Patent ID: 8339352

Claim:
A display driver having a rectangle shape, the display driver having a first side that is a short side of the display driver, a second side that is a long side of the display driver and that is longer than the first side, a third side that is a short side of the display driver and that is opposite to the first side, a fourth side that is a long side of the display driver and that is opposite to the second side, a first direction that is a direction from the first side toward the third side, and a second direction that is a direction from the second side toward the fourth side, the display driver comprising: first to Nth circuit blocks (N is an integer of two or more) disposed along the first direction; a first interface region disposed between the second side and the first to Nth circuit blocks in the plain view, the first interface region including a plurality of first pads; and, a second interface region disposed between the second side and the first to Nth circuit blocks in the plain view, the second interface region including a plurality of second pads, when a width of the display driver in the second direction in the plain view being W, a width of the first interface region in the second direction in the plain view being W 1 , a width of the second interface region in the second direction in the plain view being W 2 , and a maximum width of one of the first to Nth circuit blocks in the second direction in the plain view being WB, W 1 +WB+W 2 ≦W<W 1 +2×WB+W 2 being satisfied, a first circuit block of the first to Nth circuit blocks being a logic circuit block, a second circuit block of the first to Nth circuit blocks being a programmable ROM block which includes a plurality of memory cells and stores adjustment data, the adjustment data stored in the programmable ROM block being supplied to the logic circuit block, the logic circuit block being disposed adjacent to the programmable ROM block, and another circuit block other than the first to Nth circuit blocks not being provided between the second interface region and one of the logic circuit block and the programmable ROM block in the second direction.