Patent ID: 7540924

Claim:
A sealant dispenser, comprising: a stage on which a substrate is mounted; a nozzle dispensing a sealant while moving relative to the substrate; a syringe storing the sealant therein and coupled to the nozzle, wherein the syringe and an outlet of the nozzle are aligned along substantially a same central axis; a distance measuring device, installed on different sides of a lower portion of the syringe, to measure a vertical distance between a front surface of the substrate and the outlet of the nozzle, wherein the distance measuring device comprises a light emitting part, a light receiving part, and a sensor supporting part for supporting the light emitting part and the light receiving part into one body provided as a single integral unit, the sensor supporting part having a coupling hole disposed between the light emitting part and the light receiving part through which the nozzle passes.