Tips for buying LED TV
Release time:
2019-11-15 15:20
Source:
The strict name of the so-called LED TV is "LED backlight LCD TV", which refers to the LCD TV with LED as the backlight. In the strict sense, LED TV refers to the TV that completely uses LED (light-emitting diode) as the imaging device. That is, an ultra-high-density display product with a TV function designed with an LED display screen, and the size is not limited. It replaces traditional fluorescent tubes with LED light sources. LED TV has outstanding advantages such as high-quality picture, long lifespan, more energy saving, environmentally friendly manufacturing process, and thinner LCD panel. However, not all LED TVs have the above advantages. Consumers must keep their eyes open when purchasing.
First of all, the most prominent advantages of LED TV are clear picture, wide color gamut coverage, and high color reproduction. This is one of the main reasons why LED TVs are more expensive than regular LCD TVs. In addition, just using LED as backlight for LED TV does not guarantee better image quality. It must be backed by good image quality processing circuits and technologies, otherwise there will be no improvement in image quality.
Consumers can ask the shopping guide to connect to the same signal source when purchasing, preferably a high-definition signal source for comparison and viewing. If the definition is similar, or even not as good as ordinary LCD TVs, it means that this LED TV is in name only. In addition, you can also ask the shopping guide to adjust the TV screen to the state of no signal or blue screen. If you find that the brightness of the four corners and the center of the TV is uneven, or there is light leakage around the screen, it means that the LED TV technology of this manufacturer is very immature. , The most basic image quality circuit processing technology is not done well, and the quality of its LED TV is even more conceivable.
Second, look at energy saving. The power consumption of LED TVs should be lower than that of ordinary LCD TVs. If the power consumption of LEDs is even lower than that of ordinary LCD TVs, consumers should not buy them lightly.
Finally, look at technology and configuration. One of the most important core technologies of LED TV is whether it has backlight partition control. Having this technology can ensure that the TV has better image quality, lower power consumption and longer service life. There are only a handful of manufacturers with this technology. In addition, the key to the clarity and processing speed of the TV screen is to look at the chip. When choosing LEDs, it depends on whether it has a 1+1 chipset and a DOT restoration system. If it is not smooth, it cannot achieve point-to-point high-definition playback, and it will not meet the future full-range high-definition playback standard. The identification method is: play under different signal sources, adjust one of the brightness and contrast settings in the menu, and you will find that the settings of the two different signal sources are different. If they are the same, it means that this TV is processed by a single chip. In addition, from the perspective of high-definition audio and video playback, whether LED can play high-definition video VC1, H264, high-definition audio DTS, LPCM and other high-definition formats is also one of the important criteria for identifying the advantages and disadvantages of LED LCD TVs.
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