Types Of Projector – Which Is Best For Your Need?

A projector is a device that transforms a beam of light into high-definition images using chips, lenses, color wheels, and various other gadgets and gizmos. The history of projectors is very old. The first carousel slide projector was officially patented in 1965 by David Hensen.

Home projectors or video projectors are used by most of us, but how does high-quality projector work? Do projection units need a stand or support for outdoor settings? Are there any ceiling-mounted projectors?

Typically, projectors create images using a small transparent lens, though some newer types also utilize lasers as the light source to project the image directly on the projector screen. Using a projector, you can project images from a Blu-ray player or computer onto a wall or white screen as an output device.

DLP projectors or digital light processing projectors are popular for projecting images that are of high quality and clear resolution onto a screen. DLP technology is utilized in both front-projection and back-projection units. The front projectors are used to reflect the light source. eg. a television. In the rear projection, the light diffuses through the material behind the screen and back through the surface. eg. projectors used for presentations in a school or any organization.

Among the different DLP structures, there are 1-chip DLPs and 3-chip DLPs. An image rendered by a DLP projector with 1 chip may contain over 16 million colors, while an image rendered by a digital light processing projector with 3 chips may contain more than 35 trillion colors. Consequently, the projector can produce more realistic, natural-looking images.

In contrast with LCD projectors, DLP projectors display each color simultaneously, resulting in remarkably accurate color levels and stunning pictures. While comparing the price, DLP projectors are on the more expensive side than LCD projectors. There is no doubt why digital light processing projectors are becoming more common in projection booths in movie theaters.

From the name, LCD or liquid crystal display, we can easily deduce that LCD projectors use 2 different matters i.e. solid and liquid. LCD projectors use a liquid crystal that performs the task to display images, videos, or any type of data. With LCD technology, there are thousands of tiny mirrors inside the projector that allow it to reflect video signals back to the screen, resulting in improved clarity and resolution. Generally, an LCD projector is used for business and board meetings, seminars, and presentations inside a conference room.

LCD projectors generally use a standard bulb as their primary light source. The source light passes through 3- colored liquid crystal display panels. These panels allow some colors to pass through them and also block some colors. When compared with digital light processing projectors, LCD projectors can deliver higher light output on a big screen at lower costs. There are no rainbow effects or dithering problems with LCD projectors as opposed to DLP projectors.

LCD projectors are less portable projectors because they are relatively bulkier than other projectors. Long-term use of LCD projectors may result in image degradation, as well as faster temperature rise than most projectors.

CRT projectors work much like CRT televisions, with 3 CRT tubes producing one of the primary optic colors, each at the same time. It is necessary to apply high voltage inside a television set to excite the electron beam within a picture tube, which generates light output when it hits the phosphor surface. Most of these projectors have a lower lumen output than other types and project images best in a dark room.

In essence, CRT projectors are basically video-projecting device. CRT projectors work much like CRT televisions, with three picture tubes producing one of the primary optic colors, each at the same time. Analog CRT projectors do not have a fixed number of pixels as digital projectors do. Afterward, the three primary colors are aligned on the screen to create one color-integrated picture on the white screen. This gives them greater flexibility when it comes to generating clear image directly from sources with different resolutions.

Images produced by CRT technology exhibit excellent color balance, contrast, and saturation, as well as good reproduction of flesh tones and black levels. It also has the advantage of not requiring frequent lamp replacement. Despite their benefits, they are generally bulky, expensive, and difficult to set up at the initial stage.

We hope that this guide on different types of projectors has helped you in outlining the difference between the three types of projectors; CRT, LCD, and DLP projectors. Since the first projector, technology has evolved tremendously. However, this method of watching movies is still one of the most convenient ways to have the experience of being in a full-sized movie theater without spending a lot of money.