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1. 发明授权

US06894436B2 Drive method of light-emitting display panel and organic EL display device 失效
标题翻译：发光显示面板和有机EL显示装置的驱动方法
公开(公告)号：US06894436B2
公开(公告)日：2005-05-17
申请号：US10252690
申请日：2002-09-24
申请人： Masato Togashi , Daisuke Fujita , Koji Henmi , Naoki Yazawa , Gen Suzuki , Keisuke Moriya
发明人： Masato Togashi , Daisuke Fujita , Koji Henmi , Naoki Yazawa , Gen Suzuki , Keisuke Moriya
IPC分类号： H01L51/50 , G09G3/20 , G09G3/30 , G09G3/32 , G09G3/10 , G09G3/34
CPC分类号： G09G3/3216 , G09G3/3266 , G09G2310/0251 , G09G2310/0256 , G09G2320/0209 , G09G2320/0606 , G09G2320/0626 , G09G2330/02 , G09G2330/028
摘要： In a drive method of a light-emitting display panel capable of emitting light in low luminance, the parasitic capacitances of the light-emitting elements disposed in the light-emitting display panel are precharged making use of a reverse bias voltage before they are lit. In this case, a reverse bias voltage created by a reverse bias voltage creation circuit or a peak current being precharged is controlled by selectively grounding control terminals based on dimmer control. In particular, when the light-emitting elements are emitted in low luminance, the reverse bias voltage is output in a low level, thereby the light-emitting elements are prevented from being precharged with an excessive voltage. The above arrangement can realize light emission control in low luminance.
摘要翻译：在能够以低亮度发光的发光显示面板的驱动方式中，配置在发光显示面板中的发光元件的寄生电容在点亮之前利用反向偏置电压进行预充电。在这种情况下，通过基于调光器控制选择性地接地控制端子来控制由反向偏置电压产生电路产生的反向偏置电压或预充电的峰值电流。特别地，当以低亮度发射发光元件时，将反向偏压输出为低电平，从而防止发光元件被过电压预充电。上述配置可以实现低亮度的发光控制。

2. 发明授权

US07154492B2 Device for and method of driving luminescent display panel 失效
标题翻译：发光显示面板的装置及其方法
公开(公告)号：US07154492B2
公开(公告)日：2006-12-26
申请号：US10645669
申请日：2003-08-22
申请人： Koji Henmi , Naoki Yazawa
发明人： Koji Henmi , Naoki Yazawa
IPC分类号： G09G5/10 , G09G5/00
CPC分类号： G09G3/3216 , G09G3/2022 , G09G2300/0814 , G09G2300/0842 , G09G2310/0256 , G09G2320/029 , G09G2320/041 , G09G2320/043 , G09G2330/028 , G09G2360/145
摘要： Provided is a driving device that enables compensating for the decrease in luminance characteristic due to the aging of an EL display panel. On a transparent substrate 11 made of, for example, glass, there are lamination-formed a number of luminescent elements 20. By this, a light from the luminescent element is radiated, via the transparent substrate, in a direction of its intersecting a substrate surface thereof, thereby a display image is formed. The driving device is equipped with photo-electric conversion means 23 that, when receiving part of the light from the luminescent element 20 that, by using as the interface a substrate surface of the transparent substrate 11 or a substrate surface of a light-guiding substrate 72 disposed on the transparent substrate 1 in a laminated state, is reflected within the substrate, produces an electric signal, as well as drive power setting means 25 that sets a luminescent drive power that is supplied to each of the luminescent elements. By this construction, it is possible to compensate for the decrease in luminance characteristic due to, for example, the aging of the luminescent element 20.
摘要翻译：提供了能够补偿由于EL显示面板的老化引起的亮度特性的降低的驱动装置。在由例如玻璃制成的透明基板11上层叠形成多个发光元件20。由此，来自发光元件的光经由透明基板沿与其基板表面相交的方向被辐射，从而形成显示图像。驱动装置配备有光电转换装置23，当从发光元件20接收部分光时，通过使用透明基板11的基板表面或导光基板的基板表面作为界面以层叠状态设置在透明基板1上的反射镜72在基板内被反射，产生电信号，以及驱动功率设定装置25，其设置提供给每个发光元件的发光驱动功率。通过这种结构，可以补偿由于例如发光元件20的老化引起的亮度特性的降低。

3. 发明授权

US07119768B2 Apparatus and method for driving luminescent display panel 有权
公开(公告)号：US07119768B2
公开(公告)日：2006-10-10
申请号：US10211380
申请日：2002-08-05
申请人： Naoki Yazawa , Koji Henmi , Gen Suzuki , Keisuke Moriya , Takeshi Okuyama
发明人： Naoki Yazawa , Koji Henmi , Gen Suzuki , Keisuke Moriya , Takeshi Okuyama
IPC分类号： G09G3/30 , G09G5/00 , G09G3/10 , G09G5/10
CPC分类号： G09G3/3216 , G09G3/3266 , G09G3/3283 , G09G2310/0256 , G09G2320/029 , G09G2320/041 , G09G2320/043 , G09G2330/02
摘要： In an apparatus for driving a luminescent display panel, in a state in which scanning lines are sequentially scanned to drive and illuminate light-emitting elements, a voltage peak value arising in a scanning line in a non-scanning state is held by a capacitor through parasitic capacitance of the light-emitting element in a non-scanning state. On the basis of the voltage value held by the capacitor, a reverse bias voltage to be output from a reverse bias voltage generation circuit is controlled, and the voltage is supplied to the scanning lines.

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