Polarizer and display device comprising the same

Patent metadata

Field	Value
Publication number	US-2016259104-A1
Application number	US-201615056985-A
Country	US
Kind code	A1
Filing date	Feb 29, 2016
Priority date	Mar 2, 2015
Publication date	Sep 8, 2016
Grant date	—

Abstract

A polarizer includes: an adhesive layer including a binder resin and a light absorbing component dispersed in the binder resin, the light absorbing component including: a first light absorbing component to absorb a first light having a peak wavelength of about 430 nm or less; and a second light absorbing component to absorb a second light having a peak wavelength ranging from about 640 nm to about 720 nm; a phase retardation layer on the adhesive layer; and a linear polarizer on the phase retardation layer.

First claim

What is claimed is:

1 . A polarizer comprising:
an adhesive layer comprising a binder resin and a light absorbing component dispersed in the binder resin, the light absorbing component comprising:
a first light absorbing component configured to absorb a first light having a peak wavelength of about 430 nm or less; and
a second light absorbing component configured to absorb a second light having a peak wavelength ranging from about 640 nm to about 720 nm;
a phase retardation layer on the adhesive layer; and a linear polarizer on the phase retardation layer.

2 . The polarizer of claim 1 , wherein the adhesive layer has a light transmittance between about 50% to about 95%.

3 . The polarizer of claim 1 , wherein the phase retardation layer comprises a quarter wave plate.

4 . The polarizer of claim 1 , wherein the phase retardation layer has a phase retardation value between about 130 nm to about 150 nm.

5 . The polarizer of claim 1 , wherein the phase retardation layer comprises a cyclic olefin polymer (COP).

6 . The polarizer of claim 1 , further comprising a support layer between the phase retardation layer and the linear polarizer.

7 . The polarizer of claim 6 , wherein the support layer comprises a tri-acetyl cellulose (TAC) film.

8 . The polarizer of claim 1 , wherein the linear polarizer comprises polyvinyl alcohol (PVA).

9 . A display device comprising:
a display panel having a display surface; and a polarizer on the display surface of the display panel, the polarizer comprising:
an adhesive layer on the display panel, and comprising a binder resin and a light absorbing component dispersed in the binder resin, the light absorbing component comprising:
a first light absorbing component configured to absorb a first light having a peak wavelength of about 430 nm or less; and
a second light absorbing component configured to absorb a second light having a peak wavelength ranging from about 640 nm to about 720 nm;

a phase retardation layer on the adhesive layer; and
a linear polarizer on the phase retardation layer.

10 . The display device of claim 9 , wherein the adhesive layer has a light transmittance between about 50% to about 95%.

11 . The display device of claim 9 , wherein the phase retardation layer comprises a quarter wave plate.

12 . The display device of claim 9 , wherein the phase retardation layer has a phase retardation value between about 130 nm to about 150 nm.

13 . The display device of claim 9 , wherein the phase retardation layer comprises a COP.

14 . The display device of claim 9 , further comprising a support layer between the phase retardation layer and the linear polarizer.

15 . The display device of claim 14 , wherein the support layer comprises a tri-acetyl cellulose (TAC) film.

16 . The display device of claim 9 , wherein the linear polarizer comprises polyvinyl alcohol (PVA).

17 . The display device of claim 9 , wherein the display panel comprises:
a first substrate; a first electrode on the first substrate; an organic light emitting layer on the first electrode; and a second electrode on the organic light emitting layer.

18 . The display device of claim 17 , further comprising a thin film encapsulation layer on the second electrode, and comprising one or more organic layers and one or more inorganic layers that are alternately stacked.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Dukjin
• Son Junghee
• Jung Woosuk

Classifications

• H10K59/87

  Passivation; Containers; Encapsulations · CPC title

• H10K50/84

  Passivation; Containers; Encapsulations · 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

• H01L51/5237

  Electricity · mapped topic

• H01L51/5293

  Electricity · mapped topic