Display device using light storage material and method of manufacturing the same

Abstract

A display device that uses a light-storage material, has high luminance and a long luminescence time, and emits light uniformly from the entire display panel. Milky white filling material (22) and powdery light-storing substance (21) are mixed and filled in the space formed by the baffle plate with predetermined thickness sandwiched by the display panel (11) and the reflection plate (13). The light emitted by each particle of the light-storing substance (21) is scattered in the milky white filling material (22), so that high-brightness light can be uniformly emitted from the entire display panel (11). In addition, since the viscosity of the filling material (22) can be used to manufacture the light-storage substance (21) evenly dispersed, it can be manufactured using a thick baffle (12), and a large amount of light-storage substance (21) can be filled, so it can Provided is a display device with high brightness and long lighting time.

Description

technical field [0001] The present invention relates to a display device using a light-storage substance and a method of manufacturing the same. Background technique [0002] Display devices, signs, and the like, which can convey clear information to the viewer even at night or in a dark place, are used in various applications. Among them, light-storage materials that receive light irradiation and store light energy for self-luminescence do not require a power source, and are particularly attractive from the viewpoint of energy saving, and practical use of display devices and signs using the light-storage materials is progressing. The following aspects have been developed as display devices and the like using such light-storage materials. [0003] The invention described in Patent Document 1 is an evacuation guide sign in which a sine plate obtained by mixing a transparent resin such as ABS resin, AS resin, and styrene resin into a desired shape is embedded in an opaque res...

AI Technical Summary

Problems solved by technology

Therefore, the problem that it exists is that the high-brightness evacuation guidance sign cannot be obtained by adding light-storing substances

[0012] In addition, the light-storage substance is mixed into the transparent resin, and the transparent resin cannot scatter the light emitted from the light-storage substance. Therefore, there is a problem that the entire evacuation guidance sign cannot be uniformly illuminated.

Therefore, it is necessary to form a groove of a predetermined display shape, but since it is difficult to process the groove of the metal plate, there is a problem that it is difficult to easily manufacture a desired display panel.

[0015] In Patent Document 3, only the light-storage particle preparation and glass shavings are covered on the frame material, so the light-storage particle preparation cannot be uniformly dispersed, and there is a problem that the light emitted from the display surface becomes sparse.

[0016] In addition, since there is no filler covering the light-storage particle preparation on the frame material, the light emitted from the light-storage particle preparation cannot be scattered, so there is a problem that the entire display surface cannot emit light uniformly.

Therefore, since it is necessary to make a thinness of about 1 mm so that the stretchability and strength of the silicone rubber are not damaged, it is relatively impossible to increase the light storage material, and at the same time, it is not possible to use a light storage material with a large particle size.

Therefore, there is a problem in that it is impossible to manufacture a handle cover with high luminance and long lighting time.

[0019] Furthermore, since the handle cover itself emits light, it does not have the function of a backlight

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