DISPLAY DEVICE AND METHOD FOR DRIVING SAME
    61.
    发明申请
    DISPLAY DEVICE AND METHOD FOR DRIVING SAME 有权
    显示装置及其驱动方法

    公开(公告)号:US20130314397A1

    公开(公告)日:2013-11-28

    申请号:US13985271

    申请日:2012-02-07

    申请人: Kohhei Tanaka

    发明人: Kohhei Tanaka

    IPC分类号: G09G3/36

    摘要: In each pixel formation portion of a display device, an amplification electrode is provided which is connected to a drain electrode of a thin-film transistor whose gate electrode is connected to a gate bus line and whose source electrode is connected to a source bus line. A second-capacitor is formed by the amplification electrode and a pixel electrode. A selection period is constituted by a precharge period and an amplification period. In the precharge period, a video signal potential is applied to the pixel electrode and a potential of a control wire is applied to the amplification electrode. In the amplification period, a video signal potential is applied to the amplification electrode with the pixel electrode being in a floating state.

    摘要翻译: 在显示装置的每个像素形成部分中,提供了一个放大电极,该放大电极连接到一个薄膜晶体管的漏电极,该栅极连接到栅极总线,其源极连接到源极总线。 第二电容器由放大电极和像素电极形成。 选择期间由预充电期间和放大期间构成。 在预充电期间,对像素电极施加视频信号电位,并且将控制线的电位施加到放大电极。 在放大期间,在像素电极为浮置状态的情况下,对放大电极施加视频信号电位。

    Semiconductor device
    62.
    发明授权
    Semiconductor device 有权
    半导体器件

    公开(公告)号:US08289238B2

    公开(公告)日:2012-10-16

    申请号:US12327883

    申请日:2008-12-04

    申请人: Hajime Kimura

    发明人: Hajime Kimura

    IPC分类号: G09G3/30

    摘要: A semiconductor device in which a transistor can supply an accurate current to a load (EL pixel and signal line) without being influenced by variations is provided.A voltage at each terminal of a transistor is adjusted by a feedback circuit using an amplifier circuit. A current Idata is input from a current source circuit to the transistor, and a gate-source voltage is set by the feedback circuit so that the transistor can flow the current Idata. The feedback circuit controls the transistor to operate in a saturation region. Thus, a gate voltage required for flowing the current Idata is set. With the use of the set transistor, a current can be supplied to a load (EL pixel and signal line) with accuracy. Note that a desired gate voltage can be set quickly since the amplifier circuit is utilized.

    摘要翻译: 提供一种半导体器件,其中晶体管可以不受变化影响而向负载(EL像素和信号线)提供精确的电流。 通过使用放大器电路的反馈电路来调整晶体管的每个端子处的电压。 电流Idata从电流源电路输入到晶体管,并且栅极 - 源极电压由反馈电路设置,使得晶体管可以流过电流Idata。 反馈电路控制晶体管在饱和区域中工作。 因此,设定流过当前Idata所需的栅极电压。 通过使用设定晶体管,可以精确地向负载(EL像素和信号线)提供电流。 注意,由于利用放大器电路,所以可以快速地设置所希望的栅极电压。

    PIXEL CIRCUITRY OF DISPLAY DEVICE
    63.
    发明申请
    PIXEL CIRCUITRY OF DISPLAY DEVICE 审中-公开
    显示设备的像素电路

    公开(公告)号:US20120007901A1

    公开(公告)日:2012-01-12

    申请号:US12831410

    申请日:2010-07-07

    IPC分类号: G09G5/02

    摘要: A pixel circuitry of a display device is provided to make a voltage level transmitted to a display element be close to a voltage level of a received data voltage, such that the pixel circuitry faithfully transmits the data voltage to the display element. The pixel circuitry of a display device includes a first write switch, a first write memory unit, a first voltage following module, and a display element. The first voltage following module is to detect a first data voltage stored in the first write memory unit, and to generate a corresponding first output voltage at a terminal of the display element based on a detection result. A first output terminal of the first voltage following module is controlled by a switching voltage.

    摘要翻译: 提供显示装置的像素电路以使传输到显示元件的电压电平接近接收数据电压的电压电平,使得像素电路将数据电压忠实地传送到显示元件。 显示装置的像素电路包括第一写入开关,第一写入存储器单元,第一电压跟随模块和显示元件。 第一电压跟随模块是检测存储在第一写存储器单元中的第一数据电压,并且基于检测结果在显示元件的终端处产生相应的第一输出电压。 第一电压跟随模块的第一输出端子由开关电压控制。

    Circuit for signal amplification and use of the same in active matrix devices
    64.
    发明授权
    Circuit for signal amplification and use of the same in active matrix devices 失效
    用于信号放大的电路及其在有源矩阵器件中的使用

    公开(公告)号:US07733337B2

    公开(公告)日:2010-06-08

    申请号:US10567171

    申请日:2004-07-30

    IPC分类号: G09G5/00

    摘要: An amplification circuit comprises a capacitor arrangement (42) and a switching arrangement. The capacitor arrangement has a first capacitor (C2) which has a voltage-dependent capacitance and a second capacitor (C1) (which may also be voltage-dependent). The circuit is operable in two modes, a first mode in which the input voltage is provided to one terminal of at least the first capacitor, and a second mode in which the switching arrangement causes charge to be redistributed between the first and second capacitors such that the voltage across the first capacitor changes to reduce the capacitance of the first capacitor, the output voltage being dependent on the resulting voltage across the first capacitor. The invention uses a voltage controlled capacitance in combination with charge sharing between capacitors, which has the result of providing a voltage amplification characteristic. This arrangement can thus be used for the amplification of an analogue voltage, or the boosting of a fixed level (i.e. digital voltage). Thus, the circuit of the invention can be used for level shifting or amplification, for example for use in the pixels of an active matrix array device.

