Please Log in or Register for more.

Liquid Crystal Display (LCD)

119 views

1 Answer

Answer :

 
✔️✔️Best answer

Liquid Crystal Display (LCD)

  • LCD stands for Liquid Crystal Display.
  • It is a flat panel electronic display device which uses light modulating properties of liquid crystal.
  • LCD are raster format display.
  • LCD is made from electronic circuit, mirror, liquid crystal layer, positive and negative electrodes, polarizing films, TFT glass, glass cover etc.
  • TFT (thin film transistor) glass consists of many TFT’s.
  • LCD consists of large number of small pixels.
  • Pixels are in between two electrodes one is positive and second is negative electrode.
  • When no voltage is applied then liquid crystals are in random form or twisted form and when voltage is applied then they come in strengthen form.
  • Each pixel is consist of 3 colour i.e. red, green and blue (RGB).
  • Many pixels form a object using different intensities of colour of RGB.
  • LCD are use for computer monitor, television, watches, mobile phone, and other display devices.
  • LCD uses polarization of light and electric field to display objects.
  • There are two types of LCD one is active pixel display and second is passive pixel display.
  • Active pixel display consists of switch at each pixel and passive pixel display do not consist of switch at each pixel.


Like 0 like

Please log in or register to answer this question.

Related Questions


Write short notes on:  1) Phosphor characteristics  2) Liquid crystal display

Show More

425 views 0 answers







LCD Display Resolution
Last Answer : When you go out shopping for a new LCD TV, one of the most important things worth checking is the resolution. What's the use of an LCD when your neighbor's 20-year-old CRT has better resolution and colors? ... 1680 1050 (or WSXGA+) 24 (widescreen): 1920 1200 (or WUXGA+) 30 (widescreen): 2560 1600

Show More

15 views 1 answer







LCD Display Modules
Last Answer : Replacing a damaged LCD monitor is no easy task. LCDs are expensive, and so are their parts or modules. Let's take a look at a notebook computer LCD, for example. If you go ... include matrix type, viewing angle, color support, brightness, contrast ratio, aspect ratio and input ports.

Show More

13 views 1 answer








Last Answer : Liquid Crystal Display:-An LCD is a low-cost, low power device capable of displaying text and images. LCD's are extremely common in embedded systems since such system often does not have video monitors ... toggles the enables bit and acts as a delay so that the command can be processed and executed.

Show More

183 views 1 answer







Is slight LCD burnin completely perminant?
Last Answer : i didn’t know lcd screens burned. . .

Show More

1 view 1 answer







Industrial LCD Displays
Last Answer : Today, while the Internet has managed to steal the attention of millions of people worldwide, many still tend to turn to the TV for some good, old-fashioned quality entertainment. LCDs are in, CRT ... Some of the best manufacturers of industrial LCDs today are Viewsonic, Sony, Dell, LG and Samsung.

Show More

6 views 1 answer







How to Clean an LCD Screen
Last Answer : How to Clean an LCD Screen Liquid crystal display screens, more known as LCD screens, is becoming more and more popular for its higher resolutions and space-saving dimensions. However, like all appliances ... touching the screen, regular cleaning of your LCD screen will keep it doing its job well.

Show More

10 views 1 answer







crystal oscillator and its applications.
Last Answer : Need: Any circuit that generates an alternating voltage is called an oscillator. To generate ac Voltage, it takes energy from the dc source. 1. In some applications voltages of low frequency are required where ... generate clock in digital systems.  It is used as sweep circuits in TV and CRO.

Show More

96 views 2 answers







Draw the circuit diagram of crystal oscillator and explain its working.
Last Answer : To excite a crystal for operation in the series-resonant mode it may be connected as a series element in a feedback path, the crystal impedance is the smallest and the amount of positive feedback is the largest. ... which is good.  The resonant frequency is given as  Fo = 1/( 2 π √LC ) 

Show More

306 views 1 answer







What resolution display are you using with your computer?
Last Answer : 1280×800 why do you ask?

