Organic electroluminescent display panel, manufacturing method thereof and display device

Abstract

The invention discloses an organic electroluminescent display panel, a manufacturing method thereof and a display device. A pixel defining structure comprises at least two pixel defining layers which are arranged in a laminated mode, the pixel defining layer away from a substrate base plate is arranged on the outer side of the pixel defining layer of an adjacent substrate base plate in a wrapping mode, the refractive index of the pixel defining layer away from the substrate base plate is higher than that of the pixel defining layer of the adjacent substrate base plate, therefore, according to the principle that total reflection can occur in light when the light irradiates to an optically thinner medium from an optically denser medium, when lateral light emitted by an organic electroluminescent structure irradiates a pixel structure, the lateral light with the incident angle being larger than the critical angle of total reflection can generate total reflection so as to enable the lateral light irradiating to the pixel structure from the organic electroluminescent structure to be reflected to the outside, and the phenomena of light leakage and light color interference of the organic electroluminescent display panel are avoided. Due to the fact that the lateral light is not prone to being absorbed by the pixel defining structure, the light-emitting efficiency of the organic electroluminescent display panel is increased.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an organic electroluminescence display panel, a manufacturing method thereof and a display device. Background technique [0002] At present, compared with traditional liquid crystal display (Liquid Crystal Display, LCD), organic electroluminescence display (Organic Electroluminescence Display, OLED) has the characteristics of fast response, wide color gamut, ultra-thin, and flexible. Has gradually become the mainstream of the display field. [0003] The structure of an OLED display device mainly includes: a substrate, a plurality of organic electroluminescent structures arranged in a matrix on the substrate, and a pixel defining layer between adjacent organic electroluminescent structures; wherein, each Each organic electroluminescence pixel structure includes an anode and a cathode arranged oppositely, and a light-emitting layer between the anode and the cathode. The light em...

AI Technical Summary

Problems solved by technology

However, since opaque compounds, such as colorants, are generally carbon-containing materials with low dielectric constants, the optoelectronic performance of the organic electroluminescent structure of active OLED display devices will be degraded.

In addition, side light is also easily absorbed by opaque materials, resulting in a decrease in the overall luminous efficiency of active OLED display devices

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