Output current accuracy: one is the same chip channel between a current error value; the other is a different chip output current error value. Output current accuracy is a very critical parameter led display, great uniformity of the display on the LED display. The greater the error, the worse display uniformity indoor led display screen body is difficult to achieve balance. Darkness of the mainstream position among chip constant current source (bittobit) current error is generally less than ± 3%, inter-chip (chiptochip) current error is within ± 6% is the so-called gray or gray-scale gradation, brightness refers . For the digital display technology, the gray factor determining the number of colors displayed. In general, the higher the richer gradation led display manufacturers, display color, the picture is more delicate full color led display, more performance rich in detail. Gray scale level depends on the system A / D conversion bits. Of course, the system of video processing chip, memory and transmission systems must provide appropriate support for the median job. At present, LED display mainly uses eight processing systems, namely 256 (28) levels of gray. Simple understanding is that 256 kinds of brightness change from black to white total. Use RGB color can constitute a 256 × 256 × 256 = 16777216 colors. It is known as 16 million colors. International brand display 10-bit processing system mainly uses, namely 1024 gray, RGB primary colors may constitute 1.07 billion colors. led display manufacturers, 金锐光 electricity (certified), when the male led display provided by the Science and Technology Co., Ltd. Yichang 金锐光. Yichang Jinrui Guang Technology Co., Ltd. (www.ycjrgd.com/) Hubei Yichang, Electronics & Electrical Project Cooperation leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . In Jinrui Guang electric leadership with the staff warmly welcome all inquiries negotiations to create a better future Jinrui Guang electricity.