公开(公告)号：US07570252B2

公开(公告)日：2009-08-04

申请号：US10820095

申请日：2004-04-08

申请人： Koji Fujiwara ,  Naoto Inoue ,  Yasunori Ake

发明人： Koji Fujiwara ,  Naoto Inoue ,  Yasunori Ake

IPC分类号： G09G5/00

CPC分类号： G06F3/0433 ,  G06F3/03545

摘要： When a display panel is in contact with the pen tip of an input pen, an infrared receiver and at least two ultrasonic receivers, provided on the display panel, receive respectively an infrared signal and an ultrasonic signal simultaneously transmitted from an infrared transmitter and an ultrasonic transmitter, and computes the contact position of the pen tip on the display panel from a result, containing a time delay, of the ultrasonic receiver receiving the ultrasonic signal with reference to a time when infrared signal is received. The input pen includes a piezoelectric element sensing pen pressure when the pen tip is in contact with the display panel and a microcomputer controlling a infrared transmitter to transmit an infrared signal which changes in accordance with the pen pressure. Thus, in ultrasonic pen input operation, information on the sensed pen pressure is wirelessly transmitted to the device main body, so as to provide a pen input/display device realizing multifunctional, high performance pen input operation based on the pen pressure information in a simple manner.

摘要翻译： 当显示面板与输入笔的笔尖接触时，设置在显示面板上的红外线接收器和至少两个超声波接收器分别接收从红外发射器和超声波同时发送的红外信号和超声波信号 发送器，并且参考接收到红外信号的时间，从接收超声波信号的超声波接收器的包含时间延迟的结果计算出笔尖在显示面板上的接触位置。 输入笔包括当笔尖与显示面板接触时感测笔压力的压电元件和控制红外发射器的微型计算机传输根据笔压变化的红外信号。 因此，在超声波笔输入操作中，将感测到的笔压的信息无线地传送到设备主体，以便提供一种笔式输入/显示设备，其以简单的方式实现基于笔压信息的多功能，高性能笔输入操作 方式。

公开(公告)号：US07719515B2

公开(公告)日：2010-05-18

申请号：US10417160

申请日：2003-04-17

申请人： Koji Fujiwara ,  Naoto Inoue ,  Tomohiko Yamamoto ,  Keiichi Tanaka ,  Hideki Ichioka

发明人： Koji Fujiwara ,  Naoto Inoue ,  Tomohiko Yamamoto ,  Keiichi Tanaka ,  Hideki Ichioka

IPC分类号： G09G5/00 ,  G06F3/041 ,  G06F3/037

CPC分类号： G09G3/20 ,  G06F3/03545 ,  G06F3/0416 ,  G06F3/043 ,  G06F3/044 ,  G09G3/3648 ,  G09G2300/0809

摘要： The invention concerns an input device including an input receiving panel and a stylus enabling an input, the input device sensing an input by means of capacitive coupling between a panel electrode on the input receiving panel and a stylus electrode on the stylus, and includes: a signal supply section supplying an input sensing signal to the panel electrode; a signal detecting circuit detecting a signal generated in the stylus electrode; and an input sensing section comparing the input sensing signal with the detection signal detected by the signal detecting circuit and sensing an input based on a result of the comparison. An input-sensing digital code is superimposed on the input sensing signal. This allows for further reduction in the possibility of false sensing caused by noise than conventional techniques.

摘要翻译： 本发明涉及一种包括输入接收面板和能够进行输入的触笔的输入装置，所述输入装置通过所述输入接收面板上的面板电极和所述触控笔上的触控笔电极之间的电容耦合感测输入，并且包括： 信号供给部，向面板电极供给输入感测信号; 信号检测电路，检测在触针电极中产生的信号; 以及输入感测部分，将输入感测信号与由信号检测电路检测到的检测信号进行比较，并且基于比较结果感测输入。 输入感测数字码叠加在输入感测信号上。 这允许进一步降低由噪声引起的误传感的可能性，而不是常规技术。

公开(公告)号：US06388646B1

公开(公告)日：2002-05-14

申请号：US09494140

申请日：2000-01-28

申请人： Koji Fujiwara ,  Tomohiko Yamamoto ,  Keiichi Tanaka ,  Naoto Inoue ,  Hideki Ichioka

发明人： Koji Fujiwara ,  Tomohiko Yamamoto ,  Keiichi Tanaka ,  Naoto Inoue ,  Hideki Ichioka

