发明授权
- 专利标题: Electroluminescence display device
- 专利标题(中): 电致发光显示装置
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申请号: US09501024申请日: 2000-02-09
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公开(公告)号: US06940214B1公开(公告)日: 2005-09-06
- 发明人: Naoaki Komiya , Masahiro Okuyama
- 申请人: Naoaki Komiya , Masahiro Okuyama
- 申请人地址: JP
- 专利权人: Sanyo Electric Co., Ltd.
- 当前专利权人: Sanyo Electric Co., Ltd.
- 当前专利权人地址: JP
- 代理机构: Cantor Colburn LLP
- 优先权: JP11-031385 19990209
- 主分类号: G09F9/30
- IPC分类号: G09F9/30 ; H01L27/32 ; H01L51/50 ; H05B33/00 ; H05B33/12 ; H05B33/14 ; H05B33/26 ; H01J5/48 ; H01J1/62 ; H01J5/50
摘要:
An insulator substrate (110) is provided with a display pixel region (200) comprising an electroluminescence element (160) having a cathode (167), emissive layer (166), and anode (161), and with first and second TFTs for driving the element. Surrounding the display pixel region (200), a peripheral drive circuit region (251) having a third TFT for driving each pixel is further provided on the insulator substrate (110). The cathode (167) is disposed in a region other than the peripheral drive circuit region (251). With this arrangement, generation of a back channel by applying the EL element potential to the cathode is prevented in a complementary TFT employed in the peripheral drive circuit region for controlling the display region, thereby suppressing changes in threshold values due to such back channel generation. As a result, an EL display device with reduced generation of penetration current and minimized increased current consumption is achieved.
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