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Method and structure for protecting organic electro photoluminescence display

A technology of electroluminescence and display, applied in electric solid devices, static indicators, optics, etc., can solve problems such as long distance, difficult to battery effect, and inability to completely overcome.

Inactive Publication Date: 2004-09-01
UNIVISION TECHNOLOGY
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AI Technical Summary

Problems solved by technology

Since the metal electrode of the organic electroluminescence component is far away from the metal layer used as a getter, there is no electrical conduction between the two to effectively form a galvanic connection, so it is not easy to form a battery effect
Therefore, the water vapor and oxygen inside the organic electroluminescent component will still invade the organic electroluminescent component, and therefore cannot completely overcome the shortcomings of water vapor and oxygen intruding into the organic electroluminescent component

Method used

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  • Method and structure for protecting organic electro photoluminescence display
  • Method and structure for protecting organic electro photoluminescence display
  • Method and structure for protecting organic electro photoluminescence display

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Embodiment Construction

[0029] Figure 7 It is a top view of an organic electroluminescence display according to a fourth preferred embodiment of the present invention.

[0030] See figure 1 , which is a cross-sectional view of the organic electroluminescence component according to the first preferred embodiment of the present invention. exist figure 1 Among them, a transparent conductive electrode layer 11, which is composed of several parallel electrodes composed of indium tin oxide (ITO), indium zinc oxide (IZO), zinc aluminum oxide (AZO) or zinc oxide (ZnO) Composition, and formed on the substrate 10 by sputtering, ion plating or electron beam evaporation and other deposition processes. The substrate 10 is also transparent, for example formed of soda lime glass, borosilicate glass or alkali free glass. The transparent electrode layer 11 is used as the anode of the organic electroluminescence component, to provide holes to combine with electrons to emit visible light.

[0031] An organic thin...

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Abstract

A method for protecting the electrically excited organic luminous display features that its metal electrodes are covered partially by a protecting metal layer to protect the luminous assemblies under them. The protecting metal layer features that the E.M.F. of its one component with the leat E.M.F. is less than that of the component with the greatest E.M.F. contained in the said metal actrode, so generating an accumulator effect between the protecting layer and the metal electrode. The protecting layer plays the role of sacrifice anode to protect the metal electrode and luminous assembly. Its advantages are high luminous efficiency and reliability and long service life.

Description

technical field [0001] The present invention relates to an organic electroluminescent display (organic EL display), in particular to a method for protecting the organic electroluminescent display and the structure formed therein. Background technique [0002] Currently, the manufacturing method of flat panel display applied to electronic devices has gradually adopted organic EL devices as display components in the flat panel display. The structure of an organic electroluminescent component mainly includes a transparent substrate, such as a glass substrate, on which a transparent electrode layer is deposited (deposit), such as an indium tin oxide (ITO) layer, for use as an organic electroluminescence The anode of the component. An organic thin film is formed on the transparent substrate and the transparent electrodes. On top of the organic thin film, a metallic electrode layer is covered, which is used as a cathode of the organic electroluminescence component. The organic ...

Claims

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Application Information

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IPC IPC(8): G02F1/061G09G3/30
Inventor 叶致宏袁建华江建志汤舜钧江慧宜
Owner UNIVISION TECHNOLOGY
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