What Do You Know About The LCD Display?

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  • 1/10 Questions

    Before LCDs, what was used?

    • CRTs
    • VHS
    • DVDs
    • USB flash disks
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About This Quiz

Who doesn't know about the LCD display nowadays? It is known as the technology used for displays on gadgets such as notebooks. It technically allows displays to be thinner than the formally used cathode ray tube. But how much do you truly know about LCDs? Take our small quiz and find out.

What Do You Know About The LCD Display? - Quiz

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  • 2. 
    What's an example of an application that uses LCD? - ProProfs

    What's an example of an application that uses LCD?

    • Lenses

    • Mirrors

    • Electrical torches

    • Computer monitors

    Correct Answer
    A. Computer monitors
    Explanation
    Computer monitors are an example of an application that uses LCD (Liquid Crystal Display) technology. LCD screens are commonly used in computer monitors due to their slim design, low power consumption, and ability to display high-quality images and videos. LCD technology works by manipulating the light passing through liquid crystal cells, which allows for the creation of pixels and the display of various colors. This makes LCD screens ideal for computer monitors, where visual clarity and color accuracy are important.

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  • 3. 
    Who is said to have discovered the liquid crystalline nature of cholesterol? - ProProfs

    Who is said to have discovered the liquid crystalline nature of cholesterol?

    • Alexander Graham Bell

    • Charles Darwin

    • Friedrich Reintzer

    • Nikola Tesla

    Correct Answer
    A. Friedrich Reintzer
    Explanation
    Friedrich Reintzer is credited with the discovery of the liquid crystalline nature of cholesterol. Reintzer was a German scientist who conducted extensive research on liquid crystals in the early 20th century. His experiments led to the identification and understanding of the unique properties of liquid crystals, including their ability to exhibit both liquid and crystalline characteristics. Through his work, Reintzer specifically identified the liquid crystalline behavior of cholesterol, which has since become an important finding in the field of materials science and has applications in various industries.

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  • 4. 
    What produces light on an LCD panel? - ProProfs

    What produces light on an LCD panel?

    • Leds

    • Connectors

    • Backlight

    • Neons

    Correct Answer
    A. Backlight
    Explanation
    The correct answer is backlight. LCD panels do not produce light on their own, so they require a backlight to illuminate the screen and make the images visible. The backlight is typically made up of LEDs (Light Emitting Diodes) that are positioned behind the LCD panel to provide uniform and bright illumination.

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  • 5. 
    What's a transistor? - ProProfs

    What's a transistor?

    • It's a semiconductor device used to amplify or switch electronic signals and electrical power.

    • It's a conductor device used to amplify or switch electronic signals and electrical power.

    • It's a simple device used to amplify or switch electronic signals and electrical power.

    • It's a semiconductor device used to amplify electronic signals.

    Correct Answer
    A. It's a semiconductor device used to amplify or switch electronic signals and electrical power.
    Explanation
    A transistor is a semiconductor device that is commonly used in electronic circuits to amplify or switch electronic signals and electrical power. It is made up of three layers of semiconductor material, and its operation is based on the control of the flow of electric current through these layers. By applying a small input signal, the transistor can amplify it to a larger output signal, making it useful in amplifiers. Additionally, transistors can also be used as switches, allowing or blocking the flow of current, which is essential in digital circuits and logic gates.

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  • 6. 
    What are liquid crystals? - ProProfs

    What are liquid crystals?

    • They are matter in a state which has properties between those of conventional liquids and those of solid crystals.

    • They are matter in a state which has properties of solid crystals.

    • They are matter in a state which has properties of conventional liquids.

    • They are matter in a state which has properties of liquid crystals.

    Correct Answer
    A. They are matter in a state which has properties between those of conventional liquids and those of solid crystals.
    Explanation
    Liquid crystals are a unique state of matter that possess properties that are intermediate between conventional liquids and solid crystals. Unlike regular liquids, they exhibit a degree of order and alignment, similar to solid crystals, but they also retain the ability to flow and change their shape like liquids. This combination of properties makes liquid crystals highly useful in various applications, such as in electronic displays and optical devices, where their ability to switch between different states of alignment can be controlled and manipulated.

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  • 7. 
    What is the advantage that comes with LCD screens? - ProProfs

    What is the advantage that comes with LCD screens?

    • They do not suffer image burn-in

    • They don't break

    • They are waterproof

    • The image is very clear

    Correct Answer
    A. They do not suffer image burn-in
    Explanation
    LCD screens do not suffer from image burn-in, unlike other types of screens such as CRT or OLED. Image burn-in occurs when a static image is displayed on a screen for a long period of time, causing a permanent ghost-like image to be visible even when the screen is showing a different image. This advantage of LCD screens ensures that the displayed images remain clear and free from any permanent damage or distortion.

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  • 8. 
    What's the other term for a pixel? - ProProfs

    What's the other term for a pixel?

    • Apel

    • Backlight

    • Photoshop

    • Omega

    Correct Answer
    A. Apel
    Explanation
    The term "pixel" refers to a single point in a digital image. The other term for a pixel is "apel".

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  • 9. 
    What are twisted nematics? - ProProfs

    What are twisted nematics?

    • They are types of displays that contain crystals that twist and untwist a varying degrees to allow light to pass through.

    • They are types of displays that contain solid crystals that twist and untwist a varying degrees to allow light to pass through.

    • They are types of displays that contain liquid crystals that twist and untwist a varying degrees to allow light to pass through.

    • They are types of displays that contain liquid crystals that twist a varying degrees to allow light to pass through.

    Correct Answer
    A. They are types of displays that contain liquid crystals that twist and untwist a varying degrees to allow light to pass through.
    Explanation
    Twisted nematics are types of displays that contain liquid crystals that twist and untwist to varying degrees, allowing light to pass through.

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  • 10. 
    How many distinct specifications do LCDs have? - ProProfs

    How many distinct specifications do LCDs have?

    • 5

    • 4

    • 6

    • 8

    Correct Answer
    A. 5
    Explanation
    LCDs have different specifications such as screen size, resolution, refresh rate, response time, and connectivity options. Each of these specifications can vary, resulting in distinct combinations. Therefore, LCDs can have multiple distinct specifications, and in this case, the correct answer is 5.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 19, 2018
    Quiz Created by
    Anouchka
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