A TUNABLE BACKLIGHT DEVICE, A DISPLAY DEVICE AND A METHOD OF DRIVING THE SAME

摘要

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.

主权项

1. A tunable backlight device, comprising:
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, from the library of current feedback coefficients, respectively, according to requirements on chromaticity and luminance; a backlight driving apparatus configured to supply currents to the backlight apparatus with high color gamut and low luminance and the backlight apparatus with low color gamut and high luminance to enable light emission, based on the first and the second current feedback coefficients, respectively; and a light guide plate configured to mix the lights emitted from the backlight apparatus with high color gamut and low luminance and the lights emitted from the backlight apparatus with low color gamut and high luminance.