US 7,553,390 B2
Method and device for parting glass substrate, liquid crystal panel, and liquid crystal panel manufacturing device
Koji Yamabuchi, Nara (Japan); Tomohisa Komoda, Mie (Japan); Kazuya Kaida, Nara (Japan); Akinori Izumi, Nara (Japan); Takane Horiuchi, Yamanashi (Japan); Shinya Takabe, Fujiyoshida (Japan); Toshimitsu Furuya, Yamanashi (Japan); and Tetsuro Katayama, Fujiyoshida (Japan)
Assigned to Sharp Kabushiki Kaisha, Osaka (Japan); and Citizen Seimitsu Co., Ltd., Yamanashi (Japan)
Appl. No. 10/494,565
PCT Filed Nov. 05, 2002, PCT No. PCT/JP02/11540
§ 371(c)(1), (2), (4) Date Oct. 27, 2004,
PCT Pub. No. WO03/040049, PCT Pub. Date May 15, 2003.
Claims priority of application No. 2001-342951 (JP), filed on Nov. 08, 2001; application No. 2001-354771 (JP), filed on Nov. 20, 2001; application No. 2002-216190 (JP), filed on Jul. 25, 2002; and application No. 2002-249984 (JP), filed on Aug. 29, 2002.
Prior Publication US 2005/0056127 A1, Mar. 17, 2005
Int. Cl. B32B 38/10 (2006.01); G02F 1/1335 (2006.01); C09K 19/00 (2006.01); C03B 21/02 (2006.01); B26D 1/56 (2006.01); B26D 3/06 (2006.01); B31B 1/25 (2006.01); B31B 1/14 (2006.01); G02F 1/1347 (2006.01); C03C 17/28 (2006.01); B26D 1/01 (2006.01); B26D 3/02 (2006.01)
U.S. Cl. 156—257  [156/250; 349/82; 349/96; 427/164; 427/165; 428/1.1; 65/60.1; 65/105; 65/174; 83/33; 83/39; 83/56; 83/879] 48 Claims
OG exemplary drawing
 
1. A method of cutting apart a glass substrate having a deposited film formed thereon, comprising the steps of:
removing strip-shaped portions of the deposited film by shaving off portions of the deposited film so as to expose strip-shaped regions on the substrate; and
forming cracks so as to permit the glass substrate to be cut apart along the strip-shaped regions exposed thereon, and
cutting the glass substrate apart along the cracks,
wherein said step of shaving off portions of the deposited film comprises the step of shaving off strip-shaped portions of the deposited film using a blade having a cutting edge having a substantially V-shaped, arc-shaped, or trapezoidal cross section.