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1. 发明申请

WO2007125451A1 METHOD FOR CONTROLLING A BACKLIGHT OF A DISPLAY PANEL 审中-公开
标题翻译：控制显示面板背光的方法
公开(公告)号：WO2007125451A1
公开(公告)日：2007-11-08
申请号：PCT/IB2007/051349
申请日：2007-04-16
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , GROOT HULZE, Hendrikus, W. , DE GREEF, Petrus, M.
发明人： GROOT HULZE, Hendrikus, W. , DE GREEF, Petrus, M.
IPC分类号： G09G3/34
CPC分类号： G09G3/3406 , G09G2310/0237 , G09G2320/0257
摘要： The present invention relates to a method for controlling a backlight (102) of a display panel (101), comprising generating a control signal (107) with a primary pulse arrangement (200) and a secondary pulse arrangement (201; 401; 402) per frame, and activating said backlight in accordance with said control signal. The control signal is chosen such that the first harmonic (301) of the secondary pulse arrangement essentially cancels out the first harmonic (300) of the primary pulse arrangement, and the primary and secondary pulse arrangements have different shapes. By thus activating the backlight two times per frame, there will be a reduction of flickering as compared to typical backlighting methods, while at the same time it is possible to reduce motion blur artifacts, such as for example in the form of ghost images. The present invention also relates to a display unit comprising means for performing such a method.
摘要翻译：本发明涉及一种用于控制显示面板（101）的背光（102）的方法，包括：生成具有主脉冲排列（200）和次脉冲排列（201; 401; 402）的控制信号（107）并且根据所述控制信号激活所述背光。控制信号被选择为使得次级脉冲装置的第一谐波（301）基本上抵消了初级脉冲装置的一次谐波（300），并且初级和次级脉冲装置具有不同的形状。通过这样每帧启动背光两次，与典型的背光方法相比，将会减少闪烁，同时可以减少运动模糊伪像，例如以虚像的形式。本发明还涉及一种显示单元，其包括用于执行这种方法的装置。

2. 发明申请

WO2005104079A1 ENHANCED OVERDRIVE FOR DISPLAYS 审中-公开
标题翻译：增强展示显示
公开(公告)号：WO2005104079A1
公开(公告)日：2005-11-03
申请号：PCT/IB2005/051195
申请日：2005-04-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN WOUDENBERG, Roel , GROOT HULZE, Hendrikus, W.
发明人： VAN WOUDENBERG, Roel , GROOT HULZE, Hendrikus, W.
IPC分类号： G09G3/36
CPC分类号： G09G3/3611 , G09G2320/0252 , G09G2320/0257 , G09G2320/0261 , G09G2340/16
摘要： The invention relates to a driver (4) for driving a pixel (3) of a display panel (2). The driver (4) comprises a signal processor (5) which supplies a drive voltage (V) to the pixel (3) of the display panel (2) in response to an input signal (L). The input signal (L) represents the desired luminance (Ld) of the pixel during an addressing period (TP). When a luminance change of the pixel is requested during an addressing period (TP), the supplied drive voltage (V) is adapted to obtain an average luminance in the addressing period (TP) which is substantially equal to the desired luminance (Ld) during that addressing period (TP). The luminance, perceived by a viewer, during the addressing period (TP) during which a luminance change is requested is now equal to the desired luminance (Ld), reducing blurred edges and ghost images.
摘要翻译：本发明涉及一种用于驱动显示面板（2）的像素（3）的驱动器（4）。驱动器（4）包括响应于输入信号（L）向显示面板（2）的像素（3）提供驱动电压（V）的信号处理器（5）。输入信号（L）表示在寻址周期（TP）期间的像素的期望亮度（Ld）。当在寻址周期（TP）期间请求像素的亮度变化时，提供的驱动电压（V）适于在寻址周期（TP）期间获得基本上等于期望亮度（Ld）的平均亮度那个寻址期（TP）。在寻求亮度变化的寻址周期（TP）期间，由观看者感知的亮度现在等于期望的亮度（Ld），减少模糊边缘和重影图像。

