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公开(公告)号：US20220140050A1
公开(公告)日：2022-05-05
申请号：US17259465
申请日：2020-03-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Li LIU , Pengcheng LU , Rongrong SHI , Yuanlan TIAN , Xiao BAI , Dacheng ZHANG
Abstract: Provided is display substrate, including driving circuit board, and first electrode layer, insulating layer, second electrode layer, isolation layer, transparent conductive layer sequentially stacked thereon. Driving circuit board includes pixel and bonding regions. First electrode layer includes first sub-portion in bonding region and second sub-portion in pixel region. Insulating and isolation layers are partially cover bonding and pixel regions. Insulating layer has first via hole in area corresponding to first sub-portion. Isolation layer has second via hole in the area. Axes of first and second via holes coincide, first sub-portion is exposed at first and second via holes. Second electrode layer is in pixel region, coupled to second sub-portion through third via hole in area corresponding to second sub-portion. Isolation layer has fourth via hole in area corresponding to second electrode layer. Transparent conductive layer is in pixel region, coupled to second electrode layer through fourth via hole.
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公开(公告)号：US20220139329A1
公开(公告)日：2022-05-05
申请号：US17258892
申请日：2020-03-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiao BAI , Shengji YANG , Pengcheng LU
IPC: G09G3/3275
Abstract: The present disclosure relates to a display panel and a driving method thereof. The display panel includes a source driving circuit and a pixel driving circuit. The source driving circuit includes a DAC power amplifier, and a switch unit. The DAC is configured to convert a digital data signal into an analog data signal; the power amplifier is configured to receive the analog data signal and improve a driving capability of the analog data signal; the switch unit is connected to the DAC, the power amplifier, and a control signal terminal, and is configured to connect the DAC to the power amplifier in response to a signal of the control signal terminal. The pixel driving circuit includes a data signal terminal; an output terminal of the power amplifier is connected to the data signal terminal, and is configured to input the analog data signal with improved driving capability to the data signal terminal.
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公开(公告)号：US20220115484A1
公开(公告)日：2022-04-14
申请号：US17266625
申请日：2020-03-27
Applicant: BOE Technology Group Co., Ltd.
Inventor： Pengcheng LU , Shengji YANG , Kuanta HUANG , Xiaochuan CHEN , Yage SONG , Yanming WANG , Hui WANG , Dongdong DUAN , Jiantong LI , Xiao BAI , Yunlong LI , Shuai TIAN , Zhijian ZHU , Yu AO , Junbo WEI , Chao PU , Yuanlan TIAN
IPC: H01L27/32
Abstract: Provided are a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a silicon-based substrate and an array structure layer arranged on the silicon-based substrate; a driving transistor and a first power line being arranged in the silicon-based substrate in the display area, a light emitting element being disposed on the array structure layer in the display area, a first electrode of the driving transistor being connected with the first power line, and a second electrode of the driving transistor being connected with an anode of the light emitting element; a power supply electrode and a second power line being arranged in the silicon-based substrate in the peripheral area, the power supply electrode being connected with the second power line.
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公开(公告)号：US20210407411A1
公开(公告)日：2021-12-30
申请号：US16959490
申请日：2019-08-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Shengji YANG , Xiaochuan CHEN , Hui WANG , Kuanta HUANG , Pengcheng LU
IPC: G09G3/3233 , G01K3/10
Abstract: A temperature compensation method for a display panel, a display panel, and an electronic device are disclosed. The display panel includes a pixel unit, and the pixel unit includes a first voltage terminal and a second voltage terminal. The first voltage terminal is configured to receive a first power supply voltage, and the second voltage terminal is configured to receive a second power supply voltage. The temperature compensation method for the display panel includes: setting a voltage difference between the second power supply voltage and the first power supply voltage as a first voltage difference, so as to enable a temperature of the display panel to rise, and setting the voltage difference between the second power supply voltage and the first power supply voltage as a second voltage difference after the temperature of the display panel rises. The first voltage difference is greater than the second voltage difference.
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公开(公告)号：US20210358414A1
公开(公告)日：2021-11-18
申请号：US16489750
申请日：2018-12-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Shengji YANG , Xue DONG , Xiaochuan CHEN , Hui WANG , Pengcheng LU
IPC: G09G3/3258
Abstract: A pixel circuit includes a light-emitting element, a data write-in sub-circuit, a driving sub-circuit, a storage sub-circuit, a light-emission control sub-circuit, and a step-down sub-circuit. The step-down sub-circuit is configured to, at a charging compensation stage, step down a data voltage to acquire a first step-down voltage, and output the first step-down voltage via a control node. The storage sub-circuit is configured to, at the charging compensation stage, charge or discharge the control node to enable a potential at the control node to be the first step-down voltage, and at a light-emitting stage, maintain the potential at the control node as the first step-down voltage. The driving sub-circuit is configured to, at the light-emitting stage, enable a first end of the driving sub-circuit to be electrically connected to a first electrode of the light-emitting element under the control of the control node, to drive the light-emitting element to emit light.
