Boe Technology Group Co., Ltd.

Beijing Boe Optoelectronics Technology Co., Ltd.

Boe Technology Groupco., Ltd.

Boe Mled Technology Co., Ltd.

Chongqing Boe Optoelectronics Technology Co., Ltd.

Yilang Sun

Tiankuo Shi

Zhihua Ji

Lingyun Shi

Xiaomang Zhang

Yifang Chu

Chuanjun Liu

Yue Li

Yanhui Xi

Yifan Hou

Xin Duan

Wenyu Li

Xue Dong

Hao Zhang

Wei Sun

Lili Chen

Ming Jin Chen

Yan Sun

Xiurong Wang

Jingpeng Zhao

Guofeng Hu

Bin Dai

Chengqi Zhou

Zhiheng Zhou

Chuan Shuai

Zhou Sun

Provided are a method for controlling backlight of a display device, a backlight controller for a display device, and a display device. The method includes: identifying a light emission luminance of each backlight partition in a backlight module according to display luminances of the plurality of display partitions; when the plurality of backlight partitions include two adjacent backlight partitions and an absolute value of a difference between the light emission luminance of the two adjacent backlight partitions is greater than a target threshold, adjusting the light emission luminance of at least one of the two adjacent backlight partitions such that the absolute value of the difference between the light emission luminances of the two adjacent backlight partitions is decreased; and after the luminance is adjusted, controlling light-emitting of each backlight partition.

Method for controlling backlight, backlight controller of display device, and display device

The present disclosure provides an image processing method and a display device including rows of actual pixels each including actual sub-pixels, and starting positions of actual sub-pixels in odd-numbered and even-numbered rows are staggered by a distance of half of an actual sub-pixel. The method includes: determining rows of theoretical pixels corresponding to a to-be-displayed image, each theoretical pixel including theoretical sub-pixels, each actual pixel corresponding to at least two theoretical pixels; calculating grayscale data of each actual sub-pixel in a manner of: for a target actual pixel, determining a rendering mode for calculating grayscale data of each actual sub-pixel of the target actual pixel according to whether there is a specified detail feature in a pixel area where target theoretical pixels corresponding to the target actual pixel are located, different rendering modes are employed when there is or there is not a specified detail feature in the pixel area.

Image processing method and display device

A display device and a display control method, and the display device includes: a backlight module, a first display panel, and a second display panel, and a processor. The processor is configured to: acquire a pixel grayscale matrix of an image to be displayed; determine desired brightness of each pixel by using a grayscale-brightness curve of the second display panel based on the pixel grayscale matrix; determine set light-emitting brightness of backlight partition according to grayscale information in the pixel grayscale matrix corresponding to the backlight partition; obtain a first corrected brightness of each backlight partition based on light diffusion coefficients of the plurality of backlight partitions; determine a grayscale of pixel unit according to a brightness difference between the first corrected brightness and the desired brightness; obtain a second corrected brightness of the backlight partition.

Display device, display control method and driving device

The embodiments of this disclosure disclose a liquid crystal display device and a control method thereof, a head-mounted display device and a computer-readable storage medium. The control method of the liquid crystal display device comprises: obtaining a state of each pixel in the display panel based on inputted image data; obtaining a display zone comprising both pixels in a bright state and pixels in a dark state based on the state of each pixel in the display panel, and using the obtained display zone as a destination zone; obtaining a halo region based on the state of the pixels in the destination zone, wherein the halo region comprises pixels in the dark state in the destination zone; generating a first control signal based on the halo region; and controlling based on the first control signal a backlight zone to be adjusted.

Liquid crystal display device and control method thereof, head-mounted display apparatus and medium

The present disclosure relates to a method for driving a display device, a driving apparatus, a display device and a computer-readable medium. The method includes: determining backlight signal values of backlight partitions in a backlight module according to input grayscale values of pixels; adjusting the backlight signal values of the backlight partitions by performing peak stretching processing on the backlight partitions in the condition that a total power consumption of the adjusted backlight module is less than a power threshold of the backlight module; determining backlight signal values of the pixels; determining output grayscale values of the pixels according to the backlight signal values of the pixels and the input grayscale values of the pixels; driving a display panel to display an image according to the output grayscale values of the pixels; and driving the backlight module according to the adjusted backlight signal values of the backlight partitions.

Display device and method for driving the same, driving apparatus, and computer-readable medium

A color gamut conversion method, a color gamut converter, a display device, an image signal conversion method, a computer device and a non-transitory storage medium are disclosed. The method includes: acquiring RGB signals and a preset grayscale value of a white subpixel in each pixel of a converted image according to grayscale values of monochromatic subpixels in each pixel of an original image corresponding to the RGB signals, the converted image is obtained by converting the original image from an RGB gamut to an RGBW gamut; and acquiring a target grayscale value of the white subpixel at least according to a first maximum grayscale of the white subpixels and the preset grayscale. As for a first saturation color patch in the original image, a first maximum grayscale of a white subpixel corresponding to each pixel in the first saturation color patch is equal to a grayscale threshold.

