Display device

Patent metadata

Field	Value
Publication number	US-12058887-B2
Application number	US-202318354261-A
Country	US
Kind code	B2
Filing date	Jul 18, 2023
Priority date	Dec 30, 2020
Publication date	Aug 6, 2024
Grant date	Aug 6, 2024

Abstract

A display device includes a display panel including a first area including a peripheral region and an emission region of a pixel of a first group; and a second area including a peripheral region and an emission region of a pixel of a second group; at least one insulating layer disposed on the display panel and overlapping the second area; an organic layer disposed on the at least one insulating layer and overlapping the second area; and a light blocking pattern disposed on the organic layer and overlapping the second area. A first opening corresponding to the emission region of the pixel of the second group is formed in the organic layer, and a first light blocking opening corresponding to the first opening is formed in the light blocking pattern.

First claim

What is claimed is:

1. A display device comprising:
a display panel including:
a base layer including a peripheral region and an emission region;
an organic light emitting element disposed on the base layer, and including:
a first electrode;
a light emitting pattern disposed on the first electrode; and
a second electrode disposed on the light emitting pattern; and

a thin encapsulation layer overlapping the organic light emitting element;

an input sensor to detect an external input;
a first organic layer disposed on the thin encapsulation layer, and defining a first opening corresponding to the emission region; and
a second organic layer filling the first opening, wherein
the input sensor includes a conductive mesh line overlapping the peripheral region and defining a sensor opening corresponding to the emission region, and
the conductive mesh line is disposed on the thin encapsulation layer and is covered by the first organic layer,
a refractive index of the first organic layer is different from a refractive index of the second organic layer.

2. The display device of claim 1 , further comprising:
at least one insulating layer disposed between the display panel and the first organic layer, wherein
the display panel includes:
a first area including a first peripheral region and a first emission region of a pixel of a first group; and
a second area including a second peripheral region and a second emission region of a pixel of a second group, and

a first stacked structure is disposed on the display panel and overlaps the first area,
a second stacked structure is disposed on the display panel and overlaps the second area,
a cross section of the first stacked structure and a cross section of the second stacked structure are different from each other, and
the first opening corresponds to the second emission region of the pixel of the second group.

3. The display device of claim 2 , further comprising:
an organic pattern disposed on the display panel, overlapping the first area, and not overlapping the second area.

4. The display device of claim 3 , wherein the thin encapsulation layer includes:
a first encapsulation inorganic layer;
an organic layer disposed on the first encapsulation inorganic layer; and
a second encapsulation inorganic layer disposed on the organic layer.

5. The display device of claim 4 , further comprising:
at least one inorganic layer disposed between the second encapsulation inorganic layer and the organic pattern.

6. The display device of claim 3 , wherein a thickness of the organic pattern is about 30,000 Å or less.

7. The display device of claim 3 , wherein
the at least one insulating layer includes:
a first inorganic layer;
a second inorganic layer disposed on the first inorganic layer; and
an organic layer disposed on the second inorganic layer, and

the organic pattern is disposed between the first inorganic layer and the second inorganic layer.

8. The display device of claim 2 , wherein
the display panel deactivates the pixel of the first group and activates the pixel of the second group in a first operation mode, and
the display panel activates the pixel of the first group and the pixel of the second group in a second operation mode.

9. The display device of claim 2 , wherein
the pixel of the first group includes a first color pixel, a second color pixel, and a third color pixel that generate different lights from one another, and
the pixel of the second group includes a first color pixel, a second color pixel, and a third color pixel that generate different lights from one another.

10. The display device of claim 9 , wherein
each of the first area and the second area includes a plurality of unit regions,
the first color pixel, the second color pixel, and the third color pixel in the first group and the first color pixel, the second color pixel, and the third color pixel in the second group are disposed in corresponding ones of the plurality of unit regions, and
the first color pixel, the second color pixel, and the third color pixel in the first group and the first color pixel, the second color pixel, and the third color pixel in the second group have a same arrangement.

11. The display device of claim 1 , further comprising:
a light blocking pattern disposed on the first organic layer, wherein
a first light blocking opening corresponding to the first opening is disposed in the light blocking pattern.

12. The display device of claim 11 , wherein a refractive index of the second organic layer is greater than a refractive index of the first organic layer.

13. The display device of claim 12 , wherein the second organic layer overlaps the light blocking pattern.

14. The display device of claim 2 , wherein
the first organic layer includes an inclined surface defining the first opening, and
the inclined surface and an upper surface of the at least one insulating layer exposed to the first opening meet at an obtuse angle.

15. The display device of claim 2 , wherein
the input sensor includes a conductive mesh line overlapping the peripheral region and defining a sensor opening corresponding to the emission region, and
the conductive mesh line is disposed on the at least one insulating layer and overlaps the first organic layer.

16. The display device of claim 15 , wherein
the at least one insulating layer includes a first inorganic layer and a second inorganic layer disposed on the first inorganic layer,
the conductive mesh line includes a first sensing electrode and sensing patterns insulated from the first sensing electrode,
the input sensor includes a bridge pattern which electrically connects the sensing patterns and overlaps the first sensing electrode, and
the bridge pattern is disposed between the first inorganic layer and the second inorganic layer.

17. The display device of claim 1 , wherein the first organic layer spaced apart from the thin encapsulation layer by at least one insulating layer that is disposed between the first organic layer and the thin encapsulation layer.

18. The display device of claim 1 , wherein
the first organic layer includes an organic material, and
the first opening does not include the organic material.

19. The display device of claim 2 , wherein the pixel of the first group and the pixel of the second group have a same pixel arrangement.

20. A display device comprising:
a display panel including:
a base layer including a peripheral region and emission regions;
an organic light emitting element disposed on the base layer, and including:
a first electrode;
a light emitting pattern disposed on the first electrode; and
a second electrode disposed on the light emitting pattern; and

a thin encapsulation layer overlapping the organic light emitting element;

an input sensor disposed on the display panel; and
an optical control layer disposed on the input sensor, wherein
the input sensor includes:
an organic pattern disposed on the display panel;
a conductive mesh line disposed on the display panel and the organic pattern, the conductive mesh line defining a plurality of sensor openings corresponding to the emission regions; and
a first organic layer overlapping the conductive mesh line, and

the optical control layer includes a second organic layer overlapping the first organic layer, and having a higher refractive index than a refractive index of the first organic layer.

21. The display device of claim 20 , further comprising:
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Assignees

• Samsung Display Co Ltd

Inventors

• Kim Woongsik
• Byun Jin-Su
• Bae Donghwan
• Lee Sanghyun

Classifications

• H10K59/352

  the areas of the RGB subpixels being different · CPC title

• H10K59/38

  comprising colour filters or colour changing media [CCM] · CPC title

• H10K2102/351

  Thickness · CPC title

• H10K59/8791

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• H10K50/844

  Encapsulations · CPC title