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LCD TV purchase the nine most important indicator - LCD - HC Network Appliance Industry
Present, many consumers are on a keen interest in LCD TVs, and has stimulated the traditional Spring Festival, the supermarkets continued promotion, look high above the LCD TV from the past, ordinary people have easy access to a lot. LCD TV, after all, but the price is still high, and its technical parameters for the index is not familiar to ordinary consumers. Here we look at LCD TV purchase in the nine most important indicators.
screen size LCD TV now more suitable for use in the bedroom or study, because the LCD panel manufacturing process by the impact of the cost of large-size LCD panels will increase dramatically, and now the mainstream LCD TV sizes 26 to 37 inches. Leading Japanese LCD manufacturer Sharp launched in October 2004 after a 65-inch LCD TV, LCD TV size to make great strides to catch also the plasma and rear projection TVs.
Diagonal screen size usually refers to the length of the screen, in units of inches. And TV as a large LCD TV viewing experience better and more conducive to long-distance viewing, or watch the spacious environment. General bedroom watching 26 & jealous capsule trench bridal veil properly obstinate Huan Yong Shu?
Screen ratio We usually put the screen ratio of width to height ratio as the screen. The current screen LCD TV with 4:3 and 16:9 ratio generally two.
20 century 50's, just the birth of the television industry is facing in what proportion of the screen as the TV standard. To facilitate the movies onto the TV screen, the U.S. National Television Standards Committee (NTSC) standard eventually adopted the Institute of proportion as a standard TV, which is the origin of the ratio of 4:3 TV screen. This ratio has to this day is still the dominant television standard.
Because this tradition, now we have received is that the proportion of television programs. But the film is generally wide-screen images, wide screen movies will be converted to 4:3 ratio display will result in picture quality, shape or content of losses, in order better to watch movies on TV shows, 16:9 TV screen ratio appeared, and the future high-definition television to 16:9 as the main criteria, so now most LCD TVs have used this screen ratio.
Be noted that, 15 & others? 0 & jealous capsule trench bridal veil with a command? 6:9 specifications, only the 4:3 standard, we should pay attention at the time purchase.
image resolution LCD TV's resolution is fixed, please remember this! LCD computer can not do, you can adjust the resolution. Fixed-resolution LCD TV is also its best resolution, resolution can easily be compatible with HDTV. The LCD screen is not the best resolution of any video signal, LCD TVs have to display the image resolution conversion after conversion.
For LCD TV, the resolution is an important parameter. Traditional CRT TV the resolution supported by more flexible, while LCD TVs are fixed pixel pitch, so support for CRT TV display mode not so much. LCD TV's best resolution, also known as maximum resolution, the resolution, the LCD TV to show the best image.
Showed lower resolution LCD TV display mode, there are two ways to display. The first show for the center: for example, XGA1024 × 768 screen display SVGA800 × 600 screen, only the middle of the screen 800 × 600 pixels is shown by the other has not been shown by the pixels remain dark, at present the method less use. The other is the extended display: below the best resolution in the display screen, each pixel by interpolation to expand to the neighboring pixel display, so the entire screen is filled, but this will reduce the original clarity and color.
There are now LCD TV 800 × 600,1280 × 768 and 1366 × 768 resolution of several common.
Brightness Screen brightness is the brightest, the unit is cd/m2, or nits. Increase the brightness of the current in two ways: First, improve the LCD panel's light through rate; the other is to increase the brightness of the backlight source.
Brightness is too low is not conducive to clear the video screen to show, for some dark scenes even more helpless. In addition, the screen's brightness uniformity is also very important, but in the LCD TV product specifications usually do not do in labeling. Uniform brightness or not, and the backlight source and the mirror is closely related to the number and configuration, better quality TV, the screen brightness uniformity, no obvious bright area. This is, in the screen switches to a black screen state, the more likely to capture the situation of uniform brightness.
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Has anyone else had problems with new LCD televisions that just switch themselves off? We have two that do.?
We bought a Grundig 26 inch with built in Freeview and a Wharfedale and they both will switch themselves off after about 5 hours use. They have been looked at by a TV repair man under warranty but he can find nothing wrong so the supplier refuses to do anything about it.
Two different manufacturers and a 5 hour shutdown time indicates a problem with the TV's environment....
So....Are BOTH TVs in the same room? Unlikely....
Both TV's at the same room temperature? Yes....
Both TV's have the same STYLE of lamps in the room? It's possible. (Flourescent lamps can turn off TV sets)
Both TV's have the same electrical service? Yes...
And it does depend on what TYPE of TV both are too....
LCD - DLP - Plasma TVs have Thermal sensors on them and they can open up until they cool down....if that is what is occurring, then you cannot turn on your TV set for anywhere from 5 to 30 minutes....Run this test to see if it is temperature related. If it turns back on and runs fine, it's not a temperature problem...