3. 发明申请

WO2003107654A1 CONTROL CIRCUIT AND METHOD FOR CONTROLLING AN ELECTRICAL SIGNAL OVER A LOAD SUCH AS A DEFLECTION CIRCUIT OF A CATHODE RAY TUBE 审中-公开
标题翻译：用于控制电荷信号的控制电路和方法作为阴极射线管的偏转电路
公开(公告)号：WO2003107654A1
公开(公告)日：2003-12-24
申请号：PCT/IB2003/002332
申请日：2003-05-27
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VERHEES, Johannes, L., M. , GROOT HULZE, Hendrikus, W. , KOVACEVIC, Vedran
发明人： VERHEES, Johannes, L., M. , GROOT HULZE, Hendrikus, W. , KOVACEVIC, Vedran
IPC分类号： H04N3/185
CPC分类号： H04N3/185
摘要： The invention relates to a control circuit (2) for controlling an electrical signal (4) over a load (6) such as a deflection circuit of a Cathode Ray Tube, comprising a first transistor (8) for switching the electrical signal (4) over the load (6), wherein the load (6) is coupled to a collector (10) and an emitter (12) of the first transistor (8), and wherein the control circuit (2) also comprises a resonance circuit (14) which is coupled to a basis (16) and the emitter (12) of the first transistor (8) for driving the first transistor (8), a power supply (18) which is coupled to the resonance circuit (14) for driving the resonance circuit (14), a pulse generating circuit (20) which is coupled to the power supply (18) and the resonance circuit (14), and a processing unit (24) with a memory unit (26). Furthermore the invention relates to a method for adjusting a control circuit according to the invention.
摘要翻译：本发明涉及一种用于控制诸如阴极射线管的偏转电路之类的负载（6）上的电信号（4）的控制电路（2），包括用于切换电信号（4）的第一晶体管（8）在负载（6）上，其中所述负载（6）耦合到所述第一晶体管（8）的集电极（10）和发射极（12），并且其中所述控制电路（2）还包括谐振电路（14）），其耦合到用于驱动第一晶体管（8）的第一晶体管（8）的基极（16）和发射极（12）;耦合到谐振电路（14）的电源（18），用于驱动谐振电路（14），耦合到电源（18）和谐振电路（14）的脉冲发生电路（20）以及具有存储单元（26）的处理单元（24）。此外，本发明涉及一种用于调整根据本发明的控制电路的方法。

4. 发明申请

WO2006070323A1 SCANNING BACKLIGHT FOR LCD 审中-公开
标题翻译：扫描背光用于LCD
公开(公告)号：WO2006070323A1
公开(公告)日：2006-07-06
申请号：PCT/IB2005/054377
申请日：2005-12-22
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN WOUDENBERG, Roel , GROOT HULZE, Hendrikus, W. , STESSEN, Jeroen, H., C., J. , SEVO, Aleksandar , HEKSTRA, Gerben, J. , BLANKERS, Hendrik, J. , KOVACEVIC, Vedran , DEN BREEJEN, Jeroen
发明人： VAN WOUDENBERG, Roel , GROOT HULZE, Hendrikus, W. , STESSEN, Jeroen, H., C., J. , SEVO, Aleksandar , HEKSTRA, Gerben, J. , BLANKERS, Hendrik, J. , KOVACEVIC, Vedran , DEN BREEJEN, Jeroen
IPC分类号： G09G3/34
CPC分类号： G09G3/342 , G09G2310/024 , G09G2320/0247 , G09G2320/0261 , G09G2320/062 , G09G2320/0633 , G09G2320/064 , G09G2320/106
摘要： A method for displaying images on a display having backlight is disclosed, where the images is updated periodically with a period. The method comprises the steps of: generating a signal with a pulse pattern for each period depending on the contents of an image to be displayed in that period; and activating backlight in accordance with the signal. Further, a display (100) comprising a display panel (102) and a backlight unit, wherein the backlight unit comprises a controller (104) and a lighting device is disclosed. The controller (104) is arranged to generate a control signal, and the lighting device is arranged to provide backlight to the display panel (102) according to the control signal, wherein the control signal comprises a pulse pattern depending on contents of displayed images.
摘要翻译：公开了一种在具有背光的显示器上显示图像的方法，其中以周期周期性地更新图像。该方法包括以下步骤：根据在该周期中要显示的图像的内容，为每个周期产生具有脉冲图案的信号; 并根据信号激活背光。此外，包括显示面板（102）和背光单元的显示器（100），其中所述背光单元包括控制器（104）和照明装置。控制器（104）被布置为产生控制信号，并且照明装置被布置为根据控制信号向显示面板（102）提供背光，其中控制信号包括取决于所显示图像的内容的脉冲图案。

