Anti-static additive for pressure-sensitive adhesives and its effect on light leakage in liquid crystal display

We investigated the effect of anti-static additive added pressure-sensitive adhesives (PSAs) on light-leakage phenomena for four different PSA sample series of pristine PSA without additive and with each of quinoline, N-hexylpyridinium triflorosulfonylimide, and light controllable anti-static agent. Using a CCD camera apparatus, we found that the anti-static additive added PSAs not only reduce the light leakage but also decrease the surface resistance. Especially, light controllable anti-static agent shows a good anti-light-leakage property and anti-static performance.