Cell cutting device and cell cutting method

• US 10,640,413 B2
• Filed: 10/18/2016
• Issued: 05/05/2020
• Est. Priority Date: 06/20/2012
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Lee, Jae-Pil, Yu, Myeong-Lyeol, Mun, Dae-Seung
• Primary Examiner(s): Alie, Ghassem
• Assistant Examiner(s): Patel, Bharat C
• Application Number:
  US15/296,985
• Publication Number:
  US 20170050876A1
• Time in Patent Office: 1,295 Days
• Field of Search: 83 13, 83100, 83879-887, 83862-864, 225 2, 225 94- 96, 225 965, 225 97, 225103-105
• CPC Class Codes: B65G 2249/04 Arrangements of vacuum systems or suction cups
• CPC Class Codes: C03B 33/033 Apparatus for opening score lines in glass sheets
• CPC Class Codes: G02F 1/1303 Apparatus specially adapted to the manufacture of LCDs
• CPC Class Codes: G02F 1/133351 Manufacturing of individual cells out of a plurality of cells, e.g. by dicing
• CPC Class Codes: Y10T 225/12 With preliminary weakening
• CPC Class Codes: Y10T 225/325 With means to apply moment of force to weakened work
• CPC Class Codes: Y10T 225/329 Plural breakers

Abstract

A cell cutting device and a cell cutting method are disclosed. The cell cutting device includes a loading stage configured to load a display sheet including a plurality of display cells, a rotation driving unit connected to the loading stage and configured to rotate the loading stage and to separate the display sheet into the plurality of display cells, and a position change unit connected to the loading stage and configured to change a position of the loading stage.

Claims

1. A cell cutting method comprising:

loading a display sheet comprising a plurality of display cells onto a loading stage that comprises a plurality of loading stages spaced apart from one another and arranged to correspond to the display cells, each of the plurality of loading stages having a top surface;

separating the plurality of display cells from each other by rotating the plurality of loading stages in one direction, wherein the rotating of the plurality of loading stages results in the top surfaces being in different planes;

rotating the plurality of loading stages in a direction opposite to the one direction; and

removing a dummy region of each of the plurality of separated display cells by using a dummy removal unit comprising a cutter unit that removes the dummy region,

wherein the top surfaces of the plurality of loading stages do not directly contact one another,

wherein the plurality of loading stages rotate in the one direction or in the direction opposite to the one direction due to rotation of a plurality of cams respectively coupled to the plurality of loading stages, and

wherein the dummy region of each of the plurality of separated display cells is removed after separating the plurality of display cells from each other by rotating the plurality of loading stages in the one direction.

2. The cell cutting method of claim 1, wherein

the cell cutting method further comprises separating the plurality of loading stages from each other in a longitudinal direction of the display sheet.

3. The cell cutting method of claim 1, wherein the loading of the display sheet comprises adhering the display sheet and the plurality of display cells to the loading stage.

4. The cell cutting method of claim 1, wherein

the rotating of the loading stage in the one direction comprises rotating the plurality of loading stages in sequential order.

5. The cell cutting method of claim 1, wherein

in the rotating of the loading stage in the one direction, rotation angles of the plurality of loading stages differ from each other due to contact portion between respective rotation members and an exterior-surface shape of the respective cams.

6. The cell cutting method of claim 1, wherein a rotation axis of the loading stage connected with a rotation member rotates according to rotation of the cam, and

the rotation member comprises a protruding end that selectively contacts an exterior surface of the cam.