How do I prove that the lines are present?

[andrewp]

Hey,

After a lot of mess with my MBA and the danish retailer where I bought my Mac 6 months ago, it's going to the workshop for the 4th time. Last time they made two small scratches on the screen but denied to fix it. So (to avoid the usual 9 months of proclaiming) I'm going to send it in once again along with 10 other problems including the lines.

Now, I can see the lines (not 100% clear, but they are there), but my question is, how can I show it to the workshop and avoid to get the "I can't see it" answer? Is it more visible on some backgrounds/images or how?

 

[macbook123]

I second the question of the OP.

 

[xpovos]

They disappear at an angle, so view straight on and up close. Light backgrounds. If the viewer focuses his/her eyes on just a single point on the screen, they're harder to see. Observer needs to have a wide field of view, much like what's advocated in professional motorcycle training courses (if that helps at all).

 

[andrewp]

Thanks xpovos, you are absolutely right that it is much easier to see it from a wide point of view.
But isn't there any image that makes it even more obvious and unarguable?

 

[stoconnell]

Thanks xpovos, you are absolutely right that it is much easier to see it from a wide point of view.
But isn't there any image that makes it even more obvious and unarguable?

I'd say an all white or light colored screen (e.g. safari on google home page or these very forum pages).