CN1168984A - Lcd驱动回路 - Google Patents

Lcd驱动回路 Download PDF

Info

Publication number
CN1168984A
CN1168984A CN96109665A CN96109665A CN1168984A CN 1168984 A CN1168984 A CN 1168984A CN 96109665 A CN96109665 A CN 96109665A CN 96109665 A CN96109665 A CN 96109665A CN 1168984 A CN1168984 A CN 1168984A
Authority
CN
China
Prior art keywords
loop
lcd
mentioned
drives
driving
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.)
Granted
Application number
CN96109665A
Other languages
English (en)
Other versions
CN1078712C (zh
Inventor
川畑贤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Display Co Ltd
Original Assignee
FRANDICK Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FRANDICK Co Ltd filed Critical FRANDICK Co Ltd
Publication of CN1168984A publication Critical patent/CN1168984A/zh
Application granted granted Critical
Publication of CN1078712C publication Critical patent/CN1078712C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3674Details of drivers for scan electrodes
    • G09G3/3677Details of drivers for scan electrodes suitable for active matrices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

本发明提供一种电力消耗小的LCD驱动回路。它是由用移位寄存器和调整/重调整式双稳态多谐振荡器和阻尼器部分组成的,被反复依次驱动的多段TFT-LCD驱动回路20-1~20-240构成;各段的调整输入部与前段的驱动回路的输出端子相连接,各段的重调整输入部与后段的输出端子相连接,只在从前段的驱动开始时到后段的驱动开始时这段时间里,使该段的阻尼器部分的动作偏置电流接通。

