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US 11,445,613 B2Granted
Method for manufacturing touch device and resin composition thereof
AssigneeLG Display Co., Ltd.
InventorsNakWon Kim, SeungKyu Choi, Seongjae Hong, Dongwook Shin
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Abstract
Discussed is a method for manufacturing a touch device, the method including forming a protective layer per touch sensor on first and second surfaces of a mother substrate on which two or more touch sensors are formed; dividing the mother substrate into two or more substrates of a touch sensor unit by mechanically cutting or chemically treating the mother substrate; chemically strengthening an edge of each of the divided substrates; and removing the protective layer from at least one divided substrate.
Claims5
A method for manufacturing a touch device, the method comprising:
- forming a protective layer per touch sensor on first and second surfaces of a mother substrate on which two or more touch sensors are formed;
- dividing the mother substrate into two or more substrates of a touch sensor unit by mechanically cutting or chemically treating the mother substrate;
- chemically strengthening an edge of each of the divided substrates;
- and
- removing the protective layer from at least one divided substrate,
- wherein in the forming of the protective layer, the protective layer is formed by coating a paste of a resin composition comprising a resin mixture of 20˜50% by weight which includes a phenol resin and an epoxy acrylate resin with a weight ratio of 10:90 to 90:10, and a solvent of 5 to 70% by weight on the first and second surfaces of the mother substrate,
- wherein the resin composition further comprises a filler of 10˜50% by weight selected from a group consisting of calcium carbonate, barium sulfate, titanium dioxide and silica,
- wherein the solvent is selected from a group consisting of dipropylene glycol methyl ether, butyl carbitol, and terpineol,
- wherein the phenol resin is one of a novolac or a resol, and
- wherein in the removing of the protective layer, the protective layer is stripped by one of an aqueous potassium hydroxide solution or an aqueous amine-based solution.
7 more elements
Dependencies are inferred from the claim text.