[visionlist] LaserVue (possible CRT replacement)

[Bosco Tjan]

I guess the real problem for us who do vision research is not the type  
of display technology, but that all modern displays are "smart".   
There are considerable amount of input processing built in to the  
circuitry to compensate for the specific deficits of a particular  
display technology (e.g. the various tricks to reduce the latency of  
an LCD display) and to "optimize" the image for the targeted markets  
(which do not include us).  The algorithm defined in the firmware can  
be changed for every revision at minimal cost.  Manufacturers guard  
these algorithms as their trade secret nor do they provide a "dump"  
display mode.  It is practically impossible to infer the algorithm of  
a given display with sufficient details and to keep track of the  
changes for each revision.

Bosco Tjan
----

On Nov 3, 2009, at 8:22 AM, Daniel Reetz wrote:

> On Tue, Nov 3, 2009 at 3:35 AM, William Simpson
> <william.simpson at plymouth.ac.uk> wrote:
>> I found this on LaserVue:
>> http://www.laservuetv.com/pdf/L65A90_specsheet.pdf
>>
>> Accepts conventional computer inputs (VGA etc -- see back panel)  
>> but there's no VGA connector -- how does that work??
>
> When the back panel says "VGA" they are referring to the input
> resolution(s) that the display is compatible with, not the connector.
> You can send DVI over an HDMI cable, so it's actually digitally
> addressable. That's pretty nice. Check page 20 of the user manual
> here:
>
> http://www.mitsubishi-tv.com/pdf/LaserVue_OG.pdf
>
> The timing information on that page is not promising. Quote: "Your
> Mitsubishi TV can display resolutions from standard VGA (640 x 480)
> through 1920 x 1080 signals at a refresh rate of 60 Hz." I'm sure
> that's not a native limitation of the technology, but it sounds like a
> hard limit of this particular display to me. It's not a limitation of
> the HDMI specification (CEA-861-D ) either, there are 100hz refresh
> rates in there.
>
> I'm calling the local home theater places to see if anyone has one
> that I can record with my high-speed camera.
>
> Regards, nice find...
> Daniel Reetz
>
>> Bill
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