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21. 发明授权

US11087690B2 Display substrate, display device, control method and control circuit 有权
公开(公告)号：US11087690B2
公开(公告)日：2021-08-10
申请号：US16641082
申请日：2019-03-19
申请人： CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. , BOE TECHNOLOGY GROUP CO., LTD.
发明人： Xu Lu , Hengzhen Liang , Xiaolong Zhu , Lianbin Liu , Fan Li , Shihao Wang , Huan Meng , Wen Xu
IPC分类号： G09G3/3258 , G09G3/20 , G09G3/36
摘要： The present disclosure provides a display substrate, a display device, a control method and a control circuit. The display substrate includes a bending area. The bending area includes a plurality of first sub-pixels and a plurality of other sub-pixels having a light emission color different from a light emission color of the first sub-pixels. The plurality of first sub-pixels are electrically connected to a first power supply voltage terminal for providing a first power supply voltage. The other sub-pixels are electrically connected to other power supply voltage terminals different from the first power supply voltage terminal.

22. 发明授权

US11037503B2 Gate driving apparatus for pixel array and driving method therefor 有权
公开(公告)号：US11037503B2
公开(公告)日：2021-06-15
申请号：US16822475
申请日：2020-03-18
申请人： CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. , BOE TECHNOLOGY GROUP CO., LTD.
发明人： Lijun Xiao , Yihjen Hsu , Shuai Hou , Xu Lu , Fei Shang
IPC分类号： G09G3/3266 , G09G3/3258 , G09G3/3291 , G09G3/36
摘要： Disclosed are a gate driving apparatus for a pixel array and a driving method therefor. The pixel array includes N gate lines. The gate driving apparatus includes: a plurality of gate drivers, wherein the N gate lines are divided into a plurality of groups, each group includes a plurality of gate lines, each gate driver corresponds to the plurality of groups on a one-to-one basis, and is used for generating a gate driving signal for the plurality of gate lines in the group corresponding thereto; and a driver control module which is used for generating a plurality of driver control signals corresponding to the plurality of gate drivers on a one-to-one basis, and state switching between any two driver control signals has at least a difference of first time, wherein under control of the driver control signals, the gate drivers are switched from first state to second state in sequence.

23. 发明授权

US10490113B2 Voltage shift circuit and driving method thereof, driving device and display apparatus 有权
公开(公告)号：US10490113B2
公开(公告)日：2019-11-26
申请号：US16087270
申请日：2018-02-06
申请人： BOE TECHNOLOGY GROUP CO., LTD. , CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
发明人： Xianyong Gao , Shuai Hou , Lijun Xiao , Bo Xu , Siqing Fu , Xu Lu , Qiang Yu , Lisheng Liang , Shuai Chen , Fei Shang
IPC分类号： H04L5/00 , G09G3/20 , H02M3/158
CPC分类号： G09G3/20 , H02M3/158 , G09G2310/0289 , G09G2310/08 , G09G2330/021
摘要： The present application discloses a voltage shift circuit and a driving method thereof, a driving device and a display apparatus. The voltage shift circuit includes: a first input terminal, a second input terminal, a first voltage terminal, a second voltage terminal, and an output terminal. The first input terminal is configured to input a first signal. The second input terminal is configured to input a second signal. The first voltage terminal is configured to input a first voltage. The second voltage terminal is configured to input a second voltage. The output terminal is configured to output an output signal. The voltage shift circuit is configured to lower the first voltage to an output voltage within a first time using the first signal, and to raise the second voltage to the output voltage within a second time using the second signal. The first time partially overlaps with the second time.

24. 发明授权

US11410600B2 Pixel driving circuit and method, display apparatus 有权
公开(公告)号：US11410600B2
公开(公告)日：2022-08-09
申请号：US16499526
申请日：2019-02-25
申请人： CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. , BOE TECHNOLOGY GROUP CO., LTD.
发明人： Jia Sun , Xu Lu , Xianyong Gao , Fanjian Zeng
IPC分类号： G09G3/3233 , G09G3/3266 , G09G3/3275
摘要： The present disclosure relates to the field of display technology, and in particular, to a pixel driving circuit, a pixel driving method, and a display apparatus. The pixel driving circuit includes: a first input device, a second input device, a driving transistor, a compensation sub-circuit, an isolation device, a reset device, and an energy storage device. The disclosure can eliminate the influence of the threshold voltage of the driving transistor and the voltage drop of the wire due to impedance on the driving current, ensuring that the driving currents output by the pixel driving circuits are uniform, thereby ensuring the uniformity of the display brightnesses of the pixel units, and furthermore, the first pole of the light-emitting device is reset to eliminate the influence of the signal of previous frame.

