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公开(公告)号：US06181367B2
公开(公告)日：2001-01-30
申请号：US09354968
申请日：1999-07-16
IPC分类号： H04N1300
CPC分类号： G09F19/12 , G02B5/30 , G02B27/017 , G02B27/0172 , G02B2027/011 , G02B2027/0132 , G02B2027/0178 , G02F1/011 , G02F1/133615
摘要： A video image viewing device includes first and second glass plates having a layer of liquid crystal therebetween. A plurality of laser diodes extending along a line near one edge of the first plate are selectively illuminated at an intensity corresponding to the amplitude of a video signal during each of a plurality of video lines. The light propagates through the first plate via total internal reflection not entering the liquid crystal layer until it reaches an area where the refractive index of the liquid crystal is selectively modified. The refractive index may be modified by selectively energizing each of a plurality of horizontal strip electrodes vertically spaced from each other. The electrodes are sequentially energized to frustrate the total internal refraction and thereby cause the light to be transmitted through the liquid crystal layer into the second plate at a location corresponding to the location of video line in a video frame of the video signal. One or more holographic optical elements diffract light passing into the second plate to a predetermined direction, thereby forming a unique virtual image point location for each combination of single electrode pair activation and laser diode activation.
摘要翻译： 视频图像观看装置包括在其间具有液晶层的第一和第二玻璃板。 在多个视频行的每一个期间，以与视频信号的幅度对应的强度选择性地照射沿着靠近第一板的一个边缘的线延伸的多个激光二极管。 光经由不进入液晶层的全部内反射通过第一板传播，直到其到达选择性地改变液晶的折射率的区域。 可以通过选择性地激励彼此垂直间隔开的多个水平条状电极中的每一个来修改折射率。 电极依次被通电以阻止整个内部折射，从而使光在与视频信号的视频帧中的视频行的位置相对应的位置处透过液晶层进入第二板。 一个或多个全息光学元件将通过第二板的光衍射到预定方向，从而为单电极对激活和激光二极管激活的每个组合形成独特的虚像点位置。
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公开(公告)号：US5973727A
公开(公告)日：1999-10-26
申请号：US856022
申请日：1997-05-13
IPC分类号： G02F1/13 , G02B5/30 , G02B27/00 , G02B27/01 , G02B27/02 , G02B27/22 , G02F1/01 , G02F1/13357 , G09F9/00 , G09F19/12 , G09G3/20 , H04N5/66 , H04N9/30 , H04N13/04 , H04N13/00
CPC分类号： G09F19/12 , G02B27/017 , G02B27/0172 , G02F1/011 , G02B2027/011 , G02B2027/0132 , G02B2027/0178 , G02B5/30 , G02F1/133615
摘要： A video image viewing device includes first and second glass plates having a layer of liquid crystal therebetween. A plurality of laser diodes extending along a line near one edge of the first plate are selectively illuminated at an intensity corresponding to the amplitude of a video signal during each of a plurality of video lines. The light propagates through the first plate via total internal reflection not entering the liquid crystal layer until it reaches an area where the refractive index of the liquid crystal is selectively modified. The refractive index may be modified by selectively energizing each of a plurality of horizontal strip electrodes vertically spaced from each other. The electrodes are sequentially energized to frustrate the total internal refraction and thereby cause the light to be transmitted through the liquid crystal layer into the second plate at a location corresponding to the location of video line in a video frame of the video signal. One or more holographic optical elements diffract light passing into the second plate to a predetermined direction, thereby forming a unique virtual image point location for each combination of single electrode pair activation and laser diode activation.
摘要翻译： 视频图像观看装置包括在其间具有液晶层的第一和第二玻璃板。 在多个视频行的每一个期间，以与视频信号的幅度对应的强度选择性地照射沿着靠近第一板的一个边缘的线延伸的多个激光二极管。 光经由不进入液晶层的全部内反射通过第一板传播，直到其到达选择性地改变液晶的折射率的区域。 可以通过选择性地激励彼此垂直间隔开的多个水平条状电极中的每一个来修改折射率。 电极依次被通电以阻止整个内部折射，从而使光在与视频信号的视频帧中的视频行的位置相对应的位置处透过液晶层进入第二板。 一个或多个全息光学元件将通过第二板的光衍射到预定方向，从而为单电极对激活和激光二极管激活的每个组合形成独特的虚像点位置。
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