Display device

Patent metadata

Field	Value
Publication number	US-11308730-B2
Application number	US-202017136497-A
Country	US
Kind code	B2
Filing date	Dec 29, 2020
Priority date	Mar 20, 2020
Publication date	Apr 19, 2022
Grant date	Apr 19, 2022

Abstract

Provided is a display device including a display panel defining a folding area and a non-folding area and including a base layer, a circuit layer on the base layer, and a display element layer on the circuit layer, an input sensor below the display panel and defining a sensing area overlapping the non-folding area, and a light shielding layer between the display element layer and the input sensor, where the light shielding layer defines a plurality of holes in a first portion of the light shielding layer at the non-folding area, and a cut portion in a second portion of the light shielding layer at the folding area.

First claim

What is claimed is:

1. A display device comprising:
a display panel defining a folding area and a non-folding area and comprising a base layer, a circuit layer on the base layer, and a display element layer on the circuit layer;
an input sensor below the display panel and defining a sensing area overlapping the non-folding area in a plan view; and
a light shielding layer between the display element layer and the input sensor in a view perpendicular to the plan view,
wherein the light shielding layer defines a plurality of holes in a first portion of the light shielding layer at the non-folding area, and a cut portion extending in a direction in a second portion of the light shielding layer at the folding area.

2. The display device of claim 1 , wherein the circuit layer comprises a semiconductor pattern on the base layer, an insulation layer covering the semiconductor pattern, and a conductive layer on the insulation layer, and wherein the cut portion does not overlap the semiconductor pattern in the plan view.

3. The display device of claim 2 , wherein the cut portion overlaps the conductive layer in the plan view.

4. The display device of claim 1 , wherein the light shielding layer is configured to receive a voltage.

5. The display device of claim 1 , wherein the light shielding layer is electrically connected to the circuit layer.

6. The display device of claim 1 , wherein the folding area and the non-folding area are adjacent to each other in a first direction, and the cut portion extends in a second direction crossing the first direction.

7. The display device of claim 6 , wherein the cut portion defines a plurality of primary slits, and the plurality of primary slits are spaced apart from each other in the first direction.

8. The display device of claim 7 , wherein the light shielding layer has a width in the second direction, and wherein the width of the light shielding layer is greater than a length of each of the plurality of primary slits in the second direction.

9. The display device of claim 7 , wherein the cut portion further comprises a secondary slit configured to connect at least two of the plurality of primary slits with each other.

10. The display device of claim 9 , wherein the display panel defines a display area configured to display an image and a non-display area adjacent to the display area, and the secondary slit is in the non-display area.

11. The display device of claim 1 , wherein the input sensor overlaps the folding area and the non-folding area in the plan view, and the input sensor defines a non-sensing area, and the non-sensing area overlaps the folding area in the plan view.

12. The display device of claim 1 , wherein the input sensor does not overlap the folding area of the display panel in the plan view.

13. The display device of claim 1 , wherein the input sensor comprises a plurality of sensing elements in the sensing area, and the plurality of sensing elements are configured to sense light passing through the plurality of holes.

14. The display device of claim 1 , wherein the cut portion has a depth equal to a thickness of the light shielding layer.

15. The display device of claim 1 , wherein the cut portion has a depth less than a thickness of the light shielding layer.

16. The display device of claim 1 , wherein each of the plurality of holes has an area different from that of the cut portion in the plan view.

17. The display device of claim 1 , wherein the light shielding layer is between the base layer and the circuit layer, and the light shielding layer is contained in the display panel.

18. A display device comprising:
an input sensor;
a base layer on the input sensor;
a circuit layer on the base layer and comprising a semiconductor pattern;
a display element layer on the circuit layer; and
a light shielding layer between the input sensor and the display element layer in a view perpendicular to a plan view; and
wherein the light shielding layer defines a plurality of holes and a cut portion spaced apart from the semiconductor pattern in the plan view.

19. The display device of claim 18 , wherein the circuit layer further comprises a conductive layer on the semiconductor pattern, and the cut portion and the conductive layer overlap each other in the plan view.

20. The display device of claim 18 , wherein the light shielding layer is between the base layer and the circuit layer.

21. A display device comprising:
a base layer in which a first non-folding area, a folding area, and a second non-folding area are sequentially defined in a first direction;
a circuit layer on the base layer and comprising a semiconductor pattern, an insulation layer, and a conductive layer;
a display element layer on the circuit layer; and
a light shielding layer defining a cut portion extending in a second direction crossing the first direction in an area overlapping the folding area in a plan view, and defining a plurality of holes in an area overlapping the first non-folding area and the second non-folding area in the plan view; and
an input sensor below the base layer,
wherein the input sensor is in an area overlapping at least one of the first non-folding area or the second non-folding area in the plan view.

22. The display device of claim 21 , wherein the cut portion does not overlap the semiconductor pattern in the plan view, and the cut portion overlaps the conductive layer in the plan view.

23. The display device of claim 21 , wherein the light shielding layer is between the base layer and the circuit layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Ryu Ji-Hun
• Kim Ilnam
• Kim Jae-Kyoung
• Baek Jongin
• Sung Eunjin
• Lee Seongryong
• Lee Jonghyun

Classifications

• G06V40/1324

  by using geometrical optics, e.g. using prisms (G06V40/1312 takes precedence) · CPC title

• G06V10/17

  using hand-held instruments · CPC title

• H04M1/0268

  including a flexible display panel · CPC title

• G06V40/1318 Primary

  using electro-optical elements or layers, e.g. electroluminescent sensing · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title