5. 发明申请

WO2006103611A3 SCANNING BACKLIGHT LCD PANEL WITH OPTIMIZED LAMP SEGMENTATION AND TIMING 审中-公开
公开(公告)号：WO2006103611A3
公开(公告)日：2006-10-05
申请号：PCT/IB2006/050913
申请日：2006-03-24
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , GROOT HULZE, Hendrikus, W.
发明人： GROOT HULZE, Hendrikus, W.
IPC分类号： G09G3/34
摘要： A liquid crystal display (1100) is disclosed, comprising a liquid crystal display panel (1102), a backlight unit, and a controller (1104, 1200, 1300). The liquid crystal display panel (1102) comprises a plurality of picture elements, wherein said picture elements are refreshed repeatedly, said backlight unit comprises a plurality of lighting devices (1105) each associated with a section of the display panel (1102) and arranged to provide backlighting to said section of the display panel (1102), and said controller (1104, 1200, 1300) is arranged to control timing, between refresh of picture elements and said backlighting by the lighting device corresponding to the section of the picture elements to be refreshed, in dependence on a position of the section associated with said corresponding lighting device. The controller comprises a backlighting controller for each of said sections, which backlighting controller is arranged to control backlighting timing depending on said position of said each section, wherein said control of backlighting timing comprises an advance, related to a refresh timing of corresponding picture elements, of backlighting timing for sections at a first end of said display panel, and a delay, related to a refresh timing of corresponding picture elements, of backlighting timing at a section at a second end opposite to said first end of said display panel (1102). Further, a method for displaying images on such a display is disclosed.

6. 发明申请

WO2006025020A1 DISPLAY PIXEL INVERSION SCHEME 审中-公开
标题翻译：显示像素反相方案
公开(公告)号：WO2006025020A1
公开(公告)日：2006-03-09
申请号：PCT/IB2005/052836
申请日：2005-08-30
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN WOUDENBERG, Roel , GROOT HULZE, Hendrikus, W. , HEKSTRA, Gerben, J. , VAN GORKOM, Ramon, P. , WUBBEN, Robertus, H., M.
发明人： VAN WOUDENBERG, Roel , GROOT HULZE, Hendrikus, W. , HEKSTRA, Gerben, J. , VAN GORKOM, Ramon, P. , WUBBEN, Robertus, H., M.
IPC分类号： G09G3/36
CPC分类号： G09G3/3614 , G09G2320/0204 , G09G2320/0247
摘要： A display device (500) having a plurality of picture cells (502) is controlled by adding a phase change to the regular cyclic inversion scheme. Thereby, it is possible to overcome the drawbacks of DC build-up due to, e.g., de-interlaced images and images comprising rotating symbols and "ticker tape". The control involves receiving an image signal comprising image data relating to the picture cells. A respective electric field across each picture cell is controlled, in dependence on at least the image data, according to a first polarity inversion scheme where the polarity of the electric field is such that polarity inversion occurs at regular intervals, and according to a second polarity inversion scheme concurrent with said first polarity inversion scheme, where the polarity of the electric field such that polarity inversion occurs at pseudo-random intervals.
摘要翻译：具有多个图像单元（502）的显示装置（500）通过向常规循环倒置方案添加相位变化来控制。因此，可以克服由于例如去隔行图像和包括旋转符号和“行话带”的图像的DC积聚的缺点。控制涉及接收包括与图像单元有关的图像数据的图像信号。根据第一极性反转方案，根据至少图像数据来控制每个图像单元上的相应电场，其中电场的极性使得极性反转以规则的间隔发生，并且根据第二极性反转方案与所述第一极性反转方案并行，其中电场的极性使得极性反转以伪随机间隔发生。

