# US 10,502,883 B2 · Backlight module and display apparatus thereof

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,502,883 B2
- Document ID: US10502883B2
- Status: Granted
- Kind: B2
- Application number: 15/735,315
- Filed: 2017-04-14
- Published: 2019-01-10
- Granted: 2019-12-10
- Earliest claimed: 2016-12-27
- Assignees: Hkc Corporation Limited; Chongqing Hkc Optoelectronics Technology Co., Ltd.
- Applicants: HKC Corporation Limited; Chongqing HKC Optoelectronics Technology Co., Ltd.
- Inventors: Yu-Jen Chen
- Web page: https://patentgrep.com/patent/US10502883B2

## CPC

- G02B 6/0028: {Light guide, e.g. taper}
- G02B 6/001: {the light being emitted along at least a portion of the lateral surface of the fibre}
- G02B 6/0031: {Reflecting element, sheet or layer}
- G02B 6/04: formed by bundles of fibres (G02B6/24 takes precedence)
- G02F 1/133524: {Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides}
- G02F 1/133615: {Edge-illuminating devices, i.e. illuminating from the side}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- 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 present disclosure is related to a backlight module and a display apparatus thereof. The display apparatus comprises a display panel and a backlight module. The backlight module comprises a light guide plate having a light incident side, a plurality of optical fiber bundles disposed at an edge of the light incident side of the light guide plate. Each of the optical fiber bundles comprises a light-guiding section and a light-outputting section, and a plurality of light-outputting sections of the plurality of optical fiber bundles are arranged at the light incident side of the light guide plate.

## Claims

### Claim 1

A backlight module, comprising:
a light guide plate, having a light incident side; and
a plurality of optical fiber bundles, disposed at an edge of the light incident side of the light guide plate;
wherein each of the optical fiber bundles comprises a light-guiding section and a light-outputting section, a plurality of the light-outputting sections of the plurality of optical fiber bundles arranged at the light incident side of the light guide plate,
wherein the light-guiding section and the light-outputting section on the same surface,
wherein each of the optical fiber bundles comprises a plurality of light-outputting section,
wherein the plurality of the light-outputting sections of the plurality of the optical fiber bundles are staggered,
wherein the light-guiding section of the optical fiber bundle comprises an optical fiber inner layer and a first optical fiber outer layer, a refractive index of the optical fiber inner layer is greater than a refractive index of the first optical fiber outer layer,
wherein the light-outputting section of the optical fiber bundle comprises the optical fiber inner layer and a second optical fiber outer layer, a refractive index of the second optical fiber outer layer is greater than the refractive index of the optical fiber inner layer,
wherein a ratio of a length of the light-outputting section to the light-guiding section is less than 1.

### Claim 2 (depends on 1)

The backlight module according to claim 1, wherein the plurality of the optical fiber bundles are distributed in an array so as to increase a size of a light spot of the plurality of the light-outputting sections.

### Claim 3 (depends on 1)

The backlight module according to claim 1, further comprising a light source for providing light for the plurality of optical fiber bundles.

### Claim 4

A backlight module, comprising:
a light guide plate, having a light incident side;
a plurality of optical fiber bundles, disposed at an edge of the light incident side of the light guide plate, each of the optical fiber bundles comprising a light-guiding section and at least two light-outputting sections, the light-outputting sections of the plurality of optical fiber bundles being arranged at the light incident side of the light guide plate; and
a light collecting reflector, configured for reflecting and guiding light transmitted from the plurality of the optical fiber bundles into the light incident side of the light guide plate;
wherein the plurality of the optical fiber bundles are distributed in an array so as to increase a size of a light spot of the plurality of the light-outputting sections, and a ratio of a length of the light-outputting section to the light-guiding section is less than 1,
wherein the light-guiding section and the light-outputting section on the same surface,
wherein the plurality of the light-outputting sections of the plurality of the optical fiber bundles are staggered,
wherein the light-guiding section of the optical fiber bundle comprises an optical fiber inner layer and a first optical fiber outer layer, a refractive index of the optical fiber inner layer is greater than a refractive index of the first optical fiber outer layer,
wherein the light-outputting section of the optical fiber bundle comprises the optical fiber inner layer and a second optical fiber outer layer, a refractive index of the second optical fiber outer layer is greater than the refractive index of the optical fiber inner layer.

### Claim 5

A display apparatus comprising a display panel and a backlight module, the backlight module comprising:
a light guide plate, having a light incident side; and
a plurality of optical fiber bundles, disposed at an edge of the light incident side of the light guide plate;
wherein each of the optical fiber bundles comprises a light-guiding section and a light-outputting section, a plurality of light-outputting sections of the plurality of optical fiber bundles arranged at the light incident side of the light guide plate,
wherein the light-guiding section and the light-outputting section on the same surface,
wherein each of the optical fiber bundles comprises a plurality of light-outputting section,
wherein the plurality of the light-outputting sections of the plurality of the optical fiber bundles are staggered,
wherein the light-guiding section of the optical fiber bundle comprises an optical fiber inner layer and a first optical fiber outer layer, a refractive index of the optical fiber inner layer is greater than a refractive index of the first optical fiber outer layer,
wherein the light-outputting section of the optical fiber bundle comprises the optical fiber inner layer and a second optical fiber outer layer, a refractive index of the second optical fiber outer layer is greater than the refractive index of the optical fiber inner layer,
wherein a ratio of a length of the light-outputting section to the light-guiding section is less than 1.

### Claim 6 (depends on 5)

The display apparatus according to claim 5, wherein the plurality of the optical fiber bundles are distributed in an array so as to increase a size of a light spot of plurality of the light-outputting sections.

### Claim 7 (depends on 5)

The display apparatus according to claim 5, wherein the backlight module further comprising a light source for providing light for the plurality of optical fiber bundles.