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Part Number: DLP660TE
Am I right in thinking that this chip when used for a 4k UHD projector produces two overlaid images of 2716x1528 rather than an absolute rendering of 3840x2160 ?
Projection solutions utilizing the DLP 4K UHD chipset deliver 8.3 million pixels to the screen (3840x2160) with over 4 million micromirrors (2716x1528) and 2-position optical actuator, bringing full 4K UHD resolution to the screen by displaying two distinct and unique pixels during every frame. It meets the Consumer Technology Association (CTA) 4K standard and is classified as 4K UHD.
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In reply to Anshul Jain:
Thanks for the reply though I'm a little confused. How does two overlapping images of 2716x1528 equate to a resolution of 3840x2160 ? Surely it's just two sets of 2716x1528.
When you say two distinct and unique pixels, don't the pixels overlap and so aren't distinct ?
I appreciate it meets the definition of the CTA as drafted.
Thanks for your help in clarifying my understanding.
In reply to Dave Howard:
I get 2x2716x1528 is a similar number to 3840x2160 but not the same number, so don't see how you can equate the two.
Don't the two pixels which are shown overlap ?
Thanks for explaining that. So it works like JVC's eShift does ?
Dave, It may be similar in that it uses an optical device to shift a single imager pixel to create two unique displayed pixels. What is different is the resolution displayed: To my knowledge, JVC only uses 1080p panels in all of their "e-shift" products. So, the JVC projectors have 1920 x 1080 x 2 positions = 4.15 Million Displayed Pixels (Half UHD). The TI DLP-based solutions use a DMD specifically designed for this application; that is the reason for the somewhat unusual resolution of 2516 x 1528 for the DMD. The DLP based projectors have 2716 x 1528 x 2 positions = 8.3 Million Displayed Pixels (Full UHD). So, while it is similar in that it uses an optical device to create two unique displayed pixels from one imager pixel; the TI DLP solutions have twice as many addressable pixels (Full UHD). Regards, Gary
In reply to Gary S:
I'm still struggling a little, just when I think I understand it. Why do you say 'two unique displayed pixels' if the pixels are overlaid on top of the other presumably by half a pixel diagonally ?
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