CN101266758A - Rapid image rendering on dual-modulator displays - Google Patents

Rapid image rendering on dual-modulator displays Download PDF

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Publication number
CN101266758A
CN101266758A CN 200810097081 CN200810097081A CN101266758A CN 101266758 A CN101266758 A CN 101266758A CN 200810097081 CN200810097081 CN 200810097081 CN 200810097081 A CN200810097081 A CN 200810097081A CN 101266758 A CN101266758 A CN 101266758A
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layer
light source
luminance pattern
effective luminance
display
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CN 200810097081
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Chinese (zh)
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CN101266758B (en
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乔治·J·沃德
沃尔夫冈·海德里奇
洛恩·A·怀特黑德
海尔基·斯特泽恩
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不列颠哥伦比亚大学
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Priority to US60/591,829 priority
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Priority to CN200580029193.2 priority
Priority to CN200580029193.22005.05.27 priority
Publication of CN101266758A publication Critical patent/CN101266758A/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406Control of illumination source
    • G09G3/342Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/06Adjustment of display parameters
    • G09G2320/0626Adjustment of display parameters for control of overall brightness
    • G09G2320/0646Modulation of illumination source brightness and image signal correlated to each other
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406Control of illumination source
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611Control of matrices with row and column drivers

Abstract

Apparatus and methods are provided that employ one or more of a variety of techniques for reducing the time required to display high resolution images on a high dynamic range display having a light source layer and a display layer. In one technique, the image resolution is reduced, an effective luminance pattern is determined for the reduced resolution image, and the resolution of the effective luminance pattern is then increased to the resolution of the display layer. In another technique, the light source layer's point spread function is decomposed into a plurality of components, and an effective luminance pattern is determined for each component. The effective luminance patterns are then combined to produce a total effective luminance pattern. Additional image display time reduction techniques are provided.

Description

双调制器显示器上的快速图像呈现本申请是2005年5月27日提交的国家申请号为200580029193.2、发明名称为"双调制器显示器上的快速图像呈现"的发明专利申请的分案申请。 Fast image on the dual modulator display presents This application is a national application No. 2005, May 27 filed 200,580,029,193.2, entitled "Fast image on the dual modulator display presents" divisional patent application of the invention. 相关申请的交叉对比本申请要求来自2004年7月27日申请的美国专利申请No.60/591,829 " RAPID FRAME RENDERING FOR HIGH DYMAMIC RANGE DISPLAYS"的优先4又。 RELATED APPLICATIONS This application claims contrast to US patent application from July 27, 2004 Application No.60 / 591,829 "RAPID FRAME RENDERING FOR HIGH DYMAMIC RANGE DISPLAYS" priority and 4. 对于美国的情形,本申请根据35U.SC§119要求2004年7月27日No.60/591,829 "RAPID FRAME RENDERING FOR HIGH DYMAMIC RANGE DISPLAYS" 下的权益。 For the case of the United States, according to 35U.SC§119 This application claims the benefit under the "RAPID FRAME RENDERING FOR HIGH DYMAMIC RANGE DISPLAYS" No.60 / 591,829 July 27, 2004. 技术领域本发明是关于用来在有两个调制器类型的显示器上显示图象的系统和方法。 Technical Field The present invention is a system and method for an image in about two modulator type display to display. 第一个调制器产生光模式,第二个调制器调制由第一个调制器产生的光模式,以生成图像。 The first modulator generates a light pattern, the second modulator modulates the light pattern produced by the first modulator to generate an image. 背景技术2002年9月6日公布的国际专利申请WO02/069030及2003年9 月18日^>布的国际专利申请WO03/077013,这两者都结合于此以资参考,公开了具有被调制的光源层和被调制的显示层的显示器。 BACKGROUND September 6, 2002 published international patent application WO02 / 069030 and 2003 September 18 ^> International patent application cloth WO03 / 077013, both of which are incorporated herein by reference, discloses a modulated source layer and display layer of the display is modulated. 被调制的光源层被驱动而产生较低分辨率的图像表示。 The modulated light source layer is driven to generate a lower resolution image representation. 由显示层调制低分辨率的表示,以提供一个较高分辨率可由观看者观看的图像。 Represented by the low resolution display modulation layer to provide a higher resolution image can be viewed by a viewer. 光源层可包括有源调制的光源诸如发光二极管(LED)的一个矩阵。 The light source modulation layer may include an active matrix of a light source such as light emitting diodes (LED),. 位于光源层前端并对准的显示层可以是一个液晶显示器(LCD)。 The display layer and the alignment layer located on the front end of the light source may be a liquid crystal display (LCD). 如果这两层有不同的空间分辨率(比如,光源层的分辨率可能大约是显示层分辨率的0.1%),那么软件校正方法和心理响应(例如遮盖亮度)都可以避免观看者看出分辨率不匹配。 If the two layers have different spatial resolution (for example, the resolution of light source layer may be from about 0.1% resolution display layer), then the software correction method and psychological response (e.g. covering luminance) can be avoided viewer seen distinguish It does not match the rate. 用来驱动诸如LED或LCD面板的光调制器的电子系统是业内专业人员熟知的。 For driving the optical modulator such as an LED or LCD panel, an electronic system is well known in the industry professionals. 例如,LCD计算机显示器和电视机有市售。 Eg, LCD computer monitors and television sets are commercially available. 这样的显示器和电视机包括用于控制由LCD面板上的各象素发送的光的量的电路。 Such monitors and televisions comprising an amount of light transmitted by the control circuit of each pixel on the LCD panel is used. 从图像数据信号导出驱动以控制光源层和显示层的任务在计算上可能耗费高。 Driving signal derived from the image data to control the light source layer and display layer can be computationally task high cost. 要获得这样信号可以通过计算机的视频/图形卡的处理器或者通过某些其它集成到计算机、到显示器自身或到一个辅助装置的适当的处理器来执行。 To obtain such a signal processor of the computer through a video / graphics card, or by some other integrated into the computer, to the display itself or to a suitable processor to perform auxiliary device. 从图像数据信号导出以控制光源层和显示层的任务在计算上可能耗费昂贵。 Data derived from the image signal to control a light source layer and display layer can be computationally consuming task expensive. 获得这样的信号可以通过计算机的视频/图形卡的处理器或通过集成到计算机、显示器或辅助装置的某些其它合适的处理器来执行。 Such obtaining may be performed by a signal processor of a computer video / graphics card, or by some other suitable integrated into a computer processor, a display device or auxiliary. 该处理器的性能限制可能会不希望地限制了可被显示的相继图像帧的速率。 The processor performance limitations may undesirably limit the rate at which successive image frames may be displayed. 例如,如果处理器的能力不足以按视频数据的帧速率处理输入的视频数据,那么观察者可能检测到相继视频图像帧之间如电影那样小的暂停。 For example, if the capacity of the processor is insufficient by the frame rate of the video data processing input video data, the observer may detect between successive video image frames of the film as small as suspended. 这可能干扰观测者的注意力并且负面影响观测者的图像观看体验。 