JP2013003200A - 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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Abstract
【解決手段】スイッチング素子と、前記スイッチング素子の上に配置され前記スイッチング素子まで貫通した第1コンタクトホールを有する有機絶縁膜と、前記有機絶縁膜の上に形成され前記第1コンタクトホールを介して前記スイッチング素子に電気的に接続された島状の中継電極と、前記有機絶縁膜の上に形成され前記中継電極から離間した共通電極と、前記中継電極及び前記共通電極の上に配置され前記第1コンタクトホールの直上の位置とは異なる位置で前記中継電極まで貫通した第2コンタクトホールを有する層間絶縁膜と、前記層間絶縁膜の上に形成され前記第2コンタクトホールを介して前記中継電極に電気的に接続され前記共通電極と向かい合うスリットを有する画素電極と、を備えた第1基板を備えた液晶表示装置。
【選択図】 図3
Description
絶縁基板と、前記絶縁基板の上に形成されたスイッチング素子と、前記絶縁基板及び前記スイッチング素子の上に配置され前記スイッチング素子まで貫通した第1コンタクトホールを有する有機絶縁膜と、前記有機絶縁膜の上に形成され前記第1コンタクトホールを介して前記スイッチング素子に電気的に接続された島状の中継電極と、前記有機絶縁膜の上に形成され前記中継電極から離間した共通電極と、前記中継電極及び前記共通電極の上に配置され前記第1コンタクトホールの直上の位置とは異なる位置で前記中継電極まで貫通した第2コンタクトホールを有する層間絶縁膜と、前記層間絶縁膜の上に形成され前記第2コンタクトホールを介して前記中継電極に電気的に接続され前記共通電極と向かい合うスリットを有する画素電極と、を備えた第1基板と、前記第1基板に対向配置された第2基板と、前記第1基板と前記第2基板との間に保持された液晶分子を含む液晶層と、を備えたことを特徴とする液晶表示装置が提供される。
絶縁基板と、前記絶縁基板の上に形成されたスイッチング素子と、前記絶縁基板及び前記スイッチング素子の上に配置され第1上面及び前記第1上面から前記スイッチング素子まで貫通した第1コンタクトホールを有する有機絶縁膜と、前記有機絶縁膜の前記第1上面及び前記第1コンタクトホールに形成され前記スイッチング素子に電気的に接続された島状の中継電極と、前記有機絶縁膜の前記第1上面に形成され前記中継電極から離間した共通電極と、前記中継電極及び前記共通電極の上に配置され第2上面及び前記第2上面から前記有機絶縁膜の前記第1上面に形成された前記中継電極まで貫通した第2コンタクトホールを有する層間絶縁膜と、前記層間絶縁膜の前記第2上面に形成されるとともに前記第2コンタクトホールで前記中継電極に積層され前記共通電極と向かい合うスリットを有する画素電極と、を備えた第1基板と、前記第1基板に対向配置された第2基板と、前記第1基板と前記第2基板との間に保持された液晶分子を含む液晶層と、を備えたことを特徴とする液晶表示装置が提供される。
画素電極及び共通電極を備えた第1基板と第2基板との間に液晶層を保持した液晶表示装置の製造方法であって、絶縁基板の上にスイッチング素子を形成し、前記スイッチング素子を有機絶縁膜で覆った後に、前記有機絶縁膜に前記スイッチング素子まで貫通した第1コンタクトホールを形成し、前記有機絶縁膜の上に第1導電材料を成膜し、前記第1導電材料をパターニングして、前記第1コンタクトホールを介して前記スイッチング素子に電気的に接続した島状の中継電極、及び、前記中継電極から離間した共通電極を形成し、前記中継電極及び前記共通電極を層間絶縁膜で覆った後に、前記層間絶縁膜のうち、前記第1コンタクトホールの直上の位置とは異なる位置に前記中継電極まで貫通した第2コンタクトホールを形成し、前記層間絶縁膜の上に第2導電材料を成膜し、前記第2導電材料をパターニングして、前記第2コンタクトホールを介して前記中継電極に電気的に接続し前記共通電極と向かい合うスリットを有する画素電極を形成する、ことを特徴とする液晶表示装置の製造方法が提供される。
ACT…アクティブエリア PX…画素
SW…スイッチング素子
RE…中継電極 PE…画素電極 CE…共通電極
LQ…液晶層
CH1…第1コンタクトホール CH2…第2コンタクトホール
23…第2層間絶縁膜(有機絶縁膜)
24…第3層間絶縁膜
Claims (11)
