Liquid crystal display device and method of manufacturing the same

A method of manufacturing a liquid crystal display device comprising the steps of:

• forming a gate bus line, a data bus line, a thin film transistor connected to the gate bus line and the data bus line, and a stepwise structure having a stepwise cross section on a first substrate respectively;
• forming a photoresist film on an overall upper surface of the first substrate;
• curing only a surface layer of the photoresist film;
• forming a wrinkle-like roughness on a surface of the photoresist film by applying an annealing;
• forming a reflective electrode on the photoresist film;
• and
• arranging a second substrate to oppose to the first substrate, and sealing a liquid crystal between the first substrate and the second substrate;
• wherein at least a part of the stepwise structure is formed simultaneously with at least one of the gate bus line and the data bus line.

A method of manufacturing a liquid crystal display device comprising the steps of:

• forming a first conductor film on a first substrate, and then forming a gate bus line and a first pattern by patterning the first conductor film;
• forming a first insulating film on an overall upper surface of the first substrate;
• forming a semiconductor film acting as an active layer of a thin film transistor on the first insulating film;
• forming a second conductor film on the first insulating film, and then forming a source electrode and a drain electrode of the thin film transistor, a data bus line connected to the drain electrode, and a second pattern having a width narrower than the first pattern and formed to overlap with the first pattern by patterning the second conductor film;
• forming a second insulating film on an overall upper surface of the first substrate;
• forming a photoresist film on the second insulating film;
• curing only a surface layer of the photoresist film;
• forming a wrinkle-like roughness on a surface of the photoresist film by applying an annealing;
• forming a reflective electrode on the photoresist film;
• and
• arranging a second substrate to oppose to the first substrate, and then sealing a liquid crystal between the first substrate and the second substrate.