IP Library Granted Patent US 11,476,236
Granted Patent B2
US 11,476,236 · App. 16/674,016 · Granted Oct 18, 2022

Display apparatus

Inventor: Chung Hoon Lee (Ansan-si, KR)
Assignee: SEOUL VIOSYS CO., LTD.
H01L25/0756H01L24/32H01L25/0753H01L33/08H01L33/32H01L33/44H01L33/62H01L2224/32145H01L2924/12041
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Quick Facts
Patent No.
US 11,476,236
App. No.
16/674,016
Granted
Oct 18, 2022
Kind
B2
Abstract

A display apparatus including a flexible substrate, a plurality of light emitting devices spaced apart from one another and disposed on the flexible substrate, and a light shielding layer disposed between the light emitting devices, and partially covering the light emitting devices to define light extraction surfaces, in which a distance between adjacent light extraction areas is the same.

Claims (49)

1. A light emitting device comprising:

a first insulating layer including a first area and a second area having a greater thickness than the first area;

a light emitting stacked structure including a plurality of light emitting parts sequentially disposed one over another along a first direction on the first area of the first insulating layer;

a plurality of via patterns disposed on the light emitting stacked structure and having substantially the same length along the first direction; and

a plurality of pads electrically connected to the light emitting stacked structure through the via patterns, respectively,

wherein the second area of the first insulating layer does not overlap the light emitting stacked structure, and

wherein at least one of the pads overlaps the second area of the first insulating layer and one of the via patterns.

2. The light emitting device according to claim 1 , wherein the second area of the first insulating layer surrounds the light emitting stacked structure.

3. The light emitting device according to claim 1 , wherein the light emitting parts are configured to emit light towards the first area of the first insulating layer.

4. The light emitting device according to claim 1 , wherein the pads contact the second area of the first insulating layer and one of the via patterns.

5. The light emitting device according to claim 1 , further comprising a second insulating layer disposed between the light emitting stacked structure and the second area of the first insulating layer,

wherein at least one of the pads contacts each of the second area of the first insulating layer, the second insulating layer, and one of the via patterns.

6. The light emitting device according to claim 1 , wherein at least a portion of each pad does not overlap the light emitting stacked structure.

7. A light emitting device comprising:

a first insulating layer including a first area and a second area having a greater thickness than the first area;

a light emitting stacked structure including a plurality of light emitting parts disposed one over another on the first area of the first insulating layer;

a plurality of via patterns disposed on the light emitting stacked structure; and

a plurality of pads electrically connected to the light emitting stacked structure through the via patterns, respectively,

wherein:

the second area of the first insulating layer does not overlap the light emitting stacked structure;

at least one of the pads overlaps the second area of the first insulating layer and one of the via patterns;

each of the light emitting parts includes a first semiconductor layer, an active layer, and a second semiconductor layer;

the first semiconductor layer of one of the light emitting parts has a substantially flat surface; and

each of the via patterns is disposed on the substantially flat surface of the first semiconductor layer.

8. The light emitting device according to claim 7 , wherein the second area of the first insulating layer surrounds the light emitting stacked structure.

9. The light emitting device according to claim 7 , wherein the light emitting parts are configured to emit light towards the first area of the first insulating layer.

10. The light emitting device according to claim 7 , wherein the pads contact the second area of the first insulating layer and one of the via patterns.

11. The light emitting device according to claim 7 , further comprising a second insulating layer disposed between the light emitting stacked structure and the second area of the first insulating layer,

wherein at least one of the pads contacts each of the second area of the first insulating layer, the second insulating layer, and one of the via patterns.

12. The light emitting device according to claim 7 , wherein at least a portion of each pad does not overlap the light emitting stacked structure.

13. The light emitting device according to claim 7 , further comprising a substrate including a plurality of electrodes respectively connected to the pads,

wherein a hardness of the substrate is less than a hardness of the light emitting stacked structure.

14. A light emitting device comprising:

a first insulating layer including a first area and a second area having a greater thickness than the first area;

a light emitting stacked structure including a plurality of light emitting parts on the first area of the first insulating layer;

a plurality of via patterns disposed on the light emitting stacked structure;

a plurality of pads electrically connected to the light emitting stacked structure through the via patterns, respectively; and

a substrate including a plurality of electrodes respectively connected to the pads,

wherein:

the second area of the first insulating layer does not overlap the light emitting stacked structure;

at least one of the pads overlaps the second area of the first insulating layer and one of the via patterns;

at least a portion of the bottom surface of the first insulating layer facing the substrate in the second area is exposed from the at least one of the pads; and

a hardness of the substrate is less than a hardness of the light emitting stacked structure.

15. The light emitting device according to claim 14 , wherein the second area of the first insulating layer surrounds the light emitting stacked structure.

16. The light emitting device according to claim 14 , wherein the light emitting parts are configured to emit light towards the first area of the first insulating layer.

17. The light emitting device according to claim 14 , wherein the pads contact the second area of the first insulating layer and one of the via patterns.

18. The light emitting device according to claim 14 , further comprising a second insulating layer disposed between the light emitting stacked structure and the second area of the first insulating layer,

wherein at least one of the pads contacts each of the second area of the first insulating layer, the second insulating layer, and one of the via patterns.

19. The light emitting device according to claim 14 , wherein at least a portion of each pad does not overlap the light emitting stacked structure.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 5, 2019
From: LEE, CHUNG HOON
To: SEOUL VIOSYS CO., LTD.
Reel/Frame 050911/0558 →
Continuity (2)
Provisional Application 62756894 · Nov 7, 2018
Related Publication 20200144233A1 · May 7, 2020
Cited By (1)
US 12,456,714