会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Information display device capable of increasing detection speed and
detection accuracy of input coordinates on display screen by detecting
movement amount of electronic pen
    • 信息显示装置,通过检测电子笔的移动量,能够提高显示画面上的输入坐标的检测速度和检测精度
    • US5631670A
    • 1997-05-20
    • US329252
    • 1994-10-26
    • Akira TomiyoshiTakafumi KawaguchiMakoto Takeda
    • Akira TomiyoshiTakafumi KawaguchiMakoto Takeda
    • G06F3/041G06F3/033G06F3/044G06F3/048G09G3/36G09G5/00
    • G06F3/0412G09G3/3648
    • There is provided an information display device in which speed of detecting input coordinates on a display screen is increased. A coordinate detection circuit 7 detects indication coordinates at a tip end of an electronic pen 6 based on an induction voltage induced at a detection electrode of the electronic pen 6 in scanning a row electrode G and a column electrode S. A coordinate output circuit 17 obtains indication coordinates at the tip end of the electronic pen 6 based on a movement amount detection signal from a movement amount detecting section 20 of the electronic pen 6. A coordinate signal generating circuit 18 outputs an x-coordinate signal and a y-coordinate signal by combining the indication coordinates detected by the coordinate detection circuit 7 and the indication coordinates obtained by the coordinate output circuit 17. Thus by filling an interval between the indication coordinates detected by the coordinate detection circuit 7 with indication coordinates obtained by the coordinate output circuit 17, an apparent detection speed of the input coordinates can be increased.
    • 提供了一种信息显示装置,其中检测显示屏幕上的输入坐标的速度增加。 坐标检测电路7基于在扫描行电极G和列电极S时在电子笔6的检测电极感应的感应电压来检测电子笔6的尖端处的指示坐标。坐标输出电路17获得 基于来自电子笔6的移动量检测部20的移动量检测信号,电子笔6的前端的指示坐标。坐标信号生成电路18输出x坐标信号和y坐标信号 组合由坐标检测电路7检测的指示坐标和由坐标输出电路17获得的指示坐标。因此,通过将由坐标检测电路7检测到的指示坐标之间的间隔填充到由坐标输出电路17获得的指示坐标, 可以增加输入坐标的表观检测速度。
    • 2. 发明授权
    • Display apparatus
    • 显示装置
    • US5614922A
    • 1997-03-25
    • US414717
    • 1995-03-31
    • Takafumi KawaguchiAkira TomiyoshiMakoto Takeda
    • Takafumi KawaguchiAkira TomiyoshiMakoto Takeda
    • G02F1/133G09G3/20G09G3/36
    • G09G3/2011G09G3/3648G09G3/3688G09G2310/027G09G2330/021G09G3/2018
    • The active matrix type display apparatus of this invention includes a display medium made of an electro-optical material; a pair of substrates opposing each other with the display medium interposed therebetween; a plurality of pixel electrodes formed in a matrix on one of the substrates; a plurality of row electrodes; a plurality of column electrodes; switching devices each of which is disposed so as to correspond to each of the pixel electrodes, connects the corresponding pixel electrode to the column electrode corresponding to the pixel electrode, and is connected to the row electrode corresponding to the pixel electrode through a control terminal thereof; a row electrode driving circuit for applying a voltage to each of the row electrodes so that the corresponding switching device become conductive only in a row electrode scanning term during a horizontal scanning term assigned to each of the row electrodes; a column electrode driving circuit for alternately applying two kinds of voltages to each of the column electrodes repeatedly at a duty ratio in accordance with a display data corresponding to each of the column electrodes; and voltage switching inhibition element for inhibiting switching of the voltages to be applied to each of the column electrodes by the column electrode driving circuit at least in part of a horizontal scanning term that is not assigned as the row electrode scanning term of any of the row electrodes.
