JP2022520185A - 発光素子溶媒、それを含む発光素子インクおよび表示装置の製造方法 - Google Patents
発光素子溶媒、それを含む発光素子インクおよび表示装置の製造方法 Download PDFInfo
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Abstract
Description
[化学構造式1]
[化学構造式2]
[化学構造式3]
[化学構造式4]
前記化学構造式2~4において、前記R1およびR2は前記化学構造式1で表されるが、前記化学構造式1において、前記R1のn値(n1)とR2のn値(n2)の合計は2~6の範囲を有する。
[化学構造式5]
[化学構造式6]
前記化学構造式5および6において、前記R1およびR2は前記化学構造式1で表されるが、前記化学構造式1において、前記R1のn値(n1)とR2のn値(n2)の合計は2~6の範囲を有する。
[構造式1]
X1-P-X2
(ここで、Pは第3官能基150であり、X1は第1官能基110、X2は第2官能基120である。)
[化学反応式1]
[化学反応式2]
[化学反応式3]
[化学反応式4]
[化学反応式5]
[化学反応式6]
[化学反応式7]
[化学構造式7]
[化学構造式8]
[化学構造式9]
[化学構造式10]
[化学構造式11]
[化学構造式1]
[化学構造式2]
[化学構造式3]
[化学構造式4]
前記化学構造式2~4において、前記R1およびR2は前記化学構造式1で表されるが、前記化学構造式1において、前記R1のn値(n1)とR2のn値(n2)の合計は2~6の範囲を有する。
[化学構造式5]
[化学構造式6]
前記化学構造式5および6において、前記R1およびR2は前記化学構造式1で表されるが、前記化学構造式1において、前記R1のn値(n1)とR2のn値(n2)の合計は2~6の範囲を有する。
ッド、ナノワイヤ、ナノチューブなどの形状を有することができる。例示的な実施形態で、発光素子30は、円筒形またはロッド形(rod)であってもよい。ただし、発光素子30の形態はこれに限定されるものではなく、正六面体、直六面体、六角柱型など、多様な形態を有することができる。後述する発光素子30に含まれる複数の半導体は前記一方向に沿って順次配置されたり、積層された構造を有することができる。
150、Pは、第1素子溶媒101を形成し、第2異性体152の第3官能基150、P’は、第2素子溶媒102を形成することができる。
[構造式1]
X1-P-X2
(ここで、Pは第3官能基150であり、X1は第1官能基110、X2は第2官能基120である。)
[化学反応式1]
[化学反応式2]
[化学反応式3]
[化学反応式4]
[化学反応式5]
[化学反応式6]
[化学反応式7]
[化学構造式7]
[化学構造式8]
[化学構造式9]
[化学構造式10]
[化学構造式11]
Claims (20)
- 第1電極および第2電極が形成された対象基板上に第1素子溶媒および前記第1素子溶媒内に分散した発光素子を含む素子インクを噴射するステップ;
前記第1素子溶媒が有する分子構造の異性体構造を有する第2素子溶媒を形成し、前記第1電極および前記第2電極上に前記発光素子を定着させるステップ;および
前記第2素子溶媒を除去するステップを含む、表示装置の製造方法。 - 前記第1素子溶媒は、前記第3官能基が、前記二重結合が照射される光によってシス-トランス異性化反応して前記第2素子溶媒を形成する、請求項2に記載の表示装置の製造方法。
- 前記第1素子溶媒は、前記第3官能基が、前記二重結合が電子環化反応して前記第2素子溶媒を形成する、請求項2に記載の表示装置の製造方法。
- 前記発光素子を定着させるステップで、第2素子溶媒の粘度は前記第1素子溶媒の粘度より小さい値を有する、請求項2に記載の表示装置の製造方法。
- 前記第1素子溶媒は粘度が7cp~15cpの範囲を有し、
