DLPA068C November   2019  – May 2022 DLP160AP , DLP160CP , DLP2000 , DLP2010 , DLP230NP , DLP3010 , DLP3310 , DLP470NE , DLP470TE , DLP4710 , DLP471NE , DLP471TE , DLP471TP , DLP480RE , DLP550HE , DLP550JE , DLP650LE , DLP650NE , DLP650TE , DLP651NE , DLP660TE , DLP670RE , DLP780NE , DLP780TE , DLP781NE , DLP781TE , DLP800RE , DLP801RE , DLP801XE , DLPA1000 , DLPA2000 , DLPA2005 , DLPA3000 , DLPA3005 , DLPC2607 , DLPC3420 , DLPC3421 , DLPC3430 , DLPC3433 , DLPC3435 , DLPC3438 , DLPC3439 , DLPC4422 , DLPC6401

 

  1.   Trademarks
  2. 1Introduction
  3. 2Determining the Right Brightness for Your Product
  4. 3The Impact of Ambient Light Level
  5. 4The Impact of Screen Size
  6. 5Trade-Offs Associated With Brightness
  7. 6Other Considerations
  8. 7Summary
  9. 8Additional Resources
  10. 9Revision History

4 The Impact of Screen Size

Figure 4-1 provides suggested projection brightness (lumens) as a function of diagonal image size and image brightness (nits) levels from Table 3-1. Additionally, Figure 4-1 references the DLP chip class (categorized by the diagonal of the DLP chip micromirror array, called a digital micromirror device or DMD, measured in inches) associated with each brightness level. You can learn more about the DLP product portfolio here.

GUID-20211221-SS0I-QMCD-B1MP-FZC1WWZZ3WQ4-low.png Figure 4-1 Suggested Projection Brightness for a Combination of Image Sizes and Image Brightness Levels

These calculations(4) assume a projection surface with a reflectivity of 80%. When projecting onto a non-ideal surface, the actual lumens desired may be different than those shown above. A typical white wall has a reflectivity of 80% but colored paints can reduce this number. High gain screens are designed to increase reflection in a particular viewing direction and can be used to increase image brightness without increasing projection brightness.

4. Over time these levels have the potential to increase as new light sources and DMD technology are introduced to the market.