This may interfere with the viewer's attention to the negative impact of the observer and the image viewing experience. 需要一种在如上述通用类型的显示器上显示图像的实用的、成本效益好且有效的显示系统。 Show a need for a practical, cost effective and efficient display system as an image in the above general type of display. 附图说明附图示出本发明非限制性的实施例。 The drawings illustrate a non-limiting embodiment of the present invention. 图1的图示描绘了点扩展函数(PSF)分段为窄和宽的高斯基段。 Diagram of Figure 1 depicts a point spread function (PSF) of the narrow and wide segment Gauss segment. 图2A,2B和2C的图示描绘了16位的点扩展函数(PSF)分割成2 个8位(高和低字节)段。 Figures 2A, 2B, and 2C depict illustrates a 16-bit point spread function (PSF) is divided into two 8-bit (high and low byte) segments. 图3的图示描绘了8位高和低字节的点扩展函数值相对于16位范围的过渡行为。 3 is illustrated in FIG. 8 depicts a point spread function value of the high byte and the low 16-bit relative to the transition behavior range. 图4的图示描绘了对应于图l所描绘的点扩展函数的高和低字节点扩展函数。 Illustrated in FIG. 4 is depicted in FIG. L corresponding to the depicted point spread function of the high and low byte point spread function. 图5的图示描绘了一个迭代导出插值函数的应用,即导出一个十分近似实际有效亮度模式(ELP)的插值有效亮度模式(ELP)。 Illustrated in FIG. 5 depicts an iterative application derived interpolation function, i.e. a very derive an approximation of actual effective luminance pattern (ELP) of the interpolation effective luminance pattern (ELP). 图6是显示器的原理图。 FIG 6 is a schematic view of a display. 图7是表示用于在具有可控光源层和可控显示层的显示器上显示图像的方法的流程图。 FIG 7 is a flowchart illustrating a method of displaying an image on a display having a controllable light source layer and display layer for controllable. 图8是表示确定有效亮度模式的方法的流程图。 FIG 8 is a flowchart of a method of determining an effective luminance pattern. 图9是表示确定有效亮度模式或确定一个有效亮度模式分量的方法的流程图。 9 is a determination or determining an effective luminance pattern is a flowchart of a method effective luminance pattern component. 描述在以下全部描述,阐明了具体细节,以提供对本发明更彻底的理解。 In the following description describes all of the specific details are set forth to provide a more thorough understanding of the present invention. 然而,本发明的实施可不需要这些特例。 However, embodiments of the present invention may be practiced without these special cases. 在其它实例中,为了避免对本发明产生不必要的模糊理解,没有详细表示或描述一些众所周知的元件。 In other instances, in order to avoid unnecessarily obscure the understanding of the present invention, not shown in detail or description of some well-known elements. 因此,本说明书和附图在理解上应被看作是示例性而非限制性的。 Accordingly, in the present specification and drawings are understood to be regarded as illustrative and not restrictive. 本发明可应用到很广的领域,其中图像是通过产生光模式显示的,该光模式至少部分地由图像数据确定,且调制该光模式以产生图像。 The present invention is applicable to a wide field in which an image is displayed by generating light mode, the light mode is determined in part by at least the image data, and modulates the light pattern to produce an image. 该光模式可以由任意适当的设备产生。 The light pattern may be generated by any suitable apparatus. 某些例子包括:* 由驱动器电路驱动的多个光源,该驱动器电路允许光源的亮度可变化。 Some examples include: * a plurality of light source driver circuit for driving, the drive circuit allows the brightness of the light source may vary. * 与反射型或传输型调制器结合的固定的或可变光源,该调制器调制由光源发出的光。 * Fixed or variable light source in combination with a transmission type or a reflection type modulator, the optical modulator modulates the light emitted by. 以下描述涉及非限制示例的实施例,其中光模式是在一个LCD "面板的一侧由一LED阵列产生,并且LCD面板受到控制以调制光模式的光产生可视图像。在这个例中,可以考虑LED阵列组成第一个调制器,并且LCD面板组成第二个调制器。通常,呈现图像帧或帧组以便显示在LED/LCD层显示上,要伴有以下的计算步骤:1. 获取图像数据(可以是满屏或部分屏图像数据)2. 使用业内专业人员熟知的适当技术(例如,可以是基于诸如强度和色彩这样因素的最邻近插值),对第一个调制器的每一LED从图像数据推导适当的驱动值。3. 使用推导的LED驱动值和LED层上的LED点扩展函数以及LED层与LCD层之间的任何层的特性,确定有效亮度模式,当LED 驱动值应用到LED层时,该模式的结果将在LCD层上。4. 然后,由图像数据定义的图像被有效亮度模式划分,而获得LCD层的粗调制数据。5. The following description relates to non-limiting exemplary embodiments, wherein the light pattern is a "side of the panel is generated by a LED array in an LCD, and the LCD panel are controlled to modulate the light to produce a visible image pattern. In this embodiment, may be consider first LED array composed of a modulator, and an LCD panel is typically composed of second modulators, presenting an image frame or group of frames for display on the LED / LCD display layer, to be calculated with the following steps: acquiring image 1 data (or a part of the screen may be a full screen image data) 2. using a suitable technique well known in the industry professionals (e.g., nearest neighbor interpolation can be based on such factors as the intensity and color), a first modulator for each LED .3 appropriate drive values ​​derived from the image data. LED point spread function and the properties of any layer between the LED and the LCD layer on the layer using the derived LED driving value and the LED layers, the effective luminance pattern is determined, when the LED drive value applied when the LED layers, the pattern will result .4 on the LCD layer. then, the image data is divided by the effective luminance pattern defined, to obtain a crude modulated data .5 LCD layer. 在某些情况下,粗调制数据被修改而造成在LED或LCD层中出现的诸如非线性或其它人为因素这类问题。使用业内专业人员熟知的适当的技术(例如,测量,伽马校正,值替换运算等等),可以处理这些问题。例如,生成被修改了的调制数据可能涉及改变粗调制数据,以匹配伽马校正曲线或LCD层的其它具体特性。6. 最后,使用对于LCD的调制数据(可以是粗调制数据或修改了的调制数据)和LED的驱动数据以驱动LCD和LED层,产生所期待的图像。在此描述降低产生用于显示图像的最终调制数据的计算成本的各种方法。这些方法包括:*在较低精确度域中,执行至少某些部分计算(例如,在8位域,而不是16位域进行计算);并且* 实现为有效建立此处描述的有效亮度模式的一个或多个选项。虽然这些技术可以是单个实现的,但可使用此处描述的技术的任意組合。 In some cases, the crude resulting modulated data is modified, such as a linear or other human factors occurring in the LED or LCD layers such problems. Suitable technique (e.g., measurement, gamma correction using well known industry professionals, Alternatively value calculation, etc.), can address these issues. for example, to generate the modified data may involve changing the modulation crude modulated data to match other specific characteristic curve or gamma correction of the LCD layer .6 Finally, the use for the LCD modulation data (modulated data may be a crude or modified modulation data) and the LED driver to drive the LCD and LED data layer, expected to produce images described herein reduce the production cost of the final calculation of modulation data for displaying an image of various of these methods include: * in the less accurate domain, perform at least some part of the calculation (e.g., an 8-bit field, rather than the calculated 16-bit field); * and embodied as described herein to establish an effective effective luminance pattern of one or more options. While these techniques may be implemented in a single, but can use any combination of techniques described herein. 效亮度模式的确定LED层内的每个LED的点扩展函数是由该LED的几何属性确定的。确定LED层的总有效亮度模式的简单技术是最初将每个LED 的点扩展函数(具体来说,由LED所发射并通过LED和LCD层之间的所有光结构的光的点扩展函数)乘以所选择的LED驱动值和一个适当的比例参数,以得到对于该驱动值对LCD层上的每个象素的LED 的有效亮度贡献。照此办法,LED层内的每个LED的亮度贡献可被确定并求和, 以得到LED层上的总的有效亮度模式,该模式是在所选择的驱动值应用到LED层上时产生的。然而,这些乘法和加法运算计算起来是昂贵的(即费时),因为为了便于进行上述步骤4的除法运算,必须将有效亮度模式确定为与LCD层的相同空间分辨率。 