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
    • 94. 发明授权
    • Logic circuit, timing generation circuit, display device, and portable terminal
    • 逻辑电路,定时生成电路,显示装置和便携式终端
    • US07126376B2
    • 2006-10-24
    • US10485374
    • 2003-05-30
    • Yoshitoshi KidaYoshiharu NakajimaToshikazu Maekawa
    • Yoshitoshi KidaYoshiharu NakajimaToshikazu Maekawa
    • H03K19/173H03K3/037
    • G09G3/20G09G3/3648G09G5/18G09G2300/0408G09G2310/0289G09G2310/08
    • When a buffer is formed by using transistors having large element characteristic variations, the deviation of the timing between the input clock pulse and the reset pulse is likely to occur. When the deviation of the timing becomes larger, a malfunction is caused to occur, and an operation margin becomes smaller with respect to the variations of the element characteristics. In a timing generation circuit, which is formed on an insulating substrate and which has two TFFs (12, 13), for generating a dot clock DCK and a horizontal clock HCK whose frequencies are different in synchronization with a master clock MCK which is input external to the substrate, separate reset pulses drst and hrst are generated at a pulse generation circuit 15 with respect to the two TFFs (12, 13), and a resetting operation is performed at separate timings. Thus, a large operation margin can be ensured even when each circuit is formed by using TFTs having large element characteristic variations and a rough process rule.
    • 当通过使用具有大的元件特性变化的晶体管形成缓冲器时,可能会发生输入时钟脉冲与复位脉冲之间的定时偏差。 当定时的偏差变大时,会发生故障,相对于元件特性的变化,操作余量变小。 在形成在绝缘基板上并具有两个TFF(12,13)的定时产生电路中,用于产生点时钟DCK和频率与输入外部的主时钟MCK同步的频率不同的水平时钟HCK 在相对于两个TFF(12,13)的脉冲发生电路15处产生分离的复位脉冲drst和hrst,并且在单独的定时执行复位操作。 因此,即使当通过使用具有大的元件特性变化的TFT和粗略的处理规则形成每个电路时,也可以确保大的操作余量。
    • 98. 发明授权
    • Liquid crystal display device
    • 液晶显示装置
    • US06795050B1
    • 2004-09-21
    • US09383923
    • 1999-08-26
    • Masumitsu InoToshikazu MaekawaYoshiharu NakajimaHiroaki Ichikawa
    • Masumitsu InoToshikazu MaekawaYoshiharu NakajimaHiroaki Ichikawa
    • G09G336
    • G09G3/3688G09G3/3614G09G3/3648G09G2310/0297G09G2320/0209
    • An active-matrix-type liquid crystal display device supplies signal potentials to signal lines of a liquid crystal display panel according to a time-division drive method using time-division switches. The low-level potential of select pulses to be supplied from a select pulse generating circuit to CMOS analog switches of the time-division switches is set to be lower than the low-level potential of a signal potential output from a horizontal drive circuit. With this arrangement, even if the signal potential of a non-selected signal line is decreased due to the crosstalk of a signal potential from a selected signal line to the non-selected signal line, the generation of insufficient contrast and non-uniformity of the luminance in the horizontal direction can be prevented. As a consequence, a high image quality is maintained.
    • 根据使用时分开关的时分驱动方法,有源矩阵型液晶显示装置向液晶显示面板的信号线提供信号电位。 将从选择脉冲发生电路提供的选择脉冲的低电平电位设置为低于从水平驱动电路输出的信号电位的低电位电位。 利用这种布置,即使由于从所选择的信号线到未选择的信号线的信号电位的串扰,未被选择的信号线的信号电位降低,产生不足的对比度和不均匀性 可以防止水平方向的亮度。 因此,保持高图像质量。