User Manual BDL4771V

Mura has been around since the introduction of LCD technology and with screens getting bigger and in operation 24/7, many displays are running in low light conditions. This all adds to the possibility of Mura affecting displays.

6.7.1.HOW TO SPOT MURA

There are many symptoms of Mura and also multiple causes. Several of these are listed below:

Impurities or foreign particles in the crystal matrix

Uneven distribution of LCD matrix during manufacturing

Non-uniform luminance distribution of the backlight

Panel assembly induced stress

Flaws within the LCD cells

Thermal induced stress - high temperature operation over long periods of time

6.7.2.HOW TO AVOID MURA

Although we can not guarantee the complete eradication of Mura every time, in general the appearance of Mura can be minimized by these methods:

Lower the backlight brightness

Use a screen saver

Reduce the ambient temperature around the unit

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Philips BDL4771V user manual HOW to Spot Mura, HOW to Avoid Mura