IP Library › Granted Patent US 10,930,895
Granted Patent B2
US 10,930,895 · App. 15/967,750 · Granted Feb 23, 2021

Display device and method for manufacturing the same

Inventors: Hee Kyun Shin (Yongin-si, KR); Seung Jun Moon (Yongin-si, KR); Byung Hoon Kang (Yongin-si, KR); Min Woo Lee (Yongin-si, KR); Woo Jin Cho (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H01L51/56B32B5/16B32B7/12H01L51/003H01L51/0097B32B2264/102B32B2457/206H01L27/3244H01L51/5256H01L2227/323H01L2227/326H01L2251/5338
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,930,895
App. No.
15/967,750
Granted
Feb 23, 2021
Kind
B2
Abstract

A display device includes a base, a light emitting device on a first surface of the base, and a plate-like inorganic layer on a second surface of the base, the plate-like inorganic layer including a first plate-like inorganic particle with a first size and a second plate-like inorganic particle with a second size different from the first size.

Claims (41)

1. A display device, comprising:

a base;

a light emitting device on a first surface of the base; and

a plate-like inorganic layer on a second surface of the base, the plate-like inorganic layer including a first plate-like inorganic particle with a first size and a second plate-like inorganic particle with a second size different from the first size, wherein

the plate-like inorganic layer includes a first plate-like inorganic layer directly on the second surface of the base and including the first plate-like inorganic particle, and a second plate-like inorganic layer directly on the first plate-like inorganic layer and including the second plate-like inorganic particle, and

the first plate-like inorganic layer and the second plate-like inorganic layer each comprise a different graphene oxide particle from one another.

2. The display device as claimed in claim 1 , wherein the first plate-like inorganic particle and the second plate-like inorganic particle are positioned in a same layer, the second size being greater than or equal to six times the first size.

3. The display device as claimed in claim 2 , wherein the first size is less than or equal to 8.0 μm, and the second size ranges from 20.0 μm to 50.0 μm.

4. The display device as claimed in claim 1 , wherein:

the first plate-like inorganic particle is a first graphene oxide particle covalently-bonded to carbon atoms, hydrogen atoms, and oxygen atoms covalently-bonded to nitrogen atoms, and

the second plate-like inorganic particle is a second graphene oxide particle covalently-bonded to carbon atoms, hydrogen atoms, and nitrogen atoms.

5. The display device as claimed in claim 4 , wherein:

the carbon atoms, hydrogen atoms, and oxygen atoms of the first plate-like inorganic particle form one or more of a hydroxyl group, a carboxyl group, and an epoxy group, and

the carbon atoms, hydrogen atoms, and nitrogen atoms of the second plate-like inorganic particle form an amine group.

6. The display device as claimed in claim 4 , wherein the first plate-like inorganic layer further includes carbon atoms, hydrogen atoms, and oxygen atoms covalently-bonded to a third graphene oxide particle, does not include nitrogen atoms covalently-bonded to the third graphene oxide particle, and has a third size different from the first size.

7. The display device as claimed in claim 6 , wherein the second plate-like inorganic layer further includes carbon atoms, hydrogen atoms, and nitrogen atoms covalently-bonded to a fourth grapheme oxide particle, and has a fourth size different from the second size.

8. The display device as claimed in claim 7 , wherein the third size is greater than or equal to six times the first size, and the second size is greater than or equal to six times the fourth size.

9. The display device as claimed in claim 1 , wherein the plate-like inorganic layer further includes:

a third plate-like inorganic layer directly on the second plate-like inorganic layer and including a third plate-like inorganic particle, the third plate-like inorganic particle being a same type as that of the first plate-like inorganic particle; and

a fourth plate-like inorganic layer directly on the third plate-like inorganic layer and including a fourth plate-like inorganic particle, the fourth plate-like inorganic particle being a same type as that of the second plate-like inorganic particle.

10. The display device as claimed in claim 1 , further comprising an adhesive layer directly on the plate-like inorganic layer,

wherein the plate-like inorganic layer is only partially on the second surface of the base to partially expose the second surface of the base, and

wherein the adhesive layer is in contact with the second surface of the base.

11. The display device as claimed in claim 10 , further comprising:

an encapsulation layer on the light emitting device and including one or more inorganic layers and one or more organic layers that are alternately stacked; and

a functional sheet on the adhesive layer, the functional sheet including one or more of a shading sheet, a cushion sheet, and a metal sheet.

12. The display device as claimed in claim 11 , wherein:

a display region, where an image is displayed, and a non-display region, where an image is not displayed and that surrounds the display region, are defined in the display device, and

the plate-like inorganic layer is positioned in the display region and the non-display region.

13. A display device, comprising:

a base;

a light emitting device on a first surface of the base; and

a plate-like inorganic layer on a second surface of the base, the plate-like inorganic layer including a first plate-like inorganic layer and a second plate-like inorganic layer on the first plate-like inorganic layer, wherein

the first plate-like inorganic layer includes a first graphene oxide particle covalently-bonded to carbon atoms, hydrogen atoms, and nitrogen atoms, and

the second plate-like inorganic layer includes inorganic particles different than the first plate-like inorganic layer.

14. The display device as claimed in claim 13 , wherein

the second plate-like inorganic layer includes a second graphene oxide particle covalently bonded to carbon atoms, hydrogen atoms, and oxygen atoms and not covalently-bonded to nitrogen atoms.

15. The display device as claimed in claim 14 , wherein the first graphene oxide particle and the second graphene oxide particle have a substantially same size.

16. The display device as claimed in claim 13 , wherein

the carbon atoms, hydrogen atoms, and nitrogen atoms are covalently-bonded to the first graphene oxide particle, and

the second plate-like inorganic layer includes a plate-like silicate particle.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 1, 2018
From: SHIN, HEE KYUN; MOON, SEUNG JUN; KANG, BYUNG HOON; LEE, MIN WOO; CHO, WOO JIN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 046042/0605 →
Priority Claims (1)
KR 10-2017-0148541 · Nov 9, 2017 · national
Continuity (1)
Related Publication 20190140216A1 · May 9, 2019