The DLP4620S-Q1 automotive DMD consists of 921,600 highly reflective, digitally switchable, micrometer-sized mirrors organized in a two-dimensional array. As shown in Figure 6-13, the micromirror array consists of 960 micromirror columns × 960 micromirror rows in a diamond pixel configuration with a 2:1 aspect ratio.

Around the perimeter of the 960 × 960 array of micromirrors is a uniform band of border micromirrors called the Pond of Micromirrors (POM). The border micromirrors are not user-addressable. The border micromirrors land in the –12° position once power has been applied to the device. There are 10 border micromirrors on each side of the 960 × 960 active array.

Due to the diamond pixel configuration, the columns of each odd row are offset by half a pixel from the columns of the even row. Each mirror is switchable between two discrete angular positions: –12° and +12°. The mirrors are illuminated from the bottom, which allows for compact and efficient system optical design.

Although the native resolution of the DLP4620S-Q1 is 960 × 960 with an aspect ratio of 2:1, when paired with the DLPC231S-Q1 controller, the DLP4620S-Q1 can be driven with different resolutions. For example, a Head-Up Display system can use a resolution of 960 × 480 or 1920 × 960 with external quincunx processing before the DLPC231S-Q1. The DLPC231S-Q1 can also support resolutions of 1220 × 610 and 1358 × 566, which are displayed as 864 × 864 and 960 × 800 subimages on the 960 × 960 DLP4620S-Q1, respectively.

For more information on supported resolutions and associated processing with DLPC231S-Q1, refer to DLPU041-DLPC230-Q1, DLPC230S-Q1 Programmer's Guide for Display Applications. The table below summarizes the resolution options.