Display apparatus and display method

A display method, being applicable to a display apparatus, wherein the display apparatus comprises:

• a display panel;
• a display film assembly disposed on a light-incident side of the display panel and comprising:
• a first light guide plate;
• and
• an optical film disposed on one side of the first light guide plate facing the display panel;
• a privacy film assembly comprising:
• a second light guide plate;
• and
• a privacy film disposed between the first light guide plate and the second light guide plate and configured to adjust divergent lights exiting the second light guide plate into privacy lights at a preset angle;
• a light source configured to emit incident lights to be selectively irradiated to the first light guide plate or the second light guide plate, so that the display apparatus is able to switch between a normal display mode and a privacy display mode, and the method comprises:
• receiving a first instruction indicating to switch to the normal display mode, and controlling the light source to illuminate the first light guide plate according to the first instruction, so that the incident lights emitted by the light source are diffused through the first light guide plate and transmitted to the display panel through the optical film, and the display panel performs normal display based on the lights incident on the display panel;
• or
• receiving a second instruction indicating to switch to the privacy display mode, and controlling the light source to illuminate the second light guide plate according to the second instruction, so that the incident lights emitted by the light source are diffused through the second light guide plate and then incident on the privacy film, and transmitted to the display panel through the first light guide plate and the optical film in sequence, and the display panel performs privacy display based on the lights incident on the display panel.