Display module and using method thereof

A method for using a display module,

• wherein the display module comprises a self-luminous display panel, an optical fingerprint sensor and a point-shaped backlight source, wherein the self-luminous display panel comprises a first substrate, a second substrate and a self-luminous circuit layer, the self-luminous circuit layer is disposed between the first substrate and the second substrate, and comprises a plurality of display pixel units, each of the plurality of display pixel units comprises at least one light blocking region and at least one non-opaque region, the optical fingerprint sensor is disposed below the second substrate, and comprises a fingerprint sensing circuit layer and a third substrate, the third substrate comprises a non-opaque material, the fingerprint sensing circuit layer comprises a plurality of photosensitive pixel units, each of the plurality of photosensitive pixel units comprises a non-opaque region and a light blocking region in which a photosensitive element of the photosensitive pixel unit is disposed, the point-shaped backlight source is disposed below the optical fingerprint sensor, and light emitted from the point-shaped backlight source enters the optical fingerprint sensor with a first incident angle which is acute,
• wherein the method comprises:
• defining a display area of the self-luminous display panel which faces the optical fingerprint sensor as a first display area, and other display areas of the self-luminous display panel as a second display area;
• and when the optical fingerprint sensor performs fingerprint image acquisition, controlling the first display area to stop displaying.