JP2020095267A - 薄膜トランジスタアレイ基板及びこれを含む電子装置 - Google Patents
薄膜トランジスタアレイ基板及びこれを含む電子装置 Download PDFInfo
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- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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Abstract
Description
本発明の実施形態に従う電子装置は、表示装置、照明装置、発光装置などを含むことができる。以下では、説明の便宜のために、表示装置を中心として説明する。しかしながら、表示装置だけでなく、トランジスタを包含しさえすれば、照明装置、発光装置などの他の多様な電子装置にも同一に適用できる。
T1 第1トランジスタ
T2 第2トランジスタ
T3 第3トランジスタ
Cst ストレージキャパシタ
Claims (25)
- パネルと、
前記パネルを駆動するための駆動回路と
を含み、
前記パネルに配置された第1トランジスタ及び第2トランジスタは、
基板上に配置された前記第1トランジスタの第1電極と、
前記基板上に配置され、前記第1電極の一端と重畳し、かつ前記第2トランジスタの一部を収容するための開口部を有する第1絶縁膜と、
前記第1絶縁膜上に配置され、かつ前記第1電極の一部と重畳した前記第1トランジスタの第2電極と、
前記第2電極と同一層に配置され、前記第2電極と離隔し、前記第1絶縁膜の開口部を挟んで配置された前記第2トランジスタの第3電極及び第4電極と、
前記第1電極、前記第1絶縁膜、及び前記第2電極上に配置された前記第1トランジスタの第1アクティブ層と、
前記第3電極及び前記第4電極上に配置され、前記第1絶縁膜の開口部を横切って配置された前記第2トランジスタの第2アクティブ層と
を含む、電子装置。 - 前記第1アクティブ層、前記第2アクティブ層、及び前記第3電極上に配置された第2絶縁膜と、
前記第2絶縁膜上に配置され、前記第1アクティブ層と重畳した前記第1トランジスタの第1ゲート電極、及び前記第2アクティブ層と重畳した前記第2トランジスタの第2ゲート電極と
をさらに含む、請求項1に記載の電子装置。 - 前記第1アクティブ層は、前記第1絶縁膜の側面に沿って配置された第1チャンネル領域を含み、
前記第1チャンネル領域は、前記基板に対して非平行に配置された、
請求項1に記載の電子装置。 - 前記パネルの内部では多数のデータラインと多数のゲートラインが交差し、
前記第1トランジスタの第1アクティブ層は1つの前記データライン及び1つのゲートラインと重畳する、
請求項1に記載の電子装置。 - 前記第3電極と一体であるキャパシタの第1プレートと、
前記キャパシタの前記第1プレート上に配置された第2プレートと、
前記第2プレート上に配置された第3絶縁膜と、
前記第3絶縁膜上に配置された第3プレートと
をさらに含む、請求項2に記載の電子装置。 - 前記第1プレートと前記第3プレートは前記第2絶縁膜及び前記第3絶縁膜に備えられた第1ホールを介して電気的に連結される、請求項5に記載の電子装置。
- 前記第2プレートは前記第2トランジスタの第2ゲート電極と一体である、請求項5に記載の電子装置。
- 前記第2絶縁膜は前記第1絶縁膜に比べて高い密度を有し、
前記第2絶縁膜は前記第1絶縁膜より厚さ偏差が少ないか、または前記第2絶縁膜は前記第1絶縁膜より均一な厚さを有する、
請求項5に記載の電子装置。 - 前記第1トランジスタの前記第1電極及び前記第2電極のうちの1つは、前記第2トランジスタの前記第2ゲート電極及びストレージキャパシタと電気的に連結される、請求項2に記載の電子装置。
- 前記第2トランジスタにデータ電圧が印加される、請求項1に記載の電子装置。
- 前記第1アクティブ層は第1チャンネル領域を含み、
前記第1チャンネル領域は前記第1絶縁膜と接触した領域である、
