材料期刊网

提出将不同的仪器组合达到实时量测液晶显示器辉度及响应时间特性,即利用搭配视效响应滤光片的光探测器检测液晶显示器响应时间,光辉度计量测液晶显示器辉度及色度,此搭配滤光片的探测器有直径10 mm的大感光面积.设计了一种由光纤及准直透镜至光探测器的光学系统,此系统具有较小收光探头体积、调整光点大小及容易对位的优势.采用不同光纤及准直透镜设计收光光点大小,对于检测辉度较小液晶显示器,可选用较大的准直透镜.对于较高空间分辨率或较小待测物,可利用搭配不同光纤及准直透镜达到小的收光光点.根据不同规格要求可设计光纤及光纤两边的准直透镜.分析了检测液晶显示器不同视角及对于此系统的校正方法.该系统将可实现液晶显示器实时多点检测,达到快速、高分辨率的优势.

This paper studies concurrent measurements on luminance and temporal performance of liquid crystal display by closely integrating different instruments. A photodetector with a photopic filter is applied to measure temporal response of LCD. A Photo Reserch is utilized to get luminance and color of LCD. A photodetector with a photopic filter has a large size area such as 10 mm in diameter. This paper designs an optical system which is using optical fibers and collimation lens to connect optical sensor. It has the advantages of smaller probe sizes, adjustable spot sizes and easy to alignment. The measurement spot sizes are adjusted by designing and applying different collimation lens with optical fibers. For measuring lower luminance of LCD, larger beam collimators are selected. For getting higher spatial resolution or measu-ring small target, collimation lens with smaller spot sizes are chosen. The collimators on either sides of the optical fiber for each instrument probe should be designed and arranged according to specifications. In this paper, the effects of different measuring angle toward the LCD panel are analyzed. The corresponding calibration method is developed for the proposed concurrent measurement system. The developed system can be expanded to conduct parallel measurements of multi-points of LCD for high throughput and spatial resolution.