SELF-LIGHT-EMITTING DEVICE

PROBLEM TO BE SOLVED: To reduce emission failure of an EL element due to deposition failure of an organic EL material in an electrode hole 46.SOLUTION: After an insulator is embedded in an electrode hole 46 on a pixel electrode to form a protection part 41b, an organic EL material is deposited, ther...

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Bibliographic Details
Main Authors MARUYAMA JUNYA, KONUMA TOSHIMITSU
Format Patent
LanguageEnglish
Japanese
Published 04.02.2016
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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Summary:PROBLEM TO BE SOLVED: To reduce emission failure of an EL element due to deposition failure of an organic EL material in an electrode hole 46.SOLUTION: After an insulator is embedded in an electrode hole 46 on a pixel electrode to form a protection part 41b, an organic EL material is deposited, thereby preventing deposition failure in the electrode hole 46. Thus, the occurrence of current concentration due to a short circuit between a cathode and an anode of the EL element is prevented to prevent emission failure of an EL layer.SELECTED DRAWING: Figure 1 【課題】電極ホール４６における有機ＥＬ材料の成膜不良によるＥＬ素子の発光不良を改善することを課題とする。【解決手段】上記課題を達成するために、本発明では画素電極上の電極ホール４６に絶縁体を埋め込み、保護部４１ｂを形成させた後、有機ＥＬ材料を成膜することで、電極ホール４６における成膜不良を防ぐことができる。これにより、ＥＬ素子の陰極、陽極間の短絡により電流集中が生じるのを防ぎ、ＥＬ層の発光不良を防ぐことができる。【選択図】図１
Bibliography:Application Number: JP20150192973