Description

LCD驱动回路
本发明涉及与液晶显示板成一体地形成的LCD驱动回路,尤其是能较好地用在TFT-LCD的LCD驱动回路。
TFT-LCD(薄膜晶体管-液晶显示装置)的领域中,至今还在进行着将驱动回路装在LCD本体里的试验。
这是因为一般把驱动LCD用的驱动回路形成集成电路后配置在LCD的周围。即,是因为用LCD的显示板等形成镜框状,将实际的LCD的显示面积缩小了。
为解决上述问题,在构成LCD的玻璃基板上形成作为驱动LCD的回路,例如形成由n波道FET(Field Effect Transistor)构成的移位寄存器。
这个由n波道FET构成的移位寄存器大致区分如下。
图8(a)、(b)分别表示n波道移位寄存器的结构示意图,图8(a)是由比例回路构成的移位寄存器。
在图8(a)所示的移位寄存器上,将相互反相的时标信号供给时标输入端子φ1和φ-1。由此,在φ1处于"H"(高电平)时,读入输入端子D的值,在φ1处于"H-"时,在输出端子Q呈现被读入的输入端子D的状态。在这图中,Vd是漏极电压(电源)。
但是在上述的比例,回路上流过固定的穿透电流。因此消耗电力较大,阻碍回路小型化。
另一方面,图8(b)是由非比例回路构成的移位寄存器。在图8(b)所示的移位寄存器上将图8(c)所示的各个相位不同的脉冲状的时标信号供给时标输入端子φ1~φ4。在这回路中,φ1处于"H"时,使C充电;在φ2处于"H"时,读入输入端子D的值;在φ4处于"H"时在输出端子Q上反映出被读入的输入端子D的状态。
但是,在上述非比例回路中,为了维持动作,有脉冲混入输出信号的问题。
为了解决这问题,在输出端子Q上必需连接作为阻尼器的静态倒相器,结果造成消耗的电力增加。
一般,TFT-LCD都使用根据所谓的电视信号(具有亮度信号和同步信号的复合信号)显示图像的装置作为替代CRT(Cathode Ray Tube)的显示装置
至今,在电视信号类里存在与CRT的扫描特性和余辉特性相对应的按垂直同步时间的垂直回描线期间和按水平同步时间的水平回描线期间。
在日本专利公报特开平6-337655号等公开了一种在上述两种回描线期间,将插入在移位寄存器的输出端子的全部阻尼器的动作停止,以减轻LCD的消耗电力的技术。
但是用上述公报所公开的技术只能将LCD的驱动回路的消耗电力减少10~20%左右。
本发明是为了解决现有技术存在的上述问题而作出的,其目的是提供一种电力消耗少的LCD驱动回路。
为了达到上述目的而作出的本发明的LCD驱动回路,其特征在于:设有多段驱动回路,这些驱动回路是具有使被输入的驱动信号与被输入的同步信号同步后变换成输出信号而输出的移位寄存器;由动作偏置电流驱动,根据上述移位寄存器的输出信号,输出使LCD驱动的驱动信号的阻尼器部分,设有将上述动作偏置电流加到阻尼器部分上的调整输入部和切断流向上述阻尼器部分的动作偏置电流的重调整输入部的双稳态多谐振荡器的,由上述同步信号依次扫描的多段驱动回路中的各段的双稳态多谐振荡器的调整输入部被连接在该驱动回路的前段驱动回路的与LCD相连接的输出端上,各段驱动回路的上述双稳态多谐振荡器的重调整输入部被连接在该驱动回路的后段驱动回路的与LCD相连接的输出端上。
而且,本发明可做成从外部将驱动信号输入到上述多段驱动回路中的第1段驱动回路的双稳态多谐振荡器的调整输入部。
本发明可做成将切断上述多段驱动回路中的最后一段驱动回路的动作偏置电流的停止信号输入到该驱动回路的双稳态多谐振荡器的重调整输入部。
而且,本发明中的移位寄存器可使用非比例式移位寄存器。
此外,本发明的上述阻尼器部分可由多个电压效果型的晶体管和由上述多个电压效果型晶体管形成的自举回路构成。
本发明的LCD驱动回路是由用移位寄存器和调整/重调整式双稳态多谐振荡器和阻尼器部分组成的,被反复依次驱动的多段驱动回路构成,各段的调整输入部与前段驱动回路的输出端子相连接,各段的重调整输入部与后段的输出端子相连接,只在从前段的驱动开始时到后段的驱动开始时这段时间里,使该段的阻尼器部分的动作偏置电流接通。
图1是表示本发明的LCD驱动回路特征部分的阻尼器部分10的动作原理的示意图,其中的图1(a)是表示阻尼器部分的结构的原理图,图1(b)是表示图1(a)所示回路的各部分信号变化的样子的示意图;
图2是表示本发明第1实施例的LCD驱动回路的结构的连接图;
图3是表示上述实施例中各部分信号的变化样子的时间图表;
图4是表示本发明第2实施例的LCD驱动回路的结构的连接图;
图5是表示本发明第3实施例的LCD驱动回路的结构的连接图;
图6是表示在本发明实施例的构成LCD驱动回路的门脉冲线的最终阶段上设置使漏极电流停止用的END端子的结构示意图;
图7是表示图6所示结构的各部分信号的样子的时间图表;
图8是表示以前的用在LCD驱动回路上的时间移位寄存器的结构示意图,其中,图8(a)是表示由比例回路构成的例子,图8(b)是表示由非比例回路构成的例子,图8(c)是表示供给图8(b)所示结构的各个时标输入端子φ1~φ4的时标信号的示意图。
下面,说明本发明的实施例。图1是说明作为本发明的LCD驱动回路的特征部分的阻尼器回路10的动作原理的示意图,其中的图1(a)是结构图,图1(b)是表示图1(a)所示回路的各部分信号变化的样子的时间图表。
如图1(a)所示,阻尼器回路10的结构包括由FET1-1、FET1-2构成的双稳态多谐振荡器2和由FET3-1、FET3-2构成的阻尼器部分10。
一般,TFT-LCD的各个象素被配置在有FET(将其称为TFT),由多条数据线和多条门脉冲线形成的矩阵的各个交点处。其中,各条门脉冲线与构成电视画面的各条扫描线相对应。因而,在门脉冲线的各段中不会在同一时刻、多条门脉冲线同时成为"H"。
在本发明中,用图1(a)所示的阻尼器部分10,由前段的门脉冲信号使其开始动作,由后段的门脉冲信号使其停止动作。
具体的动作如图1(b)所示,例如,n段数的阻尼器部分10在时间tn-1时被输入它的前段的n-1段数的门脉冲信号i-1。这时,由于FET1-1接通,电容Ca由漏极电压Vd充电,而且FET3-1接通,开始流过漏极电流Id(动作偏置电流)。
当漏极电流Id流过时,输入端子j的信号被逆转后输出到输出端子i。
而在时间tn+1时,被输入它的后段的n+1段数的门脉冲信号i+1。由此,FET1-2接通,电容Ca放电,其结果FET3-1断开,使漏极电流Id停止。
通过将阻尼器部分10形成这样的结构,使整体的电力消耗减少,例如,如果门脉冲线是k段,则电力消耗就为2/k倍、段数越增加、效果越大。
