Home > About Characteristics of LED products LED (Light Emitting Diode) lights attract a great deal of attention as “a light for the 21st century”. This is the field where the market is fast growing as the LED light can be an alternative light source to a conventional incandescent bulb and fluorescent bulb. Compared to an incandescent lamp (bulb type), LEDs have lower power consumption and a longer lifetime. There are a number of advantages including being environment-friendly and having an excellent response speed. This technology is already introduced into a broad range of applications such as illumination, back lights, indicators and decorative lighting. The major characteristics of LEDs are their energy efficiency and long lifetime. The power consumption is 1/5 to 1/10 less and durability is 10 times longer compared to light bulbs. In LED technology development, the primary three colors of light have been developed and it became possible to realize a full-color display, which is utilized in coloring the display field. A great success of the blue LED development contributed to complete development of primary three colors of light and to realize a full-color display.   Wavelength: The highest level of luminosity of LEDs with wavelengths of 470nm for blue and 525nm for green. White light emitting and vivid full-color displays are produced by combining the three colors including the red LED.   Light Source of Communication Wireless LAN, MFP, Fiber optics, etc. Advertisement / Information Outdoor and Indoor displays, 3-Dimensional displays, Accessories etc. Measurement / Control System Meter for instrument panel, Indicators, High mounted stop lamps, Tail lamps, Side marker lights etc. Please click here for details. Office Equipment / OA System Electrophotography light sources, CD reader light sources, Printers, Scanners etc. Traffic / Transportation Vehicle lights, Traffic signals etc. Security Emergency lights, Smoke detectors, Gas leak detectors etc. Agriculture / Fishery / Bio-Related Light traps, Fishing lures, Growth-enhancement lights etc. Medical Care / Health Medical testing equipment, Supporting system etc. Home Appliances / Audio and Visual Indicators and level meters for CDs, VCRs, Videodisk players, Stereo Components, TVs, Air conditioners, Electrical appliances etc.   We have promoted research and development on LEDs (light emitting diodes) and LDs (laser diodes), using gallium nitride (GaN) as a base by utilizing our macromolecule technologies that have been accumulated in the area of automobiles. We also successfully developed blue LEDs, green LEDs, purple LEDs and white LEDs, named “TG White Hi”, with the world’s top level luminous intensity and started mass production. We can expect further development of Optoelectronics based on LED technology in order to apply to a broader range of industries such as illumination, picture images, healthcare, optical communication and traffic-related (traffic signals). We put our efforts into its research and development to meet various future demands. TG has accumulated unique galvanizing and thin-film technologies such as vacuum deposition and sputtering in order to meet demand for a decorative finish on interior and exterior products. In 1986 (61st year of Showa Era), TG launched LED development using gallium nitride (GaN) under the direction of Prof. Isamu Akasaki of the Faculty of Engineering, Nagoya University (Currently University Prof. of Nagoya University and Prof. of Meijo University) and Toyota Central R&D Labs., Inc. In the following year, TG was contracted by the Science and Technology Promotion Group to develop manufacturing technology for blue LEDs and achieved great success in its development.