JP2019533832A - フレキシブル表示装置及びその製造方法 - Google Patents
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Abstract
Description
図1は本発明の実施例1のフレキシブル表示装置の構造模式図である。図1に示すように、フレキシブル表示装置はフレキシブル基板10及びフレキシブル基板10に形成される電源線11を含み、電源線11は導電層110を含み、導電層110に貫通穴111を有する。貫通穴111によって電源線11を折り曲げる際に生じた応力を分散させることができ、それによりフレキシブル表示装置を曲げ又は折り畳む際に電源線にクラック又は割れが発生することを避け、電源線の折り曲げ時の品質及び信頼性を向上させる。
図2は本発明の実施例2のフレキシブル表示装置の構造模式図である。図2に示すように、フレキシブル表示装置はフレキシブル基板20及びフレキシブル基板20に形成される電源線21を含み、電源線21は導電層210を含み、導電層210に貫通穴211を有する。貫通穴211によって電源線21を折り曲げる際に生じた応力を分散させることができるため、フレキシブル表示装置を曲げ又は折り畳む際に電源線にクラック又は割れが発生することを避け、電源線の折り曲げ時の品質及び信頼性を向上させる。
図3は本発明の実施例3のフレキシブル表示装置の構造模式図である。図3に示すように、フレキシブル表示装置はフレキシブル基板30及びフレキシブル基板30に形成される電源線31を含み、電源線31は導電層310を含み、導電層310に貫通穴311を有する。貫通穴311によって電源線31を折り曲げる際に生じた応力を分散させることができ、それによりフレキシブル表示装置を曲げ又は折り畳む際に電源線にクラック又は割れが発生することを避け、電源線の折り曲げ時の品質及び信頼性を向上させる。
図4は本発明の実施例4のフレキシブル表示装置の構造模式図である。図4に示すように、フレキシブル表示装置はフレキシブル基板40及びフレキシブル基板40に形成される電源線41を含み、電源線41は導電層410を含み、導電層410に貫通穴411を有する。貫通穴411によって電源線41を折り曲げる際に生じた応力を分散させることができ、それによりフレキシブル表示装置を曲げ又は折り畳む際に電源線にクラック又は割れが発生することを避け、電源線の折り曲げ時の品質及び信頼性を向上させる。
図5は本発明の実施例5のフレキシブル表示装置の構造模式図である。図5に示すように、本発明の実施例5に係るフレキシブル表示装置は順に上から下まで(図5に示す上から下まで)積層配列された導電層4、絶縁層2及びフレキシブル基板3を含み、上から下まで積層配列された導電層4、絶縁層2及びフレキシブル基板3が延在方向に沿って折り曲げ領域N2及び非折り曲げ領域N1に区画され、折り曲げ領域N2の導電層4の厚さが非折り曲げ領域N1の導電層4の厚さより厚く、つまり折り曲げ領域N2の導電層4の下縁(下縁が図5に示す積層設置方向における下縁である)及び非折り曲げ領域N1の導電層4の下縁(下縁が図5に示す積層設置方向における下縁である)が同一水平線に位置し(つまり共線する)、折り曲げ領域N2の導電層4の上縁(上縁が図5に示す積層設置方向における上縁である)が水平方向に沿って非折り曲げ領域N1の導電層4の上縁(上縁が図5に示す積層設置方向における上縁である)より低い。
R1=ρL/S1 (1)
である。
図6は本発明の実施例6のフレキシブル表示装置の構造模式図である。本発明の実施例5を基に、本発明の実施例6を実現し、本発明の実施例6は実施例5とほぼ同様であり、以下、主に相違点について説明し、同じ部分についてはさらに説明しない。図6に示すように、本発明の実施例6に係るフレキシブル表示装置の非折り曲げ領域N1の導電層4の上縁(上縁が図6に示す積層設置方向における上縁である)が延在方向(つまり水平方向)に沿って折り曲げ領域N2の導電層4の上縁(上縁が図6に示す積層設置方向における上縁である)より高く、且つ非折り曲げ領域N1の導電層4の下縁(下縁が図6に示す積層設置方向における下縁である)が延在方向(つまり水平方向)に沿って折り曲げ領域N2の導電層4の下縁(下縁が図6に示す積層設置方向における下縁である)より低い。
