what's lcd panel grade?

about it's price and quality??

How to shoping LCD products???

As the types, performance, quality, price differences, different display is a far cry from the performance in the visual effects, health indicators and life time. While performance, quality differences of LCD display mainly lies in the Panel. Generally, inside LCD manufacturing industry there are four quality grading standards, that is A+, A, B, C (A+ grade is the top of grade A). The lower the grade panel, relatively the lower production costs of the products, but the qualitative deficiencies will be more prominent.

The manufacturing sector in the internal LCD, the LCD screen generally have four quality grading standards, namely: A +, A, B, C (where A + grade for the top grade A-level). The lower the rating panel, the products relatively low production costs, but the qualitative deficiencies will be more prominent. Clearly computer "as bid was" concept is easy in the main LCD display between quality and price weigh. We believe that the LCD display "visual effects", "Health and Environmental Protection" and the "life" of these three aspects of performance is affected products "as bid was" the key factor, but also monitors the industry as an important indicator of grading. Visual effects: "bad spots" LCD visual effects impact "fatal wound." "bad spots" into "bright spots" and "Dark point." Both bad-spots in liquid crystal displays will directly affect people's normal browsing, the visual effects have a great impact. The so-called bright spots, as the term suggests, is to always lighting the point that the LCD screen in the background of black irregularities discovered by the light color display points. Highlights will be more dazzling, not only the visual impact of consumers, but might also lead to the screen image distortion, thereby resulting in serious consequences. In contrast with the bright spot, not-always known as the dark on the point, it is white LCD screen in the background circumstances arise abnormal color, and its bright spots equally destructive. "bad spot" is the number of levels of liquid crystal display as an important indicator. The LCD screen is a 1 million pixel elements on the composition of the individual or a few bright spots dark point is more normal, the key is not too much light or dark point in a central position. In Class A liquid crystal display, the vast majority-not dark, very dark-point individual rarely, but will not appear in the display. Instead, B, C-class LCD screen is not such a standard, at the time of purchase depends on the luck of the consumers, under normal circumstances, can buy less than 20 or so bright dark point on the LCD is pretty good. Health and Environmental Protection: "Water bellows phenomenon" is also affecting the quality of liquid crystal displays, It refers to the brightness of LCD screen presence imbalance phenomenon, will directly affect the quality of computer screen, watching pictures, enjoy large, especially the black screen circumstances utmost prominent. Medical experts and LCD joint expert pointed out, because of poor lighting and uneven brightness, long gaze fixed points, and background color contrast or light will be too small to cause eye pressure, or even cause headaches, and other symptoms. The most common eye disease is myopia and dry eye. Therefore, long-term use of water with corrugated displays will be on people's eyesight caused some damage.