Polarizing glasses for observing a stereoscopic image

Patent metadata

Field	Value
Publication number	US-9709827-B2
Application number	US-201113187271-A
Country	US
Kind code	B2
Filing date	Jul 20, 2011
Priority date	Jul 13, 2010
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

Polarized glasses including an area for a left eye and an area for a right eye, into which an image signal enters, the areas for the left eye and for the right eye include an optical anisotropic layer and a polarizer respectively, the optical anisotropic layer includes at least one optical anisotropic film, and the optical anisotropic layer has a value calculated by Formula 1 in a range from 50 nm to 500 nm, and a value calculated by Formula 2 in a range from 0.1 to 3:

DX−DY   [Formula 1]

( X−Y )/( Z−Y )  [Formula 2]
where X is the refractive index in the direction of an in-plane slow axis of the optical anisotropic layer, Y represents the refractive index in the direction of an in-plane fast axis of the optical anisotropic layer, Z represents the refractive index in the direction in a thickness of the optical anisotropic layer, and D represents a thickness of the optical anisotropic layer.

First claim

What is claimed is:

1. Polarizing glasses, comprising an area for a left eye and an area for a right eye, into which an image signal enters,
wherein each of the areas for the left eye and for the right eye comprise an optical anisotropic layer and a polarizer respectively, wherein the optical anisotropic layer comprises at least two optical anisotropic films, and wherein the optical anisotropic layer has a value calculated by Formula 1 in a range from 50 nm to 400 nm, and a value calculated by Formula 2 in a range from 0.1 to 3:
DX−DY   [Formula 1]

( X−Y )/( Z−Y )  [Formula 2]

where X is a sum of refractive indices for the at least two optical anisotropic films in the direction of an in-plane slow axis of the optical anisotropic layer, Y is a sum of refractive indices for the at least two optical anisotropic films in the direction of an in-plane fast axis of the optical anisotropic layer, Z is sum of refractive indices for the at least two optical anisotropic films in the direction in a thickness of the optical anisotropic layer, and D is a sum of thicknesses for the at least two optical anisotropic films of the optical anisotropic layer.

2. The polarizing glasses according to claim 1 , wherein a bisector of an angle formed by a slow axis of the optical anisotropic films in the area for the left eye and a slow axis of the optical anisotropic films in the area for the right eye is perpendicular or parallel to a light absorbing axis of the polarizer.

3. The polarizing glasses according to claim 1 , wherein each of the optical anisotropic layers comprise a first A plate or a first B plate respectively, and wherein a bisector of an angle formed by a slow axis of the first A plate or the first B plate in the area for the left eye and a slow axis of the first A plate or the first B plate in the area for the right eye is perpendicular or parallel to a light absorbing axis of the polarizer.

4. The polarizing glasses according to claim 3 , wherein the optical anisotropic layer further comprises at least one selected from a group consisting of a second A plate, a second B plate and a C plate; a slow axis of the second A plate or the second B plate in the area for the left eye being parallel to the slow axis of the first A plate or the first B plate in the area for the left eye and a slow axis of the second A plate or the second B plate in the area for the right eye being parallel to the slow axis of the first A plate or the first B plate in the area for the right eye; or the second A plate or the second B plate in the area for the left eye and the second A plate or the second B plate in the area for the right eye having slow axes formed in a direction perpendicular to the light absorbing axis of the polarizer.

5. The polarizing glasses according to claim 3 , wherein the optical anisotropic layer comprises a first +B plate and a second +B plate, which are arranged sequentially from a side into which the image signal enters, a bisector of an angle formed by slow axes of the first +B plates in the area for the left eye and in the area for the right eye being perpendicular or parallel to the light absorbing axis of the polarizer, and slow axes of the second +B plates in the area for the left eye and in the area for the right eye being perpendicular to the light absorbing axis of the polarizer.

