Video transmission device, video display device, and video transmission method

A video display device comprising:

• a first receiver, wherein
• the first receiver is configured to be connected to a communication interface comprising a first transmission channel, a second transmission channel, a third transmission channel, a clock channel, and a display data channel (DDC),
• the first receiver is configured to receive a clock signal via the clock channel, and
• the first receiver is configured to receive, via the first transmission channel, the second transmission channel, and the third transmission channel, first video data having a 4:1:1 format by using the clock signal as a reference signal,
• a second receiver configured to receive second video data from a video transmission system;
• a video processor configured to generate a third video data based on at least one of the first video data received by the first receiver and the second video data received by the second receiver, the video processor being connected to the first receiver;
• a display configured to display the third video data generated by the video processor, wherein
• 4:1:1 represents a ratio of a sampling frequency of a brightness component, to a sampling frequency of a first color component, and to a sampling frequency of a second color component,
• the first color component and the second color component of one pixel in a first horizontal line of a first frame of the first video data are allocated and received within first two cycles of the first transmission channel,
• the first color component and the second color component of one pixel in a second horizontal line of the first frame of the first video data are allocated and received within second two cycles of the first transmission channel that is next to the first two cycles of the first transmission channel,
• brightness components of four pixels in the first horizontal line are allocated and received within four cycles of the second transmission channel,
• brightness components of four pixels in the second horizontal line are allocated and received within four clock cycles of the third transmission channel.