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Cell cutting device and cell cutting method / Samsung Display Co., Ltd.




Title: Cell cutting device and cell cutting method.
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. ...


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USPTO Applicaton #: #20130341372
Inventors: Jae-pil Lee, Myeong-lyeol Yu, Dae-seung Mun


The Patent Description & Claims data below is from USPTO Patent Application 20130341372, Cell cutting device and cell cutting method.

CROSS-REFERENCE TO RELATED PATENT APPLICATION

This application claims priority to and the benefit of Korean Patent Application No. 10-2012-0066317, filed on Jun. 20, 2012 in the Korean Intellectual Property Office, the entire content of which is incorporated herein by reference.

BACKGROUND

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1. Field

Aspects of embodiments of the present invention relate to a cell cutting device and a cell cutting method.

2. Description of the Related Art

In general, various methods may be used to separate a plurality of cells that are formed in a sheet (for example, a substrate of display panels). In particular, a laser or a chemical treatment is generally used. For example, for a plurality of display panels formed on a common substrate, the laser or chemical treatment may be used to separate the display panels. The display panels may alternatively be manually separated.

However, when the aforementioned methods are used, the procedure may be complicated and incur a large manufacturing cost. On the other hand, when the cells are manually separated, quality may vary due to factors such as a difference in cutting pressure. In particular, with manual separation, production output may vary significantly according to factors such as the expertise of the workers.

SUMMARY

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Embodiments of the present invention provide for a cell cutting device capable of easily and rapidly cutting a plurality of display cells, and for a cell cutting method.

According to an exemplary embodiment of the present invention, a cell cutting device is provided. 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.

The cell cutting device may further include an adhesion unit connected to the loading stage and configured to adhere the display sheet and the plurality of display cells to the loading stage.

The adhesion unit may include an air intake part configured to intake air from an intake hole in the loading stage.

The rotation driving unit may include a cam connected to the loading stage, and a driving unit connected to the cam and configured to rotate the cam.

The cell cutting device may further include a support unit configured to support the loading stage and to receive a rotation axis of the loading stage, and a rotation member connected to the rotation axis and configured to rotate according to rotation of the cam.

The loading stage may include a plurality of loading stages. The rotation driving unit may include a plurality of rotation driving units arranged to correspond to the loading stages. The plurality of rotation driving units may be configured to operate in sequential order.

The loading stage may include a plurality of loading stages. The rotation angles of the plurality of loading stages may differ from each other.

The loading stage may include a plurality of loading stages. The position change unit may include a plurality of position change units arranged to correspond to the loading stages. The plurality of position change units may be located between respective adjacent ones of the plurality of loading stages and configured to separate the plurality of loading stages from each other.

The cell cutting device may further include a dummy removal unit separated from the loading stage and configured to remove a dummy cell of each of the plurality of display cells.

The loading stage may include a plurality of loading stages. The dummy removal unit may include a cutter unit between adjacent ones of the plurality of loading stages, and a cutter driving unit configured to linearly move the cutter unit toward the plurality of loading stages.

An end of the cutter unit may be tapered.

The cutter unit may include a plurality of cutter units arranged to correspond to the adjacent ones of the plurality of loading stages. The dummy removal unit may further include a position adjusting unit configured to linearly move the plurality of cutter units in a longitudinal direction of the display sheet.

The position adjusting unit may include a cylindrical cam unit connected to the plurality of cutter units, and a cam driving unit connected to the cylindrical cam unit and configured to rotate the cylindrical cam unit.

The cell cutting device may further include a crack forming unit configured to form a crack in the display sheet loaded onto the loading stage.

According to another exemplary embodiment of the present invention, a cell cutting method is provided. The method includes loading a display sheet including a plurality of display cells onto a loading stage, forming a crack between the plurality of display cells, separating the plurality of display cells from each other by rotating the loading stage in one direction, and rotating the loading stage in a direction opposite to the one direction.

The loading stage may include a plurality of loading stages arranged to correspond to the display cells. The method may further include separating the plurality of loading stages from each other in a longitudinal direction of the display sheet.

The loading of the display sheet may include adhering the display sheet and the plurality of display cells to the loading stage.

The loading stage may include a plurality of loading stages arranged to correspond to the display cells. The rotating of the loading stage in the one direction may include rotating the plurality of loading stages in sequential order.

The loading stage may include a plurality of loading stages arranged to correspond to the display cells. In the rotating of the loading stage in the one direction, rotation angles of the plurality of loading stages may differ from each other.

The method may further include removing a dummy region of each of the plurality of separated display cells by using a dummy removal unit.

BRIEF DESCRIPTION OF THE DRAWINGS

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The above and other features and aspects of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which:

FIG. 1 is a perspective view of a cell cutting device according to an embodiment of the present invention;

FIGS. 2A and 2B illustrate an operation of the cell cutting device of FIG. 1;

FIG. 3 illustrates operations of a first cam and a second cam shown in FIG. 1;




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stats Patent Info
Application #
US 20130341372 A1
Publish Date
12/26/2013
Document #
File Date
12/31/1969
USPTO Class
Other USPTO Classes
International Class
/
Drawings
0


Cells

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Samsung Display Co., Ltd.


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Severing By Tearing Or Breaking   Methods   With Preliminary Weakening  

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20131226|20130341372|cell cutting device and cell cutting method|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 |Samsung-Display-Co-Ltd
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