Point spread function of each LED in the LED layers to determine effective luminance pattern is determined by the geometric properties of the LED. Simple technique to determine the total effective luminance pattern LED layers is initially each LED point spread function (specifically to that the light emitted by the LED and through all light point spread function of the structure between the LED and the LCD layer) multiplied by the selected value and a LED driving parameters appropriate ratio to obtain the LCD drive values ​​for this layer LED effective brightness contribution of each pixel. as such a way, the luminance contribution of each LED in the LED layers may be determined and summed to obtain the total effective luminance pattern on the LED layers, the pattern is in the generated when the selected drive values ​​applied to the LED layers. However, such multiplication and addition operations computationally expensive (i.e. time consuming), because in order to facilitate the above-described step division 4, the effective luminance pattern must be determined as LCD layer of the same spatial resolution. 如果LED的点扩展函数具有非常宽的"支持",那么计算费用就特别大。 If the LED point spread function has a very wide "support", then calculate the cost is particularly large. 一个LED点扩展函数的"支持"是由LED以不可忽略的量照射的LCD象素数。 A LED point spread function "supported" by a number of LCD pixels are non-negligible amount of LED illumination. 该支持可借助于在LED层象素中测量的半径来规定,在此,LED点扩展函数变得很小,以至于观察者感觉不出来。 This support can be measured by means of the LED layers to a predetermined pixel radius, here, LED point spread function becomes small, so that it is not perceived by the observer. 该支持对应于由每个LED以有效量被照射的多个LCD象素。 The LCD supports a plurality of pixels corresponding to an effective amount of each LED illuminated. 例如,考虑一个六角形LED阵列,其中每个LED的中心与紧邻LED间隔等于50个LCD层象素的距离。 For example, consider a hexagonal LED array, each LED in LED spacing proximate the center of a distance equal to 50 pixels of the LCD layer. 如果每个LED具有含有150 个LCD象素的支持的点扩展函数,那么LCD层中心部分的每个象素将被来自大约35个LED的光照射。 If each LED point spread function having a support 150 containing the LCD pixels, each pixel of the LCD layer from the central portion to be irradiated with light around the LED 35. 因而就本例来说,为了求出每个相关LED贡献给每个象素的光量,有效光亮度模式的计算需要对该LCD层每个象素的35次运算。 Therefore case of this example, in order to determine the contribution of each of the associated LED light amount of each pixel, to calculate the effective luminance pattern 35 requires the computation of each pixel of the LCD layer. 在LCD层具有高空间分辨率之处,这种计算就非常昂贵(即费时)。 With high spatial resolution at the LCD layer, this calculation is very expensive (i.e. time consuming). 分辨率降低确定在LCD上产生的有效亮度模式所需的时间,可通过以降低的空间分辨率计算有效亮度模式而降低,该空间分辨率低于出现在LCD层上的高分辨率图像的分辨率。 Determining the time required for resolution reduction generated on the LCD effective luminance pattern may be calculated effective luminance pattern is reduced by reducing the spatial resolution, the spatial resolution below the resolution of the LCD layer appears on the high resolution image rate. 因为各个光源的点扩展函数通常是平稳变化的,所以这是可行的。 Since the point spread function of the respective light sources usually varies smoothly, so this is feasible. 因此,该有效亮度模式以LCD.的分辨率相对緩慢地变化。 Thus, the effective luminance pattern to the LCD. Resolution changes relatively slowly. 从而能够按较低分辨率计算有效亮度模式, 并定标该有效亮度模式直到到所期待的高分辨率,不会引起的显著的人为因素。 It can be calculated effective luminance pattern at a lower resolution, and given significant human factors standard until the effective luminance pattern to expect high resolution, not caused. 可以使用适当的线性的、高斯或其它插值技术进行缩放(scaling)。 It can be used suitably linear, Gaussian or other interpolation techniques to zoom (scaling). 这样的空间分辨率降低,结果是建立有效亮度模式的计算耗费近似线性的降低。 Such spatial resolution reduction, the result is the establishment of cost effective luminance pattern calculated approximately linear decrease. 许多可用的用于按比例增加以低分辨率计算的有效亮度模式的插值方法,比起以LCD或另外第二个光调制器分辨率计算有效亮度模式的耗费,在计算上是节省的。 Many methods are available for interpolation effective luminance pattern to low resolution increases proportionally calculated, or otherwise than in a second LCD light modulator resolution calculating effective luminance pattern consuming, computationally savings. 用前述的例子,在宽和高两个方向上的IO倍分辨率的降低,产生计算耗费近似100倍的降低。 With the foregoing examples, the IO-fold reduction in resolution in both width and height directions, resulting in reduction in computational cost is approximately 100 times. 这是因为降低的分辨率图像上的象素总数比出现在LCD层上的高分辨率图像上的象素总数要少100倍。 This is because the total number of pixels in the reduced resolution image than the total number of pixels on the LCD layer appears on the high-resolution image 100-fold less. 降低了的分辨率图像的每个象素仍从35个LED接收光,必须每象素35次计算,但与分别对LCD层上出现的实际的高分辨率图像中每象素分别执行计算的情形相比,这些计算却施加到100倍少的象素上。 Reducing the resolution of the image for each pixel still receives light from the LED 35, 35 must be calculated for each pixel, respectively, but the actual resolution image appearing on the LCD layer per pixel calculations are performed compared to the case, but these calculations applied to the pixels 100 times less. 点扩展函数分解图像呈现的计算耗费也可以通过分解每个光源(例如,每个LED) 的点扩展函数成几个分量(例如,通过执行高斯分解)被降低,照此办法,将所有分量再组合而产生原来的点扩展函数。 Decomposition point spread function to calculate the cost of the image may be presented by the decomposition of each light source (e.g., each LED), the point spread function into several components (e.g., decomposition by performing Gaussian) is reduced, as such a way, all the components and then combined to create the original point spread function. 然后,可以分别确定每个分量的有效亮度模式。 Then, determine effective luminance pattern for each component separately. 一旦对每个分量确定了有效亮度模式, 那些有效亮度模式就可被组合而产生总的有效亮度模式。 Once determined for each component the effective luminance pattern, effective luminance pattern that can be combined to produce a total effective luminance pattern. 例如,该组合可以通过力。 For example, the combination may be by the force. 法进^亍。 ^ Right foot into law. 如上所述,计算由各分量贡献的有效亮度模式可按LCD层的分辨率或降低了的分辨率进行。 As described above, the effective luminance pattern is calculated by the component can contribute to resolution of the LCD layer or a reduced resolution. 由于特别适合执行基于标准的点扩展函数的快速运算(例如,高斯点扩展函数)的硬件组件市场有售,即使按该LCD层分辨率对每个分量计算有效亮度模式,也可获得快速的效益。 Since particularly suitable for fast operation is performed based on the standard point spread function (e.g., a Gaussian point spread function) are commercially available hardware components, even if the effective luminance pattern according to the resolution of the LCD layer is calculated for each component can be obtained quickly benefit . 这样的硬件组件对显示器的LED层内实际的LED的典型非标准点扩展函数,通常并非市场有售,因而必须诉诸使用通用处理器的相当慢的计算技术。 Such non-standard hardware components of a typical point spread function display LED layer within an LED is actually not usually commercially available, and therefore must resort to relatively slow computing technology using a general purpose processor. 如果使用上述的分辨率降低技术以确定每部分的有效亮度模式,:. 可以达到更大的快速效益。 If the above-described resolution reduction techniques to determine the effective luminance pattern for each portion: can quickly achieve greater efficiency. 此外,不同的空间分辨率可用于点扩展函数的不同分量,以产生更大的快速效益。 Also, different spatial resolutions may be used for different components of the point spread function to generate a greater rapid benefit. 例如,图l(实线)描绘一个示例性LED点扩展函数,其具有陡的中心部分10及宽的尾部分12。 For example, FIG. L (solid line) depicts an exemplary LED point spread function, and the width of the tail portion 10 having a steep central portion 12. 