JP4939847B2 - 平板ディスプレイ装置及びその動作方法 - Google Patents
平板ディスプレイ装置及びその動作方法 Download PDFInfo
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- JP4939847B2 JP4939847B2 JP2006162971A JP2006162971A JP4939847B2 JP 4939847 B2 JP4939847 B2 JP 4939847B2 JP 2006162971 A JP2006162971 A JP 2006162971A JP 2006162971 A JP2006162971 A JP 2006162971A JP 4939847 B2 JP4939847 B2 JP 4939847B2
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- 238000000034 method Methods 0.000 title claims description 7
- 239000003990 capacitor Substances 0.000 claims description 14
- 230000003111 delayed effect Effects 0.000 claims description 9
- 230000001934 delay Effects 0.000 claims description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 27
- 239000010409 thin film Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 230000002950 deficient Effects 0.000 description 7
- 238000005070 sampling Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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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
-
- 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
- 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
-
- 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
- G09G2310/0245—Clearing or presetting the whole screen independently of waveforms, e.g. on power-on
-
- 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
- G09G3/3685—Details of drivers for data electrodes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Description
110 タイミングコントローラ
120 データ駆動回路
130 DC/DCコンバータ
140 ゲート駆動回路
150 液晶パネル
160 データ出力制御回路
210 シフトレジスタ
220 データレジスタ
230 ラッチ
240 レベルスィプト
250 デジタル-アナログ変換器
260 出力バッファ
310 遅延回路
320 パルス発生器
330 ロジック回路
Claims (7)
- データライン、ゲートライン、並びに前記データライン及び前記ゲートラインに接続されたピクセルを含むディスプレイパネルと、
画像データ信号と前記画像データ信号が前記データラインに供給される時点を示す第1ラインラッチ信号を含む制御信号とを出力するタイミングコントローラと、
前記タイミングコントローラからの第一群の前記制御信号及び前記画像データ信号に応答して前記データラインを駆動するデータドライバと、
前記タイミングコントローラからの第二群の前記制御信号に応答して前記ゲートラインを駆動するゲートドライバと、
パワーオン時、所定時間の間前記データラインが駆動されないように前記データドライバを制御する制御回路と、を備え、
前記制御回路は、
外部から供給される外部電源電圧を遅延させ、遅延された外部電源電圧を出力する遅延回路と、
前記外部電源電圧及び前記遅延された外部電源電圧を受信してパルス信号を発生させるパルス発生器と、
前記パルス発生器からの前記パルス信号及び前記タイミングコントローラからの前記第1ラインラッチ信号を受信して、前記画像データ信号を前記データドライバにラッチさせてラッチされた画像データ信号が前記データラインに供給される時点を示す第2ラインラッチ信号を生成して前記データドライバに出力するロジック回路と、を含むことを特徴とするディスプレイ装置。 - 前記制御回路は、
前記パワーオン後、前記遅延回路によって遅延させた前記外部電源電圧の遅延時間に対応する前記所定時間の間、ハイレベルの前記第2ラインラッチ信号を出力することを特徴とする請求項1に記載のディスプレイ装置。 - 前記制御回路は、
前記パワーオンの開始後で前記所定時間の経過後、前記タイミングコントローラから出力される前記第1ラインラッチ信号と同一の前記第2ラインラッチ信号を出力することを特徴とする請求項2に記載のディスプレイ装置。 - 前記ロジック回路はロジックOR演算回路であることを特徴とする請求項1乃至3のいずれか一項に記載のディスプレイ装置。
- 前記制御回路は、
外部から供給された電源電圧と一端が接続された第1抵抗と、
前記第1抵抗の他端と接地電圧との間に接続された容量と、
前記電源電圧と一端が接続された第2抵抗と、
前記第2抵抗の他端と前記接地電圧との間に接続された電流通路及び前記第1抵抗の前記他端と接続されたゲートを有するトランジスタと、
前記第2抵抗の前記他端と接続された入力端及び出力端を有する第1ダイオードと、
