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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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