    • 本发明的有源矩阵型显示装置包括由电光材料制成的显示介质; 一对基板彼此相对,介于其间的显示介质; 在一个基板上以矩阵形成的多个像素电极; 多个行电极; 多个列电极; 将与各像素电极对应配置的开关元件,将对应的像素电极与对应于像素电极的列电极相连接,并通过控制端子连接到与像素电极对应的行电极 ; 行电极驱动电路,用于向每个行电极施加电压,使得相应的开关器件在分配给每个行电极的水平扫描期间仅在行电极扫描期间变为导通; 列电极驱动电路,用于根据对应于每个列电极的显示数据以占空比重复地向每个列电极施加两种电压; 以及电压切换禁止元件,用于通过列电极驱动电路抑制对列电极施加的电压的切换,至少部分水平扫描项不被分配为行中的任一行的行电极扫描项 电极。
    • 3. 发明授权
    • Display-integrated type tablet device with high coordinate detection
accuracy and method for driving the same
    • 具有高坐标检测精度的显示器集成式平板装置及其驱动方法
    • US5448024A
    • 1995-09-05
    • US236359
    • 1994-04-29
    • Takafumi KawaguchiAkira TomiyoshiMakoto Takeda
    • Takafumi KawaguchiAkira TomiyoshiMakoto Takeda
    • G06F3/033G06F3/041G08C21/00G09G3/02
    • G06F3/0412
    • A switching circuit selects a display control circuit in an image display period, and selects a detection control circuit in an x-coordinate detection period. A row electrode drive circuit outputs row electrode scanning pulses in the image display period to sequentially scan row electrodes. A column electrode drive circuit outputs column electrode scanning pulses in the x-coordinate detection period to sequentially scan column electrodes. A coordinate detection circuit detects coordinates at a tip end of a detection pen based on an induction voltage induced at a tip electrode of the detection pen due to the scanning pulses. Accordingly, by detecting a y-coordinate at the tip end of the electronic pen in the image display period and detecting the x-coordinate in the x-coordinate detection period, a display-integrated type tablet device can achieve an increase in area of its display screen, high productivity, cost reduction, and high coordinate detection accuracy.
    • 开关电路在图像显示周期中选择显示控制电路,并且在x坐标检测周期中选择检测控制电路。 行电极驱动电路在图像显示周期中输出行电极扫描脉冲,以顺序扫描行电极。 列电极驱动电路在x坐标检测期间输出列电极扫描脉冲,以顺序扫描列电极。 坐标检测电路根据由于扫描脉冲在检测笔的尖端电极感应的感应电压来检测检测笔的前端的坐标。 因此,通过在图像显示周期中检测电子笔的末端的y坐标,并且在x坐标检测期间检测x坐标,显示一体化型平板装置可以实现其在 显示屏幕,高生产率,成本降低和高坐标检测精度。
    • 4. 发明授权
    • Liquid crystal display method and apparatus for controlling gray scale
display
    • 用于控制灰度显示的液晶显示方法和装置
    • US5745087A
    • 1998-04-28
    • US432530
    • 1995-05-01
    • Akira TomiyoshiTakafumi Kawaguchi
    • Akira TomiyoshiTakafumi Kawaguchi
    • G02F1/133G09G3/20G09G3/36
    • G09G3/3648G09G2320/0204G09G2320/0219G09G3/2014G09G3/2018
    • A gray scale signal duty ratio conversion section employs D flip-flops and AND gates so as to generate detection pulses for rises and falls of the gray scale signal T based on the gray scale signal T input from the control circuit and the clock signal CKT. Among the rise-detection pulses and fall-detection pulses, only the fall-detection pulses are delayed by the D flip-flop by one clock, and the delayed fall-detection pulses and the rise-detection pulses are input to an RS flip-flop so that the altered gray scale signal T' is obtained as an output of the RS flip-flop. The altered gray scale signal T' thus obtained is a signal whose HIGH period is longer than the input gray scale T by one clock. Thus, it is possible to compensate for the phenomenon associated with a TFT liquid crystal display device driven by the gray-scale driving method where a voltage applied to a liquid crystal capacitance may vary with the turning off of the TFT is from the voltage it was charged with. As a result, the liquid crystal material is prevented from being deteriorated, whereby the display quality and the reliability of the liquid crystal display device are improved.
