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91. 发明授权

US10818236B2 Display device, display substrate, method and device for display compensation 有权
公开(公告)号：US10818236B2
公开(公告)日：2020-10-27
申请号：US16118192
申请日：2018-08-30
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Cuili Gai , Baoxia Zhang , Ling Wang , Pan Xu , Yicheng Lin
IPC分类号： G09G3/3258 , G09G3/3233
摘要： The present disclosure relates to a display device, a display substrate, a method and a device for display compensation. The method includes: before displaying an image, performing initial compensation on each of the pixel circuits to obtain an average reference voltage of the plurality of pixel circuits; controlling the display substrate to display an image and performing external compensation on each of the pixel circuits during a display duration of one frame of the image, obtaining a charging voltage on the sensing line of each of the pixel circuits during the external compensation, obtaining a first reference voltage of each of the pixel circuits according to the charging voltage on the sensing line and the average reference voltage, and performing internal compensation on each of the pixel circuits according to the first reference voltage.

92. 发明授权

US10818207B2 Circuitry and method for detecting failed pixel and display device 有权
公开(公告)号：US10818207B2
公开(公告)日：2020-10-27
申请号：US16086675
申请日：2018-03-02
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Yongqian Li , Pan Xu , Quanhu Li
IPC分类号： G09G3/00 , G09G3/30
摘要： A circuitry and a method for detecting a failed pixel, and a display device are provided. The circuitry for detecting the failed pixel includes a display control circuit and a failed pixel detection circuit. The display control circuit is connected to a pixel driving circuit, and configured to control, at detection voltage write-in stage and failed pixel detection stage, the pixel driving circuit to cause light-emitting element not to emit light. The failed pixel detection circuit is connected to first electrode of the light-emitting element via failure sense line, and configured to apply a reference voltage to the first electrode of the light-emitting element via the failure sense line at the detection voltage write-in stage, detect a potential at the first electrode of the light-emitting element at the failed pixel detection stage, and determine, in accordance with the potential, whether the pixel circuit is failed.

93. 发明授权

US10803803B2 Organic light emitting diode pixel compensation method, organic light emitting diode pixel compensation device and display device 有权
公开(公告)号：US10803803B2
公开(公告)日：2020-10-13
申请号：US15869625
申请日：2018-01-12
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Pan Xu
IPC分类号： G09G3/3258 , H01L51/52 , G09G3/3233 , H01L51/00 , G09G3/00
摘要： An organic light emitting diode pixel compensation method, an organic light emitting diode pixel compensation device and a display device are provided. The organic light emitting diode pixel compensation method includes: testing drive transistors of sub-pixels in an Nth row to obtain first test information; testing drive transistors of sub-pixels in an Mth row to obtain second test information; calculating a compensation parameter based on the first test information and the second test information; and compensating the sub-pixels in the Nth row, the sub-pixels in the Mth row and the sub-pixels in a rows adjacent to the Nth row and the Mth row based on the compensation parameter, where N=an+b, M=an+c, a≥2, 0≤b

94. 发明授权

US10762844B2 Pixel driving circuit and method for driving the same, display panel and compensation 有权
公开(公告)号：US10762844B2
公开(公告)日：2020-09-01
申请号：US16096796
申请日：2018-01-17
申请人： BOE Technology Group Co., Ltd.
发明人： Yongqian Li , Pan Xu , Quanhu Li
IPC分类号： G09G5/00 , G09G3/3258
摘要： The present application provides a pixel driving circuit, including a driving sub-circuit, a compensation sub-circuit, a first switching sub-circuit, and a second switching sub-circuit. The driving sub-circuit has a control terminal electrically connected to a first terminal of the second switching sub-circuit, a first terminal electrically connected to a light-emitting element, and a second terminal electrically connected to a power source; the compensation sub-circuit has a first terminal electrically connected to the first terminal of the driving sub-circuit, and a second terminal electrically connected to the control terminal of the driving sub-circuit; the first switching sub-circuit has a control terminal electrically connected to a first signal input terminal, a first terminal electrically connected to the first terminal of the driving sub-circuit, and a second terminal electrically connected to an initial voltage input terminal; and the second switching sub-circuit has a control terminal electrically connected to a second signal input terminal, a first terminal electrically connected to the control terminal of the driving sub-circuit, and a second terminal electrically connected to a data signal input terminal.

95. 发明授权

US10699643B2 Pixel driving compensation circuit, driving compensation method therefor and display device 有权
公开(公告)号：US10699643B2
公开(公告)日：2020-06-30
申请号：US16334114
申请日：2018-01-04
申请人： Hefei Xinsheng Optoelectronics Technology Co., Ltd. , BOE TECHNOLOGY GROUP CO., LTD.
发明人： Can Yuan , Zhidong Yuan , Yongqian Li , Pan Xu , Wenchao Bao , Min He
IPC分类号： G09G3/3233 , G09G3/3258 , G09G3/3275
摘要： The present disclosure relates to a pixel driving compensation circuit. The pixel driving compensation circuit can detect and compensate a driving current of a sub-pixel in a pixel unit. The pixel unit includes first, second, and third sub-pixels and the first to third sub-pixels respectively include first, second, and third driving transistors. The pixel driving compensation circuit includes a first switching sub-circuit configured to be turned on in a first period to transmit a driving current output from the first driving transistor to a first detection line, second switching sub-circuit configured to be turned on in a second period to transmit a driving current output from the second driving transistor to a first detection line, and a third switching sub-circuit configured to be turned on in the first period to transmit a driving current output from the third driving transistor to a second detection line.

