Q. In my house we own 3 flat screen HDTV's I bought the first two and my mother bought a very expensive third, what's your reason for not switching to the HD flat screen era of TV's?
A. Yes I do. In fact, I have two houses with a total of six televisions. All of them are CRTs, and all of them still work perfectly fine. One of them I bought this past April. The tricksters at the store I bought it at tried putting the display model right under a 52 inch 1080p Sony Bravia, but with my knowledge of televisions and my own two eyes comparing it to similarly-sized LCD HDTVs in the store, I saw that it produced a picture that was no worse than the LCDs, in fact I thought it was better. And this is why:
1. LCDs do not produce contrast anywhere near the levels of CRTs. Even LED-backlit models cannot match the black level of CRT televisions.
2. The response time on LCDs is inherently slow enough that motion blur can be observed in fast-action scenes, especially models with 60 Hertz refresh rates while watching movies. No such thing has ever existed with the CRT in its 100+ year history.
3. The viewing angles of LCD displays are relatively narrow. No matter how the manufacturers try to report them, I KNOW when I'm looking at the TV from off to the side or below and the contrast is going to zero. With my CRT television placed about 4 feet to the right of my desk, I can watch TV while working at my desk, and not see incorrect colors.
4. Speaking of colors, the CRT accurately reproduces the colors, as it is not backlit by a fluorescent light producing light of inconsistent wavelengths that cannot match up with the wavelengths of light that the liquid crystals can block.
The icing on the cake? The CRT cost me about half as much as a comparably-sized LCD would have cost me. And guess what, its screen IS flat. (In general for electronics you get what you pay for, but only when comparing TVs of the same display type.)
In addition, I don't have HD programming or a Blu-Ray player, the only gaming I ever do is with a PS2 (non-HD), and I still watch a lot of DVDs and VHS tapes. Non-HD content always looks WORSE on a HDTV of fixed-pixel (non-CRT) technology because of the scaling and de-interlacing that must take place. If I need better picture quality on cable, I just switch to the digital cable channel.
Resolution is NOT as important of a spec as many people and HDTV manufacturers make it out to be. Your eye notices contrast, color, and smoothness (including fast response time) before it notices resolution. When watching constant motion video as on TV, your eye focuses on the motion and changes, the whole picture, rather than on fine details.
Finally, I would like to clear up the misconception that CRT televisions cannot be HDTVs. There were a number of 1080i CRT HDTVs made from the late '90s until about 2 years ago, from a number of brands including Sony, Samsung, RCA, Toshiba, Philips, Panasonic, and others, as well as CRT rear-projection by even more companies. You can take a 21 inch CRT computer monitor with a resolution of 1920x1440 or higher and hook up a HDTV source to a VGA transcoder, and there you have a small 1080p HDTV. And many CRT projectors could display higher than 1080p; the BarcoReality 909 could throw a resolution of 3200x2560p (almost 4 times the resolution of 1080p).
When the time comes for a new TV, it will probably be a plasma. If SED or FED TVs are out by then, I would also consider those.
Hope this answers your question.
1. LCDs do not produce contrast anywhere near the levels of CRTs. Even LED-backlit models cannot match the black level of CRT televisions.
2. The response time on LCDs is inherently slow enough that motion blur can be observed in fast-action scenes, especially models with 60 Hertz refresh rates while watching movies. No such thing has ever existed with the CRT in its 100+ year history.
3. The viewing angles of LCD displays are relatively narrow. No matter how the manufacturers try to report them, I KNOW when I'm looking at the TV from off to the side or below and the contrast is going to zero. With my CRT television placed about 4 feet to the right of my desk, I can watch TV while working at my desk, and not see incorrect colors.
4. Speaking of colors, the CRT accurately reproduces the colors, as it is not backlit by a fluorescent light producing light of inconsistent wavelengths that cannot match up with the wavelengths of light that the liquid crystals can block.
The icing on the cake? The CRT cost me about half as much as a comparably-sized LCD would have cost me. And guess what, its screen IS flat. (In general for electronics you get what you pay for, but only when comparing TVs of the same display type.)
In addition, I don't have HD programming or a Blu-Ray player, the only gaming I ever do is with a PS2 (non-HD), and I still watch a lot of DVDs and VHS tapes. Non-HD content always looks WORSE on a HDTV of fixed-pixel (non-CRT) technology because of the scaling and de-interlacing that must take place. If I need better picture quality on cable, I just switch to the digital cable channel.
Resolution is NOT as important of a spec as many people and HDTV manufacturers make it out to be. Your eye notices contrast, color, and smoothness (including fast response time) before it notices resolution. When watching constant motion video as on TV, your eye focuses on the motion and changes, the whole picture, rather than on fine details.
