There is another circuit board affixed to the LCD chassis (back covering) that must be removed before the chassis can be unscrewed.

The glue holding this component on is strong; it takes patience to pry off the plastic covering without separating it from the electronics inside. Pry with a spudger in small increments. With patience, it will come undone.

Finally, begin removing the chassis of the LCD screen by removing the 6 screws (4.5mm) found around the perimeter of the chassis with a PH00 screwdriver. The sevelth screw, circled in yellow, is stationary and must simply be loosened.