Pixel compensation method, pixel compensation device and display device
A compensation method and liquid crystal display device technology, applied to static indicators, instruments, etc., can solve the problems of reduced display contrast, low brightness noise amplification, large compensation coefficient, etc., and achieve the effect of improving display contrast and improving display effect
Active Publication Date: 2020-01-03
XIAMEN TIANMA MICRO ELECTRONICS
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Problems solved by technology
[0004] However, when the above-mentioned regional dimming technology is used, there may be a problem that the compensation coefficient of the dark area (that is, the dimming area with darker luminance) is too large, resulting in the amplification of low-brightness noise that is originally imperceptible, and finally leading to a decrease in display contrast.
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[0026] The specific implementation manners of a pixel compensation method, a pixel compensation device and a display device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] To illustrate, in the embodiment of the present invention, the duty ratio of the brightness of the dimming area can be understood as: the ratio of the current brightness of the dimming area to the time when the brightness of the dimming area reaches the maximum value, so it can also be understood as the duty cycle of the dimming area. The brightness ratio of the light zon...
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The invention discloses a pixel compensation method, a pixel compensation device and a display device. In the embodiment of the invention, the gray scale of the first pixel can be compensated according to the first preset brightness gray scale function; the gray scale of the second pixel is compensated according to a second preset brightness gray scale function, the second pixel corresponding to the dimming area with low brightness and other pixels are compensated in different modes; the problems of dark area noise amplification and overcompensation caused by compensation of each pixel in thesame compensation mode in the prior art are avoided; moreover, when the second pixel is compensated, the compensated effect can reflect the picture corresponding to the dark area more truly, and goodtransition is formed between the compensated effect and the picture corresponding to the non-dark area, so that the whole display picture is finer and more natural, the display contrast is improved, and the display effect is improved.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a pixel compensation method, a pixel compensation device and a display device. Background technique [0002] A liquid crystal display is a non-self-luminous device, which requires a backlight module, and the display function can be realized by using the backlight provided by the backlight module. At present, in order to improve the display contrast of the liquid crystal display, a local dimming technology is adopted for the backlight module. [0003] For example, the backlight module may include a light-emitting substrate on which light-emitting elements arranged in an array are arranged. Each light-emitting element serves as a light-emitting device to provide a backlight source. The light-emitting elements on the light-emitting substrate are divided into regions to obtain multiple Dimming area, the luminous brightness of different dimming areas can be independently controlled ...
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IPC IPC(8): G09G3/36G09G3/34
CPCG09G3/342G09G3/3607
Inventor 詹小静孙莹罗斯建许育民
Owner XIAMEN TIANMA MICRO ELECTRONICS