JP4892895B2 - 液晶表示装置及び投射型液晶表示装置 - Google Patents
液晶表示装置及び投射型液晶表示装置 Download PDFInfo
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- JP4892895B2 JP4892895B2 JP2005253274A JP2005253274A JP4892895B2 JP 4892895 B2 JP4892895 B2 JP 4892895B2 JP 2005253274 A JP2005253274 A JP 2005253274A JP 2005253274 A JP2005253274 A JP 2005253274A JP 4892895 B2 JP4892895 B2 JP 4892895B2
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- Prior art keywords
- liquid crystal
- display device
- crystal display
- source driver
- matrix substrate
- 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.)
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- 239000004973 liquid crystal related substance Substances 0.000 title claims description 121
- 239000000758 substrate Substances 0.000 claims description 79
- 239000011159 matrix material Substances 0.000 claims description 36
- 238000010438 heat treatment Methods 0.000 claims description 31
- 239000011521 glass Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 230000005684 electric field Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 150000002736 metal compounds Chemical class 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 3
- 229910021342 tungsten silicide Inorganic materials 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- -1 tungsten silicide Chemical class 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3614—Control of polarity reversal in general
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0283—Arrangement of drivers for different directions of scanning
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/04—Display protection
- G09G2330/045—Protection against panel overheating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
102 対向基板
103 液晶層
111 画素電極
112 共通電極
121 TFT
122 ソース線
123 走査線
124 ゲートドライバ
131 ソースドライバIC
132 フレキシブルケーブル
133 アナログスイッチアレイ
134 制御パルス生成部及び電源部
135 静電保護素子
141 配線
142 トランスファー電極
151 遮光層
161 放熱体
162、163 発熱体
164 アライメントマーク
190 表示領域
195 画素マトリクスの頂点
Claims (8)
- 複数のソース線と複数の走査線との交点付近に能動素子を含む画素がマトリクス状に配列された表示領域を有するマトリクス基板と、対向電極を有し前記マトリクス基板に対向する対向基板と、前記マトリクス基板と前記対向基板との間に挟みこまれた液晶層と、前記表示領域の近傍に配設され前記ソース線を駆動するソースドライバICとを備え、フレーム反転駆動で駆動される液晶表示装置において、
前記ソースドライバICに隣接して配設され、発熱又は放熱する熱制御機構を備えており、
前記ソースドライバICは、前記マトリクス基板にチップオングラス(COG)接続されるとともに、前記熱制御機構は、前記ソースドライバICから発生する熱により変化する当該マトリクス基板の温度傾斜を発熱することで制御可能なように、前記マトリクス基板に形成され、且つ、前記ソースドライバICの近傍に配置された発熱体、又は、前記マトリクス基板の温度傾斜を放熱することで制御可能なように、前記対向電極に熱的に結合された状態で前記マトリクス基板に形成され、且つ、前記ソースドライバICから発生する熱を前記対向電極に向けて放熱する放熱体から構成されており、
各フレーム期間では、前記走査線を前記ソースドライバICに近い側の走査線から遠い側の走査線に向かって走査し、前記ソースドライバICが該ソースドライバに最も近い側の走査線に接続された画素から遠い側の走査線に接続された画素に向かって順次に映像信号を書き込むことを特徴とする液晶表示装置。 - 前記発熱体が、前記マトリクス基板内で前記ソースドライバICに対向する発熱体と、前記ソースドライバICに最も近い側の走査線に接続された複数の画素のうち両端の画素の近傍に配設される発熱体とを含む、請求項1に記載の液晶表示装置。
- 前記熱制御機構が、遮光性を有する材料で形成されており、前記ソースドライバICに入射する光を遮光する、請求項1又は2に記載の液晶表示装置。
- 前記マトリクス基板上には、前記ソースドライバICの位置決めに用いるアライメントマークが、前記基板と直交方向に見て前記熱制御機構と重なる位置に形成され、該アライメントマークは、前記熱制御機構の光反射率とは異なる光反射率を有する材料で形成されている、請求項1乃至3の何れか1項に記載の液晶表示装置。
- 前記熱制御機構は、前記マトリクス基板において、前記能動素子を遮光する遮光層と同層に形成される、請求項1乃至4の何れか1項に記載の液晶表示装置。
- 前記熱制御機構及び前記ソースドライバICによって前記マトリクス基板上で形成される温度傾斜に起因する表示領域の輝度傾斜の大きさが、前記映像信号の書込み順序に起因する表示領域の輝度傾斜の大きさと実質的に同等である、請求項1乃至5の何れか1項に記載の液晶表示装置。
