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Archive for September, 2010

is the question on LCD LED vs. What debate? Than money and mobility are the two great champions in the debate, and both models are evident in the current line of Samsung HD LCD TV models and Samsung LED TV.

LCD (liquid crystal display) panels used in LCD, ambient light to produce a manipulated image. To clarify this issue, these dishes are not huge as you might think, but very small. InNo environment or "ambient light" LCD TV to use a backlight. The disadvantage is that these elements are not able to complete dimming the backlight for optimum contrast. In other words, if the prison camp on your TV, the boy could escape at midnight, a bit 'fuzzy around the edges. What's more, your "Midnight Black" will probably look a little purple, because the crystals do not completely block which Requires light for our heroes on the mapScreen. Samsung HD LCD TV removed this by developing a system, software and a screen "bias", which cuts light to bleed again, providing a blacker black.

LED (Light Emitting Diode's) almost a return to old school "tube" televisions. Instead of using guns, but with three colored LEDs Proton LED HDTV very small. Likewise, in practice the wind-up torch Father Day. (Or tell your children you want one, you do not knowwhat. ) Is the side up to the Samsung LED TV, is that blacks are blacker. The reason is that if a light is out, it is. There are no more bleeding from the light next to it. How to have darker, more clearly defines the image. LED TV uses four colored lights, two green, one blue and one red. With different combinations of light that generates your color spectrum. This blows the competition in the LCD monitor, providing the brightest colors. Samsung HD LCD TVendangered if they began the installation of this lighting to LED backlighting and it was worth it. The product was the color of the LCD with white LED possible.

Both suffer from motion blur, but LCD has lost the war fighting level player, especially on HD. The three most common causes are:

– Pixel move faster to respond to color.
– The speed of the film, which was shot in
– The human eye has the ability to trackSpeed

The new series of Samsung LCD Flat Panel deals with this and with a combination of software and firmware, they have managed to increase its update rate of four times. In other words, would the difference between a book and a flip-35mm home theater projector. Or for the younger generation is always the same as four times the frame rate.

The big differences between LCD and LED are the price. Why is a newer technology that tends to the more expensive LEDLCD display and a little 'easier. Samsung HD LCD TV offers an alternative that is cheaper LED has better quality than traditional LCD many competitors.

Popularity: 7% [?]

KDL32EX403 Sony is breathtaking in skills and excellent optics. While offering a basic product is sophisticated functions to be top of its category as a trend. With a 32-inch LCD TV that offers the classic black finish and well defined edges. The selling price ranges from £ TV £ 549-470.

The substance of full high definition display is cleardelivered by 1920 x 1080 resolution. This settlement brings nothing particularly remarkable clarity, see if this is a film, computer game or maybe I'm a sports event. watch movie ratings is even better with the element of True Cinema known to be able to provide 24 frames per second. This particular value of the ad is on par with most of the more expensive products, which is commercially available in those days.

The built-in sensor detects the ambient air qualitythe amount of light in the room and automatically optimizes the contrast is pleasing to see the configurations. The TV has a further 3 Bravia Engine, which improves the color and clarity of the screen to see digitally the image on the TV.

The KDL32EX403 Sony offers a quality sound system that offers high-advantage of surround sound. With built-in S-Force element that is notrequire a different audio system to create a surround effect that can be a further advantage of the product is a cost saver, because you do not need expensive equipment to buy home theater audio.

The KDL32EX403 Sony Media Center may be used, because it is perfect for Connectivity. You will not have any problems with the wires, because TV is a WiFi USB dongle wireless slot offers the ideal solution. There is also the advantage of 4HDMI TV plug-in for connecting various game consoles, or maybe the video playback. Upload your files or pictures or even videos easily with this TV, because you do not have routing devices in the immediate vicinity of the TV because of their DLNA function.

KDL32EX403 contains the Sony HD Freeview receiver, which can cost many to enjoy digital radio and TV stations for anything. ForWatch all these channels do not need a set-top box or even a membership. Easy access to all this TV antenna that is installed externally.

