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    • 1. 发明申请
    • APPARATUS AND METHOD FOR USE OF LARGE LIQUID CRYSTAL DISPLAY WITH SMALL DRIVER
    • 使用小型液晶显示器与小型驱动器的装置和方法
    • WO2006109276A2
    • 2006-10-19
    • PCT/IB2006051179
    • 2006-04-15
    • AGAMATRIX INCHARDING IANWEI BAOGUOVU SONNYFOREST MARTINDIAMOND STEVENTSAI GARY
    • HARDING IANWEI BAOGUOVU SONNYFOREST MARTINDIAMOND STEVENTSAI GARY
    • G09G3/3644G09G3/3681G09G3/3692G09G2310/0297
    • An apparatus has (1) a liquid crystal display driver having N common drive lines and M segment drive lines; (2) a liquid crystal display having Q common drive leads and R segment drive leads, and (3) P multiplexers. N, M. P, Q and R are each integers greater than zero; Q is greater than N, or R is greater than M, or Q is greater than N and R is greater than M; the multiplexers contain a plurality of switches, wherein the number of switches is equal to (Q minus N) plus (R minus M) and each switch defines a normally-open contact, a normally closed contact and a common contact; the N common drive lines connect directly or through one or more multiplexers with the Q common drive leads, and the M segment drive lines connect directly or through one or more multiplexers with the R segment drive leads. The apparatus may also include a cancel circuit connected to the switches preferably connected to an unused segment drive line to provide a cancel signal.
    • 一种装置具有(1)具有N个公共驱动线和M个段驱动线的液晶显示驱动器; (2)具有Q个公共驱动引线和R段驱动引线的液晶显示器,以及(3)P多路复用器。 N,M.P,Q和R各自为大于零的整数; Q大于N,或R大于M,或Q大于N,R大于M; 多路复用器包含多个开关,其中开关数等于(Q减N)加(R减M),并且每个开关限定常开触点,常闭触点和公共触点; N个公共驱动线路直接连接或通过一个或多个多路复用器与Q公共驱动引线连接,并且M段驱动线路直接连接或通过一个或多个多路复用器与R段驱动引线连接。 该装置还可以包括连接到开关的取消电路,优选地连接到未使用的段驱动线以提供取消信号。
    • 2. 发明申请
    • 画像信号の補正方法、補正回路、電気光学装置および電子機器
    • 图像信号校正方法,校正电路,电子设备和电子设备
    • WO2005073953A1
    • 2005-08-11
    • PCT/JP2005/001741
    • 2005-02-01
    • セイコーエプソン株式会社
    • 青木 透
    • G09G3/36
    • G09G3/3681G09G2320/0209G09G2352/00G09G2360/16
    • 複数のデータ線をブロック化して、まとめて画像信号をサンプリングする相展開駆動をする場合のブロックゴーストを低減する。 相展開駆動方式において、着目ブロックを選択したときに直前ブロックから変化した階調レベルの平均値と、直前ブロックを選択したときに着目ブロックよりも2つ前のブロックから変化した階調レベルの平均値とを加算して補正データDbを求める。この際、前者の平均値を後者の平均値よりも大きく重み付けする。そして、着目ブロックに属する各画素の映像データVd1d~Vd6dに、それぞれ補正データDbを加算して、補正済の映像データVd1e~Vd6eとするとともに、アナログ変換、極性反転を施して、電気光学パネルの画像信号線に供給する。
    • 在多个数据线被阻塞的相位膨胀驱动期间减少块重影以批量采样图像信号。 在相位膨胀驱动系统中,通过将所选择的感兴趣区块之前的感兴趣区块之前的块中已经改变的灰度级的平均值与具有所关注的块的灰度级的平均值相加来获得校正数据(Db) 当选择紧接在前的块时,从紧接在感兴趣块之前的块开始改变。 此时,前者的平均值比后一个加权重。 然后,将校正数据(Db)添加到属于感兴趣块的像素的视频数据(Vd1d-Vd6d)中的每一个,以产生经校正的视频数据(Vd1e-Vd6e),然后对其进行模拟转换 并进行极性反转,然后提供给电光板的图像信号线。
    • 3. 发明申请
    • LIQUID-CRYSTAL DISPLAY AND METHOD OF DRIVING LIQUID-CRYSTAL DISPLAY
    • 液晶显示器和驱动液晶显示器的方法
    • WO00055837A1
    • 2000-09-21
    • PCT/JP2000/001564
    • 2000-03-15
    • G09G3/36G02F1/133
    • G09G3/3622G09G3/3625G09G3/3681G09G2310/0205
    • A liquid-crystal display device (1) comprises a liquid-crystal display panel (2) with a plurality of linear scan electrodes and a plurality of linear signal electrodes, a scan driver (6) for supplying scanning signals to the scan electrodes, a signal driver (7) for supplying data signals to the signal electrodes, and a signal selector (8). The signal selector (8) controls to selectively render the individual scan electrodes active or inactive. The scan driver (6), capable of generating h kinds of scanning signals (h is an integer greater than 1), supplies scanning signals simultaneously to a group of h active scan electrodes during a particular period, and supplies scanning signals simultaneously to another group of h active scan electrodes during another period.