請求項1に記載の電子装置。 - 前記第2アクティブ層は導電領域を含み、前記導電領域は第2ゲート電極と重畳せず、
前記第2アクティブ層の前記導電領域は少なくとも1つの傾斜した領域を含む、
請求項1に記載の電子装置。 - 前記少なくとも1つの傾斜した領域は、前記第2トランジスタの前記第3電極または前記第4電極の少なくとも一面に対応する領域を含む、請求項12に記載の電子装置。
- 前記第2ゲート電極は、前記第2トランジスタの前記第3電極及び前記第4電極より前記基板に一層近く配置された、請求項2に記載の電子装置。
- 前記パネルは前記基板上に配置された第3トランジスタをさらに含み、
前記第3トランジスタは、
前記基板上に配置された第5電極と、
前記第5電極の一端と前記基板の上面の一部を露出する前記第1絶縁膜と、
前記第1絶縁膜上に配置された第6電極と、
前記第6電極、前記第1絶縁膜、及び前記第5電極上に配置され、前記第1絶縁膜と重畳した領域で第3チャンネル領域を備える前記第3トランジスタの第3アクティブ層と、
前記第3アクティブ層上に配置された第2絶縁膜と、
前記第2絶縁膜上に配置され、前記第3アクティブ層と重畳した第3ゲート電極と
を含む、請求項1に記載の電子装置。 - 前記第3トランジスタの前記第5電極と前記第6電極のうちの1つは前記第2トランジスタの前記第3電極または前記第4電極と電気的に連結された、請求項15に記載の電子装置。
- 前記パネルの内部では多数のデータラインと平行な多数の基準電圧配線が配置され、
前記第3アクティブ層は1つの前記基準電圧配線及び1つのゲートラインと重畳する、
請求項15に記載の電子装置。 - 前記第3トランジスタの前記第5電極は、前記第3アクティブ層と重畳した前記基準電圧配線と一体である、請求項17に記載の電子装置。
- 前記第3アクティブ層が重畳した前記ゲートラインは、第1アクティブ層が重畳したゲートラインと対応する、請求項17に記載の電子装置。
- 前記第3アクティブ層が重畳した前記ゲートラインは、第1アクティブ層が重畳したゲートラインと相異する、請求項17に記載の電子装置。
- 前記第1トランジスタ、前記第2トランジスタ及び前記第3トランジスタは、前記パネルのアクティブ領域内の多数のサブピクセルの各々の領域に配置される、請求項15に記載の電子装置。
- 前記第2トランジスタの前記第3電極及び前記第4電極上に第3絶縁膜が配置され、
第3絶縁膜上にピクセル電極が位置し、
前記ピクセル電極は前記第2及び第3絶縁膜に備えられた第2ホールを介して前記第3または前記第4電極と電気的に連結される、
請求項21に記載の電子装置。 - 前記第1トランジスタ、前記第2トランジスタ及び前記第3トランジスタのうちの少なくとも1つは、前記パネルのアクティブ領域の外郭領域であるノン−アクティブ領域に配置されたゲート駆動回路に含まれる、請求項15に記載の電子装置。
- 基板と、
前記基板上に配置された第1トランジスタの第1電極と、
前記基板上に配置され、前記第1電極の一端と重畳し、かつ少なくとも1つの開口部を備える第1絶縁膜と、
前記第1絶縁膜上に配置され、かつ前記第1電極の一部と重畳した前記第1トランジスタの第2電極と、
前記第2電極と同一層に配置され、前記第2電極と離隔し、前記第1絶縁膜の開口部を挟んで配置された第2トランジスタの第3電極及び第4電極と、
前記第1電極、前記第1絶縁膜、及び前記第2電極上に配置された前記第1トランジスタの第1アクティブ層と、
前記第3電極及び前記第4電極上に配置され、前記第1絶縁膜の開口部に沿って配置された前記第2トランジスタの第2アクティブ層と
を含む、薄膜トランジスタアレイ基板。 - 前記第1アクティブ層、前記第2アクティブ層、前記第3電極、及び前記第4電極上に配置された第2絶縁膜と、
前記第2絶縁膜上に配置され、前記第1アクティブ層と重畳した前記第1トランジスタの第1ゲート電極及び前記第2アクティブ層と重畳した前記第2トランジスタの第2ゲート電極と
をさらに含む、請求項24に記載の薄膜トランジスタアレイ基板。
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