1, The full form of LFD is Large Format Displays. It’s used on Technology ,Display & Graphics in Worldwide

Large Format Display (LFD) are monitors designed to show full-colour moving images to a large crowd of spectators. LPF are widely used in classrooms, board meetings, hotels and making announcements in public area.

2, The full form of LFD is Login Failure Daemon. It’s used on Computing ,Security in Worldwide

Login Failure Daemon (LFD) is a service that comes with ConfigServer Security & Firewall (CSF) that watches the user activity for excessive login failures which are commonly seen during brute force attacks. CSF is a free and advanced firewall security suite for most Linux distributions.

3, The full form of LFD is Laboratory for Fluorescence Dynamics. It’s used on Academic & Science ,Research & Development in United States

Laboratory for Fluorescence Dynamics (LFD) is a national research resource center dedicated to development of new fluorescence technologies for biology and medicine and service, supported by the National Center for Research Resources (NCRR) and the National Institute of General Medical Sciences (NIGMS) divisions of the National Institutes of Health (NIH) and the University of California, Irvine (UCI).