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公开(公告)号：US20220335907A1
公开(公告)日：2022-10-20
申请号：US17762010
申请日：2021-03-10
Applicant: BOE Technology Group Co., Ltd.
Inventor： Bingchuan SHI , Xitong MA , Tianmin RAO
Abstract: The present disclosure provides a dynamic local dimming display control method and apparatus, and a display device, and the method includes: determining a grayscale statistical function of each display partition according to a grayscale of an image to be displayed; obtaining a grayscale control parameter of each display partition, where the grayscale control parameter is related to an overflow rate; calculating a backlight control signal of each backlight partition according to the grayscale control parameter and the grayscale statistical function of each display partition; determining a compensated grayscale value according to the backlight control signal of each backlight partition and a backlight diffusion model; and performing image display according to the compensated grayscale value. The present disclosure can ensure that a pixel overflow rate in pixel compensation is not greater than a preset value.
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公开(公告)号：US20220253183A1
公开(公告)日：2022-08-11
申请号：US17546970
申请日：2021-12-09
Applicant: BOE Technology Group Co., Ltd.
Inventor： Lihua GENG , Xitong MA
IPC: G06F3/0482 , G06F3/14
Abstract: Provided is a display device. The display device includes a first processor, a second processor, and a display screen. The first processor is configured to acquire at least two OSD images, and to form a combined image with at least two OSD images and send the combined image to the second processor. The second processor is electrically coupled to the first processor and is configured to receive the combined image, identify at least two OSD images from the combined image, acquire a first screen and acquire a second screen by superimposing at least two OSD images onto the first screen, and output the second screen to the display screen. The display screen is electrically coupled to the second processor and is configured to display the second screen.
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公开(公告)号：US20220237001A1
公开(公告)日：2022-07-28
申请号：US17535165
申请日：2021-11-24
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xitong MA , Xiaodong SHI , Lihua GENG , Xingxing LU , Xiao SU , Congrui WU
Abstract: A display device includes a first processor, a second processor, and a display module. The first processor is configured to: acquire version information of the second processor upon completion of startup of the second processor; determine version information of the corresponding first processor based on version information of the second processor; load a second configuration file corresponding to the version information of the first processor to output a second display screen associated with the second configuration file to the display module. The display module is configured to display the second display screen.
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公开(公告)号：US20220224859A1
公开(公告)日：2022-07-14
申请号：US17614346
申请日：2021-01-13
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Congrui WU , Lihua GENG , Xitong MA , Yanfu LI , Tianmin RAO
IPC: H04N7/01
Abstract: A video timing conversion method and a video timing conversion device, and a non-transitory computer-readable storage medium are provided. The video timing conversion method includes analyzing an original timing signal in a form of a differential signal of an original video, to obtain original timing parameters; determining target timing parameters and a target clock signal parameter according to a format of a target video and the original timing parameters; wherein the target timing parameters include a data enabling period number, a field sync data valid row number and a refreshing frequency, which are the same as the data enabling period number, the field sync data valid row number and the refreshing frequency of the original timing parameters, respectively; generating a target timing signal in the form of the differential signal of the target video according to the target timing parameters and the target clock signal parameter.
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公开(公告)号：US20210375221A1
公开(公告)日：2021-12-02
申请号：US17331922
申请日：2021-05-27
Applicant: BOE Technology Group Co., Ltd.
Inventor： Tianmin RAO , Congrui WU , Xitong MA
IPC: G09G3/34
Abstract: A method of controlling backlight brightness, applicable to a display device including a backlight module having a plurality of dimming zones, includes: determining a target image display mode; determining a target filter core according to the target image display mode; obtaining initial backlight control data by acquiring initial backlight control values of respective dimming zones according to image data of respective image segments of a first image, wherein the respective image segments correspond to the respective dimming zones in a one-to-one correspondence; obtaining target backlight control data by performing smoothing-filtering on the initial backlight control data with the target filter core, wherein the target backlight control data comprises respective target backlight control values of the plurality of dimming zones; and controlling backlight brightness of the respective dimming zones according to the respective target backlight control values. A backlight brightness control device and a display device are further provided.
