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公开(公告)号：US11485132B2
公开(公告)日：2022-11-01
申请号：US16933029
申请日：2020-07-20
Applicant: Semes Co., Ltd.
Inventor： Chulwoo Kim , Sanghwa Lee , Beomjeong Oh
IPC: B41J2/045
Abstract: In a printing method using an ink jet head, a chemical liquid may be discharged onto a substrate from a plurality of nozzles of the ink jet head. Discharging numbers of the chemical liquid from the plurality of nozzles may be identified and a cumulative discharging number of the chemical liquid from the plurality of nozzles may be calculated. The cumulative discharging number of the chemical liquid may be compared with a previously set limit discharging number of the ink jet head. A replacement time of the ink jet head may be determined if the cumulative discharging number of the chemical liquid exceeds the previously set limit discharging number.
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公开(公告)号：US20220032611A1
公开(公告)日：2022-02-03
申请号：US17391383
申请日：2021-08-02
Applicant: SEMES CO., LTD
Inventor： Yeonsu Jung , Yeonchul Song , Myeongjun Lim , Chulwoo Kim
Abstract: An apparatus for dispensing droplet may include a droplet discharging member, a stage and a control member. The droplet discharging member may include a plurality of nozzles arranged in a first direction by a constant interval. The stage may receive a substrate including a plurality of regions for forming a plurality of pixels of a same size disposed in the first direction and a second direction substantially perpendicular to the first direction. The control member may control the droplet discharging member such that amounts of droplets may be substantially identical in the regions of the substrate for the pixels if the numbers of the nozzles of the droplet discharging member with respect to sides of the regions of the substrate for the pixels are different in the first direction. The control member may identify patterns of discharged droplets in the regions of the substrate for the pixels and adjusts the amounts of the droplets form the nozzles of the droplet discharging member by controlling operation of each of nozzles of the droplet discharging member.
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公开(公告)号：US11312127B2
公开(公告)日：2022-04-26
申请号：US16868633
申请日：2020-05-07
Applicant: Semes Co., Ltd.
Inventor： Chulwoo Kim , Beomjeong Oh
IPC: B41J2/045
Abstract: An apparatus for discharging chemical liquid may include an ink jet head, a gantry and a control member. The ink jet head may include a plurality of nozzles capable of discharging chemical liquid onto a substrate. The gantry may hold the ink jet head to place the ink jet head over the substrate. The control member may control the ink jet head such that discharge times of the chemical liquid from the nozzles of the ink jet head may be changed.
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公开(公告)号：US11858264B2
公开(公告)日：2024-01-02
申请号：US17391383
申请日：2021-08-02
Applicant: SEMES CO., LTD
Inventor： Yeonsu Jung , Yeonchul Song , Myeongjun Lim , Chulwoo Kim
CPC classification number: B41J2/04535 , B41J2/04581 , B41J11/0085 , H10K71/135 , B41J2202/09
Abstract: An apparatus for dispensing droplet may include a droplet discharging member, a stage and a control member. The droplet discharging member may include a plurality of nozzles arranged in a first direction by a constant interval. The stage may receive a substrate including a plurality of regions for forming a plurality of pixels of a same size disposed in the first direction and a second direction substantially perpendicular to the first direction. The control member may control the droplet discharging member such that amounts of droplets may be substantially identical in the regions of the substrate for the pixels if the numbers of the nozzles of the droplet discharging member with respect to sides of the regions of the substrate for the pixels are different in the first direction. The control member may identify patterns of discharged droplets in the regions of the substrate for the pixels and adjusts the amounts of the droplets form the nozzles of the droplet discharging member by controlling operation of each of nozzles of the droplet discharging member.
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