Question

How does an LCD create an image?

a.

By emitting a stream of electrons.

b.

By utilizing a thin layer of liquid crystal that can twist to alter the plane of polarization of incoming light.

c.

By using plasma cells filled with noble gases.

d.

By using light-emitting diodes.

Posted under Human Computer Interaction

Answer: (b).By utilizing a thin layer of liquid crystal that can twist to alter the plane of polarization of incoming light. Explanation:An LCD creates an image by sandwiching a thin layer of liquid crystal between two glass plates. When voltage is applied, the crystal twists, altering the plane of polarization of incoming light. This process turns the activated cell black or leaves it white, creating an image.

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. How does an LCD create an image?

Add Comment

Similar Questions

Discover Related MCQs

Q. Why might using an LCD result in reduced eye strain compared to a CRT?

View solution

Q. How has the advent of LCD screens impacted the computer market?

View solution

Q. What developments have improved the performance and usability of LCD screens?

View solution

Q. What is a significant difference between random scan and raster scan displays?

View solution

Q. What is one advantage of the direct view storage tube used in analog storage oscilloscopes?

View solution

Q. Why are random scan displays used only in niche applications?

View solution

Q. What are the characteristics of a direct view storage tube display?

View solution

Q. What are some examples of environments that rely on large shared screens?

View solution

Q. What technology is used in gas plasma displays?

View solution

Q. What is the aspect ratio of HDTV (high definition television) wide screen format?

View solution

Q. What is a video wall?

View solution

Q. What technique is often used in large concerts to display artists or video images?

View solution

Q. What type of projectors are commonly used in smaller lecture theatres and small meetings?

View solution

Q. How do LCD projectors create a full color image?

View solution

Q. What is the purpose of the lens in a projector?

View solution

Q. What is one disadvantage of projected displays?

View solution

Q. What is back projection?

View solution

Q. Why are back projection setups less heavily used than front projection setups?

View solution

Q. What are situated displays?

View solution

Q. What is the purpose of situated displays?

View solution

View All MCQs on Human Computer Interaction

Suggested Topics

Are you eager to expand your knowledge beyond Human Computer Interaction? We've curated a selection of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!

Computer Graphics

Step into the visual side of computing with our Computer Graphics MCQs. Cover topics...

Computer Architecture

Unveil the science behind computer design with our Computer Architecture MCQs. Topics...

SQL Server

Master Microsoft's database server with our SQL Server MCQs. Topics cover database...

UNIX

Become proficient with the Unix operating system using our UNIX MCQs. Learn about...

Data Structures and Algorithms

Journey through the fundamentals of Data Structures and Algorithms with our extensive...

Systems Programming

Decode low-level programming with our Systems Programming MCQs. These questions delve...

C# programming

Hone your skills in the C# language with our MCQs. Understand data types, operators,...

Artificial Intelligence

Get started on the path to the future with our Artificial Intelligence MCQs. Covering...

Cyber Security

Understand the fundamentals of safeguarding digital assets with our Cyber Security...