Research and application of on-board LCD technology based on local dimming algorithm
In order to improve the low energy efficiency and display quality of traditional vehicle LCD instrument,a local dimming algorithm applied to vehicle LCD instrument was proposed.The input RGB color mode was converted to YUV color mode to extract pixel brightness data,and brightness data was extracted according to the image sub-region corresponding to the backlight partition.The diffusion process of LED backlight when propagating in the backlight module was simulated by Blur Mask Approach,the backlight brightness data of each pixel point was obtained,and the final local dimming image was obtained through accurate compensation of LCD pixels.The results showed that this method was superior to other local dimming algorithms in EN,EME and PSNR.Meanwhile,in the prototype experiment,the average overall energy consumption was reduced by 20.7%.It shows that the algorithm can improve the display quality and reasonably reduce the overall power consumption of the on-board display,and has good applicability for all kinds of automotive instruments.
local dimmingliquid crystal displayback light brightnesssmooth backlightpixel compensation
NETL
NSTL
万方数据
维普
