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HDTV
HDTV (High-Definition Television) is a new type of television that offers better resolution than a standard analog television. The different types of HDTV displays include plasma, direct-view, front screen and rear screen projection.
3,605 Questions
What does no valid disc mean in a DVD player?
2 choices:
First, you've placed a wrong formated Disc into the unit, or a CD instead of a DVD...
Second, the unit doesn't have a Disc installed, or it's just "dead" and can't read any Formated Discs...
What is the difference between PAL NTSC?
NTSC was an older analog standard. The new standard is ATSC.
HDTV's have the ability to display a broadcast resolution of 1080i/720p which can be achieved using the ATSC tuner that is built into most HDTV's. SDTV was the old standard displaying a broadcast resolution of upto 480i.
How do you choose between a plasma TV and an LCD TV?
1 answer. if u have voltage fluctuation in ur area don't use plasma as the small pixles each haveseperate connection to voltage can destory ur TV otherwise u can use plasma as its reception is better than LCD but choose plasma wich have view angle about 179 degree available in market
2 answer. lcd has much less power consumption then plasma.even if plasma has better picture it will loose brightness faster then lcd. some plasma models are more susceptible to " burn in " still images. i like lcd better.p.s I'm an electronic tech.
3 answer.
As of January, 2009, the "Better Purchase" value wise depends on size. A 42", 50", or 55" Plasma will still cost less than the same sized LCD of comparable picture quality. Plasmas under 42" are rare, and over 50" are still expensive based on the units produced.
As far as power consumption, there's actually not a huge difference when comparing apples to apples. A bright, good quality 42" LCD will use roughly the same power as a 42" plasma, but the plasma will fluctuate power levels based on the picture content. If it's a black image, it will use less power than an LCD, if it's a white image, it will use more.
"Burn-In" is somewhat of an issue for Plasma TVs, typically though, burn-in is only an issue if you plan to leave the same image on the screen for extended periods of time such as using it for a computer monitor, or an information display. TV station logos, and most new game systems have been designed to be not harmful. In addition, most new Plasmas have a featre that discreetly shifts the image to prevent burn-in.
Most new plasmas are built to perform for many years. For exaple, a Plasma rated for 60,000 hours means that after 27 years of watching TV 6 hours a day, the TV will be about half as bright as when it was new. (not dead, just half as bright) It's the same basic technology used in "Tube" televisions - Phosphors are "painted" on the surface of the glass, and ignited using electricity. Only in a much more precise, and compact manner.
The "Better Purchase" question would have to be answered by aswering key questions such as:
- What will you be watching? (Sports & action movies tend to look better on Plasma, while text & data are near perfect on an LCD)
- Sunlight? (LCDs typically deal with glare better, while plasmas perform better in direct sunlight)
- Heat? (plamas use a glass screen that won't discolor or warp over a fireplace)
- Weight (LCDs are typically lighter)
There are many widely debated pros & cons for both Plasma & LCD. And many different reasons for purchasing one over the other. The best advice for someone looking to purchase a lage "Flat Panel" is to speak to a qualified, preferably trained professional, ideally at a custom home theater store (I have found that most big box store salespeople are barely more informed than the average consumer, and tend to offer opinion, or rumor as factual information - I was once told that I needed to purchase the Extended warranty because it covered "Recharging the Plasma" which needed to be done every six months).
How do you delete channels on the sony Bravia tv?
Push menu button, go to setup, down button on remote and highlight CH setup, next down button to CH memory, select analog or digital and hit enter. Once here you can highlight skip and turn it on or off so that the channel will not show. Hope this helps
Which is a better LCD TV brand.. Samsung LCD TV or Sony LCD TV?
Sony makes the better picture, that's why they cost more.
Although Sony is often given too much credit, they do not produce their own glass for both LCD or Plasma, they buy it from LG, Samsung or Philips the big three glass manufacturers. As they say beauty is in the eye of the beholder and the most expensive is not always the best . . . trust your own eyes and don't always trust those enamored by brand names.
You're talking about lines of video resolution, or generally, the amount of picture detail.
Of course a 1080 (I or P) is going to offer greater detail, but you also need to keep in mind the original picture source and the system used by which it was recorded.
1080p is a high definition video format. 1080 refers to the number of lines that make up the complete image. The "p" stands for "progressive". A progressive format builds the complete image from line 1 to line 1080.
1080i has the same number of lines but is an interlaced format. The picture is built in two passes. The first pass has all the odd numbered lines - 1, 3, 5, 7 and so on to line1079. The next pass has the even numbered lines - 2, 4, 6 through to line 1080.
Information is delivered twice as fast with 1080p compared to 1080i. Currently, broadcasters do not use 1080p which is found only on local sources such as Bluray, games consoles and computers.
How does 1080p differ from 1080i?
1080i is the main standard for HD broadcasting. (720p is the other standard employed). 1080p is not used for broadcasting at present and is unlikely to be used for a number of years. Broadcasters are still busy moving to 1080i, so expect a delay before 1080p makes much of an appearance. The difference between them is the way the image is created. the "i" stands for interlaced and means that each fram is made up of two fields. One field shows all the odd numbered lines and the other shows all the even numbered lines. If a field is shown 60 times each second, the whole frame is shown 30 times each second. "p" stands for progressive and means that each field carries all the lines of the image. If 60 fields are shown each second, then 60 full frames are also shown each second. therefore, double the data is required for 1080p compared to 1080i. Theoretically, 1080p can produce better quality than 1080i but compression for storage can mean the difference is minimal.
