Method for Improving Color Casting and Noise in Low Grayscale Display of TV LCD Screen

Abstract

The invention relates to a method for sensing display effect of a display screen of a liquid crystal television, which aims at solving the problem of the existing television that the display effect of the liquid crystal display is poor when the inputted analog signal is processed by the chip and the signal self generates jitter or the outside generates interference as the conversion accuracy of an analog to digital converter is limited. A method for improving low grey order display color cast and noise of a television liquid crystal screen specifically comprises the following steps of 1, connecting a PC (personal computer) host with a television core and a liquid crystal screen TCON (timer control register) panel through a DEBUG panel and a TCON burning panel; 2, executing a NCSTOOL picture quality adjusting tool on the PC, establishing and maintaining the communication connection between the PC and the television core, and setting RDITHER_EN as valid in a NCSTOOL dialog box; 3, executing a TCON CODE debug tool on the PC, establishing and maintaining the communication connection between the PC and the liquid crystal screen TCON panel, adjusting R (red), G (green) and B (blue) values from first grey order to fifth grey order in a TCON CODE debug interface, and enabling the ratio of the R, G and B values to be basically balanced. The method is suitable for the liquid crystal display screen.

Description

technical field [0001] The invention relates to display technology, in particular to a method for feeling the display effect of a liquid crystal television display screen. Background technique [0002] At present, the LCD screens used in TVs or monitors are compatible with the screens of multiple manufacturers, which may cause some manufacturers’ screens to display color casts and noises with slight jumps in light and dark in low-gray-scale screens when they are matched with the motherboard movement. , in the actual use of consumers, it mainly shows that when viewing a darker scene or object in the image, the area of ​​​​the scene or object will randomly appear some kind of mottled creeping and drawing noise, which affects the subjective effect and dark field Details matter. In terms of the main chip of a TV or display, since the chip needs to perform analog-to-digital conversion on the signal before processing the input analog signal, and the analog-to-digital converter is...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the conversion accuracy of the analog-to-digital converter in the current TV is limited, which leads to the problem that when the chip processes the input analog signal, when the signal itself shakes or the outside world interferes, the display effect of the LCD screen is poor.