Question: What Is A Backlight Bleed?

Is backlight bleed normal?

Backlight bleeding occurs when areas of light appear along the edges or corners of a display when viewing dark screens in low light conditions. This light leakage should only be visible when viewing dark screens in a dark room. You should not notice this effect during normal use in a room with some ambient light.

What is backlight bleed on monitors?

Backlight bleeding most commonly occurs when this light is not 100% blocked, allowing excess light to “bleed” around the edges of the LCD panel. This backlight bleeding issue leaves spots of lighter areas on a dark or black background.

How do you know if you have backlight bleeding?

To test your display for backlight bleed (also referred to as just ‘light bleed’), play a full-screen video or open a picture that’s pitch-black. The light that you see around the edges of the screen or in the corners is backlight bleed.

What causes screen bleeding?

When the LCD screen isn’t completely blocking the backlight, some light leaks through, causing the screen bleeding. This can happen if the LCD screen isn’t perfectly adhered to its frame. This allows light from the CCFL light to leak in between the crack, and appear on the front of the LCD screen.

Will backlight bleeding go away?

Yes, some types of backlight bleed can go away by itself. This is mostly pressure-related backlight bleed. If the front panel is uneven, panel tightened too hard into the bezel etc, then the pressure can cause backlight bleed. This can be an error from manufacturing level, or from transport and storage.

Can you fix backlight bleed?

There are some unconventional methods you can try to reduce the backlight bleeding yourself: Dismantle the display and apply electrical tape around the edges of the LCD. Mildly loosen the screws at the rear of the display. Reduce the screen brightness until backlight bleeding is unnoticeable.

Is backlight bleeding a big deal?

Backlight bleed is bright light on the eges around the screen, it doesnt affect anything but the edges. If the bezel doesnt cover it up its bleed. IPS glow, clouding, flashlighting are different. Yes, ubercake is correct, IPS monitors shouldnt be this bad.

Is backlight bleed covered under warranty?

Re: Is screen bleeding covered by warranty? If yes then the LCD backlight is bleeding (can be caused by the screws being too tight on the LCD assembly or gaps on the LCD panel / LCD bezel). In this case, I recommend you contact the lenovo helpdesk as this should be covered under the warranty.

What causes LCD backlight failure?

The Most Common Causes of Display Failures

The LCD screen – LCD failure can occur from drop damage, water damage, or it can simply be the result of a defective part. The backlight filter – When a short in the backlight circuit occurs, the thin wire inside the filter breaks, severing power from the backlight LEDs.