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US 2022/0191312 A1Published application
Foldable display module
AssigneeWuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorsGuochun YAN, Zhuo ZHANG, Yongzhen JIA, Chunmei HE, Yuan ZHAO, Xiaomeng HOU
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Abstract
The present application provides a foldable display module. The foldable display module includes a flexible display panel, a first module, and a second module. The flexible display panel is disposed between the first module and the second module. A ratio of a rigidity of the first module to a rigidity of the second module ranges from 0.8 to 1.2.
Claims15
A foldable display module, comprising a flexible display panel, a first module, and a second module;
- wherein the flexible display panel is disposed between the first module and the second module;
- wherein the first module comprises n first submodules, each of the first submodules comprises a first functional layer and a first adhesive layer, the first adhesive layer is disposed between the first functional layer and the flexible display panel, the first functional layer in an i-th first submodule comprises a first elastic modulus E1i and a first thickness H1i, the first adhesive layer in the i-th first submodule comprises a first storage modulus E3i and a third thickness H3i, n is an integer greater than or equal to 1, and i is an integer greater than or equal to 1 and less than or equal to n;
- wherein the second module comprises m second submodules, each of the second submodules comprises a second functional layer and a second adhesive layer, the second adhesive layer is disposed between the second functional layer and the flexible display panel, the second functional layer in a j-th second submodule comprises a second elastic modulus E1j and a second thickness H2j, the second adhesive layer in the j-th second submodule comprises a second storage modulus E4j and a fourth thickness H4j, m is an integer greater than or equal to 1, and j is an integer greater than or equal to 1 and less than or equal to m;
- and
- wherein the first elastic modulus E1i, the first thickness H1i, the first storage modulus E3i, the third thickness H3i, the second elastic modulus E2j, the second thickness H2j, the second storage modulus E4j, and the fourth thickness H4j satisfy the following formula:
- ∑
- 1
- n
-
- E
- 1
-
- i
- ×
- H
- 1
-
- i
- 2
- +
- ∑
- 1
- n
-
- E
- 3
-
- i
- ×
- H
- 3
-
- i
- 2
- =
- α
-
- (
- ∑
- 1
- m
-
- E
- 2
-
- j
- ×
- H
- 2
-
- j
- 2
- +
- ∑
- 1
- m
-
- E
- 4
-
- j
- ×
- H
- 4
-
- j
- 2
- )
- ,
- and
- α represents an allowable coefficient and is greater than or equal to 0.8 and less than or equal to 1.2.
68 more elements
Dependencies are inferred from the claim text.