Display device, preparation method thereof and display device

Abstract

The invention relates to a display device, a preparation method thereof and a display device. The display device comprises a TFT array substrate; a light-emitting structure which is arranged on the TFT array substrate and comprises a pixel bank, a pixel isolation column and a plurality of pixel units, wherein the height of the pixel bank is larger than that of the pixel isolation column, the pixelbank defines a plurality of pixel grooves in the TFT array substrate, the pixel isolation columns are located in the pixel grooves and divide the pixel grooves into at least two sub-pixel grooves, asub-pixel is formed in each sub-pixel groove, and the colors of the sub-pixels located in the same pixel groove are the same; a scattering layer which is arranged on the light-emitting side of the light-emitting structure and comprises a first black isolation wall and a plurality of scattering units separated by the first black isolation wall, wherein the scattering units and the pixel units are arranged in a one-to-one correspondence mode, and the first black isolation wall and the pixel isolation columns are arranged in a one-to-one correspondence mode. The display device can improve the light extraction efficiency and improve the display effect of a high-resolution display.

Description

technical field [0001] The invention relates to the technical field of displays, in particular to a display device, a manufacturing method thereof, and a display device. Background technique [0002] In AMOLED (Active-matrix organic light-emitting diode, active-matrix organic light-emitting diode), QLED (Quantum dot light emitting diodes, quantum dot light-emitting diode) display technology, the top-emitting device structure does not hinder light output due to the driving circuit, so It is beneficial to achieve a higher aperture ratio and improve the display effect. In this technology, because the electrode on the light-emitting side often has the characteristic of reflecting visible light, the device often has a strong optical microcavity effect. Under the optical micro-cavity effect, the light output from the front is enhanced, but the light output from the side angle is correspondingly weakened. Such as figure 1 Shown is a schematic structural diagram of a common top-e...

AI Technical Summary

Problems solved by technology

[0004] However, in the research, the inventors found that there is a kind of problem in this technology: in the color pixel array with special arrangement, the monochromatic sub-pixel arrangement of RGB pixel unit is actually not uniform

But in displays with RGB pixels, applying a scattering layer will encounter a serious problem: scattering will cause the light of the sub-pixel to spread to adjacent pixels or even further, causing the image to be blurred

This makes it difficult for the scattering layer technology to be directly applied to color display devices with self-luminous RGB pixels.

Therefore, especially in high-resolution applications, how to use the advantages of the scattering layer and avoid the negative effects becomes a challenge

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