Flexible display module and sliding and rolling display device
A flexible display module and a sliding and rolling display device are provided. The module includes: a flexible panel; a cover plate disposed on a displaying side of the flexible panel; and a support layer disposed on a non-displaying side of the flexible panel; where the cover plate includes a soft impact resistant layer and a rigid reinforcement layer, the soft impact resistant layer is disposed on a side of the rigid reinforcement layer away from the flexible panel, and the soft impact resistant layer has a modulus of 1 MPa to 1 Gpa, and the rigid reinforcement layer has a modulus of more than 5 Gpa.
1 . A flexible display module, comprising:
a flexible panel, wherein the flexible panel comprises a displaying side and a non-displaying side opposite the displaying side;
a cover plate, wherein the cover plate is disposed on the displaying side of the flexible panel; and
a support layer, wherein the support layer is disposed on the non-displaying side of the flexible panel;
wherein the cover plate comprises at least one soft impact resistant layer and at least one rigid reinforcement layer, the soft impact resistant layer is disposed on a side of the rigid reinforcement layer away from the flexible panel, and the soft impact resistant layer has a modulus of 1 MPa to 1 Gpa, and the rigid reinforcement layer has a modulus of more than 5 Gpa;
wherein the material of the soft impact resistant layer is a thermoplastic polyurethane elastomer rubber with a film layer thickness of 0.03 mm to 0.2 mm;
wherein the material of the rigid reinforcement layer is selected from at least one of ultra-thin glass, colorless polyimide or polyethylene terephthalate, wherein a film layer thickness of the rigid reinforcement layer is 0.03 mm to 0.15 mm.
2 . The flexible display module according to claim 1 , wherein
when the material of the rigid reinforcement layer is ultra-thin glass with a thickness of less than 100 μm, the film layer thickness of the rigid reinforcement layer is 0.03 mm-0.07 mm;
when the material of the rigid reinforcement layer is colorless polyimide or polyethylene terephthalate, the film layer thickness of the rigid reinforcement layer is 0.03 mm to 0.15 mm.
3 . The flexible display module according to claim 1 , wherein
the soft impact resistant layer is composited with the rigid reinforcement layer to form a composite structural film layer; or
the soft impact resistant layer is adhered to the rigid reinforcement layer by a clear adhesive material, and the clear adhesive material is removable or peelable so that the soft impact resistant layer is replaceable.
4 . The flexible display module according to claim 1 , wherein
the rigid reinforcement layer is adhered to the displaying side of the flexible panel via an optical clear adhesive layer.
5 . The flexible display module according to claim 4 , wherein
the optical clear adhesive layer has a modulus of 20 KPa to 100 MPa.
6 . The flexible display module according to claim 1 , wherein
the support layer has a modulus of 0.3 MPa to 10 Mpa.
7 . The flexible display module according to claim 6 , wherein
the support layer is made of a hard material and distributed in a mesh pattern.
8 . The flexible display module according to claim 7 , wherein
an area percentage of the mesh pattern in the support layer is greater than or equal to 40%.
9 . The flexible display module according to claim 7 , wherein
the hard material includes at least one of a metallic material or a carbon fiber.
10 . The flexible display module according to claim 1 , wherein
the flexible display module further comprises an anti-reflection sheet disposed between the cover plate and the flexible panel, and the anti-reflection sheet comprises a substrate and an anti-reflection functional film formed on the substrate; or
the flexible display module further comprises: an anti-reflection functional film integrated on a side of the cover plate near the flexible panel using the cover plate as a substrate; or
the flexible display module further comprises: an anti-reflection functional film integrated on the displaying side of the flexible panel using the flexible panel as a substrate.
11 . The flexible display module according to claim 10 , wherein
the anti-reflection sheet is a polarizer; or the anti-reflection functional film is a polarizing functional layer.
12 . The flexible display module according to claim 1 , wherein
the flexible display module further comprises: a neutral layer adjustment layer, wherein the neutral layer adjustment layer is disposed between the support layer and the flexible panel, or the neutral layer adjustment layer is integrated on a side of the support layer near the flexible panel, and/or the non-displaying side of the flexible panel; or
the support layer is directly connected to the non-displaying side of the flexible panel, and the stresses of the flexible panel and all the film layers located on the displaying side of the flexible panel are matched, to enable a predetermined film layer in the flexible display module to be in a stress neutral layer position.
13 . A sliding and rolling display device, comprising: the flexible display module as claimed in claim 1 .