JP4420462B2 - 液晶表示装置及びその製造方法 - Google Patents
液晶表示装置及びその製造方法 Download PDFInfo
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
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- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
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Description
図4は、本発明の第1実施形態によるポリシリコン型の液晶表示パネルのうち、TFT基板の一部分を示す平面図であり、図5は、図4に示したTFT基板をII−II’線に沿って切断した断面図である。
図7は、本発明の第1実施形態によるポリシリコン型の液晶表示パネル、及びその合着過程を示す平面図である。
図15は、本発明の第3実施形態によるポリシリコン型の液晶表示パネル、及びその合着過程を示す平面図である。
24S、124S、224S ソースコンタクトホール、24D、124D、224D ドレインコンタクトホール、26、118、218 層間絶縁膜、30、130、230 TFT、101、201 透明導電層、103、203 金属層、120、220 透過ホール、122A、222A 画素電極の境界線、152、252 ストレージライン
160、260 ストレージキャパシタ、170、270 TFT基板、180、280、380 ブラックマトリックス、182、282、382 開口部、190、290、390 カラーフィルタ基板、380A ブリッジ。
Claims (37)
- 第1基板及び第2基板と、
前記第1基板上に形成される第1活性層及び第2活性層と、
前記第1活性層及び前記第2活性層上に形成される第1絶縁膜と、
前記第1絶縁膜上に同一工程で形成されるゲート電極、ゲートライン、及び画素電極を含む第1導体パターンと、
前記第1導体パターン上に形成されて、前記第1活性層のソース領域及びドレイン領域をそれぞれ露出させるように形成される第1コンタクトホール及び第2コンタクトホールと、前記画素電極を露出させるように形成される透過ホールとを備える第2絶縁膜と、
前記第2絶縁膜上に形成されるデータライン、ソース電極、及びドレイン電極と、
前記第2基板上に形成され、前記画素電極及び前記ドレイン電極と部分的に重なる開口部を有したブラックマトリックスと、
前記第1基板と前記第2基板との間の液晶層と
を備えることを特徴とする液晶表示装置。 - 前記ゲートラインと、前記ゲートラインと接続されたゲート電極及び前記画素電極とが二重層構造を有することを特徴とする請求項1に記載の液晶表示装置。
- 前記ゲートラインと平行なストレージラインをさらに備えることを特徴とする請求項1に記載の液晶表示装置。
- 前記ストレージラインが二重層構造を有することを特徴とする請求項3に記載の液晶表示装置。
- 前記ドレイン電極が前記ストレージラインに沿って形成され、前記データラインの両側と隣接したことを特徴とする請求項3に記載の液晶表示装置。
- 前記ドレイン電極は、前記ストレージラインと隣接した前記画素電極の一部分を取り囲むことを特徴とする請求項3に記載の液晶表示装置。
- 前記ドレイン電極は、前記ブラックマトリックスの開口部、及び前記ストレージラインと前記画素電極との間の重畳部と重なることを特徴とする請求項6に記載の液晶表示装置。
- 前記ブラックマトリックスの開口部と重なった前記ドレイン電極の一部分が、光を反射させることを特徴とする請求項7に記載の液晶表示装置。
- 前記ドレイン電極が前記ストレージラインを横切って、前記画素電極と接続されることを特徴とする請求項3に記載の液晶表示装置。
- 前記ゲートラインと前記データラインとの間の絶縁膜をさらに備えることを特徴とする請求項1に記載の液晶表示装置。
- 前記画素電極は、前記絶縁膜を貫通する透過ホールを通じて露出されることを特徴とする請求項10に記載の液晶表示装置。
- 前記画素電極の金属層が、前記透過ホールの周囲を取り囲むことを特徴とする請求項11に記載の液晶表示装置。
- 前記ソース電極と前記ドレイン電極との間の第1活性層をさらに備えることを特徴とする請求項1に記載の液晶表示装置。
- 前記第1活性層から伸張された第2活性層と前記ストレージラインとの間に重なった第1ストレージキャパシタをさらに備えることを特徴とする請求項13に記載の液晶表示装置。
- 前記ドレイン電極と前記ストレージラインとの間に重なった第2ストレージキャパシタをさらに備えることを特徴とする請求項14に記載の液晶表示装置。
- 前記ブラックマトリックスは、前記開口部を横切るブリッジをさらに備えることを特徴とする請求項1に記載の液晶表示装置。
- 前記ブリッジは、前記ドレイン電極の段差部を覆うことを特徴とする請求項16に記載の液晶表示装置。
- 前記ブリッジは、前記ドレイン電極の前記段差部での光漏れを防止することを特徴とする請求項16に記載の液晶表示装置。
- 前記ブラックマトリックスの開口部は、前記画素電極の第1境界の外側部分及び前記画素電極の第2境界の内側部分に形成されることを特徴とする請求項1に記載の液晶表示装置。
- 第1基板及び第2基板を提供する工程と、
前記第1基板上に第1活性層及び第2活性層を形成する工程と、
