JP2013065028A - 液晶パネル用基板、液晶パネル、電子機器及び投射型表示装置 - Google Patents
液晶パネル用基板、液晶パネル、電子機器及び投射型表示装置 Download PDFInfo
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Abstract
【解決手段】反射電極となる画素電極(14)と、画素電極への電圧印加を制御するスイッチング素子とを有する画素単位が基板上にマトリックス状に配置されてなる液晶パネル用基板において、両素電極とスイッチング素子の端子電極を構成する導電層(6a)との間に、両者を接続するためのコンタクトホールを形成し、このコンタクトホールの形成箇所を囲む開口を有し、隣接する複数の画素電極の間の領域には開口を有さない遮光層を、画素電極と導電層との間に設けることにより、画素電極どうしの隙間から漏込む光による弊害を防ぐ。
【選択図】図1
Description
図1および図3は、本発明を適用した反射型液晶パネルの反射電極側基板の第1の実施例を示す。なお、図1および図3にはマトリックス状に配置されている画素のうち一画素部分の断面図と平面レイアウトを示す。図1(a)は図3におけるI−I線に沿った断面を示す。図1(b)は同じく図3におけるII−II線に沿った断面を示す。
以上の説明では半導体基板を用いた液晶パネル用基板の構成及びそれを用いた液晶パネルについて説明してきたが、以下にはガラス等の絶縁性基板を用いた反射型液晶パネル用基板の構造について説明する。
図8は、本発明の液晶パネルを用いた電子機器の一例であり、本発明の反射型液晶パネルをライトバルブとして用いたプロジェクタ(投写型表示装置)の要部を平面的に見た概略構成図である。この図8は、光学要素130の中心を通って配置した光源部110、インテグレータレンズ120、偏光変換素子130から概略構成される偏光照明装置100、偏光照明装置100から出射されたS偏光束をS偏光束反射面201により反射させる偏光ビームスプリッタ200、偏光ビームスプリッタ200のS偏光反射面201から反射された光のうち、青色光(B)の成分を分離するダイクロイックミラー412、分離された青色光(B)を青色光を変調する反射型液晶ライトバルブ300B、青色光が分離された後の光束のうち赤色光(R)の成分を反射させて分離するダイクロイックミラー413、分離された赤色光(R)を変調する反射型液晶ライトバルブ300R、ダイクロイックミラー413を透過する残りの緑色光(G)を変調する反射型液晶ライトバルブ300G、3つの反射型液晶ライトバルブ300R、300G、300Bにて変調された光をダイクロイックミラー412,413、偏光ビームスプリッタ200にて合成し、この合成光をスクリーン600に投写する投写レンズからなる投写光学系500から構成されている。上記3つの反射型液晶ライトバルブ300R、300G、300Bには、それぞれ前述の液晶パネルが用いられている。
また、前記第1遮光層は、隣り合う前記反射電極の間隙を覆うように設けられていることを特徴とする。
また、前記画素領域の外側において、前記第1遮光層と同一層に、前記駆動回路を構成するスイッチング素子に接続された配線を有することを特徴とする。
また、前記画素領域の外側において、前記第1遮光層と同一層に、前記駆動回路と重なるように設けられた第3遮光層を有することを特徴とする。
Claims (7)
- 反射電極となる画素電極と、該画素電極への電圧印加を制御するスイッチング素子とを有する単位画素が基板にマトリックス状に配置されてなる液晶パネル用基板において、
前記画素電極と前記スイッチング素子を電気的に接続するための接続導電体形成個所を囲む開口を有し、隣接する複数の前記画素電極の間の領域には開口を有さない遮光層を、前記画素電極と前記スイッチング素子の間に設けてなり、
前記画素電極と前記遮光層の間に層間絶縁膜が配置され、
隣接する複数の前記画素電極の間の領域において、前記遮光層の表面に、対向する斜面を有するV字状の溝を形成してなる
ことを特徴とする液晶パネル用基板。 - 前記画素電極と前記遮光層との間に反射防止膜を設けてなることを特徴とする請求項1記載の液晶パネル用基板。
- 前記反射防止膜は前記画素電極の下面に設けてなることを特徴とする請求項2記載の液晶パネル用基板。
- 前記反射防止膜は前記遮光層の表面、もしくは前記層間絶縁膜の中間に設けてなることを特徴とする請求項2記載の液晶パネル用基板。
- 請求項1乃至4のいずれかに記載の液晶パネル用基板とこれに対向する基板との間に液晶を挟持して構成されることを特徴とする液晶パネル。
- 請求項5記載の液晶パネルを表示部として備えることを特徴とする電子機器。
- 光源と、前記光源からの光を変調する請求項5記載の液晶パネルと、前記液晶パネルにより変調された光を集光し投写する投写光学手段とを備えることを特徴とする投写型表示装置。
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2003
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2006
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2007
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2008
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2011
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2012
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Also Published As
Publication number | Publication date |
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US20110170025A1 (en) | 2011-07-14 |
US6831623B2 (en) | 2004-12-14 |
US20140111720A1 (en) | 2014-04-24 |
US20080129897A1 (en) | 2008-06-05 |
US7154460B2 (en) | 2006-12-26 |
US20120224112A1 (en) | 2012-09-06 |
JP5370572B2 (ja) | 2013-12-18 |
JP4702416B2 (ja) | 2011-06-15 |
JP3728755B2 (ja) | 2005-12-21 |
US20010043175A1 (en) | 2001-11-22 |
JP2014029530A (ja) | 2014-02-13 |
JP5168364B2 (ja) | 2013-03-21 |
US8208101B2 (en) | 2012-06-26 |
JP5668808B2 (ja) | 2015-02-12 |
US20060250548A1 (en) | 2006-11-09 |
US7932974B2 (en) | 2011-04-26 |
JP2008262247A (ja) | 2008-10-30 |
WO1998018044A1 (fr) | 1998-04-30 |
US20040075629A1 (en) | 2004-04-22 |
US7339567B2 (en) | 2008-03-04 |
US8634045B2 (en) | 2014-01-21 |
JP2011141547A (ja) | 2011-07-21 |
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