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1. 发明授权

US08243006B2 Method and systems for improving performance in a field sequential color display 有权
标题翻译：用于提高现场顺序彩色显示性能的方法和系统
公开(公告)号：US08243006B2
公开(公告)日：2012-08-14
申请号：US11941661
申请日：2007-11-16
申请人： Kalluri R. Sarma , John F. L. Schmidt , Dennis M. Davey
发明人： Kalluri R. Sarma , John F. L. Schmidt , Dennis M. Davey
IPC分类号： G09G3/36
CPC分类号： G09G3/3413 , G09G3/3426 , G09G2310/0235 , G09G2310/0237 , G09G2320/0238 , G09G2320/0242 , G09G2320/064 , G09G2320/0646
摘要： Methods and systems for displaying an image on a display device having first and second light sources are provided. A video signal is provided to the display device. The video signal includes a plurality of frames, and each frame includes first and second sub-frames corresponding to the respective first and second light sources. The first light source is operated for a first duration during the first sub-frame of each of the plurality of frames. The second light source is operated for a second duration during the second sub-frame of each of the plurality of frames. The second duration is different than the first duration.
摘要翻译：提供了用于在具有第一和第二光源的显示装置上显示图像的方法和系统。视频信号被提供给显示装置。视频信号包括多个帧，并且每个帧包括对应于相应的第一和第二光源的第一和第二子帧。第一光源在多个帧中的每一个的第一子帧期间操作第一持续时间。第二光源在多个帧的每个帧的第二子帧期间操作第二持续时间。第二个持续时间与第一个持续时间不同。

2. 发明授权

US08400391B2 Method and system for improving dimming performance in a field sequential color display device 有权
标题翻译：用于改善场顺序彩色显示装置的调光性能的方法和系统
公开(公告)号：US08400391B2
公开(公告)日：2013-03-19
申请号：US11972199
申请日：2008-01-10
申请人： John Schmidt , Kalluri R. Sarma , Dennis M. Davey
发明人： John Schmidt , Kalluri R. Sarma , Dennis M. Davey
IPC分类号： G09G3/36
CPC分类号： G09G3/3413 , G09G3/2081 , G09G3/3426 , G09G2310/0235 , G09G2320/041 , G09G2320/064
摘要： Methods and systems for displaying an image on a display device having first and second light sources are provided. A video signal is provided to the display device. The video signal includes first and second video frames. Each video frame includes first and second sub-frames corresponding to the respective first and second light sources. The first light source is operated for a first duration during the first sub-frame of the first video frame. The first light source is operated for a second duration during the first sub-frame of the second video frame. The second duration is different from the first duration.
摘要翻译：提供了用于在具有第一和第二光源的显示装置上显示图像的方法和系统。视频信号被提供给显示装置。视频信号包括第一和第二视频帧。每个视频帧包括对应于相应的第一和第二光源的第一和第二子帧。第一光源在第一视频帧的第一子帧期间操作第一持续时间。第一光源在第二视频帧的第一子帧期间操作第二持续时间。第二个持续时间与第一个持续时间不同。

3. 发明申请

US20090128543A1 METHOD AND SYSTEMS FOR IMPROVING PERFORMANCE IN A FIELD SEQUENTIAL COLOR DISPLAY 有权
标题翻译：用于改善现场顺序色彩显示性能的方法和系统
公开(公告)号：US20090128543A1
公开(公告)日：2009-05-21
申请号：US11941661
申请日：2007-11-16
申请人： Kalluri R. Sarma , John F.L. Schmidt , Dennis M. Davey
发明人： Kalluri R. Sarma , John F.L. Schmidt , Dennis M. Davey
IPC分类号： G06F3/038
CPC分类号： G09G3/3413 , G09G3/3426 , G09G2310/0235 , G09G2310/0237 , G09G2320/0238 , G09G2320/0242 , G09G2320/064 , G09G2320/0646
摘要： Methods and systems for displaying an image on a display device having first and second light sources are provided. A video signal is provided to the display device. The video signal includes a plurality of frames, and each frame includes first and second sub-frames corresponding to the respective first and second light sources. The first light source is operated for a first duration during the first sub-frame of each of the plurality of frames. The second light source is operated for a second duration during the second sub-frame of each of the plurality of frames. The second duration is different than the first duration.
摘要翻译：提供了用于在具有第一和第二光源的显示装置上显示图像的方法和系统。视频信号被提供给显示装置。视频信号包括多个帧，并且每个帧包括对应于相应的第一和第二光源的第一和第二子帧。第一光源在多个帧中的每一个的第一子帧期间操作第一持续时间。第二光源在多个帧的每个帧的第二子帧期间操作第二持续时间。第二个持续时间与第一个持续时间不同。

