For the outdoor LED display is generally used elliptical arc tube or patch LED led display manufacturers, elliptical arc tube with a small angle, high brightness, and the vertical viewing angle SMD LED is much larger than the elliptical tube Jinan led display manufacturers, but its brightness is less than the elliptical arc tube Shandong led display, from the user's point of view, it should be based on the LED display of audience and the surrounding light environment to choose a different perspective of the arc tube. For indoor LED display brightness because of low demand, a wider general audience, so SMD LED is the best option. It should be noted that the market is now part of the arc tube manufacturers to reduce costs, to confuse users, the brightness of the arc tube is made relatively high, but Angle made smaller than a conventional light emitting tube perspective, this will cause the LED display the front brightness is very high, but relatively large angle side view clear image situation arises. In the actual purchase, users can follow the "human-readable brightness level, the better" principle, the so-called brightness level, meaning the human eye can distinguish the image from the black to the white luminance level, and is recognized brightness level, the more it shows that the greater the display color space, showing rich colors potential for greater natural. About dot pitch selection, pay attention to balancing effect and Technology Jinan led display manufacturers | Gao Jin photovoltaic (Online) | led 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.