Pressure-sensitive capacitive touch screen

[0035] like figure 1 As shown, a pressure-sensitive capacitive screen includes a touch screen body, the touch screen body includes a cover glass layer 1 and a first optical adhesive layer 2 arranged under the cover glass layer 1, and the first optical adhesive layer 2 is set Visible area and non-visible area are arranged, and the lower surface of described non-visible area is provided with water-based ink layer 3, and the lower surface of described visible area is provided with transparent flat layer 4, and described water-based ink layer 3 and transparent flat layer The layers 4 are flush; the lower surface of the transparent flat layer 4 is sequentially laminated with a second optical adhesive layer 5, a first electrode layer 6, a third optical adhesive layer 7, a second electrode layer 8, a second optical adhesive layer, and Four optical glue layers 9 and a display screen 10 .

[0036]In the present invention, the first optical adhesive layer 2 is compounded on the lower surf

[0048] The difference between this embodiment and embodiment 1 is:

[0049] The third optical adhesive layer 7 is cured by UV optical adhesive, and the UV optical adhesive includes the following raw materials in parts by weight:

[0050]

[0051] Described acrylic acid prepolymer is made by the raw material of following percentage by weight:

[0052]

[0053] The balance is acetone.

[0054] Further, the preparation method of the acrylic acid prepolymer is as follows: methyl methacrylate, propoxylated neopentyl glycol diacrylate, ethoxyethoxy ethyl acrylate, 4-hydroxybutyl Acrylic acid ester, isooctyl methacrylate and azo initiator were added into acetone, mixed uniformly, heated to 60°C, reacted for 4 hours, and then distilled under reduced pressure to obtain the acrylic acid prepolymer.

[0055] Preferably, the kinematic viscosity of the methyl methacrylate is 0.66mm 2 / s, the dynamic viscosity of the 4-hydroxybutyl acrylate is 5.5mPa.s, the dynamic viscosity of the

[0061] The difference between this embodiment and embodiment 1 is:

[0062] The third optical adhesive layer 7 is cured by UV optical adhesive, and the UV optical adhesive includes the following raw materials in parts by weight:

[0063]

[0064] Described acrylic acid prepolymer is made by the raw material of following percentage by weight:

[0065]

[0066] The balance is acetone.

[0067] Further, the preparation method of the acrylic acid prepolymer is as follows: methyl methacrylate, propoxylated neopentyl glycol diacrylate, ethoxyethoxy ethyl acrylate, 4-hydroxybutyl Acrylic acid ester, isooctyl methacrylate and azo initiator were added into acetone, mixed uniformly, heated to 55°C, reacted for 2 hours, and then distilled under reduced pressure to obtain the acrylic acid prepolymer.

[0068] Preferably, the kinematic viscosity of the methyl methacrylate is 0.64mm 2 / s, the dynamic viscosity of the 4-hydroxybutyl acrylate is 5.3mPa.s, the dynamic viscosity of the