Does this requirement apply to other blinking elements beyond a display screen, such as LED’s, illuminated buttons, and flashing words?
LED’s and illuminated buttons are not covered by this requirement. Flashing words are typically elements on a display screen, and so typically are included as screen elements that could cause harmful screen flicker. In contrast to a display screen, items that are small in size and typically have a low illumination such as LED’s and illuminated buttons may easily be looked away from and generally do not have a negative affect on users.
