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US 10,895,678 B2Granted
Waveguide edge light shielding composition having excellent adhesive strength
AssigneeLG Chem, Ltd.
InventorsAreum Kim, Jaehyun Yoo, Sungeun Park, Joonhyung Kim
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Abstract
An ultraviolet curable composition and a waveguide manufactured from the same are disclosed herein. In an embodiment, an ultraviolet curable composition for light shielding of a waveguide, comprises a colorant, an acrylate monomer, a urethane acrylate oligomer, an organosilane and a photopolymerization initiator, wherein adhesion between the cured composition and a glass substrate is 5B or greater by a ASTM D3359 standard and/or is 1,500 mN or greater by a microscratch test (MST).
Claims17
An ultraviolet (UV) curable composition for light-shielding a rim side of a waveguide, comprising:
- a colorant, acrylate monomers, a urethane acrylate oligomer, an organosilane, and a photopolymerization initiator,
- wherein the acrylate monomers comprise a monofunctional acrylate monomer, a bifunctional acrylate monomer, and a polyfunctional acrylate monomer,
- wherein the content of the monofunctional acrylate monomer is 5 to 40% by weight and the content of the bifunctional acrylate monomer and the multifunctional monomer is from 10 to 70% by weight, based on the total weight of the composition,
- wherein a weight ratio of the acrylate monomers to the urethane acrylate oligomer is 2:1 to 6:1, and
- wherein, after curing the UV curable composition, adhesion between the cured composition and a glass substrate is 5B or more in accordance with ASTM D3359 standard, and 1500 mN or more in accordance with a microscratch test (MST).
2 more elements
Dependencies are inferred from the claim text.