Time-multiplexing display module for high-density directional display

Time-multiplexing display module for high-density directional display
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DOI：
10.1117/12.767881
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发表时间：
2008-02
期刊：
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影响因子：
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通讯作者：
Tsubasa Kanebako;Y. Takaki
Tsubasa Kanebako;Y. Takaki
中科院分区：
其他
文献类型：
--
作者：
Tsubasa Kanebako;Y. Takaki

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提出了一种新的基于时分复用技术的高密度定向（HDD）显示器，以降低用于HDD显示器的多投影系统的复杂性。HDD显示器是一种自然的三维显示器，其已经被开发用于解决由前视-聚散冲突引起的视觉疲劳问题。所提出的HDD显示器由多个时分复用显示模块组成。每个模块由LED阵列、DMD、透镜和光圈阵列组成。DMD以高帧速率显示多个方向图像，并且LED与DMD同步地相继发光。孔是二维排列的，并且它们的水平位置不同。LED以相同的方式布置。DMD显示的所有方向图像都通过不同的孔径。多个模块以不同的水平位置二维地布置，并且所有图像由公共透镜组合。垂直扩散器用作显示屏以消除垂直显示方向的差异。所有方向性图像叠加在垂直漫射器上，并且被给予不同的水平显示方向。每个模块以60 Hz的帧速率生成15个方向图像。四个模块组合在一起，以0.31°的角度间距在不同的水平方向上显示60个方向图像。
The new high-density directional (HDD) display using the time-multiplexing technique is proposed to reduce the complexity of the multi-projection system used for the HDD display. The HDD display is a natural three-dimensional display which has been developed to solve the visual fatigue problem caused by the accommodation-vergence conflict. The proposed HDD display consists of multiple time-multiplexing display modules. Each module consists of an LED array, a DMD, lenses, and an aperture array. A number of directional images are displayed by the DMD at a high frame rate and the LED's emit light one after another in synchronization with the DMD. The apertures are arranged twodimensionally, and their horizontal positions are different. The LED's are arranged in a same way. All directional images displayed by the DMD pass through different apertures. Multiple modules are arranged two-dimensionally with the different horizontal positions and all images are combined by a common lens. A vertical diffuser is used as a display screen to cancel the difference of the vertical display directions. All directional images are superimposed on the vertical diffuser, and are given the different horizontal display directions. Each module generates 15 directional images at a frame rate of 60 Hz. Four modules are combined to display 60 directional images in the different horizontal directions with the angle pitch of 0.31°.