Flexible display substrate as well a manufacturing method thereof and flexible display device

Abstract

The invention discloses a flexible display substrate as well a manufacturing method thereof and a flexible display device. The flexible display substrate comprises a flexible substrate; a thin film transistor and a light emitting device are formed above the flexible substrate; a light blocking layer is formed between the flexible substrate and the thin film transistor and used for blocking laser irradiating from one side of the flexible substrate. According to the technical scheme of the flexible display substrate as well the manufacturing method thereof and the flexible display device, as the light blocking layer is formed between the flexible substrate and the thin film transistor and capable of blocking laser irradiating from one side of the flexible substrate, damage to the thin film transistor caused by the light can be avoided, and therefore, the threshold voltage drift and the characteristics failure of the thin film transistor are avoided, and furthermore, the problems of display effect decline and even normal display failure of the flexible display substrate after laser stripping are avoided.

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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