of organic light-emitting units includes first organic light-emitting units in the first display area and second organic light-emitting units in the second display area. The first organic light-emitting units share a first cathode. The second organic light-emitting units include at least one organic light-emitting unit group, each of the at least one organic light-emitting unit group includes at least one organic light-emitting unit. The at least one organic light-emitting unit in a same organic light-emitting unit group shares a second cathode. The second cathode has a zigzag edge segment.Type: GrantFiled: April 27, 2022Date of Patent: January 9, 2024Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Ruili Cui, Yangzhao Ma, Jiazhu Zhu, Yongzhi Wang, Shanfu Yuan, Yingjie Chen, Tao Peng, Ruiyuan Zhou
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Patent number: 11862087Abstract: A display device includes a plurality of pixels and a control circuit configured to control brightness of the plurality of pixels. Each of the plurality of pixels includes a light-emitting element and a pixel circuit configured to control light emission of the light-emitting element. The pixel circuit includes a driving transistor configured to supply electric current to the light-emitting element, and a storage capacitor configured to store voltage to control the electric current to be supplied by the driving transistor to the light-emitting element. The control circuit is configured to determine a statistic of brightness of pixels specified by one or more video frames with a predetermined method, determine a length of a threshold compensation period for which the storage capacitor applies threshold compensation to the driving transistor based on the statistic, and control the pixel circuit based on the threshold compensation period.Type: GrantFiled: September 7, 2022Date of Patent: January 2, 2024Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Ruyue Zhang, Genshiro Kawachi
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Patent number: 11862048Abstract: A flexible display apparatus and an electronic device are provided in the present disclosure. The flexible display apparatus includes a flexible display panel, a supporting structure, and a locking part. Both the flexible display panel and the supporting structure are capable of being rolled in the hollow space, the supporting structure includes a plurality of supporting plates, and at least a first degree of rotation freedom is between two adjacent supporting plates. The supporting structure has an unfolded state; in the unfolded state, both the supporting structure and the flexible display panel at least partially extend out of the main body structure; and the locking part acts on the supporting structure that extends from the main body structure to limit the first degree of rotation freedom of the plurality of supporting plates, such that the supporting structure flatly supports the flexible display panel.Type: GrantFiled: December 29, 2021Date of Patent: January 2, 2024Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Shengming Li, Gaojun Huang
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Publication number: 20230418405Abstract: Display panel and display device are provided. The display panel includes an array substrate and a cover plate disposed opposite to the array substrate, touch electrode layers on a side of the cover plate facing the array substrate, and a plurality of first touch pads and a plurality of second touch pads disposed opposite to the plurality of the first touch pads. Each of the array substrate and the cover plate include a display area and a non-display area at least partially surrounding the display area. The non-display area of the array substrate includes a step area provided with bonding pads. The non-display area of the array substrate includes at least one irregularly-shaped area adjacent to the step area. A first touch pad is electrically connected to a second touch pad.Type: ApplicationFiled: September 30, 2022Publication date: December 28, 2023Applicant: Wuhan Tianma Micro-Electronics Co, Ltd. Shanghai Branch.Inventors: Qibing WEI, Peng ZHANG, Xingyao ZHOU, Wei LIU
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Publication number: 20230419904Abstract: Provided are a display panel, a method for driving a display panel, and a display apparatus. The display panel includes a light-emitting element, a pixel driver circuit, and a control circuit. The pixel driver circuit includes a driver transistor and a first light emission control switch. A working mode of the display panel includes a first mode. In the first mode, a working cycle of the pixel driver circuit includes a data writing phase and at least one data holding phase subsequent to the data writing phase. The data writing phase includes at least one first light-emitting period. The data holding phase includes at least one second light-emitting period. The control circuit controls a duration of a first one of the at least one first light-emitting period in the data writing phase to be less than a duration of one of the at least one second light-emitting period.Type: ApplicationFiled: September 8, 2023Publication date: December 28, 2023Applicants: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai BranchInventors: Jian KUANG, Mengmeng ZHANG, Xingyao ZHOU, Yana GAO
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Patent number: 11853502Abstract: Display panel and display device are provided. The display panel includes an array substrate and a cover plate disposed opposite to the array substrate, touch electrode layers on a side of the cover plate facing the array substrate, and a plurality of first touch pads and a plurality of second touch pads disposed opposite to the plurality of the first touch pads. Each of the array substrate and the cover plate include a display area and a non-display area at least partially surrounding the display area. The non-display area of the array substrate includes a step area provided with bonding pads. The non-display area of the array substrate includes at least one irregularly-shaped area adjacent to the step area. A first touch pad is electrically connected to a second touch pad.Type: GrantFiled: September 30, 2022Date of Patent: December 26, 2023Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCHInventors: Qibing Wei, Peng Zhang, Xingyao Zhou, Wei Liu
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Publication number: 20230410734Abstract: A display panel includes a light-emitting element and a pixel circuit electrically connected to each other. In an embodiment, at least one light-emitting phase of the pixel circuit each includes n light-emitting sub-phases, and the pixel circuit is configured to transmit a light-emitting signal to the light-emitting element in at least one of the n light-emitting sub-phases. In an embodiment, a duration ti of transmitting the light-emitting signal to the light-emitting element by the pixel circuit in the ith light-emitting sub-phase of the n light-emitting sub-phases is smaller than a duration tj of transmitting the light-emitting signal to the light-emitting element by the pixel circuit in the jth light-emitting sub-phase of the n light-emitting sub-phases, where 0<ti, 0<tj, 1?i?n, l?j?n, and i?j.Type: ApplicationFiled: August 8, 2023Publication date: December 21, 2023Applicant: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Tianchun ZHENG, Jiao WU
