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公开(公告)号：US4651148A
公开(公告)日：1987-03-17
申请号：US647752
申请日：1984-09-06
申请人： Makoto Takeda , Kunihiko Yamamoto , Nobuaki Matsuhashi , Naofumi Kimura , Hiroshi Hamada , Hiroshi Take
发明人： Makoto Takeda , Kunihiko Yamamoto , Nobuaki Matsuhashi , Naofumi Kimura , Hiroshi Hamada , Hiroshi Take
IPC分类号： G02F1/1335 , G09G3/36
CPC分类号： G09G3/3607 , G02F1/133514 , G09G3/3648 , G09G2300/0452 , G09G2310/0251
摘要： A matrix liquid crystal display device provided with switching transistors, made of amorphous silicon thin-film for example, which are connected to each display picture element. The switching transistors are scanned with a scan pulse having width H which is set at a value greater than that is expressed by T/N, where H denotes the scan pulse width applied to row electrodes connected to each gate of the switching transistor, T denotes the total scan time and N the number of the scan lines. Concretely, the timewise width of the scan pulses is expanded or the number of applicable scan pulses is increased. The preferred embodiments relate to such a liquid crystal display driving system that can effectively minimize the decline of the voltage and the display characteristics caused by insufficient charge against the display picture element electrodes via the switching transistors. In particular, the driving method embodied by the present invention is extremely useful for driving a large-capacity X-Y matrix liquid crystal display device.
摘要翻译： 一种矩阵液晶显示装置，其设置有例如与各显示图像元素连接的由非晶硅薄膜构成的开关晶体管。 用宽度为H的扫描脉冲扫描开关晶体管，该扫描脉冲设定为大于由T / N表示的值，其中H表示施加到连接到开关晶体管的每个栅极的行电极的扫描脉冲宽度，T表示 总扫描时间和N个扫描线数。 具体地，扫描脉冲的时间宽度被扩大或适用的扫描脉冲的数量增加。 优选实施例涉及这样的液晶显示驱动系统，其可以有效地最小化通过开关晶体管对显示图像元素电极的电荷不足引起的电压下降和显示特性的降低。 特别地，本发明具体实施的驱动方法对于驱动大容量X-Y矩阵型液晶显示装置非常有用。
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2.发明授权Circuit for driving a matrix display device with a plurality of isolated driving blocks 失效用于驱动具有多个隔离驱动块的矩阵显示装置的电路
公开(公告)号：US4799057A
公开(公告)日：1989-01-17
申请号：US756267
申请日：1985-07-18
CPC分类号： G09G3/3688 , G09G2330/021 , G09G3/2011
摘要： A driving circuit for a matrix liquid crystal display device with switching transistors added to respective picture elements is divided into a plurality of blocks each of which selectively drives the switching transistors. The driving circuit is equipped with control means for actuating the blocks one by one in turn while electrically isolating the unactuated blocks from the circuit.
摘要翻译： 具有添加到各个像素的开关晶体管的矩阵液晶显示装置的驱动电路被分成多个块，每个块选择性地驱动开关晶体管。 驱动电路配备有用于一个接一个地驱动该块的控制装置，同时将未致动块与电路电隔离。
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公开(公告)号：US4825203A
公开(公告)日：1989-04-25
申请号：US751884
申请日：1985-07-05
IPC分类号： G09G3/36
CPC分类号： G09G3/3607
摘要： A color liquid crystal display device which comprises picture element electrodes arranged in a matrix that is made up of the intersecting points of row electrodes and column electrodes, a 1st circuit board with switching elements that are connected to these picture element electrodes, a 2nd circuit board with opposing electrodes, a liquid crystal layer that is inserted in between the said 1st and 2nd circuit boards, a color filter with a specific pattern in between the said 1st and 2nd circuit boards, and a column electrode drive circuit that applies voltage corresponding to color arrangement of the color filter and the density of the display to the said column electrode. The column electrode drive circuit includes a sampling circuit which samples the momentary voltage corresponding to the display picture element out of the display signals that are input.
摘要翻译： 一种彩色液晶显示装置，包括由行电极和列电极的交叉点组成的矩阵排列的像素电极，具有连接到这些像素电极的开关元件的第一电路板，第二电路板 相对的电极，插入在所述第一和第二电路板之间的液晶层，在所述第一和第二电路板之间具有特定图案的滤色器以及施加与颜色相对应的电压的列电极驱动电路 滤色器的布置和显示器的密度到所述列电极。 列电极驱动电路包括采样电路，其从输入的显示信号中对与显示图像元素相对应的瞬时电压进行采样。
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公开(公告)号：US4845473A
公开(公告)日：1989-07-04
申请号：US161431
申请日：1988-04-24
CPC分类号： G09G3/3677 , G09G3/3648 , G09G3/3666 , G09G2320/0247 , G09G2340/0435 , G09G3/3614
摘要： A method of driving a matrix-type liquid crystal display panel comprising the step of dividing each scan pulse delivered to a plurality of row electrodes connected to the liquid crystal panel into plural scan periods; supplying video signal data via real-time operation during the initial divided period during alernate scan periods; generating new and proper signal source during the rest of the scan periods; and supplying data from the new signal source so that data can be written into liquid crystal layers. When dividing the width of the scan pulse into n pulses, the frame frequency can be raised n-times, thus making it possible to achieve a satisfactory liquid crystal picture display without the slightest flicker.
