How does dlp chip work

Due to the Persistence of Vision of our eyes, our brains assume it is a complete picture. Some people have problems watching films or videos on a DLP projector. The animated image here shows how the DLP color wheel works.

When white light passes through this colored glass, for example through Red glass, Green and Blue light in the white light is blocked and only Red light is allowed to pass through. Similarly at the Green section of the color wheel, only Green light passes through and in the Blue section only Blue light passes through.

These illusionary flashes of bright colors are called the Rainbow Effect. The cause of the Rainbow Effect is because the single DLP projector shows the Red, Green and Blue portions of every frame in the video image separately and in quick succession.

Because our brains processes these rapid sequences of separate RGB pictures as one, due to our persistence of vision, some people experience the Rainbow Effect which confuses them. Single-chip DLP projectors are the most common type of home projectors and produce sharp images. Three chip DLP projectors are very expensive and mainly used in Cinema theaters. The timing of the DLP chip and color wheel has to be perfectly synchronized so that the correct color micro mirrors in the DLP chip reflect the right color from the color wheel to the screen.

Lens shift enables DLP projectors to adjust projected images without having to physically move the projector. Projectors with vertical lens shift deliver added flexibility for challenging professional installations. For home users, lens shift enables easier optimization of image placement.

Look for horizontal and vertical HV keystoning and 4-corner adjustment features to eliminate crooked and distorted images. Doing so creates perfectly proportioned pictures.

This lets users magnify images without moving the projector. Optical zoom allows for placement further from the screen without reducing image quality. The wider the optical zoom, the greater the degree of mounting flexibility. The optical zoom offered on a professional laser projector delivers outstanding ease of installation.

When exhibit designers can install DLP projectors in virtually any position, creativity expands exponentially. Laser projectors for large venues are an ideal example.

Mount one pointing straight down at the floor. At any angle from floor to ceiling. It can even be mounted upside-down at a degree angle.

Need portrait positioning? No problem. Wireless solutions add flexibility, mobility and ease. Hidden compartments house secure HDMI ports to enable multimedia content streaming. A wireless gateway lets users present directly from their USB drive, or stream directly from their phone or tablet.

Measured in milliseconds, DLP projector input latency is the time between video signal arrival at a projector and display on the screen. Lag is inevitable with any digital video processing. Gameplay can be significantly disrupted if lag is too high. Fortunately, it can be minimized. Gaming projectors feature reduced input latency. Laser projectors look best when paired with an ambient light screen. This is done to reduce any effects of ambient light and to take full advantage of the incredible images projected by DLP laser technology.

Pairing laser projectors with diffuser screens enhance contrast and eliminate washed-out images in ambient light. DLP projectors are classified by their light source and imaging technology. The most expensive use 3-chip processors. One chip for each primary color: red, green and blue. DLP projectors now use lasers or LEDs to be more efficient, better for the environment, and longer-lasting.

These newer technologies eliminate the need for a spinning color wheel. Most DLP projectors use traditional lamps.

The biggest advantage of lamps is cost, which is lower than any other option. Lamps typically last 3,, hours with standard use, then need to be replaced. Some manufacturers offer special features to make lamps last longer. Lamp-based DLP projectors deliver outstanding value while creating big, bold images. The brightness of DLP projectors typically range from 2, to 5, lumens, creating a cinema-like experience in darkened rooms.

Lamp-based projectors provide supersized movies and games, for an immersive, theater-like experience. For gaming, look for DLP projectors with low input latency. Larry Hornbeck of Texas Instruments in It contains a rectangular array of up to 2 million hinge-mounted microscopic mirrors. Each of these micromirrors measures less than one-fifth the width of a human hair.

The bit-streamed image code entering the semiconductor directs each mirror to switch on and off up to several thousand times per second. Larry Hornbeck, a physicist at Texas Instruments. These mirrors are tiny: less than a fifth the width of a human hair. Each mirror represents a single pixel. They tilt back and forth, reflecting light as necessary to create a highly detailed grayscale image.