DLPA078B February   2017  – September 2021 DLP160AP , DLP160CP , DLP2000 , DLP2010 , DLP230GP , DLP230KP , DLP230NP , DLP3010 , DLP3310 , DLP4710 , DLP471TP , DLPC3420 , DLPC3421

 

  1.   Trademarks
  2. 1 Introduction to Optical Modules
    1. 1.1 DLP Pico Chip or Digital Micromirror Device (DMD)
    2. 1.2 Illumination
    3. 1.3 llumination Optics
    4. 1.4 Projection Optics
    5. 1.5 Flash Memory Board
  3. 2 Use Case Considerations
    1. 2.1 Optical Module Specifications
  4. 3 Core Optical Module Specifications
    1. 3.1 Brightness
    2. 3.2 Size
    3. 3.3 Resolution
    4. 3.4 Illumination Power Consumption
    5. 3.5 Throw Ratio
    6. 3.6 Offset
    7. 3.7 Contrast Ratio
  5. 4 Additional Optical Module Specifications
    1. 4.1 Brightness Uniformity
    2. 4.2 Focus Uniformity
    3. 4.3 Color Management
    4. 4.4 Illumination Type
    5. 4.5 Thermal Management
    6. 4.6 Optical Zoom
    7. 4.7 Depth of Focus
    8. 4.8 Focus Method
    9. 4.9 Automatic White Point Correction
  6. 5 Features Implemented in Software
    1. 5.1 Keystone Correction
    2. 5.2 DLP Image Processing Settings
    3. 5.3 DLP IntelliBright Algorithms
  7. 6 Hardware Integration Considerations
    1. 6.1 Flash Memory
    2. 6.2 DLP Controller to DMD Interface
    3. 6.3 Flash Memory to DLP Controller Interface
  8. 7 Business Considerations
    1. 7.1 Cost
    2. 7.2 Custom Optical Modules
    3. 7.3 Minimum Order Quantity (MOQ)
    4. 7.4 Lead Times
  9. 8 Example Optical Module Specification Table
  10. 9 Get Started with Development
  11. 10Revision History

4.9 Automatic White Point Correction

Over time, LED brightness can decline and change the relative mix of red, green, and blue light in the projected image. This can result in a change in the white point. To counteract this process, some optical modules include a sensor that tracks the relative brightness of each LED. This data can be used in the DLP controller to maintain a consistent white point and color temperature over time. For more information on automatic white point correction, please refer to the Real-Time Color Management for DLPC343x application note and associated reference design.