Patent ID: 10210819

Abstract:
The present disclosure provides a tunable backlight device, a display device and method of driving the display device. The tunable backlight device comprises: at least one backlight apparatus with high color gamut and low luminance; at least one backlight apparatus with low color gamut and high luminance; a storage configured to store a library of current feedback coefficients; a current feedback apparatus, configured to determine a first current feedback coefficient (K1) for the backlight apparatus with high color gamut and low luminance and a second current feedback coefficient (K2) for the backlight apparatus with low color gamut and high luminance, according to the requirements, respectively; a backlight driving apparatus configured to supply respective currents to both the backlight apparatuses to emit lights, based on the first and the second current feedback coefficients, respectively; and a light guide plate configured to mix the lights emitted from the both backlight apparatuses.