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公开(公告)号：US07333078B2
公开(公告)日：2008-02-19
申请号：US10746559
申请日：2003-12-29
IPC分类号： G09G3/30
CPC分类号： G09G3/3216 , G09G3/3266 , G09G3/3283 , G09G2310/0248 , G09G2320/0209 , G09G2320/0233
摘要： A driving system and method for electroluminescence displays having a matrix of electroluminescence elements arrayed in rows and columns with a control circuit for discharging each anode line to a column equalization bus (CEB), includes connecting the charged anode line to the CEB at the end of activation of each anode line. Discharging and subsequent de-activation of the anode line are allowed by charge-sharing with un-activated anode lines that are to be activated for the next row. This is accomplished by connecting the charged anode line to the CEB. In displaying images, anode lines are activated for a number of time periods according to gray scale or color data. Anode lines are consequently de-activated accordingly at different times during a lighting phase for each row display time. When anode lines are discharged through charge sharing on the CEB, a control circuit maintains the voltage on the CEB below a level that may cause inadvertent activation of the de-activated elements.
摘要翻译： 一种用于电致发光显示器的驱动系统和方法，其具有排列成行和列的电致发光元件的矩阵，具有用于将每个阳极线放电到列均衡总线（CEB）的控制电路，包括将带电的阳极线连接到CEB的末端 每个阳极线的激活。 通过与要激活的下一行的未激活的阳极线进行电荷共享，允许阳极线的放电和随后的去激活。 这是通过将充电的阳极线连接到CEB来实现的。 在显示图像时，阳极线根据灰度级或颜色数据激活多个时间段。 因此，在每个行显示时间的点亮阶段期间，阳极线相应地在不同的时间被去激活。 当阳极线通过CEB上的电荷共享放电时，控制电路将CEB上的电压维持在可能导致去激活元件的无意激活的水平以下。
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公开(公告)号：US06501226B2
公开(公告)日：2002-12-31
申请号：US09782480
申请日：2001-02-12
申请人： Wai-Yan Stephen Lai , Wah Chi Raymond Wang , Hing Kau Stephen Cheung , Wai Yu Felix Wong , Chung Yee Ricky Ng
发明人： Wai-Yan Stephen Lai , Wah Chi Raymond Wang , Hing Kau Stephen Cheung , Wai Yu Felix Wong , Chung Yee Ricky Ng
IPC分类号： G09G330
CPC分类号： G09G3/3216 , G09G3/3266 , G09G3/3283 , G09G2310/0251 , G09G2320/0209 , G09G2320/0219 , G09G2330/023
摘要： A driving system and its corresponding driving scheme for electroluminescence displays that employs the principle of electric charge conservation and recycling in order to reduce switching current requirement against the system power source. In an electroluminescence display of a matrix of electroluminescence elements arrayed in rows and columns, wherein anodes of the electroluminescence elements on each row being electrically connected to a corresponding anode line, and cathodes of the electroluminescence elements on each column being electrically connected to a corresponding cathode line, a driving system for driving said electroluminescence display comprises a row/column control circuit for lighting at least one of said electroluminescence elements by establishing an electrical route across the power source and the ground in a driving scheme. The driving scheme sequentially scans each of the cathode lines while simultaneously drives at least one of the anode lines during each scanning. The control circuit equalizes electric charges in electroluminescence elements in the cathode line being scanned and in an adjoining cathode line to be scanned subsequently by electrically connecting both cathode lines together before the scanning cycles to the adjoining cathode line.
摘要翻译： 驱动系统及其相应的电致发光显示器驱动方案采用电荷保存和循环的原理，以减少对系统电源的开关电流需求。 在排列成行和列的电致发光元件的矩阵的电致发光显示器中，其中每行上的电致发光元件的阳极电连接到相应的阳极线，并且每列上的电致发光元件的阴极电连接到相应的阴极 用于驱动所述电致发光显示器的驱动系统包括用于通过在驱动方案中跨越电源和地面建立电路径来照亮至少一个所述电致发光元件的行/列控制电路。 驱动方案顺序地扫描每条阴极线，同时在每次扫描期间驱动至少一条阳极线。 控制电路使扫描阴极线中的电致发光元件中的电荷和在扫描周期之前将两个阴极线电连接到邻接的阴极线上的邻接的阴极线之间均匀化。
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3.发明授权Method and apparatus for applying adaptive precharge to an electroluminescence display 有权将自适应预充电应用于电致发光显示器的方法和装置公开(公告)号：US07400098B2
公开(公告)日：2008-07-15
申请号：US10747224
申请日：2003-12-30
IPC分类号： G09G3/10
CPC分类号： G09G3/3216 , G09G3/3283 , G09G2310/0248
摘要： According to the present invention, a display driver includes a voltage and current source that drive pixels and compensate for parasitic voltage to produce row pixels having intensities that are relatively uncorrelated to the number of “ON” pixels in a given row. The voltage source that provides the pre-charge for each pixel includes a constant value and a compensation voltage determined based on the number of “ON” pixels in each row. The compensation voltage is also determined based on the characteristics of the diodes associated with each pixel and the resistance associated the common ground of each row.
摘要翻译： 根据本发明，显示驱动器包括驱动像素并补偿寄生电压以产生具有与给定行中的“ON”像素的数量相对不相关的强度的行像素的电压和电流源。 为每个像素提供预充电的电压源包括恒定值和基于每一行中的“ON”像素数确定的补偿电压。 补偿电压还根据与每个像素相关联的二极管的特性以及与每行的公共地相关联的电阻来确定。
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公开(公告)号：US6023256A
公开(公告)日：2000-02-08
申请号：US856617
申请日：1997-05-13
CPC分类号： G09G3/3611 , G09G2310/0221 , G09G2330/02 , G09G2330/021 , G09G5/39
摘要： An LCD Driver System (10) includes a row decoder (38) for providing command signals to row drivers (50) and a RAM row decoder (64) for controlling a RAM (76) which supplies data to a column driver (88). The row and column drivers (50 and 88) are supplied with power by a power source (58) which can supply either high or low voltages. In normal mode, the power source (58) supplies high voltage and the row driver (50) drives both a dot matrix portion (14) and an icon portion (16) of an LCD display. In an icon mode, a disable signal disables the row decoder (38) and the RAM row decoder (64), enables only the icon row driver (54) of the row drivers (50) and the icon row of the RAM (76) and switches the power source (58) to supply low voltage so as to save power.
摘要翻译： LCD驱动器系统（10）包括用于向行驱动器（50）提供命令信号的行解码器（38）和用于控制向列驱动器（88）提供数据的RAM（76）的RAM行解码器（64）。 行和列驱动器（50和88）由能够提供高电压或低电压的电源（58）供电。 在正常模式下，电源（58）提供高电压，行驱动器（50）驱动LCD显示器的点阵部分（14）和图标部分（16）。 在图标模式中，禁用信号禁止行解码器（38）和RAM行解码器（64），仅使得行驱动器（50）的图标行驱动器（54）和RAM（76）的图标行 并且切换电源（58）以提供低电压以节省功率。
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