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公开(公告)号：US20240268009A1
公开(公告)日：2024-08-08
申请号：US18014572
申请日：2021-12-27
发明人： Yifan SONG , Zhaohui MENG , Wenchao HAN , Wei SUN
IPC分类号： H05B47/11
CPC分类号： H05B47/11
摘要： In the backlight control circuit; a luminous flux sensing sub-circuit senses luminous flux of a display device, obtains and outputs a first control signal from a first control signal output terminal; a control sub-circuit includes N control units each including a first/second sub-unit; the first sub-unit connects or disconnects an output terminal of the second sub-unit and the backlight control signal output terminal under the control of the first control signal, the second sub-unit connects or disconnects a signal input terminal and the output terminal of the second sub-unit under the control of the second control signal; the N second control signal output terminals provide effective second control signals in a time division manner; conduction thresholds corresponding to the N first sub-units increase sequentially, and when a corresponding relationship between the first control signal and the conduction threshold is met, the first transistor is turned on.
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公开(公告)号：US20240230403A1
公开(公告)日：2024-07-11
申请号：US17925214
申请日：2021-12-27
发明人： Yifan SONG , Wenchao HAN , Zhaohui MENG , Wei SUN
IPC分类号： G01J1/44 , G01R31/265 , G01J1/42
CPC分类号： G01J1/44 , G01R31/2656 , G01J2001/4247 , G01J2001/4473
摘要： The present disclosure provides a luminous flux test circuitry, a test method and a display panel. The luminous flux test circuitry includes two test sub-circuitries, a control sub-circuitry and a light-shielding pattern. Each test sub-circuitry includes N photosensitive transistors; an output end of each photosensitive transistor in a first test sub-circuitry is coupled to a first input end of the control sub-circuitry; an output end of each photosensitive transistor in a second test sub-circuitry is coupled to a second input end of the control sub-circuitry; the light-shielding pattern covers the photosensitive transistors in the second test sub-circuitry; at a sampling stage, the photosensitive transistors in each test sub-circuitry are in a reverse bias state; and the control sub-circuitry is configured to determine a luminous flux detected by the photosensitive transistors in the first test sub-circuitry in accordance with a leakage current generated by the photosensitive transistors in each test sub-circuitry.
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公开(公告)号：US20240212550A1
公开(公告)日：2024-06-27
申请号：US18590339
申请日：2024-02-28
发明人： Zhaohui MENG , Wei SUN , Wenchao HAN , Hong YANG , Lin CONG , Wenjun XIAO
IPC分类号： G09G3/20
CPC分类号： G09G3/20 , G09G2310/0254 , G09G2310/0267 , G09G2310/0275 , G09G2310/0286 , G09G2310/08 , G09G2320/02
摘要： A display panel, a display device and a driving method. The display panel includes a display region and a peripheral region. The display region includes a subpixel unit array having a plurality of rows and a plurality of columns of subpixel units, and the peripheral region includes a gate drive circuit. The display region further includes a plurality of gate lines and a plurality of data lines. The gate drive circuit comprises a plurality of shift register units, and the plurality of gate lines are electrically connected with the plurality of shift register units. The gate drive circuit comprises two shift-register-unit scanning groups, in the shift-register-unit scanning groups, a (k+1)th shift register unit and a (k)th shift register unit form one shift register unit group.
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公开(公告)号：US20230068347A1
公开(公告)日：2023-03-02
申请号：US17790089
申请日：2021-05-24
发明人： Zhaohui MENG , Jing LIU , Wei SUN , Li TIAN
摘要： A virtual surround sound production circuit includes: a subtraction unit configured to perform subtraction operation on first and second signals to output a third signal; a first addition unit configured to perform addition operation on the first and second signals to output a center channel signal; a surround sound adjustment unit configured to adjust the third signal or another third signal that has undergone frequency compensation to output a fourth signal; a center compensation unit configured to adjust the center channel signal to output a fifth signal; a second addition unit configured to perform addition operation on the first, fourth and fifth signals to output a first output signal; a phase inverter unit configured to perform phase inversion on the fourth signal to generate a phase-inverted signal; and a third addition unit configured to perform addition operation on the second, fifth and phase-inverted signals to output a second output signal.
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公开(公告)号：US20220066591A1
公开(公告)日：2022-03-03
申请号：US17324259
申请日：2021-05-19
发明人： Zhaohui MENG , Wei SUN , Lin CONG
IPC分类号： G06F3/041
摘要： A touch detection method includes: scanning a reference scan region according to a first control protocol to collect initial touch signals including an initial trigger signal; determining position information of a starting point according to the initial touch signals; reporting the position information of the starting point; switching the first control protocol to a second control protocol; and performing following operations at least once: determining a current target scan region, scanning the current target scan region according to the second control protocol to collect current touch signals including a current trigger signal, determining position information of a touch point according to the current touch signals, and reporting the position information of the touch point. An area of the current target scan region is less than an area of the reference scan region.