在这种情况下,实际的点扩展函数可以分解成如所述的一个窄基的高斯分量14A和一个宽基的高斯分量14B。 In this case, the actual point spread function can be decomposed into the Gaussian component 14A as a narrow base Gaussian component 14B and a wide group. 宽基的高斯分量14B(虛线)与窄基的高斯段14B相比,对图像强度贡献较小。 Gaussian width of the Gaussian segment group 14B 14B (broken line) as compared to the narrow group of image intensity contribution is small. 此外,宽基的高斯分量14B比起窄基的高斯分量14A变化更为緩慢。 In addition, the wide base Gaussian component 14B is narrower than the base Gaussian component 14A changes more slowly. 因此,对于窄基的高斯分量14A的有效亮度模式能按较高空间分辨率确定,同时对于宽基的高斯分量14B可按相当低的空间分辨率确定有效亮度模式。 Thus, for narrow Gaussian group effective luminance pattern 14A can be determined at a higher spatial resolution, while the resolution for determining an effective luminance pattern width Gaussian component 14B may be a relatively low group space. 这保存了包含在窄基高斯分量14A中的图像强度信息重要部分,并且由于窄基高斯段的有效支持是小的于是很少有LCD象素被那种分量覆盖,因而仍然相当快速。 This holds an important part of image intensity information contained in the narrow base Gaussian component 14A is, since the effective support and a narrow base Gaussian segment is small LCD pixels are then covered with a few components that therefore is still quite rapid. 反之,由于宽基高斯分量14B含有相对小的图像强度信息,该分量可以低分辨率相对快地处理,不会实质上降低组合对每个分量推导出的模式所产生的总有效亮度模式的分辨率。 Conversely, since the wide base Gaussian component 14B comprises a relatively small image intensity information, which may be a low-resolution component relatively quickly, without substantially reducing the resolution of the total effective luminance pattern for each component of the combination pattern derived produced rate. 8位分割图像数据一般是以16位字的形式提供的。 8 in the form of divided image data is generally provided in the 16-bit word. 高端(即更为昂贵的) 图形处理器典型在16位域进行计算。 End (i.e. more expensive) in the graphic processor 16 is typically calculated field. 这样的处理器可具有专用的16 位或浮点算法单元,能够快速执行16位运算。 Such processors may have a dedicated or a 16-bit floating-point arithmetic unit, it is possible to quickly perform 16-bit arithmetic. 通过在8位域计算有效亮度模式能减轻对可快速执行16位运算的高端处理器的需要。 Domain by calculating the effective luminance pattern 8 can reduce the need to quickly perform high-end 16-bit arithmetic processor. 通过不很昂贵的处理器能够合理地进行这样的计算。 This can be reasonably calculated by the processor is not very expensive. 每个LED点扩展函数是强度对相对于LED中心距离的一个二维函数。 Each LED is a point spread function with respect to a two-dimensional intensity function of distance from the center LED. 这样的点扩展函数可由多个16位数据字刻画。 Such a point spread function may characterize a plurality of 16-bit data word. 其中,点扩展函数是通过查找表表示的,需要用许多16位数值来定义该点扩展函数; 例如,对于位于中心在LED上的圆周上或内且半径对应于该点扩展函数的半径的支持的每一个LCD象素,可以提供一个值。 Wherein the point spread function is represented by a lookup table, you need a lot of 16-bit values ​​to define the point spread function; for example, on the circumference in the center of the LED or within a radius corresponding to the support radius of the point spread function each LCD pixel, a value may be provided. 这些16位数据字的每一个具有一个8位高字节分量和一个8位低字节分量(任意一个16位值J可以分成两个8位值5和C,使得爿=丑*28+<:,其中5是"高字节",而C是"低字节")。 Each having an 8-bit high byte component and a low byte of eight components of these 16-bit data word (any 16-bit value J can be divided into two 8-bit values ​​5 and C, such that the valves ugly * 28 = + < :, where 5 is "high", and C is "low"). 只有在所有的必要的缩放和处理操作已应用到输入的16位数据之后,更适宜抽取该8位值。 Only after all the necessary processing operations and scaling have been applied to the data input 16, more suitably extracts the 8-bit value. 图2A描述了一个16位点扩展函数;图2B和2C分别描述图2A16位点扩展函数的8位高和低字节分量。 2A depicts a 16-bit point spread function; FIG. 2B and 2C depict high and low byte of eight components of FIG 2A16 sites spread function. 16位数据字能够表示从2。 It can be represented by 16-bit data words from the two. -1到216-1的整数值(即从0到65535 )。 -1 to 216-1 integer values ​​(i.e., 0 to 65535). 一个8位字节能表示从2fl-l到28-1的整数值(即从0到255 )。 An 8-bit byte can be expressed from integer values ​​2fl-l to 28-1 (i.e., from 0 to 255). 由8 位高字节分量刻画的点扩展函数的"支持"(如前面定义的)比起整个点扩展函数的支持要小得多(更窄)。 8-bit high byte component characterization of the point spread function "support" (as defined previously) than the point spread function of the whole support is much smaller (narrower). 这是因为当刻画点扩展函数的16 位数据字作为一个整体达到65535个可能值范围之中的255个值时, 这8位高字节分量达到它的255个可能值的最低值(零)。 This is because when 16-bit data word characterize the point spread function as a whole to reach values ​​among 65 535 255 range of possible values, the 8 bits of byte component reaches the minimum value (zero) to its 255 possible values . 由该低字节分量为余下的255个值提供等于零的高字节分量值。 The component of the low byte of the remaining values ​​255 provide the high byte component value equal to zero. 从而可以快速确定对应于窄基8位高字节分量的有效亮度模式,而没有图像强度信息的实质丢失。 It can be quickly determined to correspond to a narrow group 8 effective luminance pattern of the high byte component, without substantial loss of image intensity information. 分辨率降低和/或其它上述技术进一步加速了8位高字节分量的有效亮度模式的确定。 Resolution reduction and / or other techniques described above to further accelerate the effective luminance pattern is determined eight high byte component. 由一个8位低字节分量刻画的点扩展函数的支持是相当宽的。 Point spread function supported by an 8-bit low byte component characterization is quite broad. 具体来说,尽管8位低字节分量只有255个可能的值,那些值从255降低到0 (源自作为整体点扩展函数65535个值),并且那些255个值对应到255个最低强度电平(即按照这个电平,高字节分量的值等于0)。 Specifically, although eight low byte component only 255 possible values, those values ​​decreased from 255 to 0 (point spread function as a whole from 65535 values), and values ​​corresponding to those 255 255 electrically minimum strength level (i.e., according to this level, the high byte component value is equal to 0). 那些255个电平表示其外围部分中点扩展函数的取值。 255 indicates that the level of a peripheral portion thereof extended midpoint value function. 可以将低字节分量分成两个区域。 Low byte component may be divided into two regions. 一个落在边界内的中心区域, 在边界上由高字节分量刻画的点扩展函数达到零。 A central area falls within the boundary, on the boundary portrayed by the high byte component reaches zero point spread function. 在该中心区域,如果原始的16位点扩展函数是相当平滑的,那么低字节分量一般以一种无规律的锯齿状模式变化(如图3所描述)。 In the central region, if the original 16-bit point spread function is relatively smooth, the low byte component typically in a sawtooth pattern irregular variation (as described in FIG. 3). 这是因为,在中心区域, 由低字节分量刻画的点扩展函数部分增加了由高字节分量刻画的点扩展函数部分。 This is because, in the central region, by the low byte component characterization part of the point spread function of the point spread function part increases portrayed by the high byte component. 例如,考虑从16位值10239到16位值9728的过渡。 For example, consider a transition from a 16-bit value 10239-16 value of 9728. 该16位值10239有39的高字节分量值及255的低字节分量值(即39*256+255=10239)。 The 10239 has a 16-bit value 39 of the high byte and low byte component value of the component values ​​255 (i.e., 256 + 39 * 255 = 10239). 因此,这低字节分量对点扩展函数的贡献最初是255,而高字节分量的贡献最初是39。 Thus, this contribution to the components of the low byte point spread function 255 initially, and the contribution of the high byte component 39 initially. 高字节分量的贡献保持在39, 而低字节分量的贡献平滑地从255降到0——在该点,原始16位点扩展函数有值9984 (即39*256+0 )。 Contribution of the high byte component is kept at 39, while the contribution of the low byte component 255 is smoothly dropped from 0-- At this point, the original 16-bit point spread function has a value of 9984 (i.e. 39 * 256 + 0). 