Patent ID: 9741294
Date: 2017-08-22
CPC Classifications: G09G

Claim:
1. A display characteristic correction method, comprising: measuring, by an optical sensor disposed facing a display surface of a display panel of a liquid crystal display device, an irradiation amount of light emitted by the display panel as a measured optical value; revising, by a non-transitory measure value processor, a revision target measured optical value using a function and outputting it as a revised measured optical value, the revision target measured optical value being a measured optical value to be revised; generating, by a signal processor, from the revised measured optical value, a control value that controls the display panel to stabilize a display quality of the image displayed on the display panel, and generating a post-processing video signal that displays an image on the display panel from the control signal and an input video signal supplied from an external device, the function representing a relationship between the irradiation amount and time during a disabled period in which the signal processor disables a stabilizing function of keeping the irradiation amount of the light source of the display panel constant when measuring the revision target measured optical value; counting, by a timer, time; and calculating, by a coefficient calculator, the function based on a plurality of standard measured optical values and times which are measured by the timer and represent times at which the standard measured optical values are measured, the plurality of standard measured optical values being measured at different times including a start time at which the disabled period is started.