System and electronics

A typical laser TV projection system is comprised of four main components:

Front end processor
Formatter board
DMD board
DLP optical module

Figure 3 Typical laser TV system diagram.

Figure 4 Typical DLP electronics system block diagram.

Front end processor –consists of an application processor that provides customized functionality such as:

Wi-Fi and Bluetooth
HDMI
IR remote control
Audio control
Fan control
Motor control for autofocus

Figure 5 Simplified optical module diagram.

Formatter board – The Formatter board contains the DLP controller and other electronics required to format the data to be displayed on the DMD.
DMDboard –The DMD board houses the DMD chip, the power supply circuitry for the DMD, and communication interfaces between the DLP controller and the DMD.
DLP optical module – The DLP chip, along with its associated laser-illumination sources, optical elements, and necessary mechanical components are combined into a compact and rugged assembly known as an optical module or light engine (see Figure 5). The optical module is the core display component of the system. Optical modules can be of various sizes depending on the application and requirements. In general, the higher the brightness, the larger the optical module due to larger illumination sources, optics, DMD, and thermal management in the form of heat sinks and fans.

DLP optical modules of various designs, sizes, capabilities,and performance are available from a number of optical module manufacturers (OMMs) who are part of the DLP ecosystem. The availability of existing optical modules accelerates the product development cycle of an end equipment producer because an appropriate DLP optical module can be utilized or adapted for use in the end product without requiring in-house expertise or resources. DLP design houses and some OMMs also have the ability to design and build a custom optical module for applications that require it.