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1. 发明授权

US5764208A Reset scheme for spatial light modulators 失效
标题翻译：空间光调制器复位方案
公开(公告)号：US5764208A
公开(公告)日：1998-06-09
申请号：US736169
申请日：1996-10-23
申请人： Mark L. Burton , Donald B. Doherty
发明人： Mark L. Burton , Donald B. Doherty
IPC分类号： H04B10/10 , G09G3/20 , G09G3/34 , H04B1/04 , H04B10/105 , H04B10/22 , H04N5/74
CPC分类号： G09G3/346 , H04N5/7458 , G09G2310/061 , G09G3/2018 , H04N2005/7466
摘要： A method for causing a micromechanical spatial light modulator to display data for a period less than its settling time. The modulator elements receive a first pulse (40) that causes them to release from their previous state, a bias voltage is removed and reapplied, allowing the elements to move to the unaddressed state, and then the elements receive a second pulse (46). After receiving a second pulse, the elements assume an unaddressed state. In one embodiment, new address data is loaded during this unaddressed state, after which a bias is reapplied causing them to achieve the state corresponding to the new state. In another embodiment, the previous addresses are cleared during the unaddressed state, forcing the elements into an OFF state. In either embodiment, a reset pulse may be applied after either the load or clear step.
摘要翻译：一种使微机械空间光调制器在小于其建立时间的时间内显示数据的方法。调制器元件接收使其从先前状态释放的第一脉冲（40），去除偏置电压并重新施加，允许元件移动到未处理状态，然后元件接收第二脉冲（46）。在接收到第二脉冲之后，这些元件呈现未处理状态。在一个实施例中，在该未处理状态期间加载新的地址数据，之后重新应用偏置，使得它们实现对应于新状态的状态。在另一实施例中，先前的地址在未处理状态期间被清除，迫使元件进入OFF状态。在任一实施例中，可以在加载或清除步骤之后施加复位脉冲。

2. 发明授权

US06014128A Determining optimal pulse width modulation patterns for spatial light modulator 失效
标题翻译：确定空间光调制器的最佳脉宽调制模式
公开(公告)号：US06014128A
公开(公告)日：2000-01-11
申请号：US719529
申请日：1996-09-27
申请人： Donald B. Doherty , Mark L. Burton , Vishal Markandey
发明人： Donald B. Doherty , Mark L. Burton , Vishal Markandey
IPC分类号： G09G3/20 , G09G3/34 , H04N9/64
CPC分类号： G09G3/2022 , G09G3/34 , H04N9/641 , G09G2320/0266 , G09G3/2018
摘要： A method of evaluating pulse width modulation patterns for a spatial light modulator display device. The method makes use of a light difference series function. This series function is obtained by representing on or off times of a display element as a light function. (FIG. 3). Two such light functions can be subtracted to compare two different patterns on the same display element (interframe) or to compare the same pattern on different display elements (intraframe). (FIG. 4). The result of the subtraction is a light difference function (FIG. 5), which can be expressed as a series function. Mathematical expressions using the series function correlate to various optical characteristics.
摘要翻译：一种用于评估空间光调制器显示装置的脉冲宽度调制图案的方法。该方法利用光差序列功能。通过将显示元件的开启或关闭时间表示为光功能来获得该串联功能。（图3）。可以减去两个这样的光功能来比较同一显示元件（帧间）上的两个不同图案，或者比较不同显示元素（帧内）上的相同图案。（图4）。减法的结果是光差函数（图5），其可以表示为串联函数。使用串联函数的数学表达式与各种光学特性相关。