Finally, I would like to clear up the misconception that CRT televisions cannot be HDTVs. There were a number of 1080i CRT HDTVs made from the late '90s until about 2 years ago, from a number of brands including Sony, Samsung, RCA, Toshiba, Philips, Panasonic, and others, as well as CRT rear-projection by even more companies. You can take a 21 inch CRT computer monitor with a resolution of 1920x1440 or higher and hook up a HDTV source to a VGA transcoder, and there you have a small 1080p HDTV. And many CRT projectors could display higher than 1080p; the BarcoReality 909 could throw a resolution of 3200x2560p (almost 4 times the resolution of 1080p).
When the time comes for a new TV, it will probably be a plasma. If SED or FED TVs are out by then, I would also consider those.
Hope this answers your question.
What kind of HDTV is better: Plasma, LCD , LED, etc.?
Q. I want to buy an 40" - 46" HDTV (1080p) for my home to replace my 10 year old 40 " CRT TV. I've seen different types out there: Plasma, LED. LCD. What's the difference and which is considered best (quality-wise). Any references to links that explain the different types of TVs on the market now. I'm just now able to afford getting into 21st century technology and would like some help.
A. Confused about what type of TV to buy? LED LCD Plasma.. How to choose?
After all, there are so many acronyms and buzzwords to wrap your head around, such as 1080p, 120/240Hz, 24p, HDMI and LED backlighting. Huh?
Along with deciding how big a screen you want (which is usually tied to the size of your budget and the dimensions of your room), the next choice should be between LCD.LCD (LED Backlit) or Plasma — and all have their merits. Here, we'll describe each of these formats, and also point out their shortcomings.
LCD
What is it?
lcd tv 120mhzSimilar to your laptop computer's monitor, flat-panel LCD televisions use a liquid crystal display to produce a sharp and bright picture; these crystals are sandwiched between two panes of polarized glass, which are stimulated by an electric current and illuminated by fluorescent tubes housed behind the glass. Some newer LCD TVs, however, use LED-backlighting instead. LEDs, or light-emitting diodes, translate to a better-looking picture (see photo).
Pros
There are a number of advantages to buying a LCD televisions. For one, with more than three-quarters of all televisions embracing this technology, there is a lot of choice when it comes to manufacturers, models and sizes (13- to 103-inches, in fact). Competition, of course, breeds more aggressive pricing, too, which is good news for the consumer.
Flat-panel LCD televisions are also very thin, light and energy efficient, and are ideal for rooms with plenty of ambient light, which, for example, comes through large windows as they tend to absorb rather than reflect light (reflected light can obscure your view of the screen).
Cons
Until recently, LCD TVs didn't handle fast motion images as well as plasma TVs, resulting in a somewhat blurred image. Newer LCD TVs, though, have added technologies such as 120Hz frame doubling (or 240Hz frame quadrupling) to smooth out motion. It's still not as good as plasma, but much better than before. Also, LCD TVs used to have problems showing dark blacks (because a light was still on behind the pixel showing black, resulting in a more greyish hue). Many LCD televisions today use local-dimming with LED-backlighting (see next section) for improved contrast ratios (whiter whites and blacker blacks) - but, keep in mind, this is not an issue associated with plasma TVs.
http://www.price-rank.com/search/lcd%20tv
LCD (LED Backlit)
What is it? Not a Different Type of TV
led lcd tv backlighting backlitIt’s tempting to think LEDs belong in a completely separate category beside LCD and plasma TVs, but in reality, an LED television is just a type of LCD TV. The proper term would really be "LED-backlit LCD TV," but that always seems to get truncated to "LED TV" in everyday conversation, perpetuating the confusion.
To understand how LEDs function in an LCD TV, think of an actual liquid-crystal panel as the plastic pegs in a Lite Brite. They hold a translucent image, but without a powerful backlight to punch through and light it up like a signboard, you’re not going to see much. On your old Lite Bright, an inefficient incandescent light did the job, but pretty unevenly. On a typical LCD TV, fluorescent lights provide the backlighting through a special plastic sheet called a light guide that distributes light from a fluorescent tube evenly over the surface of the TV. On an LED-backlit TV, fluorescent tubes are replaced with light-emitting diodes – LEDs – the same technology that probably lights up your digital watch, the buttons on your monitor, and the indicators on your stereo. They can be either situated along the edges of the TV like a fluorescent tube, or arranged directly behind the screen in a grid. But what difference does it make, and why would anyone spend so much money on it?
The Benefit of LEDs
The most obvious reason LEDs have fallen into favor in LCD TVs: they’re simply more efficient. Although fluorescent lights do a decent job converting electricity to light in the big scale of things, LEDs perform even better. Typically, manufacturers claim an efficiency improvement of up to 30 percent over fluorescent-based sets, which can add up significantly over the lifetime of a TV, especially on larger screens that use more juice to begin with.
