JP4457048B2 - 半透過型液晶表示装置 - Google Patents
半透過型液晶表示装置 Download PDFInfo
- Publication number
- JP4457048B2 JP4457048B2 JP2005182935A JP2005182935A JP4457048B2 JP 4457048 B2 JP4457048 B2 JP 4457048B2 JP 2005182935 A JP2005182935 A JP 2005182935A JP 2005182935 A JP2005182935 A JP 2005182935A JP 4457048 B2 JP4457048 B2 JP 4457048B2
- Authority
- JP
- Japan
- Prior art keywords
- signal line
- liquid crystal
- pixel electrode
- crystal display
- display device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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-
- 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
-
- 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
-
- 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
-
- 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
- G02F1/133555—Transflectors
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Liquid Crystal (AREA)
- Optical Filters (AREA)
Description
この半透過型液晶表示装置は、一つの画素領域内に画素電極を備えた透過部と画素電極及び反射電極の両方を備えた反射部を有しており、暗い場所においてはバックライトを点灯して画素領域の透過部を利用して画像を表示し、明るい場所においてはバックライトを点灯することなく反射部において外光を利用して画像を表示しているため、常時バックライトを点灯する必要がなくなるので、消費電力を大幅に低減させることができるという利点を有している。
但し、
Cst:補助電極容量
Csd:ソースドレイン間容量
C1c:液晶容量
したがって、この式(1)から、ソースドレイン間の容量Csdが小さくなれば、差分ΔVが小さくなることがわかる。
前記反射部及び透過部に設ける画素電極を、前記走査線及び信号線と層間膜を介して平面視において重なるように形成し、
前記透過部における信号線の幅を前記反射部に対応する信号線の幅よりも太くし、
前記透過部における画素電極と信号線の重なり幅を前記反射部における画素電極と信号線の重なり幅よりも太くしたことを特徴とする。
11 ガラス基板
12 走査線
13 信号線
14 無機絶縁膜
15 反射部
16 透過部
17 層間膜
18 反射電極
19 画素電極
20 コンタクトホール
21 補助容量線
22 半導体層
23 保護絶縁膜
Claims (4)
- マトリクス状に配置された信号線及び走査線により区画されるそれぞれの位置に反射部と透過部とが形成された第一基板と、カラーフィルタ及び共通電極を形成した第二基板と、前記両基板間に配置された液晶層とを有する半透過型液晶表示装置において、
前記反射部及び透過部に設ける画素電極と前記反射部に設ける反射電極を、前記走査線及び信号線と層間膜を介して平面視において重なるように形成し、
前記透過部における信号線の幅を前記反射部に対応する信号線の幅よりも太くし、
前記透過部における画素電極と信号線の重なり幅を前記反射部における画素電極及び反射電極と信号線の重なり幅よりも太くしたことを特徴とする半透過型液晶表示装置。 - 前記層間膜は前記反射部、透過部、信号線及び走査線上に一体に設けられていることを特徴とする請求項1に記載の半透過型液晶表示装置。
- 前記透過部における画素電極と信号線の重なり幅は、前記反射部における画素電極及び反射電極と信号線の重なり幅よりも1.0μm以上大きくしたことを特徴とする請求項1に記載の半透過型液晶表示装置。
- 前記透過部における画素電極と信号線の重なり幅は、1.2μm以上となるように選択されていることを特徴とする請求項1に記載の半透過型液晶表示装置。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005182935A JP4457048B2 (ja) | 2005-06-23 | 2005-06-23 | 半透過型液晶表示装置 |
DE602006005988T DE602006005988D1 (de) | 2005-06-23 | 2006-05-22 | Semitransmissive Flüssigkristallanzeigevorrichtung |
EP06010497A EP1736818B1 (en) | 2005-06-23 | 2006-05-22 | Semi-transmissive liquid crystal display device |
US11/449,721 US7719638B2 (en) | 2005-06-23 | 2006-06-09 | Semi-transmissive liquid crystal display device with signal lines that are broader in the transmissive portion than in the reflective portion |
TW095121339A TWI341432B (en) | 2005-06-23 | 2006-06-15 | Semi-transmissive liquid crystal display device |
KR1020060055429A KR100779276B1 (ko) | 2005-06-23 | 2006-06-20 | 반투과형 액정 표시 장치 |
CNB2006100866315A CN100401148C (zh) | 2005-06-23 | 2006-06-23 | 半透射型液晶显示器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005182935A JP4457048B2 (ja) | 2005-06-23 | 2005-06-23 | 半透過型液晶表示装置 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007248584A Division JP4730363B2 (ja) | 2007-09-26 | 2007-09-26 | 半透過型液晶表示装置 |
JP2008230601A Division JP4883061B2 (ja) | 2008-09-09 | 2008-09-09 | 半透過型液晶表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007003752A JP2007003752A (ja) | 2007-01-11 |
JP4457048B2 true JP4457048B2 (ja) | 2010-04-28 |
Family
