JP6854268B2 - フレキシブル表示装置及びその製造方法 - Google Patents
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Description
Claims (12)
- 互いに対して逆にある第1及び第2の主表面を含む、第1の厚さを有する第1材料からなる支持基板;
前記支持基板の第1の主表面に配置されて、前記第1の厚さより小さい第2の厚さ及び前記第1材料よりフレキシブルである第2材料からなるバッファ基板;
前記バッファ基板の一面に配置される薄膜トランジスタアレイであって、前記バッファ基板は前記薄膜トランジスタアレイと前記支持基板との間に配置される、薄膜トランジスタアレイ;
前記薄膜トランジスタアレイ上に配置されて、複数のサブ画素にそれぞれ対応する複数の有機発光素子からなる有機発光素子アレイ;
前記有機発光素子アレイ及び前記薄膜トランジスタアレイ上に固定的に配置され、前記有機発光素子アレイを封止する封止基板;及び
前記封止基板上に配置されるローリング補助フィルム
を含み、
前記第1材料は、ガラス(glass)を含み、
前記第2材料は、PFT(polyethylene terephthalate)、PEN(ethylene naphthalate)、PI(polyimide)、PMMA(polymethyl methacrylate)、PC(polycarbonate)、PS(polystyrene)、及びPES(polyethersulfone)のいずれかから選択され、
前記有機発光素子アレイは、前記薄膜トランジスタアレイと前記封止基板との間に配置され、
前記バッファ基板、前記薄膜トランジスタアレイ、前記有機発光素子アレイ及び前記封止基板は、前記支持基板と前記ローリング補助フィルムとの間に、順番に配置され、
前記有機発光素子の光は前記支持基板を通して放出され、
前記ローリング補助フィルムは、少なくとも一つのベースと、前記少なくとも一つのベース上の複数の支柱パターンとを含み、前記複数の支柱パターンの側面は隣接する支柱パターンからある距離だけ離間される、フレキシブル表示装置。 - 前記第1の厚さは、50μm〜100μmの範囲に該当する、請求項1に記載のフレキシブル表示装置。
- 前記第2の厚さは、3μm〜20μmの範囲に該当する、請求項2に記載のフレキシブル表示装置。
- ローリング形態に具現された場合、曲率半径は、40mm〜3500mmである、請求項1に記載のフレキシブル表示装置。
- 前記ローリング補助フィルムは、前記フレキシブル表示装置の前記ローリング形態へのローリングを促し、前記複数の支柱パターンの配列方向は前記ローリング形態のローリング方向に対応する、請求項1に記載のフレキシブル表示装置。
- 前記バッファ基板は、前記バッファ基板の一部が前記支持基板の側縁上に配置されるように、前記支持基板の縁で曲げられ、
前記薄膜トランジスタアレイは、前記薄膜トランジスタアレイの一部が前記支持基板の側縁の上方に配置されるように、前記バッファ基板とともに曲げられる、請求項1に記載のフレキシブル表示装置。 - 前記支持基板の第2の主表面に配置されて、前記有機発光素子アレイから放出された光を偏光する偏光フィルムをさらに含み、
前記偏光フィルム厚は70μm〜650μmである、請求項1に記載のフレキシブル表示装置。 - 互いに対して逆にある第1及び第2の主表面を含む、第1材料からなるキャリア基板を設けるステップ;
前記第1材料よりフレキシブルである第2材料からなるバッファ基板を前記キャリア基板の第1の主表面に配置するステップ;
前記バッファ基板の一面に薄膜トランジスタアレイを配置するステップ;
複数のサブ画素にそれぞれ対応する複数の有機発光素子からなる有機発光素子アレイを前記薄膜トランジスタアレイ上に配置するステップ;
前記有機発光素子アレイ上に封止基板を、前記薄膜トランジスタアレイと前記有機発光素子アレイが前記バッファ基板と前記封止基板との間に配置され封止されるように、固定的に配置するステップ;
前記封止基板上にローリング補助フィルムを配置するステップであって、前記封止基板は前記ローリング補助フィルムと前記有機発光素子アレイとの間に配置される、ステップ;及び
前記キャリア基板の一部を前記キャリア基板の第2の主表面からエッチング及び研磨し、前記キャリア基板の残りの部分を第1の厚さからなる支持基板として設けるステップを含み、
前記第1材料は、ガラス(glass)を含み、
前記第2材料は、PFT(polyethylene terephthalate)、PEN(ethylene naphthalate)、PI(polyimide)、PMMA(polymethyl methacrylate)、PC(polycarbonate)、PS(polystyrene)、及びPES(polyethersulfone)のいずれかから選択され、
前記有機発光素子アレイは、前記薄膜トランジスタアレイと前記封止基板との間に配置され、
前記バッファ基板、前記薄膜トランジスタアレイ、前記有機発光素子アレイ及び前記封止基板は、前記支持基板と前記ローリング補助フィルムとの間に、順番に配置され、
前記有機発光素子の光は前記支持基板を通して放出され、
前記ローリング補助フィルムは、少なくとも一つのベースと、前記少なくとも一つのベース上の複数の支柱パターンとを含み、前記複数の支柱パターンの側面は隣接する支柱パターンからある距離だけ離間される、
フレキシブル表示装置の製造方法。 - 前記第1の厚さは、50μm〜100μmの範囲に該当する、請求項8に記載のフレキシブル表示装置の製造方法。
- 第2の厚さは、3μm〜20μmの範囲に該当する、請求項9に記載のフレキシブル表示装置の製造方法。
- 前記支持基板を設けるステップの後、
前記バッファ基板及び前記薄膜トランジスタアレイを、前記バッファ基板の一部が前記支持基板の側縁上に配置され、かつ、前記薄膜トランジスタアレイの一部が前記支持基板の側縁の上方に配置されるように、前記支持基板の縁で曲げるステップと、
前記有機発光素子アレイから放出された光を偏光する偏光フィルムを前記支持基板上に配置するステップであって、前記支持基板は前記偏光フィルムと前記バッファ基板との間に配置される、ステップをさらに含む、請求項8に記載のフレキシブル表示装置の製造方法。 - 前記ローリング補助フィルムは、前記フレキシブル表示装置のローリング形態へのローリングを促し、前記複数の支柱パターンの配列方向は前記ローリング形態のローリング方向に対応する、請求項8に記載のフレキシブル表示装置の製造方法。
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