Telephone terminal device
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKazumi Kawano, Hiroshi Harada
Life of this patent
Estimating the term…
Abstract
The exit light from the illuminating part illuminates each key button as a spot light. Hence, leak of light to the surrounding is prevented. As a result, the visual recognition is extremely improved, and easy-to-read type data can be displayed. A telephone terminal device includes a circuit board, and a plurality of key buttons disposed at the upper side of the circuit board. The circuit board has a through-hole, and the through-hole is positioned immediately beneath at least one key button of the plurality of key buttons, and each key button is illuminated by the light passing the through-hole.
Claims19
A telephone terminal device comprising:
- a plurality of key buttons,
- wherein said plurality of key buttons are selectively illuminated such that the plurality of keys illuminated form an illumination pattern corresponding to data selected from the group consisting of a numeral, a character, a symbol and a graphic pattern.
A telephone terminal device comprising:
- a plurality of key buttons,
- a circuit board responsible for function control disposed beneath said plurality of key buttons, said circuit board having a plurality of illumination elements for selectively illuminating said plurality of key buttons, each of said plurality of illumination elements being disposed beneath a given one of said key buttons,
- wherein said plurality of key buttons are selectively illuminated such that the plurality of keys illuminated form an illumination pattern corresponding to data selected from the group consisting of a numeral, a character, a symbol and a graphic pattern.
Dependencies are inferred from the claim text.