Display device including a circular polarizer and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-2024077763-A1
Application number	US-202318505033-A
Country	US
Kind code	A1
Filing date	Nov 8, 2023
Priority date	Dec 20, 2016
Publication date	Mar 7, 2024
Grant date	—

Abstract

A display device including: a first substrate; a transflective layer disposed on a surface of the first substrate; a wavelength conversion layer disposed on the transflective layer; a capping layer disposed on the wavelength conversion layer, a first polarizing layer disposed on the capping layer; and a second polarizing layer disposed on the other surface of the first substrate. The first polarizing layer and the second polarizing layer have different polarization directions.

First claim

What is claimed is:

1 . A display device comprising:
a first substrate; a light blocking filter on the first substrate; and a transflective layer disposed on the light blocking filter, wherein the light blocking filter is disposed between the first substrate and the transflective layer.

2 . The display device of claim 1 , further comprising a wavelength conversion layer on the transflective layer.

3 . The display device of claim 2 , further comprising a capping layer on the wavelength conversion layer.

4 . The display device of claim 3 , further comprising a planarization layer on the capping layer.

5 . The display device of claim 2 , wherein the wavelength conversion layer comprises a first wavelength conversion layer configured to emit a first light and a second wavelength conversion layer configured to emit a second light which has a wavelength different from the first light.

6 . The display device of claim 5 , further comprising a light transmitting layer disposed adjacent to the wavelength conversion layer.

7 . The display device of claim 6 , wherein the light blocking filter overlaps the wavelength conversion layer and does not overlap the light transmitting layer.

8 . The display device of claim 6 , wherein the transflective layer is in direct contact with the first substrate in an area overlapping the light transmitting layer.

9 . The display device of claim 6 , wherein a maximum height of the wavelength conversion layer with respect to the first substrate is greater than a maximum height of the transmitting layer.

10 . The display device of claim 5 , further comprising a black matrix disposed between the first wavelength conversion layer and the second wavelength conversion layer in a plan view.

11 . The display device of claim 10 , wherein the transflective layer is in direct contact with at least a portion of the black matrix.

12 . The display device of claim 1 , wherein the transflective layer comprises a first protective layer, an intermediate layer, and a second protective layer.

13 . The display device of claim 1 , wherein the intermediate layer has a thickness of 100 to 200 Å.

14 . The display device of claim 1 , wherein the transflective layer has a reflectance of 20 to 70%.

15 . The display device of claim 1 , wherein the light blocking layer is configured to block a blue light.

Assignees

• Samsung Display Co Ltd

Inventors

• Yoon Seon Tae
• Kwon Jung Hyun
• Park Ki Soo
• Park Hae Ii
• Baek Moon Jung

Classifications

• G02F1/133555 Primary

  Transflectors · CPC title

• G02F1/133512

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• G02F1/133528 Primary

  Polarisers · CPC title

• G02F1/133617

  Illumination with ultraviolet light; Luminescent elements or materials associated to the cell · CPC title

• G02F1/133531

  characterised by the arrangement of polariser or analyser axes · CPC title