図7aは本発明の実施例7のフレキシブル表示装置の薄膜トランジスタ構造の構造模式図である。図7bは本発明の実施例7のフレキシブル表示装置の薄膜トランジスタ構造のゲート電極の投影模式図である。図7aに示すように、薄膜トランジスタ構造のゲート電極1は薄膜トランジスタ構造のチャネル層72の上方に設置されるトップゲート71及びチャネル層72の下方に設置されるボトムゲート73を含んでもよい。トップゲート71に少なくとも1つの貫通穴711が設置される。図7bに示すように、トップゲート71における貫通穴711のチャネル層72に平行する平面82での投影811が、ボトムゲート73の平面82への投影83にカバーされる。
図9は本発明の実施例9のフレキシブル表示装置の薄膜トランジスタ構造のゲート電極の製造フローチャートである。図9に示すように、本発明の実施例9は薄膜トランジスタ構造のゲート電極の製造方法を提供し、該ゲート電極1の製造方法は、次のようなステップを含むことができる。
図10は本発明の実施例10のフレキシブル表示装置の折り曲げ性能試験データの折れ線グラフである。本発明の実施例10では、折り曲げ性能試験を行う際に用いた電源線が500μm幅の金属線であり、その導電層は保護層に被覆されていない(つまりテスト部分が電源線の非AA領域、非表示領域である)。図10に示すように、図10における座標の横軸が電源線の貫通穴の穴径を示し、座標の縦軸が電源線の耐折り曲げ回数を示す。本発明の実施例の折り曲げ性能試験において、保護層なしの電源線の貫通穴の異なる穴径における耐折り曲げ回数を複数回テストすることにより、図10に示す折り曲げ性能試験データの折れ線グラフを形成した。
図11は本発明の実施例11のフレキシブル表示装置の折り曲げ性能試験データの折れ線グラフである。本発明の実施例11は折り曲げ性能試験を行う際に用いた電源線が500μm幅の金属線であり、その導電層が保護層に被覆されている(つまりテスト部分が電源線のAA領域、表示領域である)。図11に示すように、図11における座標の横軸が電源線の貫通穴の穴径を示し、座標の縦軸が電源線の耐折り曲げ回数を示す。本発明の実施例の折り曲げ性能試験において、保護層付きの電源線の貫通穴の異なる穴径における耐折り曲げ回数を複数回テストすることにより、図11に示す折り曲げ性能試験データの折れ線グラフを形成した。
図5は本発明の実施例5のフレキシブル表示装置の構造模式図である。図5に示すように、本発明の実施例5に係るフレキシブル表示装置は順に上から下まで(図5に示す上から下まで)積層配列された導電層4、絶縁層2及びフレキシブル基板3を含み、上から下まで積層配列された導電層4、絶縁層2及びフレキシブル基板3が延在方向に沿って折り曲げ領域N2及び非折り曲げ領域N1に区画され、折り曲げ領域N2の導電層4の厚さが非折り曲げ領域N1の導電層4の厚さより小さく、つまり折り曲げ領域N2の導電層4の下縁(下縁が図5に示す積層設置方向における下縁である)及び非折り曲げ領域N1の導電層4の下縁(下縁が図5に示す積層設置方向における下縁である)が同一水平線に位置し(つまり共線する)、折り曲げ領域N2の導電層4の上縁(上縁が図5に示す積層設置方向における上縁である)が水平方向に沿って非折り曲げ領域N1の導電層4の上縁(上縁が図5に示す積層設置方向における上縁である)より低い。
Claims (15)
- フレキシブル基板と、前記フレキシブル基板に形成された導電層とを含み、前記導電層に少なくとも1つの凹部領域が設置されることを特徴とするフレキシブル表示装置。
- 前記導電層が前記フレキシブル基板における電源線を構成することを特徴とする請求項1に記載のフレキシブル表示装置。
- 前記凹部領域のすべての側辺のうち最長の側辺、又は前記凹部領域の側辺の2点を接続するすべての側辺接続線のうち最長の側辺接続線が、前記フレキシブル表示装置の折り曲げ方向に一致することを特徴とする請求項1に記載のフレキシブル表示装置。
- 前記凹部領域は貫通穴及び/又はメクラ穴を含むことを特徴とする請求項1〜3のいずれか一項に記載のフレキシブル表示装置。
- 前記導電層及び前記フレキシブル基板が延在方向に沿って折り曲げ領域及び非折り曲げ領域に分けられ、前記少なくとも1つの凹部領域が前記導電層の折り曲げ領域に設置され、
前記折り曲げ領域の前記導電層の厚さが前記非折り曲げ領域の前記導電層の厚さより厚いことを特徴とする請求項1に記載のフレキシブル表示装置。 - 前記フレキシブル表示装置が薄膜トランジスタ構造を用い、前記導電層が前記フレキシブル表示装置のソース電極、ドレイン電極、ゲート電極、陰極又は陽極に電気的に接続されるか、又は、前記導電層が前記フレキシブル表示装置のソース電極、ドレイン電極、ゲート電極、陰極又は陽極を構成することを特徴とする請求項1に記載のフレキシブル表示装置。
