Small size of the LED chip production in order to improve the brightness of Jinan led, usually small angle package. Large size does not need the small-angle package led, because it does not require high brightness. Therefore, the wide-angle (110) high-brightness low current is the best. For indoor LED display brightness because of low demand, a wider general audience, so SMD LED is the best option. Compared with the traditional LED display, LED projecting a small spacing feature is smaller dot pitch. In practice, the smaller the dot pitch, the higher the pixel density, suitable viewing distance is more recent, on the contrary, is suitable farther viewing distance. Small pitch LED screen in order to achieve the best visual effects Jinan led display manufacturers, have the best line of sight Shandong led display, users can perform simple calculations, there is an established formula that best viewing distance = point /0.3~0.8 pitch. The smaller the dot pitch, the higher the cost of a small pitch LED display, so the actual purchase, users should consider their own cost, demand, application and other factors. Jinan led production _ Gao Jin photovoltaic (Online) _led provided by Jinan Optoelectronics Technology Co., Ltd. Gao Jin. Jinan Gao Jin Optoelectronics Technology Co., Ltd. (www.gjlled.cn) is an industry leader in Jinan, Shandong, liquid crystal devices, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Gao Jin photoelectric leadership with the staff warmly welcome all inquiries negotiations to create high gold Photoelectric better future.