Liquid crystal writing membrane and preparation method and device thereof

Abstract

The invention discloses a liquid crystal writing membrane. The liquid crystal writing membrane comprises a first base membrane, a composite layer and a second base membrane which are sequentially arranged, wherein the first base membrane comprises a first substrate layer and a first electrode layer which are sequentially arranged; the second base membrane is composed of a second electrode layer and a second substrate layer which are sequentially arranged; the composite layer is arranged between the first electrode layer and the second electrode layer; the first substrate layer is a writing surface; the composite layer comprises a first mixed layer, and one side surface of the first mixed layer is adhered to the first electrode layer; the first mixed layer comprises liquid crystal molecules and high-polymer materials, and the content of the high-polymer materials decreases gradually from the side away from the first electrode layer to the side close to the first electrode layer. The liquid crystal writing membrane can significantly improve the light intensity. Besides, the invention also discloses a preparation method and device of the liquid crystal writing membrane.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a liquid crystal handwriting film, a preparation method and a preparation device of the liquid crystal handwriting film. Background technique [0002] Liquid crystal handwriting film generally includes a first base layer, a first electrode layer, a liquid crystal layer, a second electrode layer and a second base layer arranged in sequence, wherein the liquid crystal layer includes polymer materials and liquid crystal molecules, and the polymer materials are cross-linked to form a network The lattice structure, which positions the liquid crystal molecules in the grid, is also used for bonding between layers. When the liquid crystal handwriting film is displayed, it is necessary for the liquid crystal molecules to rotate to the P state (planar texture state), thereby reflecting light of a specific wavelength. In the prior art, the liquid crystal layer is formed after mixing th...

AI Technical Summary

Problems solved by technology

When the liquid crystal handwriting film is displayed, it is necessary for the liquid crystal molecules to rotate to the P state (planar texture state), thereby reflecting light of a specific wavelength. In the prior art, the liquid crystal layer is formed after mixing the polymer monomer with the liquid crystal molecules. After curing, the grid structure is relatively dense, resulting in poor freedom of some liquid crystal molecules. These liquid crystal molecules cannot smoothly rotate to the required state, and cannot smoothly reflect light, resulting in low brightness of the liquid crystal handwriting film.

Images