Herein the 'meat' of this Plog:
Most Plog's outline 'Parts Used'...so, too, this one -- with some elaboration re: type's considered, and 'why', and best-vendor/source.
No 'How-To' for general PJ-design [and such are elsewhere in LL, thankfully -- both pinned and in FAQ/Wiki-offerings]. But, I will attempt to explore and re-examine/question some 'basics'...since my aim is to test/verify a variety of 'best-in-class' assumptions and/or try-out related-to-mods components.
~PANEL:
The ltn106w2-L01 will be a focus-of-attention throughout the thread -- being the star of this show.
In brief, it offers good brightness/contrast (the 'numbers' for which are meaningless...since they are all admeasured with backlights and AG and other multi-layers hurtful to our niche-application). The small optical-footprint of 9.5"X5.75" with its 1280*768 resolution results from an impressive 0.180"-square pixel-pitch.
Subjectively -- viewing a 720P movie on it, even just doing-so with only it's anemic-backlight and mirrored-AG, gives one the feeling you could reach-in with your hand and 'interact'. In short...its a gorgeous/eye-pleasing display -- I think ideal for use in a HD-PJ, and 720P is my notion of 'Best HD Resolution' for display of upconverted std.-dvd's.
This easily-stripped and unique panel should be on anyone's 'short-list' for a PJ-build -- especially if 'size-matters' for any optical/heat-related/case-design considerations.
<The datasheet here:
http://www.beyondinfinite.com/lcd/Library/...TN106W2-L01.pdf >
[Dimensional-drawings of panel and Genesis-controller -- courtesy of ozstang65:
http://users.bigpond.com/doyle.tlsg/106/BarePanelDims.jpghttp://users.bigpond.com/doyle.tlsg/106/ControllerDims.jpg]
Drawbacks: A refresh-rate of only 35ms may off-put some Gamers, and 256k-colors doesn't-compare to 16.7M -- however, HT-PC-use and Movie-play both have tested-well for me, and compare favorably with panels of much-higher Spec...
~CONTROLLERS:
So far, I've only hands-on with the Genesis/GM5221-board.
<The datasheet here:
http://www.datasheetarchive.com/search.php...;ExactDS=Starts >
My initial-review here:
http://www.lumenlab.com/forums/index.php?s...mp;#entry208836One of three (or possibly, four) known/inexpensive controllers [they range from 50.-80., the Genesis about 60.], it offers inputs of: TV/Composite/S-Video/VGA/Component and (last, but not least!) DVI. [I prefer dvi-to-PJ as a 'best-choice', anyway ... analog being just 'so 1980's', and more-than-one long-cable to PJ is unnecessary).]
Another contender was the RTD2523B-board (of both the first&second group-buys), offering TV/Composite/S-Video/VGA and DVI...but no Component-input. This chipset 'should' have easily allowed for SoG component>vga-input (but may not -- presumably because it is 'locked' in its flash/'firmware' -- and if-functional, the displayed-image in vga-Native would likely stretch to the full 768, rather than scale in blackbar). Like the Genesis [only 'more-so'], this board also suffers from varied 'deficiencies in its flashing/ROM', and we hope to encourage an update shortly. If that proves 'impossible', then Izzotek has same-model controller (and theirs may have been properly-flashed before having been offered to the public). It many be possible to 'dump' one of these proper-flash's for re-install on ours. In meantime, there are failures in the display in Native via vga/dvi...depending on 1st or 2nd batch-updates, as tested.
<The datasheet here:
http://www.086ic.cn/uploads/20061203_104418_RTD2523B_v10.pdf >
We are extensively reviewing both of these boards lately in:
http://www.lumenlab.com/forums/index.php?s...5551&st=840http://www.lumenlab.com/forums/index.php?s...6528&st=360The wuxga/RTD board is another board available through Carpow [70., and capable for use with wuxga/15.4-panels], but is not yet reviewed, and features only VGA/Component -- no dvi/hdmi (and, for me, 'no digital, no-interest').
There is a new, as yet untested, Genesis board available, now. More on that later...
Once there are a couple of 'known fully-functional boards' for these 'wunder-panels', we can then compare controller-chipsets for 'what actually matters' betwixt the sub-60.-boards, and make comparisons to the PQ of the 70./wuxga/RTD2533 controller in vga and Component, also.
In brief, the current flash-problems for the GM5221 are limited to HD via Component-inputs only -- 720P being spectacular, but offset on panel 5/8" to the right, and a minor-amount vertically (easy for me to correct-for, but less-so for others with common-players/receivers). And 1080i, IMO, is 'unusable' -- grossly enlarged/stretched and off-centered. Other than that, all resolutions on all inputs seem 'picture perfect', centered, and without obvious overscan -- especially-nice in Native 1280*768 via dvi/vga. So, if one can avoid the need for HD-via-Component, they are 'ready for Primetime' with the GM5221.
The RTD fares less-well, with Component-input [via vga] 'locked-out', and (with one group-buy version or the updated-second) not yet giving good-results, even with displaying Native@60Hz via vga/dvi.
All controllers have eeprom/ROM 'flashing' to mate it to LDVS (one or two-channel, with given pixel-clocking) for code determining handling of signal/frequencies/porch-values/etc. -- these often being highly panel-specific. Writing/testing such code is not 'rocket-science', nor is it irreversable (one can 'dump' it, retool [assuming access to the proprietary-software], and re-install a 'healthy-flash' via J-Tag (on some boards) or a common eeprom-reader/burner [dumping/re-flashing NOT requiring special/proprietary-software].