图2是表示本发明第1实施例的LCD驱动回路的结构的连接图。在本实施例中,门脉冲线由240段构成,与此相应地,将这结构的驱动回路形成设有240组的结构。
因此,下面只表示驱动回路20-1,并对其进行说明,省略对驱动回路20-2~驱动回路20-240的说明。
虽然表示本实施例的LCD驱动回路是由非晶形硅处理、在构成液晶显示板的玻璃板上成一体地形成,但这里省略对机械结构的说明。
在图2中,FFT21-1~21-6和电容Cb、Cc构成非比例式移位寄存器30。其中,φ1处在"H"时,使电容Cb充电;φ2处在"H"时,读入输入端子IN的电平。而φ3处在"H"时,使电容Cc充电;φ4处在"H"时,上次读入的输入端子IN的电平状态被反映成电容Cc的端子电平。
FET22-1~22-6和电容器ed也构成非比例式移位寄存器30,但在这些回路中,作为阻尼器部分10的预置阻尼器而动作。
在FET21-2的门脉冲端子上输入作为电容Cb的端子电平的Sr1。这样,φ3处在"H"时,使Cd充电;φ4处在"H"时,电容Cb的端子电平被反映成电容Cd的端子电平。而且,在φ2成为"H"时,电容Cd的端子电平被作为Pb1输出。
图3是表示时标信号φ1~φ4和输入端子IN、和TFT-LCD驱动回路20-1的各部分和TFT-LCD驱动回路20-2的输出端子G2的信号样子的时间图表。下面,参照图2和图3、对本实施例的动作进行说明。
当输入端子IN成为"H"(时间t01)时,由于驱动回路20-1上FET1-1接通,使电容Ca充电。由于FET3-1接通,流过漏极电流Id1(即bc1的电平变高,使阻尼器部分10开始动作)。
在输入端子IN是"H"时,当φ2成为"H"时(即时间t02),Sr1成为"L(低电平)"。此后当φ4成为"H"(时间t04)时,电容Cc的端子电平反映输入端子IN的状态而成为"H",向驱动回路20-2设有的FET21-3的门电路供给。
上述Sr1在时间经过一轮之后,在下一次φ1成为"H"(时间t11)前,保持着"L",这时FET21-1接通,成为"H"。此后,当φ2成为"H"(时间t12)时,Sr1的状态被反映成Pb1,成为"L"。这个Pb1在φ1下一次成为"H"(时间t21)之前,保持"L",这时FET22-4接通,成为"H"。
在bc1的电平处在高的时间里(从时间t01到下述的t22),Pb1成为"L"时,驱动回路20-1的输出端子G1成为"H"。即在本实施例中,在输入端子IN成为"H"之后,在φ2第2次成为"H"(时间t12)时,输出端子G1成为"H"。
当输出端子G1成为"H"时,在驱动回路20-2上,FET1-1接通,结果FET3-1上流过漏极电流Id2(即,图上没表示的bc2的电平变高,使阻尼器部分10开始动作)。
此后,驱动回路20-2经过与上述回路20-1同样的动作,在输入端子IN成为"H"之后,φ2第3次成为"H"(时间t22)时,输出端子G2成为"H"。
当输出端子G2成为"H"时,由于驱动回路20-1上的FET1-2接通,bc1的电平变低(即,使阻尼器部分10停止动作)。
驱动回路20-2在时间又经过一轮,φ1成为"H"时(时间t31)之前,使输出端子G2维持成"H",这时FET22-4和3-2接通,成为"L"。
依次反复与驱动回路20-3、20-4……同样的动作,半输入端子IN的端子电平("")传送到驱动回路20-240。
驱动回路20-240设有的FET1-2的门电路连接在输入端子IN上。这样,当输入端子IN下一次成为"H"时,TFT-LCD驱动回路20-240上的FET1-2接通,bc240(图中省略)的电平变低,因而使阻尼器部分10停止动作。
这样,在240段的门脉冲线内,只把2段作成动作状态,其余通过切断阻尼器的偏置电流(漏极电流)而使全部回路的电力消耗降低,本实施例约是100mW。
在图2所示的实施例中,将作为阻尼器部分10的预置阻尼器而进行动作的那部分中的FET22-1~22-6和电容Cd省略,将移位寄存器30的输出Sr1直接输入到阻尼器部分10的FET3-2的门电路端子上,也可取得同样的作用。
图4是表示本发明第2实施例的LCD驱动回路结构的连接图。这图所示的驱动回路20a-1、20a-2……20a-240分别形成使用阻尼器部分10a的结构
阻尼器部分10a在阻尼器部分10(参照图1)所示的FET3-1、3-2的后段设置由FET5-1和FET5-2构成的推挽式的变换器。
本实施例的动作的大致情况和第1实施例同样的,因而省略对其详细的说明,但使用本结构,能得到较大的输出幅度(输出电平幅度)。
由于在需要偏置电流的部位能用小型的晶(FET),因而能使电力消耗进一步降低,本实施例大约是10mW。
图5是表示本发明第3实施例的LCD驱动回路的结构的连接图。这图中所示的驱动回路20b-1、20b-2、……20b-240分别形成使用阻尼器部分10b的结构。
阻尼器部分10b是在阻尼器部分10a(参照图4)所示的EFT5的门电路~源之间插入电容Ce,这些形成自觉回路。
由于本实施例的动作的大致情况和第2实施例同样,因而省略对它的说明。
在上述的各个实施例中,最终段(240段)的漏极电流由输入到输入端子IN的输入信号使其停止。但是,在本发明中,例如图6所示,使最终段的FET1-2上停止流过漏极电流用的END端子可被独立地设置。
在图6所示的结构中,输出端子G240的输出期间结束后,通过把形成停止信号的"H"信号输入到END端子,就能如图7所示地使垂直回描线期间里全部漏极电流都停止。
例如在上述的第1实施例里应用图6所示的设置END端子的结构时,它的电力消耗进一步降低10%左右。
图4、5和图6所示的任何一个实施例和图2所示的实施例一样,把作为阻尼器部分10的预置阻尼器而动作的部分中的FET22-1~22-6和电容Cd省略,把移位寄存器30的输出Sr1直接输入阻尼器部分10的FET3-2的门电路端子也可得到同样的作用。
在各个实施例中所示的门脉冲线的段数和时标信号的相数也不局限于上述各实施例,其他数也适用于本发明。
如上所述,本发明是由移位寄存器和调整/重调整式双稳态多谐振荡器和阻尼器部分形成LCD驱动回路,由反复依次驱动的多段的驱动回路构成,各段的调整输入端子与前段的驱动回路的输出端子相接,各段的重调整输入端子与后段的输出端子相接,只在从前段的驱动开始到后段的驱动开始这段时期,使该段的阻尼器部分的动作偏置电流接通,因而能得到电力消耗小的LCD驱动回路的效果。

