In a display and input device (CP) displaying information on a display (DP) and performing changing of the information and communication through switch operating means (CSW1), the switch operating means (CSW1) are arranged on the left and right edges of the display (DP), opaque members among members...http://www.google.ca/patents/US6437774?utm_source=gb-gplus-sharePatent US6437774 - Display and input device and display and input system
