Invention Grant
- Patent Title: Liquid crystal dropping device and method of manufacturing liquid crystal display apparatus
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Application No.: US15110083Application Date: 2014-01-23
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Publication No.: US09772524B2Publication Date: 2017-09-26
- Inventor: Hiroaki Tokunaga , Shinya Kasahara
- Applicant: Sakai Display Products Corporation
- Applicant Address: JP Sakai-shi, Osaka
- Assignee: Sakai Display Products Corporation
- Current Assignee: Sakai Display Products Corporation
- Current Assignee Address: JP Sakai-shi, Osaka
- Agency: Bozicevic, Field & Francis LLP
- Agent Rudy J. Ng; Bret E. Field
- International Application: PCT/JP2014/051318 WO 20140123
- International Announcement: WO2015/111162 WO 20150730
- Main IPC: G02F1/1341
- IPC: G02F1/1341 ; G02F1/1339 ; G02F1/13 ; G02F1/1335 ; G02F1/1343 ; G02F1/1362 ; G02F1/1368

Abstract:
Provided are: a liquid crystal dropping device capable of accurately dropping liquid crystal material while generation of foreign substances is suppressed; and a method of manufacturing a liquid crystal display apparatus capable of manufacturing a liquid crystal display apparatus with preferable display quality and high yield in which the occurrence of a display failure such as a luminous-dot failure is suppressed.The liquid crystal dropping device 1 includes a liquid crystal bottle 2 which stores liquid crystal material 61, a three-way valve 3, a liquid crystal ejecting part 4, a nozzle 5 and a driving unit 7. The liquid crystal ejecting part 4 includes a syringe 41 with a bottomed cylindrical shape as well as a plunger 44 constituted by a slide part 42 which slides in the syringe 41 and a support 43 which has a bar-like shape and supports the slide part 42. The operation control part 8 reciprocates the plunger 44 before the liquid crystal material 61 is dropped from the nozzle 5, with a reciprocating distance shorter than a stroke for dropping the liquid crystal material.
Public/Granted literature
- US20160334655A1 LIQUID CRYSTAL DROPPING DEVICE AND METHOD OF MANUFACTURING LIQUID CRYSTAL DISPLAY APPARATUS Public/Granted day:2016-11-17
Information query
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