Display panel including a trench defined in a substrate

A display panel comprising:

• a base substrate comprising a bottom portion which extends to define walls of the base substrate, wherein
• the bottom portion and the walls of the base substrate define a trench in the base substrate, and
• a distal end of the walls which opposes the bottom portion defines an upper surface of the trench;
• a common electrode in the trench;
• a liquid crystal layer on the common electrode and completely in the trench defined in the base substrate;
• a filter layer in which a color filter and a light blocking pattern are alternated, the filter layer facing the upper surface of the trench in which the liquid crystal layer is disposed on the common electrode;
• a pixel electrode disposed between the color filter and the light blocking pattern of the filter layer and the upper surface of the trench;
• a first passivation layer between the liquid crystal layer and the pixel electrode;
• a thin film transistor array comprising a gate line, a data line and a switching element, the thin film transistor array disposed between the color filter and the light blocking pattern of the filter layer and the pixel electrode;
• and
• a second passivation layer disposed between the pixel electrode and the thin film transistor array, wherein the switching element includes a drain electrode that passes through the second passivation layer to be connected to the pixel electrode.