- フレーム周波数が120Hz以上である、請求項1乃至6の何れか1項に記載の液晶表示装置。
- 光源と、請求項1乃至7の何れか1項に記載の液晶表示装置と、該液晶表示装置を透過した前記光源からの光をスクリーンに投射する投射手段とを備えたことを特徴とする投射型液晶表示装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005253274A JP4892895B2 (ja) | 2005-09-01 | 2005-09-01 | 液晶表示装置及び投射型液晶表示装置 |
US11/513,857 US20070046615A1 (en) | 2005-09-01 | 2006-08-31 | Liquid crystal panel operating in a frame-inversion driving scheme |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005253274A JP4892895B2 (ja) | 2005-09-01 | 2005-09-01 | 液晶表示装置及び投射型液晶表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007065457A JP2007065457A (ja) | 2007-03-15 |
JP4892895B2 true JP4892895B2 (ja) | 2012-03-07 |
Family
ID=37803406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005253274A Active JP4892895B2 (ja) | 2005-09-01 | 2005-09-01 | 液晶表示装置及び投射型液晶表示装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20070046615A1 (ja) |
JP (1) | JP4892895B2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100940632B1 (ko) * | 2007-12-04 | 2010-02-05 | 주식회사 동부하이텍 | 액정표시장치의 구동장치 및 그 제조방법 |
WO2010041649A1 (ja) * | 2008-10-10 | 2010-04-15 | シャープ株式会社 | 表示装置及びその駆動方法 |
JP2010102030A (ja) * | 2008-10-22 | 2010-05-06 | Canon Inc | 発光装置及びそれを用いた画像表示装置 |
JP5454120B2 (ja) * | 2009-12-16 | 2014-03-26 | カシオ計算機株式会社 | 駆動回路が搭載される基板及びそれを備えた表示装置 |
WO2011087015A1 (ja) * | 2010-01-13 | 2011-07-21 | シャープ株式会社 | 液晶表示装置 |
US9601064B1 (en) * | 2011-11-28 | 2017-03-21 | Elbit Systems Ltd. | Liquid crystal display with full driver redundancy scheme |
KR102317600B1 (ko) * | 2014-07-21 | 2021-10-27 | 삼성디스플레이 주식회사 | 표시 장치 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04113322A (ja) * | 1990-08-31 | 1992-04-14 | Sharp Corp | 表示装置 |
JP3243273B2 (ja) * | 1992-03-11 | 2002-01-07 | 株式会社東芝 | 液晶表示装置 |
JPH05273589A (ja) * | 1992-03-27 | 1993-10-22 | Sony Corp | 液晶表示装置 |
JPH0843852A (ja) * | 1994-07-27 | 1996-02-16 | Fujitsu Ltd | 液晶表示装置 |
JPH1138378A (ja) * | 1997-07-22 | 1999-02-12 | Nikon Corp | 空間光変調素子およびそれを用いた液晶プロジェクタ |
JP2000137211A (ja) * | 1998-11-04 | 2000-05-16 | Matsushita Electric Ind Co Ltd | 液晶表示装置 |
JP2000214478A (ja) * | 1999-01-22 | 2000-08-04 | Matsushita Electric Ind Co Ltd | 液晶パネル |
JP3656455B2 (ja) * | 1999-04-13 | 2005-06-08 | 富士電機デバイステクノロジー株式会社 | ドライバーモジュール構造 |
KR100350651B1 (ko) * | 2000-11-22 | 2002-08-29 | 삼성전자 주식회사 | 멀티 프레임 반전 기능을 갖는 액정 표시 장치와 이의구동 장치 및 방법 |
JP2002311926A (ja) * | 2001-02-07 | 2002-10-25 | Toshiba Corp | 平面表示装置の駆動方法 |
US7495714B2 (en) * | 2003-10-07 | 2009-02-24 | American Panel Corporation | Flat panel display having an isolated EMI layer and integral heater and thermal sensors |
US8194006B2 (en) * | 2004-08-23 | 2012-06-05 | Semiconductor Energy Laboratory Co., Ltd. | Display device, driving method of the same, and electronic device comprising monitoring elements |
-
2005
- 2005-09-01 JP JP2005253274A patent/JP4892895B2/ja active Active
-
2006
- 2006-08-31 US US11/513,857 patent/US20070046615A1/en not_active Abandoned
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JP2007065457A (ja) | 2007-03-15 |
US20070046615A1 (en) | 2007-03-01 |
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