A display operation device according to an embodiment may include: a packet generation unit for generating a row packet including
control data of a row of a frame, generating a frame packet including
control data of the frame in vertical blanking, and inserting a mode into a position where a run length of bits of the frame packet becomes a predetermined length or less; and a packet output unit for outputting, to the source driver, the frame packet and the row packet in which a pattern is inserted, the pattern including a high component and a low component with respect to pre-configured bits. A display operation apparatus according to an embodiment may include: a packet generation unit for receiving, from a timing controller, a row packet including
control data of a row of a frame and a frame packet including control data of a frame in vertical blanking; and a
packet control unit for detecting whether an error has occurred with respect to a frame packet, in which the frame packet includes a pattern in a position where a run length of bits of the frame packet becomes a predetermined length or less, and the pattern includes a high component and a low component with respect to pre-configured bits.