Method for forming flexible cover lens films
AssigneeAres Materials Inc.
InventorsRadu Reit, Adrian Avendano-Bolivar, Apostolos Voutsas, David Arreaga-Salas
Life of this patent
Estimating the term…
Abstract
Display modules typically incorporate a transparent hard material such as glass on the outside of the module in order to better protect the display stack from scratches, dents, and other mechanical deformations. However, as displays move to novel form factors such as bendable, foldable, and reliable display modules, these transparent hard materials (e.g., glass) may not be used due to their limited flexibility. Therefore, it is desirable that replacement materials be sufficiently flexible while maintaining the desirable optical (e.g., >90% transmission and low yellow index) and mechanical properties (e.g., pencil hardness>H) that comparable glass hard materials offer.
Claims18
A method for forming a flexible cover lens comprising:
- mixing at least one multifunctional thiol monomer and at least one multifunctional comonomer to provide a thiol-containing composition, wherein the thiol-containing composition further comprises a dye selected from the group consisting of a xanthene, an azobenzene, an anthroquinone, a triphenylmethane, a thianaphthenone, a benzanthrone, a benzothiazole, a phenothiazine, a thianthrene, and any combination thereof;
- depositing the thiol-containing composition on a substrate;
- curing the thiol-containing composition into an amorphous thermoset film, and
- employing the thermoset film as a flexible cover lens by removing the substrate and coupling the thermoset film to a display stack.
A method for forming a flexible cover lens comprising:
- mixing at least one multifunctional thiol monomer of pentaerythritol tetrakis(3-mercaptopropionate) and at least one multifunctional comonomer of isophorone diisocyanate to provide a thiol-containing composition;
- wherein the thiol-containing composition further comprises a dye selected from the group consisting of a xanthene, an azobenzene, an anthroquinone, a triphenylmethane, a thianaphthenone, a benzanthrone, a benzothiazole, a phenothiazine, a thianthrene, and any combination thereof;
- depositing the thiol-containing composition on a silicone-coated polyester substrate;
- curing the thiol-containing composition into an amorphous polythiourethane thermoset film, and
- employing the polythiourethane thermoset film as a flexible cover lens atop a flexible display module by removing the substrate and coupling the polythiourethane thermoset film to a display stack.
Dependencies are inferred from the claim text.