前記第1活性層及び前記第2活性層上に第1絶縁膜を形成する工程と、
前記第1絶縁膜上にゲート電極、ゲートライン、及び画素電極を含む第1導体パターンを同時に形成する工程と、
前記第1導体パターン上に第2絶縁膜を形成する工程と、
前記第2絶縁膜に前記第1活性層のソース領域及びドレイン領域をそれぞれ露出させるように第1コンタクトホール及び第2コンタクトホールを形成し、前記画素電極を露出させるように透過ホールを形成する工程と、
前記第2絶縁膜上にデータライン、ソース電極、及びドレイン電極を形成する工程と、
前記画素電極及び前記ドレイン電極と部分的に重なる開口部を有したブラックマトリックスを、前記第2基板上に形成する工程と、
前記第1基板と前記第2基板との間に液晶層を形成する工程と
を含むことを特徴とする液晶表示装置の製造方法。 - 前記ゲートラインと平行にストレージラインを形成する工程をさらに含むことを特徴とする請求項20に記載の液晶表示装置の製造方法。
- 前記ブラックマトリックスの開口部は、前記画素電極の第1境界の外側部分及び前記画素電極の第2境界の内側部分に形成されることを特徴とする請求項20に記載の液晶表示装置の製造方法。
- 第1基板及び第2基板を提供する工程と、
前記第1基板上にバッファ層を形成する工程と、
前記バッファ層に第1活性層及び第2活性層を形成する工程と、
前記第1活性層及び前記第2活性層上に第1絶縁膜を形成する工程と、
ゲート電極、ゲートライン、ストレージライン及び画素電極を備え、金属層が透明導電層上に形成される二重層構造を有した第1導電パターンを形成する工程と、
前記第1導電パターン上に第2絶縁膜を形成する工程と、
前記第1活性層のソース領域及びドレイン領域を露出させるソースコンタクトホール及びドレインコンタクトホールを形成し、前記画素電極の前記透明導電層を露出させる透過ホールを形成する工程と、
前記第2絶縁膜上にデータライン、ソース電極及びドレイン電極を形成する工程と、
前記第2基板上に、前記画素電極及び前記ドレイン電極と部分的に重なる開口部を有したブラックマトリックスを形成する工程と
を含むことを特徴とする液晶表示装置の製造方法。 - 前記ゲートラインと接続された前記ゲート電極が、前記第1活性層を横切ることを特徴とする請求項23に記載の液晶表示装置の製造方法。
- 前記ストレージラインが前記第2活性層と重なることを特徴とする請求項23に記載の液晶表示装置の製造方法。
- 前記画素電極が、前記ゲートラインと前記ストレージラインとの間に形成されることを特徴とする請求項23に記載の液晶表示装置の製造方法。
- 前記ドレイン電極が前記ドレイン領域と接続され、前記画素電極が前記ストレージラインを横切ることを特徴とする請求項23に記載の液晶表示装置の製造方法。
- 前記データライン、前記ソース電極及びドレイン電極上に配向膜を形成することを特徴とする請求項23に記載の液晶表示装置の製造方法。
- 透過ホールを形成する工程が、前記透過ホールを規定する前記第2絶縁膜をパターニングする工程と、
前記透過ホールを通じて前記画素電極の金属層をエッチングすることによって、前記透明導電層を露出する工程と
を含むことを特徴とする請求項23に記載の液晶表示装置の製造方法。 - 前記画素電極の前記金属層が、前記画素電極の透明導電層を取り囲むことを特徴とする請求項23に記載の液晶表示装置の製造方法。
- 前記ドレイン電極が前記ストレージラインに沿って形成され、前記データラインの両側と隣接することを特徴とする請求項23に記載の液晶表示装置の製造方法。
- 前記ドレイン電極は、前記ストレージラインと隣接した前記画素電極の一部分を取り囲むことを特徴とする請求項23に記載の液晶表示装置の製造方法。
- 前記開口部を横切るブリッジをさらに備えることを特徴とする請求項23に記載の液晶表示装置の製造方法。
- 前記ブリッジは、前記ドレイン電極の段差部を覆うことを特徴とする請求項33に記載の液晶表示装置の製造方法。
- 前記ブリッジは、前記ドレイン電極の前記段差部での光漏れを防止することを特徴とする請求項34に記載の液晶表示装置の製造方法。
- 前記ブラックマトリックスの開口部は、前記画素電極の第1境界の外側部分及び前記画素電極の第2境界の内側部分に形成されることを特徴とする請求項23に記載の液晶表示装置の製造方法。
- 前記第1基板と前記第2基板との間に液晶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23に記載の液晶表示装置の製造方法。
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CN1773354A (zh) | 2006-05-17 |
US20060102905A1 (en) | 2006-05-18 |
US7256060B2 (en) | 2007-08-14 |
KR20060045258A (ko) | 2006-05-17 |
US7619286B2 (en) | 2009-11-17 |
JP2006139253A (ja) | 2006-06-01 |
US20080018821A1 (en) | 2008-01-24 |
KR101078360B1 (ko) | 2011-10-31 |
CN100399173C (zh) | 2008-07-02 |
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