Making method for key light guide plate

Abstract

The present invention provides a method for preparing a light conducting plate which is provided with a plurality of light conducting particles. The method comprises the following procedures: firstly preparing the mould which is provided with concave holes for molding a plurality of light conducing particles, decanting the mixture mixed by ultraviolet-curing resin and glass micro-bead into the mould, pasting the carrier on the mixture, rolling the surface of the carrier with a rolling instrument to uniformly filling the mixture in the mould, at the same time discharging the air among the mould, the carrier and the mixture, and at last when the ultraviolet-curing resin is executed with ultraviolet irradiation, solidifying the ultraviolet-curing resin on the carrier. Then the solidified resin is taken out from the mould thereby forming the light conducting plate with a plurality of light conducting particles.

Description

technical field [0001] The invention relates to a keypad structure, in particular to a manufacturing method of a light guide plate. Background technique [0002] The button structure is one of the main input devices of electronic devices. Each button on the button structure usually has corresponding numbers, characters, phonetic symbols, radicals of input methods and various functional graphics, etc., so that users can input data, Or perform various functions of the electronic device. Therefore, the key structure is an extremely important input device for electronic devices. [0003] Since the electronic device is in a well-lit environment, the user can clearly see the position of each button, and problems such as pressing the wrong button will not occur during operation and pressing. If there is no light or insufficient light, it is difficult for the user to operate the buttons on the electronic device. Therefore, the inner layer of the button structure is equipped with ...

AI Technical Summary

Problems solved by technology

Because the traditional light guide plate with light guide particles is produced by inkjet technology, the resin injected by the inkjet head is directly molded on the carrier to form light guide particles. Since the inkjet head must move back and forth in the y-axis The resin can be sprayed on the carrier only when it is moving, which will cause slow production efficiency

[0006] The other is made by imprinting, which is rolling with a roller. The surface of the roller has a plurality of convex particles of light-guiding particles, and the roller is rolled on the surface or back of a flexible carrier. When the carrier is deformed, it will cause the carrier to deform. At this time, the carrier itself will rebound an elastic force in the same direction. Therefore, when rolling the carrier, it is necessary to adjust the pressing force of the roller according to the elastic force of the material of the carrier itself after deformation. Inaccurate adjustment of the pressing force of the roller will lead to defects in the finished light guide particles, which will not be able to gather and refract light on the buttons during use, causing a major problem in production

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