Folding display device

Abstract

The invention provides a folding display device. The folding display device is provided with a first display screen with a first connecting portion and a second display screen with a second connectingportion. The first connecting portion and the second connecting portion are provided with binding circuits electrically connected with display circuits on the first display screen and the second display screen respectively, the first connecting portion and the second connecting portion are connected through a bent portion with a connecting circuit, the connecting circuit is electrically connectedwith the binding circuits on the first and second connecting portions, and signal connection between the first display screen and the second display screen is achieved. Compared with the prior art that flexible display devices are directly folded, the thickness of the bent portion can be greatly lowered, the folding display device has the small bent curvature radius, the foldability is enhanced,the good reliability can be still achieved after repeated bending, and the product quality is improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a foldable display device. Background technique [0002] Organic Light Emitting Display (OLED) has self-illumination, low driving voltage, high luminous efficiency, short response time, high definition and contrast, nearly 180° viewing angle, wide operating temperature range, and can realize flexible display and With many advantages such as large-area full-color display, it is recognized by the industry as a display device with the most potential for development. [0003] OLED devices generally include: a substrate, an anode disposed on the substrate, a hole injection layer disposed on the anode, a hole transport layer disposed on the hole injection layer, a light emitting layer disposed on the hole transport layer, a An electron transport layer on the light emitting layer, an electron injection layer on the electron transport layer, and a cathode on the electron inject...

AI Technical Summary

Problems solved by technology

However, if the thickness of each film layer at the bend is increased in order to enhance the structural strength of the bend, the minimum bendable radius of curvature of the device will increase, which is not conducive to folding into a minimum volume. Conversely, if the thickness of each film layer at the bend is reduced in order to enhance the foldability of the foldable display device, the film layers at the bend may be broken during folding, resulting in panel failure

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