Quantum dots (QD) glass cells, and the manufacturing methods and applications thereof

• US 9,818,917 B2
• Filed: 06/28/2017
• Issued: 11/14/2017
• Est. Priority Date: 08/10/2015
• Status: Active Grant

• Current Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Original Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Inventors: Fan, Yong
• Primary Examiner(s): DIALLO, MAMADOU L
• Application Number:
  US15/636,186
• Publication Number:
  US 20170301833A1
• Time in Patent Office: 139 Days
• CPC Class Codes: B82Y 20/00 Nanooptics, e.g. quantum optics or photonic crystals
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: B82Y 40/00 Manufacture or treatment of nanostructures
• CPC Class Codes: H01L 2933/0041 relating to wavelength conversion elements
• CPC Class Codes: H01L 33/501 characterised by the materials, e.g. binder
• CPC Class Codes: H01L 33/502 Wavelength conversion materials
• CPC Class Codes: H01L 33/505 characterised by the shape, e.g. plate or foil
• CPC Class Codes: H01L 33/507 the elements being in intimate contact with parts other than the semiconductor body or integrated with parts other than the semiconductor body
• CPC Class Codes: Y10S 977/774 Exhibiting three-dimensional carrier confinement, e.g. quantum dots
• CPC Class Codes: Y10S 977/824 Group II-VI nonoxide compounds, e.g. CdxMnyTe
• CPC Class Codes: Y10S 977/825 Heterojunction formed between semiconductor materials that differ in that they belong to different periodic table groups
• CPC Class Codes: Y10S 977/89 Deposition of materials, e.g. coating, cvd, or ald
• CPC Class Codes: Y10S 977/892 Liquid phase deposition
• CPC Class Codes: Y10S 977/95 Electromagnetic energy

Abstract

A QD glass cell includes a glass cell and QD fluorescent powder material. The glass cell includes a receiving chamber, and the QD fluorescent powder being encapsulated within the receiving chamber. A manufacturing method of the QD glass cell includes: S101: manufacturing a glass cell comprising a receiving chamber, and the glass cell comprising an injection port transmitting fluid into the receiving chamber; S102: manufacturing fluid QD fluorescent powder material; S103: filling the fluid QD fluorescent powder material into the receiving chamber via the injection port; S104: applying a curing process to the fluid QD fluorescent powder material within the receiving chamber; and S105: sealing the injection port by hot melting to obtain the QD glass cell. In addition, the above QD glass cell may be applied to LED light source.

Claims

1. A manufacturing method of a quantum dot (QD) glass cell, comprising:

S101;

manufacturing a glass cell comprising a receiving chamber, and the glass cell comprising an injection port transmitting fluid into the receiving chamber;

S102;

manufacturing a QD fluorescent powder material that is in a fluid form and comprises a gel material, which comprises one of an ultraviolet curable adhesive and an infrared curable adhesive, and QD fluorescent powder mixed with the gel material;

S103;

filling the QD fluorescent powder material into the receiving chamber via the injection port;

S104;

applying a curing process to the QD fluorescent powder material within the receiving chamber; and

S105;

sealing the injection port by hot melting to obtain the QD glass cell.

2. The manufacturing method of the QD glass cell as claimed in claim 1, wherein in step S104, the curing process comprises application of ultraviolet light or infrared light.

3. The manufacturing method of the QD glass cell as claimed in claim 1, wherein a thickness of a wall of the QD glass cell is in a range between 0.1 mm and 0.7 mm.

4. The manufacturing method of the QD glass cell as claimed in claim 1, wherein a weight percentage of the QD fluorescent powder within the QD fluorescent powder material is in a range between 1% and 20%.

5. The manufacturing method of the QD glass cell as claimed in claim 1, wherein the QD fluorescent powder comprises one of CdSe/ZnSe, CdSe/ZnS, CdS/ZnS, CdS/HgS, CdSe/ZnS/CdS, CdSe/CdS/ZnS, InP/CdS, CuInS and graphene xxide QDs.