Substrate for a display device, liquid crystal display device having the same and method of manufacturing the same

A method of manufacturing a substrate for a display device, comprising:

• forming a switching element and a data line on an insulating substrate, the data line being electrically connected to a first electrode of the switching element;
• forming an insulating layer having a contact hole through which a second electrode of the switching element is partially exposed and a groove adjacent to the data line on the insulating substrate;
• and
• forming a pixel electrode electrically connected to the second electrode through the contact hole on the insulating layer.

A liquid crystal display device comprising:

• a first substrate;
• a second substrate corresponding to the first substrate, the second substrate comprising:
• a lower substrate;
• a switching element on the lower substrate;
• a data line on the lower substrate electrically connected to a first electrode of the switching element;
• an insulating layer on the lower substrate, the insulating layer having a contact hole through which a second electrode of the switching element is partially exposed and a groove adjacent to the data line;
• and
• a pixel electrode on the insulating layer electrically connected to the second electrode through the contact hole;
• and
• a liquid crystal layer interposed between the first and second substrates.

A method of manufacturing a liquid crystal display device, comprising:

• forming a switching element and a data line that is electrically connected to a first electrode of the switching element on a lower substrate;
• forming on the lower substrate having the switching element and the data line an insulating layer having a contact hole through which a second electrode of the switching element is partially exposed and a groove adjacent to the data line;
• forming a pixel electrode electrically connected to the second electrode through the contact hole in the insulating layer;
• forming an upper substrate corresponding to the lower substrate;
• and
• interposing a liquid crystal layer between the pixel electrode and the upper substrate.

A method of manufacturing a liquid crystal display device, comprising:

• forming on a lower substrate a control electrode of a switching element and a gate line that is electrically connected to the control electrode;
• forming a gate insulating layer on the lower substrate having the control electrode and the gate line;
• forming an active layer on the gate insulating layer;
• after forming the active layer, forming a molybdenum layer on the gate insulating layer;
• partially etching the active layer and the molybdenum layer to form first and second electrodes of the switching element, a data line electrically connected to the first electrode, and a primary active pattern under the first and second electrodes and the data line, the second electrode being spaced apart from the first electrode;
• depositing an insulating material on the gate insulating layer having the first and second electrodes, the data line, and the primary active pattern;
• partially etching using a first mask the deposited insulating material corresponding to the second electrode, the deposited insulating material adjacent to the data line and the primary active pattern adjacent to the data line;
• forming a pixel electrode on the insulating layer, the pixel electrode being electrically connected to the second electrode;
• forming an upper substrate corresponding to the lower substrate;
• and
• interposing a liquid crystal layer between the pixel electrode and the upper substrate.