摘要翻译： 一种矩阵型液晶显示面板的驱动方法，其特征在于，包括将与液晶面板连接的多个行电极的各扫描脉冲分割为多个扫描周期的步骤; 在Alernate扫描周期期间的初始分割周期内通过实时操作提供视频信号数据; 在扫描周期的其余时间内产生新的和正确的信号源; 并从新的信号源提供数据，以便将数据写入液晶层。 当将扫描脉冲的宽度分割为n个脉冲时，可以将帧频率提高n倍，从而可以实现令人满意的液晶图像显示而没有轻微的闪烁。
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5.发明授权Drive circuit for use in single-sided or opposite-sided type liquid crystal display unit 失效驱动电路用于单面或双面型液晶显示单元
公开(公告)号：US4917468A
公开(公告)日：1990-04-17
申请号：US939720
申请日：1986-12-09
申请人： Nobuaki Matsuhashi , Makoto Takeda , Hiroshi Take
发明人： Nobuaki Matsuhashi , Makoto Takeda , Hiroshi Take
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G3/3677 , G09G2310/0251
摘要： A drive circuit for use in a matrix type liquid crystal display unit having a liquid crytal display panel with switching elements for addressing. The switching elements are provided at picture elements disposed in a matrix type display pattern. The drive circuit includes a row electrode driver coupled not only with terminals of row electrodes provided at one side of the liquid crystal display panel but also to the terminals of the row electrodes provided at opposite sides of the liquid crytal display panel and a changeover terminal for enabling the row electrode driver to drive the terminals of the row electrodes provided at the one side of the liquid crystal display panel or to drive the terminals of the row electrodes provided at the opposite sides of the liquid crystal display panel.
摘要翻译： 一种驱动电路，用于具有液晶显示面板的矩阵式液晶显示单元，所述液晶显示面板具有用于寻址的开关元件。 开关元件设置在以矩阵型显示图案设置的图像元素处。 驱动电路包括：行电极驱动器，不仅与液晶显示面板的一侧配置的行电极的端子耦合，而且还配置在液晶显示面板的相对侧的行电极的端子和用于 使行电极驱动器驱动设置在液晶显示面板一侧的行电极的端子，或者驱动设置在液晶显示面板的相对侧的行电极的端子。
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6.发明授权Drive system for an active matrix liquid crystal display panel having divided row electrodes 失效具有划分行电极的有源矩阵液晶显示面板的驱动系统
公开(公告)号：US4830466A
公开(公告)日：1989-05-16
申请号：US839196
申请日：1986-03-13
申请人： Nobuaki Matsuhashi , Makoto Takeda , Hiroshi Take
发明人： Nobuaki Matsuhashi , Makoto Takeda , Hiroshi Take
CPC分类号： G09G3/3666
摘要： In an active matrix liquid crystal display panel, row electrodes are divided into two portions at the approximate center of the display panel, the left row electrode portion belonging to an odd number row electrode group, and the right row electrode portion to an even number row electrode group. One horizontal scanning is conducted for each pair of left and right row electrodes to write data signals in the display picture elements. The width of a pulse applied to each row electrode corresponds to one horizontal scanning period. There is a phase difference of about 1/2 the horizontal scanning period between the pulses for an odd number row electrode and an even number row electrode, thus minimizing the difference in a write period among the display picture elements in the lateral direction of the display panel.
