Protective film

Patent metadata

Field	Value
Publication number	US-2021237399-A1
Application number	US-202017012103-A
Country	US
Kind code	A1
Filing date	Sep 4, 2020
Priority date	Feb 3, 2020
Publication date	Aug 5, 2021
Grant date	—

Abstract

A protective film is provided. The protective film includes a release film, a base film which is disposed on the release film and comprises a protective part and a first pull tab part protruding from a first side surface of the protective part, and a first dummy film which is disposed on the release film, does not overlap the base film in a plan view, and comprises a part partially surrounding the first pull tab part, where edges of the base film and edges of the first dummy film are disposed inside edges of the release film in the plan view.

First claim

What is claimed is:

1 . A protective film comprising:
a release film; a base film which is disposed on the release film and comprises a protective part and a first pull tab part protruding from a first side surface of the protective part; and a first dummy film which is disposed on the release film, does not overlap the base film in a plan view, and comprises a part partially surrounding the first pull tab part, wherein edges of the base film and edges of the first dummy film are disposed inside edges of the release film in the plan view.

2 . The protective film of claim 1 , further comprising an adhesive layer which is disposed on the release film and comprises a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is disposed between the release film and the base film, and the second adhesive layer is disposed between the release film and the first dummy film.

3 . The protective film of claim 2 , wherein the base film and the first dummy film overlap the release film in the plan view.

4 . The protective film of claim 3 , wherein the first adhesive layer is disposed only in an area where the release film and the base film overlap and the second adhesive layer is disposed only in an area where the release film and the first dummy film overlap.

5 . The protective film of claim 1 , wherein distances between edges of the protective part and the edges of the release film adjacent to the edges of the protective part in the plan view are about 0.5 to 2 millimeters (mm).

6 . The protective film of claim 1 , wherein distances between the edges of the first dummy film and the edges of the release film adjacent to the edges of the first dummy film in the plan view are about 0.5 to 2 mm.

7 . The protective film of claim 1 , wherein the release film defines a first hole provided in an area overlapping the first pull tab part in the plan view.

8 . The protective film of claim 7 , wherein edges of the first pull tab part are disposed inside edges of the first hole.

9 . The protective film of claim 1 , further comprising a second dummy film, wherein the base film further comprises a second pull tab part protruding from a second side surface of the protective part, and the second dummy film comprises a part partially surrounding the second pull tab part.

10 . The protective film of claim 9 , wherein the release film defines a second hole provided in an area overlapping the second pull tab part in the plan view.

11 . The protective film of claim 10 , wherein edges of the second pull tab part are disposed inside edges of the second hole.

12 . The protective film of claim 1 , wherein distances between the edges of the first pull tab part facing the first dummy film and the part of the first dummy film partially surrounding the first pull tab part in the plan view are about 1 to 3 mm.

13 . The protective film of claim 1 , wherein the first dummy film and the release film are monolithic.

14 . A protective film comprising:
a release film; an adhesive layer which is disposed on the release film; a first film which is disposed on the adhesive layer and comprises a protective part and a protruding part protruding from a side of the protective part; and a second film which is disposed on the adhesive layer and comprises a part disposed adjacent to the protruding part, wherein edges of the first film and edges of the second film are disposed inside edges of the release film in a plan view, and the adhesive layer is disposed only in an area where the release film overlaps the first film and the second film in the plan view.

15 . The protective film of claim 14 , wherein the release film defines a hole provided in an area overlapping the protruding part in the plan view.

16 . The protective film of claim 15 , wherein edges of the protruding part are disposed inside edges of the hole.

17 . The protective film of claim 14 , wherein distances from the edges of the release film to the edges of the first film adjacent to the edges of the release film in the plan view are about 0.5 to 2 mm.

18 . The protective film of claim 14 , wherein distances between the edges of the protruding part facing the second film and the part of the second film disposed adjacent to the protruding part in the plan view are about 1 to 3 mm.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Jae Bok
• Park Hang Gyun
• Park Jin Woo
• Lee Sung Hoon

Classifications

• B32B2307/7246

  Water vapor barrier · CPC title

• B32B2307/732

  Dimensional properties · CPC title

• B32B2307/546

  Flexural strength; Flexion stiffness · CPC title

• B32B7/06 Primary

  permitting easy separation · CPC title

• B32B3/08

  characterised by added members at particular parts {(layer formed of separate pieces of material which are juxtaposed side-by-side B32B3/14, B32B3/18)} · CPC title