Backlight module and display device

Patent metadata

Field	Value
Publication number	US-11353744-B2
Application number	US-201916492312-A
Country	US
Kind code	B2
Filing date	Aug 16, 2019
Priority date	Jun 14, 2019
Publication date	Jun 7, 2022
Grant date	Jun 7, 2022

Abstract

A backlight module and a display device are provided. The backlight module includes a glass back plate. The glass back plate includes a flat portion and at least one scattering portion disposed on the flat portion. An inner surface of the at least one scattering portion is provided with a diffusion layer. The backlight module and the display device can simplify a process of the backlight module and improve an assembly performance.

First claim

What is claimed is:

1. A backlight module, comprising:
a glass back plate, comprising:
a flat portion; and
at least one scattering portion disposed on the flat portion, wherein an inner surface of the at least one scattering portion is provided with a diffusion layer;
wherein the backlight module further comprises at least one light bar, and the at least one light bar corresponds to a position of the at least one scattering portion; and
wherein the glass back plate has a receiving cavity, the at least one light bar is disposed in the receiving cavity, and the at least one light bar is fixed on a bottom of the flat portion;
wherein an inner surface of a bottom of the flat portion is provided with a reflective layer, and an orthographic projection of the reflective layer on a bottom of the flat portion does not overlap with an orthographic projection of the at least one light bar on the bottom of the flat portion; wherein the at least one light bar is fixed to the bottom of the flat portion by a support member, and the reflective layer is also provided at a position on the support member where the at least one light bar is not covered.

2. A backlight module, comprising:
a glass back plate, comprising:
a flat portion; and
at least one scattering portion disposed on the flat portion, wherein an inner surface of the at least one scattering portion is provided with a diffusion layer;
wherein the backlight module further comprises at least one light bar; wherein an inner surface of a bottom of the flat portion is provided with a reflective layer, and an orthographic projection of the reflective layer on a bottom of the flat portion does not overlap with an orthographic projection of the at least one light bar on the bottom of the flat portion; wherein the at least one light bar is fixed to the bottom of the flat portion by a support member, and the reflective layer is also provided at a position on the support member where the at least one light bar is not covered.

3. The backlight module according to claim 2 , wherein the at least one light bar corresponds to a position of the at least one scattering portion.

4. The backlight module according to claim 3 , wherein the glass back plate has a receiving cavity, the at least one light bar is disposed in the receiving cavity.

5. The backlight module according to claim 4 , wherein the at least one light bar is fixed on a bottom of the flat portion.

6. The backlight module according to claim 5 , wherein a height of the at least one light bar is greater than or equal to a height of the flat portion.

7. The backlight module according to claim 2 , wherein the at least one light bar is in one-to-one correspondence with the at least one scattering portion.

8. The backlight module according to claim 2 , wherein a cross-sectional shape of the least one scattering portion comprises at least one of a semicircular shape and an elliptical shape.

9. A display device comprising the backlight module of claim 2 .

10. The display device circuit according to claim 9 , further comprising a back frame and a liquid crystal display panel, wherein the back frame is disposed on two sides of the backlight module, and the liquid crystal display panel is disposed on the back frame.

Assignees

• Huizhou China Star Optoelectronics Tech Co Ltd

Inventors

• Fu Linlin
• Li Dehua

Classifications

• G02F1/133606 Primary

  including a specially adapted diffusing, scattering or light controlling members · CPC title

• G02F1/133603

  with LEDs · CPC title

• G02F1/133314

  Back frames · CPC title

• G02F1/133605

  including specially adapted reflectors · CPC title

• G02F2202/09

  inorganic glass · CPC title