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1.发明公开公开(公告)号：US20240029672A1
公开(公告)日：2024-01-25
申请号：US17600459
申请日：2021-08-26
Inventor： Jinfeng LIU
IPC: G09G3/34
CPC classification number: G09G3/3426 , G09G2320/0285 , G09G2320/0693 , G09G2320/0626
Abstract: The present application discloses a backlight module brightness calibration method. The method includes: a brightness detection step, a grayscale sorting step, a grayscale calibration table generation step, and a grayscale calibration table output step. The present application re-sorts first grayscale values of a grayscale range of backlight divisions of a display device according to actual brightness values to obtain a grayscale calibration table to further mitigate or avoid a technical issue of a discontinuous or jump-varying grayscale transition of a backlight module of a conventional display device.
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公开(公告)号：US20240013745A1
公开(公告)日：2024-01-11
申请号：US17417434
申请日：2021-05-20
Inventor： Jhenwei HE , Jinfeng LIU , Fengcheng XU
IPC: G09G3/36
CPC classification number: G09G3/3688 , G09G3/3696 , G09G2330/021 , G09G2320/028 , G09G2320/0673 , G09G2320/0276 , G09G2310/0291 , G09G2310/08
Abstract: A display panel and a display device are provided. The display panel includes a power management module and a voltage conversion module electrically connected between the power management module and a plurality of data lines to convert a plurality of groups of grayscale voltages from a plurality of groups of gamma binding-point voltages generated from the power management module and transmit the grayscale voltages to the plurality of data lines, which allows two adjacent data lines to receive different grayscale voltages, thereby allowing liquid crystal molecules to deflect more in the display panel to remedy a problem of color shift of viewing angles.
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公开(公告)号：US20230154367A1
公开(公告)日：2023-05-18
申请号：US17251882
申请日：2020-12-04
Inventor： Jinfeng LIU
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2310/0272 , G09G2310/08 , G09G2330/021
Abstract: A data driving chip and a display device are provided. The data driving chip includes a latch module configured to receive current display data and latch the current display data, and after the current display data is latched, output the current display data. An output module is configured to output the current display data outputted by the latch module to a display panel. The latch module is further configured to clear the current display data latched in the latch module when the output module outputs the current display data.
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公开(公告)号：US20220392416A1
公开(公告)日：2022-12-08
申请号：US17424552
申请日：2021-04-30
Applicant: Huizhou China Star Optoelectronics Display Co., Ltd. , TCL China Star Optoelectronics Technology Co., Ltd.
Inventor： Fengcheng XU , Jinfeng LIU
IPC: G09G3/36
Abstract: A display panel, a control method thereof, and a storage medium are provided. The method includes acquiring a first actual brightness parameter and a first reference brightness parameter at a first position; determining a first compensated brightness parameter at the first position according to the first reference brightness parameter and the first actual brightness parameter if the absolute value of the difference between the first reference brightness parameter and the first actual brightness parameter is not less than a first threshold; and determining a first target brightness parameter at the first position according to the first compensated brightness parameter and a first preset brightness parameter at the first position.
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公开(公告)号：US20240046414A1
公开(公告)日：2024-02-08
申请号：US17429950
申请日：2021-07-21
Inventor： Jinfeng LIU
IPC: G06T3/40
CPC classification number: G06T3/4053 , G06T3/4023
Abstract: The present application provides a super-resolution image reconstruction method and a device. Since the super-resolution image reconstruction method fully considers internal relationship between local pixels of an original image, detailed information of an image can be better maintained, while problems of aliasing, blurring, and graininess are significantly reduced, and display effect of the original image after stretching is improved.
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Patent Agency Ranking
公开(公告)号：US20240013735A1
公开(公告)日：2024-01-11
申请号：US17417804
申请日：2021-06-01
Inventor： Jinfeng LIU
CPC classification number: G09G3/3406 , G09G3/32 , G09G2320/045 , G09G2300/0842 , G09G2310/08 , G09G2310/0267
Abstract: An embodiment of the application discloses a backlight driving circuit, a display panel, and an electronic device, including a light-emitting unit, a scan control unit, and a light-emitting control unit. The number of transistors in the scan control unit is increased to enable each transistor to alternately drive the light-emitting control unit to emit light, improving stability and extending the life of the backlight driving circuit.
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公开(公告)号：US20240012194A1
公开(公告)日：2024-01-11
申请号：US17430113
申请日：2021-07-15
Inventor： Jinfeng LIU
IPC: F21V8/00
CPC classification number: G02B6/009 , G02B6/0055 , G02B6/0073 , G02B6/0088 , G02B6/0068 , G02F1/133605
Abstract: A backlight module and a display device are provided. The backlight module includes a plurality of light boards, wherein each light board includes at least two light source groups arranged at intervals. An overlap area of adjacent reflective sheets is located between adjacent light source groups in a same light board, and a splicing area of adjacent light boards is located in a non-overlap area of a same reflective sheet so that a protrusion of the reflective sheets in the overlap area will not reflect too much light to the splicing area, which solves a problem of uneven brightness at splicing positions of the light boards of current display products.
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公开(公告)号：US20230155718A1
公开(公告)日：2023-05-18
申请号：US17423327
申请日：2021-05-27
Inventor： Jinfeng LIU
IPC: H04L1/00
CPC classification number: H04L1/0008
Abstract: An encoding method, a decoding method, an encoding device and a decoding device are provided. The encoding method includes: obtaining a first bit stream of an original encoded data; determining whether a number of the successive bits is greater than a predetermined number; if the number of the successive bits is greater than the predetermined number, then selecting at least one target bit from the successive bits; performing a logic NOT operation on the target bit to obtain a symbol bit; and inserting the symbol bit to the successive bits to obtain an encoded bit stream. The present disclosure could raise the encoding speed and reliability.
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公开(公告)号：US20230094046A1
公开(公告)日：2023-03-30
申请号：US16960556
申请日：2020-06-05
Inventor： Fuyi WANG , Fengcheng XU , Qingsheng LAN , Jinfeng LIU
Abstract: A backlight unit, a control method thereof, and a liquid crystal display device are provided. The control method includes following steps: obtaining backlight data corresponding to each of the partitions, the backlight data including multiple bits of data; dividing a frame of a lighting process of each light-emitting unit of the partitions into a plurality of sub-fields having different durations, wherein each of the sub-fields corresponds to one of the bits of data; and outputting the sub-fields having different durations corresponding to each of the partitions in a preset order.
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10.发明申请公开(公告)号：US20220406265A1
公开(公告)日：2022-12-22
申请号：US17255009
申请日：2020-12-18
Inventor： Jinfeng LIU , Xuebing ZHOU
IPC: G09G3/34
Abstract: A liquid crystal display backlight module controlling method and a controlling device thereof disclosed in the present invention includes a programmable logic gate array board extracting backlight information from an image signal. Calculation of local dimming is performed by the programmable logic gate array board, a calculation buffer for local dimming calculation is sufficient, which can increase liquid crystal display backlight divisions. Furthermore, the present invention employs a row signal and a column signal to control and switch on light emitting diodes in the backlight light board, which can achieve the cost lowering effect.
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