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A quantum dot glass light guide plate

A technology of quantum dot glass and light guide plate, applied in the direction of light guide, optics, optical components, etc., can solve the problems of cost, long-term reliability failure, etc., and achieve the effect of solving the problem of poor long-term stability

Active Publication Date: 2020-09-08
NINGBO DXC NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, quantum dots are generally used in glue and sandwiched between two barrier films, and their cost and long-term reliability are prone to failure due to the effects of oxygen and water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A quantum dot glass light guide plate, comprising a piece of quantum dot glass with a thickness of 0.8-3mm, the synthesis method of the quantum dot glass comprises the following steps:

[0025] S1: Na 2 CO 3 , B 2 o 3 , SiO 2 、Al 2 o 3 Mix evenly to form a glass base for later use.

[0026] S2: Add PbO and ZnSe respectively as the introduction of Pb and Se ions to the glass substrate prepared in step S1, and mix well and uniformly to form a quantum dot glass precursor for future use.

[0027] S3: In an inert atmosphere, PbSe quantum dot glass is formed by sintering at a high temperature of 1400°C and annealing at 550°C. The quantum dots are directly formed in the glass, which can protect the quantum dots from the intrusion of water and oxygen. The inert atmosphere is recommended to be a nitrogen atmosphere or a helium atmosphere, and the flow rate of the atmosphere is 300 sccm.

[0028] Among the above components, Na 2 CO 3 As a sodium source, the Na 2 CO 3 ...

Embodiment 2

[0040] A quantum dot glass light guide plate, comprising a piece of quantum dot glass with a thickness of 0.8-3mm, the synthesis method of the quantum dot glass comprises the following steps:

[0041] S1: Na 2 CO 3 , B 2 o 3 , SiO 2 、Al 2 o 3 Mix evenly to form a glass base for later use.

[0042] S2: Add PbO and ZnSe respectively as the introduction of Pb and Se ions to the glass substrate prepared in step S1, and mix well and uniformly to form a quantum dot glass precursor for future use.

[0043] S3: In an inert atmosphere, PbSe quantum dot glass is formed by sintering at 1300°C and then annealing at 500°C. The quantum dots are directly formed in the glass, which can protect the quantum dots from the intrusion of water and oxygen. The inert atmosphere is recommended to be a nitrogen atmosphere or a helium atmosphere, and the flow rate of the atmosphere is 100 sccm.

[0044] Among the above components, Na 2 CO 3 As a sodium source, the Na 2 CO 3 Decomposes to Na ...

Embodiment 3

[0056] A quantum dot glass light guide plate, comprising a piece of quantum dot glass with a thickness of 0.8-3mm, the synthesis method of the quantum dot glass comprises the following steps:

[0057] S1: Na 2 CO 3 、B 2 o 3 , SiO 2 、Al 2 o 3 Mix evenly to form a glass base for later use.

[0058] S2: Add PbO and ZnSe respectively as the introduction of Pb and Se ions to the glass substrate prepared in step S1, and mix well and uniformly to form a quantum dot glass precursor for future use.

[0059] S3: In an inert atmosphere, PbSe quantum dot glass is formed by sintering at a high temperature of 1450°C and then annealing at 580°C. The quantum dots are directly formed in the glass, which can protect the quantum dots from the intrusion of water and oxygen. The inert atmosphere is recommended to adopt nitrogen atmosphere or helium atmosphere, and the flow rate of the atmosphere is 200 sccm.

[0060] Among the above components, Na 2 CO 3 As a sodium source, the Na 2 CO ...

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Abstract

The invention discloses a quantum dot glass light guide plate. The quantum dot glass light guide plate is characterized in that a piece of 0.8-3 mm thickness of quantum dot glass is included, and a synthesis method of the quantum dot glass includes the following steps: S1, Na2CO3, B2O3, SiO2 and Al2O3 are evenly mixed to form a glass substrate for standby application; S2, PbO and ZnSe serve as introducing materials of Pb and Se ions to be added into the glass substrate prepared in the step S1, and full and even mixing is conducted to form a quantum dot glass precursor for standby application;and S3, under an inert atmosphere, after sintering at the high temperature of 1300-1500 DEG C, annealing is conducted at 500-600 DEG C to form PbSe quantum dot glass, the upper surface of the quantumdot glass is coated with a diffusion layer, the lower surface of the quantum dot glass is subjected to optical net point design, and a reflector is pasted on the lower surface of the quantum dot glass. Quantum dots are directly formed in the glass, contact between the quantum dots and water as well as oxygen is isolated through the glass, thus the quantum dots are not prone to being affected by the water and the oxygen, and the problem that long-term stability is poor when existing quantum dots are applied to a light guide plate is solved.

Description

technical field [0001] The invention relates to a quantum dot glass light guide plate. Background technique [0002] At present, the acrylic material is mostly used as the light guide plate of the liquid crystal display on the market, and the thickness of the acrylic light guide plate is usually more than 3 mm, which makes it difficult for designers to further reduce the thickness of the liquid crystal display. The latest glass light guide plate technology combines glass light guide plate, reflective sheet, diffuser, etc. to form a glass light guide plate. The thickness is usually 1-2mm, which can reduce the thickness of LCD by 70% and the weight of 30%. Therefore, the liquid crystal display becomes thinner, and the thickness can be less than 5mm. Moreover, the optical and mechanical properties of the glass light guide plate assembly are significantly better than those of the acrylic light guide plate. [0003] Liquid crystal displays have higher and higher requirements fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/00
CPCG02B6/0051G02B6/0055G02B6/0065
Inventor 罗培栋樊华伟王立超
Owner NINGBO DXC NEW MATERIAL TECH
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