Flexible active element array substrate and organic electroluminescent element

Abstract

Disclosed are a flexible active element array substrate and an organic electroluminescent element. The array substrate comprises a flexible substrate, an active element array layer, a block layer and a plurality of pixel electrode, wherein the active element array layer is arranged on the flexible substrate, the block layer covers the active element array layer and comprises a multi-layer organic material layer and a multi-layer inorganic material layer, which are alternatively stacked on the active element array layer, and the pixel electrode is arranged on the block layer and electrically connected with the active element array layer. The flexible active element array substrate is flexible and is low in steam permeability.

Description

technical field [0001] The invention relates to an active element array substrate, and in particular to a flexible active element array substrate and an organic electroluminescence element. Background technique [0002] Organic light-emitting devices have excellent characteristics such as thinness, self-luminescence, low power consumption, no need for backlight, no viewing angle limitation, and high response rate. They have been regarded as the rising stars of flat-panel displays. Nowadays, in order to make the organic light emitting device more widely used, a flexible organic light emitting device has been developed. Whether a display is flexible depends on the substrate material it uses. When the substrate used in the display is a rigid substrate, the display will not be flexible. On the contrary, when the substrate used in the display is a flexible substrate (such as a plastic substrate), the display has good flexibility. [0003] Generally speaking, the technology of ...

AI Technical Summary

Problems solved by technology

However, the water blocking ability of organic materials is poorer than that of inorganic materials, so water vapor can easily penetrate into thin film transistors and affect their electrical properties.

In addition, compared with common hard substrates (such as glass substrates), when using plastic substrates as flexible substrates, water vapor can easily penetrate into the thin film transistor from the direction of the plastic substrate and affect the electrical properties. Therefore, how to improve the flexibility The reliability of the active device array substrate is one of the urgent issues to be solved at present

Images