| 摘要 |
FIELD: electric engineering. ^ SUBSTANCE: button unit includes multiple switch buttons, lightguide sheet installed under at least one of multiple switch buttons, light radiator intended for generation of light at the edge of lightguide sheet, at that lightguide sheet directs light from light radiator in direction of at least one of multiple switch buttons, electronic circuit wafer generated under lightguide sheet, and multiple switches formed on substrate for electronic circuit, at that every of multiple switches corresponds to one of multiple switch buttons. Lightguide sheet is installed above the top section of every one of multiple switches. ^ EFFECT: development of button unit that makes it possible to reduce quantity of optical sources and value of consumed energy, by means of lightguide element application in button unit, and mobile terminal, in which this button unit is installed. ^ 18 cl, 5 dwg |
