Apparatus for conveying liquid crystal display panel

• US 7,616,289 B2
• Filed: 02/07/2006
• Issued: 11/10/2009
• Est. Priority Date: 03/23/2002
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Lim, Jong-Go, Chae, Kyung-Su
• Primary Examiner(s): Dudek; James A
• Application Number:
  US11/348,274
• Publication Number:
  US 20060125260A1
• Time in Patent Office: 1,372 Days
• Field of Search: 349/187
• US Class Current: 349/187
• CPC Class Codes: B25J 15/026 actuated by gears
• CPC Class Codes: B25J 9/023 Cartesian coordinate type
• CPC Class Codes: B65G 49/061 Lifting, gripping, or carrying means, for one or more sheets forming independent means of transport, e.g. suction cups, transport frames suction means as load-engaging elements attached to the lifting or lowering gear of cranes B66C1/02; suction cups for attaching purposes F16B47/00; suction cups on gripping heads B25J15/0616; suction cups in general B65G47/91; suction cups combined with cutting means on vertical conveyors C03B33/00 - C03B33/10; devices for turning sheets B65G49/067; suspending devices B65G49/066
• CPC Class Codes: B65G 49/064 in a horizontal position B65G49/066 takes precedence
• CPC Class Codes: G02F 1/133351 Manufacturing of individual cells out of a plurality of cells, e.g. by dicing
• CPC Class Codes: G02F 1/13415 Drop filling process
• CPC Class Codes: H01L 21/68707 the wafers being placed on a robot blade, or gripped by a gripper for conveyance

Abstract

An apparatus for conveying a liquid crystal display panel for moving various size unit liquid crystal display panels. The present invention includes a horizontal driving unit controlling a revolution of a motor, a plurality of screw shafts protruding out of the horizontal driving unit. A pair of robot arms having first and second ends, the first ends are supported by corresponding screw shafts and extend from the screw shafts, and a plurality of clamping units connected to the second ends of the robot arms.

Claims

1. A method of manufacturing a liquid crystal display device comprising:

providing a first substrate;

providing a second substrate;

forming a liquid crystal layer on either the first or second substrate;

forming a seal pattern with a sealant on either the first or second substrate;

bonding the first and second substrates;

cutting the bonded first and second substrates; and

transporting the bonded substrates with a conveyor device which includes a horizontal driving unit controlling a revolution of a motor, a vertical driving unit connected to the horizontal driving unit with a rod for driving the horizontal driving unit in a vertical direction, a plurality of screw shafts protruding from the horizontal driving unit, a pair of robot arms having first and second ends, the first ends are supported by corresponding screw shafts and extend from the screw shafts, and a plurality of clamping units connected to the second ends of the robot arms.

2. The method of claim 1, wherein the plurality of screw shafts includes at least two screw shafts which protrude from lateral sides of the horizontal driving unit.

3. The method of claim 1, wherein the conveyor device further comprising support plates connected to the plurality of screw shafts and connected to the robot arms.

4. The method of claim 1, wherein the robot arms are driven by the revolution of the motor.

5. The method of claim 1, wherein the plurality of clamping units include at least two clamps separated from each other at a predetermined distance along a length of the pair of robot arms.

6. The method of claim 1, wherein the conveyor device further comprising a pair of stoppers at ends of the plurality of screw shafts to minimize rocking of the plurality of screw shafts, wherein one stopper couples one end of the plurality of screw shafts with each other and the other stopper couples the other end of the plurality of screw shafts with each other.

7. The method of claim 2, wherein the conveyor device further comprising stoppers at ends of the plurality of screw shafts.

8. A method of manufacturing a liquid crystal display device comprising:

providing a first substrate;

providing a second substrate;

forming a liquid crystal layer on either the first or second substrate;

forming a seal pattern with a sealant on either the first or second substrate;

bonding the first and second substrates;

cutting the bonded first and second substrates; and

transporting the bonded substrates with a conveyor device which includes a horizontal driving unit controlling a revolution of a motor, a plurality of screw shafts protruding substantially parallel to each other from lateral sides of the horizontal driving unit at a predetermined distance from each other, a pair of robot arms having first and second ends, a vertical driving unit connected to the horizontal driving unit with a rod for driving the horizontal driving unit in a vertical direction to move one of the robot arms, the first ends being supported by corresponding screw shafts, the pair of robot arms being extend from the screw shafts and movable in an upward direction and a downward direction, and a plurality of clamping units connected to the second ends of the robot arms.

9. The method of claim 8, wherein the plurality of screw shafts include at least two screw shafts which protrude from lateral sides of the horizontal driving unit.

10. The method of claim 8, wherein the conveyor device further comprising support plates connected to the plurality of screw shafts and robot arms.

11. The method of claim 8, wherein the conveyor device further comprising a pair of stoppers at ends of the plurality of screw shafts to minimize rocking of the plurality of screw shafts, wherein one stopper couples one end of the plurality of screw shafts with each other and the other stopper couples the other end of the plurality of screw shafts with each other.

12. The method of claim 9, wherein the conveyor device further comprising stoppers at ends of the plurality of screw shafts.

13. The method of claim 8, wherein the robot arms are driven by the revolution of the motor.

14. The method of claim 8, wherein the plurality of clamping units include at least two clamps separated from each other at a predetermined distance along a length of the pair of robot arms.

15. A method of manufacturing a liquid crystal display device comprising:

providing a first substrate;

providing a second substrate;

forming a liquid crystal method on either the first or second substrate;

forming a seal pattern with a sealant on either the first or second substrate;

bonding the first and second substrates;

cutting the bonded first and second substrates; and

transporting the bonded substrates with a conveyor device which includes a horizontal driving unit controlling a revolution of a motor, a vertical driving unit connected to the horizontal driving unit with a rod for driving the horizontal driving unit in a vertical direction, a plurality of screw shafts protruding substantially parallel to each other from lateral sides of the horizontal driving unit at a predetermined distance from each other, a pair of robot arms having first and second ends, the first ends are supported by corresponding screw shafts and extend from the screw shafts, and a plurality of clamping units connected to the second ends of the robot arms, wherein the plurality of clamping units are configured to provide support to a face of the liquid crystal display panel.

16. The method of claim 15, wherein the conveyor device further comprising support plates connected to the plurality of screw shafts and connected to the robot arms.

17. The method of claim 15, wherein the robot arms are driven by the revolution of the motor.

18. The method of claim 15, wherein the conveyor device further comprising a pair of stoppers at ends of the plurality of screw shafts to minimize rocking of the plurality of screw shafts, wherein one stopper couples one end of the plurality of screw shafts with each other and the other stopper couples the other end of the plurality of screw shafts with each other.