Micro-LED (Micro-light emitting diode) array backlight source-based ink-jet printing quantum dot display device

Abstract

The invention relates to a Micro-LED (Micro-light emitting diode) array backlight source-based ink-jet printing quantum dot display device, which comprises a Micro-LED substrate, wherein a plurality of RGB (red, green and blue) pixel units arranged in an array are arranged on the Micro-LED substrate; each RGB pixel unit comprises a red quantum dot unit, a green quantum dot unit and a transparent unit; each red quantum dot unit comprises a Micro-LED chip and a red quantum dot material, and the red quantum dot material is excited by blue light emitted by the Micro-LED chip to emit red light; each green quantum dot unit comprises a Micro-LED chip and a green quantum dot material, and the green quantum dot material is excited by blue light emitted by the Micro-LED chip to emit green light; each transparent unit comprises a Micro-LED chip and a transparent material, and the transparent material is used for directly transmitting blue light emitted by the Micro-LED chip; a transparent material for packaging is arranged outside the RGB pixel units. According to the device, an ink-jet printing technology is adopted for film forming of quantum dots, so that the problems of complexity and low yield of an RGB tri-color process for manufacturing a Micro-LED full-color product are solved, and batch operation is realized.

Description

technical field [0001] The invention relates to an inkjet printing quantum dot display device based on a Micro-LED array backlight source. Background technique [0002] Quantum dots (QDs) are semiconductor nanoparticles composed of II-VI or III-V elements, and their size is generally between a few nanometers and tens of nanometers. Due to the existence of the quantum confinement effect, the original continuous energy bands of quantum dot materials become discrete energy level structures, which can emit visible light after being excited by the outside world. Due to the small half-width of quantum dot materials and the luminous color can be adjusted by the size, structure or composition of quantum dot materials, the application in the field of display will improve the color saturation and color gamut. [0003] The advantages of Micro LED are obvious. It inherits the characteristics of high efficiency, high brightness, high reliability and fast response time of inorganic LED, ...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to provide an inkjet printing quantum dot display device based on Micro-LED array backlight, which uses inkjet printing technology to form a film of quantum dots, which solves the problem of making RGB full-color Micro-LED products. The three-color process is complicated and the yield is low, and it has realized a large number of operations

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