前記タイミングコントローラからの前記第1ラインラッチ信号と接続された入力端及び出力端を有する第2ダイオードとを含み、
前記第1及び第2ダイオードそれぞれの前記出力端は共通に接続され、前記第1及び第2ダイオードそれぞれの前記出力端は前記第2ラインラッチ信号を出力することを特徴とする請求項4に記載のディスプレイ装置。 - 前記データドライバは、
水平開始信号に同期してクロック信号をシフトするシフトレジスタと、
前記シフトレジスタから出力されるクロック信号に応答して前記タイミングコントローラからの前記画像データ信号を蓄積するデータレジスタと、
前記制御回路からの前記第2ラインラッチ信号に応答して前記データレジスタに蓄積された前記画像データ信号をラッチするラッチと、
前記ラッチから出力される前記画像データ信号をアナログ画像信号に変換するデジタル−アナログコンバータと、
前記第2ラインラッチ信号に応答して前記デジタル−アナログコンバータからの前記アナログ画像信号を前記データラインに出力する出力バッファとを含むことを特徴とする請求項1乃至5のいずれか一項に記載のディスプレイ装置。 - データライン、ゲートライン、並びに前記データライン及び前記ゲートラインに接続されたピクセルを含むディスプレイパネルと、
画像データ信号と前記画像データ信号が前記データラインに供給される時点を示す第1ラインラッチ信号を含む制御信号とを出力するタイミングコントローラと、
前記タイミングコントローラからの第一群の前記制御信号及び前記画像データ信号に応答して前記データラインを駆動するデータドライバと、
前記タイミングコントローラからの第二群の前記制御信号に応答して前記ゲートラインを駆動するゲートドライバと、
パワーオン時、所定時間の間前記データラインが駆動されないように前記データドライバを制御する制御回路と、を備え、
前記制御回路は、
外部から供給される外部電源電圧を遅延させ、遅延された外部電源電圧を出力する遅延回路と、
前記外部電源電圧及び前記遅延された外部電源電圧を受信してパルス信号を発生させるパルス発生器と、
前記パルス発生器からの前記パルス信号及び前記タイミングコントローラからの前記第1ラインラッチ信号を受信して、前記画像データ信号を前記データドライバにラッチさせてラッチされた画像データ信号が前記データラインに供給される時点を示す第2ラインラッチ信号を生成して前記データドライバに出力するロジック回路と、を含むディスプレイ装置の動作方法において
パワーオンする段階と、
前記所定時間の間前記データドライバをリセットする段階とを含むことを特徴とするディスプレイ装置の動作方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2005-0098210 | 2005-10-18 | ||
KR1020050098210A KR101267019B1 (ko) | 2005-10-18 | 2005-10-18 | 평판 디스플레이 장치 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2007114732A JP2007114732A (ja) | 2007-05-10 |
JP2007114732A5 JP2007114732A5 (ja) | 2009-07-16 |
JP4939847B2 true JP4939847B2 (ja) | 2012-05-30 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006162971A Active JP4939847B2 (ja) | 2005-10-18 | 2006-06-13 | 平板ディスプレイ装置及びその動作方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070085801A1 (ja) |
JP (1) | JP4939847B2 (ja) |
KR (1) | KR101267019B1 (ja) |
CN (1) | CN1953007B (ja) |
TW (1) | TWI420449B (ja) |
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KR102552006B1 (ko) | 2016-11-22 | 2023-07-05 | 주식회사 엘엑스세미콘 | 데이터 구동 장치 및 이를 포함하는 디스플레이 장치 |
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-
2005
- 2005-10-18 KR KR1020050098210A patent/KR101267019B1/ko active IP Right Grant
-
2006
- 2006-05-23 US US11/440,338 patent/US20070085801A1/en not_active Abandoned
- 2006-06-13 JP JP2006162971A patent/JP4939847B2/ja active Active
- 2006-09-11 TW TW095133529A patent/TWI420449B/zh active
- 2006-10-18 CN CN2006101528015A patent/CN1953007B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN1953007A (zh) | 2007-04-25 |
US20070085801A1 (en) | 2007-04-19 |
KR20070042363A (ko) | 2007-04-23 |
KR101267019B1 (ko) | 2013-05-30 |
TWI420449B (zh) | 2013-12-21 |
TW200717409A (en) | 2007-05-01 |
JP2007114732A (ja) | 2007-05-10 |
CN1953007B (zh) | 2011-03-16 |
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