Method for driving LCD panel and driving IC of LCD panel

Abstract

The invention provides a method for driving an LCD panel based on a 2n primary color sub-pixel structure and a driving IC of the LCD panel. A sub-pixel array of the LCD panel is an M*N array, and the LCD panel is based on the 2n primary color sub-pixel structure. According to the method, the driving IC of the LCD panel based on a 3 primary color sub-pixel structure is adopted, in the row direction, multiple lines of sub-pixels are divided into multiple units, signal source channels, corresponding to the line number of the sub-pixels in each unit, of the driving IC are connected to each line of sub-pixels in the corresponding unit in sequence, and a connection line of a next signal source channel is emptied so that the polarities of the sub-pixels of the same color in each line can be complementary with one another.

Description

technical field [0001] The invention relates to the technical field of LCD panels, in particular to a driving technology for LCD panels. Background technique [0002] A traditional liquid crystal panel (LCD) adopts the specification that one pixel has three sub-pixels, and the three sub-pixels respectively display the three primary colors of red (R), green (G) and blue (B). The display of the three primary colors is achieved by coating the three sub-pixels with color-resist coatings of different colors. Generally speaking, the color-resist coating will absorb 2 / 3 of the white backlight, so that the overall transmittance of the liquid crystal module is not high. . [0003] In response to this situation, a new 4-color sub-pixel specification has emerged, which can additionally display white (W) or other colors in addition to the three primary colors. If the sub-pixels are coated with transparent color resist, they can display white, and the brightness of the backlight is not...

AI Technical Summary

Problems solved by technology

The display of the three primary colors is achieved by coating the three sub-pixels with color-resist coatings of different colors. Generally speaking, the color-resist coating will absorb 2 / 3 of the white backlight, so that the overall transmittance of the liquid crystal module is not high.

[0016] The situation of the even-numbered rows such as the 2nd row and the 4th row is similar, but it becomes the common voltage V com The overall deviation in the negative direction will eventually cause the display colors of the second and fourth rows to deviate

[0020] The situation of the even-numbered rows such as the 2nd row and the 4th row is similar, but it becomes the common voltage V com The overall deviation towards the positive direction will eventually cause the display colors of the 2nd and 4th rows to deviate

[0025] Figure 5 Shows Figure 4 The LCD panel with the 4-color sub-pixel structure shown may have poor image display when the column is reversed

Images