Mobile World Congress (MWC) 2018 has concluded and major smartphone vendors at the event have unveiled their smartphone lineup for this year, revealing the development trends in smartphone technology and specifications. According to WitsView, a division of TrendForce, full-screen smartphones will become the trend in market this year. The pursuit of narrower bezels and notch designs has emerged, bringing about solutions of under-display fingerprint sensor and applications combining camera modules and facial recognition.