LCD FULL FORM

Full Form of LCD : Liquid Crystal Display

What is the Full form of LCD?

No:1. The full form of LCD is Liquid Crystal Display.
No:2. LCD is a flat – panel display system that is primarily seen in Television and computer screens, which is also used by cell phones presently.
No:3. Such LCDs are entirely different from the previous CRT displays and it utilizes liquid crystals as its primary mode of operation rather than cathode rays.
No:4. LCD consists of millions of pixels created from crystal and organized in a rectangular pattern on the LCD panel.
No:5. For LCD, it has backlights that bring light to every pixel. Every pixel has a sub-pixel (RGB) red, green & blue which can be switched off or on.
No:6. When all subpixels are switched off, it is black while all subpixels are switched on a hundred per cent then it is white.

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Construction of LCD

No:1. LCD is a combination of two phases of the liquid and solid matter.
No:2. The solid element is the crystal, and the combination of liquid and crystal makes the image clear.
No:3. The LCD has two layers consisting of two polarized filters & electrodes.
No:4. LCD screen works by blocking the light beam, rather than releasing the light.
No:5. Active Matrix Grid & Passive Matrix Grid are two kinds of pixel grids in LCD.
No:6. Active Matrix Grid is new technology is used in smartphones with LCD screen.
No:7. Passive Matrix Grid is an older technology and is used in some older apps.

Working principles of LCD

No:1. The LCD works as per the liquid crystal colour emission principle.
No:2. LCD was identified in 1888.
No:3. LCD is an electronically modulated optical device, which includes segments filled with liquid crystals.
No:4. To display the images, LCDs used liquid crystals and polarized illumination.
No:5. There is a broad bright light when current is apply to LCD TVs that reflects toward the audience.

List of devices using LCD

LCD is use in the various device including :
No:1. Calculator
No:2. TV
No:3. Mobile device
No:4. Smartphones
No:5. Laptops
No:6. Gaming system
No:7. Computers
No:8. Digital clocks and so on.

Benefits of LCD

No:1. The LCD’s most significant benefit is that it has low cost, energy efficiency & less low energy consumption.
No:2. The LCD is smaller and thinner and is very flexible.
No:3. The LCD offers excellent contrast, brightness & resolution, so the accuracy of the image is as evident as crystal.
No:4. LCD screen radiation is slightly lesser CRT monitors
No:5. With CMOS circuit boards, LCDs can be tailored so that LCD creating is quite easy.

Limitations of LCD

No:1. LCD require external light sources to illuminate the pixels, because if the source of light is lost, then the LCD does not display any picture.
No:2. The LCD monitor is less accurate.
No:3. Visibility of the image depends on luminosity.
No:4. For LCD, the aspect ratio & resolution is specified.
No:5. LCD has an irregular intensity scale and generates rates of less than 256 distinct intensities range.
No:6. For LCD colour intensity relate to reduce black level is decrease at a lower level of intensity.
No:7. The LCD has a small viewing range and the brightness is impact when we look at the screen from an angle than the picture colour shifts in our eyes.
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