I just bought the Aspire 7520 but when i have a all black screen there is a white haze across the bottom half of the screen being brightest at the bottom and fading away towards the centre , Is it supposed to be like that or have i got a faulty one ?
Acer LCD light bleed ?
- Thread starter Ice Tea
- Start date
Soldato
- Joined
- 18 Oct 2002
- Posts
- 9,264
The entire surface of an LCD is backlit from behind by a light source and the LCD blocks out the light that is not needed. Backlight bleeding occurs when this light is not 100% blocked allowing some light to "bleed" through the LCD causing spots of lighter areas on a dark or black background.
Almost all LCDs suffer at least a small amount of backlight bleed because the opacity of LCD panels is not enough to block all light. Normally, this is just around the edges and doesn't impact the user at all.
In some instances, the light leakage can creep onto the main screen. Google "Dell 2005FPW backlight bleed" to see examples of this.
If its as bad as the Dell, then demand a replacement from Acer.
Almost all LCDs suffer at least a small amount of backlight bleed because the opacity of LCD panels is not enough to block all light. Normally, this is just around the edges and doesn't impact the user at all.
In some instances, the light leakage can creep onto the main screen. Google "Dell 2005FPW backlight bleed" to see examples of this.
If its as bad as the Dell, then demand a replacement from Acer.