Patent ID: 7542123

Claim:
A board device comprising: a first substrate; a second substrate arranged in counterposition to the first substrate; a plurality of seal materials that surround a partial area between the first substrate and the second substrate and bond the first substrate and the second substrate to each other; a height adjusting layer provided between the plurality of seal materials between the first substrate and the second substrate; and a spacer that is provided on one principal surface of the height adjusting layer and keeps the interval between the first substrate and the second substrate, wherein the height adjusting layer is provided with recess-shaped main body groove portions extending along a longitudinal direction of the seal materials; the seal material has opening portions for providing openings between the first substrate and the second substrate covered by the seal material; and recess-shaped opening groove portions radially expanding in the opening direction of the opening portions are provided on the portions of the height adjusting layer in counterposition to the opening portions.