JP2022523603A - 透明積層フィルム、表示装置及び透明積層フィルムの製造方法 - Google Patents
透明積層フィルム、表示装置及び透明積層フィルムの製造方法 Download PDFInfo
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Abstract
Description
(1)本開示の実施例の図面は本開示の実施例に関する構成のみに関し、他の構成は通常の設計を参照してもよい。
(2)明確にするために、本開示の実施例を説明するための図面では、層又は領域の厚さは拡大又は縮小されており、すなわち、それらの図面は実際の比例で作成するものではない。なお、層、フィルム、領域や基板などの素子が他の素子「上」又は「下」に位置すると記載される場合、かかる素子は他の素子「上」又は「下」に「直接」位置してもよく、又は中間素子が存在してもよい。
(3)矛盾しない場合、本開示の実施例及び実施例の特徴は互いに組み合わせて新たな実施例を得ることができる。
Claims (21)
- 表示パネルの表示側に被覆され、順に積層される第1のフィルム層と、中間フィルム層と、第2のフィルム層とを備える透明積層フィルムであって、
前記第1のフィルム層と前記第2のフィルム層は、熱可塑性プラスチックであり、
前記中間フィルム層は、熱硬化性プラスチックである、
透明積層フィルム。 - 前記熱可塑性プラスチックは、熱可塑性ポリイミドであり、
前記熱硬化性プラスチックは、熱硬化性ポリイミドである、
請求項1に記載の透明積層フィルム。 - 前記中間フィルム層の透過率は、前記第1のフィルム層と前記第2のフィルム層の透過率より大きい、
請求項1又は2に記載の透明積層フィルム。 - 前記中間フィルム層の弾性率は、前記第1のフィルム層の弾性率と前記第2のフィルム層の弾性率より大きい、
請求項1~3のいずれか1項に記載の透明積層フィルム。 - 前記中間フィルム層の透過率は、90%より大きく、
前記中間フィルム層の弾性率は、6GPaより大きい、
請求項1~4のいずれか1項に記載の透明積層フィルム。 - 前記第1のフィルム層と前記第2のフィルム層の少なくとも一方の透過率は、70%より大きく、
前記第1のフィルム層と前記第2のフィルム層の少なくとも一方の弾性率は、2.5GPaより大きい、
請求項1~5のいずれか1項に記載の透明積層フィルム。 - 前記透明積層フィルムの総合透過率は、85%より大きく、
前記透明積層フィルムの総合弾性率は、5.5GPaより大きい、
請求項1~6のいずれか1項に記載の透明積層フィルム。 - 前記中間フィルム層の厚さは、50~80μmであり、
前記第1のフィルム層と前記第2のフィルム層の少なくとも一方の厚さは、5~10μmである、
請求項1~7のいずれか1項に記載の透明積層フィルム。 - 前記第1のフィルム層、前記第2のフィルム層及び前記中間フィルム層の吸湿率は、1.0未満であり、
前記透明積層フィルムの総合吸湿率は、1.0未満である、
請求項1~8のいずれか1項に記載の透明積層フィルム。 - 前記中間フィルム層のガラス転移温度は、400℃より高く、
前記第1のフィルム層と前記第2のフィルム層の少なくとも一方のガラス転移温度は、220~260℃である、
請求項1~9のいずれか1項に記載の透明積層フィルム。 - 前記第1のフィルム層、前記中間フィルム層及び前記第2のフィルム層は、ホットプレスにより直接積層されてなる、
請求項1~10のいずれか1項に記載の透明積層フィルム。 - 前記第1のフィルム層又は前記第2のフィルム層の前記中間フィルム層から離れる一側に積層され、硬度が前記第1のフィルム層又は前記第2のフィルム層の硬度より大きい保護層をさらに備える、
請求項1~11のいずれか1項に記載の透明積層フィルム。 - 前記保護層の厚さは、5~10μmである、
請求項12に記載の透明積層フィルム。 - 表示パネルと、
前記表示パネルの表示側に被覆されている請求項1~13のいずれか1項に記載の透明積層フィルムと、
を備える表示装置。 - 前記表示パネルは、フレキシブル有機発光ダイオード表示パネルである、
請求項14に記載の表示装置。 - 前記表示パネルと前記透明積層フィルムとの間に積層して設置されている、偏光板とタッチ構成層をさらに備える、
請求項14又は15に記載の表示装置。 - 前記透明積層フィルムは、
前記透明積層フィルムの前記表示パネルから離れる一側に積層され、硬度が前記第1のフィルム層又は前記第2のフィルム層の硬度より大きい保護層をさらに備える、
請求項14又は15に記載の表示装置。 - 請求項1~13のいずれか1項に記載の透明積層フィルムの製造方法であって、
前記第1のフィルム層と前記第2のフィルム層をそれぞれ前記中間フィルム層の両側にホットプレスして積層することを含む、
透明積層フィルムの製造方法。 - 前記ホットプレスは、ローラによるホットプレス又はラミネートプレートによるホットプレスを含む、
請求項18に記載の製造方法。 - 前記ホットプレスは、温度が300~350℃であり、圧力が0.8~1.0ニュートンであり、持続時間が10~30秒である、
請求項18に記載の製造方法。 - 前記第1のフィルム層又は前記第2のフィルム層の前記中間フィルム層から離れる一側に、硬度が前記第1のフィルム層又は前記第2のフィルム層の硬度より大きい保護層を形成することをさらに含む、
請求項18に記載の製造方法。
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