The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    Bulb - Decrease brightness to prolong life?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by Sulk, Mar 25, 2009.

  1. Sulk

    Sulk Notebook Guru

    Reputations:
    0
    Messages:
    52
    Likes Received:
    0
    Trophy Points:
    15
    I've read somewhere in the forums before that when you lower the brightness of the laptop's display it doesn't really lessen the light from the bulb but it will only decrease the refresh rate. How true is this? I'm asking this because I want to prolong the laptop's bulb as soon as I can.
     
    Sulk, Mar 25, 2009
    #1
  2. Bog

    Bog Losing it...

    Reputations:
    4,018
    Messages:
    6,046
    Likes Received:
    7
    Trophy Points:
    206
    The refresh rate has nothing to do with the brightness, given that it is the number of times per second the graphics card renders what is on your screen (typical laptop screens have a refresh rate of about 60Hz).
     
    Bog, Mar 26, 2009
    #2
  3. marconi

    marconi Notebook Consultant

    Reputations:
    38
    Messages:
    115
    Likes Received:
    0
    Trophy Points:
    30
    Of all the laptops I've worked on..
    The Lamp is actually turned down in brightness.
    This will definitely increase its life as well as a longer battery time.
     
    marconi, Mar 26, 2009
    #3
  4. MidnightSun

    MidnightSun Emodicon

    Reputations:
    6,668
    Messages:
    8,224
    Likes Received:
    231
    Trophy Points:
    231
    The backlight decreases in brightness if you decrease the brightness of the display. This is true for CCFL displays.

    In LED displays, though, I have read that some displays do decrease the rate they refresh to simulate a lower brightness, while keeping the backlight at the same brightness. I don't know that much about displays, so I'm not certain that is the case. However, LED displays do not suffer from reduced brightness over time, so you don't really have to worry about dimming your display to prolong its life if you have an LED-backlit display.
     
    MidnightSun, Mar 26, 2009
    #4