MULTIPLE BACKLIGHT KEYBOARD

摘要

This application relates to a dynamic lighting circuit for a keyboard of a computing device. The lighting circuit described herein includes several light emitting diode (LED) drivers having multiple channels for controlling multiple LEDs. The lighting circuit also includes an electrically erasable read-only memory (EEPROM) for storing configuration data for the LED drivers. Each LED is configured to individually illuminate a single key of the keyboard, allowing the lighting circuit to modify the brightness of each key without affecting the brightness of other keys. In this way, more lighting schemes are available for the keyboard, while also providing a thinner mechanical design for the keyboard. Lighting schemes can include illuminating a group or groups of keys at a different brightness level than other keys that are not contained in the group. Additionally, lighting schemes can include animations executed by varying the brightness levels of keys over a period of time.

主权项

1. A lighting circuit for a keyboard, comprising:
a plurality of light emitting diode (LED) drivers; a host controller connected to the plurality of LED drivers; a plurality of LEDs connected to the plurality of LED drivers, wherein each LED of the plurality of LEDs is configured to illuminate a key of the keyboard and, be responsive to an operation performed by a computing device associated with the keyboard; and a memory connected to the host controller, wherein the memory stores calibration data associated with each brightness level of a plurality of brightness levels between which the plurality of LEDs can be transitioned.