| 摘要 |
A self-light-emitting display module by which a defect can be quickly notified to a user, for example, when the defect is caused in a pixel on a display panel is provided. A routine for verifying whether a defect is caused on a signal line including a pixel on the display panel, and the like is executed when, for example, operating power is supplied to the self-light-emitting display module; or on a regular basis under a state in which the operating power is supplied; or when ON-operation of a detecting switch is executed by a user; and the like. A circuit for generating a reverse bias voltage is used as a current source. A defect state of a pixel, signal lines including the pixels and the like is recognized by a wave form of a current when the current is applied to an EL element in a non-light-emitting direction. When a defect is detected, a defect notification unit is operated.
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