Light Engine Array

• US 20150362165A1
• Filed: 06/12/2015
• Published: 12/17/2015
• Est. Priority Date: 06/14/2014
• Status: Active Grant

• Current Assignee: Hiphoton Co., Ltd.
• Original Assignee: Hiphoton Co., Ltd.
• Inventors: CHU, Chen-Fu, CHU, Chen-Hsien
• Granted Patent: US 9,831,387 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01L 2224/8192 Applying permanent coating, e.g. protective coating
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 25/167 comprising optoelectronic devices, e.g. LED, photodiodes
• CPC Class Codes: H01L 27/156 two-dimensional arrays
• CPC Class Codes: H01L 2933/0041 relating to wavelength conversion elements
• CPC Class Codes: H01L 33/0093 Wafer bonding; Removal of the growth substrate
• CPC Class Codes: H01L 33/32 containing nitrogen
• CPC Class Codes: H01L 33/38 with a particular shape
• CPC Class Codes: H01L 33/504 Elements with two or more wavelength conversion materials
• CPC Class Codes: H01L 33/508 having a non-uniform spatial arrangement or non-uniform concentration, e.g. patterned wavelength conversion layer, wavelength conversion layer with a concentration gradient of the wavelength conversion material
• CPC Class Codes: H01L 33/58 Optical field-shaping elements
• CPC Class Codes: H01L 33/62 Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls

Abstract

The invention discloses a light engine array comprises a multiple light engines arranged into an array, multiple dams located on a first surface of the light engines; and the dams combined a dam array.

Claims

1. A light engine array comprising:

multiple light engines arranged into an array,

multiple dams located on a street region and a first surface of the light engines; and

the dams combined a dam array.

2. The light engine array according to claim 1, wherein:

each light engine comprises;

a conductive metal layer located on a same height level.

3. The light engine array according to claim 2, wherein:

a street region set between neighboring light engines, and

each light engine comprises;

an anode located on a backplane;

an bonding layer located on the anode;

a p-type layer located on the conductive metal layer;

an active layer located on the p-type layer;

a n-type layer located on the active layer; and

an isolation layer set on a the street region to cover on the sidewall of the p-type layer, the active layer and the n-type layer; and

a polymer set in the street region

wherein, the conductive metal layer located on the bonding layer, and multiple anodes combines an anode array.

4. The light engine array according to claim 3, wherein:

a common cathode located on one side of the light engine array;

the common cathode coupled to the light engine array; and

the light engine array uses the same common cathode.

5. The light engine array according to claim 4, wherein:

the light engine array uses the same n-type layer.

6. The light engine array according to claim 4, further comprising:

a TCL layer located on the n-type layer and the street polymer;

wherein, each dam located on the TCL layer.

7. The light engine array according to claim 5, wherein:

each dam located on the n-type layer.

8. The light engine array according to claim 1, wherein:

each light engine comprises;

a first LED unit; and

a second LED unit;

wherein, the first LED unit connects the second LED unit.

9. The light engine array according to claim 8, further comprising:

an anode;

a p-electrode located on the anode;

a first p-contact located on the p-electrode and contacted the p-electrode;

the first LED unit located on a first n-contact and the first p-contact;

a cathode;

a n-electrode located on the cathode;

a second n-contact located on the n-electrode and contacted the n-electrode;

the second LED unit located on the second n-contact and second p-contact; and

a connecting layer connected the first n-contact and the second p-contact.

10. The light engine array according to claim 8, further comprising:

an anode;

a p-electrode located on the anode;

a first p-contact located on the p-electrode and contacted the p-electrode;

the first LED unit located on a n-contact and the first p-contact;

a cathode;

a n-electrode connected to the cathode and located on the second LED unit;

the second LED unit located on the second p-contact; and

a connecting layer connected the n-contact and the second p-contact;

wherein, the light engine array uses the common cathode.

11. The light engine array according to claim 1, wherein:

each light engine comprises;

a first LED unit; and

a second LED unit;

wherein, the first LED unit and the second LED unit use a same anode.

12. The light engine array according to claim 11, wherein:

structure of the second LED unit is mirrored to structure of the first LED unit.

13. The light engine array according to claim 12, wherein:

the first LED unit comprises;

a first cathode;

a first n-electrode located on the first cathode;

a first p-electrode located on the anode;

a first p-type layer located on the p-electrode;

a first n-type layer located on the first n-electrode; and

a first active layer set between the first p-type layer and the first n-type layer;

the second LED unit comprises;

a second cathode;

a second n-electrode located on the first cathode;

a second p-electrode located on the anode;

a second p-type layer located on the p-electrode;

a second n-type layer located on the first n-electrode; and

a second active layer set between the second p-type layer and the second n-type layer;

wherein, the first p-electrode and the second p-electrode connect to the same anode.

14. The light engine array according to claim 12, wherein:

the first LED unit comprises;

a first cathode;

a first p-electrode located on the first cathode;

a first p type layer located on a first p-electrode;

a first n type layer set on the the first p type layer;

an first active layer set between the first p type layer and the first n type layer; and

a first n-electrode located on the first n type layer; and

the second LED unit comprises;

a second cathode;

a second p-electrode located on the second cathode,

a second p type layer located on a second p-electrode;

a second n type layer set on the second p type layer;

a second active layer set between the second p type layer and the second n type layer; and

a second n-electrode located on the second n type layer;

wherein, the first n-electrode and the second n-electrode connected to a common cathode.

15. The light engine array according to claim 1, wherein:

the dam array is provided as a frame to fill with a color converter or a color filter.

16. The light engine array according to claim 1, wherein:

gap size of the neighboring dams is to control an aperture size of the corresponding light engine.