A kind of modified spacer powder and its preparation method and a kind of liquid crystal tablet

A modified liquid crystal layer technology, applied in liquid crystal materials, chemical instruments and methods, nonlinear optics, etc., can solve problems such as handwriting burrs, uneven force on spacer powder, poor smoothness, etc., and achieve good compatibility , Improve the effect of smoothness
CN111574739BActive Publication Date: 2021-02-26SHENZHEN POLICRAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN POLICRAL TECH CO LTD
Publication Date
2021-02-26

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Abstract

The invention provides modified spacer powder, a preparation method thereof and a liquid crystal handwriting board, and belongs to the technical field of liquid crystal materials. The modified spacerpowder provided by the invention is photoinitiator grafted spacer powder, a photoinitiator is benzoin methyl ether or Irgacure 651, and the spacer powder is polystyrene microspheres or polymethyl methacrylate microspheres; and the photoinitiator is connected with the spacer powder through a covalent bond. The modified spacer powder provided by the invention has good compatibility with liquid crystal in liquid crystal layer feed liquid, and the smoothness of handwriting of the liquid crystal handwriting board is improved. Moreover, the photoinitiator grafted on the modified spacer powder can initiate polymerization of polymeric monomers in the liquid crystal layer feed liquid, and finally, the spacer powder can be inserted into a polymer network, so that the polymer network close to the spacer powder microspheres is dense. The purpose of controlling the density of polymer networks in the liquid crystal handwriting board is achieved by controlling the amount of the photoinitiator graftedon the spacer powder microspheres, and then the handwriting thickness of the handwriting board is controlled.
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Description

technical field

[0001] The invention relates to the technical field of liquid crystal materials, in particular to a modified spacer powder, a preparation method thereof, and a liquid crystal tablet. Background technique

[0002] Existing liquid crystal tablet, the spacer powder that adopts is inorganic material or organic polymer material, and its structure is as follows: figure 1 as shown, figure 1 It is the topography diagram of the microspherical spacer powder used in the existing liquid crystal writing board; it only plays the role of separating the upper and lower substrates of the writing board. Such spacer powder is not compatible with the liquid crystal and polymer network in the liquid crystal tablet, such as figure 2 and image 3 as shown, figure 2 It is a schematic diagram of the structure of the existing liquid crystal tablet (before the monomer is not polymerized), image 3 It is a structural schematic diagram of an existing liquid crystal tablet (after m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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