SINGLE BUTTON READ/BACKLIGHT CONTROL FOR DISPLAY PAGERS
Original Publication Date: 1991-Apr-01
Included in the Prior Art Database: 2001-Dec-07
In a display pager, the use of an LCD results in the need to provide backlighting for use in low ambient light environments. Current products have a button that when pressed activates the backlight. This button is different from the button used to step through messages. This situation could be improved by sim- ply requiring the user to press and hold the "read message" button to activate the backlight. That is, press and release to cause the message to be displayed. Press and hold to cause the message to be displayed and after, for example, two seconds, activate the backlight. Deactivation of the backlight could take place upon button release or after some pre-set period of button inactivity (as in some of today's products). Figure 1 shows an embodiment of a pager utilizing this feature.