摘要翻译： 在有源矩阵液晶显示面板中，行电极在显示面板的大致中央分为两部分，左行电极部分属于奇数行电极组，右排电极部分分为偶数行 电极组。 对于每对左右行电极进行一次水平扫描，以将数据信号写入显示图像元素。 施加到每个行电极的脉冲的宽度对应于一个水平扫描周期。 在奇数行电极和偶数行电极的脉冲之间存在大约1/2水平扫描周期的相位差，从而最小化显示器的横向方向上的显示图像元素之间的写入周期的差异 面板。
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7.发明授权Liquid crystal matrix display device with polarity inversion of signal and counter electrode voltages to maintain uniform display contrast 失效具有极性反转信号和对电极电压的液晶矩阵显示装置，保持均匀的显示对比度
公开(公告)号：US4906984A
公开(公告)日：1990-03-06
申请号：US277398
申请日：1988-11-28
申请人： Makoto Takeda , Nobuaki Matsuhashi , Hiroshi Take
发明人： Makoto Takeda , Nobuaki Matsuhashi , Hiroshi Take
CPC分类号： G09G3/3655 , G09G3/3614 , G09G3/3648
摘要： A liquid crystal display device includes a plurality of scanning electrodes, a plurality of signal electrodes, and a plurality of picture element electrodes connected to intersections of scanning and signal electrodes via a plurality of switching transistors. A plurality of counter electrodes are arranged opposite to the picture element electrodes. The polarity of display signals applied to the signal electrodes is inverted for a period equal to an integer multiple of a pulse width of a scanning pulse applied to the scanning electrodes. Signals of alternating polarity are applied to the counter electrodes in synchronism with the polarity inversion of the display signals. In this way, non-uniform display contrast along the signal electrode direction of the display screen is avoided by eliminating the stray capacitance timing differences according to the position of picture element electrodes along the signal electrode direction of the display screen.
摘要翻译： 液晶显示装置包括多个扫描电极，多个信号电极以及通过多个开关晶体管连接到扫描信号电极和信号电极的交点的多个像素电极。 多个对置电极与像素电极相对配置。 施加到信号电极的显示信号的极性反转等于施加到扫描电极的扫描脉冲的脉冲宽度的整数倍的周期。 与显示信号的极性反转同步地将交替极性的信号施加到对置电极。 以这种方式，通过根据显示屏幕的信号电极方向上的像素电极的位置消除杂散电容定时差来避免沿显示屏幕的信号电极方向的不均匀的显示对比度。
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公开(公告)号：US4706173A
公开(公告)日：1987-11-10
申请号：US831258
申请日：1986-02-20
CPC分类号： G02B6/0031 , F21V7/00 , F21V7/09 , G02B6/0038 , G02B6/0055
摘要： A lighting apparatus including a tubular light source and a member having a plurality of reflective surfaces which are angularly set such that light from the light source is reflected in a predetermined direction of a viewing angle by each of the reflective surfaces. A ratio of an apparent width of each of the reflective surfaces to an apparent interval of adjacent ones of the reflective surfaces, when viewed from the predetermined direction of the viewing angle, is so set as to be a function of a distance between the light source and each of the reflective surfaces.
摘要翻译： 一种照明装置，包括管状光源和具有多个反射表面的部件，所述多个反射表面被成角度地设置成使得来自光源的光通过每个反射表面沿预定的视角方向反射。 当从视角的预定方向观察时，每个反射表面的视在宽度与相邻的反射表面的表观间隔的比率被设定为光源之间的距离的函数 和每个反射表面。
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公开(公告)号：US4694349A
公开(公告)日：1987-09-15
申请号：US739849
申请日：1985-05-31
CPC分类号： G09G3/3688 , H04N3/127 , G09G3/2011
摘要： A driver circuit for a matrix-type liquid crystal display panel capable of displaying pictures having the same number of scan lines as a conventional television set without using a frame memory, by applying the mean value of two video signals matching the 1-H advance and 1-H behind odd (even) numbered scan lines, where the video signal in the odd (even) field correctly matches the even (odd) numbered scan lines.
摘要翻译： 一种用于矩阵型液晶显示面板的驱动器电路，其能够通过应用与1-H进位匹配的两个视频信号的平均值来显示具有与常规电视机相同数目的扫描线的图像而不使用帧存储器， 奇数（偶数）编号扫描线之后的1-H，奇数（偶数）场中的视频信号正确匹配偶数（奇数）扫描线。
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公开(公告)号：US4651149A
公开(公告)日：1987-03-17
申请号：US648285
申请日：1984-09-07
申请人： Makoto Takeda , Kunihiko Yamamoto , Hiroshi Take
发明人： Makoto Takeda , Kunihiko Yamamoto , Hiroshi Take
CPC分类号： G09G3/3688 , G09G2310/0248 , G09G2330/021 , G09G3/2011
摘要： An active matrix liquid crystal display is provided with one switching transistor connected to each display element. A separate drive circuit is connected to each column of the matrix, each such drive circuit incorporating a buffer circuit which is constructed of an output transistor and three separate switching elements. The buffer circuit transfers a sample of a data input signals to the respective column while requiring reduced power over conventional drivers.
摘要翻译： 有源矩阵液晶显示器设置有连接到每个显示元件的一个开关晶体管。 单独的驱动电路连接到矩阵的每列，每个这样的驱动电路结合有由输出晶体管和三个单独的开关元件构成的缓冲电路。 缓冲电路将数据输入信号的样本传送到相应的列，同时需要比常规驱动器更低的功率。
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