A driving chip includes a main input part, a plurality of circuit cells and an auxiliary input part. The main input part includes a plurality of input terminals which receive an external signal. The circuit cells generate a driving signal in response to a signal applied from the main input part. The auxiliary input part is spaced apart from the circuit cells by a first distance that is shorter than a second distance between the main input part and the auxiliary input part. The auxiliary input part receives the external signal and applies the external signal to the circuit cells. Therefore, line resistance variation between the circuit cells of the driving chip and a power input terminal may be decreased, so that driving chip defects may be prevented.
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