Digital Light Processing

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/digital-light-processing

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. How big is Digital Light Processing?Approximately 13.7 micrometers
2. What is the technology classification?Micro-electro-mechanical systems (MEMS) based light modulation technology
3. What is the primary inventor?Larry Hornbeck
4. How do the tiny mirrors in a DLP projector work?Each mirror can tilt to point light toward the screen or away from it. They switch thousands of times per second, so the picture looks smooth and detailed.
5. Why do DLP projectors use a color wheel?The color wheel has red, green, and blue parts that spin quickly. As the wheel turns, the mirrors reflect each color in turn, and our eyes blend them into a full‑color image.

Micro-Electro-Mechanical Systems (MEMS): Tiny mechanical devices fabricated on semiconductor chips, like the DMD.
Color Sequential System: A DLP system that generates color by rapidly displaying sequential frames of red, green, and blue light.
Contrast Ratio: The ratio between the luminance of the brightest white and the darkest black, a key performance metric for displays.
Light Engine: The optical subsystem within a projector that generates and shapes the light beam to form an image.