    • 灰度信号占空比转换部分根据从控制电路和时钟信号CKT输入的灰度信号T,使用D个触发器和“与”门,以产生灰度信号T的上升和下降检测脉冲。 在上升检测脉冲和下降检测脉冲中,只有下降检测脉冲被D触发器延迟一个时钟,并且延迟的下降检测脉冲和上升检测脉冲被输入到RS触发器, 使得改变的灰度信号T'作为RS触发器的输出获得。 如此获得的改变的灰度信号T'是其HIGH周期比输入灰度T长一个时钟的信号。 因此,可以补偿与由灰度驱动方法驱动的TFT液晶显示装置相关联的现象,其中施加到液晶电容的电压可能随着TFT的截止而变化, 被控。 结果,防止液晶材料劣化,从而提高了液晶显示装置的显示质量和可靠性。
    • 6. 发明授权
    • Display, drive circuit of display, and method of driving display
    • 显示器,显示器的驱动电路和驱动显示器的方法
    • US08026882B2
    • 2011-09-27
    • US11988228
    • 2006-07-05
    • Akira Tomiyoshi
    • Akira Tomiyoshi
    • G09G3/36
    • G09G3/3611G09G3/3688G09G2370/08
    • The present invention relates to a display that uses a polysilicon liquid crystal panel.An object of the present invention is to sufficiently secure a hold period and a setup period upon a rise of a source start pulse signal (SSP) without increasing power consumption or increasing circuit scale.A display control circuit (200) includes a source start pulse signal generating circuit (2311) that generates a source start pulse signal (SSP); and a source shift clock signal generating circuit (2313) that generates a source shift clock signal (SCK). The source shift clock signal generating circuit (2313) shortens a period during which the source shift clock signal (SCK) is maintained at a high level, only during a period of time which is immediately before the source start pulse signal (SSP) rises in each horizontal scanning period, based on a source shift clock modification command signal (K) to be outputted from the source start pulse signal generating circuit (2311).
    • 本发明涉及使用多晶硅液晶面板的显示器。 本发明的目的是在不增加功率消耗或增加电路规模的情况下,在源起始脉冲信号(SSP)的上升时充分确保保持周期和建立周期。 显示控制电路(200)包括产生源起始脉冲信号(SSP)的源起始脉冲信号发生电路(2311)。 以及产生源极移位时钟信号(SCK)的源极移位时钟信号发生电路(2313)。 源极移位时钟信号发生电路(2313)仅在源极开始脉冲信号(SSP)上升之前的时间段内将源极移位时钟信号(SCK)保持在高电平的时段缩短 每个水平扫描周期基于从源起始脉冲信号发生电路(2311)输出的源移位时钟修改指令信号(K)。
    • 8. 发明授权
    • Light source with overlapping light guide elements for liquid crystal display device
    • 具有重叠导光元件的光源用于液晶显示装置
    • US08269918B2
    • 2012-09-18
    • US12375240
    • 2007-06-22
    • Akira Tomiyoshi
    • Akira Tomiyoshi
    • G02F1/1335F21V7/04
    • G02B6/0088G02B6/0046G02B6/008
    • A light source device having light guide elements (2a to 2f) and light emitting elements (3a to 3f) for supplying light to each of the light guide elements. The light guide elements each has a wedge-like shape whose thickness is reduced from one end to the other end. The light guide elements are tandem arranged such that the thinner end of a light guide element lies over the thicker end of the other light guide element. Each light guide element has holding sections recessed in the width direction (8a to 8f, 9a to 9f) in its thicker end on which the other light guide element lies. In the light guide device in which the wedge shaped light guide elements are tandem arranged, positional displacement between light guide elements is prevented.
    • 一种具有导光元件(2a至2f)和用于向每个导光元件供应光的发光元件(3a至3f)的光源装置。 光导元件各自具有楔形形状,其厚度从一端减小到另一端。 光导元件是串联布置的,使得导光元件的较薄端位于另一导光元件的较厚端上。 每个导光元件具有在宽度方向(8a至8f,9a至9f)上凹入的保持部分,其较厚端部处于另一个导光元件所在的位置。 在楔形导光元件串列布置的导光装置中,防止导光元件之间的位置偏移。