    • 液晶显示装置(1)包括具有多个线性扫描电极和多个线性信号电极的液晶显示面板(2),用于向扫描电极提供扫描信号的扫描驱动器(6) 用于向信号电极提供数据信号的信号驱动器(7)和信号选择器(8)。 信号选择器(8)控制选择性地使单个扫描电极呈现活动或不活动。 能够产生h种扫描信号(h为大于1的整数)的扫描驱动器(6)在特定时段内向一组h有源扫描电极同时提供扫描信号,并将扫描信号同时提供给另一组 的h活性扫描电极。
    • 4. 发明申请
    • CUMULATIVE DRIVE SCHEME AND METHOD FOR A LIQUID CRYSTAL DISPLAY
    • 用于液晶显示的累积驱动方案和方法
    • WO98055987A2
    • 1998-12-10
    • PCT/US1998/010207
    • 1998-05-19
    • G02F1/133G09G3/20G09G3/36G09G
    • G09G3/3629G09G3/3681G09G3/3692G09G2300/0486G09G2310/0227G09G2310/04
    • A liquid crystal display including driver circuitry which applies a series of voltage pulses at a frequency of approximately 60 Hz to cumulatively change a reflectance state of a pixel in an array of pixels at a near video updating rate. The display includes a near video rate updating portion, while the remainder of the display has a slower updating frequency or rate. The display is comprised of a bistable cholesteric liquid crystal material sandwiched between an electrode array having a plurality of row and column electrodes. In one operating embodiment, the driver circuitry generates a unipolar row and column waveforms, the row waveforms being applied to the row electrodes and the column waveforms being applied to the column electrodes of the near video rate updating portion. Approximately every 16 milliseconds, a pixel in the near video rate updating portion receives a control voltage pulse corresponding to the difference between the row and column waveforms. Application of six to seven control voltage pulses is sufficient to change the reflectance state of the pixel. In a second operating embodiment, the driver circuitry generates bipolar row and column waveforms. In alternate embodiments, dual column driver circuitry is provided and interlacing schemes are used to increase the number of rows in the near video rate updating portion of the display.
    • 一种液晶显示器,包括以大约60Hz的频率施加一系列电压脉冲的驱动电路,以接近视频更新率累积地改变像素阵列中的像素的反射率状态。 显示器包括近视频率更新部分,而显示器的其余部分具有较慢的更新频率或速率。 显示器由夹在具有多个行和列电极的电极阵列之间的双稳态胆甾型液晶材料构成。 在一个操作实施例中,驱动器电路产生单极行和列波形,行波形被施加到行电极,列波形被施加到近视频速率更新部分的列电极。 大约每16毫秒,近视频率更新部分中的像素接收对应于行和列波形之间的差的控制电压脉冲。 六到七个控制电压脉冲的应用足以改变像素的反射率状态。 在第二操作实施例中,驱动器电路产生双极性行和列波形。 在替代实施例中,提供双列驱动器电路,并且使用交错方案来增加显示器的近视频速率更新部分中的行数。
    • 5. 发明申请
    • LIQUID CRYSTAL DISPLAY, ITS DRIVING METHOD, AND DRIVING CIRCUIT AND POWER SUPPLY USED THEREFOR
    • 液晶显示器及其驱动方法及驱动电路及其使用的电源
    • WO1996036902A1
    • 1996-11-21
    • PCT/JP1995001835
    • 1995-09-14
    • SEIKO EPSON CORPORATIONNOMURA, HiroakiINOUE, Akira
    • SEIKO EPSON CORPORATION
    • G02F01/133
    • G09G3/3629G09G3/3614G09G3/3681G09G3/3692G09G3/3696G09G2300/0486G09G2310/06G09G2310/061G09G2330/02
    • A liquid crystal display in which the voltage difference between scanning signals having at least a resetting period, a selecting period, and a non-selecting period in one frame and data signals is applied across a chiral nematic liquid crytal having at least two stable states. A total of eight voltage levels, i.e., first-group levels (V1, V2, V3 and V4) on the low voltage side and second-group levels (V5, V6, V7 and V8) on the high voltage side, are provided. At every period equal to an integral multiple mH (m is an integer of 2 or larger, and mH NOTEQUAL 1 frame period) of a unit time (1H) corresponding to the selecting period T2 of the scanning signals Yi, the voltage levels of the scanning signals Yi and data signals Xj are alternately changed between the first and second groups. When the data signal (Xj) is at one of the first-group voltage levels, the voltage level during the resetting period (T1) of the scanning signal (Xj) is selected from the second group and, when the data signal (Xj) is at one of the second-group voltage levels, the voltage level during the resetting period (T1) of the scanning signal (Yi) is selected from the first group. When the data signal (Xj) is at one of the first-group voltage levels, the voltage levels during the selecting period (T3) and non-selecting period (T4) of the scanning signal (Yi) are selected from the same first-group and, when the data signal (Xj) is at one of the second-group voltage levels, the voltage levels during the selecting period (T3) and non-selecting period (T4) of the scanning signal (Yi) are selected from the same second-group. As a result, the polarity of the voltage applied across the liquid crystal is inverted at intervals of one mH.
