Touch-sensitive display panel, composition for forming sealant and sealant

Abstract

The invention discloses a touch-sensitive display panel, a composition for forming a sealant and the sealant. The touch-sensitive display panel comprises a first base panel, a second base plate, a touch-sensitive structure, a display medium and the sealant, wherein the touch-sensitive structure and the display medium are sealed between the first base panel and the second base panel by the sealant; and the sealant is formed by the polyreaction of the composition. The composition comprises the components by weight percent: 20 to 50% of bisphenol A epoxy acrylate monomer, 2 to 8% of acrylic acid monomer, 0.5 to 5% of light initiating agent and 1 to 5% of hardening agent. The chemical formula of the acrylic acid monomer is showed in the formula 1, wherein R1 is hydrogen or an alkyl radical with 1 to 3 carbon atoms and R2 is hydrogen or an alkyl radical with 1 to 20 carbon atoms.

Description

Technical field

[0001] The invention relates to a display panel, and in particular to a touch-sensitive display panel and a sealant thereof. Background technique

[0002] In today's information age, mankind's dependence on electronic products is increasing day by day. Electronic products such as notebook computers, mobile phones, personal digital assistants (PDAs), and digital walkmans have all become indispensable application tools in modern life and work. The above-mentioned electronic products all have an input interface for inputting instructions required by the user, so that the internal system of the electronic product automatically executes the instructions. Currently, the most widely used input interface devices include keyboard, mouse, and touch panel.

[0003] In recent years, touch-sensitive display panels have been widely used in various electronic products, such as: Global Positioning System (GPS), Personal Digital Assistants (PDA), cellular phones and palmtop comput...

Examples

Embodiment 1

[0071] The content of each component in the composition used to form the sealant 250 is shown in Table 1. In Example 1, the bisphenol A epoxy monoacrylate monomer has 33 weight percent, the acrylic monomer has 8 weight percent, the photoinitiator has 0.8 weight percent, the hardener has 4 weight percent, and the 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 undergoes an elastic restoring force test after light hardening and thermal hardening. The conditions of the elastic restoring force test are: different loads are applied to the sealant 250, and the deformation of the sealant 250 is measured. The test The results are shown in Table 2 and figure 2 in. Also, let the displacement of the sealant 250 in its original state when no force is applied be zero, and the...

Embodiment 2

[0076] The content of each component in the composition used to form the sealant 250 is shown in Table 1. In this example 2, the bisphenol A epoxy monoacrylate monomer has 33 weight percent, the acrylic monomer has 5 weight percent, the photoinitiator has 0.5 weight percent, the hardener has 4 weight percent, and the 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 undergoes an elastic recovery test after light curing and thermal curing. The test results are shown in Table 2 and figure 2 in. The conditions of the elastic restoring force test are the same as above, and according to the calculation method of the elastic restoring force described above, the elastic restoring 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, the bisphenol A epoxy monoacrylate monomer has 33 weight percent, the acrylic monomer has 2.5 weight percent, the photoinitiator has 0.25 weight percent, the hardener has 4 weight percent, and the 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 undergoes an elastic recovery test after light curing and thermal curing. The test results are shown in Table 2 and figure 2 in. The conditions of the elastic restoring force test are the same as above, and according to the calculation method of the elastic restoring force described above, the elastic restoring force RR of Example 3 is substantially 64.45%.

Technical field

[0001] The invention relates to a display panel, and in particular to a touch-sensitive display panel and a sealant thereof. Background technique

[0002] In today's information age, mankind's dependence on electronic products is increasing day by day. Electronic products such as notebook computers, mobile phones, personal digital assistants (PDAs), and digital walkmans have all become indispensable application tools in modern life and work. The above-mentioned electronic products all have an input interface for inputting instructions required by the user, so that the internal system of the electronic product automatically executes the instructions. Currently, the most widely used input interface devices include keyboard, mouse, and touch panel.

[0003] In recent years, touch-sensitive display panels have been widely used in various electronic products, such as: Global Positioning System (GPS), Personal Digital Assistants (PDA), cellular phones and palmtop comput...

Examples

Embodiment 1

[0071] The content of each component in the composition used to form the sealant 250 is shown in Table 1. In Example 1, the bisphenol A epoxy monoacrylate monomer has 33 weight percent, the acrylic monomer has 8 weight percent, the photoinitiator has 0.8 weight percent, the hardener has 4 weight percent, and the 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 undergoes an elastic restoring force test after light hardening and thermal hardening. The conditions of the elastic restoring force test are: different loads are applied to the sealant 250, and the deformation of the sealant 250 is measured. The test The results are shown in Table 2 and figure 2 in. Also, let the displacement of the sealant 250 in its original state when no force is applied be zero, and the...

Embodiment 2

[0076] The content of each component in the composition used to form the sealant 250 is shown in Table 1. In this example 2, the bisphenol A epoxy monoacrylate monomer has 33 weight percent, the acrylic monomer has 5 weight percent, the photoinitiator has 0.5 weight percent, the hardener has 4 weight percent, and the 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 undergoes an elastic recovery test after light curing and thermal curing. The test results are shown in Table 2 and figure 2 in. The conditions of the elastic restoring force test are the same as above, and according to the calculation method of the elastic restoring force described above, the elastic restoring 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, the bisphenol A epoxy monoacrylate monomer has 33 weight percent, the acrylic monomer has 2.5 weight percent, the photoinitiator has 0.25 weight percent, the hardener has 4 weight percent, and the 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 undergoes an elastic recovery test after light curing and thermal curing. The test results are shown in Table 2 and figure 2 in. The conditions of the elastic restoring force test are the same as above, and according to the calculation method of the elastic restoring force described above, the elastic restoring force RR of Example 3 is substantially 64.45%.

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