- 前記導電層の前記少なくとも1つの凹部領域に有機材料が充填されることを特徴とする請求項1に記載のフレキシブル表示装置。
- 前記少なくとも1つの凹部領域が前記フレキシブル表示装置の折り曲げ線方向に沿って1行又は複数行に設置されていることを特徴とする請求項1に記載のフレキシブル表示装置。
- 複数行に設置されている前記凹部領域が位置を揃えて配列されるか、又は千鳥配列されていることを特徴とする請求項8に記載のフレキシブル表示装置。
- 同一列の1つの凹部領域の線幅方向における断面幅又は同一列の複数の凹部領域の線幅方向における断面幅の和と前記導電層の線幅との比率が1/2以下であることを特徴とする請求項9に記載のフレキシブル表示装置。
- 同一行の隣接する2つの凹部領域間の最小ピッチと前記フレキシブル表示装置の折り曲げ方向に一致する側辺又は側辺接続線との比率が1/2以上2以下であることを特徴とする請求項9に記載のフレキシブル表示装置。
- 前記少なくとも1つの凹部領域で構成される形状の、前記フレキシブル基板に平行な平面又は前記フレキシブル基板に垂直な平面への投影は、矩形、三角形、台形、菱形、円形、楕円形、正弦波状、ツイスト状及び鋸歯状のうちの1つ又は複数の組み合わせを含むことを特徴とする請求項1に記載のフレキシブル表示装置。
- 前記導電層に設置される保護層を含み、前記保護層に被覆される前記導電層の前記凹部領域の穴径と前記導電層の幅との比率が0.1より小さいことを特徴とする請求項1に記載のフレキシブル表示装置。
- 前記導電層に設置される保護層を含み、前記保護層に被覆されていない前記導電層の前記凹部領域の穴径と前記導電層の幅との比率が0.08より大きいことを特徴とする請求項1に記載のフレキシブル表示装置。
- フレキシブル基板を形成することと、
電源線に要求される抵抗を決定することと、
電源線に要求される抵抗に応じて、導電層の線幅及び凹部領域のデータを取得することと、
導電層の線幅及び凹部領域のデータに基づいて、フレキシブル基板に電源線を形成することと、を含むことを特徴とする請求項2のフレキシブル表示装置の製造方法。
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JP2014197181A (ja) * | 2013-03-07 | 2014-10-16 | 株式会社半導体エネルギー研究所 | 表示装置 |
CN203368913U (zh) * | 2013-07-11 | 2013-12-25 | 昆山龙腾光电有限公司 | 柔性线路板 |
JP2016027374A (ja) * | 2014-06-13 | 2016-02-18 | 株式会社半導体エネルギー研究所 | 表示装置 |
US20150382446A1 (en) * | 2014-06-30 | 2015-12-31 | Lg Display Co., Ltd. | Flexible display device with reduced bend stress wires and manufacturing method for the same |
JP2016208024A (ja) * | 2015-04-15 | 2016-12-08 | 株式会社半導体エネルギー研究所 | 電極及び半導体装置の作製方法 |
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TW201841557A (zh) | 2018-11-16 |
CN108257971A (zh) | 2018-07-06 |
KR20190045353A (ko) | 2019-05-02 |
TWI656813B (zh) | 2019-04-11 |
CN108257971B (zh) | 2019-07-05 |
JP7312104B2 (ja) | 2023-07-20 |
US20190237490A1 (en) | 2019-08-01 |
EP3564998A1 (en) | 2019-11-06 |
EP3564998A4 (en) | 2019-12-25 |
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