然后,高字节分量的对点扩展函数的贡献值平滑地从39变到38,但这变化是由低字节分量对点扩展函数贡献值急骤变化(从255到0)伴随的。 Then, the contribution to the point spread function of the value of the high byte component is smoothly changed from 39 to 38, but this change is caused by the low byte component of the point spread function abrupt change contribution (from 255 to 0) attendant. 在图4可见,在原始点扩展函数半径/?内(并且其中高字节分量对该点扩展函数的贡献值非零),结果的低字节分量的对点扩展函数的贡献的锯齿模式是原始点扩展函数的特征。 Seen in FIG. 4, the original point spread function of the radius /? Internal (and wherein the contribution of the high byte component value zero point spread function), the contribution to the zigzag pattern of the point spread function of the result of the low byte component is the original point spread function characteristic. 在半径及以外,高字节分量对点扩展函数的贡献值是零,并且低字节分量对点扩展函数的贡献值平滑变化。 Radius and beyond, the high byte component contribution to the point spread function is zero, and the value of the low byte component contribution to the point spread function change smoothly. 可以在这两个区域内(即半径i?的内部和外部区域)将点扩展函数低字节分量的贡献进行不同处理,以避免不希望的人为因素。 Component contribution may be low byte point spread function in different treatment (i.e., the radius of I? Inner and outer regions) of these two regions, to avoid undesired human factors. 例如, 保持包含在半径及内部区域中的图像强度信息实质部分,最好使用如前所述用来确定高字节分量对点扩展函数贡献的同一相对高分辨率, 对该区域确定有效亮度模式。 For example, a substantial portion of the image intensity information contained in the holder and the radius of the inner region is preferably as described above using relatively high resolution component of the high byte is used to determine the point spread function of the same contribution to determining the effective luminance pattern region . 反之,可使用没有实质丢失图像强度信息的低得多的分辨率,确定半径及外区域的有效亮度模式。 On the contrary, it can be used without substantial loss of much lower resolution image intensity information, determining an effective luminance pattern and the outer radius of the area. 在三个点扩展函数段(即高字节分量,半径i?内的低字节分量区域和半径及外的低字节分量区域)经上述处理之后,对结果分别增釆样以匹配LED层的分辨率,然后与所使用的适当的缩放因子重新组合。 Point spread function in the three segments (i.e., high byte component, the radius of I? Low byte and the low byte component region and the outer radius of the components therein) via After the above processing, the results are increased to match the LED layers preclude comp resolution, then an appropriate scaling factor and re-used in combination. 典型组合涉及,在高字节分量的值乘以256之后,对两个低字节分量区域的值与高字节分量的值求和。 A typical combination involves, after the value of the high byte component is multiplied by 256, summing the values ​​and high byte values ​​of components of the two components of the low-byte region. 敏如果使用分辨率低于LCD层分辨率的分辨率确定有效亮度模式值,则必须对该值增采样以使得与LCD层的分辨率相匹配。 If Min resolution LCD layer resolution is lower than the resolution value to determine effective luminance pattern, sampling the value must be increased so that the resolution of the LCD layer and the match. 用于对低分辨率图像增采样为高分辨率图像的插值技术是众所周知的,基于线性的与高斯的技术是公知的。 Interpolation techniques for low-resolution image by a high resolution image of the sample is known, a Gaussian-based technologies are well known linear. 虽然这种现有技术能够与上述技术结合使用,但使用对特定显示器配置优化的插值技术可改进准确度或速度,或它们二者。 Although this prior art technique can be used in combination with the above-described, but using the configuration optimized for a particular display interpolation techniques may improve the accuracy or speed, or both. 最优化便于较高分辨率图像压缩,使引入不希望的插入人为因素最小化,并且降低图像呈现时间。 Optimization higher resolution image compression to facilitate the introduction of undesirable insertion human factor is minimized, and reduced image presentation time. 在极端情形下,插值技术可用来降低有效亮度模式分辨率,使之与LED层的分辨率匹配。 In extreme cases, the interpolation technique can be used to reduce the effective luminance pattern resolution, to match the resolution of the LED layer. 现有的插值技术经常限于与特定的预插值数据一同使用,或限于与具体的插值函数使用。 Conventional interpolation techniques are often limited to use in conjunction with a specific pre-interpolation data, or limited to use with a particular interpolation function. 用于使有效亮度模式的分辨率与LCD显示的分辨率相匹配的该插值技术,不需要满足这样的限制,只要预插值数据与所选定的插值函数的巻积将产生有效亮度模式,该亮度模式相对于实际有效亮度模式具有足够的相似性。 Match the resolution of the interpolation technique effective luminance pattern for the resolution of the LCD display, need not meet this limitation, as long as the pre-selected with the interpolation data interpolation function convolving the generated effective luminance pattern, the brightness mode phase having sufficiently similar to the actual effective luminance pattern. 所需要的相似度依赖于显示应用。 The degree of similarity required depends on the application display. 不同的应用需要不同的相似度"~在某些应用中,相对小的偏差可能无法接受地干扰观察者,而较大的偏差在其它的应用中倒可能是可容忍的(例如,包括电视或计算机游戏图像的应用,其中相对大的偏差不过是产生绝大多数观察者可接受质量的图像)。因此,不必直接应用插值技术到实际的LED驱动值, 或应用到实际的LED点扩展函数上。例如,图5描述了通过使用一种迭代导出插值技术降低有效亮度模式的分辨率以匹配LED层分辨率所得到的结果。在LED层分辨率上的象素值不是该LED驱动值一它们是插值前该有效亮度模式的亮度值。可使用标准的迭代方法和随机启动条件确定该插值函数。如图5中所见,该迭代导出插值函数与有效亮度模式值的巻积产生相当接近实际有效亮度模式的结果。可以使用许多不同的插值技术。在插值函数和该LED的点扩展函数、LED Different applications require different similarity "- In some applications, relatively small deviations may unacceptably interfere with the observer, and a large deviation in other applications, the reverse may be tolerable (e.g., television or a computer game image in which a relatively large deviation is produced, but the vast majority of the viewer's image of acceptable quality). Accordingly, interpolation techniques do not have direct application to the actual LED drive value, or to the actual point spread function of LED For example, Figure 5 depicts the results of the resolution of the LED layer obtained by using a derived interpolation technique to reduce the effective luminance pattern to match the resolution of iterations. layer pixel value on the LED resolution is not a value of the LED driving thereof is the luminance value of the effective luminance pattern of the pre-interpolation may be used and a random standard iterative method for determining the starting condition interpolation function. seen in FIG. 5, the volume iterative interpolation functions and deriving effective luminance pattern of values ​​is quite close to the actual product generators results effective luminance pattern can be used in many different interpolation techniques. in the interpolation function and the point spread function of LED, LED 动值、或任意其它的显示特性之间,不需要任何相关, 只要选定插值函数和为与函数使用选定的输入参数能够产生出相当接近实际有效亮度模式的结果。示例性实施例图6表示本发明的某些示例性实施例。图6示出一显示器30,包括一个调制光源层32和显示层34。例如,光源层32可包括:* 诸如LED这样的可控光源阵列;* 一个固定强度光源和一个光调制器,其配置为适于空间调制来自光源的光强度;* 这些装置的某些组合。在所示的装置中,光源层32包括-LED33的一个阵列。 显示层34包括一个光调制器,该调制器进一步空间调制来自光源层32入射在显示层34上的强度。例如,显示层34可包括一个LCD 面板或其它传输型光调制器。显示层34 —般具有比光源层32分辨率高的分辨率。可在光源层32和显示层34之间提供适合将来自光源层32的光传送给显示层34的光结构36。 