Patents Assigned to TIANMA MICRO-ELECTRONICS CO., LTD
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Patent number: 12373052Abstract: A display panel and a display apparatus are described. The display panel includes a plurality of touch units. The touch units include first electrodes and second electrodes that are disposed in a same layer. Adjacent first electrodes along a first direction are connected through a bridge line, and adjacent second electrodes along a second direction are connected through a connecting line. The bridge line is disposed in a different layer from the first electrode, and the connecting line is disposed in a same layer as the second electrode. A display region has a through-hole, and the touch units include a first touch unit that at least partially surrounds the through-hole. The first touch unit includes at least two bridge units, the bridge unit is connected to two adjacent first electrodes along the first direction, and the bridge unit includes at least one bridge line.Type: GrantFiled: January 4, 2024Date of Patent: July 29, 2025Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Yufang Ma, Haiyan Wu
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Patent number: 12340739Abstract: 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: GrantFiled: August 8, 2023Date of Patent: June 24, 2025Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Tianchun Zheng, Jiao Wu
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Patent number: 12333978Abstract: The method includes, in a low-frequency driving mode where a keeping phase is arranged between two active phases, providing a light-emitting control signal with a duty cycle of a % to a pixel circuit during the active phase; and performing first and second switches on the light-emitting control signal during the keeping phase. The first switch is performed before the second switch. Panel brightness at the first switch is higher than panel brightness at the second switch. The duty cycle of the light-emitting control signal is b % after the second switch. b>a. A total duration of active levels of the light-emitting control signal within one frame after the first switch is between a total duration of active levels of the light-emitting control signal with the duty cycle of a % and a total duration of active levels of the light-emitting control signal with the duty cycle of b % within one frame.Type: GrantFiled: January 17, 2024Date of Patent: June 17, 2025Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai BranchInventors: Chenguang Sun, Xingyao Zhou, Yana Gao, Shuai Yang, Mengmeng Zhang, Jian Kuang
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Patent number: 12314092Abstract: A display panel has light-transmitting holes arranged in a first direction and a display region surrounding the light-transmitting holes. The display panel includes first-type signal lines located in the display region and each extending along the first direction, and at least one first connection line. At least one first-type signal line each includes first A segments and at least one first B segment. Each first B segment is located between two adjacent light-transmitting holes, and each first A segment is located at a side of an outermost light-transmitting hole away from the at least one first B segment. One first connection line has a first end electrically connected to one first B segment, and a second end electrically connected to one first A segment or another first B segment, and one first connection line has at least one part located in the display region.Type: GrantFiled: January 3, 2023Date of Patent: May 27, 2025Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventor: Yuehua Yang
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Patent number: 12315464Abstract: A display panel and a display device are provided. The display panel includes at least one pixel circuit and a light emitting element. One pixel circuit includes a driving transistor, a second transistor, a third transistor, and a first light-emission controlling module. The second transistor is connected between a data line and a source of the driving transistor and is configured to provide a data signal. The third transistor is connected between a voltage adjusting signal line and the source of the driving transistor and is configured to provide an adjusting voltage. The first light-emission controlling module is connected between a first power supply terminal and the source of the driving transistor and is configured to provide a power supply voltage. The power supply voltage provided by the first power supply terminal is VP, and the adjusting voltage is VJ, where VP<VJ?VP+3.5V, and/or VP+1V<VJ.Type: GrantFiled: April 27, 2023Date of Patent: May 27, 2025Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Nana Xiong, Jujian Fu
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Patent number: 12289989Abstract: 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: GrantFiled: December 18, 2019Date of Patent: April 29, 2025Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCHInventors: Lei Zhang, Wei Gao, Jinghua Niu, Wenpeng Dai, Wenjing Xiao, Xia Li
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Patent number: 12274138Abstract: 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: GrantFiled: January 18, 2023Date of Patent: April 8, 2025Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Yangzhao Ma, Zhiqiang Xia
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Patent number: 12254153Abstract: 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: GrantFiled: August 22, 2023Date of Patent: March 18, 2025Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai BranchInventors: Qibing Wei, Peng Zhang
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Patent number: 12239004Abstract: 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: GrantFiled: July 15, 2021Date of Patent: February 25, 2025Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCHInventors: Bing Han, Yu Xin
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Patent number: 12232359Abstract: 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: GrantFiled: September 21, 2021Date of Patent: February 18, 2025Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Qianglong Li, Xu Zhang, Jiancheng Zhao
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Patent number: 12223890Abstract: 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: GrantFiled: June 13, 2023Date of Patent: February 11, 2025Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventor: Mingxia Xu
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Patent number: 12205527Abstract: 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: GrantFiled: December 8, 2022Date of Patent: January 21, 2025Assignees: 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
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Patent number: 12200964Abstract: 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: GrantFiled: October 28, 2021Date of Patent: January 14, 2025Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventor: Shucheng Ge
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Patent number: 12167627Abstract: 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: GrantFiled: April 24, 2023Date of Patent: December 10, 2024Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventor: Sitao Huo
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Publication number: 20240397759Abstract: 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: ApplicationFiled: April 21, 2022Publication date: November 28, 2024Applicant: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Lei WANG, Hao DAI, Meihong WANG, Yangzhao MA
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Patent number: 12147104Abstract: 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: GrantFiled: April 17, 2024Date of Patent: November 19, 2024Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Noboru Okuzono, Hitoshi Hiratsuka, Katsuhiro Ito
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Patent number: 12144220Abstract: 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: GrantFiled: March 20, 2023Date of Patent: November 12, 2024Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCHInventors: Yu Xin, Kang Yang, Lijing Han, Xian Chen
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Patent number: 12134615Abstract: 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: GrantFiled: January 12, 2021Date of Patent: November 5, 2024Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Wei Gao, Lu Zhai, Lei Zhang, Quan Ran, Wenpeng Dai, Yuyang Guo, Xia Li
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Patent number: 12133413Abstract: 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: GrantFiled: April 24, 2023Date of Patent: October 29, 2024Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventor: Sitao Huo
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Patent number: 12112706Abstract: 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: GrantFiled: April 28, 2023Date of Patent: October 8, 2024Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Jiro Yanase, Yojiro Matsueda