Illuminator with adjustable colors

Abstract

A light-emitting device in colour adjustable type includes an organic light-emitting diode and a planar colour conversion layer. The planar colour layer formed by a certain dosage of fluorescent materials is coated or deposited on the organic light-emitting diode in planar manner and micro-light colour mixing effect of granules in the fluorescent material is used to change short wavelength light-emitting spectrum generated by the organic light-emitting diode into a long wavelength light-emitting spectrum for changing the light-emitting colour of it so that the organic light-emitting diode canadjust its light-emitting colour by using the planar colour conversion layer formed with different fluorescent materials.

Description

technical field [0001] The invention relates to a light-emitting device, in particular to a color-tunable organic light-emitting device. Background technique [0002] With the development of optoelectronic components towards light, thin, short, and small, light sources, especially organic light-emitting diodes (organic light-emitting device) light sources, play a very important role in the entire display industry or measurement industry. Taking liquid crystal flat panel displays as an example, if the development of the light source cannot match the planar component structure such as thin film transistors, polarizers, and color filters, the thickness of the overall liquid crystal flat panel display cannot be further thinned, nor can it meet today's light weight requirements. , Thin, short and small application trends. Therefore, the development of flat and thin light sources, especially white light sources, is very urgent for the entire display technology and lighting techno...

AI Technical Summary

Problems solved by technology

However, the complex manufacturing process of this structure is not suitable for mass production, and the absorption of light by each material layer leads to a decrease in the conversion efficiency of each color light; moreover, the stacking of layers increases the thickness, reduces the luminous efficiency, and increases the cost.

[0010] To sum up, the above-mentioned structures are only limited to the lateral or vertical color mixing on the macroscopic level, which will cause poor uniformity of chromaticity

And the related planar white light hybrid technology, the evaporation technology on the specific pixel position of the substrate, and the difficulty of positioning will affect the pass rate of mass production.

The vertical stacking will also lead to different absorption of light by each material layer, which leads to the problem of poor white light efficiency, and the red light material is not yet mature enough to be compatible with the green and blue light materials in terms of luminous efficiency and lifespan. Difficulties in chromaticity stability, life and reliability of color components

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