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Research on intelligent image input device using liquid crystal

液晶智能图像输入装置的研究

基本信息

批准号：
02452170
负责人：
UCHIDA Tatsuo
金额：
$ 3.78万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1991
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-02452170/
关键词：
Liquid Crystal Optical Logic Device Ferroelectric Liquid Crystal Image Processing Image Input 画像入力

项目摘要

The following results were obtained by this research.1. Optical parallel logic device was devised and its fundamental logic system was established. This device was composed of two liquid crystal cells and three dichroic filters stacked by turns, and it could execute all binary logic by switching four wavelength of incident light.2. Number of wavelength of the operational light for the above mentioned device was decreased from four to three, which enabled to use practical dichroic filters. Then, actual device was fabricated and various image processing was successfully done.3. Further progressed logic device with an optical input function was devised. This device was composed of four dichroic filters and three liquid crystal panel with photoconductive layer and ferroelectric liquid crystal. In this device, optical image input and image processing between two liquid crystal panel were possible, and moreover the processed results could be optically memorized on the third liquid crystal panel. In addition, iterative operation can be done by inputting operational light from both sides alternatively.4. Design condition of the photoconductive layer for the above mentioned device was clarified. According to this condition, a prototype device with one pixel was fabricated, and all desired operation was confirmed to be successfully done.In conclusion, fundamental concept of an intelligent image input device has been established. In addition, its operation was confirmed and possibility of the practical application has been shown.

本研究取得了以下研究成果：1。设计了光学并行逻辑器件，建立了其基本逻辑系统。该器件由两个液晶盒和三个二向色性滤光片依次堆叠而成，通过切换四个波长的入射光就可以执行所有的二进制逻辑。上述装置的工作光波长从四个减少到三个，从而使实用的二向色性滤光片得以使用。然后制作了实际器件，并成功地进行了各种图像处理。进一步设计了具有光学输入功能的逻辑器件。该器件由四个二向色性滤光片和三个带光电导层的液晶屏和铁电液晶组成。该装置实现了两个液晶屏之间的光学图像输入和图像处理，并且处理结果可以在第三个液晶屏上进行光学存储。此外，还可以通过交替从两侧输入操作光来进行迭代操作。阐明了上述器件的光导层的设计条件。在此基础上，制作了一个单像素的样机，并验证了所需操作的正确性。最后，建立了智能图像输入设备的基本概念。并对其运行进行了验证，展示了其实际应用的可能性。