Patent ID: 8487843

Claim:
A display device having a plurality of pixels, each pixel comprising: an organic light emitting element; a driving transistor having a driving transistor control terminal, a driving transistor input terminal, and a driving transistor output terminal, the driving transistor applying a current to the organic light emitting element through the driving transistor output terminal; a compensation transistor having a compensation transistor control terminal, a compensation transistor input terminal, and a compensation transistor output terminal, the compensation transistor control terminal and the compensation transistor input terminal being directly connected to the driving transistor control terminal; a first switching transistor having a first switching transistor control terminal, a first switching transistor input terminal, and a first switching transistor output terminal, the first switching transistor output terminal being connected to the compensation transistor output terminal, the first switching transistor control terminal being connected to a gate line of a present row, and the first switching transistor input terminal being connected to a data line; and a fourth switching transistor having a fourth switching transistor control terminal, a fourth switching transistor input terminal, and a fourth switching transistor output terminal, the fourth switching transistor output terminal being connected to a second contact point where the driving transistor output terminal and the organic light emitting element contact each other, the fourth switching transistor control terminal being connected to a gate line of a next row following the present row, and the fourth switching transistor input terminal being connected to a reference voltage terminal.