7. 发明申请

WO2007036851A3 DYNAMIC SOFTCLIPPING OF VIDEO LEVELS 审中-公开
公开(公告)号：WO2007036851A3
公开(公告)日：2007-04-05
申请号：PCT/IB2006/053412
申请日：2006-09-21
申请人： NXP B.V. , DEN BREEJEN, Jeroen , GROOT HULZE, Hendrikus, W.
发明人： DEN BREEJEN, Jeroen , GROOT HULZE, Hendrikus, W.
IPC分类号： H04N5/14
摘要： A method for improvement of contrast in an image shown on a display having a range of displayable video levels. The method comprises providing input video levels representing the image, said levels being within said displayable range; providing a transfer function (120, 121) having a slope greater than one everywhere in a gain region (130) of said displayable range, and a slope greater than zero and less than one everywhere in a softclip region (131) of said displayable range, said regions (130, 131) meeting at a threshold level (125), the transfer function (120, 121) being adapted to transfer any input video level within said displayable range to an output level within displayable said range; and transforming said input levels into output levels within said range, using the transfer function (120, 121). According to the invention, instead of "hardclipping" there is a "softclipping" of levels. Hence, compared to conventional methods, a higher gain may be used. In practical situations, the gain applied in the gain region typically may be up to 4.

8. 发明申请

WO2007141721A1 DISPLAY DEVICE AND METHOD OF PROVIDING ILLUMINATION THERETO 审中-公开
标题翻译：显示装置及其提供照明的方法
公开(公告)号：WO2007141721A1
公开(公告)日：2007-12-13
申请号：PCT/IB2007/052070
申请日：2007-06-01
申请人： NXP B.V. , GROOT HULZE, Hendrikus, W. , ZIJLMAN, Theo, G. , DEN BREEJEN, Jeroen
发明人： GROOT HULZE, Hendrikus, W. , ZIJLMAN, Theo, G. , DEN BREEJEN, Jeroen
IPC分类号： G09G3/34
CPC分类号： G09G3/342 , G09G2310/024 , G09G2360/16
摘要： The present invention proposes a method of providing illumination for a display device including a lighting unit having a plurality of light sources (104). Desired light outputs are determined (210) for each of the light sources (104) in accordance with image data to be displayed. The desired light outputs are compared (220) to a reference light output, and the difference is used to determine a power saving factor. The desired light output for one or more light sources is then increased (230) using the power saving factor. When the lighting unit is activated in accordance with these gained light outputs, a high contrast image is rendered on the display screen, which appears particularly visually appealing to a viewer. Optional steps (312) - (316) compensate for optical cross talk between adjacent backlight segments.
摘要翻译：本发明提出了一种为包括具有多个光源（104）的照明单元的显示装置提供照明的方法。根据要显示的图像数据，为每个光源（104）确定期望的光输出（210）。将期望的光输出与参考光输出进行比较（220），并且该差用于确定功率节省因子。然后使用省电系数增加（230）一个或多个光源的期望的光输出。当照明单元根据这些获得的光输出被激活时，在显示屏幕上呈现高对比度图像，其在视觉上对观看者来说特别显眼。可选步骤（312） - （316）补偿相邻背光段之间的光串扰。

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