| 摘要 |
To provide a liquid-crystal display device that can be miniaturized while optimum brightness is ensured, as well as a portable terminal using the liquid-crystal display device. In a liquid-crystal display device, a first sensor 7 is situated on a metallic wiring layer 35; blocks light from a backlight 5; is placed in an open area which is not covered with a black matrix 21 with respect to external light; and detects incident external light. A second sensor 8 is placed at a position other than location of the metallic wiring layer, and detects light from the backlight. A control section 103 adjusts the brightness of the backlight 5 in accordance with the intensity of external light detected by the first optical sensor 7 and the brightness of the backlight detected by the second optical sensor 8.
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