Light adjustment device

A light adjustment device comprising:

• a panel unit in which a plurality of light adjustment panels are stacked in a first direction, the light adjustment panels each including a first substrate, the first substrate including at least two terminal groups each including a plurality of terminals that are capable of being coupled to one flexible printed circuit board, and
• a plurality of flexible printed circuit boards each of which is coupled to one of the terminal groups of a corresponding one of the light adjustment panels,
• wherein a plurality of the terminal groups are arranged in a second direction intersecting the first direction when the panel unit is viewed in the first direction,
• wherein the flexible printed circuit boards do not overlap with one another when viewed in the first direction,
• wherein the first substrate includes a first side and a second side intersecting the first side, and each of the terminal groups is provided at a corresponding one of the first side and the second side,
• wherein the panel unit includes
• a first unit including a first light adjustment panel and a second light adjustment panel adjacent to each other in the first direction, and
• a second unit stacked on or above the first unit and including a third light adjustment panel and a fourth light adjustment panel adjacent to each other in the first direction,
• wherein the first side of the first substrate of each of the first light adjustment panel and the second light adjustment panel extends along the second direction, and
• wherein the second side of the first substrate of each of the third light adjustment panel and the fourth light adjustment panel extends along the second direction.

A light adjustment device comprising:

• a panel unit in which a plurality of light adjustment panels are stacked in a first direction, the light adjustment panels each including a first substrate, the first substrate including at least two terminal groups each including a plurality of terminals that are capable of being coupled to one flexible printed circuit board, and the light adjustment panels including a first light adjustment panel and a second light adjustment panel;
• and
• a plurality of flexible printed circuit boards including a first flexible printed circuit board and a second flexible printed circuit board,
• wherein the first substrate includes an upper surface and a lower surface located on an opposite side of the upper surface,
• wherein the terminals are provided on the upper surface of the first substrate,
• wherein the terminals of the first substrate of the second light adjustment panel face the lower surface of the first substrate of the first light adjustment panel,
• wherein a plurality of the terminal groups are arranged in a second direction intersecting the first direction when the panel unit is viewed in the first direction,
• wherein the first flexible printed circuit board is coupled to one of the terminal groups of the first substrate of the first light adjustment panel,
• wherein the second flexible printed circuit board is coupled to one of the terminal groups of the first substrate of the second light adjustment panel, and
• wherein the flexible printed circuit boards do not overlap with one another when the panel unit is viewed in the first direction.