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Base plate and display device

A technology of substrates and parts by weight, applied in the field of substrate manufacturing, can solve problems such as the limitation of application scope, and achieve the effects of similar refractive index, excellent chemical corrosion resistance, and long life.

Inactive Publication Date: 2013-04-03
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prior art also relates to a flexible substrate for flexible displays. The flexible substrate is made of polymethyl methacrylate (PMMA) as the basic material, but its temperature resistance is only 90°C, and its application range is greatly restricted. limit
The heat resistance, air tightness and corrosion resistance of the above substrates need to be improved

Method used

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  • Base plate and display device
  • Base plate and display device
  • Base plate and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] PETG and PC were prepared according to conventional polymer material processing methods to obtain PETG first sheet 1 and PC second sheet 2, wherein the parts by weight of PETG and PC were 30 parts and 70 parts respectively, and no ultraviolet absorber was added and antioxidants. The first sheet of PETG 1 and the second sheet of PC 2 are bonded together, and the lamination method is adopted to obtain the following figure 1 The PETG and PC laminated substrates are shown. The advantage of this approach is that PETG has excellent chemical corrosion resistance and scratch resistance, which effectively protects the defects of PC that are not resistant to chemical corrosion and scratches. In addition, the airtightness of the laminated structure substrate has also been improved. However, the heat resistance of the PETG outer layer is not as good as that of the PC substrate, so the temperature resistance of the substrate in this embodiment is not as good as that of the PC subst...

Embodiment 2

[0031] Dry PC in a vacuum oven at 100°C for 5 hours, dry PETG in a vacuum oven at 65°C for 5 hours, mix PC and PETG evenly, wherein the weight parts of PC and PETG are 70 parts and 30 parts respectively The parts by weight of the ultraviolet absorber and the antioxidant are respectively 0.5 part and 0.5 part. Put the uniformly mixed material into the screw extruder to melt and extrude it, and then inject it to prepare such as figure 2 Substrate 3 of PETG blended with PC monolayer structure is shown. The difference between this embodiment and the embodiment 1 is that the raw materials are blended and then molded. The advantage is that the steps are less and simple, and a separate processing step is omitted. The test results are shown in Table 1.

Embodiment 3

[0033] This embodiment is consistent with the method of embodiment 1. The PETG and glass fiber reinforced PC are respectively prepared according to conventional polymer material processing methods to obtain a PETG first sheet 1 and a glass fiber reinforced PC second sheet 4 . Wherein, the parts by weight of PETG in the PETG first sheet 1 is 30 parts, and the content of ultraviolet absorber is 1% of PETG weight, and the content of antioxidant is 1% of PETG weight; In 4, the parts by weight of PC are 60 parts, the parts by weight of glass fiber are 10 parts, the content of ultraviolet absorber is 1% of the sum of PC and glass fiber weight, and the content of antioxidant is 1% of the sum of PC and glass fiber weight. 1%. The first sheet 1 of PETG and the second sheet 4 of PC reinforced by glass fiber are laminated to obtain the following image 3 Substrates of PETG and glass fiber reinforced PC laminate structures are shown. The advantage of this embodiment is that, through the...

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Abstract

The invention relates to the technical field of base plate manufacturing and discloses a base plate and a display device. The materials of the base plate mainly comprise polyethylene glycol terephthalate-1,4-cyclohexane dimethanol ester (PETG) and polycarbonate (PC). The base plate with an excellent single layer and a superposed structure is manufactured by carrying out polymer blending on the polyethylene glycol terephthalate-1,4-cyclohexane dimethanol ester, the polycarbonate and other auxiliaries. In particular, a base plate, which adopts a glass layer as an inner sandwich layer, and adopts PETG, PC, glass fiber and other auxiliaries as an outer layer, is manufactured. Through the test, the manufactured base plate has excellent light transmittance and temperature resistance, good acid and alkali resistance and chemical stability, low water vapor transmittance, excellent processing performance, high production efficiency, low energy consumption, environment-friendliness, and stable quality.

Description

technical field [0001] The invention relates to the technical field of substrate manufacturing, in particular to a substrate and a display device. Background technique [0002] With the progress of society and the development of science and technology, flexible display has attracted widespread attention due to its foldable and bendable properties, and can be widely used in e-books, bulletin boards, mobile carrying and other fields. As a flexible substrate, the plastic substrate has the advantages of being lighter, thinner, and more impact-resistant than glass and metal foil. However, the temperature resistance, water vapor resistance, oxygen resistance and chemical resistance of the substrate need to be improved. [0003] As a plastic substrate for flexible displays, it should have good dimensional stability, high glass transition temperature and low thermal expansion coefficient, excellent barrier properties, and excellent light transmittance and chemical resistance. In t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B27/18B32B27/36B32B17/10C08L69/00C08L67/02C08K7/14
Inventor 张雨
Owner BOE TECH GRP CO LTD
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