TOUCH LOCATING METHOD, TOUCH SCREEN, TOUCH SYSTEM AND DISPLAY DEVICE

摘要

A touch locating method, a touch screen, a touch system and a display device are provided. The method includes: obtaining at least two images of a touch detection region at different positions around the touch detection region; when the image is the first frame image which is obtained, processing the image to obtain position information of the feature region in the image; when the image is not the first frame image, processing the image, obtaining feature information of pixels within the feature region according to the position information of the feature region, obtaining data of an indicator according to the feature information of the pixels within the feature region, and obtaining the position information of the indicator in the touch detection region according to the data of the indicator. This method can reduce production cost of the touch screen and improve resolution of the touch screen.