Infrared touch screen

The utility model relates to a touch screen, which is characterized in that an infrared receiving lamp obliquely facing a long side provided with an infrared emission lamp and an infrared emission lamp obliquely facing a long side provided with the infrared receiving lamp are arranged on a short side of a screen, an infrared light net is formed through oblique scanning, and a contact coordinate is obtained by utilizing the position of a contact in the light net; the utility model solves the problem of inaccurate contact position caused by tiny deformation or arching when the infrared touch screen is spliced, and is suitable for intelligent blackboards and relatively long infrared touch screens. 本实用新型涉及触摸屏，本实用新型通过在屏幕的短边安装斜对着安装有红外发射灯的长边的红外接收灯和斜对着安装有红外接收灯的长边的红外发射灯，通过斜扫形成红外光网，利用触点在光网中的位置获得触点坐标，解决了红外触摸屏拼接时微小形变或起拱导致触点位置不精确的问题，本实用新型适用于智慧黑板和长度相对较长的红外触摸屏。