发明授权
US09406256B2 Integrated drive circuit for multi-segment electroluminescent displays
有权
用于多段电致发光显示器的集成驱动电路
- 专利标题: Integrated drive circuit for multi-segment electroluminescent displays
- 专利标题(中): 用于多段电致发光显示器的集成驱动电路
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申请号: US13859211申请日: 2013-04-09
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公开(公告)号: US09406256B2公开(公告)日: 2016-08-02
- 发明人: Patrick D. Pietro , William J. Pietro , Paul Savel
- 申请人: Scobil Industries Corp.
- 申请人地址: CA Brampton, Ontario
- 专利权人: Scobil Industries Corp.
- 当前专利权人: Scobil Industries Corp.
- 当前专利权人地址: CA Brampton, Ontario
- 代理机构: Bereskin & Parr LLP/S.E.N.C.R.L., s.r.l.
- 主分类号: G09G3/30
- IPC分类号: G09G3/30 ; H05B33/08
摘要:
An integrated drive circuit for multi-segment electroluminescent displays is provided. During a charging phase, the electroluminescent segments are charged by a common charge circuit, and partially discharged using separate discharge circuits associated with individual electroluminescent segments. A controller provides essentially independent control over the respective discharge circuits so, by the end of the charging phase, the EL segments can be charged to correspondingly different final voltages. Then during a discharging phase following the charging phase, the electroluminescent segments are completely discharged, thereby emitting an intensity of light that varies roughly in proportion to the final accumulated voltage. The controller can be pre-programmed with a spatial-temporal light pattern so that, using the disclosed integrated drive circuit, the electroluminescent display can be operated to generate rudimentary animations.
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