JP2020043058A - 表示装置 - Google Patents
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- JP2020043058A JP2020043058A JP2019149225A JP2019149225A JP2020043058A JP 2020043058 A JP2020043058 A JP 2020043058A JP 2019149225 A JP2019149225 A JP 2019149225A JP 2019149225 A JP2019149225 A JP 2019149225A JP 2020043058 A JP2020043058 A JP 2020043058A
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Abstract
Description
104 半導体層
106 ソース電極
108 ドレイン電極
122,124,162 信号リンク
130 発光素子
132 アノード電極
134 発光スタック
136 カソード電極
146,164,166 外郭カバー層
Claims (25)
- アクティブ領域及び非アクティブ領域を有する基板と、
前記基板のアクティブ領域上に配置される薄膜トランジスタと、
前記薄膜トランジスタの上部に配置される少なくとも2層の平坦化層と、
前記基板の非アクティブ領域上に配置される信号リンクと、
前記信号リンクの上部面及び側面と重なる第1外郭カバー層と、
を具備する表示装置。 - 前記第1外郭カバー層は、前記少なくとも2層の平坦化層と離隔される、請求項1に記載の表示装置。
- 前記少なくとも2層の平坦化層は、
前記薄膜トランジスタを覆う保護膜上に配置される第1平坦化層と、
前記第1平坦化層上に配置される第2平坦化層とを具備する、請求項1に記載の表示装置。 - 前記薄膜トランジスタのドレイン電極と接続し、前記第1及び第2平坦化層の間に配置される画素連結電極をさらに具備する、請求項3に記載の表示装置
- 前記画素連結電極は、ドレイン電極と同じ材質からなる、請求項4に記載の表示装置。
- 前記信号リンクはそれぞれ、
前記薄膜トランジスタのゲート電極と同一の平面上で前記ゲート電極と同一の材質からなる下部リンクと、
前記薄膜トランジスタのソース及びドレイン電極と同一の材質からなり、前記ソース及びドレイン電極と同一の平面上で前記下部リンクに連結される上部リンクとを具備し、
前記第1外郭カバー層は、前記第1平坦化層と同一の材質で前記保護膜上に配置され、
前記保護膜は、前記上部リンク上に配置される、請求項4に記載の表示装置。 - 前記ソース及びドレイン電極と前記ゲート電極との間に配置される層間絶縁膜における、少なくとも一つのリンクコンタクトホールをさらに具備し、前記リンクコンタクトホールは前記下部リンクを露出し、
前記上部リンクは前記少なくとも1つのリンクコンタクトホールを通じて前記下部リンクと接続し、
前記第1外郭カバー層は前記リンクコンタクトホールと重なる、請求項6に記載の表示装置。 - 前記信号リンクに接続される導電パッドと、
前記薄膜トランジスタに接続される発光素子と、
前記発光素子上に配置される封止ユニットと、
前記導電パッドと前記発光素子との間に配置される少なくとも一つのダムと、
前記少なくとも一つのダムと前記導電パッドとの間に配置される第2外郭カバー層とをさらに具備する、請求項4に記載の表示装置。 - 前記封止ユニットは、有機封止層と、第1無機封止層と、第2無機封止層とを具備し、
前記第1及び第2無機封止層は無機絶縁物質からなる、請求項8に記載の表示装置。 - 前記第2外郭カバー層は前記信号リンクの上部で前記信号リンクよりも広い線幅を有する、請求項8に記載の表示装置。
- 前記信号リンクは、前記薄膜トランジスタのソース及びドレイン電極と同一の材質からなり、
