Method of manufacturing screen protector having grating sheet

1. A manufacturing method of a screen protector, wherein the screen protector is a laminated structure having a flat outer surface without an interval and at least comprising a first outer cover film, a functional layer composed of a grating sheet and an attaching member, and a second outer cover film and is configured to be disposed on an attaching body on an electronic device in an attaching mode to correspondingly cover a display screen of the electronic device, and the manufacturing method comprises the following steps:

a sheet punching step: sheets constituting the first outer cover film, the second outer cover film, the grating sheet, and the attaching member are cut into specific sizes, respectively;

a functional layer forming step: the grating sheet and the attaching member are disposed and attached to a front surface of the second outer cover film to form the functional layer, and the attaching member is joined to the grating sheet in such a manner that a surface of the attaching member is aligned with a surface of the grating sheet;

a half-finished product forming step: a rear surface of the first outer cover film is bonded to the grating sheet and the attaching member to form a half-finished product; and

a heating and pressing defoaming step: vacuum-pressing is performed on the half-finished product under appropriate conditions, to remove bubbles inside the half-finished product, and the surface of the half-finished product is flattened to obtain the screen protector, wherein the grating sheet has a visual range within a specific angle.

2. The manufacturing method of a screen protector according to claim 1 , wherein prior to the functional layer forming step, the method further comprises an adhesive layer applying step: a viscous adhesive material is respectively applied to the rear surface of the first outer cover film and the front surface of the second outer cover film respectively, to form a first adhesive layer and a second adhesive layer.

3. The manufacturing method of a screen protector according to claim 2 , wherein in the functional layer forming step, the grating sheet and the attaching member are attached to the front surface of the second outer cover film through the second adhesive layer; and in the half-finished product forming step, the grating sheet and the attaching member are attached to the rear surface of the first outer cover film through the first adhesive layer.

4. The manufacturing method of a screen protector according to claim 1 , wherein the grating sheet comprises an outer layer and a grating layer, and the grating layer comprises a plurality of grating walls.

5. The manufacturing method of a screen protector according to claim 1 , wherein the surface of the first outer cover film and/or the second outer cover film is coated with at least one coating, and the coating is selected from any one of an anti-fingerprint coating (having an ultra-low friction coefficient), an anti-glare coating, an anti-reflection coating, an anti-blue light coating, a hard coating, and combinations thereof.

6. The manufacturing method of a screen protector according to claim 1 , wherein there is one or a plurality of attaching members.

7. The manufacturing method of a screen protector according to claim 1 , wherein the attaching member is disposed adjacent to the grating sheet side-by-side.

8. The manufacturing method of a screen protector according to claim 1 , wherein the grating sheet comprises a first receiving groove near an edge of the grating sheet, and the attaching member is received in and fitted to the first receiving groove.

9. The manufacturing method of a screen protector according to claim 8 , wherein the grating sheet further comprises a second receiving groove near the edge of the grating sheet, and the attaching member comprises two half-attaching members, which are received in and fitted to the first receiving groove and the second receiving groove respectively.