[21a-P2-1~52] 1.2 Education

[21a-P2-8] Pattern analysis of transparent electrode in touch panel using laser diffraction projection

〇Kenji Kuriyama¹, Mituo Suzuki² (1.Shizuoka Univ., 2.Fukushima College)

Keywords:laser diffraction projection,transparent electrode in touch panel,Two-dimensional diffraction grating

The transparent electrode is utilized to the touch panels of smart phones, and new technique realizing the quick measurement of the transparent electrode is required. However, it takes a long time to analyze the whole panel in the conventional method using a microscope, since the observation field of view is narrow. In this work, we use a laser diffraction projection method. In this method, a laser beam is irradiated to the whole panel, and the diffraction light is projected on a screen. To analyze the diffraction pattern, we propose a method using one image taken by CCD camera