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학술지 Design of Cell-Patterns for Large-Sized Window Unified Touch Screen Panels with High Sensitivity
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저자
이창호, 홍찬화, 나윤빈, 박정진, 권혁인, 정우석
발행일
201711
출처
Journal of Nanoscience and Nanotechnology, v.17 no.11, pp.7865-7868
ISSN
1533-4880
출판사
American Scientific Publishers (ASP)
DOI
https://dx.doi.org/10.1166/jnn.2017.15058
초록
We examined the effect of cell-pattern shapes on the touch sensitivity of large-sized window-unified capacitive-type touch screen panels. We constructed 3 × 3 touch cell structures with a 1 m-thick transparent electrode, 1.5 m-thick insulator and a 1 m-thick metal bridge, and analyzed the capacitance changes on the pattern shape, dummy area and bridge width by using Q3D extractor. In order to increase the capacitance change, we investigated three types of cell patterns (cross-polygon, cross-bar, cross-square), which showed a capacitance change of 3.3% in the cross-polygon pattern, 5.2% in the cross-bar one, and 5.5% in the cross-square one, respectively. After modifying the dummy patterns, the cross-square pattern had the high capacitance change of 19.2%, as compared with that of 5.8% in the typical diamond pattern. Finally, we fabricated a 24 inch capacitive-type G2 TSP with a less than 1 mm accuracy and a five multi-touch performance maintaining high sensitivity.
키워드
Capacitance Change, Cross-Square Pattern, Diamond Pattern, Q3D Extractor, Window-Unified Capacitive-Type Touch Screen Panel
KSP 제안 키워드
Capacitive-type, Cell patterns, Cell structure, High Sensitivity, Multi-touch, high capacitance, square pattern, touch performance, touch screen panel(TSP), touch sensitivity, transparent electrode