The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 2003
Filed:
Nov. 19, 2001
Beat Gilomen, Grenchen, CH;
ETA SA Fabriques d'Ebauches, Grenchen, CH;
Abstract
A sequential control method for a display assembly including two superposed, respectively top ( ) and bottom ( ), display devices, the top display device ( ) including at least a liquid crystal display cell ( ) and being arranged so as to be transparent in a first state to make the bottom display device ( ) visible, and so as to display a data item and to be opaque and reflective and to mask at least partially the bottom display device ( ) in a second state, control means supplying a control voltage to cause the top display device ( ) to pass from the first state to the second state and vice versa, characterised in that the display assembly is made to enter an operating state in which the top display device ( ) automatically switches into the state in which it is transparent or into the state in which it is opaque and reflective, so that the display assembly passes alternately from a mode displaying data via the top display device ( ) to a mode displaying data via the bottom display device ( ).