To provide an electronic circuit, an element substrate, an electronic device, an electro-optical device, and an electronic apparatus, which make it possible to perform a precise controlling operation even if manufacturing variations occur, a circuit formation area is an annular formation area of a pixel...http://www.google.com.au/patents/US7286122?utm_source=gb-gplus-sharePatent US7286122 - Electronic device, element substrate, electro-optical device, method of producing the electro-optical device, and electronic apparatus