6. The polarizing glasses according to claim 3 , wherein the optical anisotropic layer comprises a −B plate and a +C plate, which are arranged sequentially from a side into which the image signal enters, and a bisector of an angle formed by an optical axes of the −B plates in the area for the left eye and in the area for the right eye being perpendicular or parallel to the light absorbing axis of the polarizer.

7. The polarizing glasses according to claim 3 , wherein the optical anisotropic layer comprises a −C plate and a +B plate, which are arranged sequentially from a side into which the image signal enters, and a bisector of an angle formed by an optical axes of the +B plates in the area for the left eye and in the area for the right eye being perpendicular or parallel to the light absorbing axis of the polarizer.

8. The polarizing glasses according to claim 3 , wherein the optical anisotropic layer comprises a +A plate and a +B plate, which are arranged sequentially from a side into which the image signal enters, a bisector of angle formed by an optical axes of the +B plates in the area for the left eye and in the area for the right eye being perpendicular or parallel to the light absorbing axis of the polarizer, and the +A plate in the area for the left eye having an optical axis in a direction parallel to the optical axis of the +B plate in the area for the left eye, and the +A plate in the area for the right eye having an optical axis in a direction parallel to the optical axis of the +B plate in the area for the right eye.

9. The polarizing glasses according to claim 3 , wherein the optical anisotropic layer comprises a +B plate and a +A plate, which are arranged sequentially from a side into which the image signal enters, a bisector of an angle formed by an optical axes of the +B plates in the area for the left eye and in the area for the right eye being perpendicular or parallel to the light absorbing axis of the polarizer, and the +A plates in the area for the left eye and in the area for the right eye having optical axes in a direction perpendicular to the light absorbing axis of the polarizer.

10. The polarizing glasses according to claim 3 , wherein the optical anisotropic layer comprises a −C plate, a +B plate and a +A plate, which are arranged sequentially from a side into with the image signal enters, a bisector of an angle formed by an optical axes of the +B plates in the area for the left eye and in the area for the right eye being perpendicular or parallel to the light absorbing axis of the polarizer, and optical axes of the +A plates in the area for the left eye and in the area for the right eye being formed in a direction perpendicular to the light absorbing axis of the polarizer.

11. The polarizing glasses according to claim 3 , wherein the optical anisotropic layer comprises a first +A plate, a +B plate, and a second +A plate, which are arranged sequentially from a side into which the image signal enters, a bisector of an angle formed by an optical axes of the +B plates in the area for the left eye and in the area for the right eye being perpendicular or parallel to the light absorbing axis of the polarizer, the first +A plate in the area for the left eye having an optical axis in the same direction as the +B plate in the area for the left eye, the first +A plate in the area for the right eye having an optical axis in the same direction as the +B plate in the area for the right eye, and the second +A plates in the area for the left eye and in the area for the right eye having optical axes formed in a direction perpendicular to the light absorbing axis of the polarizer.

12. The polarizing glasses according to claim 3 , wherein the optical anisotropic layer comprises a +B plate, a +C plate and a +A plate, which are arranged sequentially from a side into which the image signal enters, a bisector of angle formed by optical axes of the +B plates in the area for the left eye and in the area for the right eye being perpendicular or parallel to the light absorbing axis of the polarizer, and the +A plates in the area for the left eye and the area for the right eye having optical axes formed in a direction perpendicular to the light absorbing axis of the polarizer.

13. The polarizing glasses according to claim 3 , wherein the optical anisotropic layer comprises a first +A plate,

Assignees

• Jeon Byoung Kun
• Belyaev Sergey
• Park Moon Soo
• Kim Sin Young
• Lg Chemical Ltd

Inventors

• Jeon Byoung Kun
• Belyaev Sergey
• Park Moon Soo
• Kim Sin Young

Classifications

• H04N2213/008

  Aspects relating to glasses for viewing stereoscopic images · CPC title

• G02C7/12 Primary

  Polarisers · CPC title

• G02B30/25

  using polarisation techniques · CPC title

• G02B27/26

  Physics · mapped topic

• G02C1/06

  Bridge or browbar secured to or integral with closed rigid rims for the lenses · CPC title