发明名称 |
Display element drive device |
摘要 |
A transistor Q11 for supplying driving currents Ia to In to EL display elements 11a to 11n is provided in a stabilization voltage supply circuit 33. The transistor Q11 is connected to a current sensing resistor Ras for detecting a collector current of the transistor Q11. When a total current Ix for driving the EL display elements rises to a certain abnormal level, a bias suppressing element Qa is turned on to thereby reduce a base-emitter bias of the transistor 11. <IMAGE> |
申请公布号 |
EP1091339(A3) |
申请公布日期 |
2002.09.04 |
申请号 |
EP20000121607 |
申请日期 |
2000.10.02 |
申请人 |
HARNESS SYSTEM TECHNOLOGIES RESEARCH, LTD.;SUMITOMO WIRING SYSTEMS, LTD.;SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
TOMIDA, TAKAYUKI |
分类号 |
G09F9/30;G09G3/14;G09G3/32;H01L27/32;H01L51/50;H05B33/08 |
主分类号 |
G09F9/30 |
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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