公开(公告)号：US11809038B2

公开(公告)日：2023-11-07

申请号：US17487458

申请日：2021-09-28

Applicant: The Swatch Group Research and Development Ltd

Inventor： Michel Sagardoyburu ,  Simon Springer

IPC: G02F1/1335 ,  G02F1/13357 ,  G02F1/1343 ,  G04G9/12 ,  G02F1/1333

CPC classification number: G02F1/133555 ,  G02F1/1343 ,  G02F1/133374 ,  G02F1/133536 ,  G02F1/133608 ,  G04G9/12

Abstract: A method for manufacturing a reflective or transflective liquid crystal display device including a liquid crystal cell whose liquid crystal molecules are aligned in a planar or vertical manner, this liquid crystal cell being formed of a transparent front substrate located on the side of an observer, and a rear substrate, also transparent, which extends under the front substrate, parallel to and at a distance from the latter, these two front and rear substrates being joined together with a sealing frame which delimits a sealed enclosure in which a liquid crystal composition is confined, the front and rear substrates being coated on the opposite faces thereof with electrically conductive transparent electrodes and counter-electrodes, the optical properties of the liquid crystal composition being changed by applying an electric field at the crossing point between an electrode and a corresponding counter-electrode.

公开(公告)号：US20230161295A1

公开(公告)日：2023-05-25

申请号：US17940216

申请日：2022-09-08

Applicant: The Swatch Group Research and Development Ltd

Inventor： Loïc CURCHOD ,  Michel Sagardoyburu ,  Simon Springer

IPC: G04B45/00

CPC classification number: G04B45/0076 ,  G04B45/0015

Abstract: A watch case (10) comprising a middle (11) to which a crystal (12) and a back (13) are fastened so as to form an internal volume, the watch case (10) including, in the internal volume, an external part component (14) whereon a stack of thin layers (15) comprising a substrate layer (150), a solid-state phase switching layer (151) inserted between a transparent encapsulation layer (152) and a spacing layer (153) separating the phase switching layer (151) from the substrate layer (150) is deposited, the phase switching layer (151) being configured so as to have a refractive index capable of varying under exposure from light rays so as to impart to the stack of thin layers (15) at least two interferential colours.

公开(公告)号：US09645286B2

公开(公告)日：2017-05-09

申请号：US14926211

申请日：2015-10-29

Applicant: The Swatch Group Research and Development Ltd

Inventor： Michel Sagardoyburu

IPC: G02B27/02 ,  G02B1/118 ,  B29C39/02 ,  G04B19/12

CPC classification number: G02B1/118 ,  B29C39/026 ,  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.