A Basic Guide to Home Theater TV Projectors
We always look forward going to the cinema because we get to see life-sized images in action. This is why many people now opt to switch their TV screens to projectors. Projectors make it possible to enjoy realistic entertainment in the comfort of our own home. Read on to better understand how these nifty gadgets are able to provide you with a different level of entertainment.
The difference between watching TV and cinema
A movie projector utilizes front projection. The source of light is behind your back while the screen where the image is projected is in front. On the other hand, television sets function by using back projection. You are seated in front of the TV while a pattern of light is produced by a complex electronic mechanism at the back of the screen.
A projection TV uses both front and back projection
The Projection TV is a combination of the two technologies. Back projection is used to create the picture while front projection is used to display the picture on the screen. Projectors have come a long way ever since they were invented.
A review of the evolution of projectors
The CRT projector is the first model of TV projector that rose in popularity in the 1980’s. It is similar to the powerful CRT TV. Instead of flashing 3 colored electron guns on a phosphor screen from the back, 3 heavy-duty light guns flash red, green and blue images to a screen at the front. The images combine together to form a single, colored image.
LCD sets eventually replaced the CRT TVs and projectors. They are smaller, cheaper, lighter, more dependable, and use less power than a CRT set. In an LCD projector, a very intense light passes through a tiny LCD screen to a lens. The lens will then project a magnified image to the wall. Unfortunately, the image produced by an LCD projector is usually poorer than a CRT. The lamps used in an LCD set also tend to burn out over time. Read more projector reviews here https://gadgetreview411.blogspot.com/2018/01/cinemood-lte-mini-projector-for-kids.html
LCD projectors are now considered old school when compared to DLP projectors. DLP stands for Digital Light Processing. It utilizes a completely different way of producing images with microscopic mirrors. The mirror is set at an angle in order to catch light. It is then slightly tilted to direct the light into the desired location. Tilting the mirror backward and forward enables light pulses of different duration to be transmitted precisely. This can be used to send complex messages just like a Morse code.
How does DLP technology work?
DLP technology was first developed by Texas Instruments in the mid-1980s. It uses an amazing microchip called the digital micromirror device. The microchip has around 2 million small mirrors that are placed in a square grid. Every mirror has a diameter so thin that it is only 1/5 of the diameter of human hair. An electronic circuit tilts the mirrors back and forth every time light shines on the mirror chip. A combination of light and dark lights is produced in order to form a high-resolution image.
The technology needed to produce colored images is a bit more sophisticated. A colored spinning wheel is used to add the red, blue or green color to the pixels. Once it is combined with the tilting mirrors, the colored wheel creates a picture using pixels of different colors.
The DLP projector is the most recommended model for a modern home theater system
DLP technology offers a vibrant, colorful and clear picture with better contrast as compared to other technologies. Since the distance between each mirror is less than a micron, the space between the pixels is limited. This results to a sharper image. Using mirrors reduces the risk of losing light, thereby increasing light output. DLP technology also produces a deeper black color than LCD technology so we recommend it for your home theater projector needs.