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US 6,639,875 B2Granted
Time piece with changable color face
OwnerAlfred E. Hallinventor
Life of this patent
Estimating the term…
Abstract
A timepiece that has an LCD face that changes color when the time changes between the A.M. and the P.M. to provide a pleasing esthetic appearance to the user. Further, the timepiece may have a manual control such as a button that may be depressed to cause the LCD face to change to any one of several colors as desired by the user.
Claims6
A time piece comprising:
- a liquid crystal background display (LCD) having contiguous portions that change color when a voltage value applied thereto is changed;
- a power supply coupled to said background display for activating said liquid crystal;
- a settable clock circuit coupled to said LCD background display for causing time related indicia to be displayed thereon;
- and
- an electronic circuit coupled to said clock circuit and to said power supply to change the voltage value applied to at least a selected one of said contiguous portions of said liquid crystal background display for automatically changing the color of any selected ones of said contiguous portions of said liquid crystal background display only when said clock circuit indicates a change of time between A.M. hours and P.M. hours.
2 more elements
A timepiece comprising:
- a liquid crystal background display (LCD) having contiguous portions that change color when a voltage value applied thereto is changed;
- a power supply coupled to said liquid crystal background display for activating said liquid crystal;
- a settable clock coupled to said LCD background display for causing time related indicia to be displayed thereon;
- and
- an electronic circuit coupled to said power supply and to said clock for automatically causing the power supply to change the voltage value applied to any selected ones of said contiguous portions of said liquid crystal background display only when said clock indicates a change in time between A.M. hours and P.M. hours thereby providing a first color of said any selected display portion only when said time is in the A.M. hours and a second color of said any selected display portion only when said time is in the P.M. hours.
2 more elements
A method of presenting time related indicia on an LCD timepiece comprising the steps of:
- providing the timepiece with a liquid crystal display having contiguous portions that are changeable in color when a voltage applied thereto is changed in value and that has time related indicia associated therewith;
- providing a clock circuit for causing said time related indicia to indicate time;
- and
- causing said clock circuit to automatically change the voltage value applied to any selected ones of said contiguous portions of said liquid crystal display of said timepiece only when there is a change in time between A.M. hours and P.M. hours thereby causing said any selected liquid crystal display portion to have one color for the A.M. hours and a different color for the P.M. hours.
1 more element
Dependencies are inferred from the claim text.