Liquid crystal panel, display device, manufacturing and driving method thereof

Abstract

A liquid crystal panel, a display device, and a manufacturing method and a driving method thereof are provided. The liquid crystal panel comprises an array substrate (20), a color filter substrate (10), and a liquid crystal layer (30) disposed between two substrates; the array substrate (20) is provided with a first electrode (21) and a second electrode (22) thereon in different layers, the color filter substrate (10) is provided with a third electrode (12) and a fourth electrode (11) thereon in different layers, the first electrode (21) and the third electrode (22) are disposed opposite to each other, the first electrode (21) and the third electrode (12) are slit-like electrodes, the second electrode (22) and the fourth electrode (11) are plate-like electrodes, the first electrode (21) and the third electrode (12) are respectively located on sides close to the liquid crystal layer of the second electrode (22) and the fourth electrode (11). The driving method of a display device comprises: with regard to each frame of image, calculating and acquiring an average value of pixel voltages applied to pixel electrodes when the frame of image is shown, and applying the average value to the third electrode (12) or the fourth electrode (11) of the color filter substrate (10); or, in any one pixel region, the third electrode (12) is applied with a same signal as the first electrode (11), and the fourth electrode (11) is applied with a same signal as the second electrode (22).

Description

technical field [0001] The invention relates to the display field, in particular to a liquid crystal panel, a display device and a manufacturing and driving method thereof. Background technique [0002] The planar field mode refers to the parallel electric field that mainly drives the rotation orientation of the liquid crystal, including the in-plane switching mode (In-Plane Switching, referred to as: IPS) and the advanced super-dimensional field switching mode (Advanced-SuperDimensional Switching, referred to as: ADS). The ADS mode forms a multi-dimensional electric field through the parallel electric field generated by the edge of the pixel electrode or the common electrode in the same plane and the longitudinal electric field generated between the pixel electrode and the common electrode, so that the liquid crystal molecules in the liquid crystal cell can be rotated and converted, thereby improving the plane alignment system. Improve the working efficiency of liquid cryst...

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Problems solved by technology

[0004] The inventors found that the prior art has at least the following problems: During the production process of the array substrate, on a glass substrate (finally made into an array substrate, the array substrate and the color filter substrate can be divided into multiple independent display panels after boxing) Although the characteristic parameters of each layer (such as layer thickness, line width, etc.) There is a large difference between the corner area and other areas, and the distribution is poor

One of the main manifestations of the above-mentioned poor distribution is that on the same glass substrate, the sizes of the first electrodes 21 (strip electrodes) are difficult to be completely consistent, which will result in different display panels (corresponding to different regions of the same glass substrate) There are differences in the electric field distribution, and the circuit adjustment codes used by different display panels are consistent for economical and mass production, resulting in differences in the transmittance at the center and corner areas of the same glass substrate, reflected in the product The above shows that different display panels have uneven changes in transmittance; on the other hand, due to the end difference in height between the second electrode and the first electrode, there is inevitably a vertical electric field between the two layers of electrodes in the liquid crystal cell. , affect the liquid crystal distribution in the edge area of ​​the pixel, the above two aspects will seriously affect the optical display characteristics of the product

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