Best Portable Projector for Gaming
To get some clue of how computer projectors work, stay tuned because this article will share with you the operation of DLP and LCD technology, which will hopefully help.
Digital Light Processing
The shots cast onto the screen from the projector initiate from the projection source utilizing reflective technology named digital light processing DLP.
Digital Micromirror Device
The DLP processing panel utilizes a digital micromirror device or DMD, which operates as a light switch. Inside each DMD chip are many tiny mirrors compared to one pixel of light in the projected image; the mirrors tilt towards or away from the light origin (thousands of times a second) to construct up to 1024 shades of gray.
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Single-chip Dlp System
In a single-chip DLP system, a color wheel adds to transform the monochromatic picture into color. When the color wheel spins, it yields red, green, and blue light to fall consecutively onto the DMD chip. When the on-and-off states of these tiny mirrors conform with these flashes of light, over a billion colors can be formed.
Three-chip DLP System
In a three-chip DLP system, white light passes through a prism dividing the light into red, green, and blue. Each chip dedicates to a primary color. The red, green, and blue reflections combine and pass through the lens to project (an image of more than 35 trillion colors).
In contrast to DLP technology, where light echoes from digital micromirror devices DMD s chips, LCD technology passes light via the polysilicon LCD panel and is, thus, comprehended as a transmissive technology.
Composition of a liquid crystal display
A liquid crystal display comprises two transparent sheets of polarizing material with liquid-containing rod-shaped crystals sandwiched between them. The LCD panels do not emit light, but the light is lost when polarized light hits the edges of the transistors. The light does not pass through, and a grid-type shadow gets created.
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For this reason, many of Christie’s LCD projectors are equipped with a microlens array enabling a greater concentration of light onto the panel and reducing the light lost after it passes through.
Where the DLP chip retains millions of small mirrors, the LCD chip has millions of tiny cells. Each cell’s opacity can get controlled by sending an electrical signal that controls the light transmission properties of the LCD panel. Light is polarized before it passes through the LCD; an electrical charge is applied to the crystals in the layer, causing them to rotate the plane of polarized light. These and off states can produce up to 256 shades of gray or 8-bit processing.
Three-chip LCD System
In a three-chip LCD system, white light passes through a series of dichroic mirrors that divide the light into red, green, and blue. Each chip dedicates to a primary color; the red, green, and blue images combine and pass through the lens to project the image.
Reasonable alternative exists
Although transmissive technology does not duplicate the image quality of reflective technology such as DLP systems, the supposition is that high-quality LCD technology has advanced to sufficient standards to offer its customers a lower-cost alternative. There you have it; the way computer projectors operate.
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