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Patent number: 11848336Abstract: An array substrate, a display panel, and a display apparatus are provided. The array substrate includes a substrate and a first thin-film transistor located on the substrate. In an embodiment, the first thin-film transistor includes a channel and a gate electrode. In an embodiment, an orthographic projection of the gate electrode on the substrate overlaps with an orthographic projection of the channel on the substrate. In an embodiment, the gate electrode comprises a first zone and a second zone that are arranged in a first direction. In an embodiment, the channel overlapping with the first zone in a direction perpendicular to the substrate has a total width W1 in a second direction perpendicular to the first direction, the channel overlapping with the second zone in a direction perpendicular to the substrate has a total width W2 in the second direction, and W1/W2?3.Type: GrantFiled: September 3, 2021Date of Patent: December 19, 2023Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCHInventors: Huiping Chai, Lijing Han, Guobing Wang
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Patent number: 11844263Abstract: A display panel is provided in the present disclosure. The display panel includes a first display region and a second display region, and a first substrate including a first base substrate. The first display region includes: a plurality of organic light-emitting elements on the first base substrate, a first sub-display region and a second sub-display region. The first sub-display region includes a plurality of first sub-light-transmitting holes. The plurality of first sub-light-transmitting holes do not overlap the plurality of organic light-emitting elements along a direction perpendicular to a plane of the first base substrate, and the plurality of first sub-light-transmitting holes are non-rectangular. The second sub-display region includes a plurality of second sub-light-transmitting holes.Type: GrantFiled: January 21, 2022Date of Patent: December 12, 2023Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Yujiao Liang, Yangzhao Ma
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Publication number: 20230395612Abstract: A display panel and a display device are provided. The display panel includes pixels and first signal lines electrically connected to the pixels, wirings, and a shielding part. The pixels, the first signal lines, and at least part of one wiring are located in a display region. The wirings include first and second wirings, one first wiring is electrically connected to one first signal line, and the second wiring is insulated from the first wiring, one second wiring has a fracture end located in the display region, and one first wiring is located on a side of the fracture end away from one of the at least one second wiring. In a direction perpendicular to a plane of the display panel, the shielding part is located at a side of the wirings close to a light-exiting side of the display panel, and the shielding part overlaps with the fracture end.Type: ApplicationFiled: August 22, 2023Publication date: December 7, 2023Applicant: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventor: Fei LI
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Publication number: 20230393685Abstract: 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: ApplicationFiled: August 22, 2023Publication date: December 7, 2023Applicants: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai BranchInventors: Qibing WEI, Peng ZHANG
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Publication number: 20230395012Abstract: 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: ApplicationFiled: August 22, 2023Publication date: December 7, 2023Applicants: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai BranchInventor: Bojia LYU
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Patent number: 11832492Abstract: A display panel, a display control method and a display device are provided. The display panel includes a display region and a non-display region, and a plurality of pixel units distributed in the display region in an array. Each pixel unit of the plurality of pixel units includes sub-pixels of at least three colors. The display panel also includes a control unit disposed in the non-display region and configured, in a first display mode, to control the sub-pixels of a same color of at least two pixel units of the plurality of pixel units to share a data signal.Type: GrantFiled: March 16, 2021Date of Patent: November 28, 2023Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCHInventors: Mengmeng Zhang, Lilian Kuang
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Publication number: 20230368721Abstract: The display panel includes pixel groups including multiple sub-pixels; and driving signal lines. One driving signal line corresponds to at least one pixel group of the pixel groups, and multiple driving signal lines sequentially output a charging enabling level to drive corresponding pixel groups. The sub-pixel includes a first color sub-pixel that includes a first sub-pixel and a second sub-pixel. The first and second sub-pixels are arranged along an arrangement direction of the pixel group, and the second sub-pixel and the first sub-pixel are spaced by other first color sub-pixels whose number is not greater than a preset number. In a first mode, the display panel receives a noise signal, and a phase difference between charging enabling levels provided by the driving signal lines corresponding to the first sub-pixel and the second sub-pixel is non-integer times a noise cycle.Type: ApplicationFiled: July 20, 2023Publication date: November 16, 2023Applicants: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai BranchInventors: Zhe ZHAO, Yana GAO, Xingyao ZHOU, Mengmeng ZHANG, Zhi LIU, Shuai YANG, Chenguang SUN
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Patent number: 11818939Abstract: A display panel and an electronic device are provided. The display panel includes a substrate including a display area and a frame area surrounding the display area, a plurality of sub-pixels located in the display area, and a plurality of pins and a plurality of alignment marks located in the frame area. The plurality of pins includes a first pin and a second pin. At least one alignment mark of the plurality of alignment marks is a first photosensitive element. The first photosensitive element is connected to the first pin. The second pin is connected to the plurality of sub-pixels.Type: GrantFiled: February 3, 2021Date of Patent: November 14, 2023Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD, SHANGHAI BRANCHInventors: Lei Suo, Rucuo Wei, Cheng Tang