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Organic electroluminescence panel, organic electroluminescence display, organic electroluminescence illumination and method of manufacturing them

一种制造方法、电致发光元件的技术，应用在电致发光光源、照明装置、半导体/固态器件制造等方向，能够解决有机EL元件劣化等问题

Active Publication Date: 2009-09-30
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because when air bubbles are generated inside the adhesive, the organic EL element may deteriorate due to the air bubbles.

Method used

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  • Organic electroluminescence panel, organic electroluminescence display, organic electroluminescence illumination and method of manufacturing them
  • Organic electroluminescence panel, organic electroluminescence display, organic electroluminescence illumination and method of manufacturing them
  • Organic electroluminescence panel, organic electroluminescence display, organic electroluminescence illumination and method of manufacturing them

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0060] figure 1 (a) is a schematic cross-sectional view showing the structure of the organic EL panel of Embodiment 1, figure 1 (b) is a schematic plan view showing the structure of the organic EL panel of the first embodiment.

[0061] The organic EL panel 10 of Embodiment 1, such as figure 1 As shown in (a) and (b), it includes: a flat element glass (element substrate) 1; a flat plate sealing glass (sealing substrate) 2 opposite to the element glass 1; a sealing glass 2 disposed on the element glass 1- The organic EL element 3 on the side; the cured product (first sealing member) 5a of the liquid sealing material (airtight seal, liquid adhesive) that seals between the element glass 1 and the sealing glass 2; and the liquid sealing material The decompression or vacuum space 6 is formed between the cured products 5a, and the cured product (second sealing member) 4a of the solid sealing material covering the organic EL element 3 is bonded. exist figure 1 In (a) and (b),...

Embodiment approach 2

[0092] image 3 (a)-(d) are perspective schematic diagrams which show the manufacturing process of the organic electroluminescent panel of Embodiment 2.

[0093] First, if image 3 As shown in (a), a sealing glass (sealing substrate) 2 is prepared.

[0094] Next, although not shown, a plurality of organic EL elements are formed on the element glass (element substrate).

[0095] Next, using a roll-to-roll method such as image 3 As shown in (b), the solid sealing material 4 is pasted on the sealing glass 2 (solid sealing material arranging step). The solid sealing material 4 is attached to a position corresponding to the upper portion of the plurality of organic EL elements 3 when the sealing glass 2 and the element glass 1 are bonded together. By using the common solid sealing material 4 for a plurality of organic EL elements 3 in this way, compared with the case where the solid sealing material 4 is attached to each organic EL element 3, the tact time (tact time) required...

Embodiment approach 3

[0103] Figure 5 (a) is a schematic cross-sectional view showing a state where a liquid sealing material including a spacer is arranged on the element glass. Figure 5 (b) is expressed in Figure 5 (a) Later, the cross-sectional schematic diagram of the state when the element glass 1 and the sealing glass 2 are bonded together.

[0104] In this embodiment, if Figure 5 As shown in (a), after disposing the liquid sealing material 5 containing the spherical spacer 7 on the element glass 1, as shown in Figure 5 As shown in (b), it is the same as that of Embodiment 1 except that the element glass 1 and the sealing glass 2 are bonded together. The average particle diameter of the spacer 7 is preferably 1 to 100 μm, more preferably 20 μm or less in consideration of sealing performance and light transmittance. By including the spacer 7 in the liquid sealing material 5 in this way, the distance between the element glass 1 and the sealing glass 2 can be kept constant. Also, in th...

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PUM

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Abstract

The present invention provides an organic electroluminescence device that can maintain a stable light emitting characteristic for a long time, an organic electroluminescence panel provided with the organic electroluminescence element, an organic electroluminescence display, organic electroluminescence illumination and a method of manufacturing them. The organic electroluminescence panel is provided with a device substrate, a sealing substrate set opposite to the device substrate and an organic electroluminescence element formed on the sealing substrate side of the device substrate. The organic electroluminescence panel is comprised of a first sealing member to seal the device substrate and the sealing substrate and a second sealing member to coat the organic electroluminescence element at a position separated from the first sealing member, wherein a space defined between the first and second sealing members is reduced in pressure or is in a vacuum state.

Description

technical field [0001] The present invention relates to an organic electroluminescent (EL) panel, an organic EL display, an organic EL lighting device, and their manufacturing methods. More specifically, it relates to an organic EL panel, an organic EL display, an organic EL lighting device that can be suitably used for an organic EL display and an organic EL lighting device, and their manufacturing methods. Background technique [0002] So far, as the structure of the organic EL panel, in order to prevent the deterioration of the organic EL element caused by oxygen and moisture from the outside, it is generally used to paste a desiccant on the sealed can (relief glass), and seal the surrounding of the organic EL element with a sealing resin. Can sealing structure with a frame-like seal. However, in this tank sealing structure, it is difficult to adopt a top emission structure (high aperture ratio) that takes out light from the upper surface of the panel and to achieve thin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/04H01L51/50H05B33/10
CPCH01L51/5237H10K59/8723H10K59/8722H10K50/8428H10K50/8426
Inventor 太田纯史
Owner SHARP KK
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