96. 发明授权

US10553154B2 Method and apparatus for detecting driving circuit 有权
公开(公告)号：US10553154B2
公开(公告)日：2020-02-04
申请号：US15744381
申请日：2017-06-30
申请人： BOE Technology Group Co., Ltd.
发明人： Yongqian Li , Pan Xu , Zhidong Yuan
IPC分类号： G09G3/3233 , G09G3/00 , G09G3/3266
摘要： A method and an apparatus for detecting a driving circuit. The method includes: inputting a data signal, a gate line scanning signal, a voltage signal, and a first control signal with a first voltage level into a data input end, a gate scanning input end, a power source end and a voltage sensing end of the driving circuit, respectively; by inputting a second control signal with a second voltage level into a sensing-scanning input end, controlling a pixel storage capacitor to be charged, and measuring a first voltage of an OLED anode end; by inputting the second control signal with a third voltage level to the sensing-scanning input end, controlling the pixel storage capacitor to be discharged, and measuring a second voltage of the OLED anode end; and determining whether the driving circuit has abnormity or not according to the first voltage and the second voltage.

97. 发明申请

US20190371245A1 PIXEL DRIVING COMPENSATION CIRCUIT, DRIVING COMPENSATION METHOD THEREFOR AND DISPLAY DEVICE 审中-公开
公开(公告)号：US20190371245A1
公开(公告)日：2019-12-05
申请号：US16334114
申请日：2018-01-04
申请人： Hefei Xinsheng Optoelectronics Technology Co., Ltd , BOE TECHNOLOGY GROUP CO., LTD.
发明人： Can Yuan , Zhidong Yuan , Yongqian Li , Pan Xu , Wenchao Bao , Min He
IPC分类号： G09G3/3258 , G09G3/3233 , G09G3/3275
摘要： The present disclosure relates to a pixel driving compensation circuit. The pixel driving compensation circuit can detect and compensate a driving current of a sub-pixel in a pixel unit. The pixel unit includes first, second, and third sub-pixels and the first to third sub-pixels respectively include first, second, and third driving transistors. The pixel driving compensation circuit includes a first switching sub-circuit configured to be turned on in a first period to transmit a driving current output from the first driving transistor to a first detection line, second switching sub-circuit configured to be turned on in a second period to transmit a driving current output from the second driving transistor to a first detection line, and a third switching sub-circuit configured to be turned on in the first period to transmit a driving current output from the third driving transistor to a second detection line.

98. 发明申请

US20180374405A1 Method and Apparatus for Detecting Driving Circuit 审中-公开
公开(公告)号：US20180374405A1
公开(公告)日：2018-12-27
申请号：US15744381
申请日：2017-06-30
申请人： BOE Technology Group Co., Ltd.
发明人： Yongqian Li , Pan Xu , Zhidong Yuan
IPC分类号： G09G3/00 , G09G3/3266
摘要： A method and an apparatus for detecting a driving circuit. The method includes: inputting a data signal, a gate line scanning signal, a voltage signal, and a first control signal with a first voltage level into a data input end, a gate scanning input end, a power source end and a voltage sensing end of the driving circuit, respectively; by inputting a second control signal with a second voltage level into a sensing-scanning input end, controlling a pixel storage capacitor to be charged, and measuring a first voltage of an OLED anode end; by inputting the second control signal with a third voltage level to the sensing-scanning input end, controlling the pixel storage capacitor to be discharged, and measuring a second voltage of the OLED anode end; and determining whether the driving circuit has abnormity or not according to the first voltage and the second voltage.

99. 发明授权

US12133428B2 Display substrate and display device 有权
公开(公告)号：US12133428B2
公开(公告)日：2024-10-29
申请号：US17753513
申请日：2021-03-25
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Xing Zhang , Zhan Gao , Yicheng Lin , Pan Xu , Ying Han , Guoying Wang , Dacheng Zhang
IPC分类号： H01L35/24 , H01L51/00 , H10K59/126 , H10K59/131 , H10K59/38 , H10K59/80
CPC分类号： H10K59/126 , H10K59/131 , H10K59/38 , H10K59/87
摘要： A display substrate and a display device are provided. The display substrate includes a base substrate and a light-shielding layer. The base substrate includes a display region including repeating units, each repeating unit includes a transparent region and a pixel region, the pixel region includes sub-pixels, each sub-pixel includes a sub-pixel driving circuit and a light-emitting element, and the light-emitting element includes a first electrode, a second electrode, and a light-emitting layer located between the first electrode and the second electrode. The light-shielding layer is located on a side of the sub-pixel driving circuit close to the base substrate, at least part of an orthographic projection of the light-shielding layer on a main surface of the base substrate overlaps with an orthographic projection of the sub-pixel driving circuit on the main surface of the base substrate, and the light-shielding layer is connected with the second electrode.

100. 发明公开

US20240194688A1 ARRAY SUBSTRATE, DISPLAY APPARATUS, AND CONNECTION PAD 审中-公开
公开(公告)号：US20240194688A1
公开(公告)日：2024-06-13
申请号：US17904748
申请日：2021-10-18
申请人： BOE Technology Group Co., Ltd.
发明人： Guoying Wang , Pan Xu , Dacheng Zhang , Xing Zhang , Ying Han , Chengyuan Luo , Zhen Song
IPC分类号： H01L27/12
CPC分类号： H01L27/124 , H01L27/1248
摘要： An array substrate having a connection pad in a connection pad area is provided. The connection pad includes a plurality of first probe contact pads, a plurality of second probe contact pads, a plurality of first connection lines coupled to the plurality of first probe contact pads, respectively, and a plurality of second connection lines coupled to the plurality of second probe contact pads, respectively; the plurality of first connection lines and the plurality of second connection lines being in two different layers. A total number of conductive layers electrically connected to a respective first connection line of the plurality of first connection lines is different from a total number of conductive layers electrically connected to a respective second connection line of the plurality of second connection lines.

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