On some modules, the LCD glass can be "flipped" so the polarizer which dictates the viewing angle is 180° from the original. The CFAG12864B family one of those. You can do it yourself, but we really don't recommend doing so.
We can also bring in our modules manufactures with a 12 o'clock viewing angle. Part number would be CFAG14432B-TFK-TT. Pricing is the same. Since it would be a special order, there will be an MOQ (minimum order quantity) of 10 or 20 pieces - will need to verify that for you when you place your order.
1 - To swap the glass around, make sure you have the LCD protected and set it face down on a CLEAN smooth, static safe work surface. The environment should be clean and free of dust, dirt, and any airborne debris.
2 - With a pair of small blunt (straight nose) pliers, carefully turn the bezel tabs towards the outside of the PCB. There are a total of six. They will move quite easily if you apply a GENTLE amount of pressure to the PCB near the tab.
3 - When all six have been moved, carefully lift the PCB straight up.
4 - Rotate the PCB 180°
5 - Set the PCB back down on the bezel assembly. There are alignment pins on the bezel so it will go back together correctly aligned.
6 - Using your small blunt pliers, turn the bezel tabs back in. Again, applying a GENTLE amount of pressure to the PCB will allow a smoother turn.
That should do it.