I'm going to use one of the currently best selling ones on amazon as an example – 39LN5700 (click to see on amazon)
39 - screen size diagonally in inches
G (if present) - Google TV
L - indicates LCD technology
N - Model/Year (A - 2013 Nano LED 3D; N - 2013 Nano LED; M - 2012 Nano Led 3D; S - 2012 Edge Led; W - 2011 Edge Led 3D; V - 2011 Edge Led; K - 2011 CCFL backlight; X - 2010 Full Led 3D; E - 2010 Edge Led; D - 2010 CCFL; H - 2009 HCFL; G - 2008 CCFL; F - 2007 and 2009; C - 2005; B - 2004 and 2007)
5 - Series and Class (9 - flagship series; 8 - top series; 7 - upper series; 6 - medium series; 5 - medium series; 4 - budget series; 3 - budget Series; 2 - base set)
7 - sub series
00 - body color and extras (9 - white; 1 - bronze; 0 - black)
A 2013 LG TV guide for features of all series is found on my Model Comparison Chart.
39 - screen size diagonally in inches
G (if present) - Google TV
L - indicates LCD technology
N - Model/Year (A - 2013 Nano LED 3D; N - 2013 Nano LED; M - 2012 Nano Led 3D; S - 2012 Edge Led; W - 2011 Edge Led 3D; V - 2011 Edge Led; K - 2011 CCFL backlight; X - 2010 Full Led 3D; E - 2010 Edge Led; D - 2010 CCFL; H - 2009 HCFL; G - 2008 CCFL; F - 2007 and 2009; C - 2005; B - 2004 and 2007)
5 - Series and Class (9 - flagship series; 8 - top series; 7 - upper series; 6 - medium series; 5 - medium series; 4 - budget series; 3 - budget Series; 2 - base set)
7 - sub series
00 - body color and extras (9 - white; 1 - bronze; 0 - black)
A 2013 LG TV guide for features of all series is found on my Model Comparison Chart.