Printed circuit board including overvoltage controlling element and electronic device including the same

An electronic device comprising:

• a housing;
• a display panel arranged inside the housing;
• a display driver integrated circuit electrically connected to the display panel and configured to control an operation of the display panel;
• a power regulator;
• and
• a printed circuit board coupled to a part of the display panel and configured to electrically connect the power regulator and the display driver integrated circuit,
• wherein the printed circuit board includes
• a first outer layer on which an overvoltage controlling element comprising overvoltage controlling circuitry is mounted, a second outer layer, at least one inner layer stacked between the first and second outer layers, and a conductive area,
• wherein the overvoltage controlling element includes a plurality of terminals of which a first terminal is electrically connected to a ground,
• wherein the conductive area includes a first portion arranged on the at least one inner layer and electrically connected to the power regulator, a second portion having at least a portion arranged on the first outer layer, the second portion being electrically connected to a second terminal of the overvoltage controlling element and the display driver integrated circuit, and a conductive via formed between the power regulator and the overvoltage controlling element to electrically connect the first portion and the second portion, and
• wherein the power regulator is configured to apply a first voltage to one end of the conductive area, to transfer at least a part of the first voltage to the display driver integrated circuit, and to transfer a remaining part of the first voltage to the overvoltage controlling element.