Show More

1 view 1 answer







Anthurium - Crystal Anthurium, Flamingo Flower, Flamingo Plant, Tail Flower (Anthur'ium)
Last Answer : DESCRIPTION: These plants are mainly from tropical America. They are grown for their brightly colored flower spathes or their ornamental leaves. Anthurium andraeanum is a native of Columbia that has orange-red spathes ... A. scherzerianum; A. scandens; A. toscane A. veitchii; A. Xlilacina,.

Show More

9 views 1 answer







Why Crystal Is A Preferred Clock Source?
Last Answer : Answer :Because of high stability, large Q (Quality Factor) & the frequency that doesn’t drift with aging. Crystal is used as a clock source most of the times.

Show More

11 views 1 answer







How To Make Crystal Garden
Last Answer : Materials 6 tb Salt 6 tb Bluing - liquid 6 tb Water 1 tb Ammonia Food coloring Instructions Combine salt, bluing, water and ammonia. Pour over small pieces of rock or coal in a shallow GLASS ... on top, if desired. Crystals will begin to grow soon. Add water occasionally to keep crystals growing.

Show More

16 views 1 answer







How To Make A Crystal Spheres
Last Answer : MATERIALS NEEDED: STYROFOAM* Brand Foam: Ball, any size (sizes shown are 2-1/2″, 3″, and 4″) Other Materials: Micro-bead mixture, one package Silver glitter Double-sided adhesive, tape ... exposed adhesive to completely cover ball. 3. Sprinkle silver glitter over ball to fill areas between beads.

Show More

1 view 1 answer







How to Clean Crystal
Last Answer : How to Clean Crystal Everyone wants their crystal possessions to shine and gleam all the time, and for this, proper cleaning is very important. Cleaning crystal is an easy task, if you have careful hands and ... these easy tips and you're sure to have lovely crystal items to show off all the time.

Show More

4 views 1 answer







In a single crystal of an intrinsic semiconductor, the number of free carriers at the Fermi level at room temperature is: A) Half the total number of electrons in the crystal B) Zero C) Half the number of atoms in the crystal D) Half the number of free electrons in the crystal
Last Answer : In a single crystal of an intrinsic semiconductor, the number of free carriers at the Fermi level at room temperature is: Zero 

Show More

210 views 1 answer







What is a crystal oscillator?

Show More

61 views 0 answers







State gaseous and liquid insulating material.
Last Answer : i) Gaseous insulating material : 1. Air 2. Nitrogen 3. Hydrogen 4. SF6 ii) liquid insulating material: 1. Transformer oil 2. Capacitor oil 3. Cable oil 4. Pyranol 5. Savotal 6. Savol 7. Vegetable oil 8. Silicon liquids

Show More

119 views 1 answer







Give examples of different types of fuels. Also state any two advantages of liquid fuels over solid fuels.
Last Answer : Examples of different types of fuels:- 1. Indian Coal : It contain 30 to 40 % ash but sulphur content is less than 1%.. 2. Imported coal: It contents low ash about 10% but sulphur ... can be controlled to match the load requirements. 13. Rapid and efficient starting of the boilers from cold.

Show More

76 views 1 answer







Requesting Refill Recommendation for Low Lava Lamp Liquid?
Last Answer : This probably has everything you wanted to know, plus some. :) http://www.ehow.com/how_4523962_refill-liquid-lava-lamp.html

Show More

1 view 1 answer







How to Make Liquid Soap
Last Answer : Washing with liquid soap is a quick way to get rid of dirt and germs from your hands. The soap's thick base needs a little lathering to get the job done. With only a small amount, it ... as some of the procedures are, you're actually ensuring your own cleanliness, which is a good thing.

