发明申请
- 专利标题: Display device
- 专利标题(中): 显示设备
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申请号: US10500143申请日: 2003-04-23
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公开(公告)号: US20050051817A1公开(公告)日: 2005-03-10
- 发明人: Satoshi Morita , Shinichiro Tanaka , Osamu Kobayashi
- 申请人: Satoshi Morita , Shinichiro Tanaka , Osamu Kobayashi
- 优先权: JP2002-125592 20020426; JP2002-159124 20020531; JP2002-173817 20020614; JP2002-173816 20020614
- 国际申请: PCT/JP03/05222 WO 20030423
- 主分类号: G02F1/1362
- IPC分类号: G02F1/1362 ; G02F1/1368 ; G09G3/32 ; H01L27/32 ; H01L21/00 ; H01L31/062
摘要:
A display device includes a plurality of light emitting elements arranged in a matrix. A scan signal is made to flow into a gate signal line and a data signal is made to flow into a source signal line so that the data signal is applied to a source electrode and the scan signal is supplied to a gate electrode of a control TFT arranged at a portion where the both signal lines intersect when viewed from above. Thus, when the control TFT is turned ON, a drive TFT having a gate electrode connected to the drain electrode is turned ON, so that current is supplied from a power supply line via the source electrode and the drain electrode of the drive TFT to an organic EL element and the organic EL element emits light. A holding capacity is present between the control TFT and the drive TFT. Even when the scan signal becomes LOW level and the control TFT turns OFF, the gate potential of the drive TFT is held for a predetermined period of time by the holding capacity and the organic EL element continues to emit light.
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