Hisense USA Corporation

Hisense Electric Co., Ltd.

Hisense International Co., Ltd.

Hisense Visual Technology Co., Ltd.

Jia Yang

Yuxin Zhang

Shunming Huang

Jie Yang

Yujie Diao

Weidong Liu

Mingsheng Qiao

One or more embodiments of the present application disclose a backlight source control method of a display device, the display device and a storage medium. The method includes: determining a display subregion corresponding to a backlight source to be turned off; determining a first backlight source brightness value of an adjacent display subregion of the display subregion corresponding to the backlight source to be turned off; lowering the first backlight source brightness value to obtain a second backlight source brightness value; and setting the backlight source brightness value corresponding to the adjacent display subregion to be the second backlight source brightness value.

Backlight source control method of display device, display device and storage medium

The disclosure provides an apparatus and method for controlling liquid crystal display brightness, and a liquid crystal display device, where the method includes: determining grayscale values of pixels in a zone image data block under a predetermined rule according to a received image signal; pre-obtaining a zone backlight value corresponding to the zone image data block according to the grayscale values in the zone image data block; multiplying the pre-obtained a zone backlight value with a backlight value gain coefficient to obtain a backlight value to which a gain is applied of a backlight zone, wherein the backlight value gain coefficient is more than 1; and mapping the respective zone backlight values to driver circuits of backlight sources in the corresponding backlight zones.

Apparatus and method for controlling liquid crystal display brightness, and liquid crystal display device

The disclosure discloses a backlight brightness adjusting method and device and a liquid crystal display device. In the backlight brightness adjusting method, grayscale characteristic values of respective primary colors in an image to be displayed are obtained, that is, contributions of the respective primary colors to an overall grayscale are obtained, to thereby obtain the grayscale contributions of the respective primary colors in the image to be displayed respectively; a backlight value is determined by giving different coefficients to the grayscale characteristic values of the respective primary colors; and finally an output of a backlight driver is adjusted according to the backlight value to thereby adjust backlight brightness.

Backlight brightness adjusting method and device, and liquid crystal display device

The disclosure discloses a method and device for adjusting grayscale brightness and a 3D display device. In the present disclosure, an initial gray level and a target gray level are determined, and it is determined whether the target gray level is too low or too high, so that it is determined whether over-voltage driving can be applicable, and in the case that it is not appropriate to adjust grayscale brightness through over-voltage driving, a backlight brightness adjustment table is searched, and backlight brightness is adjusted up or down using a found adjustment parameter to thereby adjust the grayscale brightness so as to reduce crosstalk in liquid crystal display.

Method and device for adjusting grayscale brightness and 3D display device

A method of processing a display signal includes: obtaining the average of grayscales of at least one display zone in a previous frame of image and a current frame of image respectively; comparing in magnitude the average of grayscales of at least one display zone in the current frame of image with the average of grayscales of the corresponding display zone in the previous frame of image; and outputting a backlight control value to increase or reduce the brightness of an illuminating element corresponding to the display zone when the average of grayscales of the at least one display zone in the current frame of image is larger or smaller than the average of grayscales of the corresponding display zone in the previous frame of image.

Method and apparatus for controlling a backlight brightness according to average grayscales

Embodiments provide a backlight control method and device and a liquid crystal display device, which relate to the liquid crystal display field and are used to achieve the purposes of meeting the requirements on different image quality enhancements in different display regions of the liquid crystal screen and improving the display quality and the sense of display layering of pictures. The method comprises: dividing n backlight subregions into m backlight regions; acquiring an average backlight value of each backlight region among the m backlight regions; searching, from a pre-acquired gain search table, a gain value corresponding to the average backlight value of each backlight region among the m backlight regions; adjusting backlight values of backlight subregions contained in each backlight region correspondingly according to the gain value corresponding to each backlight region; and outputting adjusted backlight values of the n backlight subregions. The embodiments are applicable to backlight adjustment scenes.

Growing community of inventors

Qingdao, China

Jia Yang