DISPLAY DEVICE AND DISPLAY DEVICE DRIVING METHOD Russian patent published in 2013 - IPC G09G3/36 G02F1/1333 

FIELD: information technology.

SUBSTANCE: display device has a display panel (2), where display elements are arranged in form of an array, said display panel having a frame region situated on the edge of the display panel (2), which does not contain display elements, a light guide (4), which changes the light path of a portion of light emitted by display elements such that said portion of light is directed into the frame region, a photosensor (100), situated on the display panel (2), which measures illumination from the surrounding environment, a correcting unit for correcting the image signal, which (i) corrects the image signal transmitted to the display element of the region having a light guide (4), and (ii) outputs a corrected image signal, and a control unit which controls the display element in accordance with the corrected image signal.

EFFECT: preventing colour shift in an image when the display is illuminated by an external light source.

13 cl, 21 dwg