Liquid crystal module drive control method and device, liquid crystal display

Abstract

The embodiment of the present application discloses a liquid crystal module drive control method and device, and a liquid crystal display. A specific implementation of the method includes: obtaining the display brightness ratio between the positive polarity picture and the negative polarity picture displayed by the liquid crystal module at the same brightness level; according to the display brightness ratio, adjusting the liquid crystal module to perform positive polarity driving Or the driving parameter amount during negative polarity driving, so that the display brightness of the positive polarity picture and the negative polarity picture displayed by the liquid crystal module at the same brightness level are the same. This embodiment can eliminate display defects such as flickering and improve display effect.

Description

technical field [0001] The present application relates to the field of display technology. More specifically, it relates to a liquid crystal module driving control method and device, and a liquid crystal display. Background technique [0002] Thin Film Transistor-Liquid Crystal Display (TFT-LCD) is widely used in televisions, mobile phones, monitors and other electronic products due to its advantages of stable picture, vivid image, radiation elimination, space saving and energy saving. [0003] Flicker (Flicker) refers to the discontinuous (unstable) feeling of the viewer to the periodic changes of light stimulation (such as brightness, etc.) under certain conditions. In the liquid crystal module, depending on the characteristics of the liquid crystal molecules, it cannot be in a constant voltage for a long time, otherwise its characteristics will be destroyed, so that the liquid crystal module cannot display normally. In order to solve the above problems, the prior art ad...

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Problems solved by technology

In the liquid crystal module that adopts the polarity inversion driving method, due to the leakage of pixels in the TFT, capacitive coupling, etc., at the same brightness level, the deflection voltage applied to the liquid crystal molecules during positive polarity driving and negative polarity driving may be inconsistent. , which in turn causes inconsistencies in the deflection of the liquid crystal molecules during positive and negative driving, making the brightness inconsistent between positive and negative driving.

In the prior art, in the manufacturing process of the liquid crystal module, the method of adjusting the common voltage Vcom with a fixed adjustment value according to experience is used to minimize the inconsistency of the deflection voltage during positive polarity driving and negative polarity driving. Due to the limitation of material characteristics and manufacturing process, this method has limited effect on improving the flicker phenomenon

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