Lamp system for vehicle

An apparatus, comprising:

• a light source;
• a power supply unit;
• a light source drive unit;
• an optical output unit comprising an image signal transmission line, the light source, and an electrical load;
• a memory for storing instructions;
• and
• a single processor, upon execution of the instructions, is configured to:
• generate integrated control signals for controlling the electrical load and the light source, the integrated control signals including image data and power control signals;
• and
• control the power supply unit to generate a pulse width modulation (PWM) signal to control a power supply based on the integrated control signal,
• wherein the power supply unit is configured to variably supply power to the electrical load and the light source drive unit based on the PWM signal, and
• wherein the PWM signal is provided to the optical output unit through the image signal transmission line.

A display apparatus, comprising:

• a power supply configured to provide power to a lamp, a fan, and an optical output device of the display apparatus;
• a control unit comprising one or more processors configured to control operations of the display apparatus,
• wherein the one or more processors are configured to:
• generate an integrated control signal including image data and power control signals;
• and
• transmit the integrated control signal to a transmission device, the transmission device transmitting the integrated control signal to a reception device of the optical output device as general purpose input/output (GPIO) signals, and wherein the reception device is configured to:
• decode the GPIO signals into virtual pulse width modulation (PWM) signals;
• and
• transmit the virtual PWM signal through unused data lines of an image interface of the display apparatus to provide the image data to an image source drive device of the optical output device and power control signals to the power supply.