Optical element package
An optical packaged body capable of preventing generation of a wrinkle, deflection, and warpage, capable of being thinned is provided. The optical package body includes a support medium and a packaging film that covers the support medium in a state of being applied with shrinkage force. The packaging film has an optical function section that acts on light from a light source in at least one of a first region into which the light from the light source enters and a second region from which the light from the light source is emitted after passing through the optical packaged body when the light source is arranged on one face side of the optical packaged body.
1. An optical packaged body comprising:
a support medium; and
a packaging film that covers the support medium and is in close contact with the support medium in a state of being applied with tension in an in-plane direction,
wherein the packaging film has an optical function section that acts on light from a light source in at least one of a first region into which the light from the light source enters and a second region from which the light from the light source is emitted after passing through the optical packaged body when the light source is arranged on one face side of the optical packaged body,
the optical function section has a plurality of convex sections, and
the plurality of convex sections are arranged in parallel in one direction, are arranged in parallel in a direction crossing the one direction,
and have in-plane refractive index anisotropy.
2. The optical packaged body according to claim 1 , wherein the plurality of convex sections have in-plane shape anisotropy.
3. The optical packaged body according to claim 2 , wherein each of the convex sections has a columnar shape extending in the one direction, and
a refractive index in the one direction in each of the convex sections is larger than a refractive index in the direction crossing the one direction in each of the convex sections.
4. The optical packaged body according to claim 2 , wherein each of the convex sections has a columnar shape extending in the one direction, and
a refractive index in the one direction in each of the convex sections is smaller than a refractive index in the direction crossing the one direction in each of the convex sections.
5. The optical packaged body according to claim 1 , wherein in the packaging film, the plurality of convex sections are provided in at least one of a surface on the support medium side and a surface on the other side of the support medium.
6. The optical packaged body according to claim 1 , wherein the packaging film is made of a material having at least one characteristics of heat shrinkable, stretching properties, and shrink characteristics by energy rays.
7. The optical packaged body according to claim 1 comprising:
one or a plurality of optical sheets, wherein
the packaging film covers the support medium and the one or the plurality of optical sheets.
8. The optical packaged body according to claim 7 , wherein the support medium and the optical sheet are layered on each other to form a stack.
9. The optical packaged body according to claim 1 , wherein the support medium is a diffusion plate.
10. The optical packaged body according to claim 1 , wherein the optical function section is formed in an entire region corresponding to a display region of a display panel when the display panel driven based on an image signal is arranged on the other face side of the optical packaged body.
11. The optical packaged body according to claim 1 , wherein the optical function section is formed integrally with a region other than the optical function section in the packaging film.
12. The optical packaged body according to claim 1 , wherein a thickness of the packaging film ranges from 5 μm to 100 μm.
13. The optical packaged body according to claim 1 , wherein the packaging film contains a material having an infrared absorption band.
14. The optical packaged body according to claim 1 , wherein each of the convex sections has a columnar shape extending in one direction, and
a surface of each of the convex sections is composed of at least one of a curved face and a plurality of plain faces having different inclined angles.
15. The optical packaged body according to claim 1 , wherein the plurality of convex sections extend in one direction, and are arranged in parallel in a direction crossing the one direction.
16. The optical packaged body according to claim 1 , wherein each of the convex sections has an elliptical shape or an aspherical shape.
17. The optical packaged body according to claim 1 , wherein each of the convex sections is integrally formed from the same material as a material of a portion contacted with the convex section in the packaging film.
18. The optical packaged body according to claim 1 , wherein each of the convex sections is formed from a different material as a material of a portion contacted with the convex section in the packaging film.
19. The optical packaged body according to claim 1 , wherein the optical function section contains a plurality of fine particles.
20. An illuminating device comprising:
an optical packaged body;
a light source emitting light toward the optical packaged body; and
a housing supporting the light source and the optical packaged body, wherein the optical packaged body includes
a support medium and
a packaging film that covers the support medium and is in close contact with the support medium in a state of being applied with tension in an in-plane direction, and
the packaging film has an optical function section that acts on the light from the light source in at least one of a first region into which the light from the light source enters and a second region from which the light from the light source is emitted after passing through the optical packaged body,
the optical function section has a plurality of convex sections, and
the plurality of convex sections are arranged in parallel in one direction, are arranged in parallel in a direction crossing the one direction, and have in-plane refractive index anisotropy.
21. The illuminating device according to claim 20 , wherein the optical function section is formed in an entire region corresponding to a display region of a display panel.
22. A display unit comprising:
a display panel driven based on an image signal;
a light source emitting light for illuminating the display panel; and
an optical packaged body provided between the display panel and the light source, wherein
the optical packaged body includes
a support medium and
a packaging film that covers the support medium and is in close contact with the support medium in a state of being applied with tension in an in-plane direction, and
the packaging film has an optical function section that acts on the light from the light source in at least one of a first region into which the light from the light source enters and a second region from which the light from the light source is emitted after passing through the optical packaged body,
the optical function section has a plurality of convex sections, and
the plurality of convex sections are arranged in parallel in one direction, are arranged in parallel in a direction crossing the one direction, and have in-plane refractive index anisotropy.
23. A method of manufacturing an optical packaged body comprising:
stretching a flat first resin film that is a resin having at least one characteristics of heat shrinkable, stretching properties, and shrink characteristics by energy rays and shows birefringence in one in-plane direction or both in the one direction and in a direction crossing the one direction, thereby generating in-plane refractive index anisotropy to the first resin, and then, on at least one face of the first resin film after being stretched, forming an optical function section having a plurality of convex sections arranged in parallel in one direction, and arranged in parallel in a direction crossing the one direction;
arranging a support medium opposed to the optical function section, layering the first resin film formed with the optical function section and a second resin film having at least one characteristics of heat shrinkable, stretching properties, and shrink characteristics by energy rays with the support medium in between, and then bonding the first resin film and the second resin film to each other; and
shrinking the first resin film formed with the optical function section and the second resin film, and bringing into close contact with the support medium in a state of being applied with tension in an in-plane direction.
24. A method of manufacturing an optical packaged body comprising:
forming an optical function section having a plurality of convex sections arranged in parallel in one direction, and arranged in parallel in a direction crossing the one direction on at least one face of a flat first resin film, the first resin film being a resin having at least one of heat shrinkable, stretching properties, and shrink characteristics by energy rays, and showing birefringence, and then stretching the first resin film formed with the optical function section in one in-plane direction or both in the one direction and in a direction crossing the one direction, thereby generating in-plane refractive index anisotropy to the optical function section;
arranging a support medium opposed to the optical function section, layering the first resin film after being stretched and a second resin film having at least one characteristics of heat shrinkable, stretching properties, and shrink characteristics by energy rays with the support medium in between, and then bonding the first resin film and the second resin film to each other; and
shrinking the first resin film after being stretched and the second resin film, and bringing into close contact with the support medium in a state of being applied with tension in an in-plane direction.