ID=36829810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005182935A Expired - Fee Related JP4457048B2 (ja) | 2005-06-23 | 2005-06-23 | 半透過型液晶表示装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7719638B2 (ja) |
EP (1) | EP1736818B1 (ja) |
JP (1) | JP4457048B2 (ja) |
KR (1) | KR100779276B1 (ja) |
CN (1) | CN100401148C (ja) |
DE (1) | DE602006005988D1 (ja) |
TW (1) | TWI341432B (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4661506B2 (ja) * | 2005-09-30 | 2011-03-30 | ソニー株式会社 | 半透過型液晶表示パネル |
US20080049176A1 (en) * | 2006-08-25 | 2008-02-28 | Samsung Electronics Co., Ltd. | Thin film transistor-array substrate, transflective liquid crystal display device with the same, and method for manufacturing the same |
US20120194573A1 (en) * | 2009-09-25 | 2012-08-02 | Sharp Kabushiki Kaisha | Liquid crystal display device |
TWI397757B (zh) * | 2009-12-22 | 2013-06-01 | Au Optronics Corp | 聚合物穩定配向液晶顯示面板及液晶顯示面板 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2955277B2 (ja) | 1997-07-28 | 1999-10-04 | シャープ株式会社 | 液晶表示装置 |
JP4167335B2 (ja) * | 1998-01-30 | 2008-10-15 | シャープ株式会社 | 液晶表示装置 |
KR100330363B1 (ko) * | 1999-03-18 | 2002-04-01 | 니시무로 타이죠 | 액티브 매트릭스형 액정표시장치 |
JP3895952B2 (ja) * | 2001-08-06 | 2007-03-22 | 日本電気株式会社 | 半透過型液晶表示装置及びその製造方法 |
JP4051237B2 (ja) * | 2002-07-30 | 2008-02-20 | 株式会社 日立ディスプレイズ | 液晶表示装置 |
TW578123B (en) * | 2002-12-03 | 2004-03-01 | Quanta Display Inc | Pixel having transparent structure and reflective structure |
JP3961945B2 (ja) | 2002-12-27 | 2007-08-22 | 株式会社アドバンスト・ディスプレイ | 液晶表示装置 |
KR100460085B1 (ko) * | 2002-12-27 | 2004-12-03 | 엘지.필립스 엘시디 주식회사 | 콜레스테릭 액정 컬러필터를 포함하는 반사형 액정표시장치 |
JP4004048B2 (ja) * | 2003-04-11 | 2007-11-07 | Tdk株式会社 | 高周波伝送線路 |
JP2005055645A (ja) | 2003-08-04 | 2005-03-03 | Toshiba Matsushita Display Technology Co Ltd | 液晶表示素子 |
JP2005091819A (ja) | 2003-09-18 | 2005-04-07 | Sharp Corp | 液晶表示装置 |
JP4184216B2 (ja) | 2003-09-29 | 2008-11-19 | シャープ株式会社 | 液晶表示装置 |
JP4301927B2 (ja) * | 2003-12-01 | 2009-07-22 | シャープ株式会社 | 液晶表示装置 |
KR100978949B1 (ko) * | 2003-12-05 | 2010-08-31 | 엘지디스플레이 주식회사 | 반투과형 액정표시장치 |
TWI297793B (en) * | 2004-05-21 | 2008-06-11 | Sanyo Electric Co | Liquid crystal display device |
-
2005
- 2005-06-23 JP JP2005182935A patent/JP4457048B2/ja not_active Expired - Fee Related
-
2006
- 2006-05-22 DE DE602006005988T patent/DE602006005988D1/de active Active
- 2006-05-22 EP EP06010497A patent/EP1736818B1/en not_active Expired - Fee Related
- 2006-06-09 US US11/449,721 patent/US7719638B2/en not_active Expired - Fee Related
- 2006-06-15 TW TW095121339A patent/TWI341432B/zh not_active IP Right Cessation
- 2006-06-20 KR KR1020060055429A patent/KR100779276B1/ko active IP Right Grant
- 2006-06-23 CN CNB2006100866315A patent/CN100401148C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2007003752A (ja) | 2007-01-11 |
DE602006005988D1 (de) | 2009-05-14 |
US20060290849A1 (en) | 2006-12-28 |
TW200705068A (en) | 2007-02-01 |
CN100401148C (zh) | 2008-07-09 |
KR20060134817A (ko) | 2006-12-28 |
EP1736818A1 (en) | 2006-12-27 |
EP1736818B1 (en) | 2009-04-01 |
TWI341432B (en) | 2011-05-01 |
CN1885102A (zh) | 2006-12-27 |
US7719638B2 (en) | 2010-05-18 |
KR100779276B1 (ko) | 2007-11-23 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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LAPS | Cancellation because of no payment of annual fees |