JP4291663B2 - 液晶表示装置 - Google Patents
液晶表示装置 Download PDFInfo
- Publication number
- JP4291663B2 JP4291663B2 JP2003351350A JP2003351350A JP4291663B2 JP 4291663 B2 JP4291663 B2 JP 4291663B2 JP 2003351350 A JP2003351350 A JP 2003351350A JP 2003351350 A JP2003351350 A JP 2003351350A JP 4291663 B2 JP4291663 B2 JP 4291663B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- frequency
- liquid crystal
- crystal display
- digital 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
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 18
- GJWAPAVRQYYSTK-UHFFFAOYSA-N [(dimethyl-$l^{3}-silanyl)amino]-dimethylsilicon Chemical compound C[Si](C)N[Si](C)C GJWAPAVRQYYSTK-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G5/005—Adapting incoming signals to the display format of the display terminal
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G5/006—Details of the interface to the display terminal
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
Description
図1に示すように、液晶表示装置は大別して、外部のデータと電源とを受け取る変換ボードと、変換ボードの出力をLVDSレベルに転換させるLVDS部と、入力部を介してLVDS部からデータと電源を供給されるLCDモジュールとからなる。
ここで、変換ボードは、ディジタル信号受信用のディジタル信号レシーバー(TMDSレシーバー)と解像度の調節のためのスケーラーを含み、LCDモジュールは、LCDパネルに装着される駆動ICを動作させるためのデータ、クロック信号及び各種制御信号を出力するタイミング制御部の以外にLCDパネル、駆動IC、インバータ及びバックライト等からなる。
本発明において、2分周されるドット信号の周波数が前記駆動装置で使用される周波数より高い場合には、ディジタル信号レシーバーの2チャネルを使用して前記液晶表示装置のモジュールに前記ディジタル信号を印加し、2分周されるドット信号の周波数が前記駆動装置で使用される周波数より低い場合には、ディジタル信号レシーバーの1チャネルを使用して前記液晶表示装置のモジュールに前記ディジタル信号を印加する。
本発明において、ドット信号の周波数を判断するために、前記比較機には前記ディジタルデータ信号中で垂直周波数信号または水平周波数信号を印加する。
図3は、本発明に係る変換ボードを備える液晶表示装置の実施の形態である。図3に示すように、本発明に係る液晶表示装置の変換ボードは、ディジタル信号受信用のディジタル信号レシーバー(TMDSレシーバー)と比較機とを備えており、以下のように動作する。
Claims (2)
- 外部電源とドット信号を含むディジタルデータ信号を受信する変換ボードを備える液晶表示装置において、前記変換ボードは、
前記外部電源及び前記ドット信号と、を含むディジタル信号を受信するディジタル信号レシーバーと、
前記ディジタル信号レシーバーから2分周され、出力される前記ドット信号の周波数が前記液晶表示装置のタイミング制御部及び駆動ICを動作させることに必要な最小周波数より高いかどうかを比較する比較機を備え、
前記2分周されたドット信号の周波数が前記タイミング制御部及び駆動ICを動作させることに必要な最小周波数より高い場合には、前記ディジタル信号レシーバーの2チャネルを使用して前記液晶表示装置のモジュールに前記ディジタル信号を印加し、前記2分周されたドット信号の周波数が前記タイミング制御部及び駆動ICを動作させることに必要な最小周波数より低い場合には、前記ディジタル信号レシーバーの1チャネルを使用して前記液晶表示装置のモジュールに前記ディジタル信号を印加することを特徴とする液晶表示装置。 - 前記ドット信号の周波数を判断するために、前記比較機には前記ディジタルデータ信号中で垂直周波数信号または水平周波数信号を印加することを特徴とする請求項1に記載の液晶表示装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-0019949A KR100494713B1 (ko) | 2003-03-31 | 2003-03-31 | 액정표시장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004302415A JP2004302415A (ja) | 2004-10-28 |
JP4291663B2 true JP4291663B2 (ja) | 2009-07-08 |
Family
ID=32985909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003351350A Expired - Lifetime JP4291663B2 (ja) | 2003-03-31 | 2003-10-09 | 液晶表示装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7209134B2 (ja) |
JP (1) | JP4291663B2 (ja) |
KR (1) | KR100494713B1 (ja) |
CN (1) | CN100370505C (ja) |
TW (1) | TWI249725B (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004341101A (ja) * | 2003-05-14 | 2004-12-02 | Nec Corp | 表示パネル駆動装置 |
JP2005234241A (ja) * | 2004-02-19 | 2005-09-02 | Sharp Corp | 液晶表示装置 |
US20070182342A1 (en) * | 2005-08-02 | 2007-08-09 | Texas Instruments Incorporated | Lcd backlight driver |
TWI284872B (en) * | 2005-11-22 | 2007-08-01 | Chi Mei Optoelectronics Corp | Flat panel display having a data transfer interface with multi-channels and image transfer method thereof |
JP4171927B2 (ja) * | 2006-09-19 | 2008-10-29 | 船井電機株式会社 | 液晶パネル、プラズマ表示パネルおよびワイド型液晶テレビジョン |
KR101386457B1 (ko) * | 2007-05-22 | 2014-04-18 | 삼성디스플레이 주식회사 | 액정 표시 장치 및 이의 구동 방법 |
TWI380269B (en) * | 2007-10-05 | 2012-12-21 | Au Optronics Corp | Display and method of transmitting image data therein |
CN106515771B (zh) * | 2016-12-14 | 2018-08-03 | 中车株洲电力机车有限公司 | 一种轨道车辆定频空调的压缩机控制方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3756203B2 (ja) * | 1993-09-22 | 2006-03-15 | セイコーエプソン株式会社 | 記憶回路およびフラットパネル駆動回路 |
JPH0944122A (ja) * | 1995-08-03 | 1997-02-14 | Sharp Corp | 液晶表示システム |
KR100596586B1 (ko) * | 1999-07-20 | 2006-07-04 | 삼성전자주식회사 | 액정 디스플레이 장치의 화면상태 자동조정장치 및 그 방법 |
KR100327369B1 (ko) * | 1999-07-31 | 2002-03-06 | 구자홍 | 컴퓨터 시스템의 영상정보 인터페이스 장치 및 방법 |
US6313813B1 (en) * | 1999-10-21 | 2001-11-06 | Sony Corporation | Single horizontal scan range CRT monitor |
JP3838844B2 (ja) * | 2000-02-14 | 2006-10-25 | Necビューテクノロジー株式会社 | 基準信号生成装置及びその信号生成方法 |
TW493159B (en) * | 2001-01-05 | 2002-07-01 | Acer Peripherals Inc | Method and device to detect the full-screen size by data enable signal |
-
2003
- 2003-03-31 KR KR10-2003-0019949A patent/KR100494713B1/ko active IP Right Grant
- 2003-09-23 TW TW092126148A patent/TWI249725B/zh not_active IP Right Cessation
- 2003-09-24 US US10/669,995 patent/US7209134B2/en active Active
- 2003-10-09 JP JP2003351350A patent/JP4291663B2/ja not_active Expired - Lifetime
- 2003-11-03 CN CNB2003101141140A patent/CN100370505C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2004302415A (ja) | 2004-10-28 |
US7209134B2 (en) | 2007-04-24 |
KR100494713B1 (ko) | 2005-06-13 |
TW200419516A (en) | 2004-10-01 |
KR20040085306A (ko) | 2004-10-08 |
TWI249725B (en) | 2006-02-21 |
US20040189628A1 (en) | 2004-09-30 |
CN1534584A (zh) | 2004-10-06 |
CN100370505C (zh) | 2008-02-20 |
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