Patent ID: 8391020

Claim:
An electro-optical device comprising: an electro-optical panel including: a first terminal portion having a first group of terminals, the first group of terminals including: a first terminal; and a second terminal separated from the first terminal; and a second terminal portion arranged adjacent to the first terminal portion and having a second group of terminals, the having second group of terminals including: a third terminal; and a fourth terminal separated from the third terminal, the first terminal and the fourth terminal being electrically connected through a first connection wiring provided on the electro-optical panel, the second terminal and the third terminal being electrically connected through a second connection wiring provided on the electro-optical panel; a first circuit substrate including: a first connection terminal portion having a first group of connection terminals to be electrically connected to the first terminal portion; a first external terminal connected to the first terminal through the first connection terminal portion; and a second external terminal connected to the second terminal through the first connection terminal portion; and a second circuit substrate including: a second connection terminal portion having a second group of connection terminals to be electrically connected to the second terminal portion; a third external terminal electrically connected to the third terminal through the second connection terminal portion; and a fourth external terminal electrically connected to the fourth terminal through the second connection terminal portion.