JP2005196179A - 反射透過型の液晶表示装置用アレイ基板とその製造方法 - Google Patents
反射透過型の液晶表示装置用アレイ基板とその製造方法 Download PDFInfo
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Abstract
【解決手段】基板上に形成された複数のゲート配線と、前記複数のゲート配線と交差して、透過部と反射部を含む画素領域を定義する、少なくとも1つ以上のデータ配線と、前記複数のゲート配線及び前記少なくとも1つ以上のデータ配線のうち、1つのゲート配線及びデータ配線に連結されて、ゲート電極、半導体層、ソース電極とドレイン電極を含む薄膜トランジスタと、前記薄膜トランジスタを覆い、前記ドレイン電極の一部と、前記画素領域を露出させる第1絶縁層と、前記ドレイン電極及び前記半導体層と直接的に接触して、画素領域に位置する透明電極と、第1凹凸表面を有して、前記反射部に位置する反射層とを備える。
【選択図】図5K
Description
図1は、一般的な反射透過型の液晶表示装置の概略的な斜視図である。図示したように、反射透過型の液晶表示パネル10は、上部基板及び下部基板と、前記上部基板及び下部基板間に介在された液晶層とで構成される。
本発明の望ましい実施の形態によると、凹凸状の反射電極を含む反射透過型の液晶表示装置用アレイ基板を形成する時、5マスク工程により製作することを特徴とする。
128 ドレイン電極、132 感光パターン、134 透明金属層。
Claims (17)
- 基板上に形成された複数のゲート配線と、
前記複数のゲート配線と交差して、透過部と反射部を含む画素領域を定義する、少なくとも1つ以上のデータ配線と、
前記複数のゲート配線及び前記少なくとも1つ以上のデータ配線のうち、1つのゲート配線及びデータ配線に連結されて、ゲート電極、半導体層、ソース電極及びドレイン電極を含む薄膜トランジスタと、
前記薄膜トランジスタを覆い、前記ドレイン電極の一部と、前記画素領域を露出させる第1絶縁層と、
前記ドレイン電極及び前記半導体層と直接的に接触して、画素領域に位置する透明電極と、
第1凹凸表面を有して、前記反射部に位置する反射層と
を含む反射透過型の液晶表示装置用アレイ基板。 - 前記反射層の下部に形成されて、前記第1凹凸表面と対応する第2凹凸表面を有する第2絶縁層をさらに含む
ことを特徴とする請求項1に記載の反射透過型の液晶表示装置用アレイ基板。 - 前記第1、第2凹凸表面は、半球形状である
ことを特徴とする請求項2に記載の反射透過型の液晶表示装置用アレイ基板。 - 前記反射層は、前記透明電極に連結される
ことを特徴とする請求項2に記載の反射透過型の液晶表示装置用アレイ基板。 - 前記第2絶縁層は、前記透明電極の一部を露出させる第1ホールを含み、前記反射層は、前記第1ホールを通じて前記透明電極に連結される
ことを特徴とする請求項4に記載の反射透過型の液晶表示装置用アレイ基板。 - 前記反射層は、前記透明電極の一部を露出させる第2ホールを含み、前記第2ホールは、前記画素領域の透過部に対応する
ことを特徴とする請求項5に記載の反射透過型の液晶表示装置用アレイ基板。 - 前記第2絶縁層は、ベンゾシクロブテンBCB及びアクリル(acryl)系樹脂(resin)を含む有機物質のうちの1つから選択される
ことを特徴とする請求項2に記載の反射透過型の液晶表示装置用アレイ基板。 - 前記第1絶縁層は、前記透明電極から分離される
ことを特徴とする請求項1に記載の反射透過型の液晶表示装置用アレイ基板。 - 前記透明電極は、前記ドレイン電極の露出部と直接的に接触する
ことを特徴とする請求項8に記載の反射透過型の液晶表示装置用アレイ基板。 - 前記反射層は、電気的に分離されている
ことを特徴とする請求項1に記載の反射透過型の液晶表示装置用アレイ基板。 - 基板上に、複数のゲート配線を形成する段階と、
前記複数のゲート配線と交差して、透過部と反射部とを含む画素領域を定義する、少なくとも1つ以上のデータ配線と、前記少なくとも1つ以上のデータ配線に連結されるソース電極と、前記ソース電極から離隔されるように位置するドレイン電極とを含む薄膜トランジスタを形成する段階と、
前記薄膜トランジスタを覆い、前記画素領域及び前記ドレイン電極の一部を露出させる第1絶縁層を形成する段階と、
前記ドレイン電極及び半導体層と直接的に接触して、前記画素領域に位置する透明電極を形成する段階と、
前記透明電極上に、第1凹凸表面を有する第2絶縁層を形成する段階と、