Internet TV is also an advantage because you can easily access the KDL32EX403 than is possible with Sony Bravia Internet Video does. In addition to displaying a variety of channels, you can also see clips from YouTube.

Review all its features and capabilities, no doubt thisTV is one of the best in its class. This product is available in many online stores available, and if you spend more time to search a bit 'more likely to have the product with a very good price to be found.

Popularity: 4% [?]

Plasma TV Or LCD TV


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Your old TV has just given it up and you need a new TV, but you are very confused on what to buy. Your question is Plasma TV or LCD TV and the sales people at the store are not giving you the information you need.

Plasma TVs were all the talk of the television industry just a few years ago but today they are being challenged by DLP and LCD TV’s as well. Plasma televisions have come down in price over the last few years and the quality has only increased. Plasma TV’s are today’s most sought after and best viewing televisions on the market. They are thin and can be either placed on a wall or fit on its on component or piece of furniture, so a plasma TV stand is a vital component. Plasma TVs can suffer from burn-in produced by static images. After extended periods, stationary images “burn in” and produce an after-image ghost which remains permanently on the screen.

Flat-panel TVs create beautifully bright, crisp images using either LCD or plasma screen technology. Many models measure 4 inches deep or less, opening up a whole new range of TV placement options. Flat panel TVs are not the only ones to lose brightness over time; every TV set does, including the traditional CRTs. Flat screen televisions make for a great gift for Christmas, birthdays or any occasion. Yet, selecting the most appropriate TV can be challenging if the consumer doesn’t know what he or she is looking for.

HDTV improves this dramatically for both. HDTV is short for high-definition television, which offers clarified, precise images with enriched colors and contrast. With superior resolution and sound, it quickly became the new standard for broadcasting.

Plasma TV screens can create a multitude of tints by varying the intensity of the light from these three sub pixels. When it?s time to display an image signal (RGB or video), a digitally controlled electric current flows through the flat screen, causing the plasma inside designated bubbles to give off ultraviolet rays. Plasma TVs have been steadily encroaching upon affordability in the last few years. Many new manufacturing plants have opened in China and Korea that produce the glass panel, which is the chief plasma display element. Plasma TVs offer large viewing areas (up to 50 inches) but are very thin. While they offer excellent picture quality, they are quite expensive and are fast becoming the popular choice for HDTV.

Brightness: LCD TVs are said to do slightly better in bright-light conditions. Black Levels: Plasma TVs generally produce very black blacks whereas an LCD TV will produce a very dark charcoal gray.

Consider buying Plasma TV for the purposes of viewing home videos like DVD or viewing HDTV channels.

Plasma TV’s also do not have as long of a life span than a LCD TV. A plasma TV has a life span of generally about 30,000 hours, while an LCD TV doubles that with about 60,000 hours.

Plasma screens are high voltage devices that create light in three colors (red, green, and blue) in varying shades at each pixel to create an image on the screen. LCD screens filter or block light in three primary colors at each pixel in order to create an image. Plasma sets also encounter some image quality problems stemming from the nature of their pixels. Because plasma pixels need an electrical discharge in order to emit light, a pixel must be lit or unlit, but has no intermediate state. Plasma televisions come in conventional PC display sizes and also in sizes up to 63 inches for home theater and high definition television.

LCD screens: Liquid is suspended between two transparent panels. Within the liquid are crystals that, when activated by voltage, re-position themselves so that they either allow the light to pass through the panel and or block the light. Liquid Crystal Displays (LCD) panels – work by trapping a liquid crystal solution between two sheets of polarized glass. When an electric current is passed through the liquid crystals, they change the polarization of the light passing through them in response to the electric voltage ? as a result of which, more or less light is able to pass through the polarized glass on the face of the display.

