| 摘要 |
A display monitor incorporates a photo sensor (10) arranged to detect the brightness of ambient light conditions about the monitor. The response of the sensor is output to a control device (12) which converts the photo sensor output to a brightness control signal. The brightness control signal is supplied to the CRT display circuit (18) to adjust the display brightness in accordance with surrounding ambient light conditions. The sensor may be a photoconductive or photovoltaic element. The display may also include a switch to control brightness via touch control and a digital display. |
