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Touch display panel, composition for forming sealant, and sealant

A display panel and sealant technology, applied in adhesives, non-polymer organic compound adhesives, data processing input/output processes, etc. Control quality display quality and other issues to achieve the effect of increasing touch sensitivity and excellent elastic recovery force

Inactive Publication Date: 2012-02-22
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method will lose the aperture ratio of the touch display panel, and affect the touch quality and display quality of the touch display panel.

Method used

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  • Touch display panel, composition for forming sealant, and sealant
  • Touch display panel, composition for forming sealant, and sealant
  • Touch display panel, composition for forming sealant, and sealant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] The content of each component in the composition used to form the sealant 250 is shown in Table 1. In this embodiment 1, bisphenol A type epoxy monoacrylate monomer has 33 weight percent, acrylic acid monomer has 8 weight percent, photoinitiator has 0.8 weight percent, hardener has 4 weight percent, bisphenol A The type epoxy diacrylate monomer has 23 weight percent and the filler has 27 weight percent.

[0072] The polymer formed by the above composition after a polymerization reaction is used as the sealant 250 in the touch display panel 200 . The sealant 250 is subjected to an elastic recovery force test after light hardening and thermal hardening, wherein the conditions of the elastic recovery force test are: respectively apply different loads to the sealant 250, and measure the deformation of the sealant 250, the test The results are shown in Table 2 and figure 2 middle. And, let the displacement of the original state of the sealant 250 be zero when no force is...

Embodiment 2

[0076] The content of each component in the composition used to form the sealant 250 is shown in Table 1. In this embodiment 2, bisphenol A type epoxy monoacrylate monomer has 33 weight percent, acrylic acid monomer has 5 weight percent, photoinitiator has 0.5 weight percent, hardener has 4 weight percent, bisphenol A The type epoxy diacrylate monomer has 22 weight percent and the filler has 27 weight percent.

[0077] The polymer formed by the above composition after a polymerization reaction is used as the sealant 250 in the touch display panel 200 . The sealant 250 was subjected to an elastic recovery force test after light hardening and heat hardening, and the test results are shown in Table 2 and figure 2 middle. The conditions of the elastic recovery force test are the same as above, and according to the aforementioned calculation method of the elastic recovery force, the elastic recovery force RR of Example 2 is substantially 70.78%.

Embodiment 3

[0079] The content of each component in the composition used to form the sealant 250 is shown in Table 1. In this embodiment 3, bisphenol A type epoxy monoacrylate monomer has 33 weight percent, acrylic acid monomer has 2.5 weight percent, photoinitiator has 0.25 weight percent, hardener has 4 weight percent, bisphenol A The type epoxy diacrylate monomer has 30.5 weight percent and the filler has 27 weight percent.

[0080] The polymer formed by the above composition after a polymerization reaction is used as the sealant 250 in the touch display panel 200 . The sealant 250 was subjected to an elastic recovery force test after light hardening and heat hardening, and the test results are shown in Table 2 and figure 2 middle. The conditions of the elastic recovery force test are the same as above, and according to the aforementioned calculation method of the elastic recovery force, the elastic recovery force RR of Example 3 is substantially 64.45%.

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PUM

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Abstract

The invention discloses a touch display panel, a composition for forming a sealant, and the sealant. The touch display panel includes a first substrate, a second substrate, a touch sensing structure, a display medium and the sealant. The sealant seals the touch sensing structure and the display medium between the first substrate and the second substrate, wherein the sealant is formed by a composition undergoing a polymerization reaction. The above composition includes bisphenol A type epoxy monoacrylate monomer, acrylic monomer, photoinitiator and hardener. The bisphenol A type epoxy monoacrylate monomer has 20-50 weight percent. The acrylic acid monomer has 2 to 8 weight percent, and the acrylic monomer has the chemical formula shown in the following formula 1, wherein R1 is hydrogen or an alkyl group with 1 to 3 carbons, R2 is hydrogen or has 1 to 20 carbons carbon alkyl. The photoinitiator has 0.5-5 weight percent. The hardening agent has 1-5 weight percent.

Description

technical field [0001] The invention relates to a display panel, and in particular to a touch display panel and its sealant. Background technique [0002] In today's information age, human beings are increasingly dependent on electronic products. Notebook computers, mobile phones, personal digital assistants (personal digital assistants, PDAs), digital walkmans and other electronic products have become indispensable application tools in the life and work of modern people. The above-mentioned electronic products all have an input interface for inputting the user's required command, so that the internal system of the electronic product automatically executes the command. Currently, the most widely used input interface devices include keyboards, mice and touch panels. [0003] In recent years, touch display panels have been widely used in various electronic products, such as global positioning systems (GPS), personal digital assistants (PDAs), cellular phones (cellular phones...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041C09J4/02
Inventor 萧毅豪
Owner AU OPTRONICS CORP
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