Breakthrough technology of mainstream LCD in 2006 (2)

Contrast the most attention

The contrast is generally understood as the brightest and most dark brightness values, for example, we measure a white brightness of the LCD screen is 250 nits, while the black brightness is 0.5 nits, the formula of black / white = contrast, concluded that the display contrast is 500:1. By analogy, if the black "black", the more white "white", the higher the contrast, the lower the contrary.

Contrast the most attention

We can know the significance of contrast in practical application from the concept of contrast. The contrast directly affects the picture sense of the level of performance, in general, the greater the contrast, the displayed image is clearer, more vivid colors; on the contrary, in contrast, will make the display screen as dust. Because of the contrast can be enhanced by the contrast effect of the other screen to enhance the level of expression, visual effects will show a strong sense of three-dimensional. Black and white contrast in some of the larger text display, picture display, as well as black and white photos, etc., high contrast products in black and white contrast, clarity and other advantages.

With the user's demand will gradually put the quality of the screen is the most important position, the contrast has become the most concerned about the display of the 2006 technical key words. In contrast to control the cost of LCD display to improve the contrast, LG DFC sharp ratio technology in the forefront.

LG DFC full name Digital Fine Contrast, sharp ratio (DFC) technology is a special optimization techniques for the contrast. This technique is mainly composed of three parts, respectively is ACR (Auto Contents Recognition automatic identification, namely, DCE (Digital) Contrast Enhancer, digital contrast enhancer (Digital) and DCM Contrast Mapper, namely digital contrast mapping). ACR can automatically detect and display the parameters of the input signal from the PC host, then adjust and optimize the contrast of a liquid crystal display; DCE can significantly reduce the dark brightness, and effectively adjust the degree of bright middle levels, so as to optimize the display effect; DCM can judge the contrast is optimized and comprehensive adjust the picture and display. That is to say, the sharp ratio (DFC) technique requires three steps to optimize the contrast.

Contrast the most attention

With the launch of the LG series of new products, we are not difficult to see, in addition to low-end L1717s, L1917s, LG almost all the new products are equipped with sharp technology, and through the contrast of different product positioning, DFC currently consists of 1400:1, 1600:1, 2000:1 several, in the subsequent launch of the liquid crystal that will appear in the 3000:1 model.

In general, the user can bring huge application value of technology and products, will be widely favored by the market and consistent pursuit. In this regard, the contrast is becoming more and more people pay attention to the choice of LCD indicator, because it directly determines the quality of LCD screen. The emergence of sharp ratio technology is just to solve this problem, especially in the premise of not raising the price of the product. We do not need to read the process of technology and nature, as long as the real results, it is enough to make people happy.