前記第2素子溶媒は、粘度が5cp以下である、請求項8に記載の表示装置の製造方法。 - 前記発光素子を定着させるステップは、
前記第2素子溶媒上に電界を形成するステップ;および
前記電界により前記発光素子の配向方向が整列されるステップを含む、請求項1に記載の表示装置の製造方法。 - 前記発光素子は、一方向に延びた形状を有し、
前記発光素子が延びた前記一方向と、前記第1電極および前記第2電極が延びた方向がなす鋭角は88°~90°の範囲を有する、請求項10に記載の表示装置の製造方法。 - 半導体結晶を含む発光素子が分散する発光素子溶媒であって、
前記発光素子溶媒は、下記化学構造式1で表される第1官能基および第2官能基;および
異性体構造を有する少なくとも一つの二重結合を含み、前記第1官能基および前記第2官能基が結合された第3官能基を含み、
下記化学構造式2~6で表される化合物の少なくともいずれか一つを含む、発光素子溶媒。
[化学構造式1]
(前記化学構造式1において、前記nは1~5の整数であり、前記R3はC1-C5のアルキル基、C2-C5のアルケニル基、C2-C5のアルキニル基、C1-C5のアルキルエーテル基、C2-C5のアルケニルエーテル基およびC2-C5のアルキルエステル基のいずれか一つである。)
[化学構造式2]
[化学構造式3]
[化学構造式4]
[化学構造式5]
[化学構造式6]
(前記化学構造式2~6において、前記R1およびR2は前記化学構造式1で表され、前記化学構造式1において、前記R1のn値(n1)とR2のn値(n2)の合計は2~6の範囲を有する。) - 前記発光素子溶媒は前記第3官能基を含む第1素子溶媒を形成し、
前記第1素子溶媒は、前記第3官能基が異性化反応して粘度が低い第2素子溶媒を形成する、請求項12に記載の発光素子溶媒。 - 前記発光素子溶媒は、前記化学構造式7~9で表される化合物の少なくともいずれか一つを含み、
前記第3官能基は、シス-トランス異性化反応して前記第2素子溶媒を形成する、請求項14に記載の発光素子溶媒。 - 前記発光素子溶媒は、前記化学構造式10および11で表される化合物の少なくともいずれか一つを含み、
前記第3官能基は、電子環化反応して前記第2素子溶媒を形成する、請求項14に記載の発光素子インク。 - 半導体結晶および前記半導体結晶の外周面を囲む絶縁膜を含む発光素子;および
少なくとも一つの前記発光素子が分散した発光素子溶媒を含み、
前記発光素子溶媒は、
下記化学構造式1で表される第1官能基および第2官能基;および
異性体構造を有する少なくとも一つの二重結合を含み、前記第1官能基および前記第2官能基が結合された第3官能基を含み、
下記化学構造式2~6で表される化合物の少なくともいずれか一つを含む、発光素子インク。
[化学構造式1]
(前記化学構造式1において、前記nは1~5の整数であり、前記R3はC1-C5のアルキル基、C2-C5のアルケニル基、C2-C5のアルキニル基、C1-C5のアルキルエーテル基、C2-C5のアルケニルエーテル基およびC2-C5のアルキルエステル基のいずれか一つである。)
[化学構造式2]
[化学構造式3]
[化学構造式4]
[化学構造式5]
[化学構造式6]
(前記化学構造式2~6において、前記R1およびR2は前記化学構造式1で表され、前記化学構造式1において、前記R1のn値(n1)とR2のn値(n2)の合計は2~6の範囲を有する。) - 前記発光素子溶媒は、前記第3官能基を含む第1素子溶媒を形成し、
前記第1素子溶媒は、前記第3官能基が異性化反応して粘度が低い第2素子溶媒を形成する、請求項18に記載の発光素子インク。 - 前記半導体結晶は、
第1導電型にドーピングされた第1導電型半導体;
前記第1導電型と異なる極性を有する第2導電型にドーピングされた第2導電型半導体;および
前記第1導電型半導体と前記第2導電型半導体の間に形成される活性層を含む、請求項19に記載の発光素子インク。
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