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Changing road markings at the click of a mouse

作者:厉廒让    发布时间:2019-03-01 10:14:03    

By Lane markings on roads could one day be changed at the click of a mouse. Dutch electronics firm Philips last week filed a patent on a hard-wearing version of the electronic ink used in emerging flexible displays for e-books (US 2007/0041785). Instead of painted white lines, ultrathin plastic strips would be attached to road surfaces. Electric fields applied to the display attract coloured, charged particles to the surface – making them visible to motorists. This would allow lane markings or speed limits to be changed at will. “Two lanes on a road can then be changed into three when the need arises during the rush hour,” Philips says. Likewise, three lanes could become two in bad weather. The displays only draw current when they change,

 

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