Display apparatus for vehicle

A display apparatus for a vehicle, the display apparatus comprising:

• a first display and a second display sized to be located in a vehicle;
• a signal processing device including a processor configured to output each processed image signal to the first display and the second display;
• a third display sized to be located in the vehicle;
• and
• a second signal processing device including a second processor configured to output a processed image signal to a third display,
• wherein, in response to transmitting data from the signal processing device to the second signal processing device, the signal processing device is configured to change a data transmission method based on a type of data or a classified level of software or application,
• wherein the signal processing device is further configured to:
• in response to information on the software or the application not existing, designate the software or application to be transmitted as a first level,
• in response to the software or the application being primarily classified based on resources, designate the software or application to be transmitted as a second level.