The meaning of dynamic contrast degree of liquid crystal display
Dynamic contrast refers to the contrast values measured by a liquid crystal display under certain circumstances, such as each area of the screen, and the contrast value of the region with the largest contrast as the contrast parameter of the product. LCD Dynamic Contrast adjustment can only be in the theoretical words, but we actually adjust it actually effect is not obvious. He is used to reduce the black brightness in dim scenes or to increase the maximum brightness in the scene, thereby improving visual enjoyment. Different manufacturers for dynamic contrast measurement methods are not the same, the real adjustment is the contrast is effective. The effect of dynamic contrast is not obvious.
Then the LCD dynamic contrast is bigger the better?
In fact, we are really useful for the display is the normal contrast value, rather than dynamic contrast, really adjust the effect of dynamic contrast is not obvious. Dynamic contrast and real contrast is two different concepts, generally the same liquid crystal display dynamic contrast is 3-5 times the actual contrast degree. Therefore, dynamic contrast is just the number of players playing the game, and there is no practical significance.
The original dynamic contrast is mainly applied to the projector (dynamic aperture control) and LCD TV, to reduce the dark scene in the black brightness or increase the maximum brightness in the scene, thereby enhancing visual enjoyment. From the embryonic form of "dynamic contrast" technology and its actual effect, the best application range should be applied to video playback applications. Not necessarily. The greater the dynamic contrast, the better, open dynamic contrast after we found that the bright part of the screen brighter, darker dark. But objectively, the performance of the film to open the dynamic Contrast screen details have a certain loss, such as the lower left corner of the screen, some scene details can not see clearly. All also need to divide the scene and resolution parameters to analyze the dynamic contrast size values.