RGBW-based Micro-LED preparation system

Abstract

The invention provides an RGBW-based Micro-LED preparation system, which comprises a developing machine, an etching machine, a light source module, a mask plate and an array substrate coated with photoresist; the mask plate and the array substrate coated with photoresist are sequentially arranged in the light emitting direction of the light source module; the light source module comprises four groups of light sources, each group of light sources corresponds to one sub-pixel structure in a display pixel, the mask comprises a plurality of light-transmitting areas, and the projection of the center of each light-transmitting area on the array substrate is located at the center of the sub-pixel structure corresponding to the light-transmitting area; when the photoresist is exposed, the four groups of light sources simultaneously penetrate through the light-transmitting area of the mask to expose the photoresist at the sub-pixel structures, and the exposure illumination intensity and the exposure illumination duration of each group of light sources are determined according to the volume of quantum dot colloid to be filled in the sub-pixel structures corresponding to the light sources; the developing machine and the etching machine carry out subsequent processing on the exposed array substrate so as to form the liquid storage tank; according to the invention, the problem of unbalanced sub-pixel luminance caused by different sealing glue thicknesses of quantum dots can be solved.

Description

technical field [0001] The invention relates to the technical field of displays, in particular to an RGBW-based Micro-LED preparation system. Background technique [0002] Micro-LED (miniature light-emitting diode) is a new generation of display technology, which has higher brightness and better luminous efficiency than the existing OLED (organic light-emitting diode) technology, but lower power consumption. Micro-LED technology, the LED structure design is thinned, miniaturized, and arrayed, and its size is only about 1-10 μm. The biggest advantage of Micro-LED comes from the micron-level pitch, each pixel (pixel) can be addressed and controlled and single-point driven to emit light, long life, and wide application range. [0003] Compared with the traditional RGB display, RGBW display includes red (R), green (G), blue (B) sub-pixels and white (W) sub-pixels. The addition of white sub-pixels can greatly improve the wear-through rate of LCD. Transmittance, luminous efficie...

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a RGBW-based Micro-LED preparation system, which can solve the problem of unbalanced sub-pixel luminous brightness due to different thicknesses of quantum dot sealants

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