Dynamic values, or between any other display characteristics without any correlation, as long as the selected interpolation function and a function to use the selected input parameters can be generated very close to the actual effective luminance pattern results. Exemplary embodiment of FIG. 6 represents certain exemplary embodiments of the present invention. FIG. 6 shows a display 30 comprising a light source layer 32 and the display modulation layer 34. For example, layer 32 may be a light source comprising: a light source such as an LED array such controllable *; * a a fixed intensity light source and the optical modulator, configured to modulate the spatial light intensity from a suitable source; * some combination of these devices in the apparatus shown, the array of light source layer 32 comprises a layer 34 -LED33 display. comprising a light modulator, the modulator is further spatially modulated intensity from light source layer 32 is incident on the display layer 34 for example, the display layer 34 may include an LCD panel or other transmission-type light modulator display layer 34. - like than the light source 32 a resolution higher layer may be provided adapted to transmit light from the light source layer 32 of the light emitting structure layer 34 of the display 36 in the layer 32 between the light source and the display layer 34. 结构36可包括如空隙,光漫射体,准直器等元件。在所示的装置中,控制器40包括一个数据处理器42和适当的接口电子电路,有用于控制光源层32的44A以及用于控制显示层34的44B,该显示器层接收规定被显示在显示器30上的图像的图像数据46。 控制器40驱动光源层34的光发射器(例如,LED的33)和显示层34的象素35,以产生供个人或多人观看所期待的图像。可对处理器42存取的程序存储器46包含软件指令,这些指令当由处理器42执行时,将引起处理器42执行这里所述的方法。控制器40可以包括一适当的可编程计算机,该计算机具有适当的软/硬件接口,用来控制光源层32和显示层34,以显示由图像数据48所规定的图像。 The structure 36 can include a void, a light diffuser, a collimator like element. In the arrangement shown, the controller 40 includes a data processor 42 and appropriate interface electronics, for controlling light source layer 32 and 44A 44B for controlling the display layer 34, the layer receives a predetermined display is displayed on the display 30 the image data of the controller 40 drives the light source 46. the light emitter layer 34 (e.g., LED's 33) and a display layer 34 35 pixels, for a person or persons to produce the expected viewing image may be accessed by processor 42 to memory 46 comprises software program instructions, these instructions when executed by processor 42, processor 42 will cause the execution herein the method described below. the controller 40 may comprise a suitably programmed computer, the computer having appropriate software / hardware interfaces for controlling light source layer 32 and the display layer 34, to display an image specified by image data 48. 图7示出在如图6所示的通用型的显示器上显示图像数据的方法50。 FIG 7 illustrates a method of displaying image data 50 on a common type display as shown in Fig. 方法50始于在块52处接收图像数据48。 Method 50 begins by receiving image data 48 at block 52. 在块54中,从图像数据48推导用于光源层32的第一驱动信号。 In block 54, a first driving signal for the light source layer 32 derived from the image data 48. 适当已知方法可用来在块54获得第一驱动信号。 Suitable known method may be used to obtain a first driving signal at block 54. 在块56中,方法50计算有效亮度模式。 In block 56, the method 50 calculates the effective luminance pattern. 该有效亮度模式可以从笫一驱动信号和已知的用于光源层32的光源的点扩展函数计算。 The effective luminance pattern can be calculated from the point spread function Zi of a driving signal source and the known source for layer 32. 块56按低于显示层34分辨率的分辨率计算有效亮度模式。 Block 56 calculates the effective luminance pattern at a resolution of the display layer 34 is lower than the resolution. 例如,块56 可以按每一维小于显示层34分辨率为4或更小的因子(在某些实施例中,各维的因子范围在4到16更小)计算有效亮度模式。 For example, block 56 may be displayed according to each dimension of layer 34 is less than a resolution of 4 or less factor (in some embodiments, each dimension smaller factor in the range of 4 to 16) calculate the effective luminance pattern. 在块60中,把在块58计算的有效亮度模式增采样达到显示层34 的分辨率。 In block 60, the effective luminance pattern computed by the block 58 reaches the sampling resolution of the display layer 34. 通过使用例如任意适当的插值技术可以实现这一点。 Using any suitable interpolation techniques may be implemented, for example, this. 在块62中,从增采样有效亮度模式以及该图像数据确定用于显示层的第二驱动信号。 In block 62, by sampling an effective luminance pattern is determined from the image data and a second driving signal for the display layer. 第二驱动信号也可考虑该显示层巳知特征和任意所期待图像校正,色彩校正等。 The second drive signal may also consider the display layer Pat known image correction, color correction, and any other features expected. 在块64处,于块54中得到的第一驱动信号应用到光源层,且块62中得到的笫二驱动信号应用于显示层,以显示图像供观看。 At block 64, a first driving signal obtained in block 54 is applied to the light source layer, Zi second driving signal obtained in block 62 and applied to the display layer to display an image for viewing. 图8表示用来计算有效亮度模式的方法70。 Figure 8 shows a method for calculating the effective luminance pattern 70. 方法70可用于方法50中的块56内或应用到其它场合。 Method 70 may be used in the method of block 56 or 50 is applied to other situations. 方法70开始于计算光源层32的光源的点扩展函数的每个分量的ELP (块72A,72B和72C-共同为块72)。 The method 70 begins ELP calculates for each component of the light source layer 32 of the point spread function (block 72A, 72B and 72C- jointly block 72). 块72能以任意顺序执行,或彼此平行地执行。 Block 72 can be performed in any order, or executed in parallel with each other. 图8表示三个PSF分量73A,73B和73C以及三个对应的块72。 8 shows a three PSF components 73A, 73B and 73C and three corresponding blocks 72. 该方法可以由两个或更多的PSF分量73实施。 73 The method may be implemented by two or more component PSF. 该点扩展函数(PSF)的分量一般是被预定的。 Component of the point spread function (PSF) is typically predetermined. 将每个分量的表示存储在处理器42可存取的位置中。 Indicates the position of each component is stored in the processor 42 can access. 对于光源层32的每个光源,块72 的每一个可包括使定义该点扩展函数分量值,乘以表示该光源强度的值。 For each light source of light source layer 32, each block 72 comprises a point spread function defines the component values, multiplied by a value representing the intensity of the light source. 在块74中,在块72所确定的有效亮度模式被组合,例如通过相加,产生该有效亮度模式的总的估计,这通过向光源层32施加第一驱动信号而产生。 In block 74, the effective luminance pattern determined in block 72 are combined, for example, by adding, to produce the estimated total effective luminance pattern, which is generated by applying a first driving signal to the light source layer 32. 图9示出可以用于计算有效亮度模式的方法80。 9 illustrates a method 80 may be used to calculate the effective luminance pattern. 方法80可以应用到:* 计算块56中的方法50的有效亮度模式;或*对于方法70的块72中点扩展函数的各分量计算有效亮度模式;或* 应用到其它场合。 Method 80 may be applied to: * calculated in block 56 the effective luminance pattern 50; * or methods for each component function block 72 of the extended midpoint 70 to calculate the effective luminance pattern; * or applied to other situations. 方法80在块82起始于刻画光源层32的光源的一个点扩展函数(或一个PSF分量)的数据,以及指示光源在第一驱动信号控制下能以多大强度操作的数据。 In the method 80 starts at block 82 depicts a point spread function of the light source layer 32 (or a component PSF) data, data indicating how strong the light source can be operated at a first drive signal control. 方法80将这些值组合到一起(举例来说,将它们相乘)得到一组值,刻画该光源对各种空间位置的有效亮度模式的贡献。 Method 80 These values ​​are grouped together (for example, multiplying them) to obtain a set of values, the source to characterize the contribution of various effective luminance pattern of spatial position. 块84得到结果值的高阶和低阶分量。 Block 84 to obtain high and low order components of result values. 在某些实施例中,结果值是16位字,高阶分量是8位字节,且低阶分量是8位字节。 In certain embodiments, the result value is 16-bit word, high-order components is 8 bytes and lower-order components are 8-bit bytes. 对块86和块88中的高阶和低阶分量分别确定对ELP的贡献。 