Delays delivering those white iPhone 4 models may be related to light leakage problems, according to Scott Moritz at The Street.

Apparently, the back light from the iPhone display screen is leaking out around the edges of the glass and seeping through the back of the white phone, according to a person familiar with the manufacturing process,” he writes.

Apple last week said the white models were proving to be, “more challenging to manufacture than we originally expected.”

The Street continues to tell us that Apple’s iPhone 4 is made like a “glass sandwich”. The company uses Corning’s Gorilla glass on the front and back of the iPhone and there’s that metal antenna (shhh) running around the outside.

But the light leakage problem is a biggie. “As the source described it, if it were a metal or plastic material, a simple coating would fill in the gaps and block the internal light. Glass is an entirely different issue.”

I’ve a feeling about this….

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