How To Buy A Television

Many people buy LCD TV A variety of indicators to measure the time like parameter, the screen brightness was among them. Importantly, many people tend to believe that the higher the better screen brightness, it is unscientific, inadequate brightness can easily cause eye fatigue or even injury to the eye health.

What is the brightness Screen brightness is the brightest, the unit is Candela per square meter (cd/m2), or nits. Candela per square meter (cd/m2) or nits is the meaning of the candles per square meter brightness, that is, the light intensity per unit area.

LCD with brightness Early LCD TV And displays a great lack of increase is not up twice, which greatly affect the ability of LCD TV performance and picture viewing, and therefore to better quality performance, with the manufacturers used to produce higher brightness of the LCD TV.

How to increase the screen brightness

Currently there are two ways to improve brightness, one is to increase L

CD Panel light through rate; the other is to increase the brightness of the background light, or increase the number of lamps. Light through the LCD panel to improve the rate, also known as “polished technology”, the display surface is like loading a layer of glass to enhance the reflection of light, but also to improve the screen contrast and color saturation.

Screen brightness and Vision Health To note that the lighter the better the product is not necessarily products, TV screen is too bright often unwell. The researchers noted that when the display brightness 100cd & m2, they will cause visual fatigue. The “polishing technology” so that the display is easy to use the eye to be light, “stab”, but also apt to cause eye fatigue, or even lead to vision loss and headache health problems.

Highlight is not the only pursuit

High brightness on the one hand easily cause visual fatigue, but also to reduce the pure black and white contrast, color gamut and gray scale performance impact. Survey shows that the brightness of conventional CRT television around 300-600cd/m2, and proved that the brightness in the 20-35 inch screen size is sufficient to meet the requirements of visual appreciation.

Select the right product brightness Currently on the market most of the TV’s brightness in 450-600cd/m2 about the individual to 800cd/m2, 1000cd/m2 or even higher, it has been able to meet the needs of most consumers. Select the appropriate brightness and viewing distance has a lot of television, big screen TV viewing distance is generally more suited for a select type models with higher brightness, and small-screen TV are advised to select the brightness of the product should not be too high. The general brightness of the ideal reference for the selection criteria can be rough, that is not higher than 2200 * screen height of the square, while the screen of not less than 1800 * the square of height (height of the screen into the first international standard unit: m).

LCD brightness selection should also pay attention to the uniformity of

Brightness uniformity is also very important, but the LCD TV product specifications usually do not do in labeling. Uniform brightness or not, and the backlight source and the mirror is closely related to the number and configuration, better quality TV, the screen brightness uniformity, no obvious dark area. Uneven screen brightness will seriously affect the appreciation of the method to determine the brightness uniformity is usually only careful observation, especially in a single color screen, often the best opportunity for selection of LCD TVs may wish to request receiving personnel will transfer into a single color screen to identify.

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