Film, backlight module and display device

Patent metadata

Field	Value
Publication number	US-10324248-B2
Application number	US-201715567872-A
Country	US
Kind code	B2
Filing date	Apr 7, 2017
Priority date	Aug 23, 2016
Publication date	Jun 18, 2019
Grant date	Jun 18, 2019

Abstract

A film, a backlight module and a display device are provided. The film includes: a first body having a platy structure, a protrusion protruded from an edge of the first body in a plane where the first body is located, and a positioning structure intersected with one surface of the protrusion wherein the positioning structure includes a second body and one or more openings; the second body includes a blocking portion and a connecting portion; the blocking portion is connected with the protrusion through the connecting portion; and the one or more openings are disposed between the blocking portion and the protrusion.

First claim

The invention claimed is:

1. A film, comprising:
a first body having a platy structure, a protrusion protruded from an edge of the first body in a plane where the first body is located, and a positioning structure intersected with one surface of the protrusion, wherein the positioning structure includes a second body and one or more openings; the second body includes a blocking portion and a connecting portion; the blocking portion is connected with the protrusion through the connecting portion; and the one or more openings are disposed between the blocking portion and the protrusion;
wherein the connecting portion includes a first connecting portion close to the protrusion and a second connecting portion close to the blocking portion; the first connecting portion is intersected with the second connecting portion; the first connecting portion and the second connecting portion have a platy structure; an angle between the first connecting portion and the second connecting portion is about 90 degrees; an angle between the blocking portion and the second connecting portion is about 180 degrees; and an angle between the first connecting portion and the protrusion is about 90 degrees.

2. The film according to claim 1 , wherein the one or more openings have an edge close to the protrusion, and the edge is level with the surface of the protrusion.

3. The film according to claim 1 , wherein a length of the one or more openings is ½ to ⅔ of a length of the positioning structure in a direction of an intersecting line of the positioning structure and the protrusion.

4. The film according to claim 1 , wherein the positioning structure includes a plurality of openings; and the plurality of openings is sequentially arranged along a direction of an intersecting line of the positioning structure and the protrusion.

5. The film according to claim 1 , wherein the connecting portion has a planar surface.

6. The film according to claim 5 , wherein an angle between the connecting portion and the protrusion is about 90 degrees.

7. The film according to claim 6 , wherein an angle between the blocking portion and the connecting portion is about 90 degrees or 180 degrees.

8. The film according to claim 7 , wherein the angle between the blocking portion and the connecting portion is about 90 degrees; and the blocking portion and the protrusion are respectively disposed on both sides of a plane where the connecting portion is located.

9. The film according to claim 1 wherein the protrusion includes one or more openings; and the one or more openings of the protrusion are communicated with the one or more openings of the positioning structure.

10. The film according to claim 1 , wherein the blocking portion includes a first blocking portion and a second blocking portion; the first blocking portion is connected with the protrusion through the connecting portion; an angle between the first blocking portion and the connecting portion is about 180 degrees; and an angle between the second blocking portion and the first blocking portion is about 90 degrees.

11. The film according to claim 1 , wherein the connecting portion includes a first part intersected with the protrusion and provided with a plane; and an angle between the first part and the protrusion is greater than 0 degree and less than 180 degrees.

12. The film according to claim 11 , wherein the angle between the first part and the protrusion is about 90 degrees.

13. The film according to claim 1 , wherein the film is a diffuser.

14. A backlight module, comprising the film according to claim 1 .

15. The backlight module according to claim 14 , further comprising a frame, wherein the frame includes a groove disposed on an inner side of the frame and recessed into a body of the frame; the film is disposed in the frame; and the protrusion of the film is disposed in the groove of the frame to position the film.

16. The backlight module according to claim 14 , further comprising a second film, wherein the second film includes a body having a platy structure and a protrusion protruded from an edge of the body of the second film in a plane where the body of the second film is located; and the protrusion of the second film passes through the one or more openings of the positioning structure to position the second film.

17. The backlight module according to claim 16 , wherein the protrusion of the second film includes a first protrusion close to the body of the second film and one or more second protrusions protruded from an edge of the first protrusion away from the body of the second film; and the one or more second protrusions pass through the one or more openings of the positioning structure.

18. The backlight module according to claim 17 , wherein the frame includes two projections projected from both ends of the groove to the middle of the groove, between the groove of the frame and an outer side of the frame; the two projections are spaced from each other in an extension direction of the frame; and at least one part of the blocking portion of the first film is lapped over the two projections.

19. A display device, comprising the backlight module according to claim 1 .

Assignees

• Boe Technology Group Co Ltd
• Hefei Boe Display Lighting Co
• Hefei Boe Dislay Lighting Co Ltd

Inventors

• Xia Jitai
• Zhang Qiping
• Sun Wenbo

Classifications

• G02B6/0088

  of the light guide or other optical sheets in the package · CPC title

• G02F1/133608

  including particular frames or supporting means · CPC title

• G02F1/133606 Primary

  including a specially adapted diffusing, scattering or light controlling members · CPC title

• G02B6/0055

  Reflecting element, sheet or layer · CPC title

• G02B6/0051 Primary

  Diffusing sheet or layer · CPC title