发明授权
- 专利标题: Thin film electroluminescent display with improved contrast
- 专利标题(中): 具有改善对比度的薄膜电致发光显示器
-
申请号: US218848申请日: 1988-07-14
-
公开(公告)号: US4963788A公开(公告)日: 1990-10-16
- 发明人: Christopher N. King , Richard E. Coovert
- 申请人: Christopher N. King , Richard E. Coovert
- 申请人地址: OR Beaverton
- 专利权人: Planar Systems, Inc.
- 当前专利权人: Planar Systems, Inc.
- 当前专利权人地址: OR Beaverton
- 主分类号: G09F9/33
- IPC分类号: G09F9/33 ; H05B33/04 ; H05B33/12 ; H05B33/26 ; H05B33/28
摘要:
A TFEL device having improved contrast includes a laminate having a phosphor layer sandwiched between front and rear insulating layers placed upon a substrate supporting a set of front transparent electrodes. The rear set of electrodes are transparent or semitransparent so as not to reflect ambient light toward the viewer. The TFEL laminate is contained within a cavity created by an enclosure secured to the substrate by an adhesive. Darkly dyed filler material is injected into the cavity whose rear inside wall may have a dark coating. The semitransparent electrodes may be made of gold or may be made of transparent indium tin oxide having narrow aluminum bus bars for improved conductivity.
公开/授权文献
- US5450075A Rotary control 公开/授权日:1995-09-12
信息查询