A transparent sun visor that uses AI to establish the location of your eyes and cast a shade on them has been developed by an engineering company. The high-tech visor, the first update to the vehicle essential since the 1920s, darkens see-through liquid crystals to protect drivers' eyes without blocking their view. Developed by Bosch, it is due to go on display at the Consumer Electronics Show in Las Vegas this week, and could help reduce the number of fatalities on the roads. Bosch has invented a visor that uses AI to only cast shadow onto a drivers' eyes Speaking before the conference, Dr Steffen Berns, president of Bosch Car Multimedia, told The Times: 'The visor as we know it is not enough to avoid hazardous sun glare, especially at dawn and dusk'. The company's'virtual visor' uses a screen larger than a traditional one that hangs over the windscreen ready to produce shade when needed, and blocks up to 90 per cent less of the area than a traditional visor, according to the company.