JP5567809B2 - 表示装置 - Google Patents
表示装置 Download PDFInfo
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- JP5567809B2 JP5567809B2 JP2009215555A JP2009215555A JP5567809B2 JP 5567809 B2 JP5567809 B2 JP 5567809B2 JP 2009215555 A JP2009215555 A JP 2009215555A JP 2009215555 A JP2009215555 A JP 2009215555A JP 5567809 B2 JP5567809 B2 JP 5567809B2
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- layer
- thin film
- film transistor
- substrate
- insulating layer
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Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- 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
- G02F1/01—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 for the control of the intensity, phase, polarisation or colour
- G02F1/13—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 for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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Description
ここでは、第1の基板と第2の基板の間に液晶層を封入する液晶表示装置において、第2の基板に設けられた対向電極と電気的に接続するための共通接続部(パッド部)を第1の基板上に形成する例を示す。なお、第1の基板にはスイッチング素子として薄膜トランジスタが形成されており、共通接続部の作製工程を画素部のスイッチング素子の作製工程と共通化させることで工程を複雑にすることなく形成する。
ここでは、共通電位線として、ゲート配線と同じ材料及び同じ工程で形成される配線を用いて共通接続部(パッド部)を作製する例を図2(A)及び図2(B)に示す。
ここでは、共通接続部(パッド部)にゲート配線と同じ材料及び同じ工程で形成される電極を設け、その上に設ける共通電位線として、ソース電極層と同じ材料及び同じ工程で形成される配線を用いて共通接続部を作製する例を図3(A)及び図3(B)に示す。
ここでは、実施の形態1において、ソース電極層又はドレイン電極層とソース領域又はドレイン領域を同じマスクでエッチング加工して形成された表示装置の例を図29(A)(B)に示す。
ここでは、実施の形態3において、ソース電極層又はドレイン電極層とソース領域及びドレイン領域を同じマスクでエッチング加工して形成された表示装置の例を図30(A)(B)に示す。
本実施の形態では、本発明の一形態の薄膜トランジスタを含む表示装置の作製工程について、図4乃至図11を用いて説明する。本発明の表示装置に含まれる薄膜トランジスタは、チャネル保護層を有する逆スタガ型の薄膜トランジスタである。
ここでは、実施の形態3において、ソース電極層又はドレイン電極層と半導体層とが接する構成の薄膜トランジスタを有する表示装置の例を図31(A)(B)に示す。
本実施の形態では、本発明の半導体装置の一例である表示装置において、同一基板上に少なくとも駆動回路の一部と、画素部に配置する薄膜トランジスタを作製する例について以下に説明する。
本発明の一形態の薄膜トランジスタを作製し、該薄膜トランジスタを画素部、さらには駆動回路に用いて表示機能を有する半導体装置(表示装置ともいう)を作製することができる。また、本発明の一形態の薄膜トランジスタを駆動回路の一部または全体を、画素部と同じ基板上に一体形成し、システムオンパネルを形成することができる。
本実施の形態では、本発明の一形態の半導体装置として電子ペーパーの例を示す。
本実施の形態では、本発明の一形態の半導体装置として発光表示装置の例を示す。表示装置の有する表示素子としては、ここではエレクトロルミネッセンスを利用する発光素子を用いて示す。エレクトロルミネッセンスを利用する発光素子は、発光材料が有機化合物であるか、無機化合物であるかによって区別され、一般的に、前者は有機EL素子、後者は無機EL素子と呼ばれている。
本発明の一形態の半導体装置は、電子ペーパーとして適用することができる。電子ペーパーは、情報を表示するものであればあらゆる分野の電子機器に用いることが可能である。例えば、電子ペーパーを用いて、電子書籍(電子ブック)、ポスター、電車などの乗り物の車内広告、クレジットカード等の各種カードにおける表示等に適用することができる。電子機器の一例を図24、図25に示す。
