JP2018207106A - 薄膜トランジスタ、それを含むゲート駆動部、およびそれを含む表示装置 - Google Patents
薄膜トランジスタ、それを含むゲート駆動部、およびそれを含む表示装置 Download PDFInfo
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- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
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- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0243—Details of the generation of driving signals
- G09G2310/0245—Clearing or presetting the whole screen independently of waveforms, e.g. on power-on
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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]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
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Abstract
Description
また、もし、第2の酸化物半導体層132をIGZOで形成する場合、第2の酸化物半導体層132のIGZの組成比は、以下の条件を満足する必要がある。第2の酸化物半導体層132において、インジウム(In)対比ガリウム(Ga)の含有量は2≦Ga/In≦4であり、インジウム(In)対比亜鉛(Zn)の含有量は2≦Zn/In≦8であり得る。ここで、各元素の含有量は、原子パーセント(atomic percent)を指す。
110:ゲート電極
120:ゲート絶縁膜
130:酸化物半導体層
131:第1酸化物半導体層
132:第2酸化物半導体層
140:ソース電極
150:ドレイン電極
160:保護膜
170:層間絶縁膜
CT1:第1コンタクトホール
CT2:第2コンタクトホール
1000:表示装置
1100:表示パネル
1200:ゲート駆動部
1300:ソースドライブIC
1400:軟性フィルム
1500:回路基板
1600:タイミング制御部
Claims (21)
- インジウム(In)、ガリウム(Ga)、亜鉛(Zn)、スズ(Sn)および酸素(O)を含む第1の酸化物半導体層と、前記インジウム(In)、ガリウム(Ga)、亜鉛(Zn)、および酸素(O)を含む第2酸化物半導体層を備え、
前記第2酸化物半導体層のインジウム対比ガリウムの含有量(Ga/In)は、前記第1酸化物半導体層のインジウム対比ガリウムの含有量(Ga/In)より高く、
前記第2酸化物半導体層のインジウム対比亜鉛の含有量(Zn/In)は、前記第1酸化物半導体層のインジウム対比亜鉛の含有量(Zn/In)よりも高い、
ことを特徴とする、薄膜トランジスタ。 - 前記第1酸化物半導体層の一側面の傾斜角度が鋭角であり、
前記第2酸化物半導体層の一側面の傾斜角度は90度または鋭角である、
ことを特徴とする、請求項1に記載の薄膜トランジスタ。 - 前記第2酸化物半導体層のインジウム対比亜鉛の含有量(Zn/In)が、5よりも小さいことを特徴とする、請求項1に記載の薄膜トランジスタ。
- 前記第2酸化物半導体層の厚さが、前記第1酸化物半導体層の厚さの1/3よりも厚く、
前記第1酸化物半導体層の厚さの5/3よりも薄い、
ことを特徴とする、請求項1に記載の薄膜トランジスタ。 - 前記第2酸化物半導体層よりも前記第1酸化物半導体層に近接して配置されるゲート電極をさらに具備する、請求項1に記載の薄膜トランジスタ。
- 前記第1酸化物半導体層が、ゲート絶縁膜を間に置いて前記ゲート電極と重畳することを特徴とする、請求項5に記載の薄膜トランジスタ。
- 前記ゲート電極が、前記第1酸化物半導体層の下に配置され、
前記第2酸化物半導体層は、前記第1酸化物半導体層上に配置される、
ことを特徴とする、請求項5に記載の薄膜トランジスタ。 - 前記第1酸化物半導体層の一側と前記第2酸化物半導体層の一側に接触したソース電極と、
前記第1酸化物半導体層の他側と前記第2酸化物半導体層の他側に接触したドレイン電極と、
をさらに具備する、請求項7に記載の薄膜トランジスタ。 - 前記ゲート電極は、前記第1酸化物半導体層上に配置され、
前記第2酸化物半導体層は、前記第1酸化物半導体層の下に配置される、
ことを特徴とする、請求項5に記載の薄膜トランジスタ。 - 前記半導体層を覆う層間絶縁膜を貫通する第1コンタクトホールを介して前記第1酸化物半導体層の一側に接触したソース電極と、
前記層間絶縁膜を貫通する第2コンタクトホールを介して前記第1酸化物半導体層の他側に接触したドレイン電極と、
をさらに具備する、請求項9に記載の薄膜トランジスタ。 - 前記ソース電極が、前記第1酸化物半導体層を貫通する前記第1コンタクトホールを介して前記第2酸化物半導体層の一側に接触し、
前記ドレイン電極は、前記第1酸化物半導体層を貫通する前記第2コンタクトホールを介して前記第2酸化物半導体層の他側に接触する、
ことを特徴とする、請求項10に記載の薄膜トランジスタ。 - 前記第2酸化物半導体層は、スズ(Sn)をさらに含むことを特徴とする、請求項1に記載の薄膜トランジスタ。
- 前記第2酸化物半導体層のスズ対比インジウムの含有量(In/Sn)が、前記第1酸化物半導体層のスズ対比インジウムの含有量(In/Sn)よりも高いか、または同じであることを特徴とする、請求項12に記載の薄膜トランジスタ。
- 前記第2酸化物半導体層のガリウム(Ga)の含有量比が、前記第1酸化物半導体層のガリウム(Ga)の含有量比よりも高く、
前記第2酸化物半導体層の亜鉛(Zn)の含有量比は、前記第1酸化物半導体層の亜鉛(Zn)の含有量比よりも高い、
