Liquid crystal display device
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United States of America Patent
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Feb 9, 2016
Grant Date -
Aug 14, 2014
app pub date -
Feb 12, 2014
filing date -
Aug 19, 2008
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Abstract
In a liquid crystal display (LCD) device having a thin film transistor (TFT), the TFT includes a source electrode, a drain electrode and a semiconductor layer. At least one of the source electrode and drain electrode includes a first layer including copper and a second layer forming an oxide layer and covering the first layer. The semiconductor layer has a substantially linear current-voltage relationship with said source electrode or drain electrode including said first and second layers, when a voltage is applied between the semiconductor layer and said source electrode or drain electrode.
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