Flat display panel cutting apparatus

• US 8,496,150 B2
• Filed: 07/15/2009
• Issued: 07/30/2013
• Est. Priority Date: 07/16/2008
• 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, Kim, Ki-Chul
• Primary Examiner(s): Alie, Ghassem
• Application Number:
  US12/458,554
• Publication Number:
  US 20100011928A1
• Time in Patent Office: 1,476 Days
• Field of Search: 225/94, 225/96.5, 225/1, 225/2, 225/100, 225/101, 225/103, 225/105
• US Class Current: 225/94
• CPC Class Codes: B26D 3/08 Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
• CPC Class Codes: B26D 7/1836 by pulling out
• CPC Class Codes: B26F 3/002 Precutting and tensioning or breaking
• CPC Class Codes: B28D 5/0011 with preliminary treatment, e.g. weakening by scoring
• CPC Class Codes: B28D 5/0052 Means for supporting or holding work during breaking means for conveying work to or discharging work from the breaking machine B28D5/0058
• CPC Class Codes: B65G 2249/045 Details of suction cups suction cups
• CPC Class Codes: C03B 33/033 Apparatus for opening score lines in glass sheets
• CPC Class Codes: C03B 33/07 Cutting armoured, multi-layered, coated or laminated, glass products
• CPC Class Codes: C03B 33/076 Laminated glass comprising interlayers
• CPC Class Codes: Y10T 225/307 Combined with preliminary weakener or with nonbreaking cutter
• CPC Class Codes: Y10T 225/325 With means to apply moment of force to weakened work
• CPC Class Codes: Y10T 225/35 Work-parting pullers [bursters]
• CPC Class Codes: Y10T 83/2092 Means to move, guide, or permit free fall or flight of product

Abstract

An apparatus for cutting a flat display panel prevents a light emitting surface of a flat display panel from being damaged due to a pit or a scratch. The apparatus for cutting a flat display panel includes a stage supporting a rear substrate of the flat display panel, a chip blocking unit disposed to correspond to a non-scrap portion of the flat display panel, and a scrap breaker to grip a scrap portion of the flat display panel that is to be separated from the flat display panel. A scribing line is formed between the scrap portion and a non-scrap portion of the flat display panel.

Claims

1. An apparatus for cutting a flat display panel, comprising:

a stage having a continuous seamless surface along the entire length of the stage, the flat display panel being disposed on the stage, the continuous seamless surface of the stage completely covering the flat display panel, the flat display panel having a scrap portion, a non-scrap portion, and a scribing line formed between the scrap portion and the non-scrap portion;

a scrap breaker capable of gripping and lifting the scrap portion of the flat display panel that is to be separated from the flat display panel;

a chip blocking unit disposed over the non-scrap portion of the flat display panel, the chip blocking unit contacting the non-scrap portion of the flat display panel while the scrap portion is being separated from the flat display panel; and

a connection member to connect the chip blocking unit to the scrap breaker, each of the scrap breaker and the chip blocking unit being capable of performing a descending operation to contact the flat display panel, the chip blocking unit moving by a first stroke distance with respect to the connection member while descending to contact the flat display panel, the scrap breaker moving by a second stroke distance with respect to the connection member while descending to contact the flat display panel, the first stroke distance is larger than the second stroke distance.

2. The apparatus of claim 1, further comprising:

a driving member for lifting or lowering the connection member.

3. The apparatus of claim 2, wherein the chip blocking unit comprises:

a first rod slidably coupled to the connection member;

a first blocking member connected to the first rod and disposed to touch the non-scrap portion of the flat display panel while the scrap portion is being separated; and

a first elastic member coupled to the first rod to support a sliding motion of the first rod.

4. The apparatus of claim 3, wherein the chip blocking unit further comprises a second blocking member formed at an upper end of the first blocking member and extending in an upward direction.

5. The apparatus of claim 3, wherein the scrap breaker comprises:

a second rod slidably coupled to the connection member;

a delivery member connected to the second rod;

a pad coupled to the delivery member, the pad gripping the scrap portion while the scrap portion is being separated, a gripping force being supplied to the pad from the delivery member; and

a second elastic member coupled to the second rod to support a sliding motion of the second rod.

6. The apparatus of claim 5, wherein the chip blocking unit and the scrap breaker are in one of states that include:

a first state in which the first blocking member and the pad do not contact the flat display panel and a lower edge of the first blocking member is positioned lower than the pad; and

a second state in which the first blocking member and the pad contact the flat display panel.

7. The apparatus of claim 1, wherein the flat display panel is an organic light emitting diode (OLED) display.

8. The apparatus of claim 1, wherein the scribing line is formed on a front substrate of the flat display panel.

9. The apparatus of claim 8, wherein the front substrate including a light emitting surface.

10. The apparatus of claim 1, wherein the scrap breaker is disposed over the flat display panel.

11. An apparatus for cutting an organic light emitting diode display comprising:

a stage having a continuous seamless surface along the entire length of the stage, the organic light emitting diode display being disposed on the stage, the continuous seamless surface of the stage completely covering the organic light emitting diode display, the organic light emitting diode display having a scrap portion, a non-scrap portion, and a scribing line formed between the scrap portion and the non-scrap portion;

a scrap breaker capable of gripping and lifting the scrap portion of the organic light emitting diode display that is to be separated from the organic light emitting diode display;

a chip blocking unit disposed over the non-scrap portion of the organic light emitting diode display, the chip blocking unit contacting the non-scrap portion of the organic light emitting diode display while the scrap portion is being separated from the organic light emitting diode display; and

a connection member to connect the chip blocking unit to the scrap breaker, each of the scrap breaker and the chip blocking unit being capable of performing a descending operation to contact the organic light emitting diode display, the chip blocking unit moving by a first stroke distance with respect to the connection member while descending to contact the organic light emitting diode display, the scrap breaker moving by a second stroke distance with respect to the connection member while descending to contact the organic light emitting diode display, the first stroke distance is larger than the second stroke distance.

12. The apparatus of claim 11, further comprising:

a driving member for lifting and lowering the connection member.

13. The apparatus of claim 12, wherein the chip blocking unit comprises:

a first rod slidably coupled to the connection member;

a first blocking member connected to the first rod and disposed to touch the non-scrap portion of the flat display panel while the scrap portion is being separated; and

a first elastic member coupled to the first rod to support a sliding motion of the first rod.

14. The apparatus of claim 13, wherein the scrap breaker comprises:

a second rod slidably coupled to the connection member;

a delivery member connected to the second rod;

a pad coupled to the delivery member, the pad gripping the scrap portion while the scrap portion is being separated, a gripping force being supplied to the pad from the delivery member; and

a second elastic member coupled to the second rod to support a sliding motion of the second rod.