# US 2017/0285407 A1 · Backlight module and display device

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

- Number: US 2017/0285407 A1
- Document ID: US20170285407A1
- Status: Published application
- Kind: A1
- Application number: 15/243,686
- Filed: 2016-08-22
- Published: 2017-10-05
- Earliest claimed: 2016-03-30
- Assignees: Le Holdings (Beijing) Co., Ltd.; Le Shi Zhi Xin Electronic Technology (Tian Jin) Limited
- Applicants: Le Holdings (Beijing) Co., Ltd.; Le Shi Zhi Xin Electronic Technology (Tian Jin) Limited
- Inventors: Kunpeng Zhu; Zhishuai Jia; Xianlei Meng; Jinnan Zhang; Fangdai Ye
- Web page: https://patentgrep.com/patent/US20170285407A1

## CPC

- G02F 1/133608: {including particular frames or supporting means}
- G02F 1/133611: {including means for improving the brightness uniformity}
- G02F 1/1333: Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence)
- G02F 1/133305: {Flexible substrates, e.g. plastics, organic film}
- G09F 9/301: {flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED}
- 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
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS

## Abstract

Disclosed are a backlight module and a display device. The backlight module includes an elastically deformable back cover, a memory structural piece connected with a bottom wall of the back cover, and a printed circuit board, wherein there is an electrically heating wire in the memory structural piece, both ends of the electrically heating wire are electrically connected with the printed circuit board to form a heating loop. With the technical solution according to the embodiment of the disclosure, the thickness of the display device can be decreased to thereby improve a display effect on a curve display surface of the display device, and furthermore displaying can be converted between the curve display surface and a planar display surface to thereby accommodate more application scenarios of the display device.

## Claims

### Claim 1

A backlight module, comprising an elastically deformable back cover, a memory structural piece connected with a bottom wall of the back cover, and a printed circuit board, wherein there is an electrically heating wire in the memory structural piece, both ends of the electrically heating wire are electrically connected with the printed circuit board to form a heating loop.

### Claim 2 (depends on 1)

The backlight module according to claim 1, wherein the memory structural piece is clad with a thermally insulating layer.

### Claim 3 (depends on 1)

The backlight module according to claim 1, wherein when the heating loop is opened, the memory structural piece is plane-shaped.

### Claim 4 (depends on 1)

The backlight module according to claim 1, wherein when the heating loop is closed, the memory structural piece is arced backward in a lengthwise direction of the back cover.

### Claim 5 (depends on 1)

The backlight module according to claim 1, wherein the memory structural piece is connected with a bottom inner wall of the back cover.

### Claim 6 (depends on 1)

The backlight module according to claim 1, wherein the memory structural piece is connected with a bottom outer wall of the back cover.

### Claim 7 (depends on 1)

The backlight module according to claim 1, wherein there are at least two memory structural pieces, each of which is shaped like a strip, and arranged in a lengthwise direction of the back cover.

### Claim 8 (depends on 1)

The backlight module according to claim 1, wherein the memory structural piece is a planar memory structural piece matching with the shape of the bottom wall of the back cover.

### Claim 9 (depends on 1)

The backlight module according to claim 1, wherein the memory structural piece is riveted, bonded, or bolted with the bottom wall of the back cover.

### Claim 10

A display device, comprising a backlight module and a display panel,
wherein the backlight module comprises an elastically deformable back cover, a memory structural piece connected with a bottom wall of the back cover, and a printed circuit board; wherein there is an electrically heating wire in the memory structural piece, both ends of the electrically heating wire are electrically connected with the printed circuit board to form a heating loop.

### Claim 11 (depends on 10)

The display device according to claim 10, wherein the memory structural piece is clad with a thermally insulating layer.

### Claim 12 (depends on 10)

The display device according to claim 10, wherein when the heating loop is opened, the memory structural piece is plane-shaped.

### Claim 13 (depends on 10)

The display device according to claim 10, wherein when the heating loop is closed, the memory structural piece is arced backward in a lengthwise direction of the back cover.

### Claim 14 (depends on 10)

The display device according to claim 10, wherein the memory structural piece is connected with a bottom inner wall of the back cover.

### Claim 15 (depends on 10)

The display device according to claim 10, wherein the memory structural piece is connected with a bottom outer wall of the back cover.

### Claim 16 (depends on 10)

The display device e according to claim 10, wherein there are at least two memory structural pieces, each of which is shaped like a strip, and arranged in a lengthwise direction of the back cover.

### Claim 17 (depends on 10)

The display device according to claim 10, wherein the memory structural piece is a planar memory structural piece matching with the shape of the bottom wall of the back cover.

### Claim 18 (depends on 10)

The display device according to claim 10, wherein the memory structural piece is riveted, bonded, or bolted with the bottom wall of the back cover.