If Apple's iPad mini adopts the Retina display, DPI will be higher and the brightness of the backlight modules will have to improve. This also means the number of LEDs used will increase the total cost by more than 30 per cent for the 7.9-inch Retina panel.
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IHS iSuppli pointed out last year that Apple will have to compromise on thickness and weight and price if it intends to produce a Retina iPad Mini with a design identical to the current model. It remains to be seen if display technologies such as IGZO or some version of Low Temperature Polysilicon (LTPS) are beginning to address some of these display assembly challenges.
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