https://goo.gl/GGUfna
Try this, simple with some tricks to learn but works.
To make a threshold indicator, use a "window comparator" design instead using a quad comparator ,rated for the Vcc min and use a band gap Vref or a "bar graph driver" chip.
Whenever you ask a design detail question in future, describe the reasons for the design, what the end results are, and all the "constraints". We call this a "spec."
e.g. Design indicator for State of charge ,(SoC) of LiPo single cell. where 10>100% is 3.3>3.7V and charge is when I<5%Imax at 4.2V when charger is cut-off.
You choose your indicator and control thresholds. then tune values if required later. You must choose tolerances. Then start the design and verify when done later. We call this Design Validation Testing, DVT.
Writing a simple Spec, and DVT plan are critical requirements for ANY design.
This forces you to include testability with breakpoints and\or testpoints from the start. We call this DFT.