本発明に係る半導体装置は、さまざまな電子機器(遊技機も含む)に適用することができる。電子機器としては、例えば、テレビジョン装置(テレビ、またはテレビジョン受信機ともいう)、コンピュータ用などのモニタ、デジタルカメラ、デジタルビデオカメラ、デジタルフォトフレーム、携帯電話機(携帯電話、携帯電話装置ともいう)、携帯型ゲーム機、携帯情報端末、音響再生装置、パチンコ機などの大型ゲーム機などが挙げられる。
Claims (4)
- 画素部及び共通接続部を有する第1の基板と、
第1の導電層を有する第2の基板と、
前記第1の基板及び前記第2の基板との間に導電性粒子と、を有し、
前記画素部は、
前記第1の基板上のゲート電極と、
前記ゲート電極上の第1の絶縁層と、
前記第1の絶縁層上の第1の酸化物半導体層と、
前記第1の酸化物半導体層の一部の上の第2の絶縁層と、
前記第1の酸化物半導体層上及び前記第2の絶縁層上の第2の酸化物半導体層及び第3の酸化物半導体層と、
前記第1の絶縁層上及び前記第2の酸化物半導体層上の第2の導電層と、
前記第1の絶縁層上及び前記第3の酸化物半導体層上の第3の導電層と、
前記第2の導電層上、前記第3の導電層上、及び前記第2の絶縁層上の第3の絶縁層と、
前記第3の絶縁層に形成された第1のコンタクトホールを介して前記第3の導電層と電気的に接続された、前記第3の絶縁層上の第4の導電層と、を有し、
前記共通接続部は、
前記第1の基板上の第5の導電層と、
前記第5の導電層上の第4の絶縁層と、
前記第4の絶縁層上の第6の導電層と、
前記第6の導電層上の第5の絶縁層と、
前記第5の絶縁層に形成された第2のコンタクトホールを介して前記第6の導電層と電気的に接続された、前記第5の絶縁層上の第7の導電層と、を有し、
前記第7の導電層は、前記導電性粒子を介して前記第1の導電層と電気的に接続され、
前記第5の導電層は、フローティングであり、
前記ゲート電極及び前記第5の導電層は同じ材料で形成され、
前記第4の導電層及び前記第7の導電層は同じ材料で形成され、
前記第1の絶縁層及び前記第4の絶縁層は同じ材料で形成され、
前記第3の絶縁層及び前記第5の絶縁層は同じ材料で形成されていることを特徴とする表示装置。 - 請求項1において、
前記第1の酸化物半導体層、前記第2の酸化物半導体層、及び前記第3の酸化物半導体層は、インジウム、ガリウム、及び亜鉛を有することを特徴とする表示装置。 - 画素部及び共通接続部を有する第1の基板と、
第1の導電層を有する第2の基板と、
前記第1の基板と前記第2の基板との間に導電性粒子と、を有し、
前記画素部は、
前記第1の基板上のゲート電極と、
前記ゲート電極上の第1の絶縁層と、
前記第1の絶縁層上の酸化物半導体層と、
前記酸化物半導体層の一部の上の第2の絶縁層と、
前記酸化物半導体層上及び前記第2の絶縁層上の第2の導電層及び第3の導電層と、
前記第2の導電層上、前記第3の導電層上、及び前記第2の絶縁層上の第3の絶縁層と、
前記第3の絶縁層に形成された第1のコンタクトホールを介して前記第3の導電層と電気的に接続された、前記第3の絶縁層上の第4の導電層と、を有し、
前記共通接続部は、
前記第1の基板上の第5の導電層と、
前記第5の導電層上の第4の絶縁層と、
前記第4の絶縁層上の第6の導電層と、
前記第6の導電層上の第5の絶縁層と、
前記第5の絶縁層に形成された第2のコンタクトホールを介して前記第6の導電層と電気的に接続された、前記第5の絶縁層上の第7の導電層と、を有し、
前記第7の導電層は、前記導電性粒子を介して前記第1の導電層と電気的に接続され、
前記第5の導電層は、フローティングであり、
前記ゲート電極及び前記第5の導電層は同じ材料で形成され、
前記第4の導電層及び前記第7の導電層は同じ材料で形成され、
前記第1の絶縁層及び前記第4の絶縁層は同じ材料で形成され、
前記第3の絶縁層及び前記第5の絶縁層は同じ材料で形成されていることを特徴とする表示装置。 - 請求項3において、
前記酸化物半導体層は、インジウム、ガリウム、及び亜鉛を有することを特徴とする表示装置。
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JP2013213536A Active JP5661162B2 (ja) | 2008-09-19 | 2013-10-11 | 半導体装置 |
JP2013233967A Active JP5496405B2 (ja) | 2008-09-19 | 2013-11-12 | 発光装置 |
JP2014243883A Active JP5927278B2 (ja) | 2008-09-19 | 2014-12-02 | 表示装置 |
JP2016086084A Active JP6333883B2 (ja) | 2008-09-19 | 2016-04-22 | 表示装置 |
JP2018083751A Withdrawn JP2018174326A (ja) | 2008-09-19 | 2018-04-25 | 表示装置 |
JP2020050799A Withdrawn JP2020115552A (ja) | 2008-09-19 | 2020-03-23 | 半導体装置 |
JP2022005855A Active JP7362798B2 (ja) | 2008-09-19 | 2022-01-18 | 表示装置 |
JP2023172562A Pending JP2024016025A (ja) | 2008-09-19 | 2023-10-04 | 表示装置 |
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