Composite substrate, liquid crystal display screen, and manufacturing method

Abstract

The invention discloses a liquid crystal display screen, a composite substrate, and a manufacturing method. The composite substrate comprises a substrate, a carbon nano-tube layer, and an optical alignment base material. The carbon nano-tube layer is bonded on the surface of the substrate through the optical alignment base material. The carbon nano-tube layer comprises a plurality of carbon nano tubes extending along a same direction. Since the extension directions of the plurality of carbon nano tubes in the carbon nano-tube layer are the same, the carbon nano tubes arranged in parallel would form a plurality of grooves arranged in parallel. The grooves can be used for initial alignment for liquid crystal molecules, that is, the carbon nano-tube layer can be used as an alignment layer. The carbon nano-tubes have polarization effect, and have transmission effect on light whose polarization direction is vertical to the extension direction of the carbon nano tubes, and have absorption effect on light whose polarization direction is parallel to the extension direction of the carbon nano tubes, that is, the carbon nano-tube layer can be used as a polarization layer. Thus, the composite substrate can be used as an alignment layer, and also can be used as the polarization layer. Therefore, the composite substrate is used as a TFT array substrate, and is simple in structure and low in cost.

Description

technical field [0001] The technical field of display devices of the present invention, more specifically, relates to a liquid crystal display screen, a composite substrate and a manufacturing method. Background technique [0002] Liquid crystal display has the advantages of ultra-thin, large-size screen display, low power consumption, no radiation, and high resolution. It is one of the mainstream displays today and is widely used in various electronic products. It is indispensable for people's daily life and work. less tools. [0003] refer to figure 1 , figure 1 It is a structural schematic diagram of an existing liquid crystal display. The liquid crystal display includes: a TFT array substrate 11 and a color filter substrate 12 oppositely arranged; a liquid crystal layer 13 arranged between the TFT array substrate 11 and the color filter substrate 12 . [0004] In the existing liquid crystal display, in order to ensure normal image display, the TFT array substrate 11 ...

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Problems solved by technology

[0005] It can be seen that the existing TFT array substrate needs two separate structures as the alignment layer and the polarizer respectively, and the structure is complex and the production cost is high.

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