| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a display device that can accurately calculate illuminance even when illumination fluctuates and that can appropriately control the luminous energy of a backlight. <P>SOLUTION: The display device has an array substrate 2 on which a driving circuit for display is formed, and has a predetermined display region. An optical sensor 12 measuring the illuminance of external light is mounted on the array substrate 2 as well as a filtering means (an adding circuit 75 and a circuit 76 outputting high-order bits) filtering a signal output from the optical sensor 12 and a processing circuit (an external LSI 10) processing the signal output from the optical sensor 12 are also provided. After the signal output from the optical sensor 12 is filtered by the filtering means, the signal is supplied to the processing circuit (external LSI 10). <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
