Recent improvements in projector technologies have been huge. While LCD and DLP types steadily gained popularity in the consumer projector segment because of their unique advantages in price and performance, new models with improved internal mechanisms are sprouting to pick up an edge in the market.
DLP (Digital Light Processing)
A digital display solution that uses Digital Mirror Device chip with thousands of micro mirrors that modulate light from the lamp, DLPs are known to purge “screen door” effects on the projected image usually seen on LCDs. DLPs are considered to have higher quality video output. Recent developments to enhance color management are geared towards improved DLP color reproduction.
LCD (Liquid Crystal Display)
LCDs or 3LCDs use three red/green/blue LCD glass panels. The RGB panels modulate light that produces the projected image. LCDs produce brighter images than DLPs and are generally used for presentations even in well-lit rooms. Sharper images from LCDs can actually be unflattering for videos which tend to be pixilated. The trio panels make LCDs a bit bulky than DLPs. New LCD technologies tend to compete with portability and video enhancements of DLPs.
LCoS (Liquid Crystal on Silicon)
LCoS (Liquid Crystal on Silicon), the third kid in the major block has become a popular hybrid of LCD and DLP with improved contrast levels over LCDs and crispier images over DLPs. Combining liquid crystals and reflective mirrors make LCoS more expensive than LCD and DLP. LCoS reduces gaps between pixels to produce richer images as compared with the other two.
SXRD (Silicon X-Tal Reflective Display)
Developed by Sony for its new line of projectors, SXRD technology takes LCoS on the next level with an increased pixel density and improvement in inter-pixel gaps. SXRD solves the grey effect on LCoS projectors and advances a new device that vertically aligns liquid crystal materials to achieve higher optical properties and contrast that are previously unachievable in LCD, DLP or LCoS projectors.
D-ILA (Direct-Drive Image Light Amplification)
Optimized for new JVC projectors, D-ILA technology is yet another LCoS innovation with an “image amplifier” design that is able to produce 2048x1536-pixel HDTV performance. D-ILA has its own optical engine to provide full benefits of high-resolution videos from players or PCs while addressing the previous black level issues of LCoS.
4LCD
An innovation of conventional three RGB glass panel LCD systems, 4LCD is Sanyo’s latest projector optical engine which includes a new color control device that controls the amount of yellow light in the projected image to produce higher luminosity and improved color accuracy. 4LCD can generate clearer images and videos that was previously impossible even with high brightness 3LCD projectors.
New generation of 4K projectors on top-of-the-line
Costing millions of pesos and maximized for a massive 50-foot screen, posted at the current highest-end in the fixed-installed projector block are the latest generation of 4K projectors rated at a whopping 4096x2400 resolution. Wow! That’s more than four folds that the most expensive 1080p HDTV can display. You might wonder how Anne Hathaway will look on this enormous screen.
DLP projectors now use LED technology
Promising to transform the projector landscape, new Light Emitting Diode (LED) technologies are now integrated in DLP projectors that will eventually do away with replacement lamp maintenance costs. Mainstream DLP projectors that are widely used are built with digital micro mirrors to modulate light and project images through the lens require lamps that die in a matter of time. Previous LCD projectors that use three legacy panels which are still available require replacement lamps as well. LED-based projectors will also consume less power and run cooler than lamp-based types.
The coming of projector widgets
We are now seeing the dawn of ultra-compact “miniature projectors” that have built-in single-mode RGB lasers to provide LCD-like graphical presentations from a mobile device. These petite gizmos allow users to carry big screens right in their pockets. We might see in the long run not only in mainstream DLP, LCD and LCOS projectors that will hang on to this new technology, but in handheld portable devices as well.
Going Wireless
With rapid changes in how presentations are created for a specific audience, wireless functionality (Wi-Fi and Bluetooth) has become a standard feature on new projectors. Making it easier to switch between multiple sources, wireless projectors also gives more presentation flexibility and mobility for users.
1 comment:
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