(ShareCast News) - Zytronic reported an improvement in revenue for the second half of the financial year.The AIM listed touch sensor manufacturer released a trading statement on Thursday ahead of the group's full year results to 30 September.It said that second half revenues were boosted in the fourth quarter, contributing to a 13% increase in total revenues for the year.As a result, the company is expected to report pre-tax profit for the full year "materially ahead of market expectations".The company's full year results will be released on 8 December.At 1041 BST, shares in the company surged 36.35p (11.98%) to 339.85p per share.