JP2005031451A - 表示データの記憶装置 - Google Patents
表示データの記憶装置 Download PDFInfo
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- JP2005031451A JP2005031451A JP2003271168A JP2003271168A JP2005031451A JP 2005031451 A JP2005031451 A JP 2005031451A JP 2003271168 A JP2003271168 A JP 2003271168A JP 2003271168 A JP2003271168 A JP 2003271168A JP 2005031451 A JP2005031451 A JP 2005031451A
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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
- 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
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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
- 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
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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
- 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
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
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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
- G09G5/001—Arbitration of resources in a display system, e.g. control of access to frame buffer by video controller and/or main processor
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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
- 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
- G09G2310/0248—Precharge or discharge of column electrodes before or after applying exact column voltages
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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
- 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
- G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
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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
- G09G2310/00—Command of the display device
- G09G2310/08—Details of timing specific for flat panels, other than clock recovery
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0252—Improving the response speed
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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
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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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
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/18—Use of a frame buffer in a display terminal, inclusive of the display panel
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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
- 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)
- Multimedia (AREA)
- Liquid Crystal Display Device Control (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
【解決手段】 LCDコントロールドライバ3において、表示データを記憶する表示用RAM5と、この表示用RAM5を制御する制御回路6と、表示用RAM5から出力された表示データを1ライン分ラッチして、一度にLCDパネル4に対して出力するラッチ部7を設ける。そして、表示用RAM5を複数のバンクに分割する。各バンクは、Y方向に1列に配列されたセル9の列により構成する。そして、バンクAに対して表示データの書込処理を行っているときに、他のバンクから既に書込まれた表示データを読み出せるようにする。
【選択図】 図2
Description
2;CPU
3、43、103;LCDコントロールドライバ
4;LCDパネル
5、25、35、45、105;表示用RAM
6、106;制御回路
7、49、107;ラッチ部
8;記憶素子
9;セル
10;ラッチ
11a;LCD用ワード線
11b;CPU用ワード線
11c;ワード支線
12;データ線
13;ビット線
14、114;配線
15;スイッチ
17;スイッチ線
18;スイッチ
19;回路部
20;信号置換回路
45a、45b;RAM
46;制御回路
47;信号置換回路
48;駆動回路
50a、50b;組
51;配線
111;ワード線
Claims (7)
- 入力された表示データを記憶しこの表示データを表示パネルに対して出力する表示データの記憶装置において、アドレス領域が複数のバンクに分割され前記表示データを記憶する表示メモリと、前記バンク毎に設けられて対応する前記バンクから読み出された表示データを格納する複数のラッチと、一の前記バンクに前記表示データの書込処理が行われているときは前記一のバンクに対応する前記ラッチへ前記一のバンクから読み出された前記表示データを格納することを禁止すると共に、他の前記バンクから前記他のバンクに対応する前記ラッチへ読み出された前記表示データを格納することを許可する制御回路と、を有することを特徴とする表示データの記憶装置。
- 前記複数のラッチは前記表示パネルの1ライン分の表示データを保持し、この1ライン分の表示データを一括して前記表示パネルに対して出力するものであることを特徴とする請求項1に記載の表示データの記憶装置。
- 前記バンクは夫々、複数の記憶素子からなり前記表示パネルの各画素の表示データを記憶し前記各画素に対応するアドレスが割り当てられた複数のセルを有し、中央処理装置から前記表示メモリへアドレス順に前記表示データを書き込む場合に、前記アドレスは、前記表示データの書込処理が同一のバンクに属する前記セルに対して連続して行われないように前記各セルに割り当てられていることを特徴とする請求項1又は2に記載の表示データの記憶装置。