What is 4K in Display technology?
There are several different standards. In general, 4K refers to a resolution of roughly 4,000 pixels wide and about 2,000 pixels high. That makes it the equivalent of four 1080p screens in height and length. Currently 4K is a catch-all term for a number of standards that are reasonably close to that resolution.
Are Blu-ray movies longer than DVD?
A 2 Disc DVD movie can fit on a single Blu-Ray Disc and be in HD which is more GB. The length of a Movie remains the same, but the Blu-ray has more room to add extras besides the movie.
Is Blu-ray Disk is optical disk?
Yes, a Blu-Ray device is an optical reader.
CD's, DVD's, and Blu-Rays are called Optical Devices because the reader looks at the disks using light. The light is a laser.
Just like a DVD, a Blu-Ray uses a laser beam to light up and read the information on the disk. This is like an old record needle running along a record groove and reading the information. However, the laser used by CD's, DVD's and Blu-Rays does not touch the disk. It just lights it up.
The difference between DVD's and Blu-Rays is the colour of laser. DVD's use a red laser light, Blu-Rays use one that is blue. Different coloured laser beams read different sizes. Writing and reading on a DVD with a red laser beam is like using a crayon, a blue beam is like a sharp pencil. The Blu-Ray is an optical device, just like a DVD, but because it uses a "finer pencil" it can put more information onto the disk.
Why do you get black bands at the top and bottom of tv when watching films?
Use the ASPECT button on the remote to make the picture fill the screen. This will not always work. The program was made in the wide screen format and not necessarily made for the aspect of your TV screen.
How much electricity goes a 50 inch plasma screen tv use?
Plasma screens are becoming more efficient as their designs are improved. Typically, a modern plasma screen will use in the region of 300W although the power drawn is dependent on the image up to a point. A bright image will draw a little more power than a black screen.
Every model is different so it's worth taking a look in the manual for each model. If the question is asked for energy conservation reasons, be aware that turning the television off whenever it is not being watched and turning the power off completely can often save more energy that choosing a marginally more efficient model.
What are the benefits of a bluray player?
Blu-ray disc (official abbreviation BD and official shortened name is Blu-ray) is an optical disc storage medium designed to supersede the DVD format. The standard physical medium is a 12 cm plastic optical disc, the same size as DVDs and CDs. Blu-ray Discs contain 25 GB per layer, with dual layer discs (50 GB) the norm for feature-length video discs and additional layers possible in the future.The name Blu-ray Disc refers to the blue laser used to read the disc, which allows information to be stored at a greater density than is possible with the longer-wavelength red laser used for DVDs.
How much space does a Blu-ray disk take?
Blu-Rays can hold up to a maximum of 50 GB of data, which is 5 times more data than a DVD can hold at a maximum
How wide was the first tv screen?
The Baird Televisor (produced starting in 1930) had a screen generally described as "postage stamp sized", and a magnifier that enlarged it twofold. The Televisor used a spinning disk to rasterize the image.
Telefunken made the FE 1 in 1932, with a screen size of 9 cm x 12 cm (about 3.5" x 4.7"), which gives it a 15 cm (5.9") diagonal.
References:
- http://www.earlytelevision.org/baird_televisor.html
- http://www.earlytelevision.org/telefunken.html
Who manufactures Philips tv's?
The company's name is NAP, or North American Philips. Well, at least that's the American version of it. Of course there's no longer any televisions made in America, and they are imported from manufacturers around the world.
About 40 watts which is much lower than the old CRT type TVs.
How does an antenna pick up tv signals?
The short answer is , metal antenna elements are tuned by length and diameter to resonate at a electro magnetic frequencies of the tv channels. The vibrating electrons vibrate each other , even over long distance. Some every day examples of this are , electric guitar , the electrons in a vibrating metal string vibrate the electrons in the electro magnet under the metal string, and this vibrating electron energy is connected to a amplifier.
A simpler example is a 'toaster' , the vibrating 'electrons/electric' flowing through the wires in the toaster make the electrons in the wires vibrate very fast and with a lot of energy and this is high rate of friction between the electrons makes heat. Friction makes Heat and light , light is vibrating electrons vibrating at a rate/frequency that you can see with your eyes The same thing in a light bulb.
The resistance of tungsten wire to the to the vibrating electrons causes more friction and this makes heat and light.
Electricity , is in fact vibrating electrons.
The different rates of vibration convey different information. Type of information are in fact , heat or light. Radio or Television or Etc,.
Where is the Vizio LCD HDTV's made?
Yes, the company Vizio is a USA company although some parts are made in other countries but development, engineering etc. are here in the USA. As a result, the profits are spent here in America
Who manufactures sceptre tv's?
The manufacturer of the Sceptre LCD panels is said to be Toshiba, OR so I was told today by a sales person at a local electronics store. Sceptre manufactures the other parts.
