JP4518343B2 - Display device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a display device using a light guide plate.
[0002]
[Prior art]
Conventionally, in a light guide plate display device, an ink or a fluorescent pen or the like is written on the surface of a light guide plate to display a figure or a character, and the light guide plate and the blind plate are kept in contact with each other while being kept in contact with each other. However, in this method, if the distance between the light guide plate and the blind plate is narrowed, if the light guide plate or the blind plate is bent or warped, there is a possibility of contact, and characters to be displayed are written on the surface of the light guide plate. The pressure bent the light guide plate, making it easier to contact the blind plate. From the above, it has been difficult to produce a thin display panel by narrowing the distance between the light guide plate and the blind plate.
[0003]
[Problems to be solved by the invention]
In the present invention, when the light guide plate and the blind plate come into contact with each other, the light guided through the light guide plate at the contacted portion shines strongly, so that the contact is prevented. 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 written on the surface of the light guide plate cannot be clearly displayed. Even if the light guide plate is replaced with the light guide plate, the light guiding the light guide plate radiates to the outside when the two light guide plates come into contact. was there.
[0004]
[Means for Solving the Problems]
To explain the means for solving the above-mentioned purpose, in order to create a gap between the light guide plate and the blind plate, the character, figure or picture to be displayed is printed or written with the thickness of the coating film of resin or the like. It is separated. About resin etc., you may use an adhesive agent or ink other than a coating material.
[0005]
Resin, etc. for writing graphics or printing on the blind plate, using a material that retains elasticity even when dried, is displayed by light guided to the light guide plate when it is in close contact with the surface of the light guide plate Characters and figures can be displayed clearly. By replacing the blind plate with a light guide plate, it is possible to always display characters, figures or pictures between the two light guide plates. In this case, even the light guide plate replaced with the blind plate can display characters, symbols or figures written on the surface with the light guided from the light source, but the two light guide plates do not contact each other. As described above, one of the light guide plates is separated by a coating film on which a figure or the like is written or printed with a resin.
[0006]
[Action]
Since the present invention is an apparatus configured as described above, it is possible to always display characters, figures, pictures or the like between the light guide plate and the blind plate or between the light guide plate and the light guide plate. Moreover, since the light guide plate and the blind plate, or the light guide plate and the light guide plate can be kept away from each other by the thickness of the coating film, the display plate can be made thin and clearly display characters and figures. .
[0007]
【Example】
1 and 2 show an embodiment of the present invention. 1 is a front view, and FIG. 2 is a side view. The light source 1 is attached to the upper part and the lower part of the case 4, and light emitted from the light source 1 is guided into the light guide plate 2. The surface on which the characters and figures are printed on the surface of the light guide plate 2 is denoted by 2b, and the opposite surface is denoted by 2a. A coating film 5 on which a graphic is printed is formed on the surface 2 b of the light guide plate, and the coating film 5 is 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 hundreds of micrometers, and partitions the light guide plate 2 and the blind plate 3 so as not to contact each other. Since the light guided to the light guide plate 2 is reflected by the coating film 5 printed on the surface 2b, the figure can be clearly displayed. In addition, when characters, symbols, or the like are written on the surface 2a of the light guide plate 2 with a fluorescent pen or the like, the display plate is brightly displayed by the guided light.
[0008]
【The invention's effect】
In this embodiment, by separating the contact between the light guide plate 2 and the blind plate 3 with the coating film 5, the coating film 5 printed on the 2b surface of the light guide plate 2 and both surfaces such as figures and characters written on the 2a surface are provided. The display board can display brightly.
[Brief description of the drawings]
FIG. 1 is a front view of a display panel according to the present invention. FIG. 2 is a side view of a display panel according to the present invention.
DESCRIPTION OF SYMBOLS 1 ... Light source 2 ... 1st light guide plate 3 ... Blind plate or 2nd light guide plate 4 ... Case 5 ... Coating film

Claims (2)

The case 4 has a light source 1, a first light guide plate 2 that guides light emitted from the light source 1 and displays characters and figures with a resin coating on the surface, and a blind plate or a second guide that prevents light transmission. In a display device with a built-in optical plate 3, a coating film 5 on which characters or figures are printed or written with a resin on the surface 2 b of the first light guide plate 2 facing the blind plate or the second light guide plate 3 is displayed. The thickness of the coating film 5 prevents the contact between the first light guide plate 2 and the blind plate or the second light guide plate 3. The case 4 has a light source 1, a first light guide plate 2 for guiding the light emitted from the light source 1 and displaying characters and figures on the surface with a resin coating, and a blind plate or a second guide for preventing light transmission. In a display device with a built-in optical plate 3, a coating film in which characters or figures are printed or written with a resin on the surface of the blind plate facing the surface 2 b of the first light guide plate 2 or on the surface of the second light guide plate 3 5 is displayed, and the contact between the first light guide plate 2 and the blind plate or the second light guide plate 3 is prevented by the thickness of the coating film 5 .

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