Method for manufacturing backlight module

Patent metadata

Field	Value
Publication number	US-2018299609-A1
Application number	US-201715580149-A
Country	US
Kind code	A1
Filing date	Aug 15, 2017
Priority date	Dec 31, 2016
Publication date	Oct 18, 2018
Grant date	—

Abstract

This application relates to a method for manufacturing a backlight module. The manufacturing method includes: providing a light guide plate, including a bottom surface and a plurality of screen dot recessed parts arranged in a two-dimensional manner, where the screen dot recessed parts are located on the bottom surface; filling a quantum dot material into each of the screen dot recessed parts; disposing a substrate on the bottom surface of the light guide plate, and sealing the quantum dot material in the screen dot recessed part of the light guide plate by using the substrate; and disposing a light source at one side of the light guide plate.

First claim

What is claimed is:

1 . A method for manufacturing a backlight module, comprising:
providing a light guide plate, comprising a bottom surface and a plurality of screen dot recessed parts arranged in a two-dimensional manner, wherein the screen dot recessed parts are located on the bottom surface; filling a quantum dot material into each of the screen dot recessed parts; disposing a substrate on the bottom surface of the light guide plate, and sealing the quantum dot material in the screen dot recessed part of the light guide plate by using the substrate; and disposing a light source at one side of the light guide plate.

2 . The method for manufacturing a backlight module according to claim 1 , wherein when disposing the substrate on the bottom surface of the light guide plate, the substrate and the light guide plate are engaged as an integral by using a laser.

3 . The method for manufacturing a backlight module according to claim 1 , wherein an optical film is disposed on the light guide plate.

4 . The method for manufacturing a backlight module according to claim 1 , wherein the light guide plate has a mixture of the quantum dot material and a printing solvent.

5 . The method for manufacturing a backlight module according to claim 4 , wherein the quantum dot material is an III-V group quantum dot material.

6 . The method for manufacturing a backlight module according to claim 4 , wherein the quantum dot material is an II-VI group quantum dot material.

7 . The method for manufacturing a backlight module according to claim 4 , wherein a material of the printing solvent is ink.

8 . The method for manufacturing a backlight module according to claim 1 , wherein the substrate comprises a reflective surface.

9 . The method for manufacturing a backlight module according to claim 8 , wherein the reflective surface is made of a high reflectivity material.

10 . The method for manufacturing a backlight module according to claim 1 , wherein a refractive index coefficient of the substrate is less than a refractive index coefficient of the light guide plate.

11 . The method for manufacturing a backlight module according to claim 1 , wherein the refractive index coefficient of the substrate is equal to the refractive index coefficient of the light guide plate.

12 . The method for manufacturing a backlight module according to claim 1 , wherein light excited by the light source has a wavelength in a range of 435 nanometers to 470 nanometers.

13 . The method for manufacturing a backlight module according to claim 1 , wherein the screen dot recessed parts are disposed in a density decreasing in a direction towards the light source.

14 . The method for manufacturing a backlight module according to claim 1 , wherein the screen dot recessed parts are disposed in a density increasing in a direction away from the light source.

15 . The method for manufacturing a backlight module according to claim 1 , wherein the quantum dot material has a yellow quantum dot material and a green quantum dot material.

16 . The method for manufacturing a backlight module according to claim 1 , wherein each of the screen dot recessed parts further comprises a separation glue.

17 . The method for manufacturing a backlight module according to claim 16 , wherein the separation glue seals the quantum dot material.

18 . A method for manufacturing a backlight module, comprising:
providing a light guide plate, comprising a bottom surface and a plurality of screen dot recessed parts arranged in a two-dimensional manner, wherein the screen dot recessed parts are located on the bottom surface; filling a quantum dot material into each of the screen dot recessed parts, wherein the quantum dot material has a yellow quantum dot material and a green quantum dot material. disposing a substrate on the bottom surface of the light guide plate, and sealing the quantum dot material in the screen dot recessed part of the light guide plate by using the substrate, wherein when disposing the substrate on the bottom surface of the light guide plate, the substrate and the light guide plate are engaged as an integral by using a laser, and a refractive index coefficient of the substrate is less than or equal to a refractive index coefficient of the light guide plate; and disposing a light source at one side of the light guide plate, wherein light excited by the light source has a wavelength in a range of 435 nanometers to 470 nanometers; wherein the screen dot recessed parts are disposed in a density decreasing in a direction towards the light source and the screen dot recessed parts are disposed in a density increasing in a direction away from the light source; and each of the screen dot recessed parts further comprises a separation glue, used for sealing the quantum dot material.

Assignees

• Hkc Corp Ltd
• Chongqing Hkc Optoelectronics Tech Co Limited

Inventors

• Lee Chia-Hang

Classifications

• G02B6/0036 Primary

  2-D arrangement of prisms, protrusions, indentations or roughened surfaces · CPC title

• G02B6/0058

  varying in density, size, shape or depth along the light guide · CPC title

• B82Y20/00

  Nanooptics, e.g. quantum optics or photonic crystals · CPC title

• G02F2202/36

  Micro- or nanomaterials · CPC title

• G02B6/0065

  Manufacturing aspects; Material aspects · CPC title