IP Library Granted Patent US 7,034,914
Granted Patent B1
US 7,034,914 · App. 09/653,202 · Granted Apr 25, 2006

Method of forming a seal pattern comprising bent portions circumventing a conductive contact dot for liquid crystal display device

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Quick Facts
Patent No.
US 7,034,914
App. No.
09/653,202
Granted
Apr 25, 2006
Kind
B1
Abstract

The present invention discloses a method of forming a seal pattern of a liquid crystal display panel having a liquid crystal layer comprising the steps of: forming common electrodes over a first substrate; forming a plurality of conductive contact dots on the second substrate; forming a seal pattern along edges of the second substrate, said seal pattern having a plurality of triangular bent portions, the bent portions being bent toward inside of the second substrate; and forming a liquid crystal layer between first and second substrates.

Claims (86)

1. A method of forming a liquid crystal display panel, comprising:

forming a common electrode on a first substrate;

forming a plurality of conductive contact dots on a second substrate;

forming a seal pattern on the second substrate, the seal pattern having a plurality of triangular bent portions each having an open side and a vertex opposite the open side, the vertex directed toward a display area of the second substrate, wherein each triangular bent portion circumvents a conductive contact dot;

assembling the first substrate and the second substrate; and

forming a liquid crystal layer between the first and second substrates.

2. The method according to claim 1 , wherein the conductive contact dot comprises a silver (Ag).

3. The method according to claim 1 , wherein the triangular bent portions each include a first vertex, a second vertex, and a third vertex.

4. The method according to claim 3 , wherein the first vertex, the second vertex, and the third vertex all have a rounded shape that is defined by a radius.

5. The method according to claim 4 , wherein the radius is about 0.5 to about 2 millimeters.

6. The method according to claim 4 , wherein a distance between the first vertex and the second vertex is about 5 to about 20 millimeters.

7. The method according to claim 4 , wherein a distance between the conductive contact dot and the third vertex is about 0.1 to about 1 millimeters.

8. The method according to claim 1 , wherein the seal pattern is formed by a dispenser.

9. The method according to claim 1 , wherein the display region is defined within a closed formation of the seal pattern.

10. The method according to claim 9 , wherein the conductive contact dot is located outside the display region.

11. The method according to claim 1 , wherein the conductive contact dot is located outside the display region.

12. A method of forming a liquid crystal display panel, comprising:

forming a common electrode on a first substrate;

forming a plurality of conductive contact dots on a second substrate;

forming a seal pattern on the second substrate, the seal pattern having a plurality of triangular bent portions that each have a vertex that is directed toward an inside of the second substrate, wherein each triangular bent portion circumvents a conductive contact dot;

assembling the first substrate and the second substrate; and

forming a liquid crystal layer between the first and second substrates,

wherein the triangular bent portions each include a first vertex, a second vertex and a third vertex,

wherein the first vertex, the second vertex, and the third vertex all have a rounded shape that is defined by the radius and wherein the radius is 0.5 to 2 millimeters.

13. A method of forming a liquid crystal display panel, comprising:

forming a common electrode on a first substrate;

forming a plurality of conductive contact dots on a second substrate;

forming a seal pattern on the second substrate, the seal pattern having a plurality of triangular bent portions that each have a vertex that is directed toward an inside of the second substrate, wherein each triangular bent portion circumvents a conductive contact dot;

assembling the first substrate and the second substrate; and

forming a liquid crystal layer between the first and second substrates,

wherein the triangular bent portions each include a first vertex, a second vertex and a third vertex,

wherein the first vertex, the second vertex, and the third vertex all have a rounded shape that is defined by the radius and wherein a distance between the first vertex and the second vertex is about 5 to about 20 millimeters.

14. A method of forming a liquid crystal display panel, comprising:

forming a common electrode on a first substrate;

forming a plurality of conductive contact dots on a second substrate;

forming a seal pattern on the second substrate, the seal pattern having a plurality of triangular bent portions that each have a vertex that is directed toward an inside of the second substrate, wherein each triangular bent portion circumvents a conductive contact dot;

assembling the first substrate and the second substrate; and

forming a liquid crystal layer between the first and second substrates,

wherein the triangular bent portions each include a first vertex, a second vertex and a third vertex,

wherein the first vertex, the second vertex, and the third vertex all have a rounded shape that is defined by the radius, and

wherein a distance between the conductive contact dot and the third vertex is about 0.1 to about 1 millimeter.

