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LCD refers to Liquid Crystal Display, as for AUA, not familiar with that term
Sorry, there was a problem. Please try again later.The 3 letters at the end of the model number are designation letters that are for internal use within LG and its retailers. It lets us know which retailers the unit is sold at. In an LCD television, the pixels are switched on or off electronically using liquid crystals to rotate polarized light. We hope this helps. If you are in need of any assistance, have additional questions, or would just like to see our helpful tips, check us out on Twitter @LGUSSupport or you can give us a call at 800-243-0000. ^CP
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