发明授权
US5239228A Thin-film electroluminescence device for displaying multiple colors with
groove for capturing adhesive
失效
用于显示多种颜色的用于捕获粘合剂的凹槽的薄膜电致发光器件
- 专利标题: Thin-film electroluminescence device for displaying multiple colors with groove for capturing adhesive
- 专利标题(中): 用于显示多种颜色的用于捕获粘合剂的凹槽的薄膜电致发光器件
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申请号: US723907申请日: 1991-07-01
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公开(公告)号: US5239228A公开(公告)日: 1993-08-24
- 发明人: Kouji Taniguchi , Shigeo Nakajima , Masaru Yoshida
- 申请人: Kouji Taniguchi , Shigeo Nakajima , Masaru Yoshida
- 申请人地址: JPX Osaka
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: JPX Osaka
- 优先权: JPX2-175975 19900702; JPX2-184972 19900711
- 主分类号: H05B33/04
- IPC分类号: H05B33/04 ; H05B33/22
摘要:
A thin-film electroluminescence (EL) device capable of displaying multiple colors has a laminated structure wherein back electrodes in stripes, a lower dielectric layer, a luminescence layer, an upper dielectric layer and transparent electrodes in stripes are sequentially formed on a transparent substrate in this order. The back electrodes intersect the transparent electrodes at right angles, and areas of the device where the back electrodes confront the transparent electrodes form picture elements. This device also has at least first and second color filters. The first and second filters are placed not only in corresponding picture-element areas of the transparent electrodes, but also in non-picture-element areas of the transparent electrodes and an upper dielectric layer such that the first color filter overlaps the second color filter in the non-picture-element areas. The first and second color filters in combination have transmissivities to visible lights similar to those of a black filter, thereby restraining external light coming to the non-picture-element areas from being reflected. Further, the device can include a groove in a transparent sealing plate formed above the transparent electrode. The transparent sealing plate is bonded to the transparent substrate with an adhesive and the groove captures excess adhesive to avoid interference between the adhesive and the picture elements.
公开/授权文献
- US5862617A Display apparatus 公开/授权日:1999-01-26
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