3. 发明授权

US5497172A Pulse width modulation for spatial light modulator with split reset addressing 失效
标题翻译：具有分离复位寻址的空间光调制器的脉宽调制
公开(公告)号：US5497172A
公开(公告)日：1996-03-05
申请号：US259402
申请日：1994-06-13
申请人： Donald B. Doherty , Robert J. Gove , Mark L. Burton , Rodney D. Miller
发明人： Donald B. Doherty , Robert J. Gove , Mark L. Burton , Rodney D. Miller
IPC分类号： G09G3/18 , G09G3/20 , G09G3/34 , H04N5/66
CPC分类号： G09G3/2014 , G09G3/2022 , G09G3/2033 , G09G3/34 , G09G3/2018
摘要： A method of implementing pulse-width modulated image display systems (10, 20) with a spatial light modulator (SLM) (15) configured for split-reset addressing. Display frame periods are divided into time slices. Each frame of data is divided into bit-planes, each bit-plane having one bit of data for each pixel element and representing a bit weight of the intensity value to be displayed by that pixel element. Each bit-plane has a display time corresponding to a number of time slices, with bit-planes of higher bit weights being displayed for more time slices. The bit-planes are further formatted into reset groups, each reset group corresponding to a reset group of the SLM (15). The display times for reset groups of more significant bits are segmented so that the data can be displayed in segments rather than for a continuous time. During loading, segments of corresponding bit-planes are temporally aligned from one reset group to the next. The display times for less significant bits are not segmented but are temporally aligned to the extent possible without loading conflicts.
摘要翻译：一种用于分配复位寻址的空间光调制器（SLM）（15）实现脉冲宽度调制图像显示系统（10,20）的方法。显示帧周期分为时间片。每个数据帧被分成位平面，每个位平面具有每个像素元素的一位数据，并且表示要由该像素元素显示的强度值的位权重。每个位平面具有对应于多个时间片的显示时间，其中更高位权重的位平面被显示用于更多的时间片。位平面被进一步格式化为复位组，每个复位组对应于SLM的复位组（15）。更高有效位的复位组的显示时间被分段，以便可以以段而不是连续显示数据。在加载期间，相应位平面的段在时间上从一个复位组到下一个复位组。较低有效位的显示时间不分段，但在不加载冲突的情况下在时间上对齐的程度。

4. 发明授权

US06232963B1 Modulated-amplitude illumination for spatial light modulator 有权
标题翻译：空间光调制器的调制幅度照明
公开(公告)号：US06232963B1
公开(公告)日：2001-05-15
申请号：US09152867
申请日：1998-09-14
申请人： Claude E. Tew , Dana Dudley , Keith H. Elliott , Mark L. Burton
发明人： Claude E. Tew , Dana Dudley , Keith H. Elliott , Mark L. Burton
IPC分类号： G02B2608
CPC分类号： G09G3/3406 , G09G3/2011 , G09G3/2018 , G09G3/2025 , G09G3/34 , G09G2310/0237 , G09G2310/066 , G09G2320/0261 , G09G2320/0633 , G09G2320/064
摘要： Methods of controlling the illumination source (18) of an SLM-based display system (10). It is assumed that the system (10) displays pixel data formatted into a bit-plane format so that all bits of the same bit-weight can be displayed simultaneously. To provide greyscale, the amplitude of the source (18) may be modulated so that bit-planes having greater bit-weights are displayed with more intense illumination than bit-planes having smaller bit-weights (FIGS. 2 and 3). To avoid visual artifacts, the duty cycle of the bit-plane display times may be shortened relative to the frame period. (FIG. 4A). The latter method can be accompanied by a shortening of the duty time of the illumination on SLM (15). (FIG. 4B). The short duty cycle method may be used together with illumination amplitude modulation, or it may be used with the PWM method of providing greyscale.
摘要翻译：控制基于SLM的显示系统（10）的照明源（18）的方法。假设系统（10）显示格式化为位平面格式的像素数据，使得可以同时显示相同位权重的所有位。为了提供灰度级，可以调制源极（18）的振幅，使得具有较大位权重的位平面以比具有较小位权重的位平面（图2和图3）更强的照明显示。为了避免视觉瑕疵，相对于帧周期，位平面显示时间的占空比可能会缩短。（图4A）。后一种方法可以伴随SLM照明的占空比时间的缩短（15）。（图4B）。短占空比方法可以与照明幅度调制一起使用，或者可以与提供灰度级的PWM方法一起使用。

