Foldable quantum dot light-color conversion diaphragm and manufacturing method thereof and display screen

Abstract

The invention discloses a foldable quantum dot light-color conversion diaphragm and a manufacturing method thereof and a display screen. The display panel at least comprises a substrate, a quantum dotphotoelectric conversion film and a packaging layer, a pixel area is arranged on one side face of the substrate, the quantum dot photoelectric conversion film is arranged on the pixel area of the substrate, the packaging layer completely covers the quantum dot photoelectric conversion film, and the substrate and the packaging layer jointly serve as a protection and insulation layer to isolate moisture and oxygen. The chemically toughened ultrathin glass substrate is used as the protective layer of the quantum dot photoelectric conversion film layer, so that the quantum dot photoelectric conversion film has foldability and is wide in application range; SiO2 packaging is plated through adoption of vacuum coating methods such as PVD or CVD, water, gas and oxygen are effectively prevented from entering, the quantum dot photoelectric conversion film is more stable, and the service life is long; and intaglio pad printing equipment is adopted to print three colors of sub-pixel ink and BM inkon an ultrathin glass substrate in a high-precision and graded mode, printing is accurate and in-place, efficiency is high, the yield is high, and manufacturing cost is low.

Description

technical field [0001] The invention discloses an optical film technology, in particular to a foldable quantum dot light-color conversion membrane, a manufacturing method of the membrane and a display screen with the membrane. Background technique [0002] Quantum dot (quantum dot) is a semiconductor nanostructure that binds excitons in three spatial directions. By applying a certain electric field or light pressure to this nano-semiconductor material, they will emit light of a specific frequency. A new type of luminescent material. The emission spectrum of quantum dots can be controlled by changing the size of quantum dots. By changing the size of quantum dots and its chemical composition, the emission spectrum can cover the entire visible light region. Quantum dots have a wide excitation spectrum and continuous distribution, good photostability, good monochromaticity, adjustable luminescence peak wavelength, high conversion efficiency, and can achieve light color stabilit...

AI Technical Summary

Problems solved by technology

[0004] The existing quantum dot LED or OLED display panels generally use blue LED / OLED as the light source, and the quantum dot light-color conversion film is pasted on it. In the production process, the most critical thing is the quantum dot light-color conversion film Due to the poor water and oxygen stability of quantum dot materials, conventional packaging has short life and rapid failure, and ordinary packaging methods cannot achieve effective protection for quantum dot materials; in addition, conventional packaging cannot realize the foldability of light-color conversion membranes

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