前記第1凹凸表面と対応する第2凹凸表面を有して、前記反射部に位置する反射層を形成する段階と
を含む反射透過型の液晶表示装置用アレイ基板の製造方法。 - 前記少なくとも1つのデータ配線と、前記ソース電極と、前記ドレイン電極とを形成する段階は、前記少なくとも1つ以上のデータ配線と、前記ソース電極と、前記ドレイン電極との下部に半導体層を形成する段階を含み、前記半導体層パターンは、前記少なくとも1つ以上のデータ配線、前記ソース電極、前記ドレイン電極、これらのパターンと対応する
ことを特徴とする請求項11に記載の反射透過型の液晶表示装置用アレイ基板の製造方法。 - 前記少なくとも1つ以上のデータ配線と、前記ソース電極と、前記ドレイン電極とを形成する段階は、
前記複数のゲート配線を含む基板全体の表面に、ゲート絶縁膜を形成する段階と、
前記ゲート絶縁膜上に純粋非晶質シリコン層と、前記純粋非晶質シリコン層上に不純物非晶質シリコン層と、前記不純物非晶質シリコン層上に金属層とを連続的に形成する段階と、
第1、第2領域を有して、前記第1領域が前記第2領域より薄い第1フォトーレジストパターンを形成し、遮断手段として前記第1フォトーレジストパターンを利用して、前記金属層、前記不純物非晶質シリコン層、前記純粋非晶質シリコン層をエッチングする段階と、
前記第1フォトーレジストパターンの第1領域を除去して、前記純粋非晶質シリコン層の露出された領域に対応する領域をチャンネル領域で定義するために、前記不純物非晶質シリコン層及び前記金属層の前記露出された領域と対応する領域を除去する段階と
を含むことを特徴とする請求項11に記載の反射透過型の液晶表示装置用アレイ基板の製造方法。 - 前記第1絶縁層を形成する段階は、
前記第1絶縁物質を前記薄膜トランジスタを含む基板全面に形成する段階と、
前記第1絶縁層の上部に、前記薄膜トランジスタと対応する領域に位置して、前記画素領域及び前記ドレイン電極の一部と対応する領域を露出させる第2フォトーレジストパターンを形成する段階と、
前記第2フォトーレジストパターンを利用して、前記露出された第1絶縁物質領域を除去して、前記第1絶縁層を形成する段階と
を含むことを特徴とする請求項11に記載の反射透過型の液晶表示装置用アレイ基板の製造方法。 - 前記透明電極を形成する段階は、
前記第2フォトーレジストパターンを含み、前記第1絶縁層が形成された前記基板全面に、透明物質層を形成する段階と、
前記第2フォトーレジストパターンのリフティングオフ(lifting off)によって、前記第2フォトーレジストパターン上に形成された前記透明物質領域と、前記第2フォトーレジストパターンを同時に除去する段階と
を含むことを特徴とする請求項14に記載の反射透過型の液晶表示装置用アレイ基板の製造方法。 - 前記第2絶縁層は、前記ドレイン電極の露出部に対応する前記透明電極領域を露出する第1ホールを含む
ことを特徴とする請求項11に記載の反射透過型の液晶表示装置用アレイ基板の製造方法。 - 前記反射層は、前記第1ホールを通じて前記透明電極に連結される
ことを特徴とする請求項16に記載の反射透過型の液晶表示装置用アレイ基板の製造方法。
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JP2007047533A (ja) * | 2005-08-11 | 2007-02-22 | Sanyo Epson Imaging Devices Corp | 電気光学装置及び電子機器 |
JP2018513413A (ja) * | 2015-06-24 | 2018-05-24 | 深▲せん▼市華星光電技術有限公司Shenzhen China Star Optoelectronics Technology Co., Ltd. | 薄膜トランジスタ配列基板及其製作方法 |
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US7884909B2 (en) | 2011-02-08 |
DE102004063529A1 (de) | 2005-08-04 |
DE102004063529B4 (de) | 2009-01-08 |
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US20050140874A1 (en) | 2005-06-30 |
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