A signal processing device and a display apparatus for vehicles including the same are disclosed. The signal processing device includes a processor and a graphic processor configured to perform signal processing for a display mounted in a vehicle, wherein the processor is configured to execute a server virtual machine and a plurality of guest virtual machines on a hypervisor in the processor, and execute a workload balance server to control display off, operation mode change, or application forced termination based on workload data received from the plurality of guest virtual machines. Accordingly, the signal processing device can be utilized efficiently.

A vehicle display device includes: a display control unit configured to display an icon indicating details of content available in a vehicle by a display unit provided inside the vehicle; a passenger detection unit configured to detect a passenger of the vehicle; and a storage unit configured to store passenger information regarding the passenger of the vehicle, and the display control unit acquires the passenger information corresponding to the passenger detected by the passenger detection unit from the storage unit, and displays the icon based on the acquired passenger information and content information regarding the content.