The DLP390TP digital micromirror device (DMD) is a 0.39" diagonal spatial light modulator that consists of an array of highly reflective aluminum micromirrors. The DMD is an electrical input, optical output micro-optical-electrical-mechanical system (MOEMS). The fast switching speed of the DMD micromirrors, combined with advanced DLP image processing algorithms, enables each micromirror to display four distinct pixels on the screen during every frame, resulting in a full 3840 × 2160 pixel image being displayed. The electrical interface is low-voltage differential signaling (LVDS). The DMD consists of a two-dimensional array of 1-bit CMOS memory cells. The array is organized in a grid of M memory cell columns by N memory cell rows. Refer to the Section 6.2. The deflection of the micromirrors (positive or negative) is individually controlled by changing the address voltage of the underlying CMOS addressing circuitry and micromirror reset signals (MBRST).

The DLP 0.39" 4K UHD chipset is comprised of the DLP390TP DMD, DLPC8445V display controller, and the DLPA3085 / DLPA3082 PMIC and the LED driver. For reliable operation, the DLP390TP DMD must always be used with the DLP display controller and the PMIC specified in the chipset.