Bright stripe on LCD display

This is a ~ 4 year old HP Pavilion laptop with LCD display.

There is a bright vertical area on the left end of the display that is incongruous with the rest of the display. It is only on the left end.

formatting link

This image also shows the lighter central area of the display which is an artifact of just viewing it on-center (or nearly). This phenomenon can be ignored.

Is the stripe due to LCD problem? Or...?

Thanks.

Reply to
DaveC
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It is such a terrible photograph that it looks mostly like a reflection of something white you left on your desk off bottom right. It doesn't look abrupt enough to be an LCD connection defect which tends to give very sharp linear errors on bit/byte/word boundaries.

Looks to me more like a physical fault with the backlighting optics. An impression heightened by a dark ridge to the RHS of the brighter patch.

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Regards, 
Martin Brown
Reply to
Martin Brown

Martin Brown Inscribed thus:

I would agree ! Probably a defect in the backlight tube/tubes.

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Best Regards: 
                        Baron.
Reply to
Baron

I've seen dark bands before (burnt out tube) but never a bright band. I suppose all but one could be dimmed...

Thanks, Dave

Reply to
DaveC

DaveC Inscribed thus:

The tubes blacken at one end more than the other, so the brightness gets turned up to compensate causing a bright area at one side. Double tube displays do the same but because one tube is at the top and the other at the bottom the bright area tends to be towards one corner.

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Best Regards: 
                        Baron.
Reply to
Baron

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