Area sensor, and liquid-crystal display device equipped with an area sensor

An area sensor which detects color information and an input position of visible light by sensing an input image of the visible light on a detection target surface,

• said area sensor comprising:
• at least one first sensor which includes a first light sensor element configured to sense an intensity of light of a first combination of two primary colors from among red, blue, and green;
• at least one second sensor which includes a second light sensor element configured to sense an intensity of light of a second combination of two primary colors from among red, blue, and green, the two primary colors being different from the two primary colors constituting the first combination;
• a position detecting section which detects color information and an input position of visible light by causing the at least one first sensor and the at least one second sensor to sense respective input images of the visible light on a detection target surface;
• and
• a color discriminating section configured to compare (i) a first positional information image obtained from the at least one first sensor and (ii) a second positional information image obtained from the at least one second sensor and discriminates, in accordance with a result of the comparison, color information of visible light which enters a detection target surface.

An area sensor which detects color information and an input position of visible light by sensing an input image of the visible light on a detection target surface,

• said area sensor comprising:
• at least one first sensor which includes a first light sensor element configured to sense an intensity of light of a first combination of two primary colors from among red, blue, and green;
• at least one second sensor which includes a second light sensor element configured to sense an intensity of light of a second combination of two primary colors from among red, blue, and green, the two primary colors being different from the two primary colors constituting the first combination;
• and
• a position detecting section which detects color information and an input position of visible light by causing the at least one first sensor and the at least one second sensor to sense respective input images of the visible light on a detection target surface, wherein
• the at least one first sensor and the at least one second sensor are provided vertically and horizontally in a matrix pattern;
• and
• the at least one first sensor and the at least one second sensor are provided alternately in a checkered pattern.