JP4713246B2 - 液晶表示素子 - Google Patents
液晶表示素子 Download PDFInfo
- Publication number
- JP4713246B2 JP4713246B2 JP2005190892A JP2005190892A JP4713246B2 JP 4713246 B2 JP4713246 B2 JP 4713246B2 JP 2005190892 A JP2005190892 A JP 2005190892A JP 2005190892 A JP2005190892 A JP 2005190892A JP 4713246 B2 JP4713246 B2 JP 4713246B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- gate
- crystal display
- display element
- signal
- 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 - Lifetime
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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
-
- 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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0404—Matrix technologies
- G09G2300/0417—Special arrangements specific to the use of low carrier mobility technology
-
- 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
- G09G2310/0202—Addressing of scan or signal lines
- G09G2310/0205—Simultaneous scanning of several lines in flat panels
-
- 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
- G09G2310/0243—Details of the generation of driving signals
- G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
-
- 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
- G09G2310/08—Details of timing specific for flat panels, other than clock recovery
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
- Shift Register Type Memory (AREA)
Description
112a、112b、113a、113b トランジスタ
114a、114b フリップフロップ
116a、116b、117a、117b 論理ゲート
120a、120b ゲート駆動部
122a、122b シフトレジスタ
124a、124b クロック発生部
Claims (15)
- 複数のゲートラインと複数のデータラインとにより定義される複数の画素を備え、前記各画素に薄膜トランジスタを備える画素領域を含む液晶パネルと、
非晶質半導体からなり前記液晶パネル内に形成されたゲート駆動部であって、前記ゲート駆動部は、前記画素領域内における非晶質半導体からなる薄膜トランジスタの液晶表示素子の有効充電時間(H)より、非晶質半導体の電界効果移動度による走査信号のパルスの立ち上がりの遅延分(t1=t2)だけ長いパルス幅を有する走査信号を、前記ゲートラインを介して前記薄膜トランジスタのゲート電極に入力する、ゲート駆動部と、
前記データラインと接続されて、画像信号を前記データラインを介して前記薄膜トランジスタのソース電極にソース信号として入力するデータ駆動部とを含み、
前記走査信号のターンオン区間は、前記遅延分(t2)と前記有効充電時間(H)とからなり、前記遅延分は、前記非晶質半導体の電界効果移動度により決定されることを特徴とする液晶表示素子。
- 前記ゲート駆動部が、
奇数番目のゲートラインに走査信号を供給する第1のゲート駆動部と、
偶数番目のゲートラインに走査信号を供給する第2のゲート駆動部と、
からなることを特徴とする請求項1に記載の液晶表示素子。
- 前記第1のゲート駆動部及び/又は前記第2のゲート駆動部がそれぞれ同期化された信号を順次出力することを特徴とする請求項2に記載の液晶表示素子。
- 前記第1のゲート駆動部と前記第2のゲート駆動部とから出力されて隣接するゲートラインに供給される走査信号は、パルス幅が重なることを特徴とする請求項2に記載の液晶表示素子。
- 前記隣接するゲートラインに供給される走査信号は、パルス幅が半周期重なることを特徴とする請求項4に記載の液晶表示素子。
- 前記第1のゲート駆動部及び前記第2のゲート駆動部がそれぞれ、
クロック信号を出力するクロック発生部と、
前記クロック発生部から入力されたクロック信号によって出力電圧を出力する複数のシフトレジスタと、
を含むことを特徴とする請求項2に記載の液晶表示素子。
- 前記シフトレジスタに、スタート信号が入力されることを特徴とする請求項6に記載の液晶表示素子。
- 第2段以後のシフトレジスタのスタート信号が、直前段の出力電圧であることを特徴とする請求項7に記載の液晶表示素子。
- 前記第1のゲート駆動部と前記第2のゲート駆動部とから出力されるクロック信号は、一部のパルスが重なることを特徴とする請求項6に記載の液晶表示素子。
- 前記第1のゲート駆動部と前記第2のゲート駆動部とが、前記液晶パネルの左右両側面に配置され、前記奇数番目のゲートラインと前記偶数番目のゲートラインとに両方向から信号を供給することを特徴とする請求項2に記載の液晶表示素子。
- 前記ゲート駆動部が、隣接するゲートラインに、パルス周期の一部がそれぞれのゲートライン間で互いに重なる前記走査信号を供給することを特徴とする請求項1記載の液晶表示装素子。
- 前記隣接するゲートラインに供給される走査信号は、パルス幅が半周期重なることを特徴とする請求項11に記載の液晶表示素子。
- 前記ゲート駆動部が、
奇数番目のゲートラインに走査信号を供給する第1のゲート駆動部と、
偶数番目のゲートラインに走査信号を供給する第2のゲート駆動部と、
からなることを特徴とする請求項11に記載の液晶表示素子。
- 前記第1のゲート駆動部及び前記第2のゲート駆動部がそれぞれ、
クロック信号を出力するクロック発生部と、
前記クロック発生部から入力されたクロック信号によって出力電圧を出力する複数のシフトレジスタと、
を含むことを特徴とする請求項13に記載の液晶表示素子。
- 前記第1のゲート駆動部と前記第2のゲート駆動部とが、前記液晶パネルの左右両側面に配置され、前記奇数番目のゲートラインと前記偶数番目のゲートラインとに両方向から信号を供給することを特徴とする請求項14に記載の液晶表示素子。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040118456A KR101166580B1 (ko) | 2004-12-31 | 2004-12-31 | 액정표시소자 |
| KR2004-118456 | 2004-12-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006189767A JP2006189767A (ja) | 2006-07-20 |
| JP4713246B2 true JP4713246B2 (ja) | 2011-06-29 |
Family
