Polarization glasses type stereoscopic image display

Patent metadata

Field	Value
Publication number	US-9684177-B2
Application number	US-201213658988-A
Country	US
Kind code	B2
Filing date	Oct 24, 2012
Priority date	Dec 15, 2011
Publication date	Jun 20, 2017
Grant date	Jun 20, 2017

Abstract

A polarization glasses type stereoscopic image display includes: a thin film transistor array substrate; a color filter array substrate having a plurality of black matrix patterns formed on a first plane facing the thin film transistor array substrate; a plurality of black stripe patterns that are aligned in a first direction correspondingly to the black matrix patterns on a second plane of the color filter array substrate opposite to the first plane; and a patterned retarder disposed over the second plane of the color filter array substrate. The width of the black stripe pattern is different depending on a display position with respect to the first direction. The first direction is directed from an upper side of the display to a lower side of the display.

First claim

The invention claimed is:

1. A polarization glasses type stereoscopic image display comprising:
a thin film transistor array substrate;
a color filter array substrate having a plurality of black matrix patterns formed on a first plane facing the thin film transistor array substrate;
a plurality of black stripe patterns that are aligned in a first direction corresponding to, and having an equal number as, the plurality of black matrix patterns on a second plane of the color filter array substrate opposite to the first plane, wherein the first direction is directed from an upper side of the display to a lower side of the display; and
a patterned retarder disposed over the second plane of the color filter array substrate,
wherein when the display is divided into an upper portion, a center portion, and a lower portion along the first direction, with widths of the plurality of black stripe patterns gradually vary at both the upper and lower portions of the display,
wherein the center portion of the black matrix patterns on the first plane align correspondingly and directly over the center portion of the black stripe patterns on the second plane, and the upper and the lower portions of the black matrix patterns on the first plane are each correspondingly and symmetrically offset away from black stripe patterns on the second plane.

2. The polarization glasses type stereoscopic image display of claim 1 , wherein the widths of the black stripe patterns gradually decrease at the upper and lower portions of the display.

3. The polarization glasses type stereoscopic image display of claim 1 ,
wherein the display is divided into a plurality of blocks along the first direction; and
wherein the width of the black stripe patterns is varied for every block.

4. The polarization glasses type stereoscopic image display of claim 3 , wherein the width of the black stripe patterns decreases in a stepwise manner from a center block of the plurality of blocks toward the uppermost and lowermost blocks.

5. The polarization glasses type stereoscopic image display of claim 4 , wherein each of the blocks comprises a plurality of black stripe patterns, and the black stripe patterns in the same block have the same width.

6. The polarization glasses type stereoscopic image display of claim 1 , wherein the width of the black stripe patterns gradually increases from the center portion of the display toward the upper and lower portions of the display.

7. The polarization glasses type stereoscopic image display of claim 1 ,
wherein the center portion is selected as a center block having a first area, the upper portion is selected as an upper block disposed over the center block and having a second area, and the lower portion is selected as a lower block disposed under the center block and having a third area along the first direction; and
wherein the widths of the black stripe patterns are uniform at the center block, and gradually narrows towards both the upper and lower blocks.

8. The polarization glasses type stereoscopic image display of claim 7 , wherein, at the upper and lower blocks, the widths of the black stripe patterns gradually decrease toward the outermost black stripe patterns.

9. The polarization glasses type stereoscopic image display of claim 7 , wherein, at the upper and lower blocks, the width of the black stripe patterns gradually increases toward the outermost black stripe patterns.

10. The polarization glasses type stereoscopic image display of claim 7 , wherein the second area and the third area are identical.

11. The polarization glasses type stereoscopic image display of claim 1 , wherein the patterned retarder is attached to a first polarizing plate positioned on the second plane of the color filter array substrate;
wherein a rear metal layer is formed between the second plane of the color filter array substrate and the first polarizing plate such that static electricity is discharged; and
wherein the black stripe patterns are covered with the rear metal layer on the second plane of the color filter array substrate.

12. The polarization glasses type stereoscopic image display of claim 1 , wherein the patterned retarder is attached to a first polarizing plate positioned on the second plane of the color filter array substrate; and
wherein the black stripe patterns are positioned between the second plane of the color filter array substrate and the first polarizing plate and come into contact with the first polarizing plate.

13. The polarization glasses type stereoscopic image display of claim 1 , wherein the patterned retarder is attached to a first polarizing plate positioned on the second plane of the color filter array substrate;
wherein a rear metal layer is formed between the second plane of the color filter array substrate and the first polarizing plate such that static electricity is discharged; and
wherein the black stripe patterns are formed between the rear metal layer and the first polarizing plate.

Assignees

• Lg Display Co Ltd

Inventors

• Kim Jinyeong
• Chae Heeyoung
• Park Juun
• Ryu Sungpil
• Park Meeran

Classifications

• H04N13/337 Primary

  using polarisation multiplexing · CPC title

• H04N13/332 Primary

  Displays for viewing with the aid of special glasses or head-mounted displays [HMD] · CPC title

• H04N2213/001

  Constructional or mechanical details · CPC title

• G02B30/25

  using polarisation techniques · CPC title

• G02B30/27 Primary

  involving lenticular arrays · CPC title