HVAC controller including LEDs for illuminating a display

Abstract

In some examples, a device includes an analog display configured to indicate a current temperature and one or more temperature set Additionally, the device includes processing circuitry is configured to control a set of light-emitting diodes (LEDs) to emit one or more optical beams to reflect off of a projection ring onto the analog display. The one or more optical beams are a first color if the current temperature is lower than a set point temperature of the one or more set point temperatures. The one or more optical beams are a second color if the current temperature is greater than the set point temperature of the one or more set point temperatures.

Dependencies are inferred from the claim text.