AREA SENSOR, IMAGE INPUT DEVICE, AND ELECTROPHOTOGRAPHIC DEVICE AND THE LIKE IN WHICH SAME IS INCORPORATED

摘要

PROBLEM TO BE SOLVED: To provide an an area sensor which does not decrease in S/N and is thin and compact although a light emitting element is used not to depend upon external light, and makes it possible to constitute a flexible image input device upon occasion.

SOLUTION: The area sensor has light emitting pixels and light receiving pixels arrange din two dimensions. The light emitting pixels formed by stacking light emitting elements and thin film transistors and the light receiving elements formed by stacking photoelectric converting elements and thin film transistors are arranged in a plane. The light emitting elements, photoelectric converting elements, thin film transistors, etc., are formed of organic materials, and a substrate is made of a flexible material, so that the area sensor can be made flexible.

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