Organic light-emitting display device and manufacturing method thereof

Abstract

The present invention relates to an organic light-emitting display device and a manufacturing method thereof, the method comprising: providing a substrate; setting a first pixel electrode, a pixel defining layer, and a heating grid on the substrate; and setting the pixel defining layer on the periphery of the first pixel electrode ; The heating grid surrounds the first pixel electrode; an organic layer is arranged on the substrate, and the organic layer covers the heating grid and covers the first pixel electrode; the second pixel electrode is arranged on the organic layer; The organic layer contacted by the heat-generating grid reaches at least the threshold temperature of the organic layer. This method raises the temperature of the heating grid to the threshold temperature, so that the corresponding part of the organic layer is in an electrically insulating state, so that crosstalk does not occur between adjacent pixel units, and there is no need to use a high-precision mask during the process of setting the organic layer. , reduce the preparation process and reduce the cost. The display device is prepared by this method.

Description

Technical field [0001] The invention relates to the field of display devices, in particular to an organic light-emitting display device and a preparation method thereof. Background technique [0002] Organic light-emitting display devices have the advantages of self-luminescence, wide viewing angle, short response time, thin thickness, low power consumption, etc., and their applications in the field of display devices are becoming more and more extensive. [0003] For ordinary organic light emitting display devices, a hole injection layer, a hole transport layer, an electron injection layer, and an electron transport layer can promote the movement of charge carriers (holes or electrons). These layers may have relatively high conductivity to improve self-luminous efficiency. However, when these layers are coated on the substrate, the charge carriers will move laterally. When one pixel unit emits light, it will drive the adjacent pixel unit to follow the light, causing crosstalk. S...

AI Technical Summary

Problems solved by technology

However, these layers are coated on the substrate, and the charge carriers will move laterally. When one pixel unit emits light, it will drive the adjacent pixel units to follow and emit light, resulting in crosstalk.

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