Local Firm Develops Film to Block Convenience Stores’ Cigarette Ads from Being Viewed from Outside
SEOUL, April 12 (Korea Bizwire) — Optical film manufacturer Sangbo Corp. announced that it has developed a special film that selectively prevents cigarette ads in convenience stores from being viewed from outside. The company completed a patent application and established a mass-production system for the target blocking (TB) film after developing it. The TB film’s [...]