Invention Grant
- Patent Title: Method for fabricating a display dial for a portable object such as a timepiece and display dial obtained thereby
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Application No.: US14926211Application Date: 2015-10-29
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Publication No.: US09645286B2Publication Date: 2017-05-09
- Inventor: Michel Sagardoyburu
- Applicant: The Swatch Group Research and Development Ltd
- Applicant Address: CH Marin
- Assignee: The Swatch Group Research and Development Ltd
- Current Assignee: The Swatch Group Research and Development Ltd
- Current Assignee Address: CH Marin
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP14200000 20141223
- Main IPC: G02B27/02
- IPC: G02B27/02 ; G02B1/118 ; B29C39/02 ; G04B19/12

Abstract:
Method for fabricating a transparent display dial for a portable object, wherein the method includes the steps of: creating a mold with a first relief pattern for imprinting a decoration on at least a first portion of the surface of the transparent display dial, and with a second relief pattern for imprinting an antireflective filter on a second portion of the surface of the transparent display dial; depositing on the dial a mixed layer of a monomer and a cross-linking agent sensitive to ultraviolet radiation; applying the mold on the mixed monomer and cross-linking agent layer; solidifying the mixed monomer and cross-linking agent layer by photopolymerization under ultraviolet irradiation through the mold, and after insolation, removing the mold. The invention also concerns a transparent display dial obtained according to the method of the invention.
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