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1.发明申请公开(公告)号：US20240420651A1
公开(公告)日：2024-12-19
申请号：US18705572
申请日：2021-12-24
Inventor： Zhaohui MENG , Zijiao XUE
Abstract: A backlight control chip, a driving method, a backlight control system, and a near-eye display device. The backlight control chip for driving a backlight module, includes: a boosting circuit, configured to receive a variable-frequency clock signal and boost the variable-frequency clock signal into a synchronous signal, wherein both the variable-frequency clock signal and the synchronous signal have the same refresh rate as variable-frequency display; and a gating circuit, configured to at least receive the synchronous signal and frame rate control signals, and control output of the synchronous signal in response to the frame rate control signals.
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公开(公告)号：US20240304131A1
公开(公告)日：2024-09-12
申请号：US18027103
申请日：2022-03-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Zhaohui MENG , Lin CONG , Xin DUAN , Yifan SONG
IPC: G09G3/20
CPC classification number: G09G3/2096 , G09G2310/04 , G09G2320/10 , G09G2340/0435 , G09G2360/18 , G09G2370/00
Abstract: The present disclosure provides a display control method and device, an image processing device and display apparatus, and belongs to the technical field of display. The display control method of the present disclosure includes: determining a data stream format according to data streams for the tth frame of image; determining a dynamic region and image data thereof from the data streams for the tth frame of image when the data stream format is a regional transmission format; and transmitting the image data for the dynamic region and/or the image data for the (t−1)th frame of image in the buffer space to the display assembly according to the end-of-transmission identifier in the data streams for the tth frame of image and the configuration command of the tth frame of image, so that the display assembly refreshes the display image.
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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
Inventor： Yifan SONG , Zhaohui MENG , Wenchao HAN , Wei SUN
IPC: H05B47/11
CPC classification number: H05B47/11
Abstract: 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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4.发明申请公开(公告)号：US20180239379A1
公开(公告)日：2018-08-23
申请号：US15508315
申请日：2016-09-07
Inventor： Boya ZHANG , Zhaohui MENG , Chenggeng ZHANG , Lintao ZHANG
IPC: G05F1/46 , G09G3/3225
CPC classification number: G05F1/461 , G05F1/10 , G09G3/3208 , G09G3/3225 , G09G2310/0291 , G09G2320/0204 , G09G2320/0223 , G09G2330/02 , G09G2330/021
Abstract: Provided are a power supply voltage control circuit and a method thereof, a driver integrated circuit, and a display device. The power supply voltage control circuit comprises: a voltage detection unit (11) configured to detect a power supply voltage (ELVDD, ELVSS) received by the display panel (72) from a power supply circuit (73); a comparison unit (12) configured to obtain a voltage difference between the power supply voltage (ELVDD, ELVSS) and a reference voltage (VF1,VF2) through comparison; and a power supply voltage control unit (13) configured to transmit a power supply voltage control signal to the power supply circuit (73) according to the voltage difference and the reference voltage (VF1,VF2), so that the power supply circuit (73) outputs a corresponding power supply voltage to the display panel (72), so as to compensate for the voltage drop loss during voltage transmission, optimize display effect of the product, reduce effectively the voltage drop loss from the output terminal of the power supply circuit to the display panel side can be, and ensure consistency of the voltages inputted into the display panel.
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公开(公告)号：US20240272481A1
公开(公告)日：2024-08-15
申请号：US18023639
申请日：2022-06-29
Inventor： Wei SUN , Lianghao ZHANG , Xin DUAN , Zhaohui MENG , Shuhuan YU , Ying ZHOU
IPC: G02F1/1335 , H05B47/16
CPC classification number: G02F1/133612 , H05B47/16
Abstract: A driving assembly includes a main control chip, a circuit selection chipset and a channel chipset. The circuit selection chipset includes more than one circuit selection chip used to be electrically connected with each light source voltage line in one-to-one correspondence, and is configured to enable each circuit selection chip to load the light source voltage to the connected light source voltage line one by one under control of the main control chip; the channel chipset includes more than one channel control chip, each channel control chip is used to be electrically connected with one or more channel lines; the channel chipset is configured to enable the channel control chip to control driving current on each connected channel line under control of the main control chip.
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Patent Agency Ranking
公开(公告)号：US20240230403A1
公开(公告)日：2024-07-11
申请号：US17925214
申请日：2021-12-27
Inventor： Yifan SONG , Wenchao HAN , Zhaohui MENG , Wei SUN
IPC: G01J1/44 , G01R31/265 , G01J1/42
CPC classification number: G01J1/44 , G01R31/2656 , G01J2001/4247 , G01J2001/4473
Abstract: 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
Inventor： Zhaohui MENG , Wei SUN , Wenchao HAN , Hong YANG , Lin CONG , Wenjun XIAO
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2310/0254 , G09G2310/0267 , G09G2310/0275 , G09G2310/0286 , G09G2310/08 , G09G2320/02
Abstract: 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：US20240073558A1
公开(公告)日：2024-02-29
申请号：US17765028
申请日：2021-05-11
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Zhaohui MENG , Xue DONG , Wei SUN , Yongzhong ZHANG
CPC classification number: H04N25/70 , G02F1/13306 , G09G3/20 , H04N25/60
Abstract: An embodiment of the present disclosure provides a virtual image display system, including: a photoelectric conversion part for receiving an optical image signal and converting the optical image signal into a current signal; a voltage conversion part electrically connected to the photoelectric conversion part, for receiving the current signal and converting the current signal into a voltage signal; and a display part electrically connected to the voltage conversion part, for receiving the voltage signal and displaying an image according to the voltage signal.
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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
Inventor： Zhaohui MENG , Jing LIU , Wei SUN , Li TIAN
Abstract: 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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10.发明申请公开(公告)号：US20220358868A1
公开(公告)日：2022-11-10
申请号：US17762691
申请日：2021-05-19
Inventor： Yilin FENG , Wei SUN , Lianghao ZHANG , Xin DUAN , Wenchao HAN , Zhaohui MENG , Li TIAN , Xinle WANG
IPC: G09G3/20
Abstract: The present disclosure provides a charging circuitry, a display device, a wearable device, a display driving method and a display driving device. The charging circuitry includes: a driving sub-circuitry configured to receive an image signal and convert the image signal into a display driving signal to be outputted to a data line of the array substrate; a circuitry power supply voltage end configured to apply a direct current voltage to the driving sub-circuitry; and a switch sub-circuitry arranged on a connection circuitry between the circuitry power supply voltage end and the driving sub-circuitry, and configured to be switched between a first state where the circuitry power supply voltage end is electrically coupled to the driving sub-circuitry and a second state where the circuitry power supply voltage end is electrically decoupled from the driving sub-circuitry.
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