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    Display device and method for driving the same
    2.
    发明申请
    Display device and method for driving the same 有权
    显示装置及其驱动方法

    公开(公告)号：US20070242031A1

    公开(公告)日：2007-10-18

    申请号：US11730634

    申请日：2007-04-03

    申请人： Hajime Kimura ,  Yasunori Yoshida ,  Hideaki Shishido ,  Atsushi Umezaki ,  Makoto Yanagisawa ,  Shunpei Yamazaki

    发明人： Hajime Kimura ,  Yasunori Yoshida ,  Hideaki Shishido ,  Atsushi Umezaki ,  Makoto Yanagisawa ,  Shunpei Yamazaki

    IPC分类号： G09G3/36

    CPC分类号： G09G3/36 ,  G02F1/133603 ,  G02F1/1362 ,  G09G3/3208 ,  G09G3/3426 ,  G09G3/3648 ,  G09G2300/046 ,  G09G2320/0238 ,  G09G2320/062 ,  G09G2320/066 ,  G09G2330/021

    摘要： It is an object to provide a display device in which a problem of light leakage from a liquid crystal element in black display is reduced or overcome and the contrast is improved. It is another object to provide a pixel circuit having a function to control a lighting state of a backlight based on each pixel. These objects are achieved by turning off a light-emitting element in display of a black gray scale, and by providing a light-emitting element in each pixel and providing, in a pixel circuit, a function to individually control lighting and non-lighting of the light-emitting element depending on a gray scale to perform display. When a backlight is provided in each pixel, a light-emitting element that is a backlight is turned off when a black gray scale is displayed, whereby reduction in contrast due to light leakage from a liquid crystal element can be prevented.

    摘要翻译： 本发明的目的是提供一种显示装置，其中减少或克服了黑色显示器中的液晶元件的漏光问题，并提高了对比度。 另一个目的是提供一种具有基于每个像素来控制背光的点亮状态的功能的像素电路。 这些目的是通过关闭黑色灰度显示器中的发光元件来实现的，并且通过在每个像素中提供发光元件并在像素电路中提供单独控制照明和非点亮的功能 该发光元件根据灰度来执行显示。 当在每个像素中设置背光时，当显示黑色灰度时，作为背光的发光元件被关闭，由此可以防止由于来自液晶元件的光泄漏造成的对比度的降低。

    Display device having light-emitting element and liquid crystal element and method for driving the same
    3.
    发明授权
    Display device having light-emitting element and liquid crystal element and method for driving the same 有权
    具有发光元件和液晶元件的显示装置及其驱动方法

    公开(公告)号：US08159449B2

    公开(公告)日：2012-04-17

    申请号：US11730634

    申请日：2007-04-03

    申请人： Hajime Kimura ,  Yasunori Yoshida ,  Hideaki Shishido ,  Atsushi Umezaki ,  Makoto Yanagisawa ,  Shunpei Yamazaki

    发明人： Hajime Kimura ,  Yasunori Yoshida ,  Hideaki Shishido ,  Atsushi Umezaki ,  Makoto Yanagisawa ,  Shunpei Yamazaki

    IPC分类号： G09G3/36

    CPC分类号： G09G3/36 ,  G02F1/133603 ,  G02F1/1362 ,  G09G3/3208 ,  G09G3/3426 ,  G09G3/3648 ,  G09G2300/046 ,  G09G2320/0238 ,  G09G2320/062 ,  G09G2320/066 ,  G09G2330/021

    摘要： It is an object to provide a display device in which a problem of light leakage from a liquid crystal element in black display is reduced or overcome and the contrast is improved. It is another object to provide a pixel circuit having a function to control a lighting state of a backlight based on each pixel. These objects are achieved by turning off a light-emitting element in display of a black gray scale, and by providing a light-emitting element in each pixel and providing, in a pixel circuit, a function to individually control lighting and non-lighting of the light-emitting element depending on a gray scale to perform display. When a backlight is provided in each pixel, a light-emitting element that is a backlight is turned off when a black gray scale is displayed, whereby reduction in contrast due to light leakage from a liquid crystal element can be prevented.

    摘要翻译： 本发明的目的是提供一种显示装置，其中减少或克服了黑色显示器中的液晶元件的漏光问题，并提高了对比度。 另一个目的是提供一种具有基于每个像素来控制背光的点亮状态的功能的像素电路。 这些目的是通过关闭黑色灰度显示器中的发光元件来实现的，并且通过在每个像素中提供发光元件并在像素电路中提供单独控制照明和非点亮的功能 该发光元件根据灰度来执行显示。 当在每个像素中设置背光时，当显示黑色灰度时，作为背光的发光元件被关闭，由此可以防止由于来自液晶元件的光泄漏造成的对比度的降低。