Show More

8 views 1 answer







How To Make Soap Bubble Blowing Liquid
Last Answer : Ingredients: 4 cups water 12 teaspoons glycerine 8 teaspoons liquid tincture of green soap (available from drugstore but as a substitute, grate or grind very pure toilet soap and use 8 teaspoons of the resulting powder) Instructions: Mix together gently. Let liquid stand for 24 hours before using.

Show More

6 views 1 answer







How To Make Bubble Liquid
Last Answer : Materials: 16 Scoops of water 2 Scoops of dish soap 1 Scoop of glycerine Instructions: Mix together and store tightly covered. Best when aged! If you use a one ounce scoop it works out to 16 oz of water, 2 oz of dish soap, and 1 oz of glycerine.

Show More

4 views 1 answer







How To Make Basic Liquid Gel Soap
Last Answer : 2 cups soap flakes or grated bar soap 1/2 gallon water 2 tbsp glycerin Mix ingredients together in a large pot or dutch oven. Set over low heat, stirring occasionally until the soap has dissolved. Transfer to a jar and cover tightly. For a less thick gel soap, use 1 gallon of water.

Show More

8 views 1 answer







How to restore a bathroom with liquid acrylic?
Last Answer : During operation, a bathtub, like any other piece of furniture, gradually wears out. Mostly, the enamel coating deteriorates: the gloss and shine of whiteness disappear, traces of rust, smudges, ... be suitable (excess acrylic will drain into the prepared container, directly under the drain hole).

Show More

5 views 1 answer







What is liquid wallpaper and how to apply it correctly?
Last Answer : What is liquid wallpaper and how to apply it correctly? What could be easier than wallpapering the walls? Nothing complicated, but if we are talking about liquid wallpaper - a modern finishing ... house, a modern office - this material will be an excellent solution for decorating any interior.

Show More

2 views 1 answer







Following are the different liquid propellants used in rocket engines 
Last Answer : Following are the different liquid propellants used in rocket engines 1. kerosene, Liquid oxygen and Liquid Hydrogen similar to kerosene 2. Alcohol and its derivatives (Ethyl Alcohol) 3. hydrazine and its derivatives 4. Hydrogen peroxide 5. liquid hydrogen

Show More

20 views 1 answer







The material used in liquid fuses is  (1) SF6 (3) carbon tetra chloride (2) distilled water (4) transformer oil
Last Answer : The material used in liquid fuses is  carbon tetra chloride

Show More

392 views 1 answer







Liquid flow rate is measured using (A) a pirani gauge (B) a pyrometer (C) an orifice plate (D) a bourdon tube
Last Answer : Liquid flow rate is measured using an orifice plate

Show More

112 views 1 answer







Is an 800-lumen light bulb twice as bright as a 400-lumen one?
Last Answer : A lumen is a measure of brightness. In America, incandescent bulbs used to be rated by “candlepower. ” The LED bulbs are much brighter, and are measured by “lumens.” The wattage is not as big a variable, as the brightness. There are conversions for candlepower to lumens online.

Show More

2 views 1 answer







65K Vs. AMOLED. Are they even in the same category?
Last Answer : According to Engadget it sports a TFT LCD, so it sounds like “65K” is indeed something else.

Show More

0 views 1 answer







Why does my work monitor buzz when there's a lot of black on the screen?
Last Answer : Try turning the brightness down on the monitor and see if it goes away.

Show More

1 view 1 answer







Does windows desktop basic themes really spend less memory?
Last Answer : Well, nothing “spends” memory, or “erases the load”, it does reduce it but it is ore for CPU usage than memory usage. Why don’t you just look at the usage before and after?

Show More

1 view 1 answer







How can I tactfully tell a young friend of mine that she really needs to wear longer, looser shirts?
Last Answer : Could these clothes be the only ones she can afford? If not, I’m guessing she simply doesn’t care or have any self respect. If you insist on telling her again, considering her last reaction, I’m guessing you’ll be risking the friendship.

Show More

1 view 1 answer







What would your reaction be if you discovered a relative in an exhibit that uses dead humans?
Last Answer : answer:It would depend on whether I was fond of said relative. I am wondering what led to this question?

