1.Density As the indoor full color led chip heat, the control circuit density is high, so now the commercial full-color dot density can not be done very high, mainly P5, P6, P7.62, P8, P10 and several other The
2. Drive mode. Indoor full color led display drive are constant current drive, the use of dynamic scanning (mainly 1/4, 1/8 and other scanning). In the case of the same die, 1/4 scan with the circuit to be more, the brightness should be higher.
3. Package form. Indoor full color LED display led surface form of a single lamp, sub-surface paste, three fight a surface paste and three-in-one paste, etc., the appearance is not the same. Surface mount package has the advantage of large viewing angle, good luminous consistency, easy automatic welding processing, full-color led screen is the mainstream product, but now the price is relatively high; single light angle is relatively small, slightly higher brightness, lower prices. In fact, it is a single light. Single and sub-table are relatively cheap, is a transitional product.
4. Real pixels and virtual pixels. And outdoor full color, indoor full color of the pixels are divided into real pixels and virtual pixels two.
5. die. And outdoor full color screen, the general recommendation of the indoor full-color blue tube and green tube with Shi Lan Ming core die, red tube with Guang Lei or Jia Jia's die. High-end products recommended Japan's Japan and the United States Cree's die.