Data interface device and method of display apparatus

A data interface device of a display apparatus, the data interface device comprising:

• a first transfer circuit encoding first clock-embedded image data corresponding to a logic high period of a data enable signal and first clock-embedded blank data corresponding to a logic low period of the data enable signal and transferring an encoded first data transfer packet to a first transfer line;
• a first reception circuit generating a first internal clock based on the encoded first data transfer packet received through the first transfer line and decoding the first clock-embedded image data based on the first internal clock;
• a second transfer circuit encoding second clock-embedded image data corresponding to the logic high period of the data enable signal and second clock-embedded blank data corresponding to the logic low period of the data enable signal and transferring an encoded second data transfer packet to a second transfer line;
• and
• a second reception circuit generating a second internal clock based on the encoded second data transfer packet received through the second transfer line and decoding the second clock-embedded image data based on the second internal clock,
• wherein a first transition pattern of the first clock-embedded blank data differs from a second transition pattern of the second clock-embedded blank data.