    Display device
    4.
    发明授权
    Display device 有权
    显示设备

    公开(公告)号：US09189997B2

    公开(公告)日：2015-11-17

    申请号：US13443146

    申请日：2012-04-10

    申请人： Hajime Kimura ,  Yasunori Yoshida ,  Hideaki Shishido ,  Atsushi Umezaki ,  Makoto Yanagisawa ,  Shunpei Yamazaki

    发明人： Hajime Kimura ,  Yasunori Yoshida ,  Hideaki Shishido ,  Atsushi Umezaki ,  Makoto Yanagisawa ,  Shunpei Yamazaki

    IPC分类号： G09G3/36 ,  G09G3/32 ,  G09G3/34 ,  G02F1/1335 ,  G02F1/1362

    CPC分类号： G09G3/36 ,  G02F1/133603 ,  G02F1/1362 ,  G09G3/3208 ,  G09G3/3426 ,  G09G3/3648 ,  G09G2300/046 ,  G09G2320/0238 ,  G09G2320/062 ,  G09G2320/066 ,  G09G2330/021

    摘要： It is an object to provide a display device in which a problem of light leakage from a liquid crystal element in black display is reduced or overcome and the contrast is improved. It is another object to provide a pixel circuit having a function to control a lighting state of a backlight based on each pixel. These objects are achieved by turning off a light-emitting element in display of a black gray scale, and by providing a light-emitting element in each pixel and providing, in a pixel circuit, a function to individually control lighting and non-lighting of the light-emitting element depending on a gray scale to perform display. When a backlight is provided in each pixel, a light-emitting element that is a backlight is turned off when a black gray scale is displayed, whereby reduction in contrast due to light leakage from a liquid crystal element can be prevented.

    摘要翻译： 本发明的目的是提供一种显示装置，其中减少或克服了黑色显示器中的液晶元件的漏光问题，并提高了对比度。 另一个目的是提供一种具有基于每个像素来控制背光的点亮状态的功能的像素电路。 这些目的是通过关闭黑色灰度显示器中的发光元件来实现的，并且通过在每个像素中提供发光元件并在像素电路中提供单独控制照明和非点亮的功能 该发光元件根据灰度来执行显示。 当在每个像素中设置背光时，当显示黑色灰度时，作为背光的发光元件被关闭，由此可以防止由于来自液晶元件的光泄漏造成的对比度的降低。

    DISPLAY DEVICE
    5.
    发明申请
    DISPLAY DEVICE 审中-公开
    显示设备

    公开(公告)号：US20070109284A1

    公开(公告)日：2007-05-17

    申请号：US11462829

    申请日：2006-08-07

    申请人： Shunpei Yamazaki ,  Hajime Kimura ,  Atsushi Umezaki ,  Yasunori Yoshida ,  Hideaki Shishido ,  Takuya Kimishima ,  Yasuyuki Arai

    发明人： Shunpei Yamazaki ,  Hajime Kimura ,  Atsushi Umezaki ,  Yasunori Yoshida ,  Hideaki Shishido ,  Takuya Kimishima ,  Yasuyuki Arai

    IPC分类号： G09G5/00

    CPC分类号： G09G3/3233 ,  G09G3/006 ,  G09G3/20 ,  G09G3/2022 ,  G09G3/3225 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0272 ,  G09G2310/0275 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/046 ,  G09G2320/048 ,  G09G2330/022 ,  G09G2340/145

    摘要： In a display element such as an organic EL element, deterioration progresses due to light emission, and emission luminance is lowered even if the same voltage is applied to the display element. Therefore, use over time causes variations in luminance of each pixel, thereby a so-called “image burn-in” phenomenon occurs. Given this factor, the invention provides a display device which can reduce the difference in deterioration of a display element in each pixel and suppress variations in light emission of a display element in a pixel. It is prevented that only a specific pixel has a long accumulated lighting time. For that purpose, a gray scale of a display pattern is changed to prevent the difference in deterioration of display element in pixels from increasing. Alternatively, a specific display pattern is prevented from being fixedly displayed in a specific region. Further alternatively, a pixel lagging behind in deterioration is deteriorated so that the accumulated lighting time of pixels is equal to each other.

    摘要翻译： 在诸如有机EL元件的显示元件中，由于发光而劣化进行，并且即使对显示元件施加相同的电压，发光亮度也降低。 因此，随着时间的推移导致每个像素的亮度变化，从而发生所谓的“图像老化”现象。 鉴于这个因素，本发明提供一种能够减少每个像素中的显示元件的劣化差异并抑制像素中的显示元件的发光变化的显示装置。 防止只有特定像素具有长的累积点亮时间。 为此，改变显示图案的灰度级以防止显示元件在像素中的劣化的差异增加。 或者，防止特定显示图案被固定地显示在特定区域中。 此外，劣化后退的像素劣化，使得像素的累积点亮时间相等。

    Display device
    8.
    发明授权
    Display device 有权
    显示设备

    公开(公告)号：US07733315B2

    公开(公告)日：2010-06-08

    申请号：US10579987

    申请日：2005-12-02

    申请人： Yasunori Yoshida ,  Hajime Kimura ,  Shinji Maekawa ,  Osamu Nakamura ,  Shunpei Yamazaki