The block 86 and the block 88 are high and low order components to determine the contribution of the ELP. 对每个光源,其值包含在86的高阶贡献中的支持区域一般明显小于其值包含在块88的低阶贡献中的支持区域。 For each light source, comprising a support area in which the value of high-order contribution of 86 is generally significantly smaller than the value contained in the support region of its low-order contribution of the block 88. 块88—般对于位于高阶贡献(块卯)的支持区域内的点,与对于位于高阶贡献(块92)的支持区域外的点,分别计算低阶贡献。 For point-like block 88 within the support region of the high-order contribution (block d), the support and the outer region of the high-order contribution (block 92) a point, we calculate the low-order contribution. 块86,90和92可以按任意顺序或同时执行。 Blocks 86, 90 and 92 may be performed in any order or simultaneously. 在块94中,把来自块86, 90和92的贡献组合到一起产生一个总的ELP。 In block 94, from block 86, and the contribution of 90 to 92 to produce a combined total ELP together. 在高阶和低阶分量是8位字节或更小的情况下,在块86, 90和92中的计算可主要或完全按8位域(即在8位操作数上使用8 位运算)执行。 In the high and low order components is 8 bytes or less, the block 86, 92 and 90 may be calculated in exactly eight primary or field (i.e., 8-bit operations on operands 8) carried out. 本发明的某些实现包括计算机处理器,该处理器执行引发处理器执行本发明方法的软件指令。 Certain implementations of the invention includes a computer processor, the processor executes software instructions initiator processor to perform a method according to the present invention. 例如,计算机或其它显示控制器中一个或多个处理器,可通过执行处理器可存取的程序存储器中的软件指令, 实现图7,图8和图9所述的方法。 For example, a computer or other display controller to one or more processors, the software instructions may be executed by a program memory accessible to the processor, methods according to FIGS. 8 and 9 in FIG. 7 implemented. 本发明也可以以程序产品的形式提供。 The present invention may also be provided in the form of a program product. 该程序产品可包括任何携带一组含有指令的计算机可读信号的介质,这些指令由数据处理器执行时,引起数据处理器执行本分明方法。 The program product may comprise any medium which carries a set of computer-readable signals comprising instructions, the instructions when executed by a data processor, cause the data processor to perform the method of the present clear. 根据本发明的程序产品可以在形式上是任意多变的。 The program product of the present invention may be in any form be varied. 例如,该程序产品可包括诸如磁数据存储介质的物理介质,这包括软盘,硬盘驱动器;光数据存储介质,这包括CD ROM和DVD,电子数据存储介质,这包括ROM, flashRAM等;或传输型介质,诸如数字或模拟通信链路。 For example, the program product may include such as magnetic data storage media of physical media, including floppy disk, a hard disk drive; optical data storage media, including CD ROM and DVD, electronic data storage media including ROM, flashRAM the like; or a transmission type media, such as digital or analog communication links. 该程序产品上的计算机读信号可以是可选地被压缩或加密。 The computer reads the signals on the program product may optionally be compressed or encrypted. 其中的组件(例如, 一个部件,部分,组合件,装置,处理器, 控制器,准直仪,电路等等)除非另有指出,都要参照以上说明,参照那些组件(包括参照"方法,,)应当解释为包括那些执行所述组件功能的任何组件等价物(即功能上的等价物),包括的组件并非结构上等价于所透露的执行本发明所示示例性实施例中功能的结构。对于业内专业人员明显的是,按以上的公开,按本发明的实施中,在不违背其精神或范围之下,可能有许多替代和修改,例如:* 光源层可包括许多不同类型的光源,它们可具有彼此不同的点扩展函数。* 显示器可以包括彩色显示器,以及上述的计算可以对多种色彩中的每一种分别执行。虽然以上讨论了若干示例方式和实施例,但业内专业人员应看到一定的改变,排列,添加以及其部分组合。因此这里的意思是,以下所附 Wherein components (e.g., a member, part, assembly, device, processor, controller, collimator, circuit, etc.), unless otherwise indicated, be described with reference to the above, with reference to those components (including the reference to "the method, ,) should be interpreted as including equivalents of any of those components (i.e. functional equivalent) performing the functions of the components, including components not equivalent to the disclosed structure of carrying out the invention shown in the exemplary functional structure of the embodiment. for professionals in the industry is evident that, according to the above disclosure, according to embodiments of the present invention, under the scope without departing from the spirit or there may be many alternatives and modifications, such as: * light source layer may comprise many different types of light sources, they may have a different point spread functions each other. * color display may include a display, and the above calculation can Although several examples discussed above manner in each of a plurality of colors and embodiments are performed, but the industry professionals should see some changes, permutations, additions and sub-combinations thereof. Thus it is meant herein, the following appended 权利要求和此后的权利要求,被解释为包括在它们实际范围内的所有这些改变,排列,添加和部分组合。 Claims and claims hereafter, to be construed as including all such modifications within the true scope thereof, permutations, additions and sub-combinations.

Claims (23)

1. 一种控制显示器的设备,包括一个光源层和一个显示层,该设备包括: 一个控制器,配置为: 从图像数据确定用于光源层光源的第一驱动值; 确定光源层有效亮度模式在比显示层空间分辨率低的第一空间分辨率; 增加有效亮度模式的空间分辨率到对应于显示层分辨率的第二空间分辨率;以及基于至少图像数据和有效亮度模式,确定用于显示层的第二驱动值; 第一接口,可连接到光源层,以施加第一驱动值到光源层;以及第二接口,可连接到显示层,以施加第二驱动值到显示层。 1. A display control apparatus, comprising a light source layer and a display layer, the apparatus comprising: a controller configured to: determine from the image data value for driving a first light source layer; determining effective luminance pattern light source layer in the lower spatial resolution than the display layer of a first spatial resolution; effective luminance pattern to increase spatial resolution corresponding to the display resolution of a second layer spatial resolution; and based on at least the image data and the effective luminance pattern, determining a second drive value display layer; a first interface layer can be connected to a light source to a first drive value is applied to the light source layer; and a second interface can be connected to the display layer to a second drive value is applied to the display layer.
2. 根据权利要求l的设备,包括连接到第一接口的光源层和连接到第二接口的显示层。 2. l The apparatus according to claim, comprising a light source connected to the first interface layer and the second layer is connected to the display interface.
3. 根据权利要求2的设备,其中光源层包括多个可分别控制的光源。 3. The apparatus according to claim 2, wherein the light source comprises a plurality of layers may be separately controlled.
4. 根据权利要求2的设备,其中光源层包括一个发光二极管的阵列。 4. The apparatus of claim 2, wherein the light source layer comprises a light emitting diode array.
5. 根据权利要求2的设备,其中光源层包括一个光源和一个调制器,调制器配置为调制由光源发射的光。 5. The apparatus according to claim 2, wherein the light source comprises a light source and a layer of a modulator, a modulator configured to modulate light emitted by the light source.
6. 根据权利要求1到5任何之一的设备,其中显示层包括一个传输类型调制器,其具有多个可分别控制的象素。 6. The apparatus of any one of claims 1 to 5, wherein the display layer comprises a transmission type modulator, having a plurality of pixels may be individually controlled.
7. 根据权利要求1到6任意一个的设备,其中该显示层包括一个LCD面板。 7.1 to 6 apparatus according to any one of claims, wherein the display layer includes an LCD panel.
8. 根据权利要求1到5任何之一的设备,其中显示层的分辨率至少4倍于第一空间分辨率。 8. The apparatus of any one of claim 15, wherein the display layer is at least 4 times the resolution of the first spatial resolution.
9. 根据权利要求8的一种设备,其中在二维的每一维上显示层的分辨率至少8倍于第一空间分辨率。 An apparatus according to claim 8, wherein the layer is at least 8 times the resolution of a first display on the two-dimensional spatial resolution in each dimension.