Claims (5)

1.LCD驱动回路,其特征在于:设有多段驱动回路,这些驱动回路是具有使被输入的驱动信号与被输入的同步信号同步后变换成输出信号而输出的移位寄存器;由动作偏置电流驱动,根据上述移位寄存器的输出信号,输出使LCD驱动的驱动信号的阻尼器部分;设有将上述动作偏置电流加到阻尼器部分上的调整输入部与切断流向上述阻尼器部分的动作偏置电流的重调整输入部的双稳态多谐振荡器的,由上述同步信号依次扫描的多段驱动回路中的各段的双稳态多谐振荡器的调整输入部被连接在该驱动回路的前段驱动回路的与LCD相连接的输出端上,各段驱动回路的上述双稳态多谐振荡器的重调整输入部被连接在该驱动回路的后段驱动回路的与LCD相连接的输出端上。
2.如权利要求1所述的LCD驱动回路,其特征在于:从外部将驱动信号输入到上述多段驱动回路中的第1段驱动回路的双稳态多谐振荡器的调整输入部。
3.如权利要求1所述的LCD驱动回路,其特征在于:将切断上述多段驱动回路中的最后一段驱动回路的动作偏置电流的停止信号输入到该段驱动回路的双稳态多谐振荡器的重调整输入部。
4.如权利要求1所述的LCD驱动回路,其特征在于:上述移位寄存器使用非比例式移位寄存器回路。
5.如权利要求1所述的LCD驱动回路,其特征在于:上述阻尼器部分由多个电压效果型的晶体管和由上述多个电压效果型的晶体管形成的自举回路构成。
CN96109665A 1995-09-07 1996-09-06 液晶显示器驱动回路 Expired - Lifetime CN1078712C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP230562/95 1995-09-07
JP23056295A JP3272209B2 (ja) 1995-09-07 1995-09-07 Lcd駆動回路

Publications (2)

Publication Number Publication Date
CN1168984A true CN1168984A (zh) 1997-12-31
CN1078712C CN1078712C (zh) 2002-01-30

Family

ID=16909705

Family Applications (1)

Application Number Title Priority Date Filing Date
CN96109665A Expired - Lifetime CN1078712C (zh) 1995-09-07 1996-09-06 液晶显示器驱动回路

Country Status (5)

Country Link
US (1) US5870071A (zh)
JP (1) JP3272209B2 (zh)
KR (1) KR0185026B1 (zh)
CN (1) CN1078712C (zh)
TW (1) TW343325B (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100362557C (zh) * 2003-07-09 2008-01-16 夏普株式会社 移位寄存器及采用它的显示装置
CN100437726C (zh) * 2003-11-19 2008-11-26 Nxp股份有限公司 驱动显示装置的电路装置
CN102419961A (zh) * 2001-04-27 2012-04-18 株式会社半导体能源研究所 半导体器件
CN101540139B (zh) * 2008-03-18 2012-07-18 索尼株式会社 半导体设备、显示面板和电子器件
CN103871372A (zh) * 2012-12-18 2014-06-18 乐金显示有限公司 用于驱动发光二极管阵列的装置及使用其的液晶显示装置