25. 发明申请

US20210327381A1 A CIRCUIT FOR PROVIDING A TEMPERATURE-DEPENDENT COMMON ELECTRODE VOLTAGE 有权
公开(公告)号：US20210327381A1
公开(公告)日：2021-10-21
申请号：US16345707
申请日：2018-06-12
申请人： Chongqing BOE Optoelectronics Technology Co., Ltd. , BOE TECHNOLOGY GROUP CO., LTD.
发明人： Sijun Lei , Xu Lu , Shuai Hou , Siqing Fu , Yong Long , Ying Zhang , Shanbin Chen , Fanjian Zeng , Zhicai Xu , Sen Tan , Xinghong Liu , Xiangchao Chen , Yunsong Li , Xin Chen , Yuxu Geng
IPC分类号： G09G3/36
摘要： The present application discloses a circuit for providing a temperature-dependent common electrode voltage. The circuit includes a sensing sub-circuit coupled between a power-supply terminal and a ground terminal and configured to generate a first voltage for controlling a switching sub-circuit to connect the power-supply terminal to a first node. The circuit further includes a compensation sub-circuit coupled between the first node and the ground terminal and be enabled, when the first voltage decreases below a threshold as temperature increases above a threshold temperature, to output a temperature-dependent second voltage proportional to the temperature to a second node. Additionally, the circuit includes an output sub-circuit coupled to the second node combined with a first input-voltage terminal and further coupled to a second input-voltage terminal, to generate a temperature-dependent output voltage based on a weighted mixing of the temperature-dependent second voltage, a first input voltage, and a second input voltage.

26. 发明授权

US11094270B2 Display device and drive method therefor 有权
公开(公告)号：US11094270B2
公开(公告)日：2021-08-17
申请号：US16641717
申请日：2019-03-25
申请人： Chongqing BOE Optoelectronics Technology Co., Ltd. , BOE Technology Group Co., Ltd.
发明人： Xianyong Gao , Qiang Yu , Fanjian Zeng , Siqing Fu , Xu Lu , Liang Gao , Sijun Lei
IPC分类号： G02F1/1334 , G09G3/34 , G09G3/36
摘要： A display device and a drive method, the display device including: an edge-lit backlight module; a liquid crystal display panel positioned on the light-emergent side of the edge-lit backlight module; and a polymer liquid crystal film positioned between the liquid crystal display panel and the edge-lit backlight module, and including a plurality of closely arranged independent dimming areas, each dimming area being configured for independent control of light transmittance. The present display device takes advantage of the characteristics of the polymer liquid crystal film, loading different driving voltages in different dimming areas and changing the transmittance of the polymer liquid crystal film.

27. 发明授权

US10964286B2 Voltage providing circuit, gate driving signal providing module, gate driving signal compensation method and display panel 有权
公开(公告)号：US10964286B2
公开(公告)日：2021-03-30
申请号：US16398248
申请日：2019-04-29
申请人： CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. , BOE TECHNOLOGY GROUP CO., LTD.
发明人： Yunsong Li , Sijun Lei , Xu Lu , Liang Gao , Xianyong Gao , Shuai Hou , Yongli Ge , Yong Long , Ying Zhang , Shanbin Chen , Peng Zhang , Xiangchao Chen , Yuxu Geng , Fanjian Zeng , Zhicai Xu
IPC分类号： G09G5/00 , G09G3/36
摘要： A voltage providing circuit includes a first voltage output end, a temperature-sensitive element, a power supply circuit and an output circuit. The power supply circuit is configured to apply a control voltage signal to a control end of the temperature-sensitive element. The temperature-sensitive element is configured to, under the control of the control voltage signal, generate a temperature-related voltage, and output the temperature-related voltage via a first end of the temperature-sensitive element, and a value of the temperature-related voltage changes along with an ambient temperature of the temperature-sensitive element. The output circuit is configured to output a temperature-adaptive voltage via the first voltage output end. A difference between a value of the temperature-adaptive voltage and the value of the temperature-related voltage is within a predetermined range.

