Display device, display control method, and display control device
A display control method and display device technology, which are applied to static indicators, instruments, etc., and can solve problems such as image display distortion, poor global dynamic dimming display effect, optical crosstalk display, etc.
Inactive Publication Date: 2019-09-17
BOE TECH GRP CO LTD +1
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Problems solved by technology
Dynamic backlight control technology includes two types: global dynamic dimming and regional dynamic dimming. The principle of global dynamic dimming is to control the global brightness by considering the entire display image as a whole. The structure of this dimming method is relatively simple, and the operation It is not complicated, but the phenomenon of image display distortion will still appear when performing dynamic dimming. At the same time, this dimming method is difficult to achieve a balance between the brighter areas and darker areas of the entire video screen. Large-size LCD screen, the display effect of global dynamic dimming is relatively poor
[0004] The principle of regional dynamic dimming is to divide the entire display image into multiple regions to adjust the sub-regions of the backlight, that is, after receiving the display screen, use the brightness statistical analysis and combined with the control method to dynamically adjust the brightness of the backlight of each part. Improve the display contrast, but this dimming method still has the problem of optical crosstalk and inaccurate brightness of the displayed image, and requires a relatively large backlight drive circuit, which is also the biggest disadvantage of regional dynamic dimming
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[0043] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0044] Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities ...
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The invention relates to a display device, and a display control method and device and relates to the display technology field. The display control method comprises steps that statistics of image data of each pixel in a preset region of a to-be-displayed frame is carried out, a first brightness threshold of the preset region is determined, and the first brightness threshold is corrected to acquire a second brightness threshold; whether a brightness value of each pixel of the preset region is smaller than the second brightness threshold is determined; if not, the image data of the pixel is corrected according to a first multiple; if yes, the image data of the pixel is corrected according to the second multiple greater than the first multiple; a brightness reduction coefficient of a backlight is determined according to the first brightness threshold and the second brightness threshold, and light emitting brightness of the backlight is reduced according to the brightness reduction coefficient. The method is advantaged in that a light leakage phenomenon can be ameliorated, display image contrast of a liquid crystal screen is improved, and power consumption of the display device is reduced.
Description
technical field [0001] The present disclosure relates to the field of display technology, and in particular, to a display control method, a display control device, and a display device. Background technique [0002] At present, people's demand for portable mobile devices is increasing, and LCD (Liquid Crystal Display, liquid crystal display), as an important device of human-computer interaction interface, has become a bridge between people and mobile devices. People's demand for color and information content makes the liquid crystal display must have sufficient resolution, sufficient color and a relatively large display area. The improvement of the quality of the liquid crystal display also leads to an increase in the power consumption of the display device. It has become a trend to reduce the power consumption of display devices to improve the display quality. [0003] A liquid crystal display usually includes a display module and a backlight module, wherein the backlight ...
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IPC IPC(8): G09G3/34G09G3/36
Inventor 王洪军刘媛媛袁先锋汪敏马睿
Owner BOE TECH GRP CO LTD