Display apparatus

A display apparatus, comprising:

• a mirror assembly, wherein a first mirror of the mirror assembly is configured to oscillate about a first axis upon excitation by a first excitation signal of a first frequency and wherein the first or a second mirror of the mirror assembly is configured to oscillate about a second axis upon excitation by a second excitation signal of a second frequency;
• a light source configured to project a light beam onto the mirror assembly for deflection by the mirror assembly towards an image area, the light source having an input via which the light source can be controlled according to pixels of image frames to be displayed on the image area with a frame rate, each pixel of the image area being hit by the light beam with a per-pixel refresh rate;
• a gaze tracker configured to detect a user's region of interest, ROI, within the image area by tracking a user's gaze;
• and
• a controller connected to the gaze tracker and configured to modulate one of the first and second excitation signals by a first modulation signal which is dependent on the ROI detected by the gaze tracker.