Sughrue Mion, PLLC
Method of sensing threshold voltage in display panel, display driver integrated circuit performing the same and display device including the same
In a method of sensing a threshold voltage of a driving transistor in a pixel included in a display panel, a first initial level of a data voltage, a level of an initialization voltage and a second initial level of a reference voltage that are used for sensing the threshold voltage of the driving transistor are set. The reference voltage is different from the initialization voltage. The threshold voltage of the driving transistor is sensed by applying the initialization voltage, the data voltage having the first initial level and the reference voltage having the second initial level to the driving transistor. When a predetermined condition is not satisfied by variation in the threshold voltage of the driving transistor, at least one of the first initial level and the second initial level is changed. The threshold voltage of the driving transistor is sensed again based on a result of changing at least one of the first initial level and the second initial level.
SAMSUNG ELECTRONICS CO., LTD.
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Jungmoon
Kim