LCD TVs in increasing quantities, Sony is building a logistics center adjacent to the production site at ?Nitra Technology Center?. With addition of the logistics center due to start operating this autumn, Sony is positioning ?Nitra Technology Center? LCD TVs produce sharper pictures with high quality colors while plasma TVs can give more realistic colors. Both have their technical glitches, of course: plasmas can suffer from a burn-in effect while LCDs suffer from stuck pixels.

Currently, a 42-inch plasma display sells for approximately $2500, with cheaper ? and smaller ? versions available. LCD, or liquid crystal display, TVs have only recently taken off, and are currently more expensive than plasma. Currently in the plasma vs. LCD TV battle, plasma wins on the price because of their head start on producing the larger models. Currently, Plasma TVs have the advantage of offering larger screen sizes. Commonly available Plasma TV screen sizes include 32-inch, 42-inch, 50-inch and 63-inch models.

Panasonic has a series out right now that uses DLP and a new plasma lamp. It gives the quality of picture of high-end LED units but at a fraction of the cost and nearly the same lamp life. Panasonic’s professional plasma monitors have great picture quality considering their price, but the trade offs — including the lack of a tuner — might be too much for some. Samsung plasma TVs fall short of these TVs when it comes to blacks, but overall picture quality and relative value make it one of the best choices for many buyers.

Sharp does a couple smart things to enhance the black levels on its 37G4U display. First, they include a first-rate anti-glare/darkness-enhancing coating on the LCD screen to counter excessive light emissions, which tend to dull blacks on the screen. Sharp produces one of the largest available LCD displays at 45 inches, while Samsung has a 46 inch,  Sony and NEC currently produce units measuring 40″ diagonally.

LCD TVs continued their strong growth, gaining 56% to a record of 28.5 million units during the quarter. For the entire year, Display search estimated that about 79.3 million LCD TVs were shipped, translating into a 40% of the total market of 200 million TVs.

As you can see when trying to decide on a Plasma TV or LCD TV there are good and bad qualities to each. But now you have a little more knowledge about Plasma TV or LCD TV’s that you can go back to the TV store and ask the sales people better questions.

Popularity: 1% [?]

How Long Do Plasma TVs Last?


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In the not so distant past, it was not unusual to have a hard time hearing the volume of a plasma TV over the buzzing of the units cooling fans at work. These cooling fans were functioning regularly as the obsolete plasma TV could produce heat hot enough to cook eggs. It is no wonder that most of the early model plasma TV have already retired.

Many different technologies have been at work to create improvements in today’s technology. These innovations have brought the life spam of a plasma TV to be calculated at 20 to 25 years for normal viewing patterns.

Normally a plasma TV has a half-life between 30,000 to 60,000 hours, meaning that the unit will loose around fifty percent of its brightness during this time of service. For instance if a plasma TV was left on for eight hours a day the expected half life would range about 9 years. If however the plasma TV were left on for only 4 hours daily, then its half life expectancy would range near about eighteen years.

When considering the loss of brightness in TV screens the fact that a traditional TV looses approximately thirty percent of brightness after use of about 20,000 hours. This loss of light is so gradual that a viewer may not be aware of the effect other than to occasionally fine-tune the levels of brightness and contrast options to make up the difference.

When a plasma TV looses its light to dimness, various models present the option of replacing the light source, thereby renewing the unit’s .life span

Plasma TV life span extension tips.

1. Use wide screen formatting as often as possible. The use of wide screen viewing insures that all pixels have opportunity to work.

2. Brightness levels need to set as low as possible for viewing pleasure. Using the higher brightness levels strains the pixels and phosphors, which decreases the plasma TV’s life span.

3. Always, take care that the plasma TV is in a well-ventilated area. Keeping the unit cool cuts down on the energy it takes for cooling, reducing the need for internal cooling fans and it also aids the phosphors in longer working time.

4. Do not let static images sit on the units TV screen for any length of time. Seven to ten minutes is about the longest that an image should be left to sit on a display screen. Image burn in and ghosting effects will cause the TV screen to wash out. DVD’s should not be left on pause for more that 20 minutes.

