Research on intelligent image input device using liquid crystal

本研究得到以下结果：设计了光并行逻辑器件，建立了其基本逻辑系统。该器件由两个液晶单元和三个二向色滤光片依次堆叠而成，通过开关四个波长的入射光即可实现全部二进制逻辑。用于上述装置的工作光的波长数从四个减少到三个，这使得使用实用的二向色滤光片成为可能。然后，制作了实际器件，并成功地进行了各种图像处理。进一步改进了具有光输入功能的逻辑器件。该器件由四个二向色滤波器和三个具有光导层和铁电液晶的液晶面板组成。该装置可实现两个液晶面板之间的光学图像输入和图像处理，处理结果可在第三个液晶面板上进行光学记忆。另外，可以通过从两侧交替输入操作光来进行迭代操作。阐明了上述器件光导层的设计条件。在此条件下，制作了一个1像素的原型器件，并确认了所有期望的操作都成功完成。综上所述，建立了智能图像输入设备的基本概念。验证了该方法的可行性和实际应用的可能性。

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.