Families Citing this family (122)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3992776B2 (ja) * 1997-02-27 2007-10-17 シチズンホールディングス株式会社 液晶表示装置の駆動回路
JP3385301B2 (ja) * 1997-04-23 2003-03-10 シャープ株式会社 データ信号線駆動回路および画像表示装置
KR100492986B1 (ko) * 1997-08-28 2005-08-05 삼성전자주식회사 박막트랜지스터액정표시소자게이트구동회로
TW491959B (en) 1998-05-07 2002-06-21 Fron Tec Kk Active matrix type liquid crystal display devices, and substrate for the same
US7569849B2 (en) * 2001-02-16 2009-08-04 Ignis Innovation Inc. Pixel driver circuit and pixel circuit having the pixel driver circuit
JP4439761B2 (ja) * 2001-05-11 2010-03-24 株式会社半導体エネルギー研究所 液晶表示装置、電子機器
JP2002350808A (ja) 2001-05-24 2002-12-04 Sanyo Electric Co Ltd 駆動回路および表示装置
TW582005B (en) * 2001-05-29 2004-04-01 Semiconductor Energy Lab Pulse output circuit, shift register, and display device
TW554558B (en) * 2001-07-16 2003-09-21 Semiconductor Energy Lab Light emitting device
US6788108B2 (en) 2001-07-30 2004-09-07 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device
JP4831895B2 (ja) * 2001-08-03 2011-12-07 株式会社半導体エネルギー研究所 半導体装置
US7218349B2 (en) * 2001-08-09 2007-05-15 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device
JP4869516B2 (ja) * 2001-08-10 2012-02-08 株式会社半導体エネルギー研究所 半導体装置
CA2355067A1 (en) 2001-08-15 2003-02-15 Ignis Innovations Inc. Metastability insensitive integrated thin film multiplexer
KR100940342B1 (ko) * 2001-11-13 2010-02-04 가부시키가이샤 한도오따이 에네루기 켄큐쇼 표시장치 및 그 구동방법
JP4397555B2 (ja) 2001-11-30 2010-01-13 株式会社半導体エネルギー研究所 半導体装置、電子機器
JP3918634B2 (ja) * 2002-05-30 2007-05-23 ソニー株式会社 タイミング発生回路、表示装置および携帯端末
KR100493385B1 (ko) * 2002-12-17 2005-06-07 엘지.필립스 엘시디 주식회사 액정표시패널의 양 방향 구동 회로
KR100910562B1 (ko) * 2002-12-17 2009-08-03 삼성전자주식회사 표시 장치의 구동 장치
JP4339103B2 (ja) 2002-12-25 2009-10-07 株式会社半導体エネルギー研究所 半導体装置及び表示装置
CA2419704A1 (en) 2003-02-24 2004-08-24 Ignis Innovation Inc. Method of manufacturing a pixel with organic light-emitting diode
CA2443206A1 (en) 2003-09-23 2005-03-23 Ignis Innovation Inc. Amoled display backplanes - pixel driver circuits, array architecture, and external compensation
JP2005235311A (ja) * 2004-02-19 2005-09-02 Olympus Corp 信号伝送回路
CA2472671A1 (en) 2004-06-29 2005-12-29 Ignis Innovation Inc. Voltage-programming scheme for current-driven amoled displays
KR101044920B1 (ko) * 2004-07-28 2011-06-28 엘지디스플레이 주식회사 액정표시장치용 게이트 구동회로 및 이를 이용한액정표시장치
GB0417132D0 (en) * 2004-07-31 2004-09-01 Koninkl Philips Electronics Nv A shift register circuit
CA2490858A1 (en) 2004-12-07 2006-06-07 Ignis Innovation Inc. Driving method for compensated voltage-programming of amoled displays
US8576217B2 (en) 2011-05-20 2013-11-05 Ignis Innovation Inc. System and methods for extraction of threshold and mobility parameters in AMOLED displays
US9799246B2 (en) 2011-05-20 2017-10-24 Ignis Innovation Inc. System and methods for extraction of threshold and mobility parameters in AMOLED displays
US9275579B2 (en) 2004-12-15 2016-03-01 Ignis Innovation Inc. System and methods for extraction of threshold and mobility parameters in AMOLED displays
US9171500B2 (en) 2011-05-20 2015-10-27 Ignis Innovation Inc. System and methods for extraction of parasitic parameters in AMOLED displays
US20140111567A1 (en) 2005-04-12 2014-04-24 Ignis Innovation Inc. System and method for compensation of non-uniformities in light emitting device displays
US8599191B2 (en) 2011-05-20 2013-12-03 Ignis Innovation Inc. System and methods for extraction of threshold and mobility parameters in AMOLED displays
EP2688058A3 (en) 2004-12-15 2014-12-10 Ignis Innovation Inc. Method and system for programming, calibrating and driving a light emitting device display
US9280933B2 (en) 2004-12-15 2016-03-08 Ignis Innovation Inc. System and methods for extraction of threshold and mobility parameters in AMOLED displays
US10012678B2 (en) 2004-12-15 2018-07-03 Ignis Innovation Inc. Method and system for programming, calibrating and/or compensating, and driving an LED display
US10013907B2 (en) 2004-12-15 2018-07-03 Ignis Innovation Inc. Method and system for programming, calibrating and/or compensating, and driving an LED display
CA2495726A1 (en) 2005-01-28 2006-07-28 Ignis Innovation Inc. Locally referenced voltage programmed pixel for amoled displays
CA2496642A1 (en) 2005-02-10 2006-08-10 Ignis Innovation Inc. Fast settling time driving method for organic light-emitting diode (oled) displays based on current programming
TW200703195A (en) * 2005-03-22 2007-01-16 Koninkl Philips Electronics Nv A shift register circuit
JP5355080B2 (ja) 2005-06-08 2013-11-27 イグニス・イノベイション・インコーポレーテッド 発光デバイス・ディスプレイを駆動するための方法およびシステム
CA2518276A1 (en) 2005-09-13 2007-03-13 Ignis Innovation Inc. Compensation technique for luminance degradation in electro-luminance devices
US9153341B2 (en) * 2005-10-18 2015-10-06 Semiconductor Energy Laboratory Co., Ltd. Shift register, semiconductor device, display device, and electronic device
US9489891B2 (en) 2006-01-09 2016-11-08 Ignis Innovation Inc. Method and system for driving an active matrix display circuit
US9269322B2 (en) 2006-01-09 2016-02-23 Ignis Innovation Inc. Method and system for driving an active matrix display circuit
KR20090006057A (ko) 2006-01-09 2009-01-14 이그니스 이노베이션 인크. 능동 매트릭스 디스플레이 회로 구동 방법 및 시스템
WO2007118332A1 (en) 2006-04-19 2007-10-25 Ignis Innovation Inc. Stable driving scheme for active matrix displays
CA2556961A1 (en) 2006-08-15 2008-02-15 Ignis Innovation Inc. Oled compensation technique based on oled capacitance
JP5116359B2 (ja) 2007-05-17 2013-01-09 株式会社半導体エネルギー研究所 液晶表示装置
KR101526475B1 (ko) * 2007-06-29 2015-06-05 가부시키가이샤 한도오따이 에네루기 켄큐쇼 표시 장치 및 그 구동 방법
GB2452279A (en) * 2007-08-30 2009-03-04 Sharp Kk An LCD scan pulse shift register stage with a gate line driver and a separate logic output buffer
WO2009127065A1 (en) 2008-04-18 2009-10-22 Ignis Innovation Inc. System and driving method for light emitting device display
JP5141363B2 (ja) 2008-05-03 2013-02-13 ソニー株式会社 半導体デバイス、表示パネル及び電子機器
CA2637343A1 (en) 2008-07-29 2010-01-29 Ignis Innovation Inc. Improving the display source driver
US9370075B2 (en) 2008-12-09 2016-06-14 Ignis Innovation Inc. System and method for fast compensation programming of pixels in a display
CA2669367A1 (en) 2009-06-16 2010-12-16 Ignis Innovation Inc Compensation technique for color shift in displays
US10319307B2 (en) 2009-06-16 2019-06-11 Ignis Innovation Inc. Display system with compensation techniques and/or shared level resources
CA2688870A1 (en) 2009-11-30 2011-05-30 Ignis Innovation Inc. Methode and techniques for improving display uniformity
US9311859B2 (en) 2009-11-30 2016-04-12 Ignis Innovation Inc. Resetting cycle for aging compensation in AMOLED displays
US9384698B2 (en) 2009-11-30 2016-07-05 Ignis Innovation Inc. System and methods for aging compensation in AMOLED displays
US8283967B2 (en) 2009-11-12 2012-10-09 Ignis Innovation Inc. Stable current source for system integration to display substrate
US10996258B2 (en) 2009-11-30 2021-05-04 Ignis Innovation Inc. Defect detection and correction of pixel circuits for AMOLED displays