ことを特徴とする、請求項1に記載の薄膜トランジスタ。 - 前記第2酸化物半導体層のインジウム(In)の含有量比は、前記第1酸化物半導体層のインジウム(In)の含有量比よりも低く、
前記第2酸化物半導体層のスズ(Sn)の含有量比は、第1酸化物半導体層131のスズ(Sn)の含有量比よりも低い、
ことを特徴とする、請求項12に記載の薄膜トランジスタ。 - 前記第1酸化物半導体層のスズ(Sn)対比インジウム(In)の含有量は2.5≦In/Sn≦5を満たし、
スズ(Sn)対比ガリウム(Ga)の含有量は1≦Ga/Sn≦2を満たし、
スズ(Sn)対比亜鉛(Zn)の含有量は2.5≦Zn/Sn≦5を満たす、
ことを特徴とする、請求項1に記載の薄膜トランジスタ。 - 前記第2酸化物半導体層のインジウム(In)対比ガリウム(Ga)の含有量は2≦Ga/In≦4を満たし、
インジウム(In)対比亜鉛(Zn)の含有量は2≦Zn/In≦8を満たす、
ことを特徴とする、請求項12に記載の薄膜トランジスタ。 - 前記第2酸化物半導体層のインジウム(In)対比ガリウム(Ga)の含有量は2≦Ga/In≦4を満たし、
インジウム(In)対比亜鉛(Zn)の含有量は2≦Zn/In≦8を満たし、
インジウム(In)対比スズ(Sn)の含有量は0.1≦Sn/In≦0.5を満たす、
ことを特徴とする、請求項12に記載の薄膜トランジスタ。 - ゲート信号を出力する複数のステージを備え、
前記複数のステージのそれぞれは、請求項1乃至18のいずれか一項に記載の薄膜トランジスタを含む、
ことを特徴とする、ゲート駆動部。 - データライン、ゲートライン、前記データラインと前記ゲートラインの交差領域に配置された画素を含む表示パネルを備え、
画素の各々は、請求項1乃至18のいずれか一項に記載の薄膜トランジスタを含む、
ことを特徴とする、表示装置。 - 前記表示パネルが、前記ゲートラインにゲート信号を出力するゲート駆動部をさらに含み、
前記ゲート駆動部は、請求項1乃至18のいずれか一項に記載の薄膜トランジスタを含む、
ことを特徴とする、請求項20に記載の表示装置。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2017-0068037 | 2017-05-31 | ||
| KR1020170068037A KR102344003B1 (ko) | 2017-05-31 | 2017-05-31 | 이중층 산화물 반도체 물질을 구비한 박막 트랜지스터 기판 |
| KR10-2017-0169420 | 2017-12-11 | ||
| KR1020170169420A KR102449467B1 (ko) | 2017-12-11 | 2017-12-11 | 박막 트랜지스터, 그의 제조방법, 및 그를 포함한 표시장치 |
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| JP2018207106A true JP2018207106A (ja) | 2018-12-27 |
| JP6636570B2 JP6636570B2 (ja) | 2020-01-29 |
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| JP (1) | JP6636570B2 (ja) |
| CN (2) | CN108987482B (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020166269A1 (ja) * | 2019-02-13 | 2020-08-20 | 株式会社神戸製鋼所 | 酸化物半導体薄膜、薄膜トランジスタおよびスパッタリングターゲット |
| JP2020136302A (ja) * | 2019-02-13 | 2020-08-31 | 株式会社神戸製鋼所 | 酸化物半導体薄膜、薄膜トランジスタおよびスパッタリングターゲット |
| KR20210107123A (ko) * | 2019-02-13 | 2021-08-31 | 가부시키가이샤 고베 세이코쇼 | 산화물 반도체 박막, 박막 트랜지스터 및 스퍼터링 타겟 |
| KR102590698B1 (ko) * | 2019-02-13 | 2023-10-17 | 가부시키가이샤 고베 세이코쇼 | 산화물 반도체 박막, 박막 트랜지스터 및 스퍼터링 타겟 |
Also Published As
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| CN108987482B (zh) | 2022-05-17 |
| US20250040192A1 (en) | 2025-01-30 |
| TW201904073A (zh) | 2019-01-16 |
| US10930790B2 (en) | 2021-02-23 |
| DE102018010494B4 (de) | 2025-07-24 |
| JP6636570B2 (ja) | 2020-01-29 |
| US12249655B2 (en) | 2025-03-11 |
| CN108987482A (zh) | 2018-12-11 |
| TWI667796B (zh) | 2019-08-01 |
| US20220344512A1 (en) | 2022-10-27 |
| DE102018112532B4 (de) | 2022-09-22 |
| CN114975635B (zh) | 2026-01-06 |
| US20210143279A1 (en) | 2021-05-13 |
| DE102018112532A1 (de) | 2018-12-06 |
| US20180350995A1 (en) | 2018-12-06 |
| CN114975635A (zh) | 2022-08-30 |
| US11791418B2 (en) | 2023-10-17 |
| US11417774B2 (en) | 2022-08-16 |
| US20230420572A1 (en) | 2023-12-28 |
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