JP2019501400A - アレイ基板、その製造方法及び表示装置 - Google Patents
アレイ基板、その製造方法及び表示装置 Download PDFInfo
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- JP2019501400A JP2019501400A JP2017521204A JP2017521204A JP2019501400A JP 2019501400 A JP2019501400 A JP 2019501400A JP 2017521204 A JP2017521204 A JP 2017521204A JP 2017521204 A JP2017521204 A JP 2017521204A JP 2019501400 A JP2019501400 A JP 2019501400A
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Abstract
Description
本願は2015年10月15日に提出した中国特許出願No.201510665742.0の優先権を主張し、その全体が参照により本願に援用される。
単結晶シリコン層上にアレイ回路層を形成する工程。
単結晶シリコン層内の複数の薄膜トランジスタ(TFT)の各々のための活性領域を形成するように、マスクパターンに覆われた状態で単結晶シリコン層にイオン注入を行うサブ工程。
第1金属層と第1絶縁層上にそれらを覆うように第2絶縁層を形成するサブ工程と、
それぞれが第1絶縁層と第2絶縁層を貫通するように複数の第1ビアを形成するサブ工程と、
複数の第1ビア中であって第2絶縁層上に第2金属層を形成するサブ工程。ここで、第2絶縁層は複数の薄膜トランジスタ(TFT)のソース電極パターンとドレイン電極パターンを含み、複数の薄膜トランジスタ(TFT)のソース電極パターンとドレイン電極パターンは複数の第1ビアを介して単結晶層における活性領域に結合される。
複数の第2ビア内で平坦化層上であって複数の画素の各々のための領域内に陽極導電層を形成するサブ工程。
二酸化ケイ素(SiOx)層上に窒化ケイ素(SiNx)層を形成するサブ工程。
102b:トランジスタを複数備えるゲート電極パターンを含む第1金属層を第1絶縁層上に形成するサブ工程と、
102c:第1金属層と第1絶縁層上にこれらを覆うように第2絶縁層を形成するサブ工程と、
102d:第1絶縁層と第2絶縁層に複数の第1ビアを形成するサブ工程と、
102e:複数の第1ビア内であって第2絶縁層上に、複数のトランジスタのソース電極パターンとドレイン電極パターンを含む第2金属層を形成し、さらに複数のトランジスタのソース電極パターンとドレイン電極パターンを、複数の第1ビアを介して単結晶シリコン基板内の活性領域と接触させるサブ工程。
以上、具体的な実施形態について詳しく記載したが、説明のみを目的としている。従って、別途明確に記載しない限り、上記の方面の多くが要請されている、或いは不可欠であることを意図するものではないことが理解されよう。実施形態で例示した方面に対応する様々な変更及び同等の行為は、上記したものに加え、従来技術のおかげで、以下の請求項で定義される本開示の精神と範囲から逸脱せずに当業者が行えるものである。本開示の範囲については、かかる変更及び同等の構造が網羅されるように最も広範囲に解釈すべきである。
11a 活性領域
12 アレイ回路層
12a 画素回路
12b スキャン駆動回路
12c データ駆動回路
13 陽極導電層
21 絶縁層
22 金属層
23 絶縁層
24 金属層
25 平坦化層
31 画素定義層
32 有機発光層
33 陰極導電層
A1 中央表示領域
A2、A3 周辺領域
H1 ビア
H2 ビア
P0 画素領域
Claims (21)
- 単結晶シリコン層と、
前記単結晶シリコン層上に配置されたアレイ回路層と、を含むアレイ基板であって、
