Patent ID: 7403227
Filing Date: 2008-07-22
Classification: H04N

Abstract:
1. A digital camera, comprising: an image processing system for capturing, processing and storing images; a liquid crystal display unit for displaying images; a control algorithm for measuring ambient light reflecting from an object in proximity to said liquid crystal display unit; and another control algorithm responsive to said control algorithm for adjusting a back light level of said liquid crystal display unit to a determined ambient light level for facilitating viewing of images displayed on said liquid crystal display; a brightness algorithm for determining when said back light level is at a maximum level; and a contrast algorithm responsive to said brightness algorithm for automatically adjusting a contrast level of said liquid crystal display to a predetermined level when said back light level is at said maximum level to further facilitate viewing of image and textual information displayed on said liquid crystal display; wherein said brightness algorithm determines a default brightness midway between a maximum brightness level and a minimum brightness level; and wherein said contrast algorithm adjusts said contrast level to a default contrast level corresponding to said default brightness level whenever said liquid crystal display unit is displaying camera status information and not an object image.