5. When interior light is dim, always use a lower level of contrast. The use of lower leveled contrast or picture options will help extend the life span of a plasma TV. Normal interior lighting calls for no more than sixty percent a contrast level.

6. Remember that factory settings are always set higher for best viewing in a show room. Once at home, the setting options of contrast and brightness should be adjusted for home entertainment viewing.

7. Stay away from off brand plasma TV units or accessories that are not manufactured as well built or engineered as good brand name products. These may be cheaper, but in the long run, you get what you pay for.

8. When not in use turn your plasma TV off.

9. Keep small children away from a plasma TV.

10. Never, mount a plasma TV from the ceiling facing down.

Popularity: 1% [?]

backlit LCD HDTV


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LCD is the race to win, the dominant technology for displays are HDTV. According to DisplaySearch, in 2007, the market for LCD (liquid crystal diode) TVs estimated 27.4 billion dollars. LCD TV shipments rose more than expected 52% year over year in the second quarter of 2008 to approximately 7.5 million units (79 a, 8% of total sales of HDTV).

The LCD screen on a LCD HDTV is a filter light selectively. Is not itself emit light, but selectively filter the lightScreen on the back. Most HDTVs are either a single sheet of plastic or luminescent numerals side lighting with fluorescent lamps to provide backlighting. Both techniques are difficult to control.

Many consumers focus on the resolution of the screen when you select a high-definition (HDTV) system. HDTV is 720p, 1020i, or 1020p? However, when a group of experts, the SMPTE (Society of Motion Pictures and Television Engineers), which recently ranked in the importance of screen resolution, is fourth. TheSMPTE Rank contrast, color saturation, color temperature and grayscale before the screen resolution in importance. The Imaging Science Foundation reached a similar conclusion. backlight is the key component to improve contrast and grayscale.

It is important that a system of LCD can be used to adjust the height of the backlight, and preferably, this function automatically. This improves the image contrast. Even a reduced brightness of the backlight isReduction of energy consumption and extend lamp life, as the power used and the lamp life is directly related to the brightness of the backlight in context. A lamp with 50,000 hours of life at 6 mA, only a life of 30,000 hours, when the current is 7 milliamps, only a higher milliamp (example: Sharp Electronics LCD).

Another important factor in the choice of backlight is the consideration of "uncertainty". Blur occurs when there is rapid movement in programming such as sports. If the imageChanges rapidly, the pixels can put in reaction. Effective backlighting system engineering, this can significantly reduce the stroboscopic backlight, so the individual pixels remain lit longer than necessary. Examples of this technique are the "Apture Philips and Samsung" LED Motion Plus. "

Sidelight

With side lighting, lighting in the back of the LCD panel is found, and create on each side of the light panel. For the light uniformly, aDiffuser is located between the lights and the rear of the optical filter module. Most systems that use LCD cold cathode fluorescent light uses (CCF) lamps. This technology provides a white light. The life of the bulbs is usually between 10,000 and 20,000 hours (6-12 years at a rate of 5 hours of operation per day).

The main disadvantage is that the intensity of light can not be changed locally, and the light side can not look uniform. Some of CCF lamps containMercury. This is an ecological problem.

The main disadvantages:

The intensity of light can not be changed locally. This leads to a lower image contrast.
The light is not uniform.
Some of CCF lamps contain mercury.

conventional backlight

Most of the backlight is designed with a single sheet of electroluminescent plastic. These plates can age (although the improvements in this area have reduced this problem). panel uses electroluminescent backlight colorsphosphors to generate light. Displays with this technique, thin and light and provide uniform distribution of light.

The main disadvantages:

Limited life 3000-5000 hours in half brightness (2-3 years at a rate of 5 hours of operation per day).
The intensity of light can not be changed locally.

LED backlight

LED-backlit display uses an array of LEDs that can be controlled individually, providing excellent control. In this configuration, a largeNumber of LEDs are mounted uniformly behind the display. LED brightness improvements are more practical for backlighting. The NEC pioneered this technology with their monitors, 2180WG. Other companies like Samsung, have recently versions of this technique. This should push prices down (the Samsung model costs less than one third the price of a comparable NEC monitors).

