JP2009223016A - 液晶表示装置用ソース駆動回路及びこれを備える液晶表示装置 - Google Patents
液晶表示装置用ソース駆動回路及びこれを備える液晶表示装置 Download PDFInfo
- Publication number
- JP2009223016A JP2009223016A JP2008067646A JP2008067646A JP2009223016A JP 2009223016 A JP2009223016 A JP 2009223016A JP 2008067646 A JP2008067646 A JP 2008067646A JP 2008067646 A JP2008067646 A JP 2008067646A JP 2009223016 A JP2009223016 A JP 2009223016A
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- JP
- Japan
- Prior art keywords
- voltage
- liquid crystal
- crystal display
- driving
- circuit
- 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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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
-
- 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
- G09G3/3696—Generation of voltages supplied to electrode 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
- 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
- G09G2310/0291—Details of output amplifiers or buffers arranged for use in a driving circuit
Abstract
【解決手段】基準電圧を生成する基準電圧回路5と、負階調電圧に表示信号を細分する負電圧駆動用DAC21と、正階調電圧に表示信号を細分する正電圧駆動用DAC41と、液晶表示装置に駆動する負階調電圧を提供する反転アンプ20と、液晶表示装置に駆動する正階調電圧を提供する非反転アンプ40と、負電圧駆動用DAC21及び正電圧駆動用DAC41に前記基準電圧回路から基準電圧を供給する電圧選択器7とを含む。
【選択図】図1
Description
以下、この発明について具体的に説明する。
2 表示コントローラ
3 ゲートドライバ
4 ゲートドライバ制御信号
5 基準電圧回路
6 基準電圧回路
7 電圧選択器
8 電圧選択器
9 DAコンバータ
10 DAコンバータ
11 非反転増幅回路(非反転アンプ)
12 非反転増幅回路(非反転アンプ)
13 液晶表示信号
14 シフトレジスタ
15 レベルシフタ
16 デマルチプレクサ回路
17 出力タイミング信号
18 転送クロック
19 転送パレス
20 反転増幅器(反転アンプ)
21 負電圧駆動用DAC
22 増幅器(アンプ)
201 起動スイッチ
202 セットアップスイッチ
31 負電圧駆動用DAC
32 増幅器(アンプ)
301 起動スイッチ
302 セットアップスイッチ
303 起動スイッチ
304 蓄積容量
305 負帰還蓄積容量
40 非反転増幅器(非反転アンプ)
41 正電圧駆動用DAC
42 増幅器(アンプ)
51 正電圧駆動用DAC
52 増幅器(アンプ)
501 セットアップスイッチ
502 起動スイッチ
504 蓄積容量
61 選択スイッチ
Claims (5)
- 液晶表示装置用ソース駆動回路であって、
基準電圧を生成する基準電圧回路と、正階調電圧に表示信号を細分する正電圧駆動用DACと、負階調電圧に表示信号を細分する負電圧駆動用DACと、前記液晶表示装置に駆動する正階調電圧を提供する非反転増幅器と、前記液晶表示装置に駆動する負階調電圧を提供する反転増幅器と、前記正電圧駆動用DAC及び負電圧駆動用DACに前記基準電圧回路から基準電圧を供給する電圧選択器とを含むことを特徴する液晶表示装置用ソース駆動回路。 - 前記液晶表示装置用ソース駆動回路は、更に、前記正電圧駆動用DAC、負電圧駆動用DAC及び電圧選択器に接続される1つの選択スイッチを含むことを特徴とする請求項1記載の液晶表示装置用ソース駆動回路。
- 前記選択スイッチは前記正電圧駆動用DAC或は負電圧駆動用DACに電圧選択器から基準電圧の出力を切り替えることができることを特徴する請求項2記載の液晶表示装置用ソース駆動回路。
- 請求項1ないし3のいずれか1項に記載の液晶表示装置用ソース駆動回路を備える液晶表示装置。
- 請求項4に記載の液晶表示装置を有する電子装置であって、携帯電話、デジタルカメラ、PDA(パーソナルデジタルアシスタント)、自動車用ディスプレイ、航空用ディスプレイ、デジタルフォトフレーム、またはポータブルDVDプレーヤである電子装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008067646A JP5055605B2 (ja) | 2008-03-17 | 2008-03-17 | 液晶表示装置用ソース駆動回路及びこれを備える液晶表示装置 |
TW098105878A TWI415088B (zh) | 2008-03-17 | 2009-02-24 | 用於液晶顯示裝置之源極驅動電路 |
CN200910004781.0A CN101540151B (zh) | 2008-03-17 | 2009-02-25 | 液晶显示装置用源极驱动电路及具备它的液晶显示装置 |
US12/405,412 US8059115B2 (en) | 2008-03-17 | 2009-03-17 | Source driving circuit of LCD apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008067646A JP5055605B2 (ja) | 2008-03-17 | 2008-03-17 | 液晶表示装置用ソース駆動回路及びこれを備える液晶表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009223016A true JP2009223016A (ja) | 2009-10-01 |
JP5055605B2 JP5055605B2 (ja) | 2012-10-24 |
Family
ID=41062526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008067646A Expired - Fee Related JP5055605B2 (ja) | 2008-03-17 | 2008-03-17 | 液晶表示装置用ソース駆動回路及びこれを備える液晶表示装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8059115B2 (ja) |
JP (1) | JP5055605B2 (ja) |
CN (1) | CN101540151B (ja) |
TW (1) | TWI415088B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014191012A (ja) * | 2013-03-26 | 2014-10-06 | Seiko Epson Corp | 増幅回路、ソースドライバー、電気光学装置及び電子機器 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120105419A1 (en) * | 2010-10-28 | 2012-05-03 | Himax Technologies Limited | Driving Circuit for Liquid Crystal Pixel Array and Liquid Crystal Display Using the Same |
TWI569239B (zh) * | 2012-11-13 | 2017-02-01 | 聯詠科技股份有限公司 | 整合型源極驅動器及其液晶顯示器 |
