After looking up the LG E2350V at a few online shops, those which include manufacturer warranty information claim it to have a 3-year manufacturer warranty. (Though, several list the model number as E2350V-SN.) However, LG's website claims that the E2350V-SN only carries a 1-year warranty: Click here
and click the Warranty button on that page. You might want to check the website of the retailer/e-tailer from which you purchased it and see what it says. Perhaps you can hold them accountable for it's repair or replacement if they claim a longer warranty than LG does. Regardless. if purchased within the last 12-months, it's covered. If you have it, the product manual should clearly state the warranty terms and conditions.
You can also chat with LG online via their support page at http://www.lg.com/us/computer-products/monitors/LG-led-monitor-E2350V-SN.jsp
(click the top-right Support button, then click By Live Chat).