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What factors determine the effect of display
2011-10-18 by seoer1
   Everyone in the store or visiting the IT digital products on the Internet to find information, will find their first performance parameters table, which can directly reflect the positioning of this product, performance and other information, is also true for display products. However, there are 20 kinds of products usually display parameter options, not every parameter is meaningful to everyone, even some parameters may also act as a "misleading" role, then the factors that affect the monitor display exactly what does?
    
Response time

    
Since the LCD display  appears, the "response time" of this spell has been plagued LCD. Because of different imaging principle and CRT monitors, liquid crystal molecules in the deflection will take some time to move to the correct angle, but this time was a "response time." Despite the end of this time more often as 2ms, 5ms, the maximum will not exceed 25ms, but it was enough to bring the user to detect, especially in watching movies and playing games will be shown very clearly.

    
Simple in theory, the response time is as short as possible, the screen trailing phenomenon will be more obvious. However, due to reduced response time to pay a certain "price": ability to affect the performance of LCD gray scale and color reproduction accuracy. Therefore, to determine the response time is not the sole criterion for all display good or bad: as for the game in terms of entertainment, 2ms response time of this low will be of great help to the user, the actual experience more effective than 5ms, 8ms display better; But for professional graphics, medical and other users, they emphasize the ability of gray scale performance and color accuracy, and basically only in a static screen to complete, so the response time is almost meaningless in terms of its shorten the response time of only will have a negative impact, so simply take the "response time" to measure all of the liquid crystal display is not very scientific.
    
Contrast / dynamic contrast

    
Contrast, in particular, dynamic contrast ratio display manufacturers three years ago the main battlefield. In fact, the display screen contrast is the contrast between light and dark, that is, the maximum brightness and minimum luminance contrast, it will display the grayscale luminance characteristics and performance impact. The "Dynamic Contrast" is the display screen of the IC chip to detect dynamic information, while most of the black screen automatically reduces the backlight brightness, improved contrast ratio to achieve the purpose.

    
Typically alphanumeric LCD module contrast between 500:1 to 1000:1, hardly any significant difference. But Samsung and BenQ will each class wide viewing angle panel of VA added to the display after camp, thanks to VA panel black screen with the performance of outstanding ability, their native contrast ratio is also significantly improved, such as BenQ EW2430V native contrast ratio models up to 5000:1, the main screen in black ability to better performance. As for the dynamic contrast ratio, 20,000:1 its value after the upgrade to the real impact is very limited, so the reference to the significance.
    
Brightness

    
I believe we have been very understanding of light, not too much here, we introduce, in units of cd/m2, it said the brightness of the display screen, mainly by the transmittance of the LCD panel and backlight brightness to decide. Of course, brightness is not as high as possible, high brightness will accelerate the user's eye fatigue, or even damage eyesight. Usually the largest LCD to 250cd/m2 400cd/m2 brightness values ​​in between, the difference is not too large. In addition, high-brightness does not necessarily mean better, high-brightness display only in some special occasions, such as outdoors or in high brightness environments will play a role, otherwise it will cause trouble.

    
Resolution

    
Resolution refers to the display screen of sophistication to the number of pixels per unit length, or liquid crystal display to reflect the total pixels, 1 inch (2.4cm) of pixels with ppi (pixelsperinch) said. Usually the same sizes of LCD resolution is similar, as 21.5 widescreen, 23 widescreen resolution of 1920 × 1080,19 best widescreen resolution of 1440 × 900, etc. mainly. The greater the resolution that it can within a single screen to display more content. In some special areas, such as security monitoring, and other research institutions, and its characteristics can achieve higher resolution display, of course, the price will be more expensive.
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Number of colors and color values

    
Usually we will see in the leaflet "6bit", "8bit", "16.7M color" such words, as well as "92% wide color gamut," this name, they said the same back to the thing? In fact, the number of display colors is determined mainly by the liquid crystal panel, liquid crystal pixel of the liquid crystal panel driver circuit load voltage determines the size of light and dark shades, gradation, the more the signal voltage, we can adjust the brightness of the more complex adjustments, that the more Number of colors. "8bit color" and "16.7M color" that is the same meaning as (2 ^ 8 × 2 ^ 8 × 2 ^ 8 = 1677216, that is, 16.7M), wide viewing angle panel is usually native support 8bit color, while the TN panel native only supports 6bit (2 ^ 6 × 2 ^ 6 × 2 ^ 6 = 262144), although a special dithering algorithm can be allowed to 16.2M color support, but after all, native effects have some differences. The higher the number the better the display.
    
LCD panel with the IC chip is fundamental

    
Although the general site and would most likely be marked on the color page parameters, but these parameters are determined mainly LCD panel and supporting the IC chip. As the highest price of LCD components, the quality of the LCD panel displays the basic decisions of this display is a very important aspect.
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