US8803417B2 (en) 2009-12-01 2014-08-12 Ignis Innovation Inc. High resolution pixel architecture
CA2687631A1 (en) * 2009-12-06 2011-06-06 Ignis Innovation Inc Low power driving scheme for display applications
US10163401B2 (en) 2010-02-04 2018-12-25 Ignis Innovation Inc. System and methods for extracting correlation curves for an organic light emitting device
US10176736B2 (en) 2010-02-04 2019-01-08 Ignis Innovation Inc. System and methods for extracting correlation curves for an organic light emitting device
US20140313111A1 (en) 2010-02-04 2014-10-23 Ignis Innovation Inc. System and methods for extracting correlation curves for an organic light emitting device
US10089921B2 (en) 2010-02-04 2018-10-02 Ignis Innovation Inc. System and methods for extracting correlation curves for an organic light emitting device
CA2692097A1 (en) 2010-02-04 2011-08-04 Ignis Innovation Inc. Extracting correlation curves for light emitting device
US9881532B2 (en) 2010-02-04 2018-01-30 Ignis Innovation Inc. System and method for extracting correlation curves for an organic light emitting device
CA2696778A1 (en) * 2010-03-17 2011-09-17 Ignis Innovation Inc. Lifetime, uniformity, parameter extraction methods
US8907991B2 (en) 2010-12-02 2014-12-09 Ignis Innovation Inc. System and methods for thermal compensation in AMOLED displays
WO2012156942A1 (en) 2011-05-17 2012-11-22 Ignis Innovation Inc. Systems and methods for display systems with dynamic power control
US20140368491A1 (en) 2013-03-08 2014-12-18 Ignis Innovation Inc. Pixel circuits for amoled displays
US9351368B2 (en) 2013-03-08 2016-05-24 Ignis Innovation Inc. Pixel circuits for AMOLED displays
US9606607B2 (en) 2011-05-17 2017-03-28 Ignis Innovation Inc. Systems and methods for display systems with dynamic power control
US9886899B2 (en) 2011-05-17 2018-02-06 Ignis Innovation Inc. Pixel Circuits for AMOLED displays
US9530349B2 (en) 2011-05-20 2016-12-27 Ignis Innovations Inc. Charged-based compensation and parameter extraction in AMOLED displays
US9466240B2 (en) 2011-05-26 2016-10-11 Ignis Innovation Inc. Adaptive feedback system for compensating for aging pixel areas with enhanced estimation speed
EP3293726B1 (en) 2011-05-27 2019-08-14 Ignis Innovation Inc. Systems and methods for aging compensation in amoled displays
EP2945147B1 (en) 2011-05-28 2018-08-01 Ignis Innovation Inc. Method for fast compensation programming of pixels in a display
US9070775B2 (en) 2011-08-03 2015-06-30 Ignis Innovations Inc. Thin film transistor
US8901579B2 (en) 2011-08-03 2014-12-02 Ignis Innovation Inc. Organic light emitting diode and method of manufacturing
US9385169B2 (en) 2011-11-29 2016-07-05 Ignis Innovation Inc. Multi-functional active matrix organic light-emitting diode display
US10089924B2 (en) 2011-11-29 2018-10-02 Ignis Innovation Inc. Structural and low-frequency non-uniformity compensation
US9324268B2 (en) 2013-03-15 2016-04-26 Ignis Innovation Inc. Amoled displays with multiple readout circuits
US8937632B2 (en) 2012-02-03 2015-01-20 Ignis Innovation Inc. Driving system for active-matrix displays
US9747834B2 (en) 2012-05-11 2017-08-29 Ignis Innovation Inc. Pixel circuits including feedback capacitors and reset capacitors, and display systems therefore
US8922544B2 (en) 2012-05-23 2014-12-30 Ignis Innovation Inc. Display systems with compensation for line propagation delay
CN102857207B (zh) * 2012-07-25 2015-02-18 京东方科技集团股份有限公司 移位寄存器单元及其驱动方法、栅极驱动装置和显示装置
US9336717B2 (en) 2012-12-11 2016-05-10 Ignis Innovation Inc. Pixel circuits for AMOLED displays
US9786223B2 (en) 2012-12-11 2017-10-10 Ignis Innovation Inc. Pixel circuits for AMOLED displays
US9830857B2 (en) 2013-01-14 2017-11-28 Ignis Innovation Inc. Cleaning common unwanted signals from pixel measurements in emissive displays
US9171504B2 (en) 2013-01-14 2015-10-27 Ignis Innovation Inc. Driving scheme for emissive displays providing compensation for driving transistor variations
CA2894717A1 (en) 2015-06-19 2016-12-19 Ignis Innovation Inc. Optoelectronic device characterization in array with shared sense line
US9721505B2 (en) 2013-03-08 2017-08-01 Ignis Innovation Inc. Pixel circuits for AMOLED displays
EP3043338A1 (en) 2013-03-14 2016-07-13 Ignis Innovation Inc. Re-interpolation with edge detection for extracting an aging pattern for amoled displays
US9952698B2 (en) 2013-03-15 2018-04-24 Ignis Innovation Inc. Dynamic adjustment of touch resolutions on an AMOLED display
CN105144361B (zh) 2013-04-22 2019-09-27 伊格尼斯创新公司 用于oled显示面板的检测系统
DE112014003719T5 (de) 2013-08-12 2016-05-19 Ignis Innovation Inc. Kompensationsgenauigkeit
US9741282B2 (en) 2013-12-06 2017-08-22 Ignis Innovation Inc. OLED display system and method
US9761170B2 (en) 2013-12-06 2017-09-12 Ignis Innovation Inc. Correction for localized phenomena in an image array
US9502653B2 (en) 2013-12-25 2016-11-22 Ignis Innovation Inc. Electrode contacts
US10997901B2 (en) 2014-02-28 2021-05-04 Ignis Innovation Inc. Display system
US10176752B2 (en) 2014-03-24 2019-01-08 Ignis Innovation Inc. Integrated gate driver
DE102015206281A1 (de) 2014-04-08 2015-10-08 Ignis Innovation Inc. Anzeigesystem mit gemeinsam genutzten Niveauressourcen für tragbare Vorrichtungen
CA2872563A1 (en) 2014-11-28 2016-05-28 Ignis Innovation Inc. High pixel density array architecture
CA2873476A1 (en) 2014-12-08 2016-06-08 Ignis Innovation Inc. Smart-pixel display architecture
CA2879462A1 (en) 2015-01-23 2016-07-23 Ignis Innovation Inc. Compensation for color variation in emissive devices
CA2886862A1 (en) 2015-04-01 2016-10-01 Ignis Innovation Inc. Adjusting display brightness for avoiding overheating and/or accelerated aging
CA2889870A1 (en) 2015-05-04 2016-11-04 Ignis Innovation Inc. Optical feedback system
CA2892714A1 (en) 2015-05-27 2016-11-27 Ignis Innovation Inc Memory bandwidth reduction in compensation system
US10657895B2 (en) 2015-07-24 2020-05-19 Ignis Innovation Inc. Pixels and reference circuits and timing techniques
US10373554B2 (en) 2015-07-24 2019-08-06 Ignis Innovation Inc. Pixels and reference circuits and timing techniques
CA2898282A1 (en) 2015-07-24 2017-01-24 Ignis Innovation Inc. Hybrid calibration of current sources for current biased voltage progra mmed (cbvp) displays
CA2900170A1 (en) 2015-08-07 2017-02-07 Gholamreza Chaji Calibration of pixel based on improved reference values
CA2908285A1 (en) 2015-10-14 2017-04-14 Ignis Innovation Inc. Driver with multiple color pixel structure
CA2909813A1 (en) 2015-10-26 2017-04-26 Ignis Innovation Inc High ppi pattern orientation
DE102017222059A1 (de) 2016-12-06 2018-06-07 Ignis Innovation Inc. Pixelschaltungen zur Minderung von Hysterese
US10714018B2 (en) 2017-05-17 2020-07-14 Ignis Innovation Inc. System and method for loading image correction data for displays
US11025899B2 (en) 2017-08-11 2021-06-01 Ignis Innovation Inc. Optical correction systems and methods for correcting non-uniformity of emissive display devices
US10971078B2 (en) 2018-02-12 2021-04-06 Ignis Innovation Inc. Pixel measurement through data line

