Patent ID: 7872632

Claim:
An information processing apparatus comprising: a display panel which displays an image; a light source configured to emit light and comprising a first area and a second area which are arranged in one direction, the first area comprising a first red light emitting element, first green light emitting element, and a first blue light emitting element which are arranged in the one direction, and the second area comprising a second red light emitting element connected in series to the first red light emitting element, a second green light emitting element connected in series to the first green light emitting element and a second blue light emitting element connected to the first blue light emitting element, the second red light emitting element, the second green light emitting element, and the second blue light emitting element being arranged in the one direction; a light guide plate provided on the rear surface of the display panel, and including an end portion to which the light source is attached, wherein the light emitted from the light source is guided to illuminate the display panel; a first control circuit which is connected to an anode of the first red light emitting element and a cathode of the second red light emitting element, and which is configured to detect a magnitude of a first current flowing through the first and second red light emitting elements and to adjust the first current based on a duty ratio of a first PWM signal input and the magnitude of the first current detected; a second control circuit which is connected to an anode of the first green light emitting element and a cathode of the second green light emitting element, and which is configured to detect a magnitude of a second current flowing through the first and second green light emitting elements and to adjust the second current based on a duty ratio of a second PWM signal input and the magnitude of the second current detected; and a third control circuit which is connected to an anode of the first blue light emitting element and a cathode of the second blue light emitting element, and which is configured to detect a magnitude of a third current flowing through the first and second blue light emitting elements and to adjust the third current based on a duty ratio of a third PWM signal input and the magnitude of the third current detected.