    • 一种液晶显示器,其中具有至少一个复位周期,选择周期和一帧中的非选择周期的扫描信号与数据信号之间的电压差跨越具有至少两个稳定状态的手征向列液晶。 提供了在高压侧的低电压侧和第二组电平(V5,V6,V7和V8)上的总共八个电压电平,即第一组电平(V1,V2,V3和V4)。 在与扫描信号Yi的选择周期T2相对应的单位时间(1H)的整数倍mH(m为2以上的整数,mH NOTEQUAL 1帧周期)的每个周期,等于 扫描信号Yi和数据信号Xj在第一组和第二组之间交替变化。 当数据信号(Xj)处于第一组电压电平之一时,从第二组中选择扫描信号(Xj)的复位周期(T1)期间的电压电平,并且当数据信号(Xj) 处于第二组电压电平之一时,从第一组中选择扫描信号(Yi)的复位周期(T1)期间的电压电平。 当数据信号(Xj)处于第一组电压电平之一时,扫描信号(Yi)的选择周期(T3)和非选择周期(T4)期间的电压电平选自相同的第一组电压, 并且当数据信号(Xj)处于第二组电压电平之一时,扫描信号(Yi)的选择周期(T3)和非选择周期(T4)期间的电压电平选自 相同的第二组。 结果,施加在液晶两端的电压的极性以1mH的间隔反转。
    • 6. 发明申请
    • METHOD AND CIRCUIT FOR DRIVING LIQUID CRYSTAL DEVICE, ETC., AND DISPLAY DEVICE
    • 用于驱动液晶装置的方法和电路,以及显示装置
    • WO1993023844A1
    • 1993-11-25
    • PCT/JP1993000604
    • 1993-05-10
    • SEIKO EPSON CORPORATIONITO, AkihikoIINO, Shoichi
    • SEIKO EPSON CORPORATION
    • G09G03/36
    • G09G3/3622G09G3/2011G09G3/2014G09G3/2018G09G3/3611G09G3/3625G09G3/3681G09G2310/0205
    • In a method of driving a liquid crystal device, etc., and a display device, particularly those for gradation dispaly, the present invention aims at providing a driving method of a liquid crystal device, etc., and a display device capable of satisfactorily effecting gradation display without causing insufficient contrast, flickers, cross-talk, etc. When effecting multiplex driving of a liquid crystal device, etc., having a liquid crystal layer sandwiched between a substrate having scanning electrodes X1, X2,... and a substrate having signal electrodes X1, Y2,..., the present invention simultaneously selects sequentially a plurality of scanning electrodes, divides the selection period into a plurality of periods, and applies a weighted voltage, which is weighted in accordance with desired display data, in each of the divided selection periods so as to effect gradation display.
    • 在液晶装置等的驱动方法以及显示装置中,特别是用于灰度显示的显示装置,本发明的目的在于提供一种液晶装置等的驱动方法以及能够令人满意地实现的显示装置 在不引起对比度不足,闪烁,串扰等的情况下进行灰度显示。当对具有夹在具有扫描电极X1,X2,...的基板和基板之间的液晶层进行多路驱动时, 具有信号电极X1,Y2,...,本发明同时顺序地选择多个扫描电极,将选择周期分成多个周期,并且将根据期望的显示数据加权的加权电压施加在 每个分割选择周期以便实现灰度显示。