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2587546B2 (ja) * 1991-03-22 1997-03-05 株式会社ジーティシー 走査回路
JP2799095B2 (ja) * 1991-12-02 1998-09-17 株式会社東芝 液晶表示器駆動装置
JPH06337655A (ja) * 1993-05-31 1994-12-06 Sanyo Electric Co Ltd 液晶駆動回路
US5701136A (en) * 1995-03-06 1997-12-23 Thomson Consumer Electronics S.A. Liquid crystal display driver with threshold voltage drift compensation

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102419961A (zh) * 2001-04-27 2012-04-18 株式会社半导体能源研究所 半导体器件
US8659532B2 (en) 2001-04-27 2014-02-25 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device
CN102419961B (zh) * 2001-04-27 2014-12-03 株式会社半导体能源研究所 半导体器件
US9136385B2 (en) 2001-04-27 2015-09-15 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device
CN100362557C (zh) * 2003-07-09 2008-01-16 夏普株式会社 移位寄存器及采用它的显示装置
CN100437726C (zh) * 2003-11-19 2008-11-26 Nxp股份有限公司 驱动显示装置的电路装置
CN101540139B (zh) * 2008-03-18 2012-07-18 索尼株式会社 半导体设备、显示面板和电子器件
CN103871372A (zh) * 2012-12-18 2014-06-18 乐金显示有限公司 用于驱动发光二极管阵列的装置及使用其的液晶显示装置
CN103871372B (zh) * 2012-12-18 2016-03-30 乐金显示有限公司 用于驱动发光二极管阵列的装置及使用其的液晶显示装置

