Inkjet printing apparatus method of printing dipolar elements and method of fabricating display device

• Main Authors: KWAG JIN OH, YOU SUK BEOM, KANG JONG HYUK, NAM WON HEE, CHO HYUN MIN
• Format: Patent
• Language: English; Korean
• Published: 06.09.2021
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; CORRECTION OF TYPOGRAPHICAL ERRORS; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FILLING PASTES; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; INKS; LINING MACHINES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PRINTING; SELECTIVE PRINTING MECHANISMS; SEMICONDUCTOR DEVICES; STAMPS; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

Provided are an inkjet printing device, a printing method of a bipolar element, and a manufacturing method of a display device. The inkjet printing device comprises: a stage; an inkjet head positioned in an upper portion of the stage and having a plurality of nozzles where ink containing a bipolar element having an area doped with partially different polarities is discharged; an actuator disposed in the inkjet head and controlling a droplet amount of the ink discharged from the nozzle; and at least one sensing unit disposed in the inkjet head to measure the number of the bipolar elements discharged through the nozzle. 잉크젯 프린팅 장치, 쌍극성 소자의 프린팅 방법 및 표시 장치의 제조 방법이 제공된다. 잉크젯 프린팅 장치는 스테이지, 상기 스테이지 상부에 위치하고, 부분적으로 서로 다른 극성으로 도핑된 영역을 갖는 쌍극성 소자를 포함하는 잉크가 토출되는 복수의 노즐을 포함하는 잉크젯 헤드, 상기 잉크젯 헤드에 배치되고, 상기 노즐에서 토출되는 상기 잉크의 액적량을 조절하는 액츄에이터 및 상기 잉크젯 헤드에 배치되어 상기 노즐을 통해 토출되는 상기 쌍극성 소자의 개수를 측정하는 적어도 하나의 센싱 유닛을 포함한다.