# US 2014/0153221 A1 · Printed circuit board, and lighting device and backlight unit including the same

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- Number: US 2014/0153221 A1
- Document ID: US20140153221A1
- Status: Published application
- Kind: A1
- Application number: 14/091,755
- Filed: 2013-11-27
- Published: 2014-06-05
- Earliest claimed: 2012-11-30
- Assignees: LG Innotek Co., Ltd.
- Applicants: LG Innotek Co., Ltd.
- Inventors: Seung Kwon HONG; Hyun Gyu PARK; In Hee CHO; Hyuk Soo LEE
- Web page: https://patentgrep.com/patent/US20140153221A1

## CPC

- F21V 19/003: {Fastening of light source holders, e.g. of circuit boards or substrates holding light sources}
- H05K 1/028: {Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence)}
- G02F 1/133612: {Electrical details}
- H05K 1/0278: {Rigid circuit boards or rigid supports of circuit boards locally made bendable, e.g. by removal or replacement of material}
- H05K 3/0061: {onto a metallic substrate, e.g. a heat sink (heat sinks for electric apparatus H05K7/20)}
- H05K 2201/0394: Conductor crossing over a hole in the substrate or a gap between two separate substrate parts
- H05K 2201/09063: Holes or slots in insulating substrate not used for electrical connections
- H05K 2201/10106: Light emitting diode [LED]
- H05K 2203/302: Bending a rigid substrate; Breaking rigid substrates by bending
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

Provided is a printed circuit board including: a support substrate including a first area in which a light emitting device is mounted, and a second area extending from the first area; a bending part which is configured such that a part between the first area and the second area is bent; a through hole passing through the bending part; a connection wiring connected to the light emitting device and disposed on the bending part; and a wiring connected to the connection wiring.

## Claims

### Claim 1

A printed circuit board, comprising:
a support substrate including a first area in which a light emitting device is mounted, and a second area extending from the first area;
a bending part which is configured such that a part between the first area and the second area is bent;
a through hole passing through the bending part;
a connection wiring connected to the light emitting device and disposed on the bending part; and
a wiring connected to the connection wiring.

### Claim 2 (depends on 1)

The printed circuit board of claim 1, further comprising a pad part for connecting the light emitting device and the connection wiring.

### Claim 3 (depends on 1)

The printed circuit board of claim 1, wherein the wiring is disposed on the second area.

### Claim 4 (depends on 1)

The printed circuit board of claim 1, further comprising an insulating substrate formed on the support substrate.

### Claim 5 (depends on 4)

The printed circuit board of claim 4, wherein the wiring is formed on the insulating substrate.

### Claim 6 (depends on 1)

A lighting device comprising the printed circuit board of claim 1.

### Claim 7 (depends on 1)

A backlight unit comprising the printed circuit board of claim 1.

### Claim 8

A printed circuit board, comprising:
a support substrate including a first area in which a light emitting device is mount, and a second area extending from the first area;
a bending part which is configured such that a part between the first area and the second area is bent;
a connection wiring connected to the light emitting device and disposed at one side end corresponding to another side end of the first area in which the bending part is formed; and
a wiring connected to the connection wiring.

### Claim 9 (depends on 8)

The printed circuit board of claim 8, further comprising: a first insulating substrate disposed at the support substrate of one surface of the first area; and a second insulating substrate disposed at the support substrate of another surface of the first area.

### Claim 10 (depends on 9)

The printed circuit board of claim 9, wherein the light emitting device is mounted on the first insulating substrate.

### Claim 11 (depends on 9)

The printed circuit board of claim 9, further comprising a pad part disposed on the first insulating substrate and for connecting the light emitting device and the connection wiring.

### Claim 12 (depends on 9)

The printed circuit board of claim 9, wherein the wiring is disposed on the second insulating substrate.

### Claim 13 (depends on 8)

A lighting device comprising the printed circuit board of claim 8.

### Claim 14 (depends on 8)

A backlight unit comprising the printed circuit board of claim 8.

### Claim 15 (depends on 2)

A lighting device comprising the printed circuit board of claim 2.

### Claim 16 (depends on 3)

A lighting device comprising the printed circuit board of claim 3.

### Claim 17 (depends on 4)

A lighting device comprising the printed circuit board of claim 4.

### Claim 18 (depends on 5)

A lighting device comprising the printed circuit board of claim 5.
