The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2008
Filed:
Jun. 25, 2004
Jae-gyu Jeong, Daegu, KR;
Soo-min Kwak, Gyeongsangbuk-Do, KR;
Hae-joon Son, Busan, KR;
Man-ho an, Gyeongsangbuk-Do, KR;
Joon-young Kim, Gyeongsangbuk-Do, KR;
Jae-Gyu Jeong, Daegu, KR;
Soo-Min Kwak, Gyeongsangbuk-Do, KR;
Hae-Joon Son, Busan, KR;
Man-Ho An, Gyeongsangbuk-Do, KR;
Joon-Young Kim, Gyeongsangbuk-Do, KR;
LG Displays Co., Ltd., Seoul, KR;
Top Engineering Co., Ltd., Seoul, KR;
Abstract
A liquid crystal dispensing apparatus facilitating detection of vapor within liquid crystal material, facilitating removal of residual liquid crystal material, and facilitating precise control of predetermined dispensing positions and dispensing amounts includes a container containing liquid crystal material, a discharge pump drawing in and discharging liquid crystal material, and a nozzle dispensing liquid crystal material, discharged from the discharge pump, onto a substrate. The discharge pump includes a case, a window at a lower portion of the case, a cylinder within the case, a piston rotatably arranged within the cylinder and having a groove for drawing in and discharging liquid crystal material, and a suction opening and a discharge opening through which liquid crystal material is drawn into and discharged from with respect to the cylinder.