IP Library Granted Patent US 10,575,400
Granted Patent B2
US 10,575,400 · App. 15/795,774 · Granted Feb 25, 2020

Light-emitting module

Inventor: Keiichi Maki (Suita, JP)
Assignee: Toshiba Hokuto Electronics Corporation
H05K1/0298F21V19/002F21V19/0025F21V23/005H05K1/111H05K1/181F21Y2115/10H05K2201/09227H05K2201/09245H05K2201/10106
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Quick Facts
Patent No.
US 10,575,400
App. No.
15/795,774
Granted
Feb 25, 2020
Kind
B2
Abstract

A light-emitting module according to an embodiment includes a first insulating film with light transmissive property, a plurality of mesh patterns including a plurality of first line patterns and a plurality of second line patterns, a light-emitting element, and a resin layer. The first line patterns are formed on the first insulating film and are parallel to one another. The second line patterns intersect with the first line patterns and are parallel to one another. The light-emitting element is connected to any two of a plurality of the mesh patterns. The resin layer holds the light-emitting element to the first insulating film. A first mesh pattern and a second mesh pattern adjacent to one another among the plurality of mesh patterns have a boundary. Line patterns projecting from the first mesh pattern to the boundary and line patterns projecting from the second mesh pattern to the boundary are collocated along the boundary in a state of being adjacent to one another.

Claims (77)

1. A light-emitting module comprising:

a first insulating film, the first insulating film at least partially light transmissive;

a plurality of conductor patterns comprising at least a first conductor pattern and a second conductor pattern;

at least a first light-emitting element, an anode of the first light-emitting element connected to the first conductor pattern and a cathode of the first light-emitting element connected to the second conductor pattern; and

a resin layer that holds the light-emitting element to the first insulating film,

the first conductor pattern comprising a plurality of first conductor pattern conductive lines on the first insulating film,

the second conductor pattern comprising a plurality of second conductor pattern conductive lines on the first insulating film,

a gap between the first conductor pattern and the second conductor pattern, the first conductor pattern and the second conductor pattern adjacent to each other along the gap, in at least a first portion of the gap;

some of the first conductor pattern conductive lines project into the gap and extend more than halfway across the gap, and

some of the second conductor pattern conductive lines project into the gap and extend more than halfway across the gap.

2. The light-emitting module according to claim 1 , wherein:

the first conductor pattern conductive lines comprise:

a plurality of first conductive lines, the first conductive lines being parallel to one another; and

a plurality of second conductive lines intersecting with the first conductive lines, the second conductive lines being parallel to one another.

3. The light-emitting module according to claim 2 , wherein:

the first conductor pattern conductive lines project into the gap from a first boundary of the gap,

the second conductor pattern conductive lines project into the gap from a second boundary of the gap, and

the first conductor pattern conductive lines that project into the gap from the first boundary of the gap and the second conductor pattern conductive lines that project into the gap from the second boundary of the gap are arranged in alternation along the gap.

4. The light-emitting module according to claim 2 , wherein:

the first conductor pattern comprises a first pad to which the anode of the first light-emitting element is connected,

two or more of the first conductor pattern conductive lines are connected to the first pad,

the second conductor pattern comprises a second pad to which the cathode of the first light-emitting element is connected, and

two or more of the second conductor pattern conductive lines are connected to the second pad.

5. The light-emitting module according to claim 2 , wherein the light-emitting module further comprises a second insulating film disposed opposed to the first insulating film.

6. The light-emitting module according to claim 5 , wherein:

the light-emitting module further comprises a mesh pattern formed on the second insulating film, the mesh pattern being constituted of a plurality of mesh pattern conductive lines, wherein

the first conductive lines and the second conductive lines intersect with the mesh pattern conductive lines.

7. The light-emitting module according to claim 6 , wherein the mesh pattern conductive lines include curved lines.

8. The light-emitting module according to claim 6 , wherein at least one of the first conductor pattern conductive lines and the second conductor pattern conductive lines are curved lines.

9. The light-emitting module according to claim 1 , wherein:

the light-emitting module comprises a plurality of light-emitting elements connected to a control circuit, the control circuit being configured to control the light-emitting elements that are connected to the control circuit, and

the light-emitting elements that are connected to the control circuit are in parallel to one another.

10. The light-emitting module according to claim 9 , wherein

ones of the anodes and the cathodes of the respective light-emitting elements are connected to a common conductor pattern.

