# US 10,480,760 B2 · Light source module

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- Number: US 10,480,760 B2
- Document ID: US10480760B2
- Status: Granted
- Kind: B2
- Application number: 15/737,709
- Filed: 2016-06-22
- Published: 2019-01-03
- Granted: 2019-11-19
- Earliest claimed: 2015-06-24
- Assignees: LG Innotek Co., Ltd.
- Applicants: LG Innotek Co., Ltd.
- Inventors: Byeong Guk Min
- Web page: https://patentgrep.com/patent/US10480760B2

## CPC

- F21V 19/0015: {Fastening arrangements intended to retain light sources}
- F21S 4/28: rigid, e.g. LED bars
- H05K 1/142: {Arrangements of planar printed circuit boards in the same plane, e.g. auxiliary printed circuit insert mounted in a main printed circuit}
- H05K 1/181: associated with surface mounted components
- F21Y 2105/12: characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
- F21Y 2105/16: square or rectangular, e.g. for light panels
- F21Y 2113/30: {of visible and non-visible spectrum}
- F21Y 2115/10: Light-emitting diodes [LED]
- H05K 2201/09409: Multiple rows of pads, lands, terminals or dummy patterns; Multiple rows of mounted components
- H05K 2201/10106: Light emitting diode [LED]
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

An embodiment provides a lighting source module. The lighting source module includes: a plurality of first light emitting devices having a first light emitting chip and first phosphor and emitting white light having a first color temperature; a plurality of second light emitting devices having a second light emitting chip and second phosphor, and emitting white light having a second color temperature; and a plurality of circuit boards having the first and second light emitting devices thereon, in which columns of the first light emitting devices and columns of the second light emitting devices are alternately disposed on the circuit boards, and column of light emitting devices emitting white light having the same color temperature are disposed at both ends of the circuit boards.

## Claims

### Claim 1

A lighting source module comprising:
a plurality of first light emitting devices having a first light emitting chip and first phosphor and emitting white light having a first color temperature;
a plurality of second light emitting devices having a second light emitting chip and second phosphor, and emitting white light having a second color temperature; and
a plurality of circuit boards having the first and second light emitting devices thereon,
wherein columns of the first light emitting devices and columns of the second light emitting devices are alternately disposed on the circuit boards,
wherein column of light emitting devices emitting white light having the same color temperature are disposed at both ends of the circuit boards,
wherein the plurality of circuit boards is disposed in a first direction,
wherein each of the plurality of circuit boards has a different length from each other in the first direction,
wherein the plurality of first light emitting devices disposed on the plurality of circuit boards are electrically connected to each other, and
wherein the plurality of second light emitting devices disposed on the plurality of circuit boards are electrically connected to each other.

### Claim 2 (depends on 1)

The lighting source module of claim 1, wherein the first and second light emitting devices are disposed at least in two rows, and first columns of the first light emitting devices are disposed at both ends of the circuit boards.

### Claim 3 (depends on 1)

The lighting source module of claim 1, wherein the first and second light emitting devices are disposed at least in two rows, and second columns of the second light emitting devices are disposed at both ends of the circuit boards.

### Claim 4 (depends on 1)

The lighting source module of claim 1, wherein a first column of the first light emitting devices and a second column of the second light emitting devices are disposed in an area close to a joint between the circuit boards.

### Claim 5 (depends on 1)

The lighting source module of claim 1, wherein the first light emitting devices disposed on the circuit boards are connected in series, in parallel, or in series-parallel, and
the second light emitting devices disposed on the circuit boards are connected in series, in parallel, or in series-parallel.

### Claim 6 (depends on 1)

The lighting source module of claim 1, wherein a difference between the first color temperature and the second color temperature is 1000K or more.

### Claim 7 (depends on 1)

The lighting source module of claim 1, wherein the first light emitting devices are cool white LEDs, and the second light emitting devices are warm white LEDs.

### Claim 8 (depends on 1)

The lighting source module of claim 1, wherein numbers of the first and second light emitting devices disposed on any one of the circuit boards are different.

### Claim 9 (depends on 1)

The lighting source module of claim 1, wherein a plurality of connector substrates electrically connecting different circuit boards is disposed on the circuit boards.

### Claim 10

A lighting source module comprising:
a plurality of circuit boards;
a plurality of light emitting devices disposed on the plurality of circuit boards; and
a plurality of connector substrates connecting the plurality of circuit boards,
wherein the light emitting devices emit light having different color temperatures and columns of light emitting devices emitting light having the same color temperature are disposed at both ends of the circuit boards,
wherein the light emitting devices include a plurality of first light emitting devices emitting white light having a first color temperature and a plurality of second light emitting devices emitting white light having a second color temperature,
wherein the plurality of circuit boards is disposed in a first direction,
wherein each of the plurality of circuit boards has a different length from each other in the first direction,
wherein the plurality of first light emitting devices disposed on the plurality of circuit boards are electrically connected to each other,
wherein the plurality of second light emitting devices disposed on the plurality of circuit boards are electrically connected to each other, and
wherein a number of the first light emitting devices and the second light emitting devices disposed on any one of the plurality of circuit boards is different.

### Claim 11 (depends on 10)

The lighting source module of claim 10, wherein
the first color temperature is higher than the second color temperature, and
columns of the first light emitting devices are disposed at both ends of the circuit boards.

### Claim 12 (depends on 11)

The lighting source module of claim 11, wherein columns of the first light emitting devices and columns of the second light emitting devices are alternately disposed on the circuit boards.

### Claim 13 (depends on 10)

The lighting source module of claim 10, wherein two or more light emitting devices are disposed in the columns.

### Claim 14 (depends on 13)

The lighting source module of claim 13, wherein the light emitting devices are disposed at least in two rows, and a gap between the connector substrates is larger than a gap between the light emitting devices.

### Claim 15 (depends on 13)

The lighting source module of claim 13, wherein columns of light emitting devices emitting light having different color temperatures are disposed in a joint area between the circuit boards.

### Claim 16 (depends on 10)

The lighting source module of claim 10, wherein a difference between the first color temperature and the second color temperature is 1000K or more, and
a number of columns of the first light emitting devices is larger than a number of columns of the second light emitting devices.

### Claim 17 (depends on 16)

The lighting source module of claim 16, wherein the first light emitting devices are cool white LEDs and the second light emitting devices are warm white LEDs.

### Claim 18 (depends on 10)

The lighting source module of claim 10, wherein the light emitting devices emit light having at least three color temperatures.

### Claim 19 (depends on 10)

The lighting source module of claim 10, wherein a transparent cover is disposed on light emission sides of the light emitting devices.