Patent ID: 11919317
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 20:
21. A method of fabricating a display device, comprising:
preparing a target substrate including a first area and a second area;
ejecting a first ink in which particles are dispersed to the first area of the target substrate from a first nozzle;
irradiating a first light and a second light having different wavelengths to the first ink ejected from the first nozzle to acquire data on a first exit light and a second exit light emitted from the first ink;
calculating a concentration of the particles in the first ink from the data on the first exit light and the second exit light;
checking whether the concentration is out of an error range from a reference value; and
ejecting a second ink in which particles are dispersed from a second nozzle different from the first nozzle.