IPC分类号： G09G336

CPC分类号： G09G3/3648

摘要： It is an object of the invention to reduce a leakage low-frequency electric field from a panel section of a matrix type. In the case where a panel section has a usual current structure in which the panel section has a single common electrode elongating over the whole of the display region of the panel section, the maximum voltage difference of a reference signal supplied to the common electrode is defined to be 0.3678×x−0.6136 (wherein x is the area of the display region) or less. In the case where the panel section has the so-called counter source structure and a plurality of column electrodes, the maximum voltage difference of a reference signal supplied to the column electrodes is defined to be ax−b (wherein a=0.3565×y−0.6829, b=−0.0937y+0.7091, and y is a ratio of the area of all the column electrodes to the area of the display region) or less. In the case where a panel section has the counter source structure, the average area per unit length of one part of the column electrode opposed to a signal line is smaller than the average area per unit length of the remaining part of the column electrode other than the one part.

摘要翻译： 本发明的一个目的是从矩阵型的面板部分减少泄漏的低频电场。 在面板部具有通常的电流结构的情况下，其中面板部分具有在面板部分的整个显示区域上延伸的单个公共电极，定义提供给公共电极的参考信号的最大电压差 为0.3678xx-0.6136（其中，x为显示区域的面积）以下。 在面板部分具有所谓的反向源结构和多个列电极的情况下，提供给列电极的参考信号的最大电压差定义为ax-b（其中a = 0.3565xy-0.6829 ，b = -0.0937y + 0.7091，y是所有列电极的面积与显示区域的面积的比率）以下。 在面板部具有计数器源结构的情况下，与信号线相对的列电极的一部分的每单位长度的平均面积小于列电极的剩余部分的平均单位长度以外的平均面积 一部分。

公开(公告)号：US07205984B2

公开(公告)日：2007-04-17

申请号：US10673389

申请日：2003-09-30

申请人： Koji Fujiwara ,  Naoto Inoue

发明人： Koji Fujiwara ,  Naoto Inoue

IPC分类号： G09G5/00

CPC分类号： G06F3/0433 ,  G06F3/03545

摘要： A pen input unit includes ultrasonic receivers that receive an ultrasonic signal transmitted from an ultrasonic transmitter of an input pen. Based on the received signal, the distance (distance value) of the ultrasonic transmitter from each of the ultrasonic receivers is determined. The distance value is used for the display control of the display panel, and is supplied to a reception sensitivity control section. The reception sensitivity control section carries out reception sensitivity control for reducing a difference in level of the respective waveforms received by the ultrasonic receivers. As a result, a pen input display device of an ultrasonic pen input system is provided that prevents errors over the entire input area of the display panel without increasing power consumption or impairing operability of pen entry.

摘要翻译： 笔输入单元包括接收从输入笔的超声波发送器发送的超声波信号的超声波接收器。 基于接收到的信号，确定超声波发送器与每个超声波接收器的距离（距离值）。 距离值用于显示面板的显示控制，并被提供给接收灵敏度控制部分。 接收灵敏度控制部分执行用于减少由超声波接收器接收的各个波形的电平差的接收灵敏度控制。 结果，提供了超声波笔输入系统的笔输入显示装置，其防止在显示面板的整个输入区域上的错误，而不增加功耗或削弱笔输入的可操作性。

公开(公告)号：US06801289B2

公开(公告)日：2004-10-05

申请号：US10091343

申请日：2002-03-06

申请人： Hideki Ichioka ,  Tomohiko Yamamoto ,  Naoto Inoue ,  Keiichi Tanaka ,  Koji Fujiwara

发明人： Hideki Ichioka ,  Tomohiko Yamamoto ,  Naoto Inoue ,  Keiichi Tanaka ,  Koji Fujiwara

IPC分类号： G02F11345

CPC分类号： G02F1/1345

摘要： A liquid crystal display device has a liquid crystal layer between a glass substrate and a counter substrate. A TFT and scanning lines which control the TFT are provided on the glass substrate. On the counter substrate, a gradation signal line which is connected to a counter electrode applying a voltage to the liquid crystal layer is provided opposite to the scanning lines. A sealing section for sealing the liquid crystal of the liquid crystal layer is provided while enclosing the display area between the glass substrate and the counter substrate. The sealing section has conductive particles. Upper contact pads connected to the gradation signal lines and lower contact pads on the glass substrate are electrically connected via the conductive particles. This realizes a liquid crystal display device with a smaller frame and makes the mounting compact in size without causing poor connection due to line breakage.

