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

1. A display substrate comprising:

a base substrate in which a pixel area including a reflective area and a transmissive area are 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 and continuous with 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 both disposed, and a second light-blocking part disposed in the reflective area and including an embossing pattern;

a reflective electrode disposed on the embossing pattern of the second light-blocking part;

a second insulation layer disposed overlapping the reflective electrode, the reflective electrode disposed between the second light-blocking part and the second insulation layer; and

a transmissive electrode disposed on a portion of the second insulation layer overlapping the transmissive area.

2. The display substrate of claim 1 , wherein

the reflective electrode comprises a plurality of a first electrode portion having a first width, and

the transmissive electrode comprises a plurality of a second electrode portion having a second width smaller than the first width.

3. The display substrate of claim 2 , wherein each of the widths of the first electrode portions is larger than a first interval between first electrode portions adjacent to each other.

4. The display substrate of claim 1 , further comprising:

a protective layer disposed on the base substrate, the second insulation layer disposed between the protective layer and the base substrate.

5. The display substrate of claim 4 , wherein a thickness of the second insulation layer disposed in the reflective area is larger than a thickness of the second insulation layer disposed in the transmissive area, the thicknesses taken in a direction substantially perpendicular to the first base substrate.

6. The display substrate of claim 5 , wherein the second insulation layer is a color filter layer.

7. 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.

8. The display panel of claim 7 , wherein the reflective electrode comprises a plurality of a first electrode portion having a first width, and the transmissive electrode comprises a plurality of a second electrode portion having a second width which is smaller than the first width.

9. The display panel of claim 8 , wherein each width of the first electrode portions is greater than or equal to an interval between second electrode portions adjacent to each other.

10. The display panel of claim 7 , wherein the common electrode has a substantially planar structure.

11. The display panel of claim 7 , wherein the display substrate further comprises a protective layer disposed on the base substrate, the second insulation layer being disposed between the protective layer and the base substrate.

12. The display panel of claim 11 , wherein a thickness of the second insulation layer disposed in the reflective area is greater than or equal to a thickness of the second insulation layer disposed in the transmissive area.

13. The display panel of claim 12 , wherein the second insulation layer is a color filter layer.

14. The display panel of claim 7 , wherein a cell gap of the liquid crystal layer overlapping the reflective area is substantially equal to a cell gap of the liquid crystal layer overlapping the transmissive area.