OPTICAL SHEET PACKAGED BODY, OPTICAL SHEET UNIT, LIGHTING DEVICE, AND DISPLAY UNIT

• US 20090303413A1
• Filed: 02/13/2008
• Published: 12/10/2009
• Est. Priority Date: 02/13/2007
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Fujimaki, Yoshihiro, Ohta, Eiji, Yamakita, Shigehiro, Ishimori, Taku, Sato, Satoshi, Hoshi, Mitsunari, Maekawa, Yoshiyuki, Abiko, Toru, Kudo, Yasuyuki, Kakinuma, Masayasu, Omura, Taro, Hayashi, Hiroshi, Odagiri, Hirokazu, Yu, Andrew Chakchung
• Application Number:
  US12/296,847
• Publication Number:
  US 20090303413A1
• Time in Patent Office: Days
• US Class Current: 349/62
• CPC Class Codes: G02B 5/02 Diffusing elements; Afocal elements
• CPC Class Codes: G02B 5/045 Prism arrays
• CPC Class Codes: G02B 6/0088 of the light guide or other optical sheets in the package
• CPC Class Codes: G02F 1/133314 Back frames
• CPC Class Codes: G02F 1/133606 including a specially adapted diffusing, scattering or light controlling members
• CPC Class Codes: G02F 2201/54 Arrangements for reducing warping-twist

Abstract

An optical sheet packaged body in which a wrinkle is not generated is provided. The optical sheet packaged body includes a laminated body in which a plurality of optical sheets such as a light source image segmentation sheet, a diffusion plate, a diffusion sheet, and a luminance enhancement film are layered, and a flexible film that wraps around the laminated body and has one or a plurality of openings to expose at least part of an outer edge of the diffusion plate. An exposed portion exposed from at least one of the openings of the diffusion plate is provided with a shape (supported portion) for positioning to a chassis (bottom chassis and middle chassis) supporting the optical sheet packaged body.

Claims

1. An optical sheet packaged body comprising:

a laminated body in which a rectangular support plate having a top face, a bottom face, and side faces and one or a plurality of optical sheets are layered; and

a flexible film wrapping around the laminated body, the flexible film having one or a plurality of openings to expose at least part of an outer edge of the support plate.

2. The optical sheet packaged body according to claim 1, wherein at least one of the openings is provided correspondingly to a corner of the support plate.

3. The optical sheet packaged body according to claim 1, wherein at least one of the openings is provided correspondingly to a whole or a part of one side of the support plate.

4. The optical sheet packaged body according to claim 1, wherein each pail of the top face, the bottom face, and the side faces of the support plate is exposed from at least one of the openings.

5. The optical sheet packaged body according to claim 1, wherein only part of the side face of the support plate is exposed from at least one of the openings.

6. The optical sheet packaged body according to claim 1, wherein an exposed portion that is exposed from at least one of the openings of the support plate is provided with a shape for positioning to a chassis that supports the optical sheet packaged body.

7. An optical sheet unit comprising an optical sheet packaged body, and a chassis supporting the optical sheet packaged body, wherein:

the optical sheet packaged body includes

a laminated body in which a rectangular support plate having a top face, a bottom face, and side faces and one or a plurality of optical sheets are layered, and

a flexible film that wraps around the laminated body and has one or a plurality of openings to expose at least part of an outer edge of the support plate; and

the chassis has a supporting portion that supports the optical sheet packaged body correspondingly to an exposed portion that is exposed from at least one of the openings out of the support plate.

8. An optical sheet unit comprising an optical sheet packaged body, and

a chassis supporting the optical sheet packaged body, wherein:

the optical sheet packaged body includes

a laminated body in which a rectangular support plate having a top face, a bottom face, and side faces and one or a plurality of optical sheets are layered, and

a flexible film that wraps around the laminated body; and

the chassis has a supporting portion that sandwiches the flexible film in a lamination direction of the laminated body and has surface characteristics to easily slide in a direction in which the film is orthogonal to the lamination direction of the laminated body in a portion contacted with the flexible film.

9. A lighting device comprising:

a light source emitting light;

an optical device packaged body into which light emitted from the light source enters; and

one or a plurality of first optical devices into which light emitted from the optical device packaged body enters,

wherein the optical device packaged body has

one or a plurality of second optical devices, and

a packaging member that wraps around the one or the plurality of optical devices.

10. A lighting device comprising:

an optical sheet packaged body;

a light source emitting light toward the optical sheet packaged body; and

a chassis supporting the light source and the optical sheet packaged body,

wherein the optical sheet packaged body has a laminated body in which a rectangular support plate having a top face, a bottom face, and side faces and one or a plurality of optical sheets are layered, and a flexible film wrapping around the laminated body and having one or a plurality of openings to expose at least part of an outer edge of the support plate, and

the chassis has a supporting portion supporting the optical sheet packaged body correspondingly to an exposed portion that is exposed from at least one of the openings of the support plate.

11. The lighting device according to claim 10, wherein the flexible film is formed at least in a region through which the light from the light source passes.