前記アレイ回路層はスキャン駆動回路と、データ駆動回路と、複数の画素回路とを含み、
前記スキャン駆動回路とデータ駆動回路は、複数のスキャンラインと複数のデータラインをそれぞれ制御して順に複数の画素を駆動するように構成され、
前記複数の画素回路の各々は、前記複数のスキャンラインのうちの少なくともひとつと前記複数のデータラインのうちの少なくともひとつの制御下で前記複数の画素のひとつを駆動して発光させるように構成され、
前記スキャン駆動回路と、前記データ駆動回路と、前記複数の画素回路は前記単結晶シリコン層に配置される活性領域をそれぞれ有する複数の薄膜トランジスタ(TFT)を含むことを特徴とするアレイ基板。 - 前記アレイ回路層が、
前記単結晶シリコン層上に配置される第1絶縁層と、
前記第1絶縁層上に配置され、前記複数の薄膜トランジスタ(TFT)のゲート電極パターンを含む第1金属層と、
前記第1金属層と前記第1絶縁層上にこれらを覆うように配置されている第2絶縁層と、
前記第2絶縁層上に配置され、前記複数の薄膜トランジスタ(TFT)のドレイン電極パターンとソース電極パターンを含む第2金属層と、
前記第1絶縁層と前記第2絶縁層を貫通するように設けられ、前記複数の薄膜トランジスタ(TFT)の前記ドレイン電極パターン又は前記ソース電極パターンを前記単結晶シリコン層における活性領域に結合するように構成されている複数の第1ビアと、をさらに含むことを特徴とする請求項1に記載のアレイ基板。 - 陽極導電層をさらに含み、
前記陽極導電層は、複数の画素の各々の領域内に設けられ、前記アレイ回路層の前記第2金属層上に配置され、複数の画素の各々の有機発光層の駆動電流を出力するように構成されていることを特徴とする請求項2に記載のアレイ基板。 - 前記アレイ回路層が平坦化層をさらに含み、
前記平坦化層は前記第2金属層と前記第2絶縁層上にこれらを覆うようにかつ前記陽極導電層の下方に配置され、
前記複数の画素の各々の領域内において、前記平坦化層に、前記第2金属層における前記複数のトランジスタの前記ソース電極パターン又は前記ドレイン電極パターンを前記陽極導電層に結合するように構成された第2ビアが設けられていることを特徴とする請求項3に記載のアレイ基板。 - 反射面が、前記陽極導電層の上面に設けられて前記有機発光層から発光される光線を反射するように構成されていることを特徴とする請求項4に記載のアレイ基板。
- 前記第1金属層が前記複数のスキャンラインのパターンと前記複数のデータラインのパターンのひとつを含み、前記第2金属層が前記複数のスキャンラインのパターンと前記複数のデータラインのパターンの別のひとつを含むことを特徴とする請求項2に記載のアレイ基板。
- 前記第1絶縁層と前記第2絶縁層の少なくともひとつが二酸化ケイ素(SiOx)層と窒化ケイ素(SiNx)層を含み、
前記二酸化ケイ素(SiOx)層と前記窒化ケイ素(SiNx)層がそれぞれ前記第1絶縁層と前記第2絶縁層の少なくともひとつの底部と上部に配置されていることを特徴とする請求項2に記載のアレイ基板。 - 前記複数の薄膜トランジスタ(TFT)がいずれもP‐型であることを特徴とする請求項1に記載のアレイ基板。
- 前記単結晶シリコン層の下方に配置され、前記単結晶シリコン層を支持するように構成された基板をさらに含む請求項1に記載のアレイ基板。
- 前記単結晶シリコン層がアレイ基板に用いる基板であることを特徴とする請求項1に記載のアレイ基板。
- 前記複数の画素回路、前記複数のスキャンライン及び前記複数のデータラインが中央表示領域内に設けられ、
前記スキャン駆動回路と前記データ駆動回路の両方が中央表示領域外に設けられていることを特徴とする請求項1に記載のアレイ基板。 - 請求項1〜11のいずれか1項に記載のアレイ基板を含む表示装置。
- 前記アレイ基板上で前記複数の画素の各々の領域内に配置され、駆動電流を印加されると光線を発光するように構成されている有機発光層をさらに含む請求項12に記載の表示装置。
