Liquid crystal handwriting board and preparation method thereof

Abstract

The invention discloses a liquid crystal handwriting board and a preparation method thereof. The liquid crystal handwriting boardsequentially comprises a first substrate, a first conducting layer, a liquid crystal polymer layer, a second conducting layer and a second substrate, and is characterized in that: a light-resistant component capable of resisting specific wavelengths is arranged in the first substrate, and the first conducting layer, the second conducting layer and the second substrate are transparent. According to the liquid crystal handwriting board, the first substrate and the second substrate are both made of a transparent material, the light-resistant component is added into the first substrate, and in the preparation process, a conventional UV curing mode is changed, and ultraviolet radiation is carried out from the side of the second substrate, so that the UV curing step is not influenced by the light-resistant component in the first substrate, the UV curing time of the liquid crystal polymer layer is not prolonged, and the prepared liquid crystal handwriting board has an anti-UV effect. In addition, the first substrate and the second substrate are both made of the transparent material, the dust point of the material can be controlled, and the product quality and the production yield are improved.

Description

【Technical field】 [0001] The invention relates to a liquid crystal handwriting board, in particular to an anti-ultraviolet liquid crystal handwriting board and a preparation method thereof. 【Background technique】 [0002] A liquid crystal tablet, also known as a cholesteric liquid crystal tablet, generally includes a first substrate 1 , a first conductive layer 2 , a liquid crystal polymer layer 3 , a second conductive layer 4 and a second substrate 5 . Wherein, the liquid crystal polymer layer contains a bistable cholesteric liquid crystal, which can present a transparent state and a color reflection state. When there is no pressure on the tablet, the bistable cholesteric liquid crystal appears transparent. When writing on the handwriting board, the bistable cholesteric liquid crystal flips from the transparent state to the color reflection state, so that the color can be reflected and the handwriting can be displayed. In order to show handwriting, the first substrate fac...

AI Technical Summary

Problems solved by technology

However, the formation of the liquid crystal polymer layer usually requires ultraviolet curing (UV curing). Adding light-resistant components to the liquid crystal polymer layer will inevitably lead to slow polymerization reaction and greatly prolong the curing time, which is not conducive to industrial production and cost control.

Moreover, the anti-light component is added to the liquid crystal polymer layer, which will also affect the writing effect.

[0008] In addition, in the prior art, because the second substrate is usually dark, limited by the material, there are often many dust spots in the large-sized LCD tablet, resulting in low quality and low yield

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