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公开(公告)号：US5801671A
公开(公告)日：1998-09-01
申请号：US630991
申请日：1996-04-12
CPC分类号： G09G3/3622 , G09G3/3692 , G09G2320/0223 , G09G3/2011 , G09G3/2014 , G09G3/2018 , G09G3/3681
摘要： A liquid crystal display panel 51 of N rows.times.M columns is driven by a segment driver 52 with two different voltages VS1, VS2, and by a common driver 53 with three voltages VC1, VC2, VC3. An output voltage waveform of the segment driver 52 is modulated for gradation display. The two different voltages VS1, VS2 are selected to be low voltages so as not to require high withstand voltage process in the segment driver 52, which makes it easier to integrated to a large scale in the case of realizing the segment driver 52 as a semiconductor integrated circuit.
摘要翻译： N行x列的液晶显示面板51由具有两个不同电压VS1，VS2的段驱动器52和具有三个电压VC1，VC2，VC3的公共驱动器53驱动。 段驱动器52的输出电压波形被调制用于灰度显示。 两个不同的电压VS1，VS2被选择为低电压，从而不需要段驱动器52中的高耐压工艺，这使得在实现作为半导体的段驱动器52的情况下更容易集成大规模 集成电路。
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公开(公告)号：US06043998A
公开(公告)日：2000-03-28
申请号：US333272
申请日：1999-06-15
CPC分类号： H02M3/073
摘要： A voltage multiplying device of the present invention is provided with: a voltage multiplication level setting circuit for setting a voltage multiplying level which indicates how many times the power source voltage is multiplied; a voltage multiplication pulse signal generating circuit for outputting a plurality of voltage multiplication pulse signals, each having a predetermined period and varying with a predetermined phase difference; a condition decoder circuit and a voltage multiplication pulse selecting circuit for outputting a voltage multiplication controlling signal, which varies in accordance with the determined voltage multiplication level, in synchronization with the pulse signal; and a voltage multiplication level outputting circuit for multiplying the power source voltage step by step to the set voltage multiplication level in accordance with the voltage multiplication controlling signal and for outputting the voltage multiplication level in each of the steps. This arrangement makes it possible to obtain a plurality of voltage multiplication levels by using a single voltage multiplying device, without changing a circuit connection.
摘要翻译： 本发明的电压倍增装置具有：电压倍数电平设定电路，用于设定表示电源电压相乘多少倍的倍压电平; 电压倍增脉冲信号发生电路，用于输出多个电压倍增脉冲信号，每个具有预定周期并以预定相位差变化; 条件解码器电路和电压倍增脉冲选择电路，用于与脉冲信号同步地输出根据确定的电压倍增电平而变化的电压倍增控制信号; 以及电压倍增电平输出电路，用于根据电压倍增控制信号将电源电压逐步乘以设定电压倍数电平，并在每个步骤中输出电压倍增电平。 这种布置使得可以通过使用单个电压倍增装置来获得多个电压倍增电平，而不改变电路连接。
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公开(公告)号：US5365250A
公开(公告)日：1994-11-15
申请号：US944119
申请日：1992-09-10
申请人： Hiroyuki Hirashima
发明人： Hiroyuki Hirashima
CPC分类号： G09G3/006 , G01R31/2879 , Y10S345/904
摘要： A semiconductor device for driving a liquid crystal panel includes an output unit for generating output signals to drive a liquid crystal panel, a terminal for supplying a voltage from a power supply in the outside of the device, a voltage changing unit connected to the terminal for changing the voltage through the terminal into a voltage necessary for a self burn-in test and for supplying the output unit with the changed voltage, and a control unit for controlling the output unit to conduct the self burn-in test when a predetermined control signal is applied thereto from the outside of the device.
摘要翻译： 用于驱动液晶面板的半导体器件包括用于产生驱动液晶面板的输出信号的输出单元，用于从设备外部的电源提供电压的端子，连接到端子的电压改变单元 将通过端子的电压改变为自我老化测试所需的电压，以及向输出单元提供改变的电压;以及控制单元，用于控制输出单元进行自我老化测试，当预定的控制信号 从设备的外部施加到其上。
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公开(公告)号：US20060220692A1
公开(公告)日：2006-10-05
申请号：US11390344
申请日：2006-03-28
申请人： Hiroyuki Hirashima
发明人： Hiroyuki Hirashima
CPC分类号： G11C27/024
摘要： A first sampling capacitor 3 is connected between an output terminal of a first analog switch 1 and the ground, and an input terminal of a second analog switch 2 is connected to a node between the first analog switch 1 and the first sampling capacitor 3. A second sampling capacitor 4 is connected between an output terminal of the first analog switch 1 and the ground. A control part turning on the first and second analog switches 1 and 2 in a state in which an input voltage is applied to the input terminal of the first analog switch 1, thereafter turns off the second analog switch 2, subsequently turns off the first analog switch 1 and subsequently turns on the second analog switch 2.
摘要翻译： 第一采样电容器3连接在第一模拟开关1的输出端和地之间，第二模拟开关2的输入端连接到第一模拟开关1和第一采样电容器3之间的节点。 第二采样电容器4连接在第一模拟开关1的输出端和地之间。 控制部在将输入电压施加到第一模拟开关1的输入端子的状态下接通第一和第二模拟开关1和2，然后关闭第二模拟开关2，随后关闭第一模拟开关 开关1，随后打开第二个模拟开关2。
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