It is usually difficult to design and manufacture the gratings of single plate with single reflecting surface,thus we proposed a two-dimensional,L-shaped extended configuration with single plate.This configuration consists of two specular reflecting surfaces and three holographic gratings with the same period and groove orientation,which makes gratings design and fabrication easier.According to the calculation and analysis to the optical path of configuration,the size of the turning grating is no larger than 40 mm×40 mm.The simulation result demonstrates that the display configuration is reasonable and correct,and can realize the display effect with 30°×30° field of view and 30 mm large exit pupil.This configuration can be applied to an augmented reality display or a Head-Mounted Display (HMD).