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公开(公告)号：US12223867B2
公开(公告)日：2025-02-11
申请号：US18299514
申请日：2023-04-12
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Yimiao Ding , Lihua Wang , Zhenhai Yin , Tingting Li , Peng Gui , Zhicheng Wu , Qiongqin Mao
Abstract: A display panel, a motherboard, and a mini LED display device. The display panel includes: a panel edge extending along a first direction, and a display region and a test region. The test region is between the display region and the panel edge and includes test pads. At least two test pads are arranged along the first direction, adjacent ones of which are spaced by at least two first electrostatic discharge protection wires extending from one side of the display region adjacent to the test region to the panel edge. Each first electrostatic discharge protection wire includes a first line segment located between two adjacent test pads and a second line segment adjacent to the panel edge. A distance between adjacent first line segments between two adjacent test pads in the first direction is less than a distance between adjacent second line segments in the first direction.
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公开(公告)号：US11411151B2
公开(公告)日：2022-08-09
申请号：US17092336
申请日：2020-11-09
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Xiaoping Sun , Lihua Wang , Conghua Ma , Liwen Lu
Abstract: A light emitting panel and a display device are provided. The light emitting panel includes a carrier substrate, and multiple connection electrodes, multiple first electrode leads and multiple second electrode leads that are arranged on the carrier substrate. Each connection electrode includes a first sub-connection electrode and a second sub-connection electrode isolated from each other. The connection electrodes are divided into a first connection electrode group to an N-th connection electrode group. An i-th connection electrode group includes connection electrodes. N is an integer greater than or equal to 2, and i is a positive integer less than or equal to N. First sub-connection electrodes in the i-th connection electrode group are electrically connected with a same first electrode lead, and second sub-connection electrodes in the i-th connection electrode group are respectively connected with different second electrode leads.
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公开(公告)号：US11348542B2
公开(公告)日：2022-05-31
申请号：US16944095
申请日：2020-07-30
Applicant: Shanghai Tianma Micro-Electronics Co.,Ltd.
Inventor： Conghua Ma , Lihua Wang , Xiaoping Sun , Qiang Dong
Abstract: Provided is a driving method for a display device. The driving method includes: obtaining, by the driving chip, a theoretical brightness value of the light-emitting diode in each of the plurality of light-exiting sub-areas based on an image to be displayed on the display panel; obtaining an actual brightness look-up table, searching the actual brightness look-up table for an actual brightness value closest to the theoretical brightness value, and setting the actual brightness value closest to the theoretical brightness value as a first brightness value; and generating a first pulse signal based on the first brightness value and outputting the first pulse signal to the switch in each of the plurality of light-exiting sub-areas, in such a manner that the switch controls, under driving of the first pulse signal, the light-emitting diode to emit light under an action of a first power supply signal and a second power supply signal.
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公开(公告)号：US11263938B1
公开(公告)日：2022-03-01
申请号：US17103273
申请日：2020-11-24
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Qiang Dong , Lihua Wang , Xiaoping Sun , Conghua Ma
Abstract: A light-emitting panel and a display device are provided. The light-emitting panel includes a plurality of light-emitting components arranged in an array, a plurality of signal calculation modules, and a reference-signal generation module. A light-emitting component includes a light-emitting module and a first switch module. The light-emitting module and the first switch module are connected in series between a first power terminal and a second power terminal. A control terminal of the first switch module is connected to a signal calculation module, and the signal calculation module is connected to the reference-signal generation module. The reference-signal generation module is configured to generate a reference signal. The signal calculation module is configured to receive an original data signal and the reference signal, and generate a first data signal. The signal calculation module is further configured to generate a pulse width modulation signal, and to control the light-emitting module to emit light.
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15.发明授权公开(公告)号：US11244603B1
公开(公告)日：2022-02-08
申请号：US17103079
申请日：2020-11-24
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Lihua Wang , Xiaoping Sun , Conghua Ma , Qiang Dong
Abstract: Light-emitting panel, driving method, fabricating method, and display device are provided. The light-emitting panel includes a plurality of light-emitting units arranged in an array. Each light-emitting unit includes a light-emission control module and at least one light-emitting element. The at least one light-emitting element is electrically connected to the light-emission control module. The light-emitting panel also includes a plurality of data lines arranged in a first direction. Each data line is electrically connected to light-emission control modules of light-emitting units that are arranged in a second direction. The second direction intersects the first direction. The light-emitting panel also includes a plurality of scan lines arranged in the second direction. Each scan line of the plurality of scan lines is electrically connected to light-emission control modules of light-emitting units that are arranged in the first direction. The light-emitting panel also includes a first power line and a second power line.
