essentially I'm trying to make a very basic circuit where a 3.7 volt battery is wired to a liquid crystal display, (or LCD), and the brightness of said display is controlled by a pentiometer to variably resist voltage headed to the LCD display. In theory, twisting the dial should resist voltage going from the battery to the LCD thus darkening or lightening the screen. Unfortunately as of right now the display is either completely dark with the battery in or clear if the battery is out and the pentiometer does nothing one way or another. I have no idea how to fix this so any help would be great. Pictures of the circuit are below. Keep in mind in the pictures that the solder to the two pins on the pentiometer are not actually touching though that is how it appears. Thanks.