Patent ID: 7164409

Claim:
A display apparatus (DAP) comprising: a liquid crystal display (LCD) for receiving an input display signal (DS) to display an adapted display signal (DSA) being enhanced within a predetermined area (PA) of a display screen (SCR) of the liquid crystal display (LCD) in response to an enhancement control signal (ECS), a lamp driver circuit (LDC) for changing a property of the light emitted by a backlighting lamp (BLL) illuminating the liquid crystal display (LCD), under control of a light control signal (LCS), a data controller (DCO) for adapting the display signal (DS) under control of a data control signal (DCS) to obtain a substantially unchanged display on the display screen (SCR) outside the predetermined area (PA), a light sensor (LS) for measuring the property of the light to obtain a measured property of the light (ML), and an enhancement controller (EC) comprising a first input for receiving the enhancement control signal (ECS) and a second input coupled to the light sensor (LS), for adapting the data control signal (DCS) and the light control signal (LCS), both in response to the enhancement control signal (ECS), and for determining the data control signal (DCS) and/or the light control signal (LCS) in correspondence with the measured property of the light (MPL).