Also Published As

Publication number Publication date
TW343325B (en) 1998-10-21
KR970017152A (ko) 1997-04-30
JPH0980382A (ja) 1997-03-28
CN1078712C (zh) 2002-01-30
JP3272209B2 (ja) 2002-04-08
US5870071A (en) 1999-02-09
KR0185026B1 (ko) 1999-04-15

Similar Documents

Publication Publication Date Title
CN1078712C (zh) 液晶显示器驱动回路
US10269290B2 (en) Shift register units and driving methods thereof, gate driving circuits and display devices with transistors having extended lifetime
TWI263970B (en) Display driving device and display device comprises of the display driving device
US6621481B1 (en) Shift register, display device, image sensing element driving apparatus, and image sensing apparatus
CN102013244B (zh) 液晶显示器驱动电路及相关驱动方法
US10957270B1 (en) GOA circuit and liquid crystal display device having the same
US20210335175A1 (en) Shift register unit and driving method thereof, gate driving circuit and driving method thereof, and display device
US20170309243A1 (en) Shift register unit and driving method thereof, gate driving apparatus and display apparatus
US20040189583A1 (en) Liquid crystal driving device
US20060279513A1 (en) Apparatus and method for driving gate lines in a flat panel display (FPD)
CN110062944A (zh) 像素电路及其驱动方法、显示装置
US11120746B2 (en) Shift register unit, gate driving circuit, display device and driving method
KR101647698B1 (ko) 쉬프트 레지스터 및 그 구동방법
CN1540402A (zh) 液晶显示设备及驱动lcd板的方法
US20070290969A1 (en) Output buffer for gray-scale voltage source
US20040150599A1 (en) Driver circuit, electro-optical device, and drive method
JPH06274133A (ja) 表示装置の駆動回路及び表示装置
US10872546B2 (en) Shift register unit and method for driving the same, gate driving circuit and display apparatus
EP1416467A1 (en) Display drive method, display element, and display
CN1573896A (zh) 液晶显示器的驱动装置
TWI238986B (en) Generation method and generation circuit of control signal, driving circuit of data line, device substrate, optoelectronic apparatus and electronic machine
KR100298966B1 (ko) 평면표시장치
KR20020056093A (ko) 액정표시장치의 게이트 구동회로
JP2020509423A (ja) チャージシェアを有する走査駆動回路及び表示パネル
JP7371017B2 (ja) シフトレジスタユニット、ゲート駆動回路及び駆動方法

Legal Events

Date Code Title Description
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C53 Correction of patent of invention or patent application
CB02 Change of applicant information

Applicant after: Alps Electric Co., Ltd.

Applicant after: LG Philip Co., Ltd.

Applicant before: Frandick Co., Ltd.

COR Change of bibliographic data

Free format text: CORRECT: APPLICANT; FROM: FLONTIKER CO., LTD. TO: ALPS ELECTRIC CO., LTD.; LG PHILIPPE CO., LTD.

C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: ALPS ELECTRIC CO., LTD.; LG DISPLAY CO., LTD.

Free format text: FORMER NAME OR ADDRESS: ALPS ELECTRIC CO., LTD.; LG PHILIPPE CO., LTD.

CP03 Change of name, title or address

Address after: Tokyo, Japan

Co-patentee after: LG Display Co., Ltd.

Patentee after: Alps Electric Co., Ltd.

Address before: Tokyo, Japan

Co-patentee before: LG Philip Co., Ltd.

Patentee before: Alps Electric Co., Ltd.

CX01 Expiry of patent term

Granted publication date: 20020130

EXPY Termination of patent right or utility model