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Flexible touch screen base material and preparation method thereof

A flexible touch screen and base material technology, applied in coatings, instruments, electrical digital data processing, etc., can solve problems such as thick thickness, restrictions on flexible applications, and impact on the flexibility and bendability of flexible OLEDs, to achieve enhanced packaging effects, TFE The effect of enhancing water and oxygen blocking ability

Inactive Publication Date: 2018-08-07
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The packaging protection of flexible OLEDs usually uses cover glass. Although the packaging effect is acceptable, it severely limits the application of flexibility, and the thin film packaging materials in the flexible packaging currently developed have a thicker thickness when they reach a certain high hardness. problem, which greatly affects the flexible and bendable performance of flexible OLEDs, and the water and oxygen blocking ability of the packaging structure needs to be improved
Meanwhile, touch screens (TP) used in conjunction with flexible OLEDs have also been developed, such as figure 1 As shown, the TP of flexible OLEDs released by various R&D institutions or companies usually acts on a substrate, and then the substrate is glued to the flexible OLED to realize the TP film group and the cover glass of the flexible OLED. The combination between the TP substrates is usually COP / PET / PC / PEN, etc., and the thickness is tens of microns or even hundreds of microns. The thickness is relatively thick, and it is glued to the OLED, which further increases the overall thickness. The limitations of the current TP substrate and the way of glue bonding severely limit the flexible and bendable performance of flexible OLEDs.

Method used

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preparation example Construction

[0034] The preparation method of the above-mentioned flexible TP substrate is to add nanomaterials to the main material of the substrate, mix them uniformly, and then form a film by coating.

[0035] Such as figure 2 As mentioned above, the flexible OLED display panel containing the flexible TP base material of the present invention includes a flexible OLED component 21 at the bottom, a thin film encapsulation structure 22 located on the flexible OLED component 21, and a flexible TP substrate directly coated on the thin film encapsulation structure 22. material 23 and the flexible touch screen 24 directly disposed on the flexible touch screen substrate 23 .

Embodiment 1

[0038] Nano-silicon nitride with a particle size of 10nm and a weight ratio of 0.1% is dissolved in a transparent PI solution by ultrasonic oscillation, and then stirred at a constant speed under certain conditions for a certain period of time to form a certain copolymerization modification between nano-silicon nitride and transparent PI. The compatibility between the two is improved, the chemical bond is formed between the two, and the interfacial bonding between the two is enhanced. Then the prepared flexible TP substrate is directly coated on the TEF by coating, while the flexible TP It is directly arranged on the flexible TP substrate, and the thickness of the prepared flexible TP substrate is 2-40 μm.

Embodiment 2

[0040] Nano-silicon nitride with a particle size of 60nm and a weight ratio of 50% is dissolved in a transparent PI solution by ultrasonic oscillation, and then stirred at a constant speed under certain conditions for a certain period of time to form a certain copolymerization modification between nano-silicon nitride and transparent PI. The compatibility between the two is improved, the chemical bond is formed between the two, and the interfacial bonding between the two is enhanced. Then the prepared flexible TP substrate is directly coated on the TEF by coating, while the flexible TP It is directly arranged on the flexible TP substrate, and the thickness of the prepared flexible TP substrate is 2-40 μm.

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Abstract

The invention relates to a flexible touch screen base material and a preparation method thereof. The flexible touch screen base material is characterized in that the flexible touch screen base material includes a nano material with a weight percentage being 0.1-80 wt% and a base material main body material; the base material main body material is one selected from transparency PI, acrylic materials or epoxy resin; and the nano material is one selected from nanometer silicon nitride, nanometer SiO2, nanometer Al2O3, nanometer aluminium nitride, nanometer TiO2, nanometer ZrO2, nanometer MgO, ornanometer HfO2. The invention also relates to a preparation method of the flexible touch screen base material and a display panel containing the flexible touch screen base material. Compared to the prior art, the flexible touch screen base material of the invention has performance of thin thickness, high hardness, friction resistance, and being soft and bendable.

Description

technical field [0001] The invention relates to the field of touch screens, in particular to a flexible touch screen substrate and a preparation method thereof. Background technique [0002] Organic light-emitting diode (OLED), as a brand-new display technology, has significant advantages in various performances, such as all-solid-state, self-luminous, high brightness, high resolution, fast response, thin thickness, small size, weight Lightweight, so that it is widely used in lighting systems, communication systems, high-definition displays and even military and other technical fields. [0003] The packaging protection of flexible OLEDs usually uses cover glass. Although the packaging effect is acceptable, it severely limits the application of flexibility, and the thin film packaging materials in the flexible packaging currently developed have thicker thickness when they reach a certain high hardness. However, this greatly affects the flexibility and bendability of flexible...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D179/08C09D133/12C09D163/00C09D201/00C09D123/12C09D7/61G06F3/041
Inventor 肖玲
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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