Who can talk about LED backlight LCD TV?

At present, LCD TVs are divided into two types, cathode ray tube backlight and LED backlight LCD TVs. Non-standard TVs in stores are called LCD TVs and led TVs. These two TVs are also LCD TVs. Generally speaking, the former uses energy-saving lamps to illuminate the panel, while the latter uses light-emitting diodes to illuminate the panel. Therefore, LED TV should be energy-saving and slim. It is also 42 inches, the power consumption of LCD is 2 10W and the thickness is 8- 10cm, while that of LED is only 120W and the thickness is 2-4cm. Furthermore, the light attenuation of LED backlight is small, that is to say, the brightness of LCD TV will be obviously attenuated within 3-5 years, while LED is relatively small.

The main performance indicators of LED TV are as follows:

1, backlight

The position of backlight behind the panel can be divided into two types: side entry type and direct down type. Side-entry machine is ultra-thin, and direct-down machine has uniform brightness.

2. LCD panel

There are four main panels: Sony Samsung, IPS(LG Philips), Sharp and Taiwan Province Province. Sharp's self-produced screen, cable three black crystal panel and IPS screen are all good.

3. Digital processing circuit

In this respect, the joint venture brand has advantages and the skin color repair effect is good. There is also the frequency doubling refresh rate, 100Hz, 200Hz. It should be noted that 120Hz and 240Hz of domestic brands are all nonsense. The field frequency of domestic TV is realized by doubling the signal base. Domestic 50Hz signals can only be multiplied by integers to get 100Hz and 200Hz. To realize 120Hz and 240Hz, you need to install a TV in the United States.

4. Auxiliary functions

Including internet access, program application and USB play.