Display device and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-9423543-B2
Application number	US-201314086184-A
Country	US
Kind code	B2
Filing date	Nov 21, 2013
Priority date	Dec 21, 2012
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

Abstract

A display device includes a display panel, a first pressure sensitive adhesive positioned on the display panel, a quarter wavelength (λ/4) wave plate positioned on the pressure sensitive adhesive, a linear polarizer positioned on the λ/4 wave plate, and a first base layer positioned on the linear polarizer.

First claim

What is claimed is:

1. A display device comprising:
a display panel that displays images;
a first pressure sensitive adhesive positioned on the display panel;
a quarter wavelength (λ/4) wave plate positioned on the first pressure sensitive adhesive;
a linear polarizer positioned on the λ/4 wave plate; and
a first base layer positioned on the linear polarizer, the first base layer supporting at least the linear polarizer positioned below the first base layer.

2. The display device of claim 1 , further comprising:
a patterned retarder layer positioned between the linear polarizer and the first base layer.

3. The display device of claim 1 , further comprising:
a second pressure sensitive adhesive positioned on the first base film;
a patterned retarder layer positioned on the second pressure sensitive adhesive; and
and second base layer positioned on the patterned retarder layer.

4. The display device of claim 3 , wherein at least one of the first and second base layers is formed of hydrophobic acryl.

5. The display device of claim 1 , wherein at least one of the λ/4 wave plate and the linear polarizer is formed of a thin film having a thickness of 5 μm or less.

6. The display device of claim 1 , wherein at least one of the λ/4 wave plate and the linear polarizer includes a photoalignment layer and a liquid crystal layer aligned on the photoalignment layer.

7. The display device of claim 1 , wherein the first pressure sensitive adhesive is positioned directly on the display panel, and wherein the λ/4 wave plate is positioned directly on the first pressure sensitive adhesive, and wherein the linear polarizer is positioned directly on the λ/4 wave plate, and wherein the first base layer is positioned directly on the linear polarizer.

Assignees

• Lg Display Co Ltd

Inventors

• Cho Wonjong

Classifications

• G02F1/13363 Primary

  Birefringent elements, e.g. for optical compensation · CPC title

• G02F1/133528 Primary

  Polarisers · CPC title

• G02F2202/28

  Adhesive materials or arrangements · CPC title

• G02B5/3083 Primary

  Birefringent or phase retarding elements (G02B5/3008, G02B5/3016 take precedence; systems for polarisation control G02B27/286; manufacturing phase modulating patterns by lithographic processes G03F7/001) · CPC title

• H10K59/8793

  Arrangements for polarized light emission (H10K59/8791 takes precedence) · CPC title