# US 2017/0285241 A1 · Backlight module

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- Number: US 2017/0285241 A1
- Document ID: US20170285241A1
- Status: Published application
- Kind: A1
- Application number: 14/417,651
- Filed: 2014-12-03
- Published: 2017-10-05
- Earliest claimed: 2014-11-14
- Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd.
- Applicants: Shenzhen China Star Optoelectronics Technology Co., Ltd.
- Inventors: Yanxue ZHANG
- Web page: https://patentgrep.com/patent/US20170285241A1

## CPC

- G02B 6/0021: {for housing at least a part of the light source, e.g. by forming holes or recesses}
- F21S 8/00: Lighting devices intended for fixed installation (F21S9/00, F21S10/00 take precedence; using a string or strip of light sources F21S4/00)
- G02B 6/0031: {Reflecting element, sheet or layer}
- G02B 6/0068: {Arrangements of plural sources, e.g. multi-colour light sources}
- G02B 6/0091: {of the light source relative to the light guide (G02B6/0021 takes precedence)}
- G02F 1/133608: {including particular frames or supporting means}
- G02B 6/0036: {2-D arrangement of prisms, protrusions, indentations or roughened surfaces}
- G02B 6/0055: {Reflecting element, sheet or layer}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- 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

The invention discloses a backlight module, comprising: a light guide plate provided with a strip-shaped slot, a light bar, which comprises a base plate and a plurality of mounting bases mounted on the base plate, each mounting base is provided with a lighting element respectively, wherein the base plate of the light bar is configured to engage with the first surface of the light guide plate, such that all the mounting bases can be accommodated within the strip-shaped slot. It is unnecessary for the backlight module to set up rubber frame and back plate, hence, the backlight module without outer frame border is formed.

## Claims

### Claim 1

A backlight module, comprising:
a light guide plate provided with a strip-shaped slot, and
a light bar, comprising a base plate and a plurality of mounting bases mounted on the base plate, each mounting base being provided with a lighting element,
wherein the base plate of the light bar is configured to engage with a first surface of the light guide plate, so that all the mounting bases are accommodated within the strip-shaped slot.

### Claim 2 (depends on 1)

The backlight module according to claim 1, wherein the base plate completely covers the strip-shaped slot.

### Claim 3 (depends on 2)

The backlight module according to claim 2, wherein the strip-shaped slot extends in parallel to an outer side face of the light guide plate.

### Claim 4 (depends on 3)

The backlight module according to claim 3, wherein the backlight module further comprises of a reflective sheet, which is attached to a second surface of the light guide plate opposite to the first surface thereof, the mounting bases being abutted against the reflective sheet after passing through the strip-shaped slot.

### Claim 5 (depends on 4)

The backlight module according to claim 4, wherein the light guide plate further comprises a positioning tab, which protrudes from the second surface and abuts against one side face of the reflective sheet, the height of the positioning tab being equal to the thickness of the reflective sheet.

### Claim 6 (depends on 5)

The backlight module according to claim 5, wherein the backlight module further comprises an optical film attached to the first surface of the light guide plate and abutted against one side face of the base plate, the thickness of the base plate being equal to the thickness of the optical film.

### Claim 7 (depends on 6)

The backlight module according to claim 6, wherein the backlight module further comprises a transparent double-sided adhesive, one side of which is attached to the optical film and the base plate, while the other side thereof is used for gluing a LCD screen.

### Claim 8 (depends on 7)

The backlight module according to claim 7, wherein each side face of the base plate not abutted against the optical film is flush with a corresponding outer side face of the light guide plate, each outer side face of the transparent double-sided adhesive is flush with a corresponding outer side face of the light guide plate, and each side face of the reflective sheet not abutted against the positioning tab is flush with a corresponding outer side face of the light guide plate.

### Claim 9 (depends on 1)

The backlight module according to claim 1, wherein the backlight module further comprises a back plate, which comprises a horizontal plate part and two vertical plate parts projecting from opposite ends of the horizontal plate part respectively to the same side of the horizontal plate part, two opposite side faces of the light guide plate being abutted against the two vertical plate parts respectively, the other two side faces of the light guide plate being flush with corresponding side faces of the horizontal plate part respectively, with the strip-shaped slot being parallel to the vertical plate part.

### Claim 10 (depends on 1)

The backlight module according to claim 1, wherein the mounting base is abutted against an incident surface of the light guide plate, and the lighting element is installed in an installation hole in a side face of the mounting base which is abutted against the incident surface.