METHOD OF DISPLAYING TUNED STATE OF GUITAR STRINGS Russian patent published in 2010 - IPC G10H1/44 

FIELD: physics.

SUBSTANCE: method is performed such that a control unit performs control so that a backlight emits light having a predetermined colour when a tuner is turned on, and then performs control so that the backlight emits light having a different colour when the tuning of guitar strings is completed using the display device, which includes: a liquid-crystal display (LCD) panel provided in an equaliser mounted on the guitar body, and configured to display the tuned states of the guitar strings; a backlight mounted behind the LCD panel, and a control unit configured to control the LCD panel and the backlight.

EFFECT: easier use in poorly illuminated places and simplification of the tuning process.

2 cl, 5 dwg