Electric field luminous display device and its mfg. method

An electroluminescence and display device technology, applied in electroluminescence light sources, electric light sources, lighting devices, etc., can solve problems such as peeling, floating, cracking of desiccant layers, and damage to organic EL components.

Inactive Publication Date: 2004-10-13
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, a part of the desiccant layer peels off and floats from the sealing glass substrate, or the desiccant layer breaks halfway, so that th

Method used

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  • Electric field luminous display device and its mfg. method
  • Electric field luminous display device and its mfg. method
  • Electric field luminous display device and its mfg. method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0046]FIG. 1 is a cross-sectional view sequentially showing manufacturing steps (a) to (e) of the electroluminescence display device according to the first embodiment of the present invention. 2 is a plan view of an electroluminescence display device, the X-X line sectional view of FIG. 2(a) is FIG. 1(a), and the Y-Y line sectional view of FIG. 2(b) is FIG. 1(e).

[0047] Hereinafter, a method of manufacturing the electroluminescent display device according to the first embodiment will be described. First, as shown in FIG. 1( a ) and FIG. 2( a ), a sealing glass substrate 100 having a thickness of about 0.7 mm is prepared. A plurality of resist film patterns 101 a arranged in a grid pattern are formed in a region to be formed of a cavity portion of the sealing glass substrate 100 (hereinafter referred to as a region to be formed in a cavity portion). Then, a ring-shaped resist film pattern 101b is formed around the region where the cavity portion is to be formed. A chrome ma...

no. 2 approach

[0053] FIG. 3 is a cross-sectional view sequentially showing the manufacturing process of the electroluminescent display device according to the second embodiment of the present invention. In addition, in the figure, the same code|symbol is attached|subjected to the same component as FIG. 1.

[0054] First, as shown in FIG. 3( a ), a sealing glass substrate 100 having a thickness of approximately 0.7 mm is prepared. And a resist film pattern 101c having an opening is formed in a region to be formed of a cavity of the sealing glass substrate 100 (hereinafter referred to as a region to be formed of a cavity). The resist film pattern 101c is a ring-shaped resist film pattern formed on the periphery of the region where the cavity portion is to be formed. As in the first embodiment, it is preferable to form the chrome mask layer 102 on the bottom layer of the resist film pattern 101c. In addition, a hydrofluoric acid-resistant film can also be used for patterning.

[0055] Next,...

no. 3 approach

[0060] 4 is a cross-sectional view sequentially showing the manufacturing process of the electroluminescence display device according to the third embodiment of the present invention. In addition, in the figure, the same components as those in FIG. 1 are denoted by the same symbols.

[0061] First, as shown in FIG. 4( a ), a sealing glass substrate 100 having a thickness of about 0.7 mm is prepared. And a resist film pattern 101d having an opening is formed in a region to be formed of the cavity of the sealing glass substrate 100 (hereinafter referred to as a region to be formed of the cavity). The resist film pattern 101d is a ring-shaped resist film pattern formed on the periphery of the region where the cavity portion is to be formed. A chromium mask layer 102 may be formed under the resist film pattern 101d. In addition, a hydrofluoric acid-resistant film can also be used for patterning.

[0062] As shown in FIG. 4( b ), the cavity portion 120 is formed by etching the s...

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Abstract

Electroluminescent display device and manufacturing method thereof. To prevent exfoliation and rupture of a desiccant layer of an organic EL panel and improve the reliability to the temperature cycle. Using a plurality of resist patterns (101a) arranged in lattice shape as a mask, a sealing glass substrate (100) is etched with hydrofluoric acid, and a pocket part (103) is formed. An unevenness (104) is formed on the surface of the sealing glass substrate (100) on the bottom of the pocket part (103). Then, a desiccant layer (105) is formed. By this coarse surface making treatment, an anchor effect is demonstrated and adhesion of the desiccant layer to the sealing glass substrate is increased, and exfoliation or the like can be prevented.

Description

technical field [0001] The present invention relates to a sealing device for improving the moisture resistance of an electroluminescent display device and a method for forming the sealing device. Background technique [0002] Organic Electro Luminescence Device (Organic Electro Luminescence Device: hereinafter referred to as "organic EL device") in recent years is a self-luminous light-emitting device. An organic EL display device using this organic EL device has attracted attention as a new display device replacing a CRT or an LCD. [0003] Because the organic EL component is not water-resistant, there is a proposal to add a metal cover or a glass cover coated with a desiccant on the organic EL display panel. Figure 8 It is a sectional view of this conventional organic EL display device. [0004] The surface of the unit glass substrate 70 has a display area in which a plurality of organic EL units 71 are formed. The module glass substrate 70 is bonded to a sealing glass ...

Claims

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Application Information

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IPC IPC(8): H05B33/04H01L51/50H01L51/52H05B33/10
CPCY10T428/24479Y10T428/23C03C15/00H01L51/5237H10K50/846H10K50/8426H05B33/04
Inventor 小村哲司
Owner SANYO ELECTRIC CO LTD
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