Originally Posted by eat meat
the chips(1140x912) in those leds are pico chips ,with the mirrors set to where there was a side there is now a corner(turned a 1/8 ),there is no wobble ,that uses a secondary mirror any ways(takes a lot of space is only used in rear pj tv,s )
This is a wide ranging complicated subject with hard-to-find information.
The key requirement is that brighter, more efficient DLP was needed for both pico projectors AND 3D.
This has occurred! Wikipedia calls this "advancements" for pico projectors:
"In 2011, Texas Instruments DLP announced improved chipsets that enable brighter images. The chipsets are designed to enhance image brightness without increasing power usage for both WVGA (native DVD resolution) devices, such as mobile phones, and VGA devices, such as digital cameras and camcorders. The chipsets have the ability to project an image up to 50” on any surface in optimum lighting conditions, the tiny projection chip requires very little space and is virtually undetected in a device’s overall form factor. With advancements in size and performance, the TI DLP Pico chipset supplies big picture experiences with contemporary handsets."https://en.wikipedia.org/wiki/Handheld_projector
I did a IXQuick search and found only AVS a source for the non-standard 1140 resolution in an LG projector:http://www.avsforum.com/avs-vb/showt...5#post20956125
Notice that we only learn of this stuff through inadvertent leaks - through press or support engineers. Only about 25% of the professional reviewers catch the lack of 1:1 mapping (this was the major finding of my and Cine4home 9500 reviews).
To its credit all three display forums here at AVS have caught the lack of 1:1 mapping in DLP based displays: rear projection, pico/mobile projection and under $3K and over $3K front projector forums.
Here is the rear projector forum thread:http://www.avsforum.com/avs-vb/showthread.php?t=1397654
Note: AVS pico/mobile needs its own forum
The initial evidence indicates there is a trade-off between 1:1 mapping and brightness. That is, allow the DLP to generate a brighter image, but quietly loose the sharp 1:1 pixel mapping.
TI sure has been busy increasing projector brightness for 3D and pico projectors. We should realize that. For myself I would never purchase any DLP projector which doesn't have sharp text or video as its been the signature trademark of the technology!
I'm going to re-read the Amazon projector reviews and see how many consumers indirectly describe the loss of 1:1 pixel mapping. Actually it manifests itself in the lack of comments on the text being sharp!