10. 根据权利要求1到9任何之一的设备,包括用于通过在定义有效亮度模式的数据上执行插值来增加有效亮度模式的空间分辨率的装置。 10. The apparatus of any one of claims 1 to 9, comprising means for performing spatial interpolation on the data defining effective luminance pattern to increase the resolution of the effective luminance pattern through.
11. 根据权利要求l到IO任何之一的设备,包括一个控制器可存取的数据存储器,并包含定义光源层光源的点扩展函数的多个分量的信息,其中控制器配置为分别估算并组合与每个分量相对应的对有效亮度模式的贡献。 L according to claim any one of the IO device, comprising a data memory access controller, and comprising a plurality of information components of light source layer defines source point spread function, wherein the controller is configured to estimate, respectively, and in combination with the relative contribution of each component should be effective luminance pattern.
12. 根据权利要求11的设备,其中每个分量是高斯分量。 12. The apparatus according to claim 11, wherein each component is a Gaussian component.
13. 根据权利要求12的设备,包括一个硬件处理器,其提供在高斯分量上直接运算的函数。 13. The apparatus of claim 12, comprising a hardware processor, which provides a Gaussian function in a direct calculation.
14. 根据权利要求l到13任何之一的设备,包括一个增采样器, 用于增加与每一分量对应的对有效亮度模式贡献的空间分辨率到第二空间分辨率。 L according to claim any one of the device 13, by including a sampler for increasing space and each component of the effective luminance pattern corresponding to the contribution to the resolution of the second spatial resolution.
15. 根据权利要求l到14任何之一的设备,包括用来确定对应于数据的高阶部分的有效亮度模式分量和对应于数据的低阶部分的有效亮度模式分量的装置。 15. The apparatus as claimed in any one of claims l to 14, comprising means for determining data corresponding to the high-order portion of the effective luminance pattern corresponding to the low order component and the portion of the effective luminance pattern data component.
16. 根据权利要求15的设备,其中用来确定对应于数据的高阶部分的有效亮度模式分量的装置包括软件指令,该指令使得控制器的处理器在8位定义域中首先执行运算。 16. The apparatus according to claim 15, wherein the means for determining an effective luminance pattern corresponding to the data component of the high-order portion of the software includes instructions that cause the processor of the controller 8 performs operation defined in the first field.
17. 根据权利要求15或16的设备,其中用来确定对应于数据的低阶部分的有效亮度模式分量的装置包括软件指令,该指令使得控制器的处理器在8位定义域中首先执行运算。 The processor 17. The apparatus according to claim 15 or claim 16, wherein the means for determining an effective luminance pattern corresponding to the data component of the low order portion of the software includes instructions that cause the controller to perform an operation in the first eight field defined .
18. —种在显示器上显示图像的方法,包括一个光源层和一个显示层,该方法包括:至少部分基于图像数据确定用于光源层光源的驱动值; 通过包括以下步骤的方法确定光源层有效亮度模式: 对于光源层的光源点扩展函数的多个分量中的每一个,确定对有效亮度模式的贡献;以及组合每个分量对有效亮度模式的贡献,产生有效亮度模式数据;以及至少部分基于有效亮度模式数据和图像数据,确定用于显示层的驱动值。 18. - The method of image types on the display, comprising a light source layer and a display layer, the method comprising: determining at least in part based on the image data value for driving the light source layer; determining light source layer by a method comprising the steps of effective brightness mode: for each of a plurality of component light point spread function of the light source layer, determining the contribution to the effective luminance pattern; and a combination of contribution of each component of the effective luminance pattern, generating effective luminance pattern data; and at least in part, on effective luminance pattern data and image data, determining drive values ​​for the display layer.
19. 显示器设备,包括: 一个光源层一个显示层, 一个控制器,配置为:至少部分地基于图像数据,确定用于光源层光源的第一驱动值; 通过包含以下步骤的方法,确定该光源层的有效亮度模式: 对光源层的光源的点扩展函数的多个分量的每一个,确定对有效亮度模式的贡献;以及组合每一分量对有效亮度模式的贡献,产生有效亮度模式数据;以及至少部分地基于有效亮度模式数据和图像数据,确定用于显示层的第二驱动值;一个第一接口,其连接到光源层,以向光源层施加第一驱动值;以及一个第二接口,其连接到显示层,以向显示层施加第二驱动值。 19. A display apparatus comprising: a light source layer a layer of a display, a controller configured to: at least partially based on the image data, determining a first value for the drive source of light source layer; by a method comprising the steps of determining that the light source layer is effective luminance pattern: for each of a plurality of components of the point spread function of the light source layer, determine the contribution to the effective luminance pattern; and a combination of contribution of each component of the effective luminance pattern, generating effective luminance pattern data; at least partially based on the effective luminance pattern data and image data, determining a second value for driving the display layer; a first interface, which is connected to the source layer to a first drive value is applied to the light source layer; and a second interface, which is connected to the display layer to a second drive value is applied to the display layer.
20. —种在显示器上显示图像的方法,该显示器包括一个光源层和一个显示层,该方法包括:至少部分地基于图像数据,确定用于光源层的光源的驱动值; 通过包括以下步骤的方法,确定光源层的有效亮度模式: 对于光源层的多个光源中的每一个:分别确定一组点扩展函数值的高阶和低阶部分对有效亮度模式的贡献;以及组合高阶和低阶点扩展函数值对有效亮度模式的贡献,产生有效亮度模式数据;以及至少部分地基于有效亮度模式数据和图像数据,确定用于显示层的驱动值。 20. - The method of species displayed on the display image, the display comprising a light source layer and a display layer, the method comprising: based on the image data, determining drive values ​​for the light source layer is at least partially; by comprising the steps of methods to determine the effective luminance pattern of the light source layer: a plurality of light sources for each of the layers: determine the contribution of each high and low order portions of a set value of the point spread function of the effective luminance pattern; and a combination of low and high order order value contribution to the point spread function of the effective luminance pattern, generating effective luminance pattern data; and at least partially based on the effective luminance pattern data and image data, determining drive values ​​for the display layer.
21. 显示器设备,包括: 一个光源层一个显示层。 21. A display apparatus comprising: a light source layer a layer of a display. 一个控制器,配置为:至少部分地基于图像数据,确定用于光源层光源的第一驱动值; 通过包含以下步骤的方法,确定该光源层的有效亮度模式: 对光源层的多个光源的每一个:分别确定一组点扩展函数值的高阶和低阶部分对有效亮度模式的贡献;以及组合高阶和低阶点扩展函数值对有效亮度模式的贡献,产生有效亮度模式数据;以及至少部分地基于该有效亮度模式数据和图像数据,确定用于显示层的第二驱动值;一个第一接口,连接到光源层,以向光源层施加第一驱动值;和一个第二接口,连接到显示层,以向显示层施加第二驱动值。 A controller configured to: at least partially based on the image data, determining a value of a first drive source of light source layer; by a method comprising the steps of determining an effective luminance pattern of the light source layer: a plurality of layers of light sources each of: determining the contribution of each high and low order portions of a set value of the point spread function of the effective luminance pattern; and a combination of high and low order contribution of the point spread function of the value of the effective luminance pattern, generating effective luminance pattern data; at least in part on the effective luminance pattern data and image data, determining a second value for driving the display layer; a first interface connected to the light source layer, a first drive value is applied to the light source layer; and a second interface, connected to the display layer to a second drive value is applied to the display layer.
22. —种方法,包括任何新的、有用的和发明的步骤、行为、步骤和/或行为的组合、在此所迷的步骤和/或行为的子组合。 22. The - method, comprising the step of any new, useful and inventive, sub-combinations act, step, and / or behavior, herein the step of fans and / or behavior.
23. —种设备,包括任何新的、有用的和发明的特性、特性和/或装置的组合,或在此所述的特性和/或装置的子组合。 23 - a combination of devices each including any features of the new, inventive and useful, properties and / or apparatus, or characteristic described herein and / or sub-combinations of devices.
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