LIQUID CRYSTAL DISPLAY AND MANUFACTURING METHOD THEREOF

• US 20150160519A1
• Filed: 11/13/2014
• Published: 06/11/2015
• Est. Priority Date: 12/10/2013
• Status: Abandoned Application

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: CHO, Young Je, KIM, Sung Man, LEE, Yu Jin
• Application Number:
  US14/540,062
• Publication Number:
  US 20150160519A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02F 1/1339 Gaskets; Spacers; Sealing of cells
• CPC Class Codes: G02F 1/13396 Spacers having different sizes
• CPC Class Codes: G02F 1/134363 for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]

Abstract

A liquid crystal display includes a first substrate, a plurality of signal lines on the first substrate, a first insulating layer positioned on the plurality of signal lines, a first electrode positioned on the first insulating layer, a second insulating layer positioned on the first electrode, a second electrode positioned on the second insulating layer, a second substrate facing the first substrate, a first spacer and a second spacer positioned between the first substrate and the second substrate, and a first cutout and a second cutout which are defined in the second electrode and the second insulating layer, respectively, and partially overlap the plurality of signal lines, where the second spacer overlaps the first cutout and the second cutout.

Claims

1. A liquid crystal display comprising:

a first display panel which comprises;

a first substrate;

a plurality of signal lines on the first substrate;

a first insulating layer positioned on the plurality of signal lines;

a first electrode positioned on the first insulating layer;

a second insulating layer positioned on the first electrode; and

a second electrode positioned on the second insulating layer;

a second display panel which faces the first display panel and comprises a second substrate facing the first substrate;

a first spacer and a second spacer positioned between the first display panel and the second display panel, and

a first cutout and a second cutout which are defined in the second electrode and the second insulating layer, respectively, and partially overlap the plurality of signal lines,

wherein the second spacer overlaps the first cutout and the second cutout.

2. The liquid crystal display of claim 1, wherein

an edge of the first cutout overlaps an edge of the second cutout.

3. The liquid crystal display of claim 2, wherein:

a plurality of third cutouts is defined in the second electrode and overlaps the first electrode; and

the second electrode