Organic electroluminescence display device

Abstract

The strength of the whole OLED is increased by proposing a new method of fixing OLED panels. To address the problem, an OLED element is formed on a substrate, and a sealing substrate of a structure by which the substrate is sealed is fixed to a lower metallic frame via an elastic sheet. Silicon resin is preferably used as the sheet, and use of a sheet having a heat diffusion function based on radiation is more desirable.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a sectional structure of a general OLED;

FIG. 2 shows a sectional structure of an OLED sealed by a sealing glass substrate;

FIG. 3 is a structural drawing of an OLED element of the present invention that uses a frame structure;

FIG. 4 shows a truss structure part of this proposal;

FIG. 5 shows a conventional doweling-based frame assembly method;

FIG. 6 shows an example of positional deviation in a doweling part;

FIG. 7 is a drawing showing FPC peel stress induced by FPC bending;

FIG. 8 shows the spring support structure of FPC;

FIG. 9 shows a peel stress suppressing mechanism of FPC;

FIG. 10 shows a mechanism of infrared absorption and an elastic (buffer) film;

FIG. 11 shows a bending stress absorbing mechanism by an elastic (buffer) film; and

FIG. 12 is a structural drawing of an OLED panel showing space allocated in the outer regions of OLED.

Claims

1. An organic EL display device, wherein an OLED element is formed on a substrate, and a sealing substrate of a structure by which the substrate is sealed is fixed to a lower metallic frame via an elastic sheet.

2. The organic EL display device of claim 1, wherein the sheet is formed from silicon resin.

3. The organic EL display device of claim 3, wherein the sheet has a heat diffusion function based on radiation.

4. An organic EL display device, wherein a lower frame and an upper frame have an engagement structure by snap fit that has a notch shape.

5. The organic EL display device of claim 4, wherein each side of the frames has the notch shape.

6. An organic EL display device, wherein wall parts with an upper frame and a lower frame combined and OLED panels are fixed in positions apart from each other.

7. An organic EL display device, wherein a slope spring is provided in a lower frame and a support spring is provided in an upper frame, andwherein OLED panels are fixed to the lower frame and the upper frame.

8. The organic EL display device of claim 7, wherein the height of the joint surface of the upper and the lower springs is designed to be nearer to the light emitting surface than the position of the surface of FPC extraction to the OLED element.