PORTABLE COMPUTER WITH KEYBOARD ILLUMINATION Russian patent published in 2004 - IPC

Abstract RU 2234120 C2

FIELD: computer engineering.

SUBSTANCE: device has light source for keyboard illumination, holder of light source mounted by upper end of display and having a wall with an aperture for passing of light emitted by light source mounted on the inner side of said wall of holder and made in form of light-emitting diode with consumption of electric energy from accumulator of computer.

EFFECT: effective illumination of keyboard with no negative influence on visual perception of information shown on the liquid-crystalline screen, computer uses little energy with enabled illumination, computer remains mobile.

6 cl, 15 dwg

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RU 2 234 120 C2

Authors

Takakhashi Tomojuki

Jamazaki Kazukhiko

Eshida Shigeru

Nakazava Jukifumi

Kavashima Nobujuki

Dates

2004-08-10Published

2000-07-03Filed