# US 10,483,245 B2 · Light bar, edge-type backlight module and display device

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- Number: US 10,483,245 B2
- Document ID: US10483245B2
- Status: Granted
- Kind: B2
- Application number: 15/743,110
- Filed: 2017-08-09
- Published: 2019-04-04
- Granted: 2019-11-19
- Earliest claimed: 2016-11-02
- Assignees: Boe Technology Group Co., Ltd.; Beijing Roe Chatani Electronics Co., Ltd.
- Applicants: Boe Technology Group Co., Ltd.; Beijing Boe Chatani Electronics Co., Ltd.
- Inventors: Wenjun Li
- Web page: https://patentgrep.com/patent/US10483245B2

## CPC

- H10W 90/00: Package configurations
- F21S 4/28: rigid, e.g. LED bars
- G02B 6/0068: {Arrangements of plural sources, e.g. multi-colour light sources}
- G02B 6/0073: {Light emitting diode [LED]}
- G02B 6/0083: {Details of electrical connections of light sources to drivers, circuit boards, or the like}
- H10H 20/856: Reflecting means
- F21Y 2103/10: comprising a linear array of point-like light-generating elements
- F21Y 2115/10: Light-emitting diodes [LED]
- H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- 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

## Abstract

A light bar, an edge-type backlight module and a display device. The light bar includes a circuit board and an integrated light emitting body arranged on the circuit board, wherein the integrated light emitting body includes a package and a plurality of light sources, and the package is configured to package the plurality of light sources.

## Claims

### Claim 1

A light bar, comprising: a circuit board and an integrated light emitting body arranged on the circuit board,
wherein the integrated light emitting body comprises a package and a plurality of light sources, and the package is configured to package the plurality of light sources,
wherein a light emitting surface of the integrated light emitting body is perpendicular to a surface of the circuit board on which the integrated light emitting body is mounted, a distance between the light emitting surface and an edge of the surface of the circuit beard on which the integrated light emitting body is mounted, close to the light emitting surface and parallel to the light emitting surface is W1, and 0.3 mm≤W1≤1.0 mm.

### Claim 2 (depends on 1)

The light bar according to claim 1, wherein a material of the package is a light permeable material.

### Claim 3 (depends on 1)

The light bar according to claim 1, wherein the plurality of light sources are connected in parallel or in series.

### Claim 4 (depends on 1)

The light bar according to claim 1, wherein the light source is an LED, and a plurality of LEDs are packaged in a direct package way.

### Claim 5 (depends on 1)

The light bar according to claim 1, wherein along a length direction of the circuit board, a distance between an edge of the integrated light emitting board and a close edge of the circuit board is L1, and L1>0.5 mm.

### Claim 6 (depends on 1)

The light bar according to claim 1, wherein the integrated light emitting body is fixedly connected with the circuit board through a pad, and a radius of the pad R≤0.3 mm.

### Claim 7 (depends on 1)

The light bar according to claim 1, wherein a thickness of the circuit board is D1, and 0.06 mm≤D1≤0.12 mm.

### Claim 8 (depends on 1)

The light bar according to claim 1, wherein a thickness of the integrated light emitting body is D2, and 0.3 mm≤D2≤0.6 mm.

### Claim 9 (depends on 1)

An edge-type backlight module, comprising the light bar according to claim 1.

### Claim 10 (depends on 9)

The edge-type backlight module according to claim 9, further comprising a light guide plate, wherein the light guide plate is arranged on a light emitting surface side of the light bar, and the circuit board is arranged on the light guide plate.

### Claim 11 (depends on 10)

The edge-type backlight module according to claim 10, wherein the light bar is fixed to the light guide plate by a glue arranged on a main surface of the circuit board, the glue covers the light bar and exposes the integrated light emitting body.

### Claim 12 (depends on 11)

The edge-type backlight module according to claim 11, wherein along a width direction of the light bar, the glue exceeds a side edge of the light bar.

### Claim 13 (depends on 12)

The edge-type backlight module according to claim 12, wherein the width of the glue exceeding the edge of the light bar is W2, and 0.25 mm≤W2≤1.0 mm.

### Claim 14 (depends on 11)

The edge-type backlight module according to claim 11, further comprising an optical film arranged on a light exit side of the light guide plate, and the optical film overlaps the side edge that exceeds the light bar of the glue.

### Claim 15 (depends on 11)

The edge-type backlight module according to claim 11, wherein a thickness of the glue is D3, and 0.03 mm≤D3≤0.06 mm.

### Claim 16 (depends on 15)

The edge-type backlight module according to claim 15, wherein a gap between the glue and the integrated light emitting body is W3, and 0.1 mm≤W3≤0.15 mm.

### Claim 17 (depends on 9)

The edge-type backlight module according to claim 9, further comprising a light shielding tape, wherein the light shielding tape is arranged on a back surface of the circuit board of the light bar and extends from an edge of the circuit board onto the light guide plate.

### Claim 18 (depends on 17)

The edge-type backlight module according to claim 17, wherein a distance between a light exit surface of the light bar and an edge of the light shielding tape on the light guide plate is K, and 0.8 mm≤K≤2.0 mm.

### Claim 19 (depends on 9)

A display device, comprising the edge-type backlight module according to claim 9.
