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    DISPLAY DEVICE AND METHOD FOR DRIVING SAME
    1.
    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：US20160125796A1

    公开(公告)日：2016-05-05

    申请号：US14895503

    申请日：2014-07-22

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Masanori OHARA ,  Noboru NOGUCHI ,  Noritaka KISHI

    IPC分类号： G09G3/30

    CPC分类号： G09G3/30 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2330/021

    摘要： A drive circuit classifies frame periods as a drive period and a pause period, and applies a selection voltage to scanning lines in turn and applies voltages according to a video signal (a measurement voltage in the case of measurement targets) to data lines in turn during the drive period. During the pause period, the drive circuit applies the selection voltage to one scanning line corresponding to measurement target pixel circuits, and a measurement circuit measures drive currents outputted to the data lines from the measurement target pixel circuits. The drive circuit may set a write period and a measurement period in the pause period. During the write period, the drive circuit may apply the measurement voltage to the data lines. During the measurement period, the measurement circuit may measure drive currents outputted to the data lines from the measurement target pixel circuits.

    摘要翻译： 驱动电路将帧周期分类为驱动周期和暂停时段，并依次向扫描线施加选择电压，并根据视频信号（测量目标的情况下的测量电压）依次向数据线施加电压 驱动周期。 在暂停期间，驱动电路将选择电压施加到与测量对象像素电路对应的一条扫描线，测量电路测量从测量对象像素电路输出到数据线的驱动电流。 驱动电路可以在暂停时段中设置写入周期和测量周期。 在写入期间，驱动电路可以向数据线施加测量电压。 在测量期间，测量电路可以测量从测量对象像素电路输出到数据线的驱动电流。

    DISPLAY DEVICE AND DRIVE METHOD FOR SAME
    2.
    发明申请
    DISPLAY DEVICE AND DRIVE METHOD FOR SAME 有权
    显示装置和驱动方法

    公开(公告)号：US20160111044A1

    公开(公告)日：2016-04-21

    申请号：US14787793

    申请日：2014-06-20

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Noritaka KISHI ,  Noboru NOGUCHI ,  Masanori OHARA

    IPC分类号： G09G3/32

    CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2310/0291 ,  G09G2320/0233 ,  G09G2320/029 ,  G09G2320/041 ,  G09G2320/045 ,  G09G2320/0626 ,  G09G2330/021

    摘要： There is realized a display device capable of compensating for a deterioration of a circuit element while suppressing an increase of a circuit scale. One horizontal scanning period for a monitor row is composed of: a detection preparation period where preparation for detecting TFT characteristics and OLED characteristics is performed in the monitor row; a TFT characteristic detection period where current measurement for detecting the TFT characteristics is performed; an OLED characteristic detection period where current measurement for detecting the OLED characteristics is performed; and a light emission preparation period where preparation for allowing an organic EL element to emit light is performed in the monitor row. Data lines are used not only as signal lines that transfer a signal for allowing an organic EL element in each pixel circuit to emit light at desired brightness, but also as characteristic detecting signal lines.

    摘要翻译： 实现了能够在抑制电路规模的增加的同时补偿电路元件的劣化的显示装置。 监视行的一个水平扫描周期包括：在监视行中执行用于检测TFT特性和OLED特性的准备的检测准备周期; 执行用于检测TFT特性的电流测量的TFT特性检测周期; 执行用于检测OLED特性的电流测量的OLED特性检测周期; 并且在监视行中执行用于允许有机EL元件发光的准备的发光准备时段。 数据线不仅用作传输用于允许每个像素电路中的有机EL元件以期望亮度发光的信号的信号线，而且用作特征检测信号线。

    DISPLAY DEVICE AND DRIVE METHOD FOR SAME
    7.
    发明申请
    DISPLAY DEVICE AND DRIVE METHOD FOR SAME 有权
    显示装置和驱动方法

    公开(公告)号：US20160104422A1

    公开(公告)日：2016-04-14

    申请号：US14892620

    申请日：2014-07-29

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Noritaka KISHI ,  Noboru NOGUCHI ,  Shigetsugu YAMANAKA ,  Masanori OHARA

    IPC分类号： G09G3/32 ,  G09G3/00

    CPC分类号： G09G3/3233 ,  G09G3/006 ,  G09G2300/0404 ,  G09G2300/0842 ,  G09G2310/021 ,  G09G2310/0218 ,  G09G2310/08 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/045

    摘要： In a display device having a pixel circuit including an electro-optical element in which brightness is controlled by a current, and including a drive transistor for controlling a current to be supplied to the electro-optical element, a drive method therefor includes: a noise measurement step of measuring noise; characteristic detection steps of detecting characteristics of the drive transistor and the electro-optical element; a correction data update step of updating correction data, which serves for correcting a video signal, based on detection results in the characteristic detection step; and a video signal correction step of correcting the video signal based on the correction data. When noise with a standard value or more is detected in the noise measurement step, processing of the correction data update step is not performed.

    摘要翻译： 在具有像素电路的显示装置中，具有通过电流控制亮度的电光元件的像素电路，并且包括用于控制向电光元件供给的电流的驱动晶体管，其驱动方法包括：噪声 测量噪音的测量步骤; 检测驱动晶体管和电光元件的特性的特征检测步骤; 校正数据更新步骤，根据特征检测步骤中的检测结果更新用于校正视频信号的校正数据; 以及基于校正数据校正视频信号的视频信号校正步骤。 当在噪声测量步骤中检测到具有标准值或更高的噪声时，不执行校正数据更新步骤的处理。

    DISPLAY DEVICE AND METHOD FOR DRIVING SAME
    8.
    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：US20150317952A1

    公开(公告)日：2015-11-05

    申请号：US14654114

    申请日：2013-12-27

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Masanori OHARA ,  Noboru NOGUCHI ,  Noritaka KISHI

    IPC分类号： G09G5/18 ,  G09G5/10 ,  G09G3/32

    CPC分类号： G09G5/18 ,  G09G3/2003 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G5/10 ,  G09G2300/0452 ,  G09G2300/0804 ,  G09G2310/0235 ,  G09G2310/0286 ,  G09G2320/0261

    摘要： An embodiment of the present invention realizes a display device equipped with a self light-emitting type display element driven by a current, by using a pixel circuit having a configuration simpler than a conventional configuration. A pixel circuit includes a driving transistor (T1), an input transistor (T2), a capacitor (Cst), and three organic EL elements (OLED(R), OLED(G), and OLED(B)). Cathode terminals of the organic EL elements (OLED(R), OLED(G), and OLED(B)) are respectively connected to low-level power supply lines (ELVSS(R), ELVSS(G), and ELVSS(B)). In such a configuration, in each sub-frame, only a low-level power supply voltage (ELVSS) corresponding to the sub-frame is set to a relatively low level, and the other low-level power supply voltages (ELVSS) are set to relatively high levels.

    摘要翻译： 本发明的实施例通过使用具有比常规配置简单的配置的像素电路来实现配备有由电流驱动的自发光型显示元件的显示装置。 像素电路包括驱动晶体管（T1），输入晶体管（T2），电容器（Cst）和三个有机EL元件（OLED，OLED（G）和OLED（B））。 有机EL元件（OLED，OLED（G）和OLED（B））的阴极端子分别连接到低电平电源线（ELVSS（R），ELVSS（G））和ELVSS（B） ）。 在这样的结构中，在各子帧中，仅将与子帧对应的低电平电源电压（ELVSS）设定为较低电平，设定其他低电平电源电压（ELVSS） 到相对较高的水平。