Solar-powered device comprising a solar cell arrangement and a liquid crystal display and method of making

US7460188B2 · kind B2 · utility

Assignee

• Junghans Uhren GmbH · DE

Inventors

• Hanna Brummack · Elzach, DE
• Gunter Megner · Überlingen, DE

Key dates

• Filing date: May 7, 2003
• Grant date: Dec 2, 2008
• Expiry date: Jul 3, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/50
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A solar-powered LCD device, e.g., for a clock, includes a solar cell arrangement and a liquid crystal display. The solar cell arrangement includes an at least partially transparent carrier and at least one solar cell provided with at least one at least partially transparent contact, at least one first polarizer, a first at least partially transparent carrier, a first at least partially transparent contact, a liquid crystal, a second transparent contact, a second transparent carrier, a second polarizer, and a reflector in a stacked arrangement. The carrier of the solar cell arrangement is one of the carriers of the liquid crystal display.