Newton ring prevention film and touch panel

Details Newton ring prevention film and touch panel Newton ring prevention film and touch panel

2005-08-30

2005-08-30

Wu, Xiao (Department: 2674)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C345S176000, C345S177000, C178S018080, C428S001100

Reexamination Certificate

active

06937230

ABSTRACT:
A Newton ring prevention film comprising a transparent film in which projections are formed by surface roughening, a transparent film in which projections are formed by providing a projection coating layer, or either of these transparent films wherein a transparent electroconducting layer is further provided on the surface in which the projections are formed, and wherein the average surface roughness (RA)/inter-projection distance (SM) of the surface comprising the projection is 0.8×10−3-2.0×10−3, and the inter-projection distance (SM) is 150 μm or less. Further, a touch panel is disclosed wherein a transparent electroconducting layer is provided as an upper electrode substrate and a transparent film or glass wherein a transparent electroconducting layer is provided as a lower electrode substrate, transparent electrode layers face the upper electrode substrate and lower electrode substrate at a predetermined interval, the average surface roughness (RA)/inter-projection distance (SM) of the transparent electrode layer surface of at least one of the upper electrode substrate and lower electrode substrate surface is 0.8×10−3-2.0×10−3, and the inter-projection distance (SM) is 150 μm or less.

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