Luminescent device, manufacturing method thereof and display panel

Abstract

The invention discloses a luminescent device, a manufacturing method of the luminescent device and a display panel. By means of the manufacturing method of the luminescent device and the display panel, the manufacturing process of the luminescent device is simplified, and the performance of the luminescent device is improved. The luminescent device comprises a white light emitting layer, the white light emitting layer comprises polyfluorene blue light emitting materials, red light quantum dots and green light quantum dots, and the red light quantum dots and the green light quantum dots are mixed in the polyfluorene blue light emitting materials. The white light emitting layer is of a single film layer structure, the film can be formed once, respective preparation of a red luminescent layer, a green luminescent layer and a blue luminescent layer is not needed, and therefore the process of the luminescent device is simplified and the structure of the luminescent device is simple. Besides, the polyfluorene blue light emitting materials have high heat stability and chemical stability and have a high fluorescent quantum yield, so that the luminescent device is high in luminous efficiency.

Description

technical field [0001] The present invention relates to the field of display technology, and in particular, to a light-emitting device and a manufacturing method thereof, and a display panel. Background technique [0002] Quantum dots are quasi-zero-dimensional nano-semiconductor materials composed of a small number of atoms or atomic groups, usually with a three-dimensional scale of 1-10 nanometers. Quantum dots have unique photoluminescence and electroluminescence properties, with low power consumption, high efficiency, and response speed. It has the advantages of fast speed and light weight, high academic value and good business prospects. [0003] Using the light-emitting properties of quantum dots, quantum dots can be applied to organic light-emitting devices. At present, quantum dots are mostly used in light-emitting devices to obtain white light, which is achieved through a multi-layer structure, that is, red light quantum dots, green light quantum dots and blue light...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned method of obtaining white light by using a multi-layer structure requires the production of three light-emitting layers of different colors and the three layers of light-emitting layers are realized by hierarchical stacking. The preparation process is complicated, and the luminous efficiency of blue light quantum dots is low. Performance also suffers

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