Show More

1 view 1 answer







Displaying dates on a PC using excel 2010 to create charts and graphs?
Last Answer : Never mind. I figured it out. If anyone else needs to know this is how you do it: you must enter the date in a different format. I originally entered the date by writing September 1 etc the computer ... entered 9/1 , 9/5 etc and this resulted in a simple display of the dates I enetered only!

Show More

1 view 1 answer







Where in your environment would I look if I wanted to see your eccentricity (or "individuality," if you prefer) in concentrated form?
Last Answer : If you peeked in my bedroom at night, you would see the dog smack between hubby and I. On the other hand, if you looked at our bookshelves you would probably get the best view of our passions and oddities.

Show More

1 view 1 answer







What is the half staff etiquette for other flags displayed with a US flag?
Last Answer : The protocol for the flag is defined in U.S. Code, Title 4, Chapter 1, Section 7, which states that: (c) No other flag or pennant should be placed above or, if on the same level, to ... . International usage forbids the display of the flag of one nation above that of another nation in time of peace.

Show More

1 view 1 answer







Is there a way to trick an Apple Cinema Dislay?
Last Answer : how old is it?

Show More

1 view 1 answer







LCD stands for _________ A. Light Crystal Display B. Low Crystal Display C. Less Crystal Display D. Liquid Crystal Display
Last Answer : D. Liquid Crystal Display

Show More

1 view 1 answer







What does the liquid crystal display require for computer applications?
Last Answer : An external light source, called a backlight.

Show More

2 views 1 answer







How should I display the "Deck Crystal" I purchased so that it reflects light in my studio the same way they did in old ships?
Last Answer : ummm… what was it supposed to do?

Show More

2 views 1 answer







LCD display broken? Anyone recognize the symptoms?
Last Answer : This happened to my boyfriends laptop, exactly the same. It was the light behind it that has gone, it’s a bit fiddly to mend yourself but it’s just the light. I’m not sure the exact name for it. I’ll ask him when he gets home and get back to you, unless you know I mean.

Show More

0 views 1 answer







I took it apart due to a cracked touch glass and the display looks undamaged, but there was some liquid on it. When turned on without glass and touch pad, it glows white.
Last Answer : Need Answer

Show More

1 view 1 answer







Does this machines lcd display need an AC adapter to run or is it powered by batteries?
Last Answer : Tunturi-R30-Rowing-Machine is powered by batteries and does not need an A/C adapter.

Show More

0 views 1 answer







How does an Industrial LCD Display work?
Last Answer : There are many types of industrial lcd displays. here is a link about how touch screen ones operate... http://www.industrial-lcd.com/index.php?option=com_content&view=article&id=21:faq&catid=3:text&Itemid=20#3

Show More

0 views 1 answer







Which of the following is non-emissive display? A. LED B. LCD C. Both (A) and (B) D. None of the Above
Last Answer : B. LCD

Show More

0 views 1 answer







The seven segment arrangement for numerical display on consoles, test meters and other applications can be either ________________. A. UJT or BJT B. BCD or OCD C. JFET or IGFET D. LED or LCD
Last Answer : Answer: D

Show More

5 views 1 answer







Compare CRT and LCD display. 
Last Answer : CRT LCD CRT monitors require about 100 W for 19 display. LCD monitors require 45 W for 19 display. CRT's are heavier than LCD. LCD monitors are lighter and thinner They are ... is possible. CRT displays text is not good as LCD. LCD displays text better than CRTs.

Show More

71 views 2 answers







What is the state of liquid crystal ?
Last Answer : The state in which a substance can flow like a liquid and then acquire a three-dimensional molecular structure like a solid is called liquid crystal state of matter. In this state matter has ... they are used for digital display in various electronic devices such as calculators , thermometers, etc.

Show More

0 views 1 answer






Show More⇦ PreviousNext ⇨