Digital micro-mirror device (DMD) system

A digital micro-mirror device (DMD) system, comprising:

• an array unit that includes a plurality of digital micro-mirrors reflecting light;
• and
• a DMD controller that controls the digital micro-mirrors according to a predetermined image signal, and changes a duty ratio of the digital micro-mirrors according to a condition or an operation mode of components included in a vehicle or an environment around the vehicle,
• wherein the DMD controller differently controls the duty ratio of the digital micro-mirrors according to a driving mode of an adaptive front lighting system (AFLS) of the vehicle,
• wherein the driving mode of the vehicle's AFLS is at least one of a highway driving mode, a national driving mode, or a city driving mode,
• wherein the DMD controller controls the duty ratio of the digital micro-mirrors with a first duty ratio when the driving mode of the AFLS of the vehicle is a highway driving mode,
• when the driving mode of the AFLS of the vehicle is a national road driving mode, the duty ratio of the digital micro-mirrors is controlled with a second duty ratio,
• when the driving mode of the AFLS of the vehicle is a city driving mode, the duty ratio of the digital micro-mirrors is controlled with a third duty ratio, and
• the first duty ratio and the third duty ratio are greater than the second duty ratio.