If you wish to rotate your LCD screen there are a number of factors to consider.


Commercial or domestic

Some screens just were not designed to run in portrait.

Domestic televisions for instance are not designed to run in portrait and doing so would usually void the warranty.

The reason fro this is due to the thermal management design, as the units are vented in a way to vent out the top of the screen.

Rotating them can trap heat and significantly reduce the lifespan of the screen.
Another factor with domestic televisions is  they often have asymmetrical bezels and look strange in portrait because of this.


Most commercial displays (excluding hospitality series) are designed to either operate in portrait or landscape. However you should check the manual of the specific model you are considering running in portrait.


Fans

Some panels have different fan settings to operate in portrait, if you screen has nay options to specify this ensure you do.

Note some panels require you change the on screen display (OSD) to be in portrait and the fans will automatically adjust. 


Clockwise or anti-clockwise

Typically screens will be designed to rotate one way and not both, this again is due to the thermal management design.

It's best to always check the manual for your specific model however in our experience the below table shows the most common configuration for popular brands.


BrandRotation
NECClockwise
SamsungClockwise
Sharp Either - consult manual
LGClockwise
PanasonicClockwise
Phillips Either - consult manual


Philips Rotation per model

PHILIPSBDL3230QLDo not rotate
PHILIPSBDL4330QLDo not rotate
PHILIPSBDL4830QLDo not rotate
PHILIPSBDL5530QLDo not rotate
PHILIPS65BDL3000QDo not rotate
PHILIPS32BDL4050DCounter-Clockwise
PHILIPS43BDL4050DCounter-Clockwise
PHILIPS55BDL4050DCounter-Clockwise
PHILIPS65BDL4050DCounter-Clockwise
PHILIPSBDL3260ELClockwise
PHILIPSBDL4270ELClockwise
PHILIPSBDL4970ELClockwise
PHILIPSBDL5570ELClockwise
PHILIPSBDL6570ELClockwise
PHILIPSBDL4290VLClockwise
PHILIPSBDL4990VLClockwise
PHILIPSBDL5590VLClockwise
PHILIPSBDL4780VHClockwise
PHILIPS75BDL3000ULandscape only
PHILIPSBDL8470QUClockwise
PHILIPSBDL8470EUClockwise
PHILIPSBDL9870EUClockwise
PHILIPS43BDL4051TCounter-Clockwise
PHILIPS55BDL4051TCounter-Clockwise
PHILIPS65BDL3010TCounter-Clockwise
PHILIPS75BDL3010TCounter-Clockwise
PHILIPSBDL4777XLCounter-Clockwise
PHILIPSBDL4777XHCounter-Clockwise
PHILIPSBDL4988XLCounter-Clockwise
PHILIPSBDL5588XLCounter-Clockwise
PHILIPSBDL5588XHCounter-Clockwise
PHILIPS42BDL5055PClockwise
PHILIPS42BDL5057PClockwise
PHILIPS49BDL5055PClockwise
PHILIPS49BDL5057PClockwise
PHILIPS55BDL5055PClockwise
PHILIPS55BDL5057PClockwise


Sharp Rotation per Model

SHARPPN-R903Counter-Clockwise
SHARPPN-R703Counter-Clockwise
SHARPPN-R603Counter-Clockwise
SHARPPNU553Counter-Clockwise
SHARPPNU473Counter-Clockwise
SHARPPN-Y475Counter-Clockwise
SHARPPN-E802Clockwise
SHARPPN-E702Clockwise
SHARPPN-E602Clockwise
SHARPPN-H801Counter-Clockwise
SHARPPN-H701Counter-Clockwise
SHARPPN-A601Clockwise
SHARPLL-S201AClockwise
SHARPPN-Y556Counter-Clockwise
SHARPPN-Y496Counter-Clockwise
SHARPPN-Y436Counter-Clockwise
SHARPPN-Y326Counter-Clockwise