5. 发明授权

US5986721A Producing a rendered image version of an original image using an image structure map representation of the image 失效
标题翻译：用于控制视频显示器的显示帧周期的系统和方法
公开(公告)号：US5986721A
公开(公告)日：1999-11-16
申请号：US660558
申请日：1996-06-12
申请人： Girault W. Jones, Jr. , Stephen W. Marshall , Mark L. Burton
发明人： Girault W. Jones, Jr. , Stephen W. Marshall , Mark L. Burton
IPC分类号： H04N9/12 , G09G3/20 , G09G3/34 , G09G5/18 , H04N9/30 , H04N9/31 , H04N9/126
CPC分类号： G09G3/2033 , G09G3/34 , H04N9/30 , H04N9/3114 , H04N9/312 , G09G2310/0235 , G09G2310/08 , G09G2320/0266 , G09G3/2022 , G09G3/346 , G09G5/18
摘要： A method of controlling the display period of video data, and system thereof, that matches the frame period of displayed video data to the speed of a color wheel. The period of the color wheel is measured to determine the display period. An optimum frame sequence pattern is selected, based on the display period, to minimize the artifacts created in the displayed image while maximizing the portion of the frame period used to display the image data. The display period for each segment of the frame sequence pattern is scaled to fit the period of the color wheel, and each bit of the image data is loaded into the spatial light modulator and displayed at the proper time.
摘要翻译：一种将显示的视频数据的帧周期与色轮的速度相匹配的视频数据的显示周期及其系统的控制方法。测量色轮的周期以确定显示周期。基于显示周期选择最佳帧序列模式，以最小化在显示图像中产生的伪像，同时最大化用于显示图像数据的帧周期的部分。将帧序列图案的每个段的显示周期缩放以适合色轮的周期，并且将图像数据的每个位加载到空间光调制器中并在适当的时间显示。

6. 发明授权

US5771116A Multiple bias level reset waveform for enhanced DMD control 失效
标题翻译：多重偏置电平复位波形，用于增强DMD控制
公开(公告)号：US5771116A
公开(公告)日：1998-06-23
申请号：US729664
申请日：1996-10-21
申请人： Rodney Miller , Richard Gale , Harian Paul Cleveland , Mark L. Burton
发明人： Rodney Miller , Richard Gale , Harian Paul Cleveland , Mark L. Burton
IPC分类号： G02B26/08 , G02B26/00
CPC分类号： G02B26/0841
摘要： A DMD spatial light modulator (20) having an improved reset waveform (80) that improves the electrostatic control over the DMD mirrors (30) during switching states (T3). An intermediate bias level is provided to the yoke (32) and mirror (30) during the mirror reset cycle (T3) which is sufficient to maintain a voltage differential between the mirror/yoke and the address electrodes (26,28,50,52) to dynamically park the mirror during a same-state transition, but which voltage differential is insufficient to overcome the hinge restoration forces during an opposite-state transition such that the mirror releases toward the neutral position and can be captured in the other state upon reapplication of the bias voltage. The transition bias level is maintained for a sufficient time period (T3) to allow the mirror/yoke to release from the landing pads (82) a sufficient distance toward the neutral position. The operating reliability of the device is improved by preventing incident light during same-state mirror transitions from escaping into the display aperture, without impeding the crossover of the mirror during opposite-state mirror transitions. Greater mirror-to-mirror variations can be tolerated without falling outside the mirror arrays acceptable timing operating parameters.
摘要翻译：具有改进的复位波形（80）的DMD空间光调制器（20），其在开关状态（T3）期间改善对DMD反射镜（30）的静电控制。在反射镜复位周期（T3）期间，向磁轭（32）和反射镜（30）提供中间偏置电平，这足以保持反射镜/磁轭与寻址电极之间的电压差（26,28,50,52 ）在相同状态转变期间动态地停放反射镜，但是哪个电压差不足以克服在相反状态转变期间的铰链恢复力，使得反射镜向中性位置释放并且可以在重新应用时以另一状态捕获的偏置电压。过渡偏压电平保持足够的时间段（T3）以允许镜/磁轭从着陆焊盘（82）离开中立位置足够的距离。通过防止在相同状态的镜像转换期间的入射光逃逸到显示孔径中，而不会在反向状态镜像转换期间阻碍镜的交叉而改善设备的操作可靠性。可以容忍更大的镜面到镜面变化，而不会在镜子阵列外面接受可接受的定时运行参数。

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