Dynamic projection system suitable for automobile

A dynamic projection system suitable for an automobile, comprising

• a light source, a collimating lens, a first microlens array, an LCD projection source and a second microlens array,
• wherein the dynamic projection system further comprises a polarization grating used for separating P-polarized light and S-polarized light, a condensing lens and a wave plate array,
• wherein the wave plate array comprises a plurality of ½ wave plates arranged at intervals;
• wherein the polarization grating is arranged in front of the first microlens array and the second microlens array,
• wherein the ½ wave plates are arranged between the first microlens array and the second microlens array to play a role in converting one of the P-polarized light and the S-polarized light into the other one of the P-polarized light and the S-polarized light,
• wherein the LCD projection source and the condensing lens are sequentially arranged at the back of the second microlens array;
• and
• wherein a conversion wave plate is further arranged between the polarization grating and the first microlens array.