LG Panel# LM270WQ
Look above step 6
http://www.ifixit.com/Teardown/Apple-Thunderbolt-Display-Teardown/6525/1
Yamakasi LG Panel#
http://www.overclock.net/t/1225919/yamakasi-catleap-monitor-club/910#post_16740523
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Yes, nice links. Now please look at the stickers carefully. That Yamakasi one clearly states "For evaluation use only. No guarantee for service after evaluation". No wonder these monitors are so cheap! They are using some sort of pre-production prototype panels, never meant to be used in an actual consumer product. Probably bought for pennies and being sold by enterprising Koreans to "stupid Americans". Good business!