Contrast LCD TV LED TV

LED TV is a bit of a misnomer, but manufacturers and retailers continue to use the term, he makes his way in the public consciousness, the difference is worth attention. TV LED LCD TV with LED lights is really only for lighting rather than traditional fluorescent lighting CFL, for liquid crystal displays. Use a liquid crystal diode (LCD) technology, the front includes the so-called “twisted crystal” technology definition LCD. LED TV features two main types of backlit, edge lighting and local dimming. LED lighting has been around from the edge of the edge of the panel, which allows very fine structure. Recently, the progress of LED (light emitting diode) technology, the lights can create a very small volume, so even if the local dimming LED backlight TV can be a very thin depth. Local dimming LED backlight lamp bank behind the panel and the control of these banks can reduce the amount of backlighting in the dark area, increasing the area of the screen in bright contrast and better blacks. This is done by the various choices of television. A recent example is the ability to open or close the selected local dimming.

We note also the improvement in black levels with this feature. Picture Notes Contrast / black levels Deep manufacturing color LCD panel through the panel by blocking the backlight, the black shows this method has an inherent problem with technology. Local dimming LED backlighting solution to this problem proposed by dimming the backlight, which should be dark. Edge lit LED will have a bright white fluorescent backlit LCD screen than most, but not control local backlight dimming as television does. This comparison has stirred up some of the recent black level performance of LCD TVs are very concentrated. Local Dimming LED TV has become the best in the past. Pros: The first local dimming technology, LED TV, so the contrast levels and black. The second recent TV LCD. The third side lit LED TV Color accuracy With white LED backlight, the difference between the two technologies are not very important, but the color of the RGB color wheel lights or LED backlighting of color TV have an advantage in the display vibrant colors. Advantage: White LED backlight LCD TV and TV backlighting fluorescent color virtually the same accuracy. Color LED backlit TV trumps both. Angle Answer to this question will often change. It seems to have some effect, now the biggest issue is the quality perspective of transparent glass in front of the TV or LCD or LED. The thicker and higher quality of this glass, better viewing angle, a little harsh adverse deterioration. Indeed, anti-glare technology to prevent glare suppressed, but the image of depth and perspective.

Recently, we saw some LCD TV has a very good perspective and depth of image Although this never happens. We also believe that it is very expensive slim edge lit LED TV show poor contrast and black level degradation perspective, just 30 degrees off center. Local Dimming LED TV will have better performance and natural light from directly behind the screen. Advantages: local dimming LED TV, then TV, LCD, and then edge lit LED TV. The biggest variable in all three is the quality of the glass facade, add depth, good viewing angle and glare. Anti-glare screen is ever so bad depth and perspective. Fast-moving video playback Fast video is a function of response time and refresh rate and LED LCD TV. The type of the backlight of the TV has no effect on reproduction of fast motion video. I would like to compare the response time and refresh rate in making purchasing decisions. The new 120Hz, 240Hz, 480Hz speed and functionality is similar behavior in our experience, the manufacturer may be more than that in reality the frequency of Hz.


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