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Patent Agency Ranking
公开(公告)号：US20210334506A1
公开(公告)日：2021-10-28
申请号：US16316448
申请日：2018-04-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Jian GAO , Xiaochuan CHEN , Yafeng YANG , Pengcheng LU
Abstract: An optical fingerprint recognition device and a display device are disclosed. The optical fingerprint recognition device includes: a light source; a light guide plate including two light guide surfaces parallel to each other; a first volume grating, a second volume grating, respectively provided on one of the two light guide surfaces; and a light detector. The light detector is provided at a side of the light guide plate away from the second volume grating and configured to detect intensity distribution of the light exported by the second volume grating. The first volume grating is configured to import light emitted by the light source the light guide plate. The light guide plate is configured to perform total reflection to the light imported into the light guide plate. The second volume grating is configured to export light propagated in the light guide plate.
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公开(公告)号：US20210333969A1
公开(公告)日：2021-10-28
申请号：US16496236
申请日：2019-04-22
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Detao ZHAO , Pengcheng LU , Liang CHEN , Ning CONG , Ming YANG , Dongni LIU , Li XIAO , Shengji YANG , Lei WANG , Minghua XUAN , Xiaochuan CHEN
Abstract: A touch display panel and a method for manufacturing the same are provided. The method includes: forming touch lines, an insulating layer and first electrodes above a substrate, the insulating layer covers the touch lines and is provided with at least one through-hole, the first electrodes are at a side of the insulating layer distal from the touch lines; forming barrier walls in each through-hole, and at a predetermined position in an interval between the first electrodes; forming a light emitting layer and a second electrode layer at a side of the light emitting layer distal from the substrate; removing the barrier walls, portions of the light emitting layer and the second electrode layer above the barrier walls, remaining portions of the second electrode layer form touch electrodes; forming an electrical conductive structure in each through-hole for coupling one touch line to one touch electrode.
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公开(公告)号：US20210211628A1
公开(公告)日：2021-07-08
申请号：US15778375
申请日：2017-09-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pengcheng LU , Xiaochuan CHEN , Shengji YANG , Lei WANG , Wenqing ZHAO , Dongni LIU , Jie FU , Han YUE , Li XIAO , Jian GAO , Haisheng WANG , Changfeng LI
IPC: H04N13/117 , H04N13/31 , H04N13/322 , H04N13/383 , G09G3/36
Abstract: The present disclosure provides a 3D display device and a working method of the same, the 3D display device includes a display panel, a lens unit, an acquiring component and an adjusting component, the acquiring component is configured to acquire current positions of eyes of a viewer, and the adjusting component is configured to adjust a signal for driving the display panel according to the current positions so that display information of the display panel received by the eyes of the viewer at the current positions is the same as display information of the display panel received by the eyes of the viewer at preset positions.
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公开(公告)号：US20210027714A1
公开(公告)日：2021-01-28
申请号：US17042575
申请日：2020-03-17
Inventor： Rongrong SHI , Shengji YANG , Kuanta HUANG , Xiaochuan CHEN , Pengcheng LU
IPC: G09G3/3258
Abstract: A pixel circuit and a driving method thereof, a display panel, and a display device. The pixel circuit includes a driving circuit, a first switching circuit, a second switching circuit, and a first reset circuit. The driving circuit is configured to drive a light-emitting element to emit light, the first switching circuit is configured to be turned on in response to a first scanning signal to transmit a data signal to a control terminal of the driving circuit, the second switching circuit is configured to be turned on in response to a light-emitting control signal to transmit a first power signal to a first terminal of the driving circuit, and the first reset circuit is configured to be turned on in response to a first reset control signal to transmit a reset signal to the first terminal of the driving circuit.
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公开(公告)号：US20190295973A1
公开(公告)日：2019-09-26
申请号：US16317658
申请日：2018-05-10
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Li XIAO , Tingting ZHOU , Xiaochuan CHEN , Shengji YANG , Dongni LIU , Lei WANG , Jie FU , Pengcheng LU , Han YUE
IPC: H01L23/00
Abstract: The present disclosure provides a display apparatus and a manufacturing method thereof. The display apparatus includes a silicon substrate, a plurality of metal data interfaces disposed on the silicon substrate, and a plurality of conductive patterns covering upper surfaces of the metal data interfaces respectively. The plurality of the conductive patterns is formed by enabling a semiconductor material to be conductive and the plurality of conductive patterns are not contacted with each other.
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