- 絶縁基板と、前記絶縁基板の上に形成されたスイッチング素子と、前記絶縁基板及び前記スイッチング素子の上に配置され前記スイッチング素子まで貫通した第1コンタクトホールを有する有機絶縁膜と、前記有機絶縁膜の上に形成され前記第1コンタクトホールを介して前記スイッチング素子に電気的に接続された島状の中継電極と、前記有機絶縁膜の上に形成され前記中継電極から離間した共通電極と、前記中継電極及び前記共通電極の上に配置され前記第1コンタクトホールの直上の位置とは異なる位置で前記中継電極まで貫通した第2コンタクトホールを有する層間絶縁膜と、前記層間絶縁膜の上に形成され前記第2コンタクトホールを介して前記中継電極に電気的に接続され前記共通電極と向かい合うスリットを有する画素電極と、を備えた第1基板と、
前記第1基板に対向配置された第2基板と、
前記第1基板と前記第2基板との間に保持された液晶分子を含む液晶層と、
を備えたことを特徴とする液晶表示装置。 - 絶縁基板と、前記絶縁基板の上に形成されたスイッチング素子と、前記絶縁基板及び前記スイッチング素子の上に配置され第1上面及び前記第1上面から前記スイッチング素子まで貫通した第1コンタクトホールを有する有機絶縁膜と、前記有機絶縁膜の前記第1上面及び前記第1コンタクトホールに形成され前記スイッチング素子に電気的に接続された島状の中継電極と、前記有機絶縁膜の前記第1上面に形成され前記中継電極から離間した共通電極と、前記中継電極及び前記共通電極の上に配置され第2上面及び前記第2上面から前記有機絶縁膜の前記第1上面に形成された前記中継電極まで貫通した第2コンタクトホールを有する層間絶縁膜と、前記層間絶縁膜の前記第2上面に形成されるとともに前記第2コンタクトホールで前記中継電極に積層され前記共通電極と向かい合うスリットを有する画素電極と、を備えた第1基板と、
前記第1基板に対向配置された第2基板と、
前記第1基板と前記第2基板との間に保持された液晶分子を含む液晶層と、
を備えたことを特徴とする液晶表示装置。 - 前記中継電極及び前記共通電極は、透明な導電材料によって形成されたことを特徴とする請求項1または2に記載の液晶表示装置。
- 前記有機絶縁膜は、透明な有機材料によって形成されたことを特徴とする請求項1乃至3のいずれか1項に記載の液晶表示装置。
- 前記層間絶縁膜は、シリコン(Si)を含む無機材料によって形成されたことを特徴とする請求項1乃至4のいずれか1項に記載の液晶表示装置。
- 前記スイッチング素子は、ポリシリコン半導体層を備えたことを特徴とする請求項1乃至5のいずれか1項に記載の液晶表示装置。
- 絶縁基板と、前記絶縁基板の上に形成された有機絶縁膜と、前記有機絶縁膜の上に形成された第1電極と、前記第1電極の上に配置され前記第1電極まで貫通したコンタクトホールを有する無機絶縁膜と、前記無機絶縁膜の上に形成され前記コンタクトホールを介して前記第1電極に電気的に接続された第2電極と、を備えた第1基板であって、
前記第1電極及び第2電極の膜構造は、前記無機絶縁膜より粗い膜であることを特徴とする液晶表示装置。 - 画素電極及び共通電極を備えた第1基板と第2基板との間に液晶層を保持した液晶表示装置の製造方法であって、
絶縁基板の上にスイッチング素子を形成し、
前記スイッチング素子を有機絶縁膜で覆った後に、前記有機絶縁膜に前記スイッチング素子まで貫通した第1コンタクトホールを形成し、
前記有機絶縁膜の上に第1導電材料を成膜し、
前記第1導電材料をパターニングして、前記第1コンタクトホールを介して前記スイッチング素子に電気的に接続した島状の中継電極、及び、前記中継電極から離間した共通電極を形成し、
前記中継電極及び前記共通電極を層間絶縁膜で覆った後に、前記層間絶縁膜のうち、前記第1コンタクトホールの直上の位置とは異なる位置に前記中継電極まで貫通した第2コンタクトホールを形成し、
前記層間絶縁膜の上に第2導電材料を成膜し、
前記第2導電材料をパターニングして、前記第2コンタクトホールを介して前記中継電極に電気的に接続し前記共通電極と向かい合うスリットを有する画素電極を形成する、
ことを特徴とする液晶表示装置の製造方法。 - 前記第1導電材料及び前記第2導電材料は、透明であることを特徴とする請求項8に記載の液晶表示装置の製造方法。
- 前記有機絶縁膜は、透明な有機材料によって形成することを特徴とする請求項8または9に記載の液晶表示装置の製造方法。
- 前記層間絶縁膜は、シリコン(Si)を含む無機材料によって形成することを特徴とする請求項8乃至10のいずれか1項に記載の液晶表示装置の製造方法。
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