Display driving method, circuit and display panel

A display driver and display panel technology, which is applied to static indicators, instruments, etc., can solve problems such as brightness differences and affect display effects, and achieve the effects of small brightness differences, improved display brightness, and improved charging efficiency

Pending Publication Date: 2022-08-05
CHONGQING HKC OPTOELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present application provides a display driving method, a circuit and a display panel to solve the problem in the related art that there is a brightness difference between adjacent pixel rows in the display panel, and bright and dark lines appear on the display panel, which affects the display effect.

Method used

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  • Display driving method, circuit and display panel
  • Display driving method, circuit and display panel
  • Display driving method, circuit and display panel

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Experimental program
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Embodiment 1

[0034] In order to solve the problem in the related art that there is a difference in brightness between adjacent pixel rows in the display panel, and the phenomenon of bright and dark lines appears on the display panel, which affects the display effect, please refer to figure 1 , figure 1 A schematic diagram of a display driving method provided in an embodiment of the present application, the method includes:

[0035] S101, determining a target pixel row from a plurality of the pixel rows, and the target pixel row has a pixel row whose electrode polarity is opposite to the electrode polarity of the previous pixel row;

[0036] S102, acquiring the charging time of the target pixel row, and acquiring the pre-charging advance duration, where the charging time of the target pixel row is the time when the scan line corresponding to the target pixel row starts to output a charging square wave signal;

[0037] S103. Precharge the target pixel row according to the charging time of t...

Embodiment 2

[0061] This embodiment also provides a more specific example to describe the display driving method. In the display driving method, the charging of the target pixel row is improved by taking the even-numbered pixel row as the target pixel row and then precharging the target pixel row. efficiency, reduce the brightness difference between the even-numbered pixel row and the odd-numbered pixel row, and improve the display effect, specifically:

[0062] For example, as image 3 shown, image 3 It is the driving sequence diagram of the present invention, the adjacent scanning signal waveforms are different; the charging time of each row of pixels is T, for the odd row scanning lines corresponding to the odd pixel row, the scanning signal is a single square wave, and for the even row scanning lines, the scanning signal In addition to the original square wave, there is another square wave that is turned on 3T ahead of time (except the 2nd row), because the data signal, the square wa...

Embodiment 3

[0068] This embodiment also provides a more specific example to describe the display driving method. In the display driving method, the even-numbered pixel row is precharged by taking the even-numbered pixel row as the target pixel row, and then the charging of the even-numbered pixel row is improved. After the efficiency, further, the brightness of each sub-pixel of the even-numbered pixel row is increased by increasing the charging duration of the even-numbered pixel row, and / or the charging duration of the odd-numbered pixel row is reduced to reduce the brightness of each sub-pixel of the odd-numbered pixel row, thereby reducing the even-numbered pixel row. The brightness difference between the pixel row and the odd pixel row improves the uniformity of the display panel, specifically:

[0069] For example, as Figure 7 As shown, the normal scanning time width of the gate signal is H0, the width of the gate scanning signal corresponding to the pixel in the 2n+1th row is set ...

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Abstract

The invention relates to a display driving method and circuit and a display panel, and the method comprises the steps: determining a target pixel row from a plurality of pixel rows, wherein the target pixel row is a pixel row of which the electrode polarity is opposite to that of a previous pixel row; the charging time of a target pixel row is obtained, the pre-charging advance duration is obtained, and the charging time of the target pixel row is the time when the scanning line corresponding to the target pixel row starts to output a charging square wave signal; pre-charging the target pixel row according to the charging time of the target pixel row and the pre-charging advance duration; by pre-charging the target pixel row, the charging efficiency when the target pixel row is charged is improved, the display brightness of each sub-pixel in the target pixel row is further improved, the brightness difference between the target pixel row and the non-target pixel row becomes small, and the problem that the brightness difference between adjacent pixel rows in the display panel is large and the display effect is poor is solved. And bright and dark lines of the display panel are avoided.

Description

technical field [0001] The present application relates to the technical field of display panels, and in particular, to a display driving method, a circuit and a display panel. Background technique [0002] In the related art, the most common pixel arrangement in the effective display area of ​​the liquid crystal display panel is the 1G1D strip design, that is, there is a pixel arrangement at the intersection of each row of scan lines and each column of data lines, and the same column of pixels is located in the same data line. side and the data line is charged. Since the coupling capacitance (Cpd) between the data line and the pixel electrode is large, when the data line is charged, the panel has serious V_crosstalk (vertical crosstalk), which affects the display quality of the panel. [0003] In order to improve the vertical crosstalk problem of this architecture, the general data line adopts the 1+2line polarity inversion method, +--++--..., this inversion method can effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3611G09G2320/0233
Inventor 杨艳娜康报虹
Owner CHONGQING HKC OPTOELECTRONICS TECH CO LTD
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