Liquid crystal display panel and making method thereof

Abstract

The invention provides a liquid crystal display panel and a making method thereof. Graphene is adopted to replace indium tin oxide to make common electrodes and pixel electrodes, by means of the advantages of graphene that the transparency is high, the conductivity property is good, the flexibility is high and the production cost is low, the display performance of the liquid crystal display penal is improved, and the production cost of the liquid crystal display panel is reduced; a vertical alignment agent and polymeric monomers are utilized for conducting alignment on liquid crystal molecules, alignment film is omitted, and the liquid crystal alignment process is simplified; further, a graphene oxide layer is arranged on the surface of a graphene layer, the capacity that the vertical alignment agent anchors a substrate can be improved, and the liquid crystal alignment effect is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a liquid crystal display panel and a manufacturing method thereof. Background technique [0002] With the development of display technology, liquid crystal displays (Liquid Crystal Display, LCD) and other flat display devices are widely used in mobile phones, televisions, personal Various consumer electronic products such as digital assistants, digital cameras, notebook computers, and desktop computers have become the mainstream of display devices. [0003] Most of the liquid crystal display devices currently on the market are backlight liquid crystal displays, which include a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to place liquid crystal molecules between two parallel glass substrates. There are many vertical and horizontal small wires between the two glass substrates. The direction of the liquid crysta...

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Problems solved by technology

[0006] In addition, on the CF substrate and the TFT substrate, there is also a thin film respectively, whose main function is to arrange the liquid crystal molecules in a certain direction. We call it an alignment film. The material of the alignment film mainly includes rubbing alignment type PI (polymer imide) materials and photo-aligned PI materials, however, no matter which PI material has its own shortcomings, first of all, frictional alignment is likely to cause problems such as dust particles, static electricity residue, and brush marks, thereby reducing the process yield. Although alignment materials can avoid these problems, due to limited material properties, poor heat resistance and aging resistance, and weak ability to anchor liquid crystal molecules, thus affecting the quality of the panel; secondly, the PI material itself has high polarity. High water absorption, easy to deteriorate during storage and transportation, resulting in uneven alignment, and PI materials are expensive, and the process of film formation on TFT-LCD is also relatively complicated, resulting in increased panel costs

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