Which is the cheapest LCD monitor or LED monitor in 2012
Author:Xiong Wei Time:2021-07-21 15:45 Browse(263)
Now, LED has become the mainstream of lighting and other application fields. The R & D and application of LED are strongly supported by the state. Moreover, with the maturity of technology, the application cost is also decreasing. Therefore, whether from the current development or the future trend, LED display has more advantages. Of course, the current price is lower than LCD.
Now, LED has become the mainstream of lighting and other application fields. The R & D and application of LED are strongly supported by the state, and with the maturity of technology, the application cost is also decreasing. Therefore, whether from the current development or the future trend, LED display has more advantages, Of course, the current price is lower than that of LCD.

Which is the cheapest LCD monitor or LED monitor in 2012

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the advantages of LED display are as follows: wide color gamut, CCFL (cold cathode lamp) backlight is used to excite phosphor emission.
there are many impurities in its emission spectrum and low color purity, which leads to its small color gamut, usually only about 70% of NTSC.
while the emission spectrum of LED is narrow.
the color purity is good, The backlight with tricolor LED has a large color gamut and excellent color reducibility. By selecting suitable tricolor, it can reach 105% of NTSC, Compared with the traditional CCFL backlight, the color gamut is expanded by about 50%.
· advantage 2: longer service life. Generally speaking,
the service life of LED backlight is longer than that of CCFL.
the rated service life (half bright) of different CCFLs is between 8.
000-100000 hours, However, the LED backlight can be about twice as long as CCFL.
moreover, the service life of the improved CCFL backlight will be shorter.
in addition, due to the circuit design, the size of the LCD with LED backlight is expected to be smaller, Moreover, the cost of circuit design will be greatly reduced.
· advantage 3: environmental protection and energy saving in the LCD with cclf cold cathode fluorescent lamp as the backlight.
one of the main elements that can not be missing is mercury, which is familiar to all,This element is undoubtedly harmful to human body.
although manufacturers have tried their best to reduce the mercury content in fluorescent tubes.
however, the completely mercury free fluorescent tubes will bring some new technical problems, which can not be realized for the time being.
the advantage of LED backlight is that it does not contain mercury at all, The power consumption of LED backlight is lower than that of CCFL cold cathode backlight.
the internal driving voltage of LED is much lower than that of CCFL.
the power consumption and safety of LED backlight are better than that of CCFL (the AC voltage requirement of CCFL is relatively high, reaching 1500-1600 VAC at startup, and then stabilizing to 700 or 800 VAC), However, led only needs to work at 12-24 VDC or lower voltage.
· advantage 4: if ultra-thin LCD TV is to be ultra-thin.
there are two main determinants, namely, the thickness of backlight module and power supply substrate. However, the whole area of backlight module is similar to that of LCD panel, while the power supply substrate only accounts for part of the area of LCD TV, The thickness of the thinnest part of LCD TV has a lot to do with the backlight module.
the side light LED in LED backlight is used in LCD backlight module for TV.
its thickness is thinner than that of CCFL straight down type, side light type and led straight down type. For Samsung's 40 inch TV LCD panel with a thickness of 10 mm, the thickness of the backlight module is only about 5 mm.
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