| 摘要 |
The purpose of the present invention is to provide a light-emitting element drive circuit, an A-D conversion circuit, and a display device capable of carrying out comparison operation using a uniform sawtooth wave voltage. The light-emitting element drive circuit according to the present invention comprises: a sawtooth wave generation unit (11) for generating, on the basis of at least two input reference signals (Vsaw_1, Vsaw_2), a sawtooth wave voltage (Vsaw) that changes; and a comparison unit (12) for comparing an analog signal voltage (Vsig) with the sawtooth wave voltage (Vsaw). The light-emitting element drive circuit drives a light-emitting element (10) on the basis of the comparison results from the comparison unit (12). Thereby, comparison operation can be carried out using a uniform sawtooth wave voltage. |
