IP Library Granted Patent US 12,300,772
Granted Patent B2
US 12,300,772 · App. 18/338,815 · Granted May 13, 2025

Light-emitting device, manufacturing method thereof and display module using the same

Inventors: Min-Hsun Hsieh (Hsinchu, TW); Hsin-Mao Liu (Hsinchu, TW); Ying-Yang Su (Hsinchu, TW)
Assignee: EPISTAR CORPORATION
H01L33/58H01L25/0753H01L27/156H01L33/50H01L33/505H01L33/507H01L33/508H01L33/60H01L24/16H01L24/29H01L24/32H01L24/83H01L2224/06102H01L2224/16238H01L2224/1703H01L2224/32225H01L2224/83192H01L2224/83862H01L2224/83886H01L2933/0058
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Quick Facts
Patent No.
US 12,300,772
App. No.
18/338,815
Granted
May 13, 2025
Kind
B2
Abstract

A light-emitting device includes a light-emitting element having a first-type semiconductor layer, a second-type semiconductor layer, an active stack between the first-type semiconductor layer and the second-type semiconductor layer, a bottom surface, and a top surface. A first electrode is disposed on the bottom surface and electrically connected to the first-type semiconductor layer. A second electrode is disposed on the bottom surface and electrically connected to the second-type semiconductor layer. A supporting structure is disposed on the top surface. The supporting structure has a thickness and a maximum width. A ratio of the maximum width to the thickness is of 2-150.

Claims (29)

1. A light-emitting device, comprising:

a first plurality of light-emitting units, arranged in a first row along a first direction, and comprising a first light-emitting unit placed in a first column of the first row and having a first left edge;

a supporting structure arranged on the first plurality of light-emitting units, and comprising a first plurality of openings which is arranged to correspond to the first plurality of light-emitting units and comprises a first opening devoid of any wavelength conversion structure; and

a second plurality of light-emitting units, arranged in a second row along a second direction, and comprising a second light-emitting unit placed in a first column of the second row and having a second left edge,

wherein the first direction and the second direction are parallel to each other,

wherein the first plurality of light-emitting units and the second plurality of light-emitting units are configured to emit a same color light, and

wherein, in a top view, the first left edge and the second left edge are parallel to each other and not flush with each other.

2. The light-emitting device according to claim 1 , wherein the first plurality of light-emitting units and the second plurality of light-emitting units are separated from each other by a space devoid of any light-emitting unit configured to emit the same color light.

3. The light-emitting device according to claim 1 , wherein, in the top view, the first light-emitting unit and the second light-emitting unit are partially overlapped with each other in a third direction perpendicular to the first direction.

4. The light-emitting device according to claim 1 , wherein any two adjacent light-emitting units of the first plurality of light-emitting units are separated by a first distance and any two adjacent light-emitting units of the second plurality of light-emitting units are separated by a second distance, and

wherein the first distance and the second distance are substantially equivalent.

5. The light-emitting device according to claim 1 , wherein, in the top view, the first plurality of light-emitting units comprises a third light-emitting unit placed in a last column of the first row and having a first right edge, the second plurality of light-emitting units comprises a fourth light-emitting unit placed in a last column of the second row and having a second right edge, the first right edge and the second right edge are parallel to each other and not flush with each other.

6. The light-emitting device according to claim 1 , wherein the first opening exposes only a portion of the first light-emitting unit.

7. The light-emitting device according to claim 1 , wherein any two adjacent light-emitting units of the first plurality of light-emitting units are separated by a first distance, any two adjacent openings of the first plurality of openings are separated by a third distance, and the first distance is different from the third distance.

8. A light-emitting module, comprising:

a substrate; and

a light-emitting device, arranged on the substrate, the light-emitting device comprising:

a first plurality of light-emitting units, arranged in a first row along a first direction, and comprising a first light-emitting unit placed in a first column of the first row and having a first left edge;

a supporting structure arranged on the first plurality of light-emitting units, and comprising a first plurality of openings which is arranged to correspond to the first plurality of light-emitting units and comprises a first opening devoid of any wavelength conversion structure; and

a second plurality of light-emitting units, arranged in a second row along a second direction, and comprising a second light-emitting unit placed in a first column of the second row and having a second left edge,

wherein the first direction and the second direction are parallel to each other,

wherein the first plurality of light-emitting units and the second plurality of light-emitting units are configured to emit a same color light, and

wherein, in a top view, the first left edge and the second left edge are parallel to each other and not flush with each other.

9. The light-emitting module according to claim 8 , wherein the first opening exposes only a portion of the first light-emitting unit.

10. The light-emitting module according to claim 8 , wherein any two adjacent light-emitting units of the first plurality of light-emitting units are separated by a first distance, any two adjacent openings of the first plurality of openings are separated by a third distance, and the first distance is different from the third distance.

11. The light-emitting module according to claim 10 , wherein, in the top view, the first light-emitting unit has a width in the first direction, the first distance is smaller than the width.

12. The light-emitting module according to claim 8 , wherein the supporting structure comprises a metal or an opaque material.

13. The light-emitting module according to claim 8 , wherein the supporting structure is further arranged on the second plurality of light-emitting units, and comprises a second plurality of openings corresponding to the second plurality of light-emitting units.

14. The light-emitting module according to claim 8 , further comprising a light-transmitting bonding material arranged between the supporting structure and the first plurality of light-emitting units.

Assignments (1)
CHANGE OF NAME Recorded Apr 22, 2026
From: EPISTAR CORPORATION
To: ENNOSTAR CORPORATION
Reel/Frame 075513/0783 →
Continuity (6)
Continuation 17332378 · May 27, 2021
Continuation 16866278 · May 4, 2020
Continuation 16254229 · Jan 22, 2019
Provisional Application 62632732 · Feb 20, 2018
Provisional Application 62620774 · Jan 23, 2018
Related Publication 20230335695A1 · Oct 19, 2023
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