JPH08234185A - Lcd display unit and lcd display device - Google Patents

Abstract

PURPOSE: To eliminate the unevenness of a light source on the back surface of an LCD and the need of an intervenient sheet so as to obtain an LCD display device excellent in a display effect by constituting a glass on a back side constituting an LCD display unit of ground glass. CONSTITUTION: The LCD display unit 1 is used in the LCD display device, and a light receiving plate 2 is arranged on the back surface side of the display unit 1. In the display unit 1, the glass material on the back side constituting the display unit 1 is constituted of the ground glass 1b. Since the glass on the back side is the ground glass 1b, the uneveness of the light source on the back surface of an LCD 1a is eliminated, and the intervenient sheet such as a blast- processed thin sheet or a milky-white sheet which is used in the conventional device is disused. Furthermore, the intervenient sheet is eliminated, so that light transmissivity from the light receiving plate 2 becomes excellent, which makes the display effect excellent. Since the light receiving plate 2 is directly arranged on the back surface side, the constitution of the device is simplified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an LCD display and an LCD.
Regarding display device.

[0002]

2. Description of the Related Art FIG. 2 is an exploded perspective view of a conventional LCD display and LCD display device.
1a and the glass 11b on the back side, and the glass 11b is made of transparent glass.
An intervening sheet 13 such as a blasted thin sheet or a milky white sheet is sandwiched between the light-collecting plate 12 and the lighting plate 12 in order to eliminate unevenness of the light source on the rear surface of the LCD. In the figure, the arrow F indicates the front direction.

[0003]

Since the intervening sheet 13 in the conventional LCD display device is only for eliminating the unevenness of the light source, the intervening sheet 13 can be omitted if other means have the same effect. The configuration can be simplified.

As a result of various studies and experiments on the omission of the intervening sheet 13, the present inventor has determined that the intervening sheet 13 is arranged by forming the glass material on the back side constituting the LCD display with ground glass. It was found that a display effect equivalent to or higher than that can be obtained.

Although it has been examined that the surface side of the daylighting plate 12 (the side of contact with the LCD display 11) is subjected to blasting instead of the above-mentioned structure, it is possible to illuminate when the daylighting plate is blasted. It was found that the reflection inside the plate was reduced and the total amount of light was reduced.

At first glance, the lighting plate 12 and the LCD display 11
Since it is closely attached, it is expected that the same effect as that of the above-mentioned structure can be expected, but the same effect was not obtained when the lighting plate itself was blasted.

That is, normally, the daylighting plate 12 is arranged as shown in FIG. 3A, a white coating is applied to the back side of the daylighting plate 12 to form a coating part 15, and the coating part is lighted by the light source 14. It's shining. In this case, if the surface of the daylighting plate 12 is a mirror surface, the light from the light source 14 is reflected toward the inside of the daylighting plate on the surface and the coated surface shines, but as shown in FIG. 3B, the surface is blasted. When the treatment 12a is applied, the light is reflected there, and the light reaching the coated surface is significantly reduced, so that the light amount is reduced and the display effect is deteriorated.

An object of the present invention is to make it possible to omit an intervening sheet used in a conventional LCD display device.
An object of the present invention is to provide a D display device and an LCD display device excellent in display effect.

[0009]

In the LCD display of the present invention, the glass material on the back side of the LCD display is ground glass.

The LCD display device is an LC display device having the above-mentioned structure.
A D display is used and a lighting plate is directly arranged on the back side of the LCD display.

[0011]

Since the glass on the back side of the LCD display is frosted glass, the unevenness of the light source on the back side of the LCD is eliminated, and the intervening sheet such as a blasted thin sheet or a milky white sheet which is conventionally used is unnecessary. Further, in a display device using this LCD display, since there is no intervening sheet, the translucency from the lighting plate is good and the display effect is excellent.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an LCD display and LCD according to the present invention.
An embodiment of a display device is shown, and in the figure, reference numeral 1 is an LCD display, and the glass positioned on the back side of the LCD 1a is constituted by ground glass 1b. In the figure, the arrow F indicates the front direction.

The LCD display 1 having the above structure is
Since the glass on the back side is ground glass 1b, LCD 1a
The unevenness of the light source on the back surface is eliminated, the conventional intervening sheet 13 is unnecessary, and the daylighting plate 2 can be directly arranged on the back surface side of the LCD display 1.

Further, in the display device using the LCD display 1, since there is no intervening sheet, the translucency from the daylighting plate 2 is good and the display effect is excellent.

[0015]

According to the LCD display device and the LCD display device of the present invention, since the glass on the back side constituting the LCD display is ground glass, it is possible to eliminate the unevenness of the light source on the back surface of the LCD, and the conventional LCD display. The intervening sheet used in the device is unnecessary, and since the lighting plate can be directly placed on the back side of the LCD display, the structure is simple and the display effect is excellent by not placing the intervening sheet. .

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an LCD display device and an LCD display device of the present invention.

FIG. 2 is an exploded perspective view showing a conventional LCD display device.

FIG. 3 shows a general arrangement of a daylighting plate, FIG. 3A is a plan view when the daylighting plate is not blasted, and FIG. 3B is a diagram illustrating a problem when the daylighting plate is blasted. Plan view for.

[Explanation of symbols]

 1 LCD display 1a LCD 1b Frosted glass 2 Lighting plate F Front direction

Claims (2)

[Claims] 1. An LCD display device characterized in that the glass material on the back side of the LCD display device is composed of ground glass. 2. An LCD display device characterized in that a glass material on the back side constituting the LCD display is made of ground glass and a lighting plate is directly arranged on the back side of the LCD display.