Electronic device including display module including sensor and method for manufacturing the display module

An electronic device comprising:

• a housing including a surface that includes a screen display area and a sensing area configured to overlap the screen display area;
• a first panel disposed on the housing, the first panel including a first surface configured to face the surface of the housing and a second surface opposite to the first surface, wherein the first panel includes a plurality of pixels configured to form the screen display area;
• a second panel disposed on the second surface of the first panel;
• an opening formed through the second panel;
• and
• a sensor disposed in the opening and coupled to the first panel, the sensor being configured to form the sensing area,
• wherein the sensor includes an ultrasonic sensor configured to sense biometric information of a user, based on ultrasonic waves passing through the sensing area.

A method for manufacturing a display module including a screen display area and a sensing area configured to overlap the screen display area, the method comprising:

• providing a display including an opening, wherein the display includes a front panel that includes a first surface including the screen display area and a second surface opposite to the first surface, and a rear panel disposed on the second surface, and the opening is formed through the rear panel to expose a first portion of the second surface;
• applying a thermosetting resin to at least part of the first portion in the opening;
• attaching a sensor of an ultrasonic type to the thermosetting resin;
• injecting a UV curable adhesive between inner walls of the opening and the sensor, when the second surface is viewed from above;
• curing the UV curable adhesive by irradiating UV light to the UV curable adhesive;
• loading the display having the sensor attached thereto into a chamber and raising pressure in the chamber to remove bubbles from the thermosetting resin;
• and
• unloading the display from the chamber and thermally curing the thermosetting resin.