    摘要翻译: 放大电路包括电容器装置(42)和开关装置。 电容器装置具有第一电容器(C2),其具有电压相关的电容和第二电容器(C1)(其也可以是取决于电压的)。 电路可以以两种模式操作:第一模式,其中输入电压被提供给至少第一电容器的一个端子;以及第二模式,其中开关装置使电荷在第一和第二电容器之间重新分布,使得 第一电容器两端的电压改变以减小第一电容器的电容,输出电压取决于第一电容器两端产生的电压。 本发明使用电压控制电容与电容器之间的电荷共享结合起来,其具有提供电压放大特性的结果。 因此,这种布置可用于放大模拟电压,或升高固定电平(即数字电压)。 因此,本发明的电路可用于电平转换或放大,例如用于有源矩阵阵列器件的像素。

    Circuit for signal amplification and use of the same in active matrix devices
    67.
    发明申请
    Circuit for signal amplification and use of the same in active matrix devices 失效
    用于信号放大的电路及其在有源矩阵器件中的使用

    公开(公告)号:US20060232577A1

    公开(公告)日:2006-10-19

    申请号:US10567171

    申请日:2004-07-30

    IPC分类号: G09G5/00

    摘要: An amplification circuit comprises a capacitor arrangement (42) and a switching arrangement The capacitor arrangement has a first capacitor (C2) which has a voltage-dependent capacitance and a second capacitor (C1) (which may also be voltage-dependent). The circuit is operable in two modes, a first mode in which the input voltage is provided to one terminal of at least the first capacitor, and a second mode in which the switching arrangement causes charge to be redistributed between the first and second capacitors such that the voltage across the first capacitor changes to reduce the capacitance of the first capacitor, the output voltage being dependent on the resulting voltage across the first capacitor. The invention uses a voltage controlled capacitance in combination with charge sharing between capacitors, which has the result of providing a voltage amplification characteristic. This arrangement can thus be used for the amplification of an analogue voltage, or the boosting of a fixed level (i.e. digital voltage). Thus, the circuit of the invention can be used for level shifting or amplification, for example for use in the pixels of an active matrix array device.

    摘要翻译: 放大电路包括电容器装置(42)和开关装置。电容器装置具有具有电压相关电容的第一电容器(C 2)和第二电容器(C 1)(其也可以是取决于电压的)。 电路可以以两种模式操作:第一模式,其中输入电压被提供给至少第一电容器的一个端子;以及第二模式,其中开关装置使电荷在第一和第二电容器之间重新分布,使得 第一电容器两端的电压改变以减小第一电容器的电容,输出电压取决于第一电容器两端产生的电压。 本发明使用电压控制电容与电容器之间的电荷共享结合起来,其具有提供电压放大特性的结果。 因此,这种布置可用于放大模拟电压,或升高固定电平(即数字电压)。 因此,本发明的电路可用于电平转换或放大,例如用于有源矩阵阵列器件的像素。

    Electro-optical device and electronic apparatus
    70.
    发明申请
    Electro-optical device and electronic apparatus 失效
    电光装置和电子设备

    公开(公告)号:US20050225683A1

    公开(公告)日:2005-10-13

    申请号:US11079173

    申请日:2005-03-15

    申请人: Toshiyuki Nozawa

    发明人: Toshiyuki Nozawa

    摘要: To ensure uniformity of display regardless of a characteristics difference and temporal deterioration of a light-emitting element. An optical feedback type pixel circuit having a photoelectric transducer therein comprises a capacitor C1 for storing as an electric charge an integral value of the photoelectric current output from the photoelectric transducer; a comparator for changing a level of an output voltage Vout at a timing when a first voltage set according to the electric charge stored in the capacitor C1 reaches a second voltage set according to data supplied through a data line X; and a transistor T2 electrically controlled according to the output voltage Vout from the comparator for making an organic EL element OLED emit light when the first voltage has not reached the second voltage and for making the organic EL element OLED stop emitting the light when the first voltage reaches the second voltage.

    摘要翻译: 为了确保显示器的均匀性,而与发光元件的特性差异和时间劣化无关。 具有光电转换器的光反馈型像素电路包括电容器C1,用于作为电荷存储从光电变换器输出的光电流的积分值; 在根据存储在电容器C1中的电荷设定的第一电压达到根据通过数据线X提供的数据设定的第二电压的定时,改变输出电压Vout的电平的比较器; 并且当第一电压还没有达到第二电压时,根据来自比较器的输出电压Vout进行电控制的晶体管T2,用于使有机EL元件OLED发光,并且当第一电压达到第一电压时使有机EL元件OLED停止发光 达到第二电压。