Lower display sensor

A lower display sensor, disposed on a lower portion of a display comprising a pixel that generates light, a display delay layer disposed on an upper portion of the pixel, and a display polarizing layer,

• the lower display sensor comprising:
• a light sensor, comprising a light irradiation portion that irradiates an induction light used for sensing an object located outside the display, and a light receiving portion that detects a reflected light reflected by the induction light from the object;
• a first sensor polarizing layer, disposed on an upper portion of the light sensor and having a polarizing axis inclined at a first angle;
• and
• a first sensor delay layer, disposed on an upper portion of the first sensor polarizing layer and having a slow axis inclined at a first angle with respect to the polarizing axis, wherein
• the first sensor polarizing layer and the first sensor delay layer convert the induction light into an inductive sensor circularly polarized light so as to pass through the display polarizing layer, and
• the inductive sensor circularly polarized light is converted into an inductive display linearly polarized light with a same polarizing axis as the polarizing axis of the display polarizing layer through the display delay layer.