Driving circuit and a method, display panel and display device

Abstract

The invention relates to a driving circuit and a method, a display panel and a display device. The drive circuit includes a control module, a first set of gamma correction modules, a second set of gamma correction modules, a third set of gamma correction modules and a plurality of data driving modules. The control module generates a data signal and a control signal according to the input signal, afirst set of gamma correction modules, a second set of gamma correction modules, a third set of gamma correction modules respectively provides a reference point for the output voltage value of the data driving module. At a first gamma voltage, the second gamma voltage and the third gamma voltage are used as reference points to apply the gray scale voltage to the corresponding first pixel electrode. The second pixel electrode and the third pixel electrode enable the liquid crystal display module to display an image, and the voltage red light transmittance curve, the voltage green light transmittance curve and the voltage blue light transmittance curve overlap and coincide, thereby enabling the white points of each gray scale of the display image to be balanced and coincide, and the displayimage has a lifelike color performance.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a driving circuit and method, a display panel and a display device. Background technique [0002] With the rapid development of multimedia technology, display devices have also made great progress, and user requirements have become higher and higher. Therefore, liquid crystal panels have higher and higher requirements for the consistency of color accuracy of each gray scale, especially for each gray scale. It is hoped that the white point can remain the same, so that consumers can truly enjoy lifelike color performance when watching movies. [0003] However, in the color films of general displays, the thickness of the blue film is the largest, followed by the thickness of the green film, and then the thickness of the red film, and the gap between the liquid crystal cells is defined / monitored / measured by the thickness of the green film, so There is a difference between t...

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Problems solved by technology

[0004] Based on this, it is necessary to provide a driving circuit and method, a display panel and a display device to solve the R / G / B voltage penetration due to the difference between the defined / monitored / measured liquid crystal layer gap and the actual liquid crystal layer gap. The rate curves are different, which makes the white point of each gray scale inconsistent.

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