Computer graphics processing and selective visual display system – Display peripheral interface input device – Including keyboard
Reexamination Certificate
2005-08-26
2009-12-08
Tran, Henry N (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Including keyboard
C345S173000, C200S0050EA, C200S314000, C040S542000, C040S544000, C341S022000, C341S031000, C455S157200, C455S158500
Reexamination Certificate
active
07629965
ABSTRACT:
A keypad backlighting apparatus includes an electroluminescence layer for lighting an input device of an electronic apparatus. The input device may be a keypad and the electronic apparatus may be a mobile communications terminal. The terminal includes an upper case having a plurality of button holes formed in a predetermined pattern, electroluminescence (EL) keypad on a lower surface of the upper case and having buttons exposed through the button holes. A printed circuit board (PCB) installed adjacent the EL keypad includes a backlight driving circuit for supplying power to the EL keypad. A lower case of the terminal is coupled to the upper case and supports the EL keypad and the PCB.
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KED & Associates LLP
LG Electronics Inc.
Tran Henry N
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