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Title:
SEALING PLATE FOR ELECTROLUMINECENSE ELEMENT AND MOTHER GLASS SUBSTRATE FOR TAKING A LARGE NUMBER OF SEALING PLATES
Document Type and Number:
WIPO Patent Application WO/2004/014109
Kind Code:
A1
Abstract:
A sealing plate for an EL element having an increased resistance against an external pressure and capable of preventing a damage thereto even if the external pressure is applied thereto and a mother glass substrate for taking a large number of the sealing plates, the mother glass substrate comprising organic EL elements (100, 104) having plate-like transparent substrates, organic EL stacked bodies, and sealing plates, the sealing plates further comprising recessed parts having center parts formed in recessed shapes to specify the peripheral projected parts around the peripheral parts thereof, wherein the sealing plate (30) of the organic EL element (100) is subjected to a chemical strengthening treatment by an ion exchange, and the sealing plate (30a) of the organic EL element (104) comprises a curved portion (35) with a radius of curvature of 300 μm at the corner part (34) of the recessed part (32a).

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Inventors:
YOSHII TETSURO (JP)
NISHIKAWA HIROSHI (JP)
Application Number:
PCT/JP2003/008819
Publication Date:
February 12, 2004
Filing Date:
July 11, 2003
Export Citation:
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Assignee:
NIPPON SHEET GLASS CO LTD (JP)
YOSHII TETSURO (JP)
NISHIKAWA HIROSHI (JP)
International Classes:
H01B1/04; H01L51/52; (IPC1-7): H05B33/04; H05B33/02; H05B33/14; G09F9/30; G09F9/00
Foreign References:
JP2002008855A2002-01-11
JP2002160932A2002-06-04
JPS61177395U1986-11-05
JP2002008853A2002-01-11
JP2002196691A2002-07-12
JP2003142254A2003-05-16
JP2003260394A2003-09-16
JP2003217828A2003-07-31
JP2003217833A2003-07-31
Attorney, Agent or Firm:
Watanabe, Toshihiko (17-1 Toranomon 1-chom, Minato-ku Tokyo, JP)
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