A kind of driving method and its driving ic for lcd panel

Abstract

The object of the present invention is to provide a driving method for an LCD panel based on a 2n primary color sub-pixel structure and a driving IC thereof. Wherein, the sub-pixel array of the LCD panel is M*N and the LCD panel is based on a sub-pixel structure of 2n primary colors; the driving method utilizes a driver IC of an LCD panel based on a 3-primary color sub-pixel structure, and the driver IC's The number of signal source channels is at least N; in the row direction, the sub-pixels of an integer multiple of 2n are used as a unit, and for the sub-pixels of the same integer multiple of 2n consecutive units in every two consecutive units, 2 columns are used as a sub-pixel unit, and cross-connect the driver IC with the 2 signal source channels corresponding to each subunit to the 2 columns of subpixels in the corresponding subunit, so that the polarities of the subpixels of the same color in each row are complementary. Compared with the prior art, the driving method of the present invention makes the polarities of the sub-pixels of each color complementary in the row direction, so that there will be no shift of the common voltage to avoid color display deviation.

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

[0021] As can be seen, Figure 3a and the example shown in b with Figure 2a It is the same type as the example shown in b, but Figure 3a and b are more serious, so that it will also damage the use of terminals using this arrangement of liquid crystal panels

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