公开(公告)号：EP0769713B1

公开(公告)日：2003-03-26

申请号：EP96116491.0

申请日：1996-10-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Miller, Rodney D. ,  Cleveland, Harlan P. ,  Gale, Richard O. ,  Burton, Mark L.

IPC: G02B26/08

CPC classification number: G02B26/0841

公开(公告)号：EP0749248A1

公开(公告)日：1996-12-18

申请号：EP96109498.4

申请日：1996-06-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Jones, Girault W., Jr. ,  Marshall, Stephen W. ,  Burton, Mark L.

IPC: H04N9/31

CPC classification number: G09G3/2033 ,  G09G3/2022 ,  G09G3/34 ,  G09G3/346 ,  G09G5/18 ,  G09G2310/0235 ,  G09G2310/08 ,  G09G2320/0266 ,  H04N9/30 ,  H04N9/3114 ,  H04N9/312

Abstract: 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.

Abstract translation: 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。 基于显示周期来选择最佳帧序列模式，以最小化在显示图像中产生的伪影，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。

公开(公告)号：EP0769713A3

公开(公告)日：1999-03-03

申请号：EP96116491.0

申请日：1996-10-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Miller, Rodney D. ,  Cleveland, Harlan P. ,  Gale, Richard O. ,  Burton, Mark L.

IPC: G02B26/08

CPC classification number: G02B26/0841

Abstract: 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.

公开(公告)号：EP0769713A2

公开(公告)日：1997-04-23

申请号：EP96116491.0

申请日：1996-10-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Miller, Rodney D. ,  Cleveland, Harlan P. ,  Gale, Richard O. ,  Burton, Mark L.

IPC: G02B26/08

CPC classification number: G02B26/0841

Abstract: 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.

Abstract translation: 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，其足以维持反射镜/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，使得反射镜朝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）以允许反射镜/磁轭从着陆焊盘（82）离开中立位置足够的距离。 通过在相同状态的镜像转换期间通过防止入射光逸出到显示孔径中来改善装置的操作可靠性，而不会在反向状态镜转换期间阻碍镜的交叉。 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。

公开(公告)号：EP0905674B1

公开(公告)日：2009-02-11

申请号：EP98118315.5

申请日：1998-09-28

Applicant: Texas Instruments Incorporated

Inventor： Tew, Claude E. ,  Dudley, Dana ,  Elliot, Keith H. ,  Burton, Mark L.

IPC: G09G3/34

CPC classification number: G09G3/3406 ,  G09G3/2011 ,  G09G3/2018 ,  G09G3/2025 ,  G09G3/34 ,  G09G2310/0237 ,  G09G2310/066 ,  G09G2320/0261 ,  G09G2320/0633 ,  G09G2320/064

公开(公告)号：EP0772181A1

公开(公告)日：1997-05-07

申请号：EP96117623.7

申请日：1996-11-04

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Burton, Mark L. ,  Doherty, Donald B.

IPC: G09G3/34

CPC classification number: G09G3/346 ,  G09G3/2018 ,  G09G2310/061 ,  H04N5/7458 ,  H04N2005/7466

Abstract: 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.

Abstract translation: 一种使微机械空间光调制器在小于其建立时间的时段内显示数据的方法。 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）。 在接收到第二个脉冲之后，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。 在另一个实施例中，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。

公开(公告)号：EP0772181B1

公开(公告)日：2006-05-10

申请号：EP96117623.7

申请日：1996-11-04

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Burton, Mark L. ,  Doherty, Donald B.

IPC: G09G3/34

CPC classification number: G09G3/346 ,  G09G3/2018 ,  G09G2310/061 ,  H04N5/7458 ,  H04N2005/7466

公开(公告)号：EP0749248B1

公开(公告)日：2000-09-06

申请号：EP96109498.4

申请日：1996-06-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Jones, Girault W., Jr. ,  Marshall, Stephen W. ,  Burton, Mark L.

IPC: H04N9/31

CPC classification number: G09G3/2033 ,  G09G3/2022 ,  G09G3/34 ,  G09G3/346 ,  G09G5/18 ,  G09G2310/0235 ,  G09G2310/08 ,  G09G2320/0266 ,  H04N9/30 ,  H04N9/3114 ,  H04N9/312

公开(公告)号：EP0766222A1

公开(公告)日：1997-04-02

申请号：EP96115366.5

申请日：1996-09-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Doherty, Donald B. ,  Burton, Mark L. ,  Markandey, Vishal

IPC: G09G3/34

CPC classification number: G09G3/2022 ,  G09G3/2007 ,  G09G3/2033 ,  G09G3/34 ,  G09G3/346 ,  G09G2320/0266

Abstract: 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. 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). The result of the subtraction is a light difference function, which can be expressed as a series function. Mathematical expressions using the series function correlate to various optical characteristics.

Abstract translation: 评价脉宽调制图案用于空间光调制器显示装置的方法。 该方法利用一光差序列函数的。 这一系列功能由表示“ON”或显示元件作为光功能的“OFF”时间获得。 两个搜索光功能可以被减去，以相同的显示元件（帧间）上比较两个不同的图案或比较在不同的显示元件（帧内）相同的模式。 该相减的结果是光差函数，其可以是过表达为一系列功能。 使用系列函数的数学表达式关联到各种光学特性。