    发明人： Yasunori Yoshida ,  Hajime Kimura ,  Shinji Maekawa ,  Osamu Nakamura ,  Shunpei Yamazaki

    IPC分类号： G09G3/36

    CPC分类号： H01L27/156 ,  H01L21/288 ,  H01L21/76838 ,  H01L27/1285 ,  H01L27/1292 ,  H01L27/3248 ,  H01L27/3276

    摘要： The invention provides an active matrix EL display device which can perform a clear multi-gray scale color display. In particular, the invention provides a large active matrix EL display device at low cost by a manufacturing method which can selectively form a pattern. Power supply lines in a pixel portion are arranged in matrix by the manufacturing method which can selectively form a pattern. Further, capacitance between wirings is reduced by providing a longer distance between adjacent wirings by the manufacturing method which can selectively form a pattern.

    摘要翻译： 本发明提供一种能够执行清晰的多灰阶彩色显示的有源矩阵EL显示装置。 特别地，本发明通过可以选择性地形成图案的制造方法以低成本提供大的有源矩阵EL显示装置。 通过可以选择性地形成图案的制造方法将像素部分中的电源线布置成矩阵。 此外，通过可以选择性地形成图案的制造方法，通过在相邻布线之间提供更长的距离来减小布线之间的电容。

    Display Device
    9.
    发明申请
    Display Device 有权
    显示设备

    公开(公告)号：US20080246407A1

    公开(公告)日：2008-10-09

    申请号：US10579987

    申请日：2005-12-02

    申请人： Yasunori Yoshida ,  Hajime Kimura ,  Shinji Maekawa ,  Osamu Nakamura ,  Shunpei Yamazaki

    发明人： Yasunori Yoshida ,  Hajime Kimura ,  Shinji Maekawa ,  Osamu Nakamura ,  Shunpei Yamazaki

    IPC分类号： G09G3/12 ,  H01J9/00

    CPC分类号： H01L27/156 ,  H01L21/288 ,  H01L21/76838 ,  H01L27/1285 ,  H01L27/1292 ,  H01L27/3248 ,  H01L27/3276

    摘要： The invention provides an active matrix EL display device which can perform a clear multi-gray scale color display. In particular, the invention provides a large active matrix EL display device at low cost by a manufacturing method which can selectively form a pattern. Power supply lines in a pixel portion are arranged in matrix by the manufacturing method which can selectively form a pattern. Further, capacitance between wirings is reduced by providing a longer distance between adjacent wirings by the manufacturing method which can selectively form a pattern.

    摘要翻译： 本发明提供一种能够执行清晰的多灰阶彩色显示的有源矩阵EL显示装置。 特别地，本发明通过可以选择性地形成图案的制造方法以低成本提供大的有源矩阵EL显示装置。 通过可以选择性地形成图案的制造方法将像素部分中的电源线布置成矩阵。 此外，通过可以选择性地形成图案的制造方法，通过在相邻布线之间提供更长的距离来减小布线之间的电容。

    Display device and driving method thereof
    10.
    发明授权
    Display device and driving method thereof 有权
    显示装置及其驱动方法

    公开(公告)号：US08692740B2

    公开(公告)日：2014-04-08

    申请号：US11427242

    申请日：2006-06-28

    申请人： Yasunori Yoshida ,  Hajime Kimura ,  Shunpei Yamazaki

    发明人： Yasunori Yoshida ,  Hajime Kimura ,  Shunpei Yamazaki

    IPC分类号： G09G3/30

    CPC分类号： G09G3/3233 ,  G09G3/2022 ,  G09G2300/0452 ,  G09G2310/0251 ,  G09G2320/029 ,  G09G2330/10

    摘要： In an EL display device which performs area grayscale display, image quality is improved and stabilized. A plurality of subpixels each having light emitting elements which emit light of approximately the same color and a plurality of monitor pixels each having the same number of subpixels as the pixel are provided. The light emitting element in the monitor pixel is manufactured at the same time as the light emitting element in the pixel, and the electrode of the light emitting element in the monitor pixel is connected to a different constant current source in each subpixel. A circuit for changing a potential of the electrode of the light emitting element in the pixel for each subpixel in accordance with a potential change of the electrode of the light emitting element of the monitor pixel, thereby the aforementioned purposes are achieved.

    摘要翻译： 在执行区域灰度显示的EL显示装置中，图像质量得到改善和稳定。 设置有各自具有发射大致相同颜色的发光元件的多个子像素和具有与像素相同数量的子像素的多个监视像素。 监视像素中的发光元件与像素中的发光元件同时被制造，并且监视像素中的发光元件的电极连接到每个子像素中的不同恒定电流源。 根据监视像素的发光元件的电极的电位变化，改变每个子像素的像素中的发光元件的电极的电位的电路，从而实现上述目的。