28. 发明授权

US10134353B2 Gate driving circuit, display panel and display apparatus having the same, and driving method thereof 有权
公开(公告)号：US10134353B2
公开(公告)日：2018-11-20
申请号：US15504111
申请日：2016-08-16
申请人： BOE TECHNOLOGY GROUP CO., LTD. , CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
发明人： Shuai Chen , Xu Lu , Lijun Xiao , Zhi Zhang , Daoping Yu , Keke Gu , Siqing Fu , Zhijian Qi , Wenlong Feng , Guanyu Zhou , Mengjie Wang
IPC分类号： G09G3/36 , G09G3/3266 , G02F1/133 , G02F1/1362 , G02F1/1368
摘要： The present application discloses a display panel having a plurality of gate lines and a gate driving circuit for driving the plurality of gate lines, the gate driving circuit including a plurality of first cascaded shift register units and a plurality of second cascaded shift register units for applying gate scanning signals to gate lines connected thereto. The display panel includes a first pair of first cascaded shift register unit and second cascaded shift register unit; a second pair of first cascaded shift register unit and second cascaded shift register unit; the second pair adjacent to the first pair; the first cascaded shift register unit in the first pair is electrically coupled to the second cascaded shift register unit in the second pair; and the second cascaded shift register unit in the first pair is electrically coupled to the first cascaded shift register unit in the second pair; a first group of gate lines connecting the first pair of first cascaded shift register unit and second cascaded shift register unit; and a second group of gate lines connecting the first cascaded shift register unit in the first pair and the first cascaded shift register unit in the second pair. The gate driving circuit includes a first column of cascaded shift register units and a second column of cascaded shift register units, the first column and the second column having a same number of cascaded shift register units; the first cascaded shift register unit in the first pair is an odd numbered cascaded shift register unit in the first column, the second cascaded shift register unit in the first pair is an odd numbered cascaded shift register unit in the second column, the first cascaded shift register unit in the second pair is an even numbered cascaded shift register unit in the second column, and the second cascaded shift register unit in the second pair is an even numbered cascaded shift register unit in the first column.

29. 发明申请

US20180108320A1 GATE DRIVING CIRCUIT, DISPLAY PANEL AND DISPLAY APPARATUS HAVING THE SAME, AND DRIVING METHOD THEREOF 审中-公开
公开(公告)号：US20180108320A1
公开(公告)日：2018-04-19
申请号：US15504111
申请日：2016-08-16
申请人： BOE TECHNOLOGY GROUP CO., LTD. , CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
发明人： Shuai Chen , Xu Lu , Lijun Xiao , Zhi Zhang , Daoping Yu , Keke Gu , Siqing Fu , Zhijian Qi , Wenlong Feng , Guanyu Zhou , Mengjie Wang
IPC分类号： G09G3/36 , G02F1/133 , G02F1/1362 , G02F1/1368
CPC分类号： G09G3/3688 , G02F1/13306 , G02F1/136286 , G02F1/1368 , G09G3/3266 , G09G3/3677 , G09G2310/0221 , G09G2310/0267 , G09G2310/0286 , G09G2310/08 , G09G2320/0223
摘要： The present application discloses a display panel having a plurality of gate lines and a gate driving circuit for driving the plurality of gate lines, the gate driving circuit including a plurality of first cascaded shift register units and a plurality of second cascaded shift register units for applying gate scanning signals to gate lines connected thereto. The display panel includes a first pair of first cascaded shift register unit and second cascaded shift register unit; a second pair of first cascaded shift register unit and second cascaded shift register unit; the second pair adjacent to the first pair; the first cascaded shift register unit in the first pair is electrically coupled to the second cascaded shift register unit in the second pair; and the second cascaded shift register unit in the first pair is electrically coupled to the first cascaded shift register unit in the second pair; a first group of gate lines connecting the first pair of first cascaded shift register unit and second cascaded shift register unit; and a second group of gate lines connecting the first cascaded shift register unit in the first pair and the first cascaded shift register unit in the second pair. The gate driving circuit includes a first column of cascaded shift register units and a second column of cascaded shift register units, the first column and the second column having a same number of cascaded shift register units; the first cascaded shift register unit in the first pair is an odd numbered cascaded shift register unit in the first column, the second cascaded shift register unit in the first pair is an odd numbered cascaded shift register unit in the second column, the first cascaded shift register unit in the second pair is an even numbered cascaded shift register unit in the second column, and the second cascaded shift register unit in the second pair is an even numbered cascaded shift register unit in the first column.

30. 发明授权

US10971100B2 Pixel driving circuit, display panel having the pixel driving circuit and driving method of display panel 有权
公开(公告)号：US10971100B2
公开(公告)日：2021-04-06
申请号：US16536834
申请日：2019-08-09
申请人： Chongqing BOE Optoelectronics Technology Co., Ltd. , BOE Technology Group Co., Ltd.
发明人： Ying Zhang , Sijun Lei , Xu Lu , Xianyong Gao , Shoujun Xiao , Yifan Huangfu , Zhicai Xu , Bo Ran , Yongli Ge
IPC分类号： G09G3/36 , G09G3/3266 , G09G3/3275
摘要： The present disclosure provides a driving method of a display panel, the display panel including a plurality of pixels, each row of pixels correspond to a gate line, each column of pixels correspond to a data line, the driving method including: comparing a current frame of image with a previous frame of image to determine a non-changing row of the pixels, contents displayed by each pixel in the non-changing row for the current frame of image and contents displayed by each pixel in the non-changing row for the previous frame of image are the same; selecting a non-charging row from the non-changing row according to a predetermined time; providing, when displaying the current frame of image, an invalid signal to the gate line of the non-charging row during a scanning time for the gate line of the non-charging row to not to charge the non-charging row.

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