摘要翻译： 液晶显示装置在玻璃基板和对置基板之间具有液晶层。 控制TFT的TFT和扫描线设置在玻璃基板上。 在对置基板上，与扫描线相对地设置有与向液晶层施加电压的对置电极连接的灰度信号线。 提供用于密封液晶层的液晶的密封部，同时包围玻璃基板和对置基板之间的显示区域。 密封部分具有导电颗粒。 连接到玻璃基板上的灰度信号线和下接触焊盘的上接触焊盘通过导电颗粒电连接。 这实现了具有较小框架的液晶显示装置，并且使得安装紧凑尺寸，而不会由于线路断裂而导致不良连接。

公开(公告)号：US06791634B2

公开(公告)日：2004-09-14

申请号：US10347191

申请日：2003-01-21

申请人： Hideki Ichioka ,  Tomohiko Yamamoto ,  Keiichi Tanaka ,  Naoto Inoue ,  Koji Fujiwara

发明人： Hideki Ichioka ,  Tomohiko Yamamoto ,  Keiichi Tanaka ,  Naoto Inoue ,  Koji Fujiwara

IPC分类号： G02F11343

CPC分类号： G02F1/1345 ,  G02F2001/136272

摘要： A display device includes: a first substrate including data electrodes and first and second groups of connecting pads; a second substrate, which faces the first substrate and which includes data signal input terminals, a spare line, and third and fourth groups of connecting pads opposed to the first and second groups of connecting pads, respectively; and a display medium layer interposed between the first and second substrates. The data signal input terminals are connected to the third group of connecting pads. In case of disconnection, a data signal to be supplied to one of the data electrodes may be input through the spare line. The fourth group of connecting pads crosses the spare line with an insulating layer interposed between them. Each pair of connecting pads in the first and third groups or the second and fourth groups is electrically connected together with an anisotropic conductive material.

摘要翻译： 显示装置包括：第一基板，包括数据电极和第一和第二组连接焊盘; 面向第一基板的第二基板，分别包括数据信号输入端子，备用线以及与第一组和第二组连接焊盘相对的第三组和第四组连接焊盘; 以及介于第一和第二基板之间的显示介质层。 数据信号输入端子连接到第三组连接焊盘。 在断开的情况下，可以通过备用线输入要提供给数据电极之一的数据信号。 第四组连接焊盘与备用线路之间插入绝缘层。 第一组和第三组或第二组和第四组中的每对连接焊盘与各向异性导电材料电连接在一起。

公开(公告)号：US06570551B2

公开(公告)日：2003-05-27

申请号：US10167626

申请日：2002-06-12

申请人： Naoto Inoue ,  Tomohiko Yamamoto ,  Keiichi Tanaka ,  Koji Fujiwara ,  Hideki Ichioka

发明人： Naoto Inoue ,  Tomohiko Yamamoto ,  Keiichi Tanaka ,  Koji Fujiwara ,  Hideki Ichioka

IPC分类号： G09G336

CPC分类号： G09G3/3688 ,  G09G3/2007 ,  G09G2310/027

摘要： As a method of driving a liquid crystal display device, the average voltage of reference line drive voltages Vcom for AC-driving a liquid crystal is set higher than the average voltage of signal line drive voltage V0. Moreover, when displaying a plurality of gray scales, the respective voltages are set so that the average voltage of the signal line drive voltages is lowered with a decrease in a voltage difference to be applied to the liquid crystal as an absolute value. In a liquid crystal display device of an opposing signal line structure, a high-quality image display is achieved by compensating for the non-symmetry of the transmissivity of the liquid crystal with respect to positive and negative drive voltages to prevent flickering and image persistence.

公开(公告)号：US07196683B2

公开(公告)日：2007-03-27

申请号：US09832232

申请日：2001-04-10

申请人： Tomohiko Yamamoto ,  Hisashi Nagata ,  Youji Yoshimura ,  Noboru Noguchi ,  Hideki Ichioka ,  Koji Fujiwara ,  Naoto Inoue ,  Keiichi Tanaka

发明人： Tomohiko Yamamoto ,  Hisashi Nagata ,  Youji Yoshimura ,  Noboru Noguchi ,  Hideki Ichioka ,  Koji Fujiwara ,  Naoto Inoue ,  Keiichi Tanaka

IPC分类号： G09G3/36

CPC分类号： G09G3/3648 ,  G09G3/2014 ,  G09G3/367 ,  G09G2320/041

摘要： In an image display device which employs pulse width modulation driving, a voltage which is less than a voltage supplied to signal lines is applied to pixel electrodes. Tones are displayed by shifting phases of waveforms of the signal lines and scanning lines, and polarities of pixels in a signal line direction are inverted alternately. This prevents increase in power consumption which is caused by pulse intervals which become too small at high tone levels, in addition to preventing change in tone level due to external factors such as temperature, or signal delays in a driver or wiring.

