Display device

Patent metadata

Field	Value
Publication number	US-2022011489-A1
Application number	US-202117188730-A
Country	US
Kind code	A1
Filing date	Mar 1, 2021
Priority date	Jul 8, 2020
Publication date	Jan 13, 2022
Grant date	—

Abstract

A display device includes an electronic part, a support part including a through hole overlapping the electronic part, a display part disposed above the support part and including a first area overlapping the through hole, and a second area non-overlapping the through hole, the second area being adjacent to the first area, a polarizing plate disposed above the display part and having a transmission axis parallel to a direction, and a pattern optical layer disposed on the polarizing plate and including first phase retardation parts having a first optical axis, and second phase retardation parts having a second optical axis orthogonal to the first optical axis.

First claim

What is claimed is:

1 . A display device comprising:
an electronic part; a support part including a through hole overlapping the electronic part; a display part disposed above the support part and including:
a first area overlapping the through hole; and
a second area non-overlapping the through hole, the second area being adjacent to the first area;
a polarizing plate disposed above the display part and having a transmission axis parallel to a direction; and a pattern optical layer disposed on the polarizing plate and including:
first phase retardation parts having a first optical axis; and
second phase retardation parts having a second optical axis orthogonal to the first optical axis.

2 . The display device of claim 1 , wherein
the first optical axis has an intervening angle of about 45±5° in a positive direction with respect to the transmission axis, and the second optical axis has an intervening angle of about 45±5° in a negative direction with respect to the transmission axis.

3 . The display device of claim 1 , wherein the pattern optical layer is a λ/4 phase retarder.

4 . The display device of claim 1 , wherein the pattern optical layer overlaps the first area and non-overlaps the second area.

5 . The display device of claim 1 , wherein the pattern optical layer overlaps an entire area of the first area and the second area.

6 . The display device of claim 1 , wherein the first phase retardation parts and the second phase retardation parts are alternately arranged.

7 . The display device of claim 6 , wherein a total area of the first phase retardation parts and a total area of the second phase retardation parts are the same.

8 . The display device of claim 6 , wherein each of the first phase retardation parts and the second phase retardation parts is arranged in a stripe shape.

9 . The display device of claim 8 , wherein each of the first phase retardation parts and the second phase retardation parts is arranged to be parallel to or orthogonal to the direction.

10 . The display device of claim 6 , wherein
each of the first phase retardation parts and the second phase retardation parts has a square shape in a plan view, and the first phase retardation parts and the second phase retardation parts are arranged in a mosaic shape.

11 . The display device of claim 1 , wherein
the polarizing plate comprises:
a linear polarizing layer;
a first phase retardation layer disposed under the linear polarizing layer; and
a second phase retardation layer disposed between the first phase retardation layer and the linear polarizing layer, and
the first phase retardation layer is a λ/4 phase retarder, and the second phase retardation layer is a λ/2 phase retarder.

12 . The display device of claim 1 , further comprising a window including:
a cover layer; and a protective layer disposed on the cover layer and having a phase retardation of about 5000 nm or more.

13 . The display device of claim 1 , further comprising a shock absorbing layer disposed on an upper side of the pattern optical layer and having a phase retardation of about 5000 nm or more.

14 . The display device of claim 1 , wherein the polarizing plate is directly disposed on the display part.

15 . The display device of claim 1 , wherein the pattern optical layer is directly disposed on the polarizing plate.

16 . A display device comprising:
a display part; a camera disposed below the display part and capturing an image in a front direction of the display part; a polarizing plate disposed above the display part and including a linear polarizing layer having a transmission axis in a direction; and a pattern optical layer overlapping the camera and disposed above the polarizing plate, the pattern optical layer including:
first phase retardation parts having a first optical axis; and
second phase retardation parts having a second optical axis orthogonal to the first optical axis.

17 . The display device of claim 16 , wherein
the first optical axis has an intervening angle of about 45±5 degrees in a positive direction with respect to the transmission axis, and the second optical axis has an intervening angle of about 45±5 degrees in a negative direction with respect to the transmission axis.

18 . The display device of claim 16 , wherein the pattern optical layer is a λ/4 phase retarder.

19 . The display device of claim 16 , wherein the first phase retardation parts and the second phase retardation parts are alternately arranged.

20 . The display device of claim 16 , wherein a total area of the first phase retardation parts and a total area of the second phase retardation parts are the same.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Sanghyeok
• Lee Jung-Hun
• Park Sungun
• Lee Jihwa
• Choi Giljae
• Han Jiwon

Classifications

• G09F9/33

  being semiconductor devices, e.g. diodes · CPC title

• G06F1/1686

  the I/O peripheral being an integrated camera · CPC title

• G06F1/1637

  Details related to the display arrangement, including those related to the mounting of the display in the housing · CPC title

• G06F1/1626

  with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs] · CPC title

• G02B5/3016

  involving passive liquid crystal elements (optical properties of liquid crystals G02F1/0063; polarising elements associated with active liquid crystal devices G02F1/133528) · CPC title