Display substrate, method of manufacturing the same and display panel having the display substrate

A method of manufacturing a display substrate, the method comprising:

• forming a gate electrode on a base substrate in which a pixel area including a reflective area and a transmissive area is defined, by patterning a gate metal layer formed on the base substrate;
• forming a semiconductor pattern on the base substrate including the gate electrode formed thereon, the semiconductor pattern including a semiconductor layer and an ohmic contact layer;
• forming a source electrode, a drain electrode, and a reflective electrode which is extended from the drain electrode, to be disposed in the reflective area, by patterning a source metal layer on the base substrate including the semiconductor pattern;
• forming an organic insulation layer on the base substrate including the reflective electrode formed thereon, the reflective electrode disposed between the organic insulating layer and the base substrate;
• and
• forming a transmissive electrode electrically connected to the drain electrode in the transmissive area of the organic insulation layer.

A display panel comprising:

• a display substrate comprising:
• a base substrate in which a pixel area including a reflective area and a transmissive area is defined;
• a gate line connected to a gate electrode;
• a first insulation layer disposed on the gate line;
• a semiconductor layer disposed on the gate electrode and the first insulation layer;
• a data line disposed on the first insulation layer, the data line crossing the gate line;
• a switching element defined by the gate electrode, a source electrode extended from the data line to overlap with a first end portion of the semiconductor layer, and a drain electrode spaced apart from the source electrode to overlap with a second end portion of the semiconductor layer;
• a light-blocking member including a first light-blocking part disposed overlapping an area where the gate line and the data line are disposed, and a second light-blocking part disposed in the reflective area and including an embossing pattern;
• a reflective electrode disposed overlapping the embossing pattern of the second light-blocking part;
• a second insulation layer disposed in the pixel area of the reflective electrode, the reflective electrode disposed between the second light-blocking part and the second insulation layer;
• and
• a transmissive electrode disposed on the second insulation layer in the transmissive area;
• an opposite substrate comprising a common electrode disposed overlapping the reflective and transmissive electrodes;
• and
• a liquid crystal layer interposed between the display substrate and the opposite substrate.