Apparatus for forming alignment layer and auto-calibration method thereof
View Patent ↗An apparatus for forming alignment layer includes a printing stage for supporting a substrate thereon, at least one inkjet head having at least one spray hole above the printing stage, the spray hole spraying an alignment material onto the substrate, a head support supporting the inkjet head, a pitch measuring unit adjacent to the inkjet head, and a display unit displaying measured results provided by the pitch measuring unit.
1. An apparatus for forming an alignment layer, comprising:
a printing stage for supporting a substrate thereon;
a plurality of inkjet heads having a plurality of spray holes above the printing stage, the plurality of spray holes spraying an alignment material onto the substrate;
a head support supporting the plurality of inkjet heads;
a measuring unit adjacent to the plurality of inkjet heads; and
a display unit displaying measured results provided by the measuring unit,
wherein the measuring unit measures a size of the plurality of spray holes.
2. The apparatus according to claim 1
wherein the measuring unit further measures a distance between the plurality of spray holes.
3. The apparatus according to claim 1 , wherein one of the printing stage and the head support is movable relative to the other.
4. The apparatus according to claim 1
wherein the measuring unit further measures a distance between the plurality of inkjet heads.
5. The apparatus according to claim 1 , wherein the measuring unit includes a sensor.
6. The apparatus according to claim 5 , wherein the sensor is a bar-type sensor.
7. The apparatus according to claim 1 , wherein the display unit is connected to the measuring unit by a cable or a wireless connection.
8. The apparatus according to claim 1 , wherein the display unit includes a monitor.