Data voltage compensation method of display panel, display panel and display device
A display panel, data voltage technology, applied in static indicators, instruments, etc., can solve problems such as excessive positive and negative data voltage voltage difference, excessive liquid crystal capacitor voltage difference, and aggravating common electrode voltage offset, etc. Achieve the effect of avoiding excessive voltage difference and avoiding color deviation
Active Publication Date: 2022-06-07
HKC CORP LTD
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[0002] When the TFT-LCD (Thin Film Transistor-Liquid Crystal Display, thin film transistor-liquid crystal display) display is displayed, if the difference in the number of positive and negative data voltages applied to the pixel is too large or the voltage difference between the positive and negative data voltages is too large Large, it will intensify the capacitive coupling effect between the data line and the common electrode, and increase the offset of the common electrode voltage, resulting in an excessive voltage difference between the liquid crystal capacitance of the pixel, resulting in poor display such as color deviation (color shift)
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[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present application.
[0025] In the description of this application, unless otherwise expressly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or it can be The indirect connection through an intermediate medium can also be the internal communication between the two components; it can be a communication con...
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The invention provides a data voltage compensation method of a display panel. The data voltage compensation method comprises the following steps: acquiring preset gray-scale values of all sub-pixels of a target pixel group; adding the preset gray-scale values of all the sub-pixels of the target pixel group to obtain a first gray-scale value sum; when it is determined that the first gray-scale value sum meets a first preset condition, adding preset gray-scale values of all sub-pixels of at least one pixel group of the target pixel group to obtain at least one second gray-scale value sum; when it is determined that a certain second gray-scale value meets a second preset condition, target sub-pixels needing to be compensated in the corresponding pixel groups are determined; determining a first target gray-scale value of the target sub-pixel according to a gray-scale value compensation table; and determining a compensated target data voltage according to the first target gray-scale value of the target sub-pixel. The invention further provides a display panel and a display device. According to the data voltage compensation method of the display panel, the data voltage applied to the target sub-pixel is compensated, so that poor display such as color cast can be avoided.
Description
technical field [0001] The present application relates to the field of display technology, and in particular, to a data voltage compensation method for a display panel, a display panel and a display device. Background technique [0002] When the TFT-LCD (Thin Film Transistor-Liquid Crystal Display, thin film transistor-liquid crystal display) display is displayed, if the number of positive and negative data voltages applied to the pixels is too large or the voltage difference between the positive and negative data voltages is too large. If it is too large, the capacitive coupling effect between the data line and the common electrode will be aggravated, and the offset of the common electrode voltage will be aggravated, resulting in an excessively large voltage difference between the liquid crystal capacitors of the pixels, resulting in poor display such as color deviation (color shift). SUMMARY OF THE INVENTION [0003] In order to solve the above technical problems, the pr...
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IPC IPC(8): G09G3/36
CPCG09G3/36G09G2320/0242
Inventor 胡洋李建雷袁海江
Owner HKC CORP LTD