JP7314255B2 - 発光素子の整列方法とそれを用いた表示装置の製造方法 - Google Patents
発光素子の整列方法とそれを用いた表示装置の製造方法 Download PDFInfo
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- JP7314255B2 JP7314255B2 JP2021515628A JP2021515628A JP7314255B2 JP 7314255 B2 JP7314255 B2 JP 7314255B2 JP 2021515628 A JP2021515628 A JP 2021515628A JP 2021515628 A JP2021515628 A JP 2021515628A JP 7314255 B2 JP7314255 B2 JP 7314255B2
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Classifications
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- H01—ELECTRIC ELEMENTS
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- H01L2224/93—Batch processes
- H01L2224/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
- H01L2224/951—Supplying the plurality of semiconductor or solid-state bodies
- H01L2224/95101—Supplying the plurality of semiconductor or solid-state bodies in a liquid medium
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- H01L2224/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
- H01L2224/9512—Aligning the plurality of semiconductor or solid-state bodies
- H01L2224/95121—Active alignment, i.e. by apparatus steering
- H01L2224/95133—Active alignment, i.e. by apparatus steering by applying an electromagnetic field
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- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
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- H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
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- H01L2924/11—Device type
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Description
素PX1、第2サブ画素PX2、および第3サブ画素PX3それぞれで第1電極枝部210B、第2電極枝部220B、第1電極枝部210B、および第2電極枝部220Bの順に第1方向(X軸方向)に配置され得る。
れるものではない。
Claims (19)
- 第1電極にグランド電圧を印加し、前記第1電極と離隔する第2電極に第1交流電圧を印加する段階と、
前記第1電極にグランド電圧を印加し、前記第2電極に第2交流電圧を印加する段階とを含み、
前記第1交流電圧は、非対称波形を有し、
前記第2交流電圧は、対称波形を有する、発光素子の整列方法。 - 前記第1交流電圧の正極性領域の電圧波形と負極性領域の電圧波形は、左右非対称である、請求項1に記載の発光素子の整列方法。
- 前記第1交流電圧は、のこぎり波形またはランプ波形を有する、請求項1に記載の発光素子の整列方法。
- 前記第2交流電圧の正極性領域の電圧波形と負極性領域の電圧波形は、左右対称である、請求項1に記載の発光素子の整列方法。
- 前記第2交流電圧は、正弦波形、矩形波形、または三角波形を有する、請求項1に記載の発光素子の整列方法。
- 前記第1交流電圧の駆動周波数は、前記第2交流電圧の駆動周波数より低い、請求項1に記載の発光素子の整列方法。
- 前記第1交流電圧の駆動周波数は、1hz~1khzである、請求項6に記載の発光素子の整列方法。
- 前記第2交流電圧の駆動周波数は、1khz~100khzである、請求項6に記載の発光素子の整列方法。
- 前記第1電極にグランド電圧を印加し、前記第1電極と離隔する第2電極に第1交流電圧を印加する場合、前記第1電極と前記第2電極によって形成された電場は正極性または負極性のうちいずれか一つの極性が優勢な非対称電場である、請求項1に記載の発光素子の整列方法。
- 前記第1電極にグランド電圧を印加し、前記第2電極に第2交流電圧を印加する場合、前記第1電極と前記第2電極によって形成された電場は対称電場である、請求項1に記載の発光素子の整列方法。
- 基板上に隔壁、第1電極、および第2電極を形成する段階と、
発光素子を含む塗布性溶液をサブ画素に塗布する段階と、
前記第1電極と前記第2電極の間に電場を形成して前記発光素子を整列する段階と、
前記塗布性溶液を揮発させて除去する段階と、
前記第1電極と前記発光素子の一端を連結する第1連結電極を形成する段階と、
前記第2電極と前記発光素子の他端を連結する第2連結電極を形成する段階とを含み、
前記第1電極と前記第2電極の間に電場を形成して前記発光素子を整列する段階は、
前記第1電極にグランド電圧を印加し、前記第2電極に非対称波形を有する第1交流電圧を印加する段階を含む、表示装置の製造方法。 - 前記第1電極にグランド電圧を印加し、前記第2電極に第1交流電圧を印加する場合、前記発光素子が前記第1電極に偏向する、請求項11に記載の表示装置の製造方法。
- 前記発光素子それぞれは、
前記発光素子それぞれの他端に配置された第1導電型半導体と、
前記発光素子それぞれの一端に配置された第2導電型半導体とを含み、
前記第1導電型半導体が前記第2電極に近く配置され、第2導電型半導体が前記第1電極に近く配置される、請求項11に記載の表示装置の製造方法。 - 前記第1導電型半導体はn型半導体層であり、前記第2導電型半導体はp型半導体層である、請求項13に記載の表示装置の製造方法。
- 前記第1電極と前記第2電極の間に電場を形成して前記発光素子を整列する段階は、
前記第1電極にグランド電圧を印加し、前記第2電極に第2交流電圧を印加する段階をさらに含む、請求項11に記載の表示装置の製造方法。 - 前記第1電極にグランド電圧を印加し、前記第2電極に第2交流電圧を印加する場合、前記発光素子が前記第1電極と前記第2電極の間の中央に整列する、請求項15に記載の表示装置の製造方法。
- 前記第2交流電圧は、対称波形を有する、請求項15に記載の表示装置の製造方法。
- 前記第1交流電圧の駆動周波数は、前記第2交流電圧の駆動周波数より低い、請求項15に記載の表示装置の製造方法。
- 前記第2連結電極を形成した後に前記第1電極を断線してサブ画素ごとに第1電極を形成する段階をさらに含む、請求項11に記載の表示装置の製造方法。
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