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1. 发明授权

US08102360B2 Methods and apparatus of dynamic backlight control 有权
标题翻译：动态背光控制的方法和装置
公开(公告)号：US08102360B2
公开(公告)日：2012-01-24
申请号：US12116739
申请日：2008-05-07
申请人： Wing Chi Stephen Chan , Wai Pak Icarus Choi , Wai-Yan Stephen Lai
发明人： Wing Chi Stephen Chan , Wai Pak Icarus Choi , Wai-Yan Stephen Lai
IPC分类号： G09G3/36
CPC分类号： G09G3/3406 , G09G2320/0646 , G09G2330/021 , G09G2360/16
摘要： A method of adjusting image intensity to compensate backlight dimming in dynamic backlight control, the method including estimating distortion of an image that corresponds to different mapping index values 204 selected from the intensity levels 202 of an image. The estimated distortion of image represents factors including the quantity of pixels 205 that have intensity exceeding a mapping index value 204; and the amount 206 that the intensity of each pixel exceeds the corresponding mapping index value. The method further includes selecting from a plurality of schemes 301 for adjusting image intensity to minimize the estimated distortion obtained from the estimating.
摘要翻译：一种调整图像强度以补偿动态背光控制中的背光调光的方法，所述方法包括估计对应于从图像的强度级202选择的不同映射索引值204的图像的失真。图像的估计失真表示包括强度超过映射指标值204的像素205的数量的因素; 以及每个像素的强度超过相应的映射索引值的量206。该方法还包括从多个方案301中选择用于调整图像强度以最小化从估计获得的估计失真。

2. 发明申请

US20090278786A1 Methods and Apparatus of Dynamic Backlight Control 有权
标题翻译：动态背光控制的方法与装置
公开(公告)号：US20090278786A1
公开(公告)日：2009-11-12
申请号：US12116739
申请日：2008-05-07
申请人： Wing Chi Chan , Wai Pak Choi , Wai-Yan Stephen Lai
发明人： Wing Chi Chan , Wai Pak Choi , Wai-Yan Stephen Lai
IPC分类号： G09G3/36
CPC分类号： G09G3/3406 , G09G2320/0646 , G09G2330/021 , G09G2360/16
摘要： A method of adjusting image intensity to compensate backlight dimming in dynamic backlight control, the method including estimating distortion of an image that corresponds to different mapping index values 204 selected from the intensity levels 202 of an image. The estimated distortion of image represents factors including the quantity of pixels 205 that have intensity exceeding a mapping index value 204; and the amount 206 that the intensity of each pixel exceeds the corresponding mapping index value. The method further includes selecting from a plurality of schemes 301 for adjusting image intensity to minimize the estimated distortion obtained from the estimating.
摘要翻译：一种调整图像强度以补偿动态背光控制中的背光调光的方法，所述方法包括估计对应于从图像的强度级202选择的不同映射索引值204的图像的失真。图像的估计失真表示包括强度超过映射指标值204的像素205的数量的因素; 以及每个像素的强度超过相应的映射索引值的量206。该方法还包括从多个方案301中选择用于调整图像强度以最小化从估计获得的估计失真。

3. 发明授权

US07151550B2 OLED driver circuit with selectable LCD controller interface and drive strength 有权
标题翻译： OLED驱动电路采用可选LCD控制器接口和驱动强度
公开(公告)号：US07151550B2
公开(公告)日：2006-12-19
申请号：US10698442
申请日：2003-11-03
申请人： Yuen Pat Lau , Wai-Yan Stephen Lai , Yiu Sang Lei , Chung Yee Ng , Jimmy Chiu
发明人： Yuen Pat Lau , Wai-Yan Stephen Lai , Yiu Sang Lei , Chung Yee Ng , Jimmy Chiu
IPC分类号： G09G5/02
CPC分类号： G09G3/20 , G09G3/2014 , G09G3/3216 , G09G3/3611 , G09G2370/08
摘要： The present invention provides a display system comprising a liquid crystal display (LCD) controller and an organic light emitting diode (OLED) driver circuit. The LCD controller can be a mono super twisted nematic (STN) and gray scale and color thin film transistor (TFT) controller. The LCD controller processes general format data and accordingly generates segment control signals and common control signals. The OLED driver circuit according to a general embodiment of the display system of the present invention comprises an OLED segment driver with a corresponding segment interface adopter processing the segment control signals from the LCD controller, and an OLED common driver with a corresponding common interface adopter processing the common control signals from the LCD controller. According to a further embodiment, the display system further comprises a drive strength selector controlling the drive strength in the OLED segment driver. The display system according to the present invention can also include a drive strength selector controlling the drive strength in the OLED common driver.
摘要翻译：本发明提供一种显示系统，包括液晶显示器（LCD）控制器和有机发光二极管（OLED）驱动电路。 LCD控制器可以是单声道超扭曲向列（STN）和灰度级和彩色薄膜晶体管（TFT）控制器。 LCD控制器处理通用格式数据，因此产生段控制信号和公共控制信号。根据本发明的显示系统的一般实施例的OLED驱动器电路包括具有相应的段接口采用器的OLED段驱动器，其处理来自LCD控制器的段控制信号，以及具有对应的公共接口采用器处理的OLED公共驱动器来自LCD控制器的通用控制信号。根据另一实施例，显示系统还包括控制OLED段驱动器中的驱动强度的驱动强度选择器。根据本发明的显示系统还可以包括控制OLED公共驱动器中的驱动强度的驱动强度选择器。

4. 发明授权

US07333078B2 Driving system and method for electroluminescence displays 有权
标题翻译：电致发光显示器的驱动系统和方法
公开(公告)号：US07333078B2
公开(公告)日：2008-02-19
申请号：US10746559
申请日：2003-12-29
申请人： Wai-Yan Stephen Lai , Chung Yee Ricky Ng , Wai Yu Wong
发明人： Wai-Yan Stephen Lai , Chung Yee Ricky Ng , Wai Yu Wong
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。

5. 发明授权

US06501226B2 Driving system and method for electroluminescence display 有权
标题翻译：用于电致发光显示的驱动系统和方法
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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