- 前記有機発光層上で前記複数の画素の各々の領域内に配置される透明陰極導電層をさらに含む請求項13に記載の表示装置。
- 前記アレイ基板上に配置された画素定義層をさらに含み、
前記画素定義層は、前記有機発光層と前記透明陰極導電層を前記複数の画素の各々に配置するための開口を有することを特徴とする請求項14に記載の表示装置。 - 前記単結晶シリコン層に前記複数の薄膜トランジスタ(TFT)の各々のための活性領域を形成する工程と、
前記単結晶シリコン層上に前記アレイ回路層を形成する工程と、を含むことを特徴とする請求項1に記載のアレイ基板の製造方法。 - 前記単結晶シリコン層に前記複数の薄膜トランジスタ(TFT)の各々のための活性領を形成する工程は、
前記単結晶シリコン層上に、前記複数の薄膜トランジスタ(TFT)の各々のための前記活性領域外の領域を覆うようにマスクパターンを形成する工程と、
前記マスクパターンに覆われた状態で前記単結晶シリコン層へイオン注入を行い、前記単結晶シリコン層内で前記複数の薄膜トランジスタ(TFT)の各々のための前記活性領域を形成する工程と、を含むことを特徴とする請求項16に記載のアレイ基板の製造方法。 - 前記単結晶シリコン層上に前記アレイ回路層を形成する工程は、
前記単結晶シリコン層上に第1絶縁層を形成し、前記複数の薄膜トランジスタ(TFT)のゲート電極パターンを含む第1金属層を前記第1絶縁層上に形成する工程と、
前記第1金属層と前記第1絶縁層上に、前記第1金属層と前記第1絶縁層を覆うように第2絶縁層を形成する工程と、
それぞれ前記第1絶縁層と前記第2絶縁層を貫通するように複数の第1ビアを形成する工程と、
前記複数の第1ビア中であって前記第2絶縁層上に第2金属層を形成する工程と、を含み、
前記第2絶縁層は前記複数の薄膜トランジスタ(TFT)のソース電極パターンとドレイン電極パターンを含み、前記複数の薄膜トランジスタ(TFT)の前記ソース電極パターンと前記ドレイン電極パターンは前記複数の第1ビアを介して前記単結晶層における前記活性領域に結合されることを特徴とする請求項16又は17に記載のアレイ基板の製造方法。 - 前記単結晶シリコン層上に前記アレイ回路層を形成する工程は、
前記第2金属層と前記第2絶縁層上に、前記第2金属層と前記第2絶縁層を覆うように平坦化層を形成する工程をさらに含むことを特徴とする請求項18に記載のアレイ基板の製造方法。 - 前記単結晶シリコン層上に前記アレイ回路層を形成した後、
前記アレイ回路層上に陽極導電層を形成する工程をさらに含み、
前記アレイ回路層上に陽極導電層を形成する工程は、
それぞれが前記複数の画素の各々のための領域内において前記平坦化層を貫通する複数の第2ビアを形成する工程と、
前記複数の第2ビア内と前記平坦化層上であって前記複数の画素の各々のための領域内に陽極導電層を形成する工程と、を含む請求項19に記載のアレイ基板の製造方法。 - 前記第1絶縁層と前記第2絶縁層の少なくともひとつが二重積層プロセスにより形成され、
前記二重積層プロセスは、
二酸化ケイ素(SiOx)層を形成する工程と、
前記二酸化ケイ素(SiOx)層上に窒化ケイ素(SiNx)層を形成する工程と、を含むことを特徴とする請求項18に記載のアレイ基板の製造方法。
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WO2017063568A1 (en) | 2017-04-20 |
US20180212011A1 (en) | 2018-07-26 |
CN105185816A (zh) | 2015-12-23 |
KR20170068476A (ko) | 2017-06-19 |
EP3363046A1 (en) | 2018-08-22 |
US10622427B2 (en) | 2020-04-14 |
KR20190039355A (ko) | 2019-04-10 |
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