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Transparent optical glue film with dispersed liquid crystals and preparation method

A technology for dispersing liquid crystals and optical adhesives, applied in adhesives, epoxy resin adhesives, film/sheet adhesives, etc., can solve the problems of complex devices and high production costs, and achieve the effect of simple methods and low costs

Active Publication Date: 2015-11-11
ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In summary, when the pressure sensing function is realized by adding a force sensor, the force sensor requires additional conductive circuit wiring, resulting in a more complicated device and higher production costs

Method used

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  • Transparent optical glue film with dispersed liquid crystals and preparation method
  • Transparent optical glue film with dispersed liquid crystals and preparation method

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Experimental program
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Embodiment 1

[0035] A transparent optical adhesive film with dispersed liquid crystals, comprising an optical adhesive layer formed by curing optical adhesive, a heavy release layer arranged on the upper surface of the optical adhesive layer, and a light release layer arranged on the lower surface of the optical adhesive layer , in terms of mass percentage, the optical glue contains the following substances: prepolymer glue, 70%; liquid crystal microdroplets, 15%; additives, 15%; wherein, the liquid crystal microdroplets are evenly dispersed in the mixture of prepolymer glue and additives.

[0036] Wherein, the additive is a mixture of curing agent, antioxidant, coupling agent, plasticizer and modifier. When the curing agent is a photoinitiator, the optical adhesive layer is a light-curable optical adhesive layer. In this embodiment, the photoinitiator is benzoin and its derivatives. When the curing agent is a thermosetting agent, and when the thermosetting agent is aliphatic polyamine or...

Embodiment 2

[0046]A transparent optical adhesive film with dispersed liquid crystals, comprising an optical adhesive layer formed by curing optical adhesive, a heavy release layer arranged on the upper surface of the optical adhesive layer, and a light release layer arranged on the lower surface of the optical adhesive layer According to mass percentage, the optical glue contains the following substances: prepolymer glue, 75%; liquid crystal microdroplets, 5%; additives, 20%; wherein, liquid crystal microdroplets are evenly dispersed in the mixture of prepolymer glue and additives.

[0047] Wherein, the additive is a mixture of curing agent, antioxidant, coupling agent, plasticizer and modifier. When the curing agent is a photoinitiator, the optical adhesive layer is a light-curable optical adhesive layer. In this embodiment, the photoinitiator is benzil and its derivatives. When the curing agent is a thermosetting agent, and when the thermosetting agent is aliphatic polyamine or triethy...

Embodiment 3

[0057] A transparent optical adhesive film with dispersed liquid crystals, comprising an optical adhesive layer formed by curing optical adhesive, a heavy release layer arranged on the upper surface of the optical adhesive layer, and a light release layer arranged on the lower surface of the optical adhesive layer , in terms of mass percentage, the optical glue contains the following substances: prepolymer glue, 80%; liquid crystal microdroplets, 19.5%; additives, 0.5%; wherein, liquid crystal microdroplets are evenly dispersed in the mixture of prepolymer glue and additives.

[0058] Wherein, the additive is a mixture of curing agent, antioxidant, coupling agent, plasticizer and modifier. When the curing agent is a photoinitiator, the optical adhesive layer is a light-curable optical adhesive layer. In this embodiment, the photoinitiator is an acetophenone derivative. When the curing agent is a thermosetting agent, and when the thermosetting agent is aliphatic polyamine or t...

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PUM

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Abstract

The invention discloses a transparent optical glue film with dispersed liquid crystals and a preparation method. The optical glue film comprises an optical glue layer cured by optical glue, a heavy release layer arranged on the upper part of the optical glue layer and a light release layer arranged on the lower surface of the optical glue layer. The optical glue comprises the following substances in percentage by mass: 70-98% of prepolymer glue, 0.5-30% of liquid crystal microdroplets and 0.5-25% of an additive, wherein the liquid crystal microdroplets are dispersed in a mixture of the prepolymer and the additive. The transparent optical glue film can realize pressure induction and is low in cost, and extra sensors and a circuit structure required by the sensors can be prevented from being reused, so that the structure of a touch screen using the optical glue film is greatly simplified, and the cost is lowered.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a transparent optical adhesive film with dispersed liquid crystals and a preparation method. Background technique [0002] Due to its advantages of ease of operation and flexibility, the touch screen has become the main means of human-computer interaction for personal mobile communication devices and comprehensive information terminals (such as mobile phones, tablet computers and super notebook computers). Compared with resistive touch screens and other types of touch screens, capacitive touch screens are gradually being widely used in smart terminals due to their advantages of low cost, simple structure, and durability. However, the existing capacitive touch screen only senses the touch position and operation on the plane where the screen body is located, and it is difficult to support touch parameters brought about by changes in pressure applied vertically to the screen body ...

Claims

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Application Information

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IPC IPC(8): C09J7/00C09J133/08C09J163/00C09J183/04C09J167/06C09J175/04C09J11/00
Inventor 唐彬孟锴钭忠尚许鹏徐觅李辉
Owner ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD