JP2000206910A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a display plate which is capable of brightly displaying the coating film which is printed on the surface of a light transmission plate and both surfaces of the graphics, characters, etc., written on the surfaces of a light trnasmission plate by partitioning the contact of the light transmission plate and a blind plate with the film. SOLUTION: Light sources 1 are mounted on the upper part and lower part of a case 4 in such a manner that the light emitted by the light sources 1 are guided to the inside of the light transmission plate 2. The surface printed with the characters and graphics on the surface of the light transmission plate 2 is defined as 2b and the opposite surface thereof as 2a. The coating film 5 printed with the graphics is formed on the surface 2b of the light transmission plate and the coating film 5 comes into contact with the front surface of the blind plate 3 as well. The coating film 5 is printed with a coating film consisting of a resin coating material at a thickness of about several tens micrometers to several hundreds micrometers and partition the light transmission plate 2 and the blind plate 3 so as to prohibit the contact with each other. Since the light guided to the light transmission plate 2 is reflected by the coating film 5 which is printed on the surface 2b, the distinct display of the graphics is made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device using a light guide plate.

[0002]

2. Description of the Related Art Conventionally, in a light guide plate display device, in order to display figures and characters by writing on the surface of the light guide plate with an ink or a fluorescent pen, etc., the light guide plate and the blind plate are kept at an interval where they do not come into contact with each other. I was However, in this method, if the distance between the light guide plate and the blind plate is reduced, if the light guide plate or the blind plate bends or warps, there is a possibility that the light guide plate or the blind plate may come in contact with the light guide plate or the blind plate. Pressure bends the light guide plate, making contact with the blind plate more likely. From the above, it has been difficult to manufacture a thin display panel by reducing the distance between the light guide plate and the blind plate.

[0003]

An object of the present invention is to prevent the light guide plate from coming into contact with the blind plate because the light guided through the light guide plate shines strongly at the contacted portion. . Further, when the light guide plate and the blind plate are brought into close contact with each other, it is intended to solve the disadvantage that characters and the like written on the surface of the light guide plate cannot be clearly displayed. Even if a blind plate is replaced with a light guide plate and two light guide plates are displayed, when two light guide plates come into contact, the light guiding the light guide plate radiates to the outside at the point of contact. was there.

[0004]

Means for solving the above problems will be described. In order to form a gap between a light guide plate and a blind plate, characters or figures or pictures to be displayed are printed or written. Are separated by the thickness of a coating film made of resin or the like. As for the resin or the like, an adhesive or an ink may be used in addition to the paint.

[0005] A resin or the like for drawing or printing figures or the like on a blind plate is made of a material that retains its elasticity even when it is dry. ,
Characters and figures to be displayed can be clearly displayed. Instead of the blind plate, a light guide plate can be used to always display characters, figures, pictures, or the like between the two light guide plates. In this case, a light, a symbol, a figure, or the like written on the surface can be displayed on the light guide plate instead of the blind plate with the light guided from the light source, but the two light guide plates do not touch each other. As described above, one of the light guide plates is separated by a paint film on which a figure or the like is written or printed with resin.

[0006]

Since the present invention is an apparatus constructed as described above, it is possible to always display characters, figures, pictures, etc. between the light guide plate and the blind plate or between the light guide plate and the light guide plate. Further, the thickness of the coating film allows the light guide plate and the blind plate, or the light guide plate and the light guide plate, to keep a non-contact interval, so that the display plate can be thin and display characters and figures clearly. .

[0007]

1 and 2 show an embodiment of the present invention. FIG. 1 is a front view, and FIG. 2 is a side view. The light source 1 is attached to an upper portion and a lower portion of the case 4, and light emitted from the light source 1 is guided into the light guide plate 2. The surface on which characters and graphics are printed on the surface of the light guide plate 2 is defined as 2b, and the opposite surface is defined as 2a. Surface 2b of light guide plate
Has a coating film 5 on which a figure is printed.
Are also in contact with the surface of the blind plate 3. The coating film 5 is formed by printing a coating film made of a resin paint with a thickness of about several tens of micrometers to several hundred micrometers, and is partitioned so that the light guide plate 2 and the blind plate 3 do not come into contact with each other. Since the light guided to the light guide plate 2 is reflected by the coating film 5 printed on the surface 2b, a figure can be clearly displayed. When characters, symbols, and the like are written on the surface 2a of the light guide plate 2 with a highlighter or the like, the display plate becomes brighter with the light that has been guided.

[0008]

In this embodiment, the contact between the light guide plate 2 and the blind plate 3 is separated by the coating film 5 so that the coating film 5 printed on the 2b surface of the light guide plate 2 and the figures and figures written on the 2a surface can be obtained. The display panel can display both sides of characters and the like brightly.

[Brief description of the drawings]

FIG. 1 is a front view of a display panel of the present invention.

FIG. 2 is a side view of the display panel of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 light source 2 light guide plate 3 blind plate 4 case 5 coating film

Claims (2)

[Claims] 1. A case 4 includes a light source 1, a light guide plate 2 that guides light emitted by the light source 1 to display characters, figures, and the like described on a surface thereof, and a blind plate 3 that prevents light transmission. In the display device having a built-in structure, the thickness of the coating film 5 on which characters or figures are printed or written with resin or the like on the surface of the light guide plate 2 prevents the light guide plate 2 from contacting with the blind plate 3. Display device. 2. The method according to claim 1, wherein the thickness of the coating film on which characters or graphics are printed or written with resin or the like on the surface of the blind plate prevents contact between the light guide plate and the blind plate. 1 display device.