Patent ID: 7812836
Filing Date: 2010-10-12
Classification: G09G,H04N

Abstract:
1. A display apparatus comprising: a power supplying part; a Transition Minimized Differential Signaling (TMDS) receiving part which decodes a TMDS signal input from an external signal source; a controller which controls the power supplying part to supply driving power to the TMDS receiving part when a TMDS clock signal of the TMDS signal is received; a clock signal detecting part which detects whether a clock signal is input and outputs a detection signal related to the clock signal, the detection signal output to the controller; and a switching part which controls the clock signal which is input to the clock signal detecting part, wherein the controller determines whether the clock signal is the TMDS clock signal based on the detection signal, and in response to the controller determining that the clock signal is the TMDS clock signal, the controller controls the power supplying part to supply the driving power to the TMDS receiving part, and wherein the TMDS receiving part, in response to the supplied driving power, outputs a signal to the controller, and if the controller determines that the output signal is a synchronization signal from the TMDS receiving part, the controller switches off the switching part.