Method and device for compensative adjustment of pixel data and liquid crystal display panel

Abstract

An embodiment of the invention discloses a method for compensative adjustment of pixel data. The method includes a step 1 of receiving pixel original gray scale data of a to-be-displayed image; a step2 of querying a first compensation table for each pixel original gray scale data so as acquire a first gray scale value and a second gray scale value corresponding to each sub pixel original gray scale data; a step 3 of querying a second compensation table so as to acquire a first adjustment value and a second adjustment value corresponding to each sub pixel original gray scale data in the pixels; a step 4 of performing adjustment on the first gray scale value of each sub pixels in the pixels with the first adjustment value so as to acquire a first gray scale value of said sub pixel subjectedto adjustment; performing adjustment on the second gray scale value with the second adjustment value so as to acquire a second gray scale value of said sub pixel subjected to adjustment; a step 5 ofdisplaying the first gray scale value and the second gray scale value subjected to adjustment of each sub pixel of each pixel. The invention also discloses a corresponding device and a liquid crystaldisplay panel. By applying the invention, the screen view angle can be enlarged, pixel granular sensation can be reduced and side view color effect can be improved.

Description

technical field [0001] The invention relates to the field of display, in particular to a method and device for compensating and adjusting pixel data and a liquid crystal display panel. Background technique [0002] With the development of technology, there are more and more demands for large-size liquid crystal display screens, and the size of liquid crystal display screens that can be produced is also increasing. For large-size liquid crystal display screens, the viewing angle parameter is particularly important. [0003] Among different types of liquid crystal display panels, the high vertical alignment (High Vertical Alignment, HVA) mode liquid crystal display panel has obvious disadvantages compared with the in-plane switching (In-Plane Switching, IPS) mode liquid crystal display panel in terms of viewing angle. Therefore, for a large-sized HVA type liquid crystal display panel, it is generally necessary to adopt a viewing angle compensation technology (VAC) to improve t...

AI Technical Summary

Problems solved by technology

When the grayscale value difference between the R, G, and B sub-pixels in the original pixel is small, the size ratio relationship of the RGB grayscale obtained by the side view is close to that of the front view; however, if the grayscale values ​​of R, G, and B in the original pixel When the difference is large, the RGB gray scale ratio system obtained by the corresponding side view will have a large change, which will cause the color effect displayed by the side view to deviate.

like Figure 5 As shown in , it shows a front view and side view color effect map after compensation by viewing angle compensation technology. For example, for the original pixel (220, 150, 100), after compensation by viewing angle compensation technology, from figure 2 It can be seen that under the same light intensity, the pixel effect displayed in its side view is equivalent to the pixel (215, 192, 176), which will cause the color to be whitened

Images