Introduction to the Principle of Display Technology and Light Source Technology in Projection Industry
Laser projection is not a new word for people in recent years, but actually it is still a new technology of laser technology. This technology brings the historic turn for the industry, and it will still the trend of the future, laser projectors also become the main products of the projection industry.
For the laser projection market, there are two mainstream display technologies, DLP and LCoS.
1. Display technology
1.1 DLP display technology
DLP is the short name of "Digital Light Processing". The principle of the DLP is that the image signal will be digitally processing before projecting it through light.
This technology uses the DMD chips, DMD means Digital Micromirror Device. The chip is the most advanced optical switching device to date and contains two million tiny microscopes, each about one-fifth the size of a human hair, arranged in regular rows and hinged to each other.
When the DMD chip is coordinated with the digital video or image signal, light source and projection lens, the microscope can project the full digital image onto the screen or other surface to complete the projection process.
DHN laser projector
mainly adopts DLP technology for large venues edge blending. DLP has the advantage of high color stability and high color consistency, so it is more suitable for the multiple projector edge blending.
DHN laser projectors mainly used for the large conference rooms, multimedia, hotel banquet and other large venues.
LCoS technology is a combination of semiconductor and liquid crystal display technology, through the micro-circuit control voltage, make the liquid crystal torsion, the use of liquid crystal control of polarized light, to achieve the light switch, so as to achieve the display image.
2. Light Source Technology
2.1 LED Technology
LED means Light Emitting Diode, which is a kind of solid state semiconductor device that directly convert electrical energy into visible light.
2.2 Laser Light Source
When laser light source into the projection industry, which make the whole industry fanatical. The advantages of laser light source projectors are the high brightness, long service life and wide color gambit enable the rapid expansion of projection market segments. In the initial stage of laser light source, it encountered a bottleneck in the red light, green light problem, and now with the laser technology problems continue to overcome, laser projection display effect, the product is gradually accepted by the user. In addition, it has gradually optimized the details, such as eye protection and humanization, to improve the user experience. It can be said that the market potential of laser projection is huge and can be expected in the future.
DHN laser projector
is a product of this trend，which is uses DLP technology and the laser light source for large venues.
Generally speaking, whether the DLP display technology or LCOS technology, LED light source or laser light source, the ultimate purpose of projection technology is to bring better product experience to users. Through the feedback of product application and the change of market demand, it is believed that the projection industry will also find out more suitable products for users and bring the industry into a better stage of development.