11. The light-emitting module according to claim 1 , wherein:

the light-emitting module comprises a plurality of light-emitting elements disposed on a predetermined curved line, and

the conductor patterns have a fan shape specified by one set of straight lines perpendicular to the curved line.

12. The light-emitting module according to claim 1 , wherein:

the light-emitting module comprises a plurality of light-emitting elements disposed on a predetermined curved line, and

the respective conductor patterns are adjacent to one another via a side parallel to a predetermined straight line intersecting with the curved line.

13. The light-emitting module according to claim 1 , wherein:

the light-emitting module comprises a plurality of light-emitting elements,

the first conductor pattern conductive lines comprise:

a plurality of first conductive lines, the first conductive lines being parallel to one another;

a plurality of second conductive lines intersecting with the first conductive lines, the second conductive lines being parallel to one another; and

first connecting pads to which the light-emitting elements are connected, and

the first connecting pads are connected to respective first conductive lines and respective second conductive lines.

14. The light-emitting module according to claim 1 , wherein:

the first conductor pattern conductive lines comprise curved lines or polygonal shapes.

15. The light-emitting module according to claim 1 , wherein the first conductor pattern conductive lines comprise:

a plurality of first conductive lines, the first conductive lines being parallel to one another; and

a plurality of second conductive lines intersecting with the first conductive lines, the second conductive lines being parallel to one another, and

one of the plurality of conductor patterns and a wiring layer with a different height form a multilayer wiring.

16. The light-emitting module according to claim 1 , wherein

each of the conductor patterns comprises:

a plurality of first conductive lines, the first conductive lines being parallel to one another; and

a plurality of second conductive lines intersecting with the first conductive lines, the second conductive lines being parallel to one another, and

the plurality of conductor patterns or a unit of the plurality of conductor patterns and the first insulating film has a transmittance of 75% or more, and the conductor patterns has a sheet resistance of 100Ω or less.

17. The light-emitting module according to claim 16 , wherein

the plurality of conductor patterns have the sheet resistance of 70Ω or less.

18. The light-emitting module according to claim 16 , wherein

the plurality of conductor patterns have the sheet resistance of 30Ω or less.

19. The light-emitting module according to claim 16 , wherein

each of the first conductive lines and the second conductive lines has a line width of 20 μm or less.

20. The light-emitting module according to claim 16 , wherein

the first conductive lines have an arrangement pitch of 500 μm or less, and the second conducive lines have an arrangement pitch of 500 μm or less.

21. The light-emitting module according to claim 1 , wherein

the plurality of conductor patterns are constituted of fan shapes or sides parallel to a predetermined straight line, the plurality of conductor patterns having a surface formed into a curved surface.

22. The light-emitting module according to claim 1 , wherein:

the first pattern conductive lines project into the gap from a first boundary of the gap,

the second pattern conductive lines project into the gap from a second boundary of the gap, and

the gap between the first conductor pattern conductive lines that project from the first boundary of the gap and the second conductor pattern conductive lines that project from the second boundary of the gap is a wave shape.

23. The light-emitting module according to claim 1 , wherein:

the first pattern conductive lines project into the gap from a first boundary of the gap,

the second pattern conductive lines project into the gap from a second boundary of the gap, and

the gap between the first conductor pattern conductive lines that project from the first boundary of the gap and the second conductor pattern conductive lines that project from the second boundary of the gap is a zigzag shape.

24. The light-emitting module according to claim 1 , wherein a straight line cannot pass between the first conductor pattern conductive lines that project at the first boundary and the second conductor pattern conductive lines that project at the second boundary, and a wave shape can pass between the first conductor pattern conductive lines that project at the first boundary and the second conductor pattern conductive lines that project at the second boundary.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 29, 2021
From: TOSHIBA HOKUTO ELECTRONICS CORPORATION
To: NICHIA CORPORATION
Reel/Frame 058223/0932 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 27, 2017
From: MAKI, KEIICHI
To: TOSHIBA HOKUTO ELECTRONICS CORPORATION
Reel/Frame 043970/0261 →
Priority Claims (2)
JP 2015-094066 · May 1, 2015 · national
JP 2015-109959 · May 29, 2015 · national
Continuity (2)
Continuation PCTJP2016002237 · Apr 28, 2016
Related Publication 20180049318A1 · Feb 15, 2018