发明名称 Drive circuit of display and display
摘要 A driving circuit in a display apparatus includes a current driving unit for supplying a driving current in a forward direction to a light emitting element based on control data. The current driving unit is furnished with a function of supplying a predetermined current in a reverse direction to the light emitting element. The driving circuit further includes a voltage comparing unit for judging whether a reverse voltage necessary to supply the predetermined current in the reverse direction is smaller than a predetermined voltage. The driving circuit notifies an abnormal condition of the light emitting element based on a judgment by the voltage comparing unit. Consequently, it is possible to detect a light emitting element generating a leak current in a reverse direction of the light emitting element even when the light emitting element is connected to the driving circuit.
申请公布号 US6839056(B2) 申请公布日期 2005.01.04
申请号 US20020089043 申请日期 2002.06.17
申请人 NICHIA CORPORATION 发明人 NAGAI YOSHIFUMI;TSUJI RYUHEI
分类号 G09G3/00;G09G3/32;(IPC1-7):G09G3/30 主分类号 G09G3/00
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