Electronic luminescence keyboard system for a portable device

Details Electronic luminescence keyboard system for a portable device Electronic luminescence keyboard system for a portable device

G - Physics

06

F

G06F 3/023 (2006.01) F21V 33/00 (2006.01) G06F 1/16 (2006.01) G06F 3/02 (2006.01) H01H 13/70 (2006.01)

Patent

CA 2227067

An electronic luminescence keyboard system (10) in a portable device which includes a plurality of keypads (12) and an illuminated panel (18) which displays information responsive to the pressing of at least one of the plurality of keypads (12) is disclosed. The improvement comprises a conductor element (26) for conducting a portion of the light from the illuminated panel (18) and illuminator element coupled to the conductor element (26) for illuminating the plurality of keypads (12) with the portion of the light from the illuminated panel (18) thereby allowing for observation of keypads (12) on the keyboard (14) when the surrounding area is dimly lit. The ELK system (10) has no effect on the power consumption on the portable device. In an embodiment the ELK system (10) provides for backlighting the keyboard (14). In a second embodiment the ELK system (10) provides light to a top portion of the keypads (12).

La présente invention concerne un système de clavier (10) à luminescence électronique (CLE), faisant partie d'un appareil portable qui comprend plusieurs touches (12) et un panneau éclairé qui affiche des informations en réponse à la pression exercée sur au moins l'une des touches (12). L'amélioration consiste en un élément conducteur (26) qui conduit une partie de la lumière provenant du panneau éclairé (18), et un élément éclairant couplé à l'élément conducteur (26) pour éclairer les touches (12) avec la partie de la lumière provenant du panneau éclairé (18), ce qui permet d'observer les touches (12) de ce clavier (14) quand l'espace environnant est faiblement éclairé. Le système CLE (10) ne produit aucun effet sur la consommation de l'appareil potable. Selon un mode de réalisation, le système CLE (10) assure l'éclairage du clavier (14) par derrière. Selon un deuxième mode de réalisation, le système CLE (10) fournit de la lumière à une partie supérieure des touches (12).

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