发明名称 Display device, driving method thereof and electronic appliance
摘要 A display device is provided where fluctuation of current values of a light-emitting element caused by the ambient temperature change and degradation with time is suppressed. According to the invention, a monitoring element driven with a constant current is provided. After detecting a voltage in the monitoring element, the voltage is applied to a light-emitting element. That is, the monitoring element is driven with a constant current, and a voltage in the monitoring element is applied to the light-emitting element so that the light-emitting is driven with a constant voltage. When a predetermined condition is satisfied, an extrapolation power supply circuit samples voltages of the monitoring element, obtaining a mathematical formula of a change of the sampled voltages and generating a voltage based on the mathematical formula, which is supplied to the light-emitting element.
申请公布号 US8154541(B2) 申请公布日期 2012.04.10
申请号 US20050572158 申请日期 2005.07.28
申请人 KOYAMA JUN;YAMAZAKI SHUNPEI;SEMICONDUCTOR ENERGY LABORATORY CO., LTD. 发明人 KOYAMA JUN;YAMAZAKI SHUNPEI
分类号 G09G3/30;G09G3/32 主分类号 G09G3/30
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