BACKLIGHT DEVICE, METHOD OF CONTROLLING BACKLIGHT AND LIQUID-CRYSTAL DISPLAY DEVICE Russian patent published in 2011 - IPC G09G3/36 

FIELD: physics.

SUBSTANCE: light source controller, which controls backlight, provides processing which is successively performed for all units SA-a (1) - (16) in the SA-a correction region. Processing includes installation of the SA-a region for four regions SA-a - SA-d as a correction region and providing light emission in unit SA-a (1), which is a unit in the SA-a correction region, and successive emission of light in units SA-b (n) - SA-d (n), which lie in three other regions SA-b - SA-d, except the SA-a correction region, and positions of which, in these regions, correspond to the SA-a (n) unit. The light source controller then repeats similar operations for the remaining three regions SA-b - SA-d, used as correction regions.

EFFECT: possibility of correcting brightness or colour grade of emission light with high accuracy and with low expenses.

9 cl, 17 dwg