Originally Posted by chicolom
I've been trying to find this out myself. Here is what I've found out by googling.
IPS panels are popular for monitors where accuracy is important for things like photo editing. Samsung doesn't use IPS panels, but Panasonic and LG do. Samsung uses VA types, along with Sony and Toshiba. In order of contrast ratios for VA panels (lower number being better) it goes:
2. UV2A (U-MVA)
S-PVA is usually preferable, although it can have slower pixel response than some other panel types.
For the EH line, the 32 and 40 inch come in S-PVA (Samsung), S-MVA, and A-MVA types - the latter two being made by Chei Mei and AUO. I'm not sure about the 42 inch panels. I know the 37 inch EH uses only AUO or Chei Mei panels as Samsung and Sony's joint S-PVA panel supplier, S-LCD, doesn't manufacture panels in that size. Same for the 39 inch UN39EH5003.
If you can find a "Version" number that can help. It's usually a four digit code, on a sticker on the side of the TV.
Anything starting with Cxxx is Chei Mei. In the past, samsung has used SQxx, SSxx, and SXxx to label their own S-PVA panels. These are called version "S" panels, and are also sometimes indicated by a Large "S
" to the right of the label. Version "A" panels, are made by AUO, and have the labels ACxx, AAxx, and BAxx.
So going of past labels Cxxx/Bxxx = Chei Mei, Axxx = AUO, and Sxxx = Samsung. I'm not sure if the new versions are different, as I can't find many pictures of them.
Probably the best way to find out the panel is to get into the TV's service menu.
To enter the service menu:
(TV in Standby Mode)Mute
(in rapid succession).(UK versions, Press info-menu-mute-power)
Look under "Option" or "Type".
Search for your model's "inch number", and look at the letter immediately following
the "inch number"
R:AUO (au optronics)
So a UN42EH5000 with a samsung panel, would like this: 42A
Exit with power off on remote.
Here are some archived pics of Samsung labels, and the service menu: