JP7486329B2 - 発光素子、その製造方法、及びそれを含む表示装置 - Google Patents
発光素子、その製造方法、及びそれを含む表示装置 Download PDFInfo
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- JP7486329B2 JP7486329B2 JP2020043181A JP2020043181A JP7486329B2 JP 7486329 B2 JP7486329 B2 JP 7486329B2 JP 2020043181 A JP2020043181 A JP 2020043181A JP 2020043181 A JP2020043181 A JP 2020043181A JP 7486329 B2 JP7486329 B2 JP 7486329B2
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Description
DP:表示パネル
EML:発光層
QD:量子ドット
ISL:絶縁層
Claims (9)
- 第1電極と、
前記第1電極と向かい合う第2電極と、
前記第1電極と前記第2電極との間に配置され、量子ドットを含む発光層と、
前記第1電極と前記発光層との間に配置される第1電荷移動層と、
前記第2電極と前記発光層との間に配置される第2電荷移動層と、
前記第1電荷移動層と前記発光層との間、及び前記第2電荷移動層と前記発光層との間のうち少なくとも一つに配置される絶縁層と、を含み、
前記絶縁層は、
無機物を含む無機絶縁層と、
有機物を含む有機絶縁層と、を含む、
発光素子。 - 前記絶縁層は、SiNx、SiOx、Al2O3、TiOx、及びZrOxのうち少なくとも一つを含む、
請求項1に記載の発光素子。 - 前記無機絶縁層及び前記有機絶縁層は複数設けられ、
前記絶縁層は、
前記複数の無機絶縁層と前記複数の有機絶縁層とが交互に配置される、
請求項1に記載の発光素子。 - 前記第1電荷移動層は、
前記第1電極に隣接するように配置される正孔注入層と、
前記正孔注入層と前記発光層との間に配置される正孔輸送層と、を含み、
前記第2電荷移動層は、
前記第2電極に隣接するように配置される電子注入層と、
前記電子注入層と前記発光層との間に配置される電子輸送層と、を含む、
請求項1に記載の発光素子。 - 前記量子ドットはカドミウム系物質を含み、
前記絶縁層は前記電子輸送層と前記発光層との間に配置される、
請求項4に記載の発光素子。 - 前記絶縁層は前記発光層と接するように配置される、
請求項1に記載の発光素子。 - 前記絶縁層の厚さは0.1nm以上10nm以下である、
請求項1に記載の発光素子。 - 複数個の発光素子を含む表示装置において、
前記複数個の発光素子のそれぞれは、
第1電極と、
前記第1電極と向かい合う第2電極と、
前記第1電極と前記第2電極との間に配置され、量子ドットを含む発光層と、
前記第1電極と前記発光層との間に配置される第1電荷移動層と、
前記第2電極と前記発光層との間に配置される第2電荷移動層と、
前記第1電荷移動層と前記発光層との間、及び前記第2電荷移動層と前記発光層との間のうち少なくとも一つに配置される絶縁層と、を含み、
前記絶縁層は、
無機物を含む無機絶縁層と、
有機物を含む有機絶縁層と、を含む、
表示装置。 - 第1電極を用意するステップと、
前記第1電極の上に量子ドットを含む発光層を形成するステップと、
前記発光層の上に無機物を蒸着して無機絶縁層を形成するステップと、
前記無機絶縁層の上に有機物を蒸着して有機絶縁層を形成するステップと、
前記有機絶縁層の上に第2電極を形成するステップと、を含む、
発光素子の製造方法。
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WO2023152972A1 (ja) * | 2022-02-14 | 2023-08-17 | シャープディスプレイテクノロジー株式会社 | 発光デバイスおよびその製造方法 |
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