Patent · US Active

Device for regulating the backlighting of an LC display

US7902491B2 · kind B2 · utility

0Cited by

10References

14Claims

0Family size

Assignee

BSH Bosch und Siemens Hausgeräte GmbH · DE

Inventors

Lorenz Tilmann · Regensburg, DE
Gerhard Mager · Bad Homburg vor der Höhe, DE
Bernhard Siegmar · Roding, DE

Key dates

Filing date	Nov 9, 2005
Grant date	Mar 8, 2011
Priority date	—
Expiry date	Nov 2, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A device for controlling the luminosity of an illuminating device, in particular for LC-display units in household appliances, includes a sensor which is used to detect the presence of a user, and a luminosity sensor. An exchange between two different luminosity values of the illuminating device according to the presence of a user and according to the surrounding luminosity takes place in a continuous manner.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.