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Does brightness on the screen of the MBP drops when they get older?

H

hajime

macrumors G3
Original poster
Jul 23, 2007
8,173
1,414
Hello, in the past I set the brightness of my MBP 2010 17" to about 3 steps down. Recently, even I turned the brightness of my MBP to the max, I often feel that it is a bit dim. Does the screen brightness drop over time?
 
hajime said:
Hello, in the past I set the brightness of my MBP 2010 17" to about 3 steps down. Recently, even I turned the brightness of my MBP to the max, I often feel that it is a bit dim. Does the screen brightness drop over time?
Click to expand...

All MacBook Pros since the 2008 unibody redesign use LED backlights. These backlights should not lose any brightness over time. My 2009 15" MBP seems just as bright as it's ever been too. So this might be a problem with your specific sample. Not much you can do about it besides replacing the screen (assuming you already tried a PRAM reset, though I'm not confident that it would help).
 
No, since it's an LED backlight. Apple's displays are getting brighter with each release so if you've used any newer displays perhaps it's altered your perception.

Environmental light has a huge impact on how bright a display seems. During the day I use max brightness and at night usually 70%.
 
Poki said:
These backlights should not lose any brightness over time.
Click to expand...
That's not true. LED backlight do slowly lose brightness over time.

I see the same thing with my 2011 MBP but it doesn't bother me that much unless it's very sunny.
 
hajime said:
Hello, in the past I set the brightness of my MBP 2010 17" to about 3 steps down. Recently, even I turned the brightness of my MBP to the max, I often feel that it is a bit dim. Does the screen brightness drop over time?
Click to expand...
All LED panels will drift overtime. That's why they sell monitor calibrators.
3 steps down isn't a very accurate way to control the brightness.
 
Apple fanboy said:
Nope. A display will change overtime. The only way to know it's the same is to measure it with a device called a colorimeter.
You can't even trust your eyes.
Click to expand...

Agree. I use a colorimeter to calibrate the brightness and colors every month or two I find they do drift and there seems to be no predictable pattern. I am pretty sure sometimes it takes out part of the adjustment it made during the last calibration.
 
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