4. 发明申请

US20090179848A1 METHOD AND SYSTEM FOR IMPROVING DIMMING PERFORMANCE IN A FIELD SEQUENTIAL COLOR DISPLAY DEVICE 有权
标题翻译：用于改善现场顺序颜色显示装置中的调色性能的方法和系统
公开(公告)号：US20090179848A1
公开(公告)日：2009-07-16
申请号：US11972199
申请日：2008-01-10
申请人： John Schmidt , Kalluri R. Sarma , Dennis M. Davey
发明人： John Schmidt , Kalluri R. Sarma , Dennis M. Davey
IPC分类号： G09G3/36 , H04N5/66
CPC分类号： G09G3/3413 , G09G3/2081 , G09G3/3426 , G09G2310/0235 , G09G2320/041 , G09G2320/064
摘要： Methods and systems for displaying an image on a display device having first and second light sources are provided. A video signal is provided to the display device. The video signal includes first and second video frames. Each video frame includes first and second sub-frames corresponding to the respective first and second light sources. The first light source is operated for a first duration during the first sub-frame of the first video frame. The first light source is operated for a second duration during the first sub-frame of the second video frame. The second duration is different from the first duration.
摘要翻译：提供了用于在具有第一和第二光源的显示装置上显示图像的方法和系统。视频信号被提供给显示装置。视频信号包括第一和第二视频帧。每个视频帧包括对应于相应的第一和第二光源的第一和第二子帧。第一光源在第一视频帧的第一子帧期间操作第一持续时间。第一光源在第二视频帧的第一子帧期间操作第二持续时间。第二个持续时间与第一个持续时间不同。

5. 发明申请

US20100302135A1 BACKLIGHT SYSTEMS FOR LIQUID CRYSTAL DISPLAYS 有权
标题翻译：液晶显示器背光系统
公开(公告)号：US20100302135A1
公开(公告)日：2010-12-02
申请号：US12847784
申请日：2010-07-30
申请人： Brent D. Larson , Dennis M. Davey , Elias S. Haim
发明人： Brent D. Larson , Dennis M. Davey , Elias S. Haim
IPC分类号： G09G3/36
CPC分类号： G02B6/0021 , G02B6/0018 , G02B6/003 , G02B6/0038 , G02B6/0068 , G02F1/133603
摘要： A backlight system for a liquid crystal display includes a substantially planar, refractive waveguide having a first major face and a second major face opposite the first major face. The waveguide includes a viewable region corresponding to a viewable area of the liquid crystal display. The system further includes a light source positioned proximate to the second major face and within the viewing region for producing light. An injection feature is proximate to one or more of the second major face and the first major face and within the viewing region to optically couple the light into the waveguide such that the light becomes waveguided light. A plurality of extraction features is proximate to one or more of the second major face and the first major face and within the viewing region to optically couple the waveguided light out of the waveguide.
摘要翻译：用于液晶显示器的背光系统包括具有第一主面和与第一主面相对的第二主面的基本上平面的折射波导。波导包括对应于液晶显示器的可视区域的可视区域。该系统还包括靠近第二主要面并位于观察区域内用于产生光的光源。注射特征靠近第二主面和第一主面中的一个或多个并且在观察区域内，以将光光学地耦合到波导中，使得光成为波导的光。多个提取特征靠近第二主面和第一主面中的一个或多个并且在观察区域内，以将波导光光学耦合到波导外。

