Flexible glass membrane,method for manufacturing the same,and electronic device comprising the same

Patent metadata

Field	Value
Publication number	US-2020198300-A1
Application number	US-201916706877-A
Country	US
Kind code	A1
Filing date	Dec 9, 2019
Priority date	Dec 25, 2018
Publication date	Jun 25, 2020
Grant date	—

Abstract

A flexible glass membrane, a method for manufacturing the flexible glass membrane, and an electronic device including the flexible glass membrane are disclosed. The flexible glass membrane includes a hot-melt adhesive layer, a thermoplastic polyurethane film layer, a base coating layer, a drawing-transferring layer, an optical coating layer, and an ink layer. The hot-melt adhesive layer, the thermoplastic polyurethane film layer, the base coating layer, the drawing-transferring layer, the optical coating layer, and the ink layer may be successively stacked on one another.

First claim

What is claimed is:

1 . A flexible glass membrane, having a multilayer structure comprising a hot-melt adhesive layer, a thermoplastic polyurethane film layer, a base coating layer, a drawing-transferring layer, an optical coating layer, and an ink layer;
wherein the hot-melt adhesive layer, the thermoplastic polyurethane film layer, the base coating layer, the drawing-transferring layer, the optical coating layer, and the ink layer are successively stacked on one another.

2 . The flexible glass membrane according to claim 1 , wherein the flexible glass membrane is arranged on a glass cover having a curved configuration; the ink layer is attached to an inner surface of the glass cover.

3 . The flexible glass membrane according to claim 1 , further comprising an anti-explosive layer arranged on a surface of the ink layer that faces away from the optical coating layer;
wherein the flexible glass membrane is arranged on a glass cover having a curved configuration, and the anti-explosive layer is attached to an inner surface of the glass cover.

4 . The flexible glass membrane according to claim 1 , wherein the hot-melt adhesive layer is made of xylene sol.

5 . The flexible glass membrane according to claim 1 , wherein the flexible glass membrane has a glass transition point ranged between an ambient temperature and an operative temperature of ink and drawing adhesive.

6 . An electronic device, comprising:
a front cover; a back cover, engaged with the front cover and comprising an inner surface facing towards the front cover; and a flexible glass membrane, comprising a hot-melt adhesive layer, a thermoplastic polyurethane film layer, a base coating layer, a drawing-transferring layer, an optical coating layer, and an ink layer; wherein the hot-melt adhesive layer, the thermoplastic polyurethane film layer, the base coating layer, the drawing-transferring layer, the optical coating layer, and the ink layer are successively stacked on one another.

7 . The electronic device according to claim 6 , wherein the ink layer is attached to the inner surface of the back cover.

8 . The electronic device according to claim 6 , further comprising an anti-explosive layer arranged on a surface of the ink layer that faces away from the optical coating layer;
wherein the anti-explosive layer is attached to the inner surface of the back cover.

9 . The electronic device according to claim 6 , wherein the back cover is a glass cover having a curved configuration.

10 . The electronic device according to claim 6 , wherein the hot-melt adhesive layer is made of xylene sol.

11 . The electronic device according to claim 1 , wherein the flexible glass membrane has a glass transition point ranged between an ambient temperature and an operative temperature of ink and drawing adhesive.

12 . A method for manufacturing a flexible glass membrane, comprising:
providing a release film layer, a thermoplastic polyurethane film layer, and a base coating layer; wherein the release film layer, the thermoplastic polyurethane film layer, and the base coating layer are successively stacked on one another; producing a drawing-transferring layer by transferring a texture on a surface of the base coating layer facing away from the thermoplastic polyurethane film layer; producing an optical coating layer by performing optical coating on a surface of the drawing-transferring layer facing away from the base coating layer; producing an ink layer by printing a pattern on a surface of the optical coating layer facing away from the drawing-transferring layer; and producing a hot-melt adhesive layer by peeling off the release film layer, coating a hot-melt adhesive on a surface of the thermoplastic polyurethane film layer facing away from the base coating layer.

13 . The method according to claim 12 , further comprising:
producing an anti-explosive layer on a surface of the ink layer that faces away from the optical coating layer.

14 . The method according to claim 12 , wherein the hot-melt adhesive is made of xylene sol.

15 . The method according to claim 12 , wherein the providing the release film layer, the thermoplastic polyurethane film layer, and the base coating layer, comprises:
providing the release film layer, the thermoplastic polyurethane film layer, and the base coating layer, and a protective film; wherein the release film layer, the thermoplastic polyurethane film layer, and the base coating layer, and the protective film are successively stacked on one another.

16 . The method according to claim 15 , before the producing the drawing-transferring layer, the method further comprising:
peeling off the protective film.

17 . The method according to claim 12 , the producing the drawing-transferring layer further comprising: curing the texture by using a UV light source.

Assignees

• Aac Technologies Pte Ltd

Inventors

• Liu Wei
• Jiang Taiming
• Chen Ji

Classifications

• B32B2307/712

  Weather resistant · CPC title

• B32B27/40

  comprising polyurethanes · CPC title

• B32B2457/00

  Electrical equipment · CPC title

• B32B27/06

  as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a layer of a particular substance B32B9/045; next to a bituminous or tarry layer B32B11/046; next to a water setting substance layer B32B13/12; next to a metal layer B32B15/08; next to a glass layer B32B17/10; next to a layer formed of natural mineral fibres or particles B32B19/045; next to a wood layer B32B21/08; next to a cellulosic plastic layer B32B23/08; next to a natural or synthetic rubber layer B32B25/08)} · CPC title

• B32B2307/75

  Printability · CPC title