“Apple will reduce the thickness of light guide plates for the illuminated keyboards in its MacBook Air and MacBook Pro models from 0.4mm currently to 0.25mm in 2013, according to sources in Apple’s supply chain,” Jack Purcher reports for Patently Apple.

“Apple currently sources light guide plates mainly from Japan-based NJK and Taiwan-based Global Lighting Technologies, with the former using an injection process and the latter a extrusion process, the sources noted,” Purcher reports.

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