Laser projection apparatus and image display method therefor

An image display method of a laser projection apparatus, wherein the laser projection apparatus includes:

• a main control chip;
• a display driving assembly connected to the main control chip, a laser driving assembly, a phase light modulation assembly and a first light modulation device;
• a laser source assembly configured to emit laser beams of a plurality of primary colors;
• the laser driving assembly connected to the laser source assembly;
• a video processing assembly connected to the main control chip and the phase light modulation assembly;
• the phase light modulation assembly configured to perform phase modulation on the laser beams of the plurality of primary colors to provide first modulated beams;
• and
• the first light modulation device configured to modulate the first modulated beams;
• the method comprises:
• obtaining, by the display driving assembly, a video signal, and sending a synchronization signal to the laser driving assembly and the phase light modulation assembly and sending a first driving signal to the first light modulation device according to the video signal;
• determining, by the laser driving assembly, a second driving signal according to the synchronization signal, and driving the laser source assembly to be turned on according to the second driving signal, so as to emit the laser beams of the plurality of primary colors to the phase light modulation assembly;
• obtaining, by the video processing assembly, luminance compensation parameters, and sending a phase video signal to the phase light modulation assembly according to the luminance compensation parameters and the video signal;
• obtaining, by the phase light modulation assembly, a bias voltage according to the synchronization signal, and performing phase modulation according to the phase video signal and the bias voltage, so as to output the first modulated beams to the first light modulation device;
• and
• modulating, by the first light modulation device, the first modulated beams to display an image.