Cover plate and display device
AssigneesChengdu Boe Optoelectronics Technology Co., Ltd., Boe Technology Group Co., Ltd.
InventorsShaokui Liu, Zhihui Wang, Danping Shen, Wei Zeng, Qiang Tang
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Abstract
Provided is a cover plate. The cover plate includes a substrate, a first buffer layer and a second buffer layer. The substrate includes a first surface and a second surface, and the first surface faces a flexible display panel. The first buffer layer is laminated on the first surface, and an elastic modulus of the first buffer layer ranges from 10 MPa to 2 GPa. The second buffer layer is laminated on the second surface, and an elastic modulus of the second buffer layer ranges from 60 MPa to 7 GPa.
Claims13
A cover plate, wherein the cover plate is applicable to a flexible display panel, the cover plate comprising:
- a substrate comprising a first surface and a second surface opposite to each other, the first surface facing the flexible display panel;
- a first buffer layer laminated on the first surface;
- and
- a second buffer layer laminated on the second surface
- wherein the cover plate further comprises:
- a first elastic layer laminated on a side of the second buffer layer away from the substrate;
- a first support layer laminated on a side of the first elastic layer away from the substrate;
- a protective layer laminated on the side of the second buffer layer away from the substrate, wherein the protective layer is an outermost layer among all layers on the side of the second buffer layer away from the substrate;
- and
- a first adhesive layer adhered between the protective layer and a layer adjacent to the protective layer,
- wherein the protective layer comprises:
- a second support layer laminated on a side of the first adhesive layer away from the substrate;
- and
- a scratch-resistant layer laminated on a side of the second support layer away from the substrate,
- wherein when temperature ranges from 15° C. to 35° C., a viscosity of the first adhesive layer is greater than 700 gf/inch, a creep coefficient of first adhesive layer is greater than 300%, and a restitution coefficient of the first adhesive layer is greater than 80%;
- and
- when the temperature is less than −50° C., the viscosity of the first adhesive layer is less than 30 gf/inch, wherein the first adhesive layer is a pressure-sensitive adhesive layer.
A display device, comprising a cover plate and a flexible display panel laminated in sequence, wherein the cover plate is applicable to the flexible display panel, and comprises:
- a substrate comprising a first surface and a second surface opposite to each other, the first surface facing the flexible display panel;
- a first buffer layer laminated on the first surface;
- and
- a second buffer layer laminated on the second surface,
- wherein the cover plate further comprises:
- a first elastic layer laminated on a side of the second buffer layer away from the substrate,
- wherein the cover plate further comprises:
- a first elastic layer laminated on a side of the second buffer layer away from the substrate;
- a first support layer laminated on a side of the first elastic layer away from the substrate;
- a protective layer laminated on the side of the second buffer layer away from the substrate, wherein the protective layer is an outermost layer among all layers on the side of the second buffer layer away from the substrate;
- and
- a first adhesive layer adhered between the protective layer and a layer adjacent to the protective layer,
- wherein the protective layer comprises:
- a second support layer laminated on a side of the first adhesive layer away from the substrate;
- and
- a scratch-resistant layer laminated on a side of the second support layer away from the substrate,
- wherein when temperature ranges from 15° C. to 35° C., a viscosity of the first adhesive layer is greater than 700 gf/inch, a creep coefficient of first adhesive layer is greater than 300%, and a restitution coefficient of the first adhesive layer is greater than 80%;
- and
- when the temperature is less than −50° C., the viscosity of the first adhesive layer is less than 30 gf/inch, wherein the first adhesive layer is a pressure-sensitive adhesive layer.
Dependencies are inferred from the claim text.