Click to view attachmentThe chipset must, dynamically, balance output/clocking/frequencies to obtain 'balance' of all-above, as well as perfectly-match Native/panel-parm's in-process -- or image pours-over into screen borders or we loose image-portions to an overscan [why overscan is a bad-thang]:
http://www.hkflix.com/xq/asp/infoID.27/qx/info.htmTo-date, and with all tested-boards, Component-inut is still 'at-issue' with it's values for-above frequencies. Component is locked-out as input for the RTD2523's so-far, and only works properly in 480P/i with the Genesis5221's or wuxga/RTD2533's. 720P via 5221&component is beautiful-to-behold...but offset to the right about 5/8", and off-centered vertically just-a-tad (its easy to correct these offsets using a dvd-player having X/Y-scaling/positional-control [as with my Momitsu-880DX], but popular/standard upconverting players which output only in component [and without the dvi/vga the 880DX also has, and which work-perfectly through the Genesis, btw] will just 'disappoint' most users). 1080i is thoroughly-botched, with gross-enlargement/over-scan/off-centered image [perhaps also 'correctable' by changing values/frequencies/porch-sttings in a 880DX, but I favor 720P over 1080i, anyhoo).
What's really needed for these panels is a controller featuring one of these-chipsets:
http://www.gnss.com/products/FLI5961-FLI59...962-PBR-01B.pdf or a sub-250. Kontron board, with Faroudja/HDCP-enabled and ability to 'flip'/reverse -- for control of light-direction through panel.
~TRIPLETS:
Almost any commonly-used triplet may be utilized with this small-panel, of course. For instance, I've a massive 18" Beseler Series-III EFL[457mm FL], purchased when still in the throes of 15.4"-planning. The very-thought of that opaque-projector lens protruding from a small mini-Haas inspired the 'light-cannon'/cat-coffin nicknames...
Overkill for this panel. Almost all panels 15"-or-less can make use of LL's standard-triplet, or Carpow's similarly-priced lens, or most any others favored-here. Larger-panels are a concern in choices, due FoV relative to FL...but at 10.6-diagonal, I can't imagine any optics-combo which would result in 'lost-corners' here. Throw is a consideration, however (always is). Since I now want to design for a very-small case/PJ, the 18" would only be a front-runner if I had to have considerable distance between it and screen (and small-case would be 'front-heavy' due to a 5-600mm front-fresnel distancing). More-likely, I'll mod an 11" Buhl (by increasing spacer-length between both elements and the central dual-concave) and shorten the needed FL for front-frez to 300-330. I'll need to test for it's subsequent 'throw', and lengthening-possible -- but can use common 100mm replacement-lenses, if needed.
Better than common/inexpensive triplets? Dunno, but these OP-trip's just 'look so kewl'...<g> [All that glass...!]
~Fresnels:
~~Light-Engine:
~Lamp/Ballast:
~Optics-Config:
~STRIPPING/POLARS:
As detailed in pun15her's new Plog:
http://www.lumenlab.com/forums/index.php?s...mp;#entry209818these panels set new-standards for 'stripability'...'dry', yet! <g> They should also prove interesting for experiments in complete polar-replacement...intended to improve-contrast while bumping-up delivered-lumens by finally ridding ourselves of all the many 'compromises' suffered to diffusion/WV/tacs/light-spreading layers-on-layers intended for backlighting on desktops. A thread detailing those attempts is here:
http://www.lumenlab.com/forums/index.php?s...6166&st=100I'm gathering three-sets of polarizers for testing...both within and without the fresnel/focus-field...
~CASE DESIGN:
~INPUT/RELATED-EQUIPMENT:
I've a Momitsu DVD-V880-DX, because it is the _only_ upconverting-player with full X/Y-scaling, dvi/vga/component-outputs up-to 1080i, variable-zoom in/out, full 'dial-in' frequency/porch/pre/post-adjustable (similar to Powerstrip-for-PC) unit I could find:
http://www.hkflix.com/hardware/xq/asp/pid.59/qx/details.htmThe replacement-model out now, the 888N, has some improvements -- but lacks the DX's hidden-menu/'dial-in' features.
~RELATED/10.6"-PLOGS:
elken2004/Dazzzla/Ozstang65 --
http://www.lumenlab.com/forums/index.php?s...mp;#entry210100pun15her --
http://www.lumenlab.com/forums/index.php?s...mp;#entry210125b0rna --
http://www.lumenlab.com/forums/index.php?s...mp;#entry210159ziggy_man --
http://www.lumenlab.com/forums/index.php?showtopic=17812SupraGuy --
http://www.lumenlab.com/forums/index.php?showtopic=18526-=Shiver=- --
http://www.lumenlab.com/forums/index.php?s...mp;#entry210686cpsubrian --
http://www.lumenlab.com/forums/index.php?s...=15772&st=0iPO's --
http://www.lumenlab.com/forums/index.php?s...mp;#entry213419shadowhawk2020 --
http://www.lumenlab.com/forums/index.php?s...mp;#entry216829PEGASUS --
http://www.lumenlab.com/forums/index.php?s...c=19458&hl=conker --
http://www.lumenlab.com/forums/index.php?s...c=19476&hl=Sinner7 --
http://www.lumenlab.com/forums/index.php?s...st&p=220212kariya762 --
http://www.lumenlab.com/forums/index.php?s...c=19334&hl=EpitaphILIP --
http://www.lumenlab.com/forums/index.php?s...c=19846&hl=geckostudios --
http://www.lumenlab.com/forums/index.php?s...mp;#entry223351SinAngel --
http://www.lumenlab.com/forums/index.php?s...mp;#entry225020Delphins --
http://diy.delfins.id.lv/forums/index.php?...p;st=0#entry497Click to view attachment"I have a great vision that one day this page will actually be finished and complete. Please share in this delusion."
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