Preparation method of light-emitting layer and display panel

Abstract

The present invention provides a preparation method of a light-emitting layer and a display device. The precursor sol solution is prepared on an array substrate, the ink containing the light-emitting particles is prepared in the precursor sol solution to obtain the mixed solution, after a voltage is applied to the mixed solution, the light-emitting particles directionally move under the action of an electric field, and the mixed solution is subjected to thermocuring treatment, so that the light-emitting layer of the present invention is finally formed. The structure of the formed light-emitting layer is of a regular space skeleton structure, and the light-emitting particles are embedded into different skeleton structures, so that the display effect of the light-emitting layer is effectively improved, and the display quality of the display device is improved.

Description

technical field [0001] The invention relates to the field of display panel manufacturing, in particular to a method for preparing a light-emitting layer and a display panel. Background technique [0002] With the continuous improvement of the display panel manufacturing technology, people also put forward higher requirements on the performance and quality of the display panel. [0003] As consumers have higher and higher requirements for high-frequency changes and detailed content of displayed images, high dynamic range (High Dynamic Range, HDR) display technology has attracted widespread attention. Compared with the traditional display technology (standard dynamic range, SDR), the display screen introduced with HDR technology has a higher color gamut and contrast ratio, which is the development direction of the next generation display technology. The light-emitting diode backplane combined with quantum dot (Quantum Dot, QD) technology is applied to traditional liquid cryst...

AI Technical Summary

Problems solved by technology

During the design process, under the action of an electric field, the surface of QD quantum dots can be modified with various ligands such as amine groups, carboxyl groups, and sulfhydryl groups. These ligands can be polarized under an electric field or dissociated during dissolution to produce different electrical properties charges, so that QDs become charged particles of different electrical properties and are deposited on the corresponding electrodes to emit light, so as to obtain patterned QD light-emitting films, thereby improving the performance of display devices. However, in the actual process, in the preparation of QD films When the QD ions cannot completely move according to the set magnetic field effect, such as unnecessary QD deposition and uneven distribution of deposited particles, the deposition efficiency is reduced, and the display quality of the display device is reduced.

[0004] To sum up, in the existing preparation technology, when preparing the quantum dot light-emitting film of the display panel, there are QD particles that cannot completely move according to the set magnetic field effect, and the deposited particles are unevenly distributed during deposition, and the deposition Low efficiency and other issues, and reduce the display quality of the display device, while affecting the improvement of the overall performance of the display device

Images