In the 1970s, the earliest GaP, GaAsP homo-junction of red, yellow, green and low luminous efficiency LEDs have been used in lighting, digital and text display. Since then, the LED began to enter into a variety of application areas, including aerospace, aircraft, automotive and industrial applications. The communication and consumer LED products are throughout the various departments of the national economy and millions of households. In the year 1996, LED sales in the world had reached billions of dollars. In the recent last decade, high-brightness and full-color technology has been the topics at the forefront of LED materials and device technology. In the year 1991, Japanese Toshiba company and the United States HP company had researched and developed the InGaA1P 620nm orange ultra-high brightness LED, and in 1992, the InGaA1p590nm yellow ultra-high brightness LED came into practical use. In the same year, Toshiba has developed InGaA1P 573nm yellow-green ultra-high brightness LED, the normal light intensity reached 2cd. Nichia Corporation of Japan in 1994 developed the InGaN 450nm blue (green) color high brightness LED. At this point, the three primary colors needed to color display of red, green, blue and orange, yellow various colors of the LED reached the candela luminous intensity level, achieve high brightness, full color, the outdoor full color LED display became a reality. The development of china led displays started in the 1970s and got a rapid development in 1980s.
Large LED Display Screen
The large screen display is another huge market for ultra-high brightness LED applications, including: graphics, text, digital monochrome, double color and full color display. The traditional big screen active display is commonly used incandescent lamp, fiber optics, cathode ray tubes and so on; and passive displays are commonly used flop method. The LED display has been limited by the LED performance and color. Today, the ultra-high brightness LED of AlGaInP, TS-of AlGaAs InGaN LEDs are able to provide a bright red, yellow, green, blue and a variety of colors, can fully meet the requirements of full-color large-screen display. LED display can be assembled into various structures according to pixel sizes, the small pixel diameter is generally less than 5mm, each pixel monochrome display is matched with a T-(3/4) of the LED light, each pixel of two-color display has two-color T-1 (3/4) LED lights, while you need three T-1 red, green and blue LED lights for full color display.
Full Color LED Display Products Features
Strong applicability: The Mountain Wood Display is dedicated to the outdoor variety of environmental research, and it applies the results to the system design, so that to make the adaptability and reliability of its products in the outdoor variety of harsh environments have been significantly improved; rich colors: composed of three primary colors (red, green, blue) display unit boxes, red, green, blue 256 gray constitute compose of 16,777,216 kinds of colors, making the electronic displays showing rich colors, high saturation, high-resolution display and high frequency dynamic images; scope: government plaza, leisure square, the bustling commercial center, advertising information signs, commercial streets, railway stations and so on. With the widely application, the led display manufacturer is dedicated to grasp the development opportunity to invest big money to research and development of new LED displays.