A display device comprising: a display screen having a display surface and a rear surface opposite the display surface , wherein the display surface has a display area , the rear surface defines a recess , and an orthographic projection of the recess on the display screen falls in the display area ; and an optical fingerprint recognition assembly received in the recess of the rear surface and comprising: a fingerprint module comprising a prism , an image sensor , and a fingerprint controller , wherein the prism , the image sensor , and the fingerprint controller are encapsulated together; a light source disposed outside the fingerprint module , wherein the light source is configured to emit lights reaching an upper surface of the prism, and further reaching the display surface above the prism , and total reflection occurs when the lights reach a fingerprint to be recognized on the display surface , and wherein lights formed via the total reflection pass through the prism and reach the image sensor ; the image sensor being configured to acquire a fingerprint image according to the lights formed via the total reflection; the fingerprint controller being configured to recognize the fingerprint image received from the image sensor ; a flexible circuit board ; and a substrate disposed on the flexible circuit board , wherein the fingerprint module is encapsulated on the substrate , and the light source is disposed on the flexible circuit board . a display screen having a display surface and a rear surface opposite the display surface , wherein the display surface has a display area , the rear surface defines a recess , and an orthographic projection of the recess on the display screen falls in the display area ; and an optical fingerprint recognition assembly received in the recess of the rear surface and comprising: a fingerprint module comprising a prism , an image sensor , and a fingerprint controller , wherein the prism , the image sensor , and the fingerprint controller are encapsulated together; a light source disposed outside the fingerprint module , wherein the light source is configured to emit lights reaching an upper surface of the prism, and further reaching the display surface above the prism , and total reflection occurs when the lights reach a fingerprint to be recognized on the display surface , and wherein lights formed via the total reflection pass through the prism and reach the image sensor ; the image sensor being configured to acquire a fingerprint image according to the lights formed via the total reflection; the fingerprint controller being configured to recognize the fingerprint image received from the image sensor ; a flexible circuit board ; and a substrate disposed on the flexible circuit board , wherein the fingerprint module is encapsulated on the substrate , and the light source is disposed on the flexible circuit board . a fingerprint module comprising a prism , an image sensor , and a fingerprint controller , wherein the prism , the image sensor , and the fingerprint controller are encapsulated together; a light source disposed outside the fingerprint module , wherein the light source is configured to emit lights reaching an upper surface of the prism, and further reaching the display surface above the prism , and total reflection occurs when the lights reach a fingerprint to be recognized on the display surface , and wherein lights formed via the total reflection pass through the prism and reach the image sensor ; the image sensor being configured to acquire a fingerprint image according to the lights formed via the total reflection; the fingerprint controller being configured to recognize the fingerprint image received from the image sensor ; a flexible circuit board ; and a substrate disposed on the flexible circuit board , wherein the fingerprint module is encapsulated on the substrate , and the light source is disposed on the flexible circuit board . <EOS>