PRESSURE SENSOR AND APPARATUS FOR SENSING PRESSURE AND TOUCH SCREEN INCLUDING THE SAME

摘要

Disclosed is a film or a panel that may measure pressure while interacting with an electronic device. A pressure sensor according to the present invention includes: a light source unit to generate light; an optical waveguide to transfer, to a light receiving unit, the light that is generated by the light source unit; and the light receiving unit to receive the light that is transferred through the optical waveguide. The optical waveguide includes a pressure sensing unit to adjust the quantity of light that is transferred through the optical waveguide based on a pressure. The light receiving unit senses the pressure based on the change in the quantity of light that is generated by the light source unit and is transferred through the optical waveguide.