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Patent Agency Ranking
公开(公告)号：US20210357170A1
公开(公告)日：2021-11-18
申请号：US16612548
申请日：2018-09-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xitong MA , Yangyang ZHANG
Abstract: Embodiments of the present disclosure relate to a method for determining an offset distance of a splicing screen in a multi-screen display system, a method for driving the multi-screen display system, and a related control apparatus. In the method for determining the offset distance of the splicing screen, a preset image is displayed in each of a plurality of splicing screens of the multi-screen display system. A feature point is determined in the preset image, and a position of the feature point of each splicing screen in the multi-screen display system is determined. Based on the positions of the feature points, at least one of a vertical offset distance and a horizontal offset distance of each splicing screen is determined.
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37.发明申请公开(公告)号：US20210056938A1
公开(公告)日：2021-02-25
申请号：US16945243
申请日：2020-07-31
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xitong MA , Lihua GENG , Xianzhen LI , Donglei MU
Abstract: The present disclosure provides a method and device for switching a display channel, a display driving device and a display device. The method includes: sending a first switching signal to a write controller of a current display channel when a switching instruction for switching from the current display channel to a target display channel is received; acquiring a frame address in which final write operation of data is completed, and taking the frame address as a first address and a next frame address as a second address; sending a second switching signal to a write controller of the target display channel; and sending a third switching signal to a read controller.
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公开(公告)号：US20200312210A1
公开(公告)日：2020-10-01
申请号：US16550416
申请日：2019-08-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Lihua GENG , Xitong MA
Abstract: A signal adjustment method, a signal adjustment circuit, an image processing circuit and a display device are disclosed. The signal adjustment method is used for adjusting a display signal including an original clock signal and an original data signal, and the method includes: delaying the original clock signal by a first delay amount to obtain a reference clock signal; delaying the original data signal by a second delay amount to obtain a reference data signal; sampling the reference data signal with the reference clock signal to obtain a sampled data; comparing the sampled data with a reference data to obtain a comparison result; and adjusting a reference timing relationship according to the comparison result, and the reference timing relationship is a timing relationship between the reference clock signal and the reference data signal.
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公开(公告)号：US20200290440A1
公开(公告)日：2020-09-17
申请号：US16759386
申请日：2019-03-29
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xitong MA , Tianyue ZHAO
Abstract: An antiglare system and method and a vehicle comprising the antiglare system. The antiglare system comprises a light transmittance adjustment plate, which includes at least one light transmittance adjustment portion, which in turn includes at least one first light transmittance adjustment region. The antiglare method comprises: capturing, from one side of a light transmittance adjustment plate, an image in a direction facing the light transmittance adjustment plate; determining a bright region in the image, and acquiring a position of the bright region in the image; determining, according to the position of the bright region, a first light transmittance adjustment region in the light transmittance adjustment plate; and if a bright region is present, adjusting light transmittance of the first light transmittance adjustment region. The antiglare system dynamically adjusts, according to different situations, light transmittance at different regions in a light transmittance adjustment plate, thereby adaptively adjusting light conditions.
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公开(公告)号：US20190318628A1
公开(公告)日：2019-10-17
申请号：US16341215
申请日：2018-07-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xitong MA , Tianyue ZHAO , Zhiguo ZHANG , Qi ZENG
Abstract: Provided is an auxiliary parking method, apparatus and system. The method includes: starting a vehicle image acquisition mode; receiving a plurality of radio frequency signals synchronously transmitted by at least two radio frequency identification transmitters distributed in a parking area in real time; determining a current position of a vehicle in the parking area according to the plurality of radio frequency signals as received; and displaying information identifying a vehicle virtual position to be parked in an image of the vehicle according to the current position of the vehicle in the parking area as determined and at least one available vehicle virtual position in the parking area.
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