Is it possible to rewrite factory calibration of LCD panels? I am not talking about buying a Spyder 4 or X-Rite calibration device and generating a software lookup table at the OS, or graphics card levels but the actual internal calibration of the panel so I could say make the intensity response follow some curve other then a standard gamma curve. Do any LCD panel manufactures do custom calibrations on small orders (300 < X < 1000)? I know high end graphics monitors like those from Ezio, and NEC allow for custom intensity response curves but I am looking to use more of a tablet size high res LCD panel.
Redoing the factory calibration of LCD panels
displaylcdoled
Best Answer
On most LCD screens there is no calibration at all. As the background LED is manufactured by a one manufacturer, the LCD manufacturer (just the LED panel without back-light) is generated by another. Since the LCD manufacturer doesn't know which LEDs are going to be used, pre-calibration is impossible. If you need exact colors it would be a good idea to purchase a panel with a built in driver that has some sort of color correction mechanism or you will have to write one yourself on the MCU/CPU side.
Even if you do find an LCD panel that has a built in driver that support calibration (3x4 matrix, 2D functions or even a 3D LUT engine) you should generate the calibration data with a colorimator (like x-rite or spyder). Doing this by the naked eye is quite hard (impossible??)
And one last thing, if it is a tablet you are after, both Android & iOS has color calibration support and they can be calibrated using a colorimator.