LED lighting shows the difference between grayscale and brightness
LED display gray scale is the so-called color or gray scale, is the brightness of the degree of brightness. For digitized display technology, grayscale is the determining factor in the number of colors. In general, the higher the gray scale, the display screen shows the richer the color, the picture is also more delicate, more rich performance details.
Although gray is the deciding factor in determining the number of colors, it is not to say that the greater the better. Because the first person's eye resolution is limited, and then improve the system processing bit number will involve the system video processing, storage, transmission, scanning and other aspects of the changes, the cost surge, cost-effective but decreased. Generally speaking, civil or commercial grade products can use 8-bit system, broadcast products can be used 10-bit system.
Brightness discrimination level refers to the human eye can distinguish the image from the darkest to the white between the brightness level. The gray level of the display mentioned above is very high, can reach 256 or even 1024 level. But because of the sensitivity of the human eye to brightness is limited,
And can not fully understand
Do not have these grayscale grades.Many adjacent levels of gray-scale, people may look the same and the ability to distinguish eyes each person is different. For the display, the human eye recognition level is naturally the better, because the display of the image, after all, is to see people. The greater the brightness level that the human eye can distinguish, the greater the color space of the display, and the greater the potential for rich colors. Brightness discrimination level can be used to test the software, the general display can reach more than 20 even if the better level.