Organic light-emitting display substrate, preparation method thereof and organic light-emitting display device

Abstract

The invention relates to an organic light-emitting display substrate, a preparation method thereof and an organic light-emitting display device. The organic light-emitting display substrate comprisesa display area and an opening area located in the display area. The preparation method of the organic light-emitting display substrate comprises the steps: forming a flexible substrate on a supportingsubstrate, wherein the flexible substrate comprises an open pore, and the open pore is located in the open pore area; forming an organic light-emitting device layer on one side, far away from the support substrate, of the flexible substrate; forming a packaging layer on one side, far away from the flexible substrate, of the organic light-emitting device layer, wherein the packaging layer covers the organic light-emitting device layer and the opening, the packaging layer comprises a first to-be-etched part, the first to-be-etched part is located in the open pore, and the extending direction ofthe first to-be-etched part intersects with the side wall of the open pore; etching the first to-be-etched part, and removing the first to-be-etched part; and stripping the support substrate from theflexible substrate to obtain the organic light-emitting display substrate. According to the embodiment of the invention, the defect that the packaging layer is peeled off due to the fact that the supporting substrate is peeled off from the flexible substrate can be overcome.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an organic light-emitting display substrate, a preparation method thereof, and an organic light-emitting display device. Background technique [0002] In related technologies, flexible organic light-emitting (OLED) display devices have the advantages of low power consumption, wide color gamut, thinness, and shapeability, and are widely used in portable electronic devices, wearable devices, instant messaging devices, virtual reality devices, etc. Stretchable flexible display devices are a new direction for the development of display technology. A stretchable flexible display device is a deformable and bendable display device made of flexible materials, and its size can also be enlarged and stretched. [0003] The stretchable flexible display device may include a flexible substrate and an encapsulation layer, the flexible substrate may include an opening, and the encapsul...

AI Technical Summary

Problems solved by technology

In the process of preparing a stretchable flexible display device, the flexible base substrate is located on the rigid support substrate, and part of the encapsulation layer is adhered to the rigid support substrate through the opening. When the rigid support substrate and the flexible base substrate are separated, it is easy to Part of the encapsulation layer is peeled off, which leads to failure of the encapsulation layer and reduces the reliability of the display device

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