Display panel and display device

A display panel and flexible display technology, applied in the direction of identification devices, instruments, etc., can solve the problems of device layer damage of display modules, difficult restoration of flat state, large elastic modulus, etc., to achieve good bending display, strain reduction, The effect of improving bending performance
CN106328003AActive Publication Date: 2017-01-11BOE TECH GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BOE TECH GRP CO LTD
Publication Date
2017-01-11

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Abstract

The invention provides a display panel and a display device. The display panel comprises a flexible display substrate and a protective cover plate. The display substrate is covered with the protective cover plate, the protective cover plate comprises a flexible area, and the flexible area corresponds to a folding area located on the flexible display substrate, and is made from a material with the elasticity modulus smaller than 100 MPa and the tensile strength larger than 50 MPa. When the display panel is bent, a neutral layer (namely, a film layer with the stress of 0 in the bending process) can move towards a device layer (namely, a luminescent device layer) in the flexible display substrate, and is closer to the device layer in the flexible display substrate accordingly, the stress of the device layer in the flexible display substrate is reduced, the strain after the device layer in the flexible display substrate suffers from the stress effect is further reduced, the display panel is bent and then can further recover the smooth stage in the short time, and finally, damage to all the film layers in the display-panel bending process is reduced or avoided.
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Description

technical field

[0001] The present invention relates to the field of display technology, in particular, to a display panel and a display device. Background technique

[0002] With the development of flexible display screens, people's expectations for foldable display products are getting higher and higher.

[0003] At present, flexible display modules usually include HC (hard coating) protective layer, touch screen, polarizer, display screen and other film structures. The HC protective layer generally uses materials with a large elastic modulus to protect the foldable display screen. . At present, the overall thickness of the flexible display module is relatively thick, and because the elastic modulus of the HC protective layer is relatively large, when the flexible display module is bent, it is easy to make the neutral layer (that is, the film layer whose stress is 0 during the bending process) ) is far away from the device layer of the display module, which in turn leads...

Claims

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