A liquid crystal display apparatus includes a liquid crystal display panel having
preset display characteristics, such as image brightness and contrast. A luminescent
unit is optically connected with the display panel and provides light to the display
panel in order to form an image on the display panel. The luminescent unit includes
a light collector which collects ambient light and a light source, for generating
light when the amount of ambient light is insufficient to generate a clear image.
A control circuit is electrically connected to the display panel and automatically
varies the preset display characteristics in accordance with the amount of ambient
light collected by the light collector.
