IP Library Granted Patent US 11,530,804
Granted Patent B2
US 11,530,804 · App. 17/153,050 · Granted Dec 20, 2022

Light-emitting device

Inventors: Min-Hsun Hsieh (Hsinchu, TW); Ying-Yang Su (Hsinchu, TW); Shih-An Liao (Hsinchu, TW); Hsin-Mao Liu (Hsinchu, TW); Tzu-Hsiang Wang (Hsinchu, TW); Chi-Chih Pu (Hsinchu, TW)
Assignee: EPISTAR CORPORATION
F21V23/005H01L25/0753H01L25/167H01L33/62F21Y2115/10
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Quick Facts
Patent No.
US 11,530,804
App. No.
17/153,050
Granted
Dec 20, 2022
Kind
B2
Abstract

A light-emitting device includes a first light-emitting module, a second light-emitting module, a conductive layer and an insulation layer. The first light-emitting module includes a first substrate having a first cavity, a first sidewall, and a light-emitting component disposed on the first substrate. The second module includes a second substrate having a second cavity corresponding to the first cavity and a second sidewall corresponding to the first sidewall. The conductive layer is directly connected to the first cavity and the second cavity and electrically connect the first light-emitting module and the second light-emitting module. The insulation layer is directly connected to the first sidewall and the second sidewall.

Claims (28)

1. A light-emitting device, comprising:

a first light-emitting module, comprising a first substrate comprising a first cavity and a first sidewall;

a second light-emitting module, comprising a second substrate comprising a second cavity corresponding to the first cavity and a second sidewall corresponding to the first sidewall;

a light-emitting component, disposed on the first substrate;

a conductive layer connecting the first cavity and the second cavity and electrically connected to the first light-emitting module and the second light-emitting module; and

an insulation layer connected to the first sidewall and the second sidewall.

2. The light-emitting device according to claim 1 , wherein the first substrate comprises a top surface and a bottom surface corresponding to the top surface, and the conductive layer is exhibited on the top surface or under the bottom surface.

3. The light-emitting device according to claim 2 , further comprising a first circuit disposed on the top surface and adjacent to the first cavity.

4. The light-emitting device according to claim 3 , wherein the first circuit is located at a position staggered with the first cavity.

5. The light-emitting device according to claim 2 , further comprising a first circuit disposed on the top surface and a second circuit disposed under the bottom surface, and the first circuit is electrically connected to the second circuit.

6. The light-emitting device according to claim 1 , further comprising a first circuit disposed on the first substrate and a second circuit disposed on the second substrate, and wherein the first circuit is electrically connected to the second circuit.

7. The light-emitting device according to claim 1 , wherein the first cavity further comprises an inner surface and the inner surface is a non-smooth surface.

8. The light-emitting device according to claim 1 , further comprising a protective layer covering and directly contacting with the light-emitting component, the first substrate, the second substrate, and the conductive layer.

9. The light-emitting device according to claim 1 , wherein more than 80% of light emitted by the light-emitting component can pass through the insulation layer.

10. The light-emitting device according to claim 1 , the first substrate comprising a top surface and a bottom surface, and wherein the light-emitting component is disposed on the top surface and a driving chip is disposed under the bottom surface so that the light-emitting component is controlled by the driving chip.

11. A light-emitting device, comprising:

a first light-emitting module, comprising a first substrate, and the first substrate comprising a cavity and a first sidewall, wherein the cavity comprises an inner surface, and the inner surface is a non-smooth surface;

a second light-emitting module, comprising a second substrate, and the second substrate comprising a second sidewall corresponding to the cavity and the first sidewall;

a light-emitting component disposed on the first substrate; and

a conductive layer, directly connected to the cavity and sidewalls, and electrically connected to the first light-emitting module and the second light-emitting module.

12. The light-emitting device according to claim 11 , wherein the first substrate comprises a top surface and a bottom surface corresponding to the top surface, and the conductive layer is exposed on the top surface or under the bottom surface.

13. The light-emitting device according to claim 12 , further comprising a first circuit disposed on the top surface and adjacent to the cavity.

14. The light-emitting device according to claim 13 , wherein the first circuit is located at a position staggered with the cavity.

15. The light-emitting device according to claim 12 , further comprising a first circuit disposed on the top surface and a second circuit disposed under the bottom surface, and the first circuit is electrically connected to the second circuit.

16. The light-emitting device according to claim 11 , further comprising a first circuit disposed on the first substrate and a second circuit disposed on the second substrate, and wherein the first circuit is electrically connected to the second circuit.

17. The light-emitting device according to claim 11 , further comprising a protective layer covering and directly contacting with the light-emitting component, the first substrate, the second substrate, and the conductive layer.

18. The light-emitting device according to claim 11 , further comprising an insulation layer connected to the first sidewall and the second sidewall, and wherein more than 80% of light emitted by the light-emitting component can pass through the insulation layer.

19. The light-emitting device according to claim 11 , the first substrate comprising a top surface and a bottom surface, and wherein the light-emitting component is disposed on the top surface and a driving chip is disposed under the bottom surface so that the light-emitting component is controlled by the driving chip.

Assignments (2)
CHANGE OF NAME Recorded Feb 18, 2026
From: EPISTAR CORPORATION
To: ENNOSTAR CORPORATION
Reel/Frame 075171/0402 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 21, 2021
From: HSIEH, MIN-HSUN; SU, YING-YANG; LIAO, SHIH-AN; LIU, HSIN-MAO; WANG, TZU-HSIANG; PU, CHI-CHIH
To: EPISTAR CORPORATION
Reel/Frame 055055/0838 →
Priority Claims (1)
TW 109102633 · Jan 22, 2020 · national
Continuity (1)
Related Publication 20210222861A1 · Jul 22, 2021