Light-emitting device and the manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-2019221728-A1
Application number	US-201916250774-A
Country	US
Kind code	A1
Filing date	Jan 17, 2019
Priority date	Jan 17, 2018
Publication date	Jul 18, 2019
Grant date	—

Abstract

An embodiment of present disclosure discloses a light-emitting device which includes a first light-emitting unit, a second light-emitting unit, a first optic structure, a second optic structure, a first light-transmitting structure, a second light-transmitting structure, and a light-blocking structure. The first optic structure covers a top surface and a side surface of the first light-emitting unit, the second optic structure covers a top surface and a side surface of the second light-emitting unit. The first light-transmitting structure covers the first optic structure. The second light-transmitting structure covers the second optic structure. The light-blocking structure surrounds the first light-emitting unit and the second light-emitting unit, and covers the side surfaces of the first optic structure, the second optic structure, the first light-transmitting structure and the second light-transmitting structure.

First claim

What is claimed is:

1 . A light-emitting device, comprising:
a first light-emitting unit having a first top surface, a first side surface and a first bottom surface; a second light-emitting unit having a second top surface, a second side surface and a second bottom surface; a first pair of conductive electrodes disposed on the first bottom surface; a second pair of conductive electrodes disposed on the second bottom surface; a first optic structure having a first outer side surface and covering the first top surface and the first side surface; a second optic structure having a second outer side surface and covering the second top surface and the second side surface; a first light-transmitting structure having a third outer side surface and covering the first optic structure; a second light-transmitting structure having a fourth outer side surface and covering the second optic structure; and a light-blocking structure surrounding the first light-emitting unit and the second light-emitting unit, the light-blocking structure covering the first outer side surface, the second outer side surface, the third outer side surface and the fourth outer side surface.

2 . The light-emitting device of claim 1 , wherein the first outer side surface is substantially coplanar with the third outer side surface.

3 . The light-emitting device of claim 1 , wherein the light-blocking structure is in direct contact with the first outer side surface and the third outer side surface.

4 . The light-emitting device of claim 1 , wherein the first light-transmitting structure includes a first wavelength-converting material, the second light-transmitting structure includes a second wavelength-converting material different from the first wavelength-converting material.

5 . The light-emitting device of claim 1 , wherein the first optic structure and the second optic structure do not include wavelength-converting material.

6 . The light-emitting device of claim 1 , wherein the shape of the first light-emitting unit is different from the shape of the first light-transmitting structure in a top view.

7 . The light-emitting device of claim 1 , wherein the shape of the first light-transmitting structure is different from the shape of the light-blocking structure in a top view.

8 . The light-emitting device of claim 1 , wherein the first pair of conductive electrodes includes a second bottom surface and the second bottom surface is not flush with the first light-transmitting structure.

9 . The light-emitting device of claim 1 , wherein the first pair of conductive electrodes includes a second bottom surface and the second bottom surface is not flush with the light-blocking structure.

10 . The light-emitting device of claim 1 , wherein the light-blocking structure includes an outermost side not parallel with the third outer side surface.

11 . The light-emitting device of claim 1 , wherein the first light-transmitting structure has a third top surface, the second light-transmitting structure has a fourth top surface, the light-blocking structure has a fifth top surface, and the third top surface is substantially coplanar with the fifth top surface.

12 . The light-emitting device of claim 11 , wherein the fourth top surface is substantially coplanar with the fifth top surface.

13 . The light-emitting device of claim 1 , wherein the first optic structure has a third bottom surface, the second optic structure has a fourth bottom surface, the light-blocking structure has a fifth bottom surface, and the third bottom surface is substantially coplanar with the fifth bottom surface.

14 . The light-emitting device of claim 13 , wherein the fourth bottom surface is substantially coplanar with the fifth bottom surface.

15 . The light-emitting device of claim 14 , wherein the first bottom surface is substantially coplanar with the third bottom surface and the second bottom surface is substantially coplanar with the fourth bottom surface.

16 . The light-emitting device of claim 7 , wherein the shape of the light-blocking structure is rectangular and the shape of the light-transmitting structure is non-rectangular.

17 . The light-emitting device of claim 16 , wherein the shape of the light-transmitting structure is circular, hexagonal, triangle, ellipse or pentagon.

18 . The light-emitting device of claim 1 , further comprising a third light-emitting unit having a sixth top surface and a third side surface, a third optic structure having a fifth outer side surface and covering the six top surface and the third side surface, a third light-transmitting structure having a sixth outer side surface and covering the third optic structure.

19 . The light-emitting device of claim 18 , wherein the light-blocking structure surrounds the third light-emitting unit and covers the fifth outer side surface and the sixth outer side surface.

20 . The light-emitting device of claim 18 , wherein the third light-transmitting structure includes a third wavelength-converting material different from the first wavelength-converting material and the second wavelength-converting material.

Assignees

• Epistar Corp

Inventors

• Yu Jen-Chieh
• Renn Yih-Hua
• Liu Hsin-Mao
• Lai Lung-Kuan
• Cheng Ching-Tai

Classifications

• H10W90/00 Primary

  Package configurations · CPC title

• H01L33/58

  Electricity · mapped topic

• H01L33/507 Primary

  Electricity · mapped topic

• H01L25/13

  Electricity · mapped topic

• H10H20/855

  Optical field-shaping means, e.g. lenses · CPC title