Array substrate, manufacturing method of array substrate, liquid crystal display device and driving method of liquid crystal display device

Abstract

The invention discloses an array substrate. The array substrate comprises a flat layer, a first insulating layer, a common electrode, a second insulating layer and a pixel electrode, wherein the flatlayer, the first insulating layer, the common electrode, the second insulating layer and the pixel electrode are sequentially arranged on the array substrate, the pixel electrode is of a comb structure with a plurality of pixel electrode strips and a plurality of slits which are alternately arranged; the first insulating layer is of a patterned structure and comprises a plurality of insulating protrusions which correspond to the slits; the insulating protrusions extend in the same direction with the pixel electrode strips and are alternately arranged in a pixel unit; and the common electrode forms a plurality of electrode convex parts above the insulating protrusions and a plurality of electrode flat parts below the pixel electrode strips. The invention further discloses a manufacturing method of the array substrate. The invention further discloses a liquid crystal display device, the liquid crystal display device comprises the array substrate, a color film substrate and a liquid crystal layer positioned between the color film substrate and the array substrate. The invention further discloses a driving method of the liquid crystal display device.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to an array substrate and a manufacturing method, a liquid crystal display device and a driving method. Background technique [0002] Liquid crystal display (LCD) has the advantages of good picture quality, small size, light weight, low driving voltage, low power consumption, no radiation and relatively low manufacturing cost, and it occupies a dominant position in the field of flat panel display. [0003] With the continuous advancement of liquid crystal display technology, the viewing angle of the display has been expanded from about 120° to more than 160°. While enjoying the visual experience brought by the large viewing angle, people also hope to effectively protect commercial secrets and personal privacy. Avoid commercial loss or embarrassment caused by information leakage on the screen. Therefore, in addition to wide viewing angles, there is also a need for dis...

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Problems solved by technology

[0006] In order to overcome the shortcomings and deficiencies existing in the prior art, the purpose of the present invention is to provide an array substrate and its manufacturing method, a liquid crystal display device and its driving method, so as to solve the problem of light leakage and reduced contrast in the narrow viewing angle dark state

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