ID=36639811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005190892A Expired - Lifetime JP4713246B2 (ja) | 2004-12-31 | 2005-06-30 | 液晶表示素子 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8049704B2 (ja) |
| JP (1) | JP4713246B2 (ja) |
| KR (1) | KR101166580B1 (ja) |
| CN (1) | CN100401175C (ja) |
| TW (1) | TWI313444B (ja) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101147125B1 (ko) | 2005-05-26 | 2012-05-25 | 엘지디스플레이 주식회사 | 쉬프트 레지스터와 이를 이용한 표시장치 및 그의 구동방법 |
| KR20070111041A (ko) * | 2006-05-16 | 2007-11-21 | 엘지.필립스 엘시디 주식회사 | 액정표시장치 및 이의 구동방법 |
| KR101282401B1 (ko) * | 2006-09-26 | 2013-07-04 | 삼성디스플레이 주식회사 | 액정 표시 장치 |
| US20080211760A1 (en) * | 2006-12-11 | 2008-09-04 | Seung-Soo Baek | Liquid Crystal Display and Gate Driving Circuit Thereof |
| CN100562780C (zh) * | 2007-09-04 | 2009-11-25 | 友达光电股份有限公司 | 双边栅极驱动型的液晶显示器及其驱动方法 |
| US20110001732A1 (en) * | 2008-02-19 | 2011-01-06 | Hideki Morii | Shift register circuit, display device, and method for driving shift register circuit |
| RU2452038C2 (ru) * | 2008-02-19 | 2012-05-27 | Шарп Кабусики Кайся | Дисплейное устройство и способ для возбуждения дисплейного устройства |
| US20100315403A1 (en) * | 2008-02-19 | 2010-12-16 | Shotaro Kaneyoshi | Display device, method for driving the display device, and scan signal line driving circuit |
| KR20100083370A (ko) * | 2009-01-13 | 2010-07-22 | 삼성전자주식회사 | 게이트 구동회로 및 이를 갖는 표시장치 |
| JP5484109B2 (ja) | 2009-02-09 | 2014-05-07 | 三菱電機株式会社 | 電気光学装置 |
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| KR101097347B1 (ko) * | 2010-03-11 | 2011-12-21 | 삼성모바일디스플레이주식회사 | 게이트 구동 회로 및 이를 이용한 표시 장치 |
| CN102222488B (zh) * | 2011-06-27 | 2013-07-03 | 福建华映显示科技有限公司 | 非晶硅显示装置 |
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| KR101939233B1 (ko) * | 2012-05-11 | 2019-04-10 | 엘지디스플레이 주식회사 | 영상표시장치 및 그 구동방법 |
| KR102055328B1 (ko) | 2012-07-18 | 2019-12-13 | 삼성디스플레이 주식회사 | 게이트 드라이버 및 이를 포함하는 표시 장치 |
| TWI469119B (zh) * | 2012-08-06 | 2015-01-11 | Au Optronics Corp | 顯示器及其閘極驅動器 |
| KR101463031B1 (ko) * | 2012-09-27 | 2014-11-18 | 엘지디스플레이 주식회사 | 쉬프트 레지스터 |
| KR101622896B1 (ko) * | 2012-10-19 | 2016-05-19 | 샤프 가부시키가이샤 | 표시 장치 및 그 구동 방법 |
| KR102104332B1 (ko) * | 2013-07-16 | 2020-04-27 | 삼성디스플레이 주식회사 | 게이트 구동부의 에러 검출 장치 및 이를 포함하는 표시 장치 및 이를 이용한 게이트 구동부의 에러 검출 방법 |
| CN104810001B (zh) * | 2015-05-14 | 2017-11-10 | 深圳市华星光电技术有限公司 | 一种液晶显示面板的驱动电路及驱动方法 |
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| KR102364744B1 (ko) * | 2015-08-20 | 2022-02-21 | 삼성디스플레이 주식회사 | 게이트 구동부, 이를 포함하는 표시 장치 및 표시 장치의 구동 방법 |
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| CN106504718A (zh) * | 2016-12-29 | 2017-03-15 | 深圳市华星光电技术有限公司 | 一种驱动电路 |
| KR102458156B1 (ko) * | 2017-08-31 | 2022-10-21 | 엘지디스플레이 주식회사 | 표시 장치 |
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-
2004
- 2004-12-31 KR KR1020040118456A patent/KR101166580B1/ko not_active Expired - Lifetime
-
2005
- 2005-06-22 TW TW094120828A patent/TWI313444B/zh not_active IP Right Cessation
- 2005-06-30 JP JP2005190892A patent/JP4713246B2/ja not_active Expired - Lifetime
- 2005-06-30 CN CNB2005100824341A patent/CN100401175C/zh not_active Expired - Lifetime
- 2005-06-30 US US11/173,168 patent/US8049704B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN1797155A (zh) | 2006-07-05 |
| US20060145991A1 (en) | 2006-07-06 |
| JP2006189767A (ja) | 2006-07-20 |
| KR101166580B1 (ko) | 2012-07-18 |
| US8049704B2 (en) | 2011-11-01 |
| KR20060078492A (ko) | 2006-07-05 |
| TWI313444B (en) | 2009-08-11 |
| CN100401175C (zh) | 2008-07-09 |
| TW200622970A (en) | 2006-07-01 |
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