15. A method of forming a liquid crystal display panel, comprising:

forming a common electrode on a first substrate;

forming a plurality of conductive contact dots on the second substrate;

forming a seal pattern on the second substrate, the seal pattern having a plurality of semicircular bent portions, the semicircular bent portions each having an open portion and an arc portion opposite the open portion, the arc portion being closer to a display region of the second substrate than the open portion, wherein each semicircular bent portion circumvents a conductive contact dot;

assembling the first substrate and the second substrate; and

forming a liquid crystal layer between first and second substrates,

wherein the semicircular portion has a radius of about 2.5 to about 10 millimeters.

16. The method according to claim 15 , wherein the display region is defined within a closed formation of the seal pattern.

17. The method according to claim 16 , wherein the conductive contact dot is located outside the display region.

18. The method according to claim 15 , wherein the conductive contact dot is located outside the display region.

19. A method of forming a liquid crystal display panel, comprising:

forming a common electrode on a first substrate;

forming a plurality of conductive contact dots on the second substrate;

forming a seal pattern on the second substrate, the seal pattern having a plurality of semicircular bent portions, the semicircular bent portions being bent toward an inside of the second substrate wherein each semicircular bent portion circumvents a conductive contact dot;

assembling the first substrate and the second substrate; and

forming a liquid crystal layer between first and second substrates

wherein each of the two ends of the semicircular portion has a radius of about 0.5 to about 2 mm.

20. A method of forming a liquid crystal display panel, comprising:

forming a common electrode on a first substrate;

forming a plurality of conductive contact dots on the second substrate;

forming a seal pattern on the second substrate, the seal pattern having a plurality of semicircular bent portions, the semicircular bent portions being bent toward an inside of the second substrate wherein each semicircular bent portion circumvents a conductive contact dot;

assembling the first substrate and the second substrate; and

forming a liquid crystal layer between first and second substrates

wherein the semicircular portion has a radius of about 2.5 to about 10 millimeters.

21. A method of forming a liquid crystal display panel, comprising:

forming a common electrode on a first substrate;

forming a plurality of conductive contact dots on the second substrate;

forming a seal pattern on the second substrate, the seal pattern having a plurality of semicircular bent portions, the semicircular bent portions being bent toward an inside of the second substrate wherein each semicircular bent portion circumvents a conductive contact dot;

assembling the first substrate and the second substrate; and

forming a liquid crystal layer between first and second substrates

wherein a distance between the conductive contact dot and the semicircular portion is about 0.1 to about 1 millimeter.

22. A method of forming a liquid crystal display panel, comprising:

forming a common electrode on a first substrate;

forming a plurality of conductive contact dots on the second substrate;

forming a seal pattern on the second substrate, the seal pattern having a plurality of semicircular bent portions, the semicircular bent portions each having an open portion and an arc portion opposite the open portion, the arc portion being closer to a display region of the second substrate than the open portion, wherein each semicircular bent portion circumvents a conductive contact dot;

assembling the first substrate and the second substrate; and

forming a liquid crystal layer between first and second substrates,

wherein each of the two ends of the semicircular portion has a radius of about 0.5 to about 2 mm.

23. A method of forming a liquid crystal display panel, comprising:

forming a common electrode on a first substrate;

forming a plurality of conductive contact dots on the second substrate;

forming a seal pattern on the second substrate, the seal pattern having a plurality of semicircular bent portions, the semicircular bent portions each having an open portion and an arc portion opposite the open portion, the arc portion being closer to a display region of the second substrate than the open portion, wherein each semicircular bent portion circumvents a conductive contact dot;

assembling the first substrate and the second substrate; and

forming a liquid crystal layer between first and second substrates,

wherein a distance between the conductive contact dot and the semicircular portion is about 0.1 to about 1 millimeter.

Assignments (1)
CHANGE OF NAME Recorded Oct 17, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021763/0177 →