UK LCD makes mobiles bright

UK LCD makes mobiles bright
Richard Ball Biggin Hill-based liquid crystal display (LCD) manufacturer Densitron has developed a display technology that improves visibility in different ambient lighting conditions. “It’s a major breakthrough for us,” said Nick How, product manager at Densitron. The display shows a negative image and uses a backlight in low light conditions. When light levels are high, the display is positive, and reflects light. Called Chameleon, the technology has applications where there is both high and low ambient light, such as marine and automotive environments and mobile phones. “The technology automatically senses the ambient light and adjusts the image on the display from a positive to a negative image,” said How. “As ambient light stops getting reflected, transmitted light takes over.” The technique can be applied to any size of display, said How, with minimal cost increase to the glass. Because less backlighting is needed, overall system cost could be reduced, he claimed. “And a by-product is that reflected light is double that of a normal LCD technology,” said How. Up to 70 per cent of incident light is reflected. Backlights can use LED or electro-luminescent techniques. Densitron has no plans to license Chameleon to other LCD manufacturers, preferring to keep it for its own displays.


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