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Anyone Recognise LC320EUD-SCA1 32" Full-HD 120Hz LED Pa

 
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newcoppiceman



Joined: 15 Jun 2009
Posts: 13
Location: Woking, Surrey UK

PostPosted: Thu Sep 22, 2011 4:22 am    Post subject: Anyone Recognise LC320EUD-SCA1 32" Full-HD 120Hz LED Pa Reply with quote

I've embarked on a project to build an HD picture monitor (not a TV - no audio circuits; no tuners) and settled on the LC320EUD-SCA1 panel manufactured by LG Display Co Ltd.

I've now acquired one of these panels and studied - and more-or-less understood - its datasheet.

It would be helpful to know in which product(s) this panel was used. Its design was finalised in Feb 2010 so they must be recent or current. As it uses LED backlighting, is full-HD (1920 x 1080 resolution) and 100/120Hz refresh rate there can't be that many candidates.

So, does anyone recognise this panel number?

The panel has two boards - the LED controller operates at 24V and has a pin for on/off and another for PWM-control of backlight brightness (so nothing too clever there).

The T-Con (timing controller) board receives digital video, four pixels at a time, via 4 channels of LVDS, each 5 bits-and-a-clock wide. The clocks drive PLLs producing 7 sampling points per clock cycle which coincide with the 7 data bits sent on each of the 5 lines during each clock cycle. Thus 35 bits are available to be written to the board's memory for each pixel - 30 of these are used for 10-bit RGB data.

I suspect the board sends only 8-bit RGB to the source (as in FET) driver circuit (via mini-LVDS) after the 10-bit RGB data it receives has been dithered down.
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