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Related Flashcards
Related Topics
Cards In This Set
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What is the difference between LED and LCD and how does it work?
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Both Led and LCD deal with liquid crystal display technology the difference between the 2 is the type of light being used behind the 2 polarization filters, color filters and electordes. LCD uses fluorescent lamp while LED uses light emitting diodes Led typilicly will have more control over contrast and use less energy over LCD which is why they are becoming more popular.
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How do Plasma tv work
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– use cathode ray tube fires electrons exiting the phosphorus gas atoms.
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What fps do movies run at and what fps are games and sports starting to run at and what meathods are used to increase the fps
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60 fps and 2:3 pulldown makes it 30 fps and interlace causes 60 fps
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What else is there other than back lighting in Led
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Edge lighting which is cheaper but does not have as much consistancy.
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What is refresh rate?
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How many times a second that a display hardware updates it's buffer
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What is frame rate?
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How ofter a video source can feed an etire frame of data to the display
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What do companies now use that incorporate refresh rates. what are are called by samsung and sony and what else they incorperate other than refresh rate?
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Sam sung motion rate sony motion flow take into account refresh rate backlight and image proccessing speed.
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What is 4k or ultra HD
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4k or ultra HD- is the new tv and offer s run at 2160pand can display at least 8 million pixles compared to the standard it looks amazing has passive 3d only cons are the massive memory and bandwith required and there are not as much content available but movie , tv show and even apps like Netflix are
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Amplifer does?
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Increase the power of the signal
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Frequency response
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Measured in hertz refers to the frequency range a speaker can produce
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What is a flat frequency response
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in audio equipment the flatter the response the more accurate a speaker reproduces the sound from an input source. Everyone hearing is different so good speakers will allow the user to change the sound output by increasing or decreasing certain frequency areas.
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What is impedence what is it measured in. how does it effect the speaker.
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Measured in ohms how much electrical resistance an amplifier will encounter good to have consistency. use same speakres in a same set because the wiring around the magnet can be made of diferent material and cause it to sound . typically 8 or 16 ohms
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What is a voice coil in a speaker
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Is the electromagnet that moves up and down based on the alternating current. side is the spider
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What is sensitiviy in a speaker?
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Sensitivity is loud a speaker can preform in decibles pre wat low sensitivity is 88 while is 100 high
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What is Power handling in a speaker
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Power handling or the amount of wats that can be fed into a speaker a speaker more power means you need a powerful amplifier.
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