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Posted by Rita Berkowitz on 11/07/07 22:38
Bob Myers wrote:
>>>> I'll go by my hands on real world findings till an authoritative
>>>> source proves me wrong.
>>>
>>> Didn't take all that long, did it?
>>
>> Nope, but neither of these sites even remotely support your
>> assertions.
>
> You asserted that the color filter was a layer between the backlight
> and the LCD panel (cell) proper; your exact words were:
Ah, yes they are in the light path.
> "I've split apart many LCD panels and I've found the color
> correction filters in between."
>
> Please identify the "color correction filters" in any of the process
> or panel/module diagrams shown.
LOL! Me thinks you are just trying to string me along. For someone that
claims to have been in the business for 20-years surely couldn't get this
clueless. Anyway, for the sake of the hair you want to split it's built
into the backlight assembly.
>> never was in dispute that an LCD panel is basically a filter with a
>> polarizer on both sides. The issue that you conveniently dance
>> around is the backlight assembly. The second website stops short of
>> what goes into making the backlight. This is the crux of your
>> misunderstanding since you fail to want to admit the LCD array is
>> highly dependant on a corrected light
>> source. Maybe the hair you are trying to split is manufactured in
>> the backlight assembly? Either way, there *ARE* corrective filters
>> in the light path between the backlight and LCD array.
>
> Nope. There are diffusing layers, and there very often are
> what are known as "brightness enhancement" films, which basically
> serve to redirect the light forward. There's then a polarizing film
> which is bonded to the "lower" substrate of the panel itself. Please
> find me a "color corrective" filter in any of that. What is it you
> think that this mythical "color corrective" filter DOES, exactly?
Please provide an accurate and concise diagram and I will.
Rita
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