While LCD projectors have a sharper image and superior picture quality, DLP projectors are lighter, portable, and considered to be more reliable.
DLP (Digital Light Processing) technology uses micro-mirrors to project images from a monitor onto a large screen. DLP is seen in standalone projection units, in rear projection TVs, and in a majority of digital cinema projection. LCD (Liquid Crystal Display) video projectors send light from a metal-halide lamp through a prism to display video, images, or computer data on a screen or flat surface.
|DLP Projector||LCD Projector|
||Type of projector technology that uses a digital micromirror device.
||Type of video projector for displaying video, images or computer data on a screen or other flat surface; modern equivalent of the slide or overhead projector.
|How it Works
||DLP’s one chip is with a reflective surface having 1,000s of tiny mirrors coordinated with a light source to reflect digital imagery to any surface
||Projected light onto mirrors split to 3 primary colors: red, green and blue. Colors then pass via 3 separate prisms, with colors converged via 2nd prism for projection on screen.
||*Smoother video *Smaller box *Pixels less visible *“Filmlike” on HDTV *Generate "blacker" blacks *Higher contrast *Portable
||*Richer color dynamics in ambient light *Less power *Throw less heat *No "rainbow effect" *Quieter, sharper image on data
||*Some "rainbow effect" *More moving parts *Produce audible whine *Poorer reds, yellows at full power *Color saturation *More lumens than LCD with ambient light
||*More visible pixels *Some screen door effect on certain video images *Larger - even for same lumen # *Poorer contrast *Black is lighter gray than in DLP
||Good picture quality, but poorer than LCD projectors
||Sharper image; better picture quality than DLP projectors
||Higher than LCD
||Lower than DLP
||Smaller, Lighter, Easily portable
||Buliker, Not very convenient for portability
||$300 - $1000+
||$250 - $1000+
||LED or Standard Lamp
Contents: DLP vs LCD Projector
• 1 What to Look for when Choosing a Projector
• 2 Pros and Cons
o 2.1 Advantages of DLP over LCD projectors
o 2.2 Advantages of LCD projectors
o 2.3 Disadvantages of DLP projectors
o 2.4 Disadvantages of LCD projectors
• 3 How Projectors work
o 3.1 How DLP Projectors Work
o 3.2 How does an LCD projector work?
• 4 Technology and Light Source
What to Look for when Choosing a Projector
The ideal choice for your projector depends upon several factors: whether you want it for a home theater or office presentations; whether it has a dedicated spot or will be used when traveling often; and, of course, budget. Other factors like sharpness, clarity, picture quality, etc. are constant, and non-negotiable. This video guides you on what factors to consider before you buy a projector:
Pros and Cons
Advantages of DLP over LCD projectors
DLP projectors offer road warriors and home theater enthusiasts many advantages:
- Portability: DLP projectors tend to be smaller and easier to transport given one chip versus LCD’s 3 panels. DLPs using LED or pico technology are even more portable and can connect to smart phones, tablets and other mobile devices.
- Higher Contrast: DLP projectors’ deep blacks achievable make them popular for home cinema applications.
- Reduced Pixelation: DLP projectors have a muted pixel structure when viewed from a normal viewing distance, which may not affect a PowerPoint presentation, but will affect smooth video presentations.
- Reliability: DLPs have fewer parts and are less expensive to repair - sealed optics are good for dusty environments.
Advantages of LCD projectors
LCD projectors claim three main advantages over DLP projectors:
- Better picture quality: The quality of pictures is much better in LCD projectors as compared to DLPs on account of
- More accurate colors: DLP projectors can have clear section in color wheel, reducing saturation. LCD projectors do not have a color wheel.
- Sharper image: LCD projectors have sharper image than DLP projectors at equal resolutions.
- More light-efficient: A same wattage lamp in an LCD and DLP would produce a brighter image in the LCD.
Disadvantages of DLP projectors
The few disadvantages of DLP projectors are:
- The Rainbow effect: Looking away from a projected image on older DLP or from one side of a screen may have “rainbow” effect, or moment of rainbow-colored stripes around brighter objects.
- Light leakage: Grey band outside of the image can cause stray light reflecting off the edges of the mirrors on DLP chip. This can be avoided by installing black borders around the older DLP projector screen.
Disadvantages of LCD projectors
LCD disadvantages are more relevant to video:
- Screen door effect: Sharper images can be disadvantage, since precise focusing makes pixilation more obvious.
- Contrast: LCD contrast cannot produce completely black images with older models.
- Bulky: More parts make LCD bulkier and less portable than DLPs.
- Image degradation: More parts can cause image degradation if color balance shifts and contrast reduced.
- Dead pixels: One or more pixels turn permanently on or off. Clusters of affected pixels interfere with the image quality and the experience.