Display apparatus

Patent metadata

Field	Value
Publication number	US-9952458-B2
Application number	US-201414784238-A
Country	US
Kind code	B2
Filing date	Mar 27, 2014
Priority date	Mar 27, 2014
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

A display apparatus, comprising: a light source emitting light; a display panel displaying an image on a front face of the display panel, and facing the light source; and a diffusion section arranged between the light source and the display panel, wherein the diffusion section includes a diffusion sheet-fixed to a circumferential portion of the display panel via a frame body, and facing the display panel with a distance between the diffusion sheet and the display panel, and an optical sheet arranged in a gap between the display panel and the diffusion sheet.

First claim

The invention claimed is:

1. A display apparatus, comprising:
a light source emitting light;
a display panel displaying an image on a front face of the display panel, and facing the light source; and
a diffusion section arranged between the light source and the display panel,
wherein the diffusion section comprises:
a diffusion sheet fixed to a circumferential portion of the display panel via a frame body, and facing the display panel with a distance between the diffusion sheet and the display panel, and
an optical sheet arranged in a gap between the display panel and the diffusion sheet,
wherein the diffusion sheet is suspended to the display panel by the frame body so as to be supported by the display panel,
a size of an outer circumference of the frame body is approximately the same as that of an outer circumference of the diffusion sheet, and
the frame body is fixed to a circumferential portion of the diffusion sheet by an adhesion layer.

2. The display apparatus according to claim 1 , wherein
the frame body includes a missing part formed by cutting a circumferential part of the frame body,
the optical sheet includes a protrusion which protrudes from a circumferential portion of the optical sheet outward, and
the protrusion is engaged with the missing part.

3. The display apparatus according to claim 2 , wherein
the protrusion includes a locking part which protrudes in a direction orthogonal to a protruding direction of the protrusion, and
the locking part is locked to the frame body.

4. The display apparatus according to claim 1 , wherein
the optical sheet includes an insertion hole,
the frame body includes a protrusion which vertically protrudes with respect to a face of the optical sheet, and
the protrusion is inserted in the insertion hole.

5. The display apparatus according to claim 1 , wherein
the optical sheet includes a fitting protrusion which protrudes from a circumferential portion of the optical sheet outward, and
the frame body includes a fitting recess, which s fitted onto the fitting protrusion, in an inner circumferential surface of the frame body.

6. The display apparatus according to claim 1 , wherein a supporting member for supporting the diffusion sheet from a side of the light source is not provided.

7. A display apparatus, comprising:
a light source emitting light;
a display panel displaying an image on a front face of the display panel, and facing the light source; and
a diffusion section arranged between the light source and the display panel,
wherein the diffusion section comprises:
one or more optical sheets fixed to a circumferential portion of the display panel or a circumferential portion of one of the one or more optical sheets through one or more first frame bodies; and
a diffusion sheet fixed to a circumferential portion of one of the one or more optical sheets through a second frame body,
wherein the diffusion sheet is suspended to the display panel by the one or more first frame bodies and the second frame body so as to be supported by the display panel,
sizes of outer circumferences of the one or more first frame bodies and the second frame body are approximately the same as those of outer circumferences of the diffusion sheet and the one or more optical sheets, and
the second frame body is fixed to a circumferential portion of the diffusion sheet by an adhesion layer.

8. The display apparatus according to claim 1 , wherein
an entire of the frame body is disposed between the display panel and the diffusion sheet.

9. The display apparatus according to claim 7 , wherein
an entire of the first frame body is disposed between the display panel and the optical sheet, and an entire of the second frame body is disposed between the optical sheet and the diffusion sheet.

10. The display apparatus according to claim 7 , wherein a supporting member for supporting the diffusion sheet from a side of the light source is not provided.

Assignees

• Sakai Display Products Corp

Inventors

• Yoshikawa Takahiro
• Negoro Kazuhiko

Classifications

• G02F1/133504

  Diffusing, scattering, diffracting elements (associated to illuminating devices G02F1/133606) · CPC title

• G02F2001/133567

  Physics · mapped topic

• G02F2001/133317

  Physics · mapped topic

• G02F1/133608

  including particular frames or supporting means · CPC title

• G02F1/133308 Primary

  Support structures for LCD panels, e.g. frames or bezels · CPC title