Touchscreens (IMAGE) American Chemical Society Caption Scientists have developed a test for evaluating and improving the performance of smudge- and glare-resistant screens used in smart phones, portable media players and other devices. Credit The American Chemical Society Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.