US 12,330,434 B2
Droplet discharging apparatus, droplet discharging method and manufacturing method for display device
Jungwoong Byun, Osan-si (KR); Toshinaru Suzuki, Suwon-si (KR); Cheong-Wan Min, Hwaseong-si (KR); and Jeongwon Han, Seongnam-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on May 27, 2022, as Appl. No. 17/826,831.
Claims priority of application No. 10-2021-0120436 (KR), filed on Sep. 9, 2021.
Prior Publication US 2023/0072141 A1, Mar. 9, 2023
Int. Cl. B41J 29/393 (2006.01); B41J 2/04 (2006.01); G06T 7/00 (2017.01); H10K 71/13 (2023.01)
CPC B41J 29/393 (2013.01) [B41J 2/04 (2013.01); G06T 7/0004 (2013.01); H10K 71/135 (2023.02); G06T 2207/30144 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A droplet discharging apparatus comprising:
a transfer part moving a substrate including a first target position in a first direction;
an inkjet head disposed on the transfer part and discharging a first droplet to the first target position of the substrate;
a first camera positioned in a second direction opposite to the first direction of the inkjet head, the first camera acquiring a first image corresponding to the first target position of the substrate;
a second camera positioned in the first direction of the inkjet head, the second camera acquiring a second image corresponding to the first target position of the substrate; and
an image processor receiving the first image and the second image, and comparing the first image and the second image to inspect a discharge state of the first droplet and determine if the first droplet is seated within a boundary of the first target position, the boundary defining an enclosed area corresponding to a diameter size of the first droplet when seated on the substrate.