12. A display unit comprising:

a panel driven based on an image signal;

a light source emitting light for illuminating the panel;

an optical sheet packaged body provided between the panel and the light source; and

a chassis supporting the panel, the light source, and the optical sheet packaged body,

wherein the optical sheet packaged body has a laminated body in which a rectangular support plate having a top face, a bottom face, and side faces and one or a plurality of optical sheets are layered, and a flexible film wrapping around the laminated body and having one or a plurality of openings to expose at least part of an outer edge of the support plate, and

the chassis has a supporting portion supporting the optical sheet packaged body correspondingly to an exposed portion that is exposed from at least one of the openings of the support plate.

13. A display unit comprising:

a light source emitting light;

an optical device packaged body into which light emitted from the light source enters;

one or a plurality of first optical devices into which light emitted from the optical device packaged body enters; and

a panel into which light emitted from the one or the plurality of first optical devices enters and which is driven based on an image signal,

wherein the optical device packaged body has

one or a plurality of second optical devices, and

a packaging member that wraps around the one or the plurality of optical devices.

14. An optical sheet packaged body comprising:

a laminated body layering a rectangle support plate and one or a plurality of optical sheets; and

a flexible film wrapping around the laminated body,

wherein while one face in a lamination direction of the laminated body of the laminated body corresponds to a light incidence face, the other face of the laminated body of the laminated body corresponds to a light emitting face, and

a sheet closest to the light incidence face out of the support plate and the one or the plurality of optical sheets has a plurality of first convex portions that extend in one direction and are arranged in parallel in a direction crossing the one direction.

15. The optical sheet packaged body according to claim 14, wherein the respective first convex portions extend almost in parallel with one side of the support plate.

16. The optical sheet packaged body according to claim 14, wherein the respective first convex portions extend in a direction crossing one side of the support plate.

17. The optical sheet packaged body according to claim 14, wherein a sheet secondly closest to the light incidence face out of the support plate and the one or the plurality of optical sheets has a plurality of second convex portions that extend in a direction crossing the extending direction of the first convex portion and are arranged in parallel in the extending direction of the first convex portion.

18. An optical sheet packaged body comprising:

a laminated body layering a rectangle support plate and one or a plurality of optical sheets; and

a flexible film wrapping around the laminated body,

wherein one film in a lamination direction of the laminated body of the flexible film corresponds to a light incidence face, and the other face in the lamination direction of the laminated body of the flexible film corresponds to a light emitting face,

the film corresponding to the light incidence face of the flexible film has a plurality of first convex portions that extend in one direction and are arranged in parallel in a direction crossing the one direction.

19. The optical sheet packaged body according to claim 18, wherein the respective first convex portions extend almost in parallel with one side of the support plate.

20. The optical sheet packaged body according to claim 18, wherein the respective first convex portions extend in a direction crossing the one side of the support plate.

21. The optical sheet packaged body according to claim 18, wherein a sheet secondly closest to the light incidence face out of the support plate and the one or the plurality of optical sheets has a plurality of second convex portions that extend in a direction crossing the extending direction of the first convex portion and are arranged in parallel in the extending direction of the first convex portion.

22. A lighting device comprising an optical sheet packaged body, and a light source emitting light to the optical sheet packaged body, wherein:

the optical sheet packaged body has

a laminated body layering a rectangle support plate and one or a plurality of optical sheets, and

a flexible film that wraps around the laminated body; and

a sheet closest to the light source out of the support plate and the plurality of optical sheets has a plurality of convex portions that extend in one direction and are arranged in parallel in a direction crossing the one direction.

23. The lighting device according to claim 22, wherein the light source is a plurality of point light sources arranged in a matrix, and

the respective convex portions extend in a direction crossing an arrangement direction of the point light sources.

24. The lighting device according to claim 23, wherein one arrangement direction of the plurality of point light sources extends almost in parallel with one side of the support plate, and

the other arrangement direction of the plurality of point light sources extends in parallel with other side crossing the one side of the support plate.

25. The lighting device according to claim 23, wherein one arrangement direction of the plurality of point light sources and the other arrangement direction of the plurality of point light sources extend in directions crossing extending directions of all sides of the support plate.

26. A lighting device comprising an optical sheet packaged body, and a light source emitting light to the optical sheet packaged body, wherein:

the optical sheet packaged body has

a laminated body layering a rectangle support plate and one or a plurality of optical sheets, and

a flexible film wrapping around the laminated body; and

a film closest to the light source of the flexible film has a plurality of convex portions that extend in one direction and are arranged in parallel in a direction crossing the one direction.

27. A display unit comprising a panel driven based on an image signal, a light source emitting light for illuminating the panel, and an optical sheet packaged body provided between the panel and the light source, wherein:

the optical sheet packaged body has

a laminated body layering a rectangle support plate and one or a plurality of optical sheet, and

a flexible film wrapping around the laminated body; and

a sheet closest to the light source out of the support plate and the plurality of optical sheets has a plurality of convex portions that extend in one direction and are arranged in parallel in a direction crossing the one direction.

28. A lighting device comprising:

a panel driven based on an image signal;

a light source emitting light for illuminating the panel; and

an optical sheet packaged body provided between the panel and the light source,

wherein the optical sheet packaged body has

a laminated body layering a rectangle support plate and one or a plurality of optical sheets, and

a flexible film wrapping around the laminated body, and

a film closest to the light source of the flexible film has a plurality of convex portions that extend in one direction and are arranged in parallel in a direction crossing the one direction.