Determining the lighting conditions surrounding a device

Details Determining the lighting conditions surrounding a device Determining the lighting conditions surrounding a device

2007-11-27

2007-11-27

Lewis, David L. (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Light detection means

C345S102000, C345S104000

Reexamination Certificate

active

10445278

ABSTRACT:
The invention relates to a method for determining the lighting conditions surrounding a device comprising a transmissive color LCD display1. In order to obtain a detailed information on the lighting conditions, it is proposed that the method comprises measuring within the device the intensity of light passing through the LCD display1from outside of the device, while no backlight is switched on. The light is color filtered by at least part of the LCD display1with a known color distribution. The invention equally relates to a device comprising means for carrying out the proposed method.

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