6. 发明授权

US08248556B2 Backlight systems for liquid crystal displays 有权
标题翻译：用于液晶显示器的背光系统
公开(公告)号：US08248556B2
公开(公告)日：2012-08-21
申请号：US12847784
申请日：2010-07-30
申请人： Brent D. Larson , Dennis M. Davey , Elias S. Haim
发明人： Brent D. Larson , Dennis M. Davey , Elias S. Haim
IPC分类号： G02F1/1335
CPC分类号： G02B6/0021 , G02B6/0018 , G02B6/003 , G02B6/0038 , G02B6/0068 , G02F1/133603
摘要： A backlight system for a liquid crystal display includes a substantially planar, refractive waveguide having a first major face and a second major face opposite the first major face. The waveguide includes a viewable region corresponding to a viewable area of the liquid crystal display. The system further includes a light source positioned proximate to the second major face and within the viewing region for producing light. An injection feature is proximate to one or more of the second major face and the first major face and within the viewing region to optically couple the light into the waveguide such that the light becomes waveguided light. A plurality of extraction features is proximate to one or more of the second major face and the first major face and within the viewing region to optically couple the waveguided light out of the waveguide.
摘要翻译：用于液晶显示器的背光系统包括具有第一主面和与第一主面相对的第二主面的基本上平面的折射波导。波导包括对应于液晶显示器的可视区域的可视区域。该系统还包括靠近第二主要面并位于观察区域内用于产生光的光源。注射特征靠近第二主面和第一主面中的一个或多个并且在观察区域内，以将光光学地耦合到波导中，使得光成为波导的光。多个提取特征靠近第二主面和第一主面中的一个或多个并且在观察区域内，以将波导光光学耦合到波导外。

7. 发明授权

US07342577B2 Light emitting diode driving apparatus with high power and wide dimming range 有权
标题翻译：发光二极管驱动装置，功率大，调光范围宽
公开(公告)号：US07342577B2
公开(公告)日：2008-03-11
申请号：US11043226
申请日：2005-01-25
申请人： Mark A. Struebel , Eric D. Ronning , Dennis M. Davey
发明人： Mark A. Struebel , Eric D. Ronning , Dennis M. Davey
IPC分类号： G09G5/00 , G09G3/36
CPC分类号： H05B33/0815 , G09G3/3406 , G09G2320/0633 , G09G2360/144 , H05B33/0851 , Y02B20/346
摘要： Apparatus are provided for driving an LED light source and controlling a light output of the light source over a wide luminance range in response to a luminance input. The apparatus includes: a voltage source having an output configured to couple with the light source, a first input configured to receive the luminance input, and a second input; a photodetector unit configured to logarithmically compress the luminance range and determine a voltage based on a luminance of the light source in the compressed range; a comparator having an input coupled to the photodetector unit and having an output; and, a signal converter having an input coupled to the output of the comparator and having an output coupled to the second input of the voltage source. The voltage source is configured to generate an output signal at the output of the voltage source. The output signal has a frequency and a pulse width based on the luminance input. The comparator is configured to determine an error signal based on a comparison of the luminance input with the voltage. The converter is configured to exponentially convert the error signal to the frequency.
摘要翻译：提供了用于驱动LED光源并且响应于亮度输入在宽的亮度范围内控制光源的光输出的装置。该装置包括：具有配置成与光源耦合的输出的电压源，被配置为接收亮度输入的第一输入和第二输入; 光电检测器单元，被配置为对数压缩所述亮度范围，并且基于所述光源在所述压缩范围内的亮度来确定电压; 比较器，其具有耦合到所述光电检测器单元并具有输出的输入; 以及信号转换器，其具有耦合到所述比较器的输出并具有耦合到所述电压源的所述第二输入的输出的输入。电压源被配置为在电压源的输出处产生输出信号。输出信号具有基于亮度输入的频率和脉冲宽度。比较器被配置为基于亮度输入与电压的比较来确定误差信号。转换器被配置为将误差信号指数地转换为频率。

8. 发明授权

US07339332B2 Chroma compensated backlit display 有权
标题翻译：色度补偿背光显示
公开(公告)号：US07339332B2
公开(公告)日：2008-03-04
申请号：US10853484
申请日：2004-05-24
申请人： Brian D. Cull , Dennis M. Davey , Eric D. Ronning
发明人： Brian D. Cull , Dennis M. Davey , Eric D. Ronning
IPC分类号： H05B37/00
CPC分类号： G09G3/3413 , G02F1/133603 , G02F1/133606 , G09G2320/043 , G09G2320/0606 , G09G2320/0626 , G09G2320/0666
摘要： Methods and apparatus are provided for a backlit display with variable luminance and chrominance. The apparatus comprises i groups of LEDs of different colors and one or more sensors optically coupled to the LEDs. The combined light produced by the LEDs is directed to a transmissive liquid crystal display, preferably through a diffusing layer. The sensors monitor the output Si of each group of LEDs. Si for each group of LEDs is multiplied by a chrominance determining parameter Ki to obtain Ki*Si which is then compared to a commanded luminance signal LC to obtain LC−Ki*Si, which difference is used to adjust the drive current to each group of LEDs to achieve LC with the desired chrominance set by Ki. By changing Ki and LC the chrominance and luminescence of the display may be varied and aging effects compensated.
摘要翻译：为具有可变亮度和色度的背光显示器提供了方法和装置。该装置包括i组不同颜色的LED和一个或多个光学耦合到LED的传感器。由LED产生的组合光优选通过漫射层指向透射型液晶显示器。传感器监测每组LED的输出S SUB。对于每组LED来说，对于色度确定参数K i i来，将S i＆lt; i＆gt; i＆lt; i＆gt; i＆lt; i＆lt; i＆lt; i＆lt; i＆lt; >，然后将其与命令亮度信号L C C进行比较以获得L C i + ，该差异用于调整到每组LED的驱动电流以实现具有由K i i i设置的期望色度的L C C。通过改变显示器的色度和发光，可以改变K＆lt; i＆gt;和L＆gt; C＆lt; C＆gt;＆gt;可以补偿老化效应。

