IP Library › Granted Patent US 11,675,109
Granted Patent B2
US 11,675,109 · App. 16/879,943 · Granted Jun 13, 2023

Display device

Inventors: Duk Jin Lee (Suwon-si, KR); Beong-Hun Beon (Hwaseong-si, KR); Je Seon Yeon (Cheonan-si, KR); Min Ha Kim (Asan-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
G02B1/115G06F1/1626
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Quick Facts
Patent No.
US 11,675,109
App. No.
16/879,943
Granted
Jun 13, 2023
Kind
B2
Abstract

A display device includes a substrate, a circuit part disposed on the substrate and an encapsulation layer disposed on the circuit pan. An inorganic layer is disposed on the encapsulation layer and includes a groove. An anti-reflection layer is disposed on the inorganic layer. The anti-reflection layer includes a first region that overlaps the groove and a second region that is outside of the first region. The transmittance of the first region and the transmittance of the second region are different from each other.

Claims (50)

1. A display device comprising:

a substrate;

a circuit part disposed on the substrate;

an encapsulation layer disposed on the circuit part;

an inorganic layer disposed on the encapsulation layer and including a groove; and

an anti-reflection layer disposed on the inorganic layer, the anti-reflection layer including a first region that overlaps the groove and a second region that is outside of the first region,

wherein a transmittance of light in a range of about 500 nm to about 700 nm of the first region and a transmittance of light in a range of about 500 nm to about 700 nm of the second region are different from each other.

2. The display device of claim 1 , wherein an outermost edge of the first region is aligned with an outermost edge of the groove.

3. The display device of claim 1 , wherein the inorganic layer includes a silicon oxynitride (SiON).

4. The display device of claim 1 , wherein the groove has a circular shape in a plan view.

5. The display device of claim 1 , wherein the anti-reflection layer further includes:

a first passivation layer;

a second passivation layer overlapping the first passivation layer; and

a first optical layer disposed between the first passivation layer and the second passivation layer.

6. The display device of claim 5 , wherein the first optical layer includes polyvinyl alcohol.

7. The display device of claim 5 , wherein each of the first and second passivation layers includes at least one compound selected from triacetyl cellulose (TAC), polyethylene terephthalate (PET), a cycloolefin polymer (COP), and an acrylic polymer.

8. The display device of claim 5 , wherein the anti-reflection layer further includes a second optical layer disposed between the inorganic layer and the first passivation layer.

9. The display device of claim 5 , wherein:

the first optical layer includes I 5 − , I 3 − , and I − ; and

a concentration of I 5 − and I 3 − included in the first region is less than a concentration of I 5 − and I 3 − included in the second region.

10. The display device of claim 1 , wherein the first region is transparent.

11. A display device comprising:

a substrate;

a circuit part disposed on the substrate;

an encapsulation layer disposed on the circuit part;

an inorganic layer disposed on the encapsulation layer and including a groove, the inorganic layer including a silicon oxynitride (SiON); and

an anti-reflection layer disposed on the inorganic layer, the anti-reflection layer including a first region that overlaps the groove and a second region that is outside of the first region.

12. The display device of claim 11 , wherein the substrate includes a through hole overlapping the first region.

13. The display device of claim 11 , wherein:

the first region includes a region that is immediately adjacent to a region that directly overlaps the groove; and

an outermost edge of the groove is disposed inwardly of an edge of the first region.

14. The display device of claim 11 , wherein the encapsulation layer includes:

a first layer disposed on the circuit part; and

a second layer disposed on the first layer,

wherein the inorganic layer is disposed on the second layer.

15. The display device of claim 13 , wherein the encapsulation layer includes:

a first layer disposed on the circuit part;

a second layer disposed on the first layer; and

a third layer disposed on the second layer,

wherein the inorganic layer is disposed on the third layer.

16. The display device of claim 11 , wherein the display device further includes an adhesive layer disposed between the inorganic layer and the anti-reflection layer.

17. The display device of claim 11 , wherein a transmittance of light in a range of about 500 nm to about 700 nm of the first region is higher than a transmittance of light in a range of about 500 nm to about 700 nm of the second region.

18. The display device of claim 11 , wherein the anti-reflection layer includes:

a first passivation layer;

a second passivation layer overlapping the first passivation layer; and

a first optical layer disposed between the first passivation layer and the second passivation layer.

19. The display device of claim 18 , wherein the first optical layer includes polyvinyl alcohol.

20. The display device of claim 18 , wherein:

the first optical layer includes I 5 − , I 3 − , and I − ; and

a concentration of I 5 − and I 3 − included in the first region is less than a concentration of I 5 − and I 3 − included in the second region.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 21, 2020
From: LEE, DUK JUN; BEON, BEONG-HUN; YEON, JE SEON; KIM, MIN HA
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 052722/0102 →
Priority Claims (1)
KR 10-2019-0120591 · Sep 30, 2019 · national
Continuity (1)
Related Publication 20210096278A1 · Apr 1, 2021