I don't think upgrade kits will be ever available. Its too dangerous for the average Joe to open and modify a LCD monitor. For example, the back light lamps operate on high voltage up to 2000V. Some monitors have the low voltage power supply integrated so that you might get in contact with the mains voltage.
This is not a good idea I'd say.
But for those who have the knowledge it is in principle possible to 'upgrade' an existing panel. Actually, you can do that today. But you have to build the electronis yourself. Whether it is feasible depends however on the panel itself, the driver electronics and the method which is used to over/under drive the pixel. You mentioned, FFD, but thats only one method (Mitsubishi).
Samsung digged out an overdriving scheme which they call 'DCC = dynamic capacitance compensation' .
At last years SID (society of information displays) conference they presented >>>'the fastest TN TFT-LCD in the world'<<<< (rise time 2.6ms, fall time 5.8ms as the slowest gray response). They've used however a specially designed TN panel. On the other hand they say, DCC is applicable to existing panels as well.
Here's the cost analysis and conclusion of the paper:
4.3.3 Cost Analysis
The DCC scheme is very simple and thus, can be easily integrated
into existing ICs such as timing controllers, scalers, or graphics
chipsets. The frame memory requires 10 Mb of storage space for
XGA. Although there is the Merged-DRAM Logic (MDL) solution
available, using an external memory is more cost-effective. One 16
Mb SDRAM, which costs below $1 currently, is enough for up to
WXGA.
Since DCC is purely digital, it can be applied to any existing product
immediately to improve the inter-gray RT. It is also risk-free: it
does not require a large investment or change of panel structure. It
is completely independent of other properties, such as viewing angle,
brightness, contrast ratio, flicker, crosstalk, and so forth. In
other words, fast switching can be achieved without any tradeoff.
5. Conclusion
Because of dynamic capacitance of LCs, the raw speed of LC material
itself is not enough in achieving inter-gray RT < 1 frame. A
novel driving scheme, DCC enables LCDs to respond within one
frame for all gray levels. We have developed the fastest TN TFTLCD
by employing DCC. All of the inter-gray response times were
less than 10 ms. DCC can be applied to other kind of LCD modes
as well, to enhance the inter-gray switching speed. DCC requires
no trade-off and its implementation cost is minimal.
My comment:
If everything is so easy and immediately applicable why don't we have it already? DCC is 10years old.
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