Display apparatus

• US 20020149715A1
• Filed: 04/09/2002
• Published: 10/17/2002
• Est. Priority Date: 04/16/2001
• Status: Active Grant

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Tamaki, Ryosuke, Sakamoto, Tomoki, Matsuura, Kiyotaka
• Granted Patent: US 7,023,617 B2
• Time in Patent Office: Days
• US Class Current: 349/61
• CPC Class Codes: G02F 1/133602 Direct backlight
• CPC Class Codes: G02F 1/133616 Front illuminating devices
• CPC Class Codes: G09F 13/00 Illuminated signs; Luminous advertising G09F9/00, G09F11/00 take precedence; control of displays in general using static means to present variable information G09G
• CPC Class Codes: G09F 13/04 Signs, boards or panels, illuminated from behind the insignia

Abstract

The display apparatus according to the present invention comprises a transmission type of fluorescent display lamp (FL) 1 which pattern layer is not masked. The rear and front spaces of the transmission type FL 1 are defined by frames 5, 6. On each frame 5, 6 is attached an illumination display member (a light guide plate 8 or a transmission sheet 9) so that illumination displays are performed at both front and rear sides of the FL 1 by a light emitting source 10 such as LED, fluorescent lamp and so on. Thus, more three-dimensional visual effect (depth perception) can be obtained. Further, utilizing spaces in the front and the rear of the transmission type FL 1, more wide representation and functional display through a microcomputer control can be performed. Use of the light emitting source 10 contemplates cost down in comparison with the conventional biplanar type of FL.

Claims

1. A display apparatus, comprising:

a transmission type of display element;

a first frame for defining a front space positioned in the front of the transmission type of display element;

a second frame for defining a rear space positioned in the rear of the transmission type of display element;

an illumination display member attached on the face of the first frame or the second frame; and

a light emitting source for irradiating a light to the illumination display member.

2. A display apparatus as claimed in claim 1, wherein the display element comprises one selected from the group consisting of a fluorescent display lamp, an electroluminescence and a liquid crystal display.

3. A display apparatus as claimed in claim 1, wherein the first frame has a rectangular shape comprising upper and lower walls and both side walls.

4. A display apparatus as claimed in claim 1, wherein the second frame has a rectangular box shape comprising upper and lower walls, both side walls and a back wall.

5. A display apparatus as claimed in claim 1, wherein, the illumination display member has a predetermined display printed thereon.

6. A display apparatus as claimed in claim 1, wherein, the illumination display member comprises a transmission sheet.

7. A display apparatus as claimed in claim 6, wherein, the transmission sheet is colored with a predetermined color.

8. A display apparatus as claimed in claim 1, wherein, the illumination display member comprises a light guide plate.

9. A display apparatus as claimed in claim 1, wherein, the light emitting source comprises a light emitting diode.