How to choose LCD TV
Author:Ms. Yao Time:2021-08-05 15:44 Browse(372)
Video quality
Video and audio quality.
TV is used to watch.
therefore, video and audio effect is what we most like when we choose TV. The quality of video and audio mainly depends on the following components:

How to choose LCD TV

.
screen.
first, look at the screen.
the screen of LCD TV can account for 60-70% of the total cost, Its cost is directly related to the cost of LCD TV.
at present, the seventh generation LCD panel production line of upstream suppliers has been established.
a leap has been made in both cost and performance. Consumers can give priority to TV products with new panels when purchasing.
Sony, which is the first to establish the seventh generation LCD panel production line The s-lcd factory of Samsung joint venture is an example.
its production line has been able to produce 60000 pieces of substrates per month, and each substrate can cut 8 pieces of 40 inch or 6 pieces of 42 inch LCD screens, that is to say, it can support the monthly production of 480000 sets of 40 inch LCD TVs, greatly reducing the screen cost, and the resolution of the new screen is as high as 1366 × In addition,
the physical resolution of the screen is an important indicator to measure whether a TV reaches the high-definition level, and the physical resolution of the high-definition TV should reach at least 1280 × In August 2005, CCTV required dozens of domestic and foreign TV manufacturers to send their flat-panel TV products to the national authoritative testing agency, digital TV product quality testing laboratory for HD testing.
in the test results officially released in September, LCD TV basically passed, but most plasma TV failed, So when you buy LCD TV, you don't have to worry about the physical resolution now.
when you buy LCD TV, you don't have to worry about the physical resolution
.
backlight.
different from plasma screen.
the LCD screen itself does not emit light, and the light we see comes from the backlight system behind the screen.
as we all know.
color is not the strength of LCD TV, because the color range of the cold cathode backlight system currently used in LCD TV is only 75% of that of CRT TV, Therefore, the new technology of backlight system is worthy of attention when purchasing. For example, a wide gamut cold cathode backlight system newly developed by Sony and exclusively applied in its V Series LCD TV has increased the color range of the new backlight by 30%, The color performance of a LCD TV is almost the same as that of CRT TV.
.
.
video / audio processing chip.
the image performance of a LCD TV depends not only on the screen, but also on the internal integrated circuit video / audio processing chip, which is between the signal receiving end and the display end, and is responsible for lossless processing and signal optimization, In particular, the processing of high-definition signals can test the strength of manufacturers. Although these components do not account for a large proportion of the cost of the whole machine, they need to have deep technical accumulation and manufacturing knowledge in audio-visual field, Therefore, chips of well-known brands can give us more confidence.
.
.
life span.
this is the most important issue we pay attention to except for audio-visual effects.
at present, the nominal life span of flat-panel TVs is about 60000 hours, but the meaning is quite different: 60000 hours of plasma TV is the life span of the screen. After the life span, the screen, which accounts for 70% of the TV cost, will be scrapped and can only be replaced with a new one, Moreover, its pixels will gradually deteriorate with the use, affecting the image quality; The LCD TV screen does not have the problem of life span. 60000 hours refers to the life span of the backlight, as long as the TV itself is of excellent quality,After the service life, if you replace the backlight, you can get the same effect as a new TV. Although the launch time of the new generation of flat-panel TV is still relatively short, and the service life of the whole machine has not been verified, from the past experience, the Japanese brands such as Sony and Hitachi, which can easily use a CRT TV for more than ten years, should not let people down, However, domestic and Korean brands can only be tested by time.
.
.
compatibility.
finally, don't ignore the problem of compatibility.
nowadays, the function of LCD TV is not only to watch TV programs and movie CDs, but also to display computers, digital cameras, digital cameras and other digital devices, Therefore, rich interfaces are very important.
at present, all LCD TVs are equipped with complex video terminals, s terminals, component input terminals and other traditional interfaces.
when purchasing, it is necessary to pay attention to the VGA interface that can be connected to the computer, The HDMI high-definition digital multimedia interface can leave us more room for expansion.
.
.
finally, we should remind that.
intuitive feeling is an important basis to measure the TV effect. To understand the actual effect of a TV, we should not only read the shopping guide and evaluation articles, but also go to the store to verify it with our own eyes and ears, Feel the excellent performance of those real high-quality LCD TVs in definition, detail, layering, color, motion picture and sound effect.
.
.
.
in close range
Related topics