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公开(公告)号：US20220366864A1
公开(公告)日：2022-11-17
申请号：US17280199
申请日：2021-03-16
Inventor： Jinfeng LIU
Abstract: A panel driving circuit and a display device are provided. The panel driving circuit includes a control board and a plurality of driving modules. A plurality of first connectors and a plurality of first oblique-insertion-proof protection circuits are disposed on the control board. Each of the driving modules includes a driving circuit board and a plurality of driving chips. The driving circuit board is connected to the plurality of driving chips. A second connector and a second oblique-insertion-proof protection circuit are disposed on each of the driving circuit boards. Irreversible damage to displays caused by improper wiring insertion can be prevented.
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公开(公告)号：US20220320145A1
公开(公告)日：2022-10-06
申请号：US17600327
申请日：2020-12-16
Inventor： Jinfeng LIU
IPC: H01L27/12
Abstract: The present disclosure provides a display device and an electronic device. The display device includes a display panel and a source driving chip. The display panel includes a plurality of traces in a fan-shaped distribution. A plurality of signal output terminals and a plurality of compensation traces are disposed in the source driving chip. The compensation traces are configured to reduce a resistance difference among the plurality of traces in a fan-shaped distribution, and each signal output terminal is electrically connected to a corresponding one of the traces in a fan-shaped distribution using one corresponding compensation trace.
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公开(公告)号：US20220301480A1
公开(公告)日：2022-09-22
申请号：US17252402
申请日：2020-11-30
Inventor： Jinfeng LIU
IPC: G09G3/20
Abstract: The present disclosure provides a display panel and a display device. The display panel includes source driver chips. The source driver chips include charging compensation modules, and each of the charging compensation modules includes: a plurality of shift registers cascadely connected and configured to time-divisionally output a plurality of pulse signals, and a plurality of level shift circuits time-divisionally conducted in response to the plurality of the pulse signals to prevent the plurality of the level shift circuits in the source driver chips from outputting and generating a plurality electron currents at a same time, which would result in a superposition of current peaks and cause electromagnetic interference problems.
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公开(公告)号：US20250095542A1
公开(公告)日：2025-03-20
申请号：US18284327
申请日：2023-03-31
Applicant: Huizhou China Star Optoelectronics Display Co., Ltd. , TCL China Star Optoelectronics Technology Co., Ltd.
Inventor： Jinfeng LIU
IPC: G09G3/32
Abstract: A light-emitting diode (LED) driving chip and a light-emitting substrate are provided. The LED driving chip includes a multiplexing pin for outputting a multiplexed signal. The multiplexed signal includes at least two of power information, data information, and clock information. The power information is configured to provide an operating voltage to the LED driving chip. The data information is configured to provide data signals to the LED driving chip. The clock information is configured to provide clock signals to the LED driving chip. This reduces the number of pins on the LED driving chip.
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公开(公告)号：US20250078725A1
公开(公告)日：2025-03-06
申请号：US17925712
申请日：2022-08-30
Inventor： Jinfeng LIU
Abstract: A light-emitting module, a control method of the light-emitting module, and a display module are provided to include a light source layer and a driving layer. The light source layer includes light source groups. Each of the light source groups includes a first sub-light source and a second sub-light source. In the driving layer, the driving chip in each stage includes a first sub-light source pin electrically connected to one of the first sub-light sources and a second sub-light source pin electrically connected to one of the second sub-light sources. The first sub-light source pins and the second sub-light source pins are used for time-division transmission of address signals and display signals.
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Patent Agency Ranking
公开(公告)号：US20240242687A1
公开(公告)日：2024-07-18
申请号：US17426740
申请日：2021-07-13
Applicant: HUIZHOU CHINA STAR OPTOELECTRONICS DISPLAY CO., LTD. , TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Inventor： Fengcheng XU , Jinfeng LIU
CPC classification number: G09G3/3607 , G09G3/2096 , G09G3/3648 , G09G2310/0251 , G09G2320/0233 , G09G2320/0673
Abstract: A display device includes a display unit and a driving circuit. The display unit includes a plurality of display regions. The driving circuit is configured to drive the display unit. The driving circuit includes a drive module. The drive module includes algorithms which are respectively correspond to the plurality of display regions one to one. A driving method of a display device, and a mobile terminal are also provided.
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17.发明公开公开(公告)号：US20240046851A1
公开(公告)日：2024-02-08
申请号：US17623583
申请日：2021-11-02
Inventor： Jinfeng LIU , Yue FAN
IPC: G09G3/20
CPC classification number: G09G3/2096 , G09G2320/0247 , G09G2360/16 , G09G2340/00 , G09G2340/0435
Abstract: The present application provides a flicker adjustment method of a frequency conversion display device and frequency conversion display device, by the time controller detect and count the frame number or the total time length of the image frames that are continuous with the same frame rate, and compare the frame number or the total time length to a predetermined constant frequency determination threshold value, when the frame number or the total time length is equal to or greater than the predetermined constant frequency determination threshold value, the white tracking compensation table corresponding to each of the image frames that are continuous with the same frame rate is revised as the same white tracking compensation table. Therefore, the present application avoids the issues of flickering images, achieves the goal of lowered flickering images of the frequency conversion display device and improvement of display quality.
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公开(公告)号：US20240038114A1
公开(公告)日：2024-02-01
申请号：US17618516
申请日：2021-11-04
Inventor： Jinfeng LIU , Qingsheng LAN
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2310/0275 , G09G2310/0286 , G09G2310/0291 , G09G2310/0289 , G09G2310/0297 , G09G2330/021
Abstract: A data driving chip and a display device are disclosed. The data driving chip and the display device includes a signal identifying circuit between the digital signal processing circuit and the analog signal processing circuit. In this way, the signal identifying circuit could identify the signal in the display data signal. When the signal identifying circuit identifies the invalid display command signal, the signal identifying circuit controls the invalid display signal not to be outputted to the analog signal processing circuit such that the power consumption could be reduced.
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公开(公告)号：US20230419914A1
公开(公告)日：2023-12-28
申请号：US17281122
申请日：2021-03-17
Inventor： Jinfeng LIU
CPC classification number: G09G3/3406 , G09G3/3685 , G09G2320/0257
Abstract: The present disclosure provides a backlight driving circuit and a liquid crystal display device. The backlight driving circuit of the present disclosure adds a light emitting control module to control a light emitting device to turn on or off, thereby controlling a backlight to turn on or off, realizing a function of black insertion frame by frame of the backlight of the liquid crystal display device, satisfying a BFI function requirement. In addition, it improves product quality. In addition, the liquid crystal display device of the present disclosure lights up the backlight after a deflection of a liquid crystal layer is stabilized and displays normally, and therefore, a problem of trailing when displaying images can be decreased.
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公开(公告)号：US20230162663A1
公开(公告)日：2023-05-25
申请号：US17424182
申请日：2021-05-31
Inventor： Jinfeng LIU
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2330/045 , G09G2310/0278
Abstract: A driving circuit and a display device are provided. The driving circuit includes a level conversion chip, a scan line, a data line, a power line, a first transistor, a second transistor, and a light emitting unit. A protection unit is disposed between the level conversion chip and an intersection of the scan line and the power line, and the protection unit is configured to reduce current between the level conversion chip and the power line when the scan line and the power line are short-circuited. In the embodiment of the present disclosure, when the scan line and the power line are short-circuited, the protection unit reduces the current between the power line and the level conversion chip to prevent excessive current between the level conversion chip and the power line, and prevent the level conversion chip from heating and burning.
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