发明名称 ORGANIC EL DISPLAY PANEL AND METHOD OF MANUFACTURING THE SAME
摘要 An organic electroluminescence display panel includes a thin-film transistor layer above a substrate. A planarizing film is above the thin-film transistor layer with contact holes being formed in the planarizing film. A bank is above the planarizing film. The bank includes openings arranged in rows and columns that define regions for forming organic electroluminescence elements. Each opening is between a pair of adjacent concaves in one of the columns. The concaves are formed in an upper surface of the bank and sunken into the contact holes. The upper surface of the bank has repellency. A light-emitting layer is formed in each opening by ejecting drops of an ink from nozzles of an inkjet head into the openings while moving the inkjet head relative to the substrate. The nozzles further eject drops of the ink into the concaves when above the concaves for ejecting the drops of the ink through every nozzle.
申请公布号 US2014284588(A1) 申请公布日期 2014.09.25
申请号 US201414299367 申请日期 2014.06.09
申请人 PANASONIC CORPORATION 发明人 TAKEUCHI Takayuki
分类号 H01L51/56 主分类号 H01L51/56
代理机构 代理人
主权项 1. An organic electroluminescence display panel, comprising: a substrate; a thin-film transistor layer formed above the substrate; a planarizing film formed above the thin-film transistor layer; an electrode layer above the planarizing film; a plurality of contact holes in the planarizing film via which a wire is disposed such that the thin-film transistor layer is in electrical contact with the electrode layer; and a bank having repellency on at least one surface, the bank being formed above the electrode layer and having openings arranged in rows and columns that define regions for forming organic electroluminescence elements, wherein: a part of the bank is sunken into the contact holes, concavities on the upper surface of the bank above the contact holes are in one-to-one correspondence with concavities of the contact holes, a light-emitting layer is formed within the openings and the concavities on the upper surface of the bank, and the upper surface of the bank having the concavities is lower than a lower surface of the light-emitting layer.
地址 Osaka JP