Display device and manufacturing method thereof
AssigneeSamsung Display Co., Ltd.
InventorsHyun Wook Lee, Soon Wook Hong, Seung Rae Kim, Jae-Hyun Park, Min cheol Chae
Life of this patent
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Abstract
A method of manufacturing a display device including: preparing a substrate having a display area and a non-display area; and forming an alignment mark disposed in the non-display area of the substrate. The alignment mark includes a quadrangular-shaped center portion and a plurality of measurement portions that surround the center portion, the plurality of measurement portions including four or more measurement portions, and each of the measurement portions including sides that are parallel with two sides of the quadrangular-shaped center portion.
Claims9
A method of manufacturing a display device, comprising:
- preparing a substrate having a display area and a non-display area;
- forming a center portion in the non-display area through a process for forming a first conductive layer in the display area;
- and
- forming a second conductive layer in the display area, and forming a first measurement portion and a second measurement portion that surround the center portion through a process for forming the second conductive layer;
- wherein:
- the first measurement portion and the second measurement portion are separated from each other;
- the first measurement portion and the second measurement portion are disposed diagonally with the center portion in between;
- the center portion comprises the same material as a gate line or a data line of the display area;
- the first measurement portion and the second measurement portion comprise the same material as the data line or a pixel electrode material of the display area;
- and
- the center portion, the first measurement portion, and the second measurement portion are disposed on a same layer.
A method of manufacturing a display device, comprising:
- preparing a substrate having a display area and a non-display area;
- forming a center portion in the non-display area through a process for forming a first conductive layer in the display area;
- forming a second conductive layer in the display area by using a first mask, and forming a first measurement portion and a second measurement portion that surround the center portion through a process for forming the second conductive layer;
- and
- forming the second conductive layer by using a second mask in the display area, and forming a third measurement portion and a fourth measurement portion that surround the center portion through a process for forming the second conductive layer,
- wherein:
- the center portion is formed in an area where the first mask and the second mask are overlapped with each other;
- and
- the first measurement portion, the second measurement portion, the third measurement portion, and the fourth measurement portion are separated from each other.
Dependencies are inferred from the claim text.