US9318068B2 (en) * | 2012-11-16 | 2016-04-19 | Apple Inc. | Display driver precharge circuitry |
US9952265B2 (en) * | 2015-01-13 | 2018-04-24 | Apple Inc. | Method for measuring display bond resistances |
CN105895048A (zh) * | 2016-06-27 | 2016-08-24 | 深圳市国显科技有限公司 | 一种平板电脑液晶显示屏驱动电路 |
CN108153078A (zh) * | 2016-12-05 | 2018-06-12 | 达意科技股份有限公司 | 电泳式显示面板 |
CN109509420B (zh) * | 2018-12-25 | 2021-11-30 | 惠科股份有限公司 | 参考电压产生电路及显示装置 |
Citations (6)
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JPH0594159A (ja) * | 1991-04-26 | 1993-04-16 | Matsushita Electric Ind Co Ltd | 液晶駆動装置 |
JPH10260664A (ja) * | 1997-01-16 | 1998-09-29 | Nec Corp | 液晶駆動回路とこれを用いた液晶装置 |
JP2000137207A (ja) * | 1998-11-04 | 2000-05-16 | Oki Electric Ind Co Ltd | 液晶表示器駆動回路 |
JP2004012890A (ja) * | 2002-06-07 | 2004-01-15 | Sanyo Electric Co Ltd | 表示装置 |
JP2006292807A (ja) * | 2005-04-06 | 2006-10-26 | Renesas Technology Corp | 液晶表示駆動用半導体集積回路 |
JP2006350358A (ja) * | 2005-06-16 | 2006-12-28 | Samsung Electronics Co Ltd | 表示装置と表示装置の駆動装置及び集積回路 |
Family Cites Families (10)
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FR2398408A1 (fr) * | 1977-07-21 | 1979-02-16 | Cit Alcatel | Circuit de limitation de la tension de sortie d'un amplificateur |
NL8400633A (nl) * | 1984-02-29 | 1985-09-16 | Philips Nv | Versterkerschakeling. |
US5166632A (en) * | 1991-10-10 | 1992-11-24 | Westinghouse Electric Corp. | Limiter circuit with means to eliminate offset and an optional selective threshold |
US5731796A (en) * | 1992-10-15 | 1998-03-24 | Hitachi, Ltd. | Liquid crystal display driving method/driving circuit capable of being driven with equal voltages |
US6014122A (en) * | 1997-01-16 | 2000-01-11 | Nec Corporation | Liquid crystal driving circuit for driving a liquid crystal display panel |
US6316995B1 (en) * | 2000-06-02 | 2001-11-13 | National Semiconductor Corporation | Input stage for constant gm amplifier circuit and method |
JP4676183B2 (ja) * | 2004-09-24 | 2011-04-27 | パナソニック株式会社 | 階調電圧生成装置,液晶駆動装置,液晶表示装置 |
TWI283386B (en) * | 2006-03-31 | 2007-07-01 | Au Optronics Corp | Liquid crystal display device and driving circuit |
CN100378794C (zh) * | 2006-07-05 | 2008-04-02 | 友达光电股份有限公司 | 数字模拟转换单元及应用该单元的驱动装置与面板显示装置 |
US7639059B1 (en) * | 2007-09-12 | 2009-12-29 | National Semiconductor Corporation | Fast settling reference voltage buffer with wide reference range |
-
2008
- 2008-03-17 JP JP2008067646A patent/JP5055605B2/ja not_active Expired - Fee Related
-
2009
- 2009-02-24 TW TW098105878A patent/TWI415088B/zh not_active IP Right Cessation
- 2009-02-25 CN CN200910004781.0A patent/CN101540151B/zh not_active Expired - Fee Related
- 2009-03-17 US US12/405,412 patent/US8059115B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0594159A (ja) * | 1991-04-26 | 1993-04-16 | Matsushita Electric Ind Co Ltd | 液晶駆動装置 |
JPH10260664A (ja) * | 1997-01-16 | 1998-09-29 | Nec Corp | 液晶駆動回路とこれを用いた液晶装置 |
JP2000137207A (ja) * | 1998-11-04 | 2000-05-16 | Oki Electric Ind Co Ltd | 液晶表示器駆動回路 |
JP2004012890A (ja) * | 2002-06-07 | 2004-01-15 | Sanyo Electric Co Ltd | 表示装置 |
JP2006292807A (ja) * | 2005-04-06 | 2006-10-26 | Renesas Technology Corp | 液晶表示駆動用半導体集積回路 |
JP2006350358A (ja) * | 2005-06-16 | 2006-12-28 | Samsung Electronics Co Ltd | 表示装置と表示装置の駆動装置及び集積回路 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014191012A (ja) * | 2013-03-26 | 2014-10-06 | Seiko Epson Corp | 増幅回路、ソースドライバー、電気光学装置及び電子機器 |
Also Published As
Publication number | Publication date |
---|---|
TWI415088B (zh) | 2013-11-11 |
JP5055605B2 (ja) | 2012-10-24 |
US20090231321A1 (en) | 2009-09-17 |
TW200951931A (en) | 2009-12-16 |
CN101540151B (zh) | 2013-04-10 |
US8059115B2 (en) | 2011-11-15 |
CN101540151A (zh) | 2009-09-23 |
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