前記第2外郭カバー層は、前記画素連結電極と同一の層で前記画素連結電極と同一の材質からなる、請求項8に記載の表示装置。 - 前記第2外郭カバー層上に前記第2外郭カバー層よりも広い線幅を有する第3外郭カバー層をさらに具備し、
前記第3外郭カバー層は、前記第2平坦化層と同一の材質からなる、請求項8に記載の表示装置。 - 前記保護膜及び第1平坦化層を貫通するラインコンタクトホールを通じて連結される第1及び第2高電圧供給ラインを含む高電圧供給ラインをさらに具備する、請求項3に記載の表示装置。
- 第1平坦化層と第2平坦化層との間に配置される画素連結電極をさらに備え、
前記第1高電圧供給ラインは、前記薄膜トランジスタのソース及びドレイン電極と同一の平面上で前記ソース及びドレイン電極と同一の材質からなり、
前記第2高電圧供給ラインは、前記画素連結電極と同一の平面上で前記画素連結電極と同一の材質からなる、請求項13に記載の表示装置。 - 前記第1外郭カバー層は、前記信号リンク内の多数の信号リンクのそれぞれに対応する多数の第1外郭カバー層部分(portion)を含む、請求項1に記載の表示装置。
- 前記多数の第1外郭カバー層部分(portion)のそれぞれは、前記信号リンク上に平坦な上部面又は階段状の上部面を有する、請求項15に記載の表示装置。
- アクティブ領域と非アクティブ領域とを有する基板と、
前記基板のアクティブ領域上に配置される薄膜トランジスタと、
前記基板の非アクティブ領域に配置される導電性パッドと、
前記基板の非アクティブ領域に配置され、前記導電性パッドと電気的に接続する第1リンクと、
前記基板の前記アクティブ領域において前記薄膜トランジスタの電極と電気的に接続する第1端部と前記基板の前記非アクティブ領域において前記第1リンクと電気的に接続する第2端部とを備える第1リンクと、
前記基板の平面から見て前記第1及び第2リンクが重なる場合に、信号リンク領域の上部面と1つ又は複数の側面とを覆う第1外郭カバー層とを具備する、表示装置。 - 前記第1リンクは前記基板の第1層に位置し、前記第2リンクは第2層に位置する、請求項17に記載の表示装置。
- 前記第1リンクと前記第2リンクとの間の層間絶縁膜をさらに具備し、前記第1リンクと前記第2リンクとは、前記層間絶縁膜の孔を介して電気的に接続される、請求項17に記載の表示装置。
- 前記第1のリンクは第1の幅を有し
前記第2のリンクは、前記第1および第2リンクが重なる場合、前記信号リンク領域における前記第1の幅よりも広い第2の幅を有し、
前記第1外郭カバー層が前記第2の幅よりも広い第3の幅を有する、請求項17に記載の表示装置。 - 前記第1リンクは前記薄膜トランジスタのゲート電極と同一層上で前記ゲート電極と同一の材質からなり、
前記第2リンクは前記薄膜トランジスタのソース及びドレイン電極と同一層上で前記ソース及びドレイン電極と同一の材質からなる、請求項17に記載の表示装置。 - 前記薄膜トランジスタを覆う平坦化層をさらに具備し、
前記第1外郭カバー層は、前記平坦化層と同一の材質からなる、請求項17に記載の表示装置。 - 前記薄膜トランジスタを覆う第1平坦化層と、
前記第1平坦化層における孔を介して前記薄膜トランジスタのドレイン電極と電気的に接続する画素連結電極とを備え、
前記第1外郭カバー層が前記画素連結電極と同一の材質からなる、請求項17に記載の表示装置。 - 前記基板は、
前記画素連結電極及び前記第1平坦化層を覆う第2平坦化層と、
前記第1外郭カバー層の上部面と側面とを覆う第2外郭カバー層とを具備し、
前記第2外郭カバー層は前記第2平坦化層と同一の材質からなる、請求項23に記載の表示装置。 - 前記アクティブ領域に配置され、前記薄膜トランジスタに接続される発光素子と、
前記発光素子上に配置される封止ユニットと、
前記導電パッドと前記発光素子との間に配置される少なくとも一つのダムと、
前記少なくとも一つのダムと前記導電パッドとの間に配置される第2外郭カバー層とをさらに具備する、請求項17に記載の表示装置。
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