cree: American chip, which has good stability and strong anti-static. It is unanimously recognized by peers in the use of outdoor display screens at a moderate price. Our company uses pure green tubes with a brightness of (above 1500mcd, wavelength : Extracted from 522-527nm) blue tube brightness (above 300mcd, extracted from wavelength: 472-477nm)
The ratio of the maximum and minimum brightness of Cree tubes is 1: The brightness difference of other tube cores, such as Taiwan tubes, is In addition, the brightness balance effect of Cree tubes is better than that of other tubes due to the small brightness ratio difference. The wavelength error rate of Cree tubes is plus or minus 0.5nm, while the wavelength error rate of other Taiwanese tubes exceeds plus or minus 4nm, which is greater than 1.6 times. Cree uses a single electrode package, which has the best anti-counterfeiting and no counterfeit products. However, Nichia tubes in the domestic market are not strong enough in anti-counterfeiting, and there are often fakes.
2. Silan: A Taiwanese wholly-owned company split in Hangzhou. It has high brightness and relatively good stability. This year, it has been mostly used in outdoor displays by industry manufacturers. Our company uses pure green tubes with a brightness of more than 2000mcd and a wavelength of 523-528 for extraction, and blue tubes with a brightness of more than 350mcd and a wavelength of 622-627 for extraction.
3. Taiwan Optoelectronics and wafer red tubes are most widely used in full-color displays. The brightness of red tubes is above 650mcd and the wavelength is 622-627.
4. Nichia of Japan: Excellent performance in terms of quality, especially in the three fields of "LED components", "phosphor materials" and "LED packaging". It is the first commercialized gan-based blue LED/ld, and has the best phosphor technology at present; blue light excitation yellow phosphor technology patent, and sapphire substrate epitaxial wafer technology. It can be seen that Nichia’s technology is extraordinary
5. Our company produces display screens with a main wavelength within the 5 nanometer range and a chip size of 13 mil or 14 mil; the sealed box has a waterproof performance of ip65 and a grayscale level of 256 (8-bitc technology), the flatness is less than 1 mm, the white balance reaches 6500cd, the frame change frequency is more than 60 Hz per second, the refresh frequency is 480 Hz per second, and the above main performances all reach the industry standard c-level
Display screens (outdoor full-color LED displays are all statically scanned. The brightness of the full-color screen reaches more than 5500cd per square meter. The outdoor single and double-color displays are 1/4 scan, and the brightness per square meter is more than 3500cd; indoor full-color screens generally scan at 1/8. The brightness is above 1000cd, indoor single and double colors are scanned at 1/16, the brightness per square meter is above 150cd) scanning can be done