Color gamut conversion method, color gamut converter, display device, image signal conversion method, computer device and non-transitory storage medium

A picture compensation method and apparatus, a display device and a non-volatile computer-readable storage medium are disclosed. The method includes: partitioning light-emitting devices in a plurality of first partitions based on information of the plurality of first partitions of a backlight source to obtain a plurality of second partitions, wherein the first partition includes a plurality of synchronously controlled light-emitting devices, and the number of rows and the number of columns of light-emitting devices in each of the plurality of second partitions are equal; fitting a luminance diffusion curve of each of the plurality of second partitions based on a luminance diffusion curve of each light-emitting device in each of the plurality of second partitions; determining a backlight value of a pixel unit corresponding to each pixel on a display panel based on the luminance diffusion curve of each of the plurality of second partitions and a gray-scale value of each pixel of an input image; and compensating for a picture of the input image based on the backlight value of each pixel unit.

Picture compensation method and apparatus, display device and non-transitory computer-readable storage medium

A display control method and apparatus of backlight sources, and a display device are provided. The method includes: determining a set backlight value of each backlight area according to a grayscale of an image to be displayed; determining an equivalent backlight luminance of each pixel point according to backlight source diffusion transmission parameter of the backlight module of the display device and the set backlight value of each backlight area; determining a compensation image according to the equivalent backlight luminance of each pixel point; and controlling the backlight module to turn on the backlight sources according to the set backlight value of each backlight area, and controlling the display panel to display the image according to the compensation image.

Display control method and apparatus of backlight sources, and display device

An image display processing method for a display device, an image display processing device, a display device, and a non-volatile storage medium are provided. The display device includes a backlight unit, and the backlight unit is divided into a plurality of display backlight blocks and driven by a local dimming mode. The image display processing method includes: determining at least one boundary backlight block corresponding to a display image in the plurality of display backlight blocks; determining at least one target pixel and at least one background pixel corresponding to each boundary backlight block, and obtaining a backlight value of each boundary backlight block based on a grayscale value of the at least one target pixel and a grayscale value of the at least one background pixel; and displaying the display image.

Image display processing method and device, display device and non-volatile storage medium

A luminance compensating method of a display device, a luminance compensating device, a display device and a storage medium. The display device includes a backlight module and a display panel, the display panel includes a plurality of portions, the backlight module includes a plurality of backlight units, and the plurality of backlight units respectively correspond to the plurality of portions. The method includes: setting luminance values of the plurality of backlight units of the backlight module to an identical set luminance value, and setting gray level data of a plurality of pixel units of the display panel to an identical set gray level value; measuring light-emitting luminance values of the plurality of portions of the display panel to obtain a first luminance matrix of the display panel, in a case where the plurality of backlight units emit light; determining a compensation-coefficient matrix based on the first luminance matrix.

Luminance compensating method, luminance compensating device, display device and storage medium

An image display processing method for a display device, an image display processing device, a display device, and a non-volatile storage medium are provided. The display device includes a backlight unit, and the backlight unit includes a plurality of display backlight blocks and is configured to be driven by a local dimming mode. The image display processing method includes: obtaining a peak driving threshold of an (s&#x2212;1)-th frame of image based on respective backlight values of the plurality of backlight blocks of the (s&#x2212;1)-th frame of image after a first local dimming process is performed on the (s&#x2212;1)-th frame of image; obtaining respective adjusted backlight values of the plurality of backlight blocks of the s-th frame of image; and displaying the s-th frame of image by using the respective adjusted backlight values of the plurality of backlight blocks of the s-th frame of image.

A method for acquiring backlight diffusion transmission parameter, a display control method and a display control device are provided. The method includes: selecting a plurality of backlight sources respectively arranged at different backlight regions of a display device and measuring a light diffusion data for each of the plurality of backlight sources, where the light diffusion data includes luminance values of a plurality of pixel points of a screen of the display device and a distance between a position of each pixel point and a position of a certain backlight source of the plurality of backlight sources in the case that only the certain backlight source is turned on; preprocessing the light diffusion data to determine effective pixel points of the plurality of pixel points; fitting the light diffusion data of the effective pixel points, to obtain a point spread function y=&#x192;(x) indicating a relationship between y representing a diffusion luminance value and x representing a diffusion distance, where y representing a diffusion luminance value is a luminance value of each pixel point, and x representing a diffusion distance is a distance between a position of the each pixel point and a position of a certain backlight source of the plurality of backlight sources; and determining the point spread function y=&#x192;(x) as the backlight diffusion transmission parameter.

Method for acquiring backlight diffusion transmission parameter, display control method and display control device

Disclosed are a driving method and driving device of a display device, and a related device. After the backlight signal value of the backlight area is subjected to peak driving, the backlight signal value of each backlight area subjected to peak driving is subjected to backlight diffusion to obtain the backlight signal value of each pixel, and then the output luminance value of each pixel is determined according to the backlight signal value of each pixel and the relationship between the corresponding grayscale value when the backlight module is always on and the peak driving threshold, so as to perform display control.

Growing community of inventors

Beijing, China

Yilang Sun