A kind of white light handwriting, reflective enhancement type liquid crystal writing board and preparation method thereof

Abstract

The invention discloses a white light handwriting, reflection enhanced type liquid crystal writing board and a preparation method thereof. The white light writing and reflection-enhanced liquid crystal writing board include, from top to bottom: a polyethylene terephthalate (PET) transparent film coated with silver or copper metal grids on one side, and a medium containing loaded chiral compounds. Liquid crystal thin layer of hole material, PET non-transparent black film coated with silver or copper metal mesh on one side. In the white light brightening type liquid crystal writing board and the preparation method thereof, since the mesoporous material loaded with the chiral compound is introduced into the liquid crystal system, the chiral compound presents a gradient or gradient in the liquid crystal system by controlling the diffusion of the chiral compound in the mesopores. The uneven distribution causes the gradient or uneven distribution of the pitch of the liquid crystal system, and then through ultraviolet polymerization to anchor the pitch, so that the reflected wave width of the liquid crystal system is greatly expanded, covering the entire visible light region, making the writing on the writing board white, and It can greatly improve key technical indicators such as brightness and contrast.

Description

A kind of white light writing, reflection enhanced liquid crystal writing board and preparation method thereof technical field The invention belongs to the field of liquid crystal display, particularly a kind of white light writing, reflection-enhanced liquid crystal tablet and the same Preparation. Background technique In recent years, liquid crystal writing boards have been widely used due to their advantages such as high reflective brightness, high contrast, low power consumption, and environmental protection. It has begun to gradually replace the traditional writing board. [0003] At present, most of the liquid crystal tablets produced by manufacturers are of the reflective green light type, that is, the writing is green. of this type The reflection wave width of the thin liquid crystal layer of the LCD tablet is narrow, which greatly limits the contrast of the LCD tablet and the brightness of the writing. This also hinders the application field and scope of ap...

AI Technical Summary

Problems solved by technology

The reflected wave width of the liquid crystal thin layer of this type of liquid crystal writing board is narrow, which greatly limits the contrast of the liquid crystal writing board and the improvement of the brightness of writing, which also hinders the application field and application range of the liquid crystal writing board to a certain extent.

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