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Patent Agency Ranking
公开(公告)号：US10896315B2
公开(公告)日：2021-01-19
申请号：US15952429
申请日：2018-04-13
Applicant: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
Inventor： Yang Zeng , Lihua Wang , Haochi Yu , Liang Xie
IPC: G06K9/00
Abstract: A display apparatus and a fingerprint identification method are provided. An exemplary display apparatus includes a display region including a fingerprint identification region; a plurality of fingerprint identification pixels disposed in the fingerprint identification region and configured to provide a fingerprint identification light; a fingerprint identification array including fingerprint sensing units disposed in the fingerprint identification region and configured to receive the fingerprint identification light after being reflected by a touching body; and a controller electrically connected to the fingerprint sensing units and configured to obtain a whole image of a to-be-identified fingerprint, determine position coordinates of characteristic points on the display apparatus according to the whole image, control a first number of the fingerprint identification pixels to emit light according to the position coordinates to obtain local images at characteristic points of the to-be-identified fingerprint, and identify the to-be-identified fingerprint according to the local images.
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公开(公告)号：US10394374B2
公开(公告)日：2019-08-27
申请号：US15791056
申请日：2017-10-23
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Yang Zeng , Lingxiao Du , Xingyao Zhou , Lihua Wang , Qijun Yao , Kang Yang , Hong Ding
Abstract: A touch control display panel and a touch control display device are provided. The touch control display panel comprises a substrate including a display region and a non-display region; an organic light-emitting structure; a thin film encapsulation layer having a first side facing the substrate; a first retaining wall; first and second touch control electrodes; first and second touch control lines disposed in the non-display region; and conductive leads disposed on the first side of the thin film encapsulation layer. At least one first touch control line steps across the first retaining wall to be electrically connected to a corresponding conductive lead, and further electrically connected to a driving chip or a flexible printed circuit disposed in a first non-display region through the corresponding conductive lead. A connection region of the at least one first touch control line and the corresponding conductive lead is arranged outside the first retaining wall.
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公开(公告)号：US20180226454A1
公开(公告)日：2018-08-09
申请号：US15660604
申请日：2017-07-26
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Conghui Liu , Heeyol Lee , Lihua Wang , Yu Cai , Quanpeng Yu , Yang Zeng , Xingyao Zhou
CPC classification number: H01L27/323 , G06F3/0412 , G06F3/0416 , G06F3/044 , G06F2203/04102 , H01L27/3246 , H01L27/3258 , H01L27/3262 , H01L51/5253 , H01L2251/5338
Abstract: A touch display panel is provided. The touch display panel includes: a substrate; a thin-film transistor array, an organic light-emitting unit and a thin-film encapsulation layer which are successively laminated on the substrate; and a touch electrode arranged at a side, which is facing away from the organic light-emitting unit, of the thin-film encapsulation layer. The touch display panel includes a display area and a non-display area surrounding the display area. The non-display area has a first dam surrounding the display area and a second dam surrounding the first dam; the non-display area includes a bonding area and border areas disposed at two sides of the bonding area; and at least in the bonding area, organic material fills a region between the first dam and the second dam and fills a region at a side close to the display area of the first dam.
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19.发明授权公开(公告)号：US09785271B2
公开(公告)日：2017-10-10
申请号：US15147867
申请日：2016-05-05
Inventor： Lihua Wang , Conghua Ma , Qijun Yao
CPC classification number: G06F3/0412 , G06F3/044 , G06F2203/04111 , G09G3/2096 , G09G3/3677 , G09G2300/0408 , G09G2300/0426 , G09G2310/0286 , G09G2310/08
Abstract: A gate drive circuit, includes a driving transistor and a switching transistor. A gate electrode of the switching transistor is configured to receive first switching signal. A first electrode of the switching transistor is configured to receive second switching signal. A second electrode of the switching transistor is connected to gate electrode of the driving transistor. A first electrode of driving transistor is configured to receive first control signal, and a second electrode of driving transistor is connected to output terminal. During display period, the first control signal is display scanning signal, the first switching signal switches the switching transistor off, the driving transistor is switched on and the driving transistor outputs the display scanning signal. During touch-control period, the first control signal is touch scanning signal, the first switching signal switches the switching transistor on, the second switching signal switches the driving transistor on, and the driving transistor outputs the touch scanning signal.
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公开(公告)号：US20170115781A1
公开(公告)日：2017-04-27
申请号：US15398717
申请日：2017-01-05
Inventor： Yang Zeng , Xingyao Zhou , Lihua Wang , Liang Liu
CPC classification number: G06F3/045 , G06F3/0412 , G06F3/0414 , G06F3/0416 , G06F2203/04105 , G06F2203/04111 , H01L27/3213 , H01L27/3225 , H01L27/323 , H01L27/3244 , H01L27/3276
Abstract: An OLED array substrate is provided. The OLED array includes multiple sub-pixels defined by multiple data lines and multiple scan lines, and a resistance-type pressure sensing element located in non-opening regions of the sub-pixels. The pressure sensing element includes multiple resistors. Each resistor has a serpentine wire structure. The serpentine wire structure includes a first sub-wire and a second sub-wire connected to two adjacent first sub-wires. Both the first sub-wire and the second sub-wire are located in non-opening regions of the sub-pixels on the OLED array substrate. The resistance-type pressure sensing element is arranged in a display region of the OLED array substrate without influencing the display effect of a display panel or a display device. An extension direction of a projection of the first sub-wire on an array substrate intersects with extension directions of projections of the data lines and the scan lines on the array substrate.
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