LCD panel, display device and manufacturing and driving methods of LCD panel and display device

Abstract

The invention discloses an LCD panel, a display device and manufacturing and driving methods of the LCD panel and the display device, relates to the field of display, and can improve electric field distributional difference caused by manufacturing technology and liquid crystal distribution difference caused by pixel edge vertical electric field, and improve optical display features of a product. The LCD panel comprises an array substrate, a color membrane substrate and a liquid crystal layer arranged between the two substrates, wherein a first electrode and a second electrode are arranged on the array substrate on different layers, a third electrode and a fourth electrode are arranged on the color membrane substrate on different layers, the first electrode and the third electrode are oppositely arranged, the first electrode and the third electrode are slit-shaped electrodes, the second electrode and the fourth electrode are plate-shaped electrodes, the first electrode is arranged on the side of the second electrode, which is close to the liquid crystal layer. and the third electrode is arranged on the side of the fourth electrode, which is close to the liquid crystal layer.

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] Plane field mode refers to the parallel electric field that mainly drives the liquid crystal rotation orientation, including in-plane switching mode (In-Plane Switching, referred to as: IPS) and advanced super-dimensional field switching mode (Advanced-Super Dimensional 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 crystal and increase the...

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Problems solved by technology

[0004] The inventors have found at least the following problems in the prior art: in 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 exactly the same, 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. , affecting the liquid crystal distribution in the edge area of ​​the pixel, both of which will seriously affect the optical display characteristics of the product

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