Optical member
AssigneeNitto Denko Corporation
InventorKozo Nakamura
Life of this patent
Estimating the term…
Abstract
There is provided an optical member capable of achieving a liquid crystal display apparatus that is thin and has extremely high brightness. An optical member of the present invention includes: a first member having a function of converting direction of light; and a second member laminated on the first member via an adhesion layer. The adhesion layer has void portions, and non-contact portions are defined at an interface between the adhesion layer and the first member and/or the second member, and the adhesion layer is brought into contact with each of the first member and the second member in four corner portions of the optical member in plan view.
Claims11
An optical member, comprising:
- a first member having a function of converting direction of light;
- and
- a second member laminated on the first member via an adhesion layer,
- wherein the adhesion layer has void portions, and non-contact portions are defined at an interface between the adhesion layer and at least one of the first member and the second member, and
- wherein the adhesion layer is brought into contact with each of the first member and the second member in four corner portions of the optical member in plan view.
An optical member, comprising:
- a prism sheet;
- and
- a second member laminated on the prism sheet via an adhesion layer, the second member being a laminate of a polarizing plate and a reflective polarizer,
- wherein the adhesion layer has void portions, and non-contact portions are defined at an interface between the adhesion layer and at least one of the prism sheet and the second member,
- wherein the adhesion layer is brought into contact with each of the prism sheet and the second member in four corner portions of the optical member in plan view,
- wherein the void portions of the adhesion layer include a through-hole that penetrates through the adhesion layer in a thickness direction thereof, and
- wherein a void ratio of the adhesion layer in plan view is from 70% to 90%.
Dependencies are inferred from the claim text.