With technology upgrading every day, manufacturers are also working hard to come up with the most efficient program for their projectors, which will benefit both them and us.
Projectors have come a long way since their invention over a hundred years ago. Different projectors work with different mechanisms and technologies, involving microchips, mirrors, prisms, and whatnot!
We’ll take a look at the most talked-about technologies when it comes to projectors and help you understand how they work and the advantages they come with.
Invented in 1987, the DLP technology is integrated into a huge number of projectors nowadays.
DLP stands for Digital Light Processing. There are two types of DLP projector systems: single-chip and 3-chip DLP projectors.
For both types, white light is separated into red, green, and blue by a prism upon entering the projector. The lights are shone onto the DLP chips, which receive the light and configure the picture to be projected accordingly.
After configuration is complete, the DLP chips shine the light on mirrors (for single-chip system) or micro-mirrors (for 3-chip system). The reflected and refracted lights recombine in the end and emerges from the projector as a colorful image.
Advantages Of DLP Projectors
DLP projectors come with a wide array of benefits, which is why they’re so widely used.
- DLP projectors are lightweight and low maintenance, as the components are small and sealed.
- The pictures are smoother and clearer.
This is because of the large number of mirrors being used with little space between them. The pixels stay compact and work together to produce crystal clear images.
- For the same reason, the pictures also have a very high contrast ratio. They look very detailed.
- DLP projectors work relatively quietly.
LCD technology is used not only in projectors but in a wide variety of screens like televisions and monitors.
LCD stands for Liquid Crystal Display. The technology is integrated a bit differently in each device, but they all use a component called LCD panels.
For projectors, light enters the system and is separated into the three different colors of the RGB spectrum by multiple mirrors. These colors then pass through the LCD panel in the form of electrical signals.
The panel transforms these electrical signals into an image for each color, recombines them, and emits it on the screen through a lens as a complete image.
Like the DLP, LCD projectors also come in single-chip and 3-chip projector systems.
For the 3-chip system, there are 3 separate LCD panels for each color of the RGB spectrum, processing images separately. The images are recombined and produced through a lens as well.
Advantages Of LCD Projector
Unsurprisingly, LCD projectors also come with several benefits that can be useful for your purpose.
- The LCD output looks much richer in color. The LCD panels process colors better than the DLP chips and work over a wider color spectrum, which is why the images look more vibrant and colorful.
- LCD projectors produce very bright and vivid images and generally have higher lumen ratings than DLP projectors.
Since the color processing is more efficient, especially in 3-chip LCD projectors, it enhances the brightness of the image as well.
- These projectors have better luminous efficacy or lighting efficiency.
That means, for the same power provided to both LCD and DLP projectors, the former will produce much brighter and eye-catching pictures.
LED projectors don’t refer to the display projection technology being used, like the LCD and DLP projectors. LED projectors are rather named after the LED lamps that are used as a light source of the projector.
Therefore, LED projectors can work with both LCD and DLP screen technologies. Other light sources projectors use are laser technology and lamps.
LED stands for Light-Emitting Diodes. These bulbs contain two lead semiconductors that are in solid-state.
These semiconductors work using small heat and energy to convert the electrical signal from the projecting device into a single particle of light, which contains colors of the RGB spectrum.
This light is processed by the DLP chips or LCD panels to form an image using the colors, and these recombine to form the perfect picture.
The lumen rating of the LED bulbs is what determines the brightness levels of the projector.
Advantages of LED projector
LED projectors have a number of benefits over the other two light sources.
- LED projectors always produce high-quality pictures with brilliant colors. The semiconductors work very intricately, processing the electrical signals to pictures with perfect color and making sure the output doesn’t look faded.
- LED projectors are extremely low maintenance. They don’t have to be cleaned or fixed every few weeks.
- LED bulbs have an impressive lifetime of 20000 hours on average. Some have a bit less, while some have way more hours. You won’t have to replace bulbs for as long as a decade and use the projector conveniently.
- These projectors are very green and cause no pollution. They use lead semi-conductors and not mercury or any other harmful chemicals that can harm the environment.
As we’ve mentioned in the article, LED technology doesn’t really fall under the category of display projection technologies.
The main contest is between the DLP projectors and the LCD projectors. With their features and benefits laid out, even you’ll agree that choosing one can be a pretty tough task.
Furthermore, choosing a projector depends on a wide range of factors like brightness, connectivity, ambient lighting, and so many more! You can’t just choose one projector based on the technology it works with.
However, we hope this article did make your concept of these technologies clearer and will help you make a well-informed decision when purchasing a projector for yourself.