摘要翻译： 在采用脉宽调制驱动的图像显示装置中，向像素电极施加小于提供给信号线的电压的电压。 通过移动信号线和扫描线的波形的相位来显示音调，并且信号线方向上的像素的极性被交替地反转。 这防止由于诸如温度等外部因素或驱动器或布线中的信号延迟而导致的音调电平变化，从而防止在高音调电平下变得太小的脉冲间隔引起的功率消耗增加。

公开(公告)号：US06614416B1

公开(公告)日：2003-09-02

申请号：US09687655

申请日：2000-10-13

申请人： Tomohiko Yamamoto ,  Naoto Inoue ,  Keiichi Tanaka ,  Koji Fujiwara ,  Hideki Ichioka

发明人： Tomohiko Yamamoto ,  Naoto Inoue ,  Keiichi Tanaka ,  Koji Fujiwara ,  Hideki Ichioka

IPC分类号： G09G336

CPC分类号： G09G3/3655 ,  G09G2310/06 ,  G09G2320/0209 ,  G09G2320/0223

摘要： A wave A1 is used as a signal inputted to a liquid crystal panel via an operational amplifier OP. The wave A1 is a superimposed wave made up of, for example, a first rectangular wave to be the base of a driving signal and a second wave capable of increasing respective amplitudes of the first wave in rising and falling directions. Because a wave A3 is superimposed, using the wave A1 as the driving signal of the liquid crystal panel surely results in increase in a quantity of charges with which respective pixels of the liquid crystal panel are supplied at early stages of writing, more than simply applying the wave A2 to the liquid crystal panel. Consequently, even when a charge supplying ability of a reference voltage line is considerably low, a desired charging quantity can surely be obtained in respective pixels within desired writing time, thereby preventing crosstalk having different degrees depending on a location even when a charge supplying ability for the respective pixels of the liquid crystal panel is considerably low.

摘要翻译： 波A1被用作通过运算放大器OP输入到液晶面板的信号。 波A1是由例如作为驱动信号的基础的第一矩形波和能够增加上升和下降方向上的第一波的各自振幅的第二波构成的叠加波。 由于重叠波A3，所以使用波A1作为液晶面板的驱动信号，确实导致在写入的早期阶段提供液晶面板的各像素的电荷量的增加，而不仅仅是简单地应用 波A2到液晶面板。 因此，即使在基准电压线的充电能力相当低的情况下，也可以在期望的写入时间内的各个像素中可以确实获得期望的充电量，从而可以防止根据位置具有不同程度的串扰，即使当针对 液晶面板的各像素相当低。

公开(公告)号：US07075521B2

公开(公告)日：2006-07-11

申请号：US10238896

申请日：2002-09-11

申请人： Tomohiko Yamamoto ,  Koji Fujiwara ,  Keiichi Tanaka ,  Naoto Inoue ,  Hideki Ichioka

发明人： Tomohiko Yamamoto ,  Koji Fujiwara ,  Keiichi Tanaka ,  Naoto Inoue ,  Hideki Ichioka

IPC分类号： G09G5/00

CPC分类号： G06F3/0412 ,  G09G3/3648

摘要： Input position is accurately detected. In an x-detection period of a non-display period, a source drive circuit simultaneously applies to all signal wiring lines a pulse of a peak value proportional to a distance from a gate drive circuit. A coordinate detection circuit obtains an x-coordinate on the basis of a voltage induced at a pen corresponding to the peak value (x-coordinate) of the applied pulse. In a y-detection period, a pulse generation circuit applies one pulse to a common line. The pen detects a potential variation in amplitude proportional to a distance (y-coordinate) from the source drive circuit, generated approximately simultaneously on all the signal wiring lines via a capacitance. The coordinate detection circuit obtains the y-coordinate similarly to the case of x-coordinate detection.

摘要翻译： 准确检测输入位置。 在非显示周期的x检测周期中，源驱动电路同时向所有信号布线施加与从栅极驱动电路的距离成比例的峰值的脉冲。 坐标检测电路基于与所施加的脉冲的峰值（x坐标）对应的笔感应的电压来获得x坐标。 在y检测周期中，脉冲发生电路将一个脉冲施加到公共线。 笔检测到与来自源驱动电路的距离（y坐标）成比例的振幅的电位变化，其通过电容在所有信号布线上大致同时地产生。 坐标检测电路与x坐标检测的情况类似地获得y坐标。