| 摘要 |
PROBLEM TO BE SOLVED: To provide a substrate for electrooptical device capable of reliably preventing pads from being short-circuited with each other via a guard ring formed along an outer circumference of the substrate even when connecting a wiring substrate and pads with an anisotropic conductive material, to provide an electrooptical device, and to provide an electronic apparatus. SOLUTION: The flexible printed circuit substrate 90 is connected to a pad formation region 12 of a first substrate 10 used for various kinds of electrooptical devices with an anisotropic conductive material 95. The guard ring 5 passes through a guard ring bypass region 1w of the opposite side to the edge part 1y with respect to the pad formation region 12 and is not formed in the edge region 1z. Therefore, even when a conductive particle 96 breaks through an insulation film 70 in the edge region 1z when connecting the flexible printed circuit substrate 90 to the first substrate 10, the guard ring 5 can be prevented from being short-circuited with a conductive pattern 91 of the flexible printed circuit substrate 90 via the anisotropic conductive material 95. COPYRIGHT: (C)2009,JPO&INPIT
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