- 前記バンクへの前記表示データの書込処理に要する時間に対する前記バンクからの前記表示データの読出しに要する時間の比をnとし、nより大きい最小の整数をNとするとき、前記バンクが(N+1)個以上設けられており、前記各バンクに対して表示データのアドレス順に表示データの書込処理が行われることを特徴とする請求項1乃至3のいずれか1項に記載の表示データの記憶装置。
- 入力された表示データを記憶しこの表示データを表示パネルに対して出力する表示データの記憶装置において、複数のメモリからなり前記表示データを記憶する表示メモリと、前記メモリ毎に設けられて対応する前記メモリから読み出された表示データを格納する複数のラッチと、一の前記メモリに前記表示データの書込処理が行われているときは前記一のメモリに対応する前記ラッチへ前記一のメモリから読み出された前記表示データを格納することを禁止すると共に、他の前記メモリから前記他のメモリに対応する前記ラッチへ読み出された前記表示データを格納することを許可する制御回路と、を有することを特徴とする表示データの記憶装置。
- 前記複数のラッチは前記表示パネルの1ライン分の表示データを保持し、この1ライン分の表示データを一括して前記表示パネルに対して出力するものであることを特徴とする請求項5に記載の表示データの記憶装置。
- 前記メモリは夫々、複数の記憶素子からなり前記表示パネルの各画素の表示データを記憶し前記各画素に対応するアドレスが割り当てられた複数のセルを有し、中央処理装置から前記表示メモリへアドレス順に前記表示データを書き込む場合に、前記アドレスは、前記表示データの書込処理が同一のメモリに属する前記セルに対して連続して行われないように前記各セルに割り当てられていることを特徴とする請求項5又は6に記載の表示データの記憶装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003271168A JP3816907B2 (ja) | 2003-07-04 | 2003-07-04 | 表示データの記憶装置 |
KR1020040051577A KR100558240B1 (ko) | 2003-07-04 | 2004-07-02 | 메모리 디바이스, 메모리 디바이스를 갖는 디스플레이제어 구동기, 및 디스플레이 제어 구동기를 사용하는디스플레이 장치 |
US10/882,316 US7812848B2 (en) | 2003-07-04 | 2004-07-02 | Memory device, display control driver with the same, and display apparatus using display control driver |
CNB2004100621978A CN100437723C (zh) | 2003-07-04 | 2004-07-05 | 存储设备、带有存储设备的显示控制驱动器、以及使用显示控制驱动器的显示设备 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003271168A JP3816907B2 (ja) | 2003-07-04 | 2003-07-04 | 表示データの記憶装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005031451A true JP2005031451A (ja) | 2005-02-03 |
JP3816907B2 JP3816907B2 (ja) | 2006-08-30 |
Family
ID=33549954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003271168A Expired - Fee Related JP3816907B2 (ja) | 2003-07-04 | 2003-07-04 | 表示データの記憶装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7812848B2 (ja) |
JP (1) | JP3816907B2 (ja) |
KR (1) | KR100558240B1 (ja) |
CN (1) | CN100437723C (ja) |
Cited By (1)
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US8368631B2 (en) | 2006-02-24 | 2013-02-05 | Samsung Electronics Co., Ltd. | Driving integrated circuit and methods thereof |
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JP4010332B2 (ja) * | 2005-06-30 | 2007-11-21 | セイコーエプソン株式会社 | 集積回路装置及び電子機器 |
US7561478B2 (en) * | 2005-06-30 | 2009-07-14 | Seiko Epson Corporation | Integrated circuit device and electronic instrument |
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JP4552776B2 (ja) * | 2005-06-30 | 2010-09-29 | セイコーエプソン株式会社 | 集積回路装置及び電子機器 |
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JP3690277B2 (ja) | 1998-07-09 | 2005-08-31 | セイコーエプソン株式会社 | 駆動装置及び液晶装置 |
JP2001094069A (ja) * | 1999-09-21 | 2001-04-06 | Mitsubishi Electric Corp | 半導体記憶装置 |
US6563743B2 (en) * | 2000-11-27 | 2003-05-13 | Hitachi, Ltd. | Semiconductor device having dummy cells and semiconductor device having dummy cells for redundancy |
US6732247B2 (en) * | 2001-01-17 | 2004-05-04 | University Of Washington | Multi-ported memory having pipelined data banks |
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2003
- 2003-07-04 JP JP2003271168A patent/JP3816907B2/ja not_active Expired - Fee Related
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2004
- 2004-07-02 KR KR1020040051577A patent/KR100558240B1/ko active IP Right Grant
- 2004-07-02 US US10/882,316 patent/US7812848B2/en active Active
- 2004-07-05 CN CNB2004100621978A patent/CN100437723C/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8368631B2 (en) | 2006-02-24 | 2013-02-05 | Samsung Electronics Co., Ltd. | Driving integrated circuit and methods thereof |
Also Published As
Publication number | Publication date |
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CN100437723C (zh) | 2008-11-26 |
US7812848B2 (en) | 2010-10-12 |
CN1577468A (zh) | 2005-02-09 |
KR100558240B1 (ko) | 2006-03-10 |
KR20050004114A (ko) | 2005-01-12 |
JP3816907B2 (ja) | 2006-08-30 |
US20050001846A1 (en) | 2005-01-06 |
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