Adjust the brightness allows a more realistic color representation

Brightness is the brightness of the LCD TV is the brightness of the screen, it is also an important parameter index LCD TVs. Reasonable brightness can make our eyes more comfortable, but it will not affect the color performance of the screen. In general, high brightness hand easily cause visual fatigue, but also to reduce the black and white contrast , the impact of color gamut and grayscale performance. Because the brightness of the LCD TV is achieved by adjusting the backlight . The higher the backlight brightness , LCD TV itself more easily to dilute colors , picture whiten.

Now available in many of the hundreds of known brightness of the LCD TV 1000 lumens, 2000 lumens , is not good , you know the brightness of traditional CRT TVs generally about 300-600 lumens, has a very good performance . The actual use situation, adjust the brightness of LCD TVs 50% is more appropriate . If you feel too bright , some may be further reduced in accordance with the actual situation. If the brightness of more than 70 %,I2C Lcd Display it may affect the performance of the color screen .

Small with disabilities : The current general brightness of the LCD TV backlight control by using CCFL (cold cathode fluorescent lamp ) backlight technology, the performance of the NTSC color gamut for only about 75% , while the use of LED backlight LCD TV can show more wide color gamut can be more than 100% NTSC color gamut .

 Contrast adjustment presented with more picture detail

Contrast is the same point on the screen when the brightest ( white ) when the ratio of the darkest (black ) of brightness , higher contrast ratio means that the screen can show more detail , can show more color scale, which makes colors more gorgeous. Unfortunately , the current market value of most LCD TVs contrast marked , are called dynamic contrast ratio, basically not much real meaning.

That is why when we adjust the LCD TV QVGA lcd, nor can it adjust the contrast is too high , otherwise it could lead to a situation picture whitening ; If too low , it may be an excellent screen color is very light situations. In general, about 50% of the contrast value is more appropriate . In addition, if a non- special needs , the best dynamic contrast feature LCD TV off.