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.

    Is this normal for a notebook display?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by B.Gen.Jack.O.Neill, Aug 4, 2009.

  1. B.Gen.Jack.O.Neill

    B.Gen.Jack.O.Neill Notebook Enthusiast

    Reputations:
    39
    Messages:
    48
    Likes Received:
    0
    Trophy Points:
    15
    Hi, first please exucuse my english. I have bought my first notebook, KHLB2 from Compal. It has glossy 15.6 inch screen. I know that its display is not the best one, but should be at least mid-range. But, if I let the display to show something dark, or black colour only, there is white zone below the center of the screen, and inverted colour in the upper corners of the screen. How much it is bad depends on the light in the room. For example in the night, it is very strong, so strong that even in windows, upper corners of the screen are inverted from one eye view. I mean with my left eye right corner is inverted, but with my left eye its OK. Basically what I see could be seen on this video in time 0:28 http://www.youtube.com/watch?v=zCV3_Tz6gSg&feature=related. But I watched lots of videos and observed photos of KHLB2 screen at notebookcheck http://www.notebookcheck.net/Review-mySN-MG6-Notebook-Compal-HLB2.16342.0.html , but this "effect" is not shown on these pictures and videos. So, I just want to ask, is this normall, or is there something wrong? Thanks a lot.
     
  2. bigredal2007

    bigredal2007 Notebook Enthusiast

    Reputations:
    2
    Messages:
    28
    Likes Received:
    0
    Trophy Points:
    5
    it's light leakage, not sure if its a warranty issue or not, sorry
     
  3. B.Gen.Jack.O.Neill

    B.Gen.Jack.O.Neill Notebook Enthusiast

    Reputations:
    39
    Messages:
    48
    Likes Received:
    0
    Trophy Points:
    15
    So, it is not normall? I kind of thought this is normall for notebook LCD. Are you sure its not viewing-angle related? Becouse when I move my head more toward the keyboard, that white strip dissapear but upper colour become much more negated. I mean, I thought that light leakage is backlight related, and doesent change with the way you look at the screen.
     
  4. bigredal2007

    bigredal2007 Notebook Enthusiast

    Reputations:
    2
    Messages:
    28
    Likes Received:
    0
    Trophy Points:
    5
    not sure what you're talking about with the colour but the youtube vid you posted is very bad light leakage, every Laptop LCD screen I've had has had some light leakage, but never half the screen like that one.
     
  5. AuroraAlpha

    AuroraAlpha Notebook Consultant

    Reputations:
    106
    Messages:
    269
    Likes Received:
    0
    Trophy Points:
    30
    Some light leakage is normal, but not that much. Call your custumer support and complain until they fix it for you.
     
  6. B.Gen.Jack.O.Neill

    B.Gen.Jack.O.Neill Notebook Enthusiast

    Reputations:
    39
    Messages:
    48
    Likes Received:
    0
    Trophy Points:
    15
    Well, I am bad in technical english, so I try to explain what I think. So, what I understand, light leakage is something like hole beneath screen, and causes the light from backlight to light away from the back of the LCD. But every LCD display becomes ultra-bright when viewed from top of the screen, and negatives the image if viewed from bottom. So what I think of is, that the upper corners of that LCD on that youtube video are negative becouse of viewing angles (and as I understand it is not light leakage when the image is negative). And the same thing is the bottom light area, which is (I suppose) brighter becouse the angle from which the camera "is looking" to the bottom of the screen is bigger, it is not pure 90 degrees. The camera is facing the centre of the screen (which is pure black), and if the camera would move down the bottom of the screen I think that white stripe would dissapear, but the upper corners would become much more negatived. Notice the rounded shape of the light area on that video, should not be light leakage even, not rounded?
    P.S: I dont really know if in english is used word negative from photography, which I used in my "report". This is what I mean copied from english review on some different notebook. " like shading or respectively image alterations when looking from below or over-shining when looking from above."

    BTW Look at this video, its new macbook, which I supose has LED backlight, and I dont think this is light leakage, but it is massive! Time 0:25. http://www.youtube.com/watch?v=JWTCCiuKzzc