Flexible display substrate, manufacturing method thereof, and flexible display device

Abstract

The invention discloses a flexible display substrate, a manufacturing method thereof, and a flexible display device. The flexible display substrate includes: a flexible substrate, a thin film transistor and a light emitting device are formed on the flexible substrate, a light blocking layer is formed between the flexible substrate and the thin film transistor, and the light blocking layer is used to block the Laser light irradiated on one side of the flexible substrate. In the flexible display substrate and its manufacturing method and the technical solution of the flexible display device provided by the present invention, a light-blocking layer is formed between the flexible substrate and the thin film transistor, and the light-blocking layer can block the laser light irradiated from the side of the flexible substrate, avoiding the The laser causes damage to the thin film transistor, thereby avoiding the threshold voltage drift of the thin film transistor and the failure of the characteristics of the thin film transistor, thereby avoiding the problem that the display effect of the flexible display substrate decreases or even cannot be displayed normally after laser stripping.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a flexible display substrate, a manufacturing method thereof, and a flexible display device. Background technique [0002] The flexible display device has the advantages of being convenient to carry and being bendable and curlable, so it has become a research and development hotspot in current display technology. [0003] In the prior art, the manufacturing method of a flexible display substrate generally includes: coating a flexible substrate on a carrier substrate, and preparing a thin film transistor (Thin Film Transistor, TFT for short) and an organic light-emitting diode (Organic Light-Emitting Diode) on the flexible substrate. , referred to as: OLED) to form a flexible display substrate, after the preparation is completed, the fabricated flexible display substrate is peeled off from the carrier substrate. Laser lift-off is a commonly used flexible display substrate lift-o...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a flexible display substrate, its manufacturing method and a flexible display device, which are used to avoid the threshold voltage drift of the thin film transistor and the failure of the characteristics of the thin film transistor, so as to avoid the decline of the display effect of the flexible display substrate after laser stripping or even the failure of normal display. question

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