LEDs are also much smaller than tubes, even after accounting for the number of them needed to light an entire TV. That means LED-backlit televisions can be manufactured significantly thinner than their tube cousins. For instance, most of the ultra-thin televisions that measured under an inch thick at CES used LED backlights, because they add very little depth to the profile. Though commercial variants aren’t quite as dramatically thin as these prototypes, they’re significantly skinnier than their fluorescent-backlit counterparts, making them some of the most chic and living-room-friendly HDTVs out there.
For home theater enthusiasts, LEDs only matter for one reason: image quality. Because fluorescent tubes mu
After all, there are so many acronyms and buzzwords to wrap your head around, such as 1080p, 120/240Hz, 24p, HDMI and LED backlighting. Huh?
Along with deciding how big a screen you want (which is usually tied to the size of your budget and the dimensions of your room), the next choice should be between LCD.LCD (LED Backlit) or Plasma — and all have their merits. Here, we'll describe each of these formats, and also point out their shortcomings.
LCD
What is it?
lcd tv 120mhzSimilar to your laptop computer's monitor, flat-panel LCD televisions use a liquid crystal display to produce a sharp and bright picture; these crystals are sandwiched between two panes of polarized glass, which are stimulated by an electric current and illuminated by fluorescent tubes housed behind the glass. Some newer LCD TVs, however, use LED-backlighting instead. LEDs, or light-emitting diodes, translate to a better-looking picture (see photo).
Pros
There are a number of advantages to buying a LCD televisions. For one, with more than three-quarters of all televisions embracing this technology, there is a lot of choice when it comes to manufacturers, models and sizes (13- to 103-inches, in fact). Competition, of course, breeds more aggressive pricing, too, which is good news for the consumer.
Flat-panel LCD televisions are also very thin, light and energy efficient, and are ideal for rooms with plenty of ambient light, which, for example, comes through large windows as they tend to absorb rather than reflect light (reflected light can obscure your view of the screen).
Cons
Until recently, LCD TVs didn't handle fast motion images as well as plasma TVs, resulting in a somewhat blurred image. Newer LCD TVs, though, have added technologies such as 120Hz frame doubling (or 240Hz frame quadrupling) to smooth out motion. It's still not as good as plasma, but much better than before. Also, LCD TVs used to have problems showing dark blacks (because a light was still on behind the pixel showing black, resulting in a more greyish hue). Many LCD televisions today use local-dimming with LED-backlighting (see next section) for improved contrast ratios (whiter whites and blacker blacks) - but, keep in mind, this is not an issue associated with plasma TVs.
http://www.price-rank.com/search/lcd%20tv
LCD (LED Backlit)
What is it? Not a Different Type of TV
led lcd tv backlighting backlitIt’s tempting to think LEDs belong in a completely separate category beside LCD and plasma TVs, but in reality, an LED television is just a type of LCD TV. The proper term would really be "LED-backlit LCD TV," but that always seems to get truncated to "LED TV" in everyday conversation, perpetuating the confusion.
To understand how LEDs function in an LCD TV, think of an actual liquid-crystal panel as the plastic pegs in a Lite Brite. They hold a translucent image, but without a powerful backlight to punch through and light it up like a signboard, you’re not going to see much. On your old Lite Bright, an inefficient incandescent light did the job, but pretty unevenly. On a typical LCD TV, fluorescent lights provide the backlighting through a special plastic sheet called a light guide that distributes light from a fluorescent tube evenly over the surface of the TV. On an LED-backlit TV, fluorescent tubes are replaced with light-emitting diodes – LEDs – the same technology that probably lights up your digital watch, the buttons on your monitor, and the indicators on your stereo. They can be either situated along the edges of the TV like a fluorescent tube, or arranged directly behind the screen in a grid. But what difference does it make, and why would anyone spend so much money on it?
The Benefit of LEDs
The most obvious reason LEDs have fallen into favor in LCD TVs: they’re simply more efficient. Although fluorescent lights do a decent job converting electricity to light in the big scale of things, LEDs perform even better. Typically, manufacturers claim an efficiency improvement of up to 30 percent over fluorescent-based sets, which can add up significantly over the lifetime of a TV, especially on larger screens that use more juice to begin with.
LEDs are also much smaller than tubes, even after accounting for the number of them needed to light an entire TV. That means LED-backlit televisions can be manufactured significantly thinner than their tube cousins. For instance, most of the ultra-thin televisions that measured under an inch thick at CES used LED backlights, because they add very little depth to the profile. Though commercial variants aren’t quite as dramatically thin as these prototypes, they’re significantly skinnier than their fluorescent-backlit counterparts, making them some of the most chic and living-room-friendly HDTVs out there.
For home theater enthusiasts, LEDs only matter for one reason: image quality. Because fluorescent tubes mu
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