9. 发明授权

US07791683B2 Backlight systems for liquid crystal displays 有权
标题翻译：用于液晶显示器的背光系统
公开(公告)号：US07791683B2
公开(公告)日：2010-09-07
申请号：US11942398
申请日：2007-11-19
申请人： Brent D. Larson , Dennis M. Davey , Elias S. Haim
发明人： Brent D. Larson , Dennis M. Davey , Elias S. Haim
IPC分类号： G02F1/1335
CPC分类号： G02B6/0021 , G02B6/0018 , G02B6/003 , G02B6/0038 , G02B6/0068 , G02F1/133603
摘要： A backlight system for a liquid crystal display includes a substantially planar, refractive waveguide having a first major face and a second major face opposite the first major face. The waveguide includes a viewable region corresponding to a viewable area of the liquid crystal display. The system further includes a light source positioned proximate to the second major face and within the viewing region for producing light. An injection feature is proximate to one or more of the second major face and the first major face and within the viewing region to optically couple the light into the waveguide such that the light becomes waveguided light. A plurality of extraction features is proximate to one or more of the second major face and the first major face and within the viewing region to optically couple the waveguided light out of the waveguide.
摘要翻译：用于液晶显示器的背光系统包括具有第一主面和与第一主面相对的第二主面的基本上平面的折射波导。波导包括对应于液晶显示器的可视区域的可视区域。该系统还包括靠近第二主要面并位于观察区域内用于产生光的光源。注射特征靠近第二主面和第一主面中的一个或多个并且在观察区域内，以将光光学地耦合到波导中，使得光成为波导的光。多个提取特征靠近第二主面和第一主面中的一个或多个并且在观察区域内，以将波导光光学耦合到波导外。

10. 发明申请

US20090128735A1 BACKLIGHT SYSTEMS FOR LIQUID CRYSTAL DISPLAYS 有权
标题翻译：液晶显示器背光系统
公开(公告)号：US20090128735A1
公开(公告)日：2009-05-21
申请号：US11942398
申请日：2007-11-19
申请人： Brent D. Larson , Dennis M. Davey , Elias S. Haim
发明人： Brent D. Larson , Dennis M. Davey , Elias S. Haim
IPC分类号： G02F1/1335 , F21V5/00
CPC分类号： G02B6/0021 , G02B6/0018 , G02B6/003 , G02B6/0038 , G02B6/0068 , G02F1/133603
摘要： A backlight system for a liquid crystal display includes a substantially planar, refractive waveguide having a first major face and a second major face opposite the first major face. The waveguide includes a viewable region corresponding to a viewable area of the liquid crystal display. The system further includes a light source positioned proximate to the second major face and within the viewing region for producing light. An injection feature is proximate to one or more of the second major face and the first major face and within the viewing region to optically couple the light into the waveguide such that the light becomes waveguided light. A plurality of extraction features is proximate to one or more of the second major face and the first major face and within the viewing region to optically couple the waveguided light out of the waveguide.
摘要翻译：用于液晶显示器的背光系统包括具有第一主面和与第一主面相对的第二主面的基本上平面的折射波导。波导包括对应于液晶显示器的可视区域的可视区域。该系统还包括靠近第二主要面并位于观察区域内用于产生光的光源。注射特征靠近第二主面和第一主面中的一个或多个并且在观察区域内，以将光光学地耦合到波导中，使得光成为波导的光。多个提取特征靠近第二主面和第一主面中的一个或多个并且在观察区域内，以将波导光光学耦合到波导外。

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