发明名称 Illuminated sign or display panel - with electro-luminescent cells behind apertures in opaque mask
摘要 <p>The display panel comprises a plastics or rigid cardboard backing sheet (10), on which the electro-luminescent cells (11) are mounted, by locating them in respective apertures in a support film (12) applied to the sheet, and in which the supply leads for each cell (11) are embedded. An opaque mask (13) is laed over the backing sheet (10) and support film (12), with apertures (14) or transparent sections which overlie the lectro-luminescent cells (11) so that selectively energised cells (11) are visible through the mask (13). Pref. the whole assembly is overlaid by a thin protective coating (15) of cellulose or plastics and having a similar colour to that cells (11) which are not energised, so that these are disguised.</p>
申请公布号 FR2239928(A5) 申请公布日期 1975.02.28
申请号 FR19730028000 申请日期 1973.07.31
申请人 DROIN JACQUES,FR 发明人
分类号 G09F13/22;(IPC1-7):09F13/22 主分类号 G09F13/22
代理机构 代理人
主权项
地址