This system offers local dimming technology and can reach dynamic contrast ratio of 1,000,000:1. Trueactual black levels (the "Holy Grail" of the LCD) can be achieved by switching off a light source pixels. This can eliminate the typical gray-black screen for many LCD HDTVs. The groups of LEDs can be controlled locally to generate more light increasing the brightness when necessary.

The problem with traditional white LEDs is that their spectrum is not ideal for photographic reproduction, because they are really blue LEDs with yellow phosphorus above. Their spectrum has two peaks, oneblue and yellow on another. White LED, which are based on a group of red, green and blue LEDs are ideal for RGB color filters of the LCD and can cause the colors more saturated. Sony "TRILUMINOS" LED-backlight system is an example of this technique.
Sometimes, these high definition televisions, a number of LEDs on the top and bottom of the screen. This enhances the brightness and color reproduction, allowing almost complete uniformity across the display.

LED Backlightare much more efficient than alternative techniques. And since the LED backlight less energy, less waste heat that air conditioning must be managed. LED backlit, offers a long life over 50,000 hours (more than 25 years of employment at a rate of 5 hours day).

Systems with LED backlight can not show well, in a typical retail environment. Typically, the screens are a bit 'reflective in order to achieve the high contrast ratio, andSubsequently, not lit showroom flatter this technology. In a typical environment less enlightened, this problem should not be so obvious.

Engineering concerns

The electrical engineering is easier with LED backlight. Cold Cathode Fluorescent Lamp (CFC) requires a high AC voltage (1500 VAC) at startup and operating voltages of 700 VAC or more. When the lamp is new, may take much less voltage to start, but usually with age, the voltage requirements To increase the problem more difficult to design. A luminous panel requires a voltage of 100 VAC @ 400 Hz

create an inverter (VAC) is for both CCF and electroluminescent panels required for operation with DC power. This is a significant effort, cost, size and weight of the system. The best inverter allows the output voltage automatically increase the lamps age, extending the useful life of the lamps.

systems with LCD> Using LED-backlit for low-voltage direct current, usually 12 or 24 VDC. This translates into a smaller, simple and reliable system more. Backlight LED systems must be well chilled or performance may suffer. The LEDs generate less heat than bulbs CCF, but the heat is very concentrated. The operation at high temperatures reduce the life of the LED and shifts their spectrum of light, while production decreased luminance.

OLED

A new technology that has his hearing inFuture OLED Organic LED (). This technology has a completely different backlight technology, we need not be. For this reason, they draw much less power. And because there is no lighting, OLEDs have a wider viewing angle compared to an LED system. An OLED display is much thinner than a LCD. The response time of OLED is faster than normal LCD screens. An average of 8-12 millisecond response time is an LCD compared to 0.01 milliseconds, normalResponse time of an OLED.

Sony has introduced a 11 "HDTV at the Consumer Electronics Show in Las Vegas. The new 11" Sony TV "as" XEL-1. It 'very thin (10.1 ") and currently sells for $ 2,500 a Samsung 31" OLED HDTV with 1080p resolution at an exhibition in Asia in November. LG, Toshiba, Matsushita (Panasonic), and others are investing hundreds of millions of dollars to develop this extremely promising technology. Toshiba expects to sell a 30-inch OLED display2009 Samsung has announced that sell big-screen OLED HDTVs in 2010.

OLED displays have been used for some time in digital cameras, cell phones and other devices with relatively small panels, because they are very energy efficient, which is very important in portable devices.

In theory, OLED displays can be produced cheaper than LCDs or plasma displays, which should not be so expensive. Remember that the first large LCD and plasma displaywere much more costly at the time of their introduction.

Summary

HDTV LCD monitor with LED backlight array is now the concept of choice, because they have better image quality and saving energy. The ability to control local power light is the key to achieving high levels of contrast.

Popularity: 19% [?]

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