Invention Grant
- Patent Title: Color filter for organic electroluminescence display device, and organic electroluminescence display device
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Application No.: US14353552Application Date: 2012-10-25
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Publication No.: US09647229B2Publication Date: 2017-05-09
- Inventor: Shinsuke Nakazawa , Kazuyuki Hino
- Applicant: DAI NIPPON PRINTING CO., LTD.
- Applicant Address: JP Tokyo-to
- Assignee: DAI NIPPON PRINTING CO., LTD.
- Current Assignee: DAI NIPPON PRINTING CO., LTD.
- Current Assignee Address: JP Tokyo-to
- Agency: Ladas & Parry LLP
- Priority: JP2011-234657 20111026
- International Application: PCT/JP2012/077643 WO 20121025
- International Announcement: WO2013/062059 WO 20130502
- Main IPC: G02B5/20
- IPC: G02B5/20 ; H01L51/52 ; H01L27/32 ; H05B33/26 ; G02B5/22

Abstract:
When a large-screen organic EL display device is developed, the generation of a brightness unevenness is prevented between its screen central region and its screen outer circumferential region. Cost risk is decreased about the formation of a structure of preventing the generation of the brightness unevenness. Furthermore, an original protecting function for its organic EL elements is maintained. The color filter of the present invention comprises a transparent substrate, a colored layer that is a pixel region formed on the transparent substrate, and a non-pixel area formed around the colored layer, wherein a convex pillar is formed in at least one spot of the non-pixel area, and an auxiliary electrode layer on a top and a side of the convex pillar, and on the non-pixel area.
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