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公开(公告)号：US20230260442A1
公开(公告)日：2023-08-17
申请号：US18137010
申请日：2023-04-20
发明人： Zhaohui MENG , Wei SUN , Wenchao HAN , Hong YANG , Lin CONG , Wenjun XIAO
IPC分类号： G09G3/20
CPC分类号： G09G3/20 , G09G2310/0254 , G09G2310/0267 , G09G2310/0275 , G09G2310/0286 , G09G2310/08 , G09G2320/02
摘要： A display panel, a display device and a driving method. The display panel includes a display region and a peripheral region. The display region includes a subpixel unit array having a plurality of rows and a plurality of columns of subpixel units, and the peripheral region includes a gate drive circuit. The display region further includes a plurality of gate lines and a plurality of data lines. The gate drive circuit comprises a plurality of shift register units, and the plurality of gate lines are electrically connected with the plurality of shift register units. The gate drive circuit comprises two shift-register-unit scanning groups, in the shift-register-unit scanning groups, a (k+1)th shift register unit and a (k)th shift register unit form one shift register unit group.
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公开(公告)号：US20220413649A1
公开(公告)日：2022-12-29
申请号：US17642813
申请日：2021-05-18
发明人： Hong YANG , Zhaohui MENG
摘要： The present disclosure provides a touch display driving module, a touch display driving method, and a display device. The touch display driving module includes a touch detection chip and a time sequence touch control chip. The time sequence touch control chip is configured to perform data calculation in accordance with a touch data signal to generate touch point coordinate information, generate touch point image information in accordance with the touch point coordinate information, and display the touch point image on a display screen in accordance with the touch point image information. The touch point coordinate information is information carrying coordinates of a touch point, the touch point image is an image showing that the touch point is touched, and the touch point image information is display information corresponding to the touch point image.
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公开(公告)号：US20200226986A1
公开(公告)日：2020-07-16
申请号：US16615476
申请日：2017-11-21
发明人： Zhaohui MENG , Hao ZHANG , Dong CHEN
摘要： A backlight driving method and device of a display panel, and a display panel are provided. The backlight driving method of a display panel includes generating a synchronous drive frame and performing black frame insertion control according to a synchronous drive frame, the synchronous drive frame includes a first time region and a second time region, in the synchronous drive frame, a PWM light-adjusting signal is not output in the first time region and the PWM light-adjusting signal is output in the second time region, the first time region corresponds to line scan time, and the second time region corresponds to liquid crystal stabilization time.
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公开(公告)号：US20240306460A1
公开(公告)日：2024-09-12
申请号：US17772477
申请日：2021-07-27
发明人： Zhaohui MENG
IPC分类号： H10K59/35 , G09G3/20 , G09G3/3208
CPC分类号： H10K59/353 , G09G3/2074 , G09G3/3208 , G09G2300/0413 , G09G2300/0452 , G09G2320/0233 , H10K59/351 , H10K59/352
摘要： The present disclosure provides a display panel, a display device and a display driving method. The display panel includes a first display region and a second display region each including a plurality of pixel repeat units. Each pixel repeat unit includes a first sub-pixel in a first color, a second sub-pixel in a second color, a third sub-pixel in a third color and a fourth sub-pixel in the first color. A light-emitting area of each of the first sub-pixel and the fourth sub-pixel is smaller than that of the second sub-pixel or the third sub-pixel. A dummy pixel space is formed in a second pixel row between a first pixel repeat unit in a first pixel row and a second pixel repeat unit in a third pixel row in three adjacent pixel rows at the second display region.
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公开(公告)号：US20240169947A1
公开(公告)日：2024-05-23
申请号：US17778865
申请日：2021-06-23
发明人： Zhengri LIN , Wenchao HAN , Xinle WANG , Yifan SONG , Wanzhi CHEN , Jing LIU , Wei SUN , Rui LIU , Xin DUAN , Zhaohui MENG , Mingming WANG , Lianghao ZHANG , Jiantao LIU
IPC分类号： G09G3/36 , G02F1/133 , G02F1/1362 , H01L27/144
CPC分类号： G09G3/3607 , G02F1/13318 , G02F1/136204 , H01L27/1443 , G09G2320/0233 , G09G2320/0242 , G09G2360/144
摘要： A display substrate includes a base substrate, a plurality of photosensitive transistor units, a plurality of photosensitive ESD protection units, and at least one common signal line. The base substrate includes a display region, a peripheral region located at a periphery of the display region, and a binding region located at a side of the display region. The plurality of photosensitive transistor units, the plurality of photosensitive ESD protection units and the at least one common signal line are located in the peripheral region. The plurality of photosensitive transistor units is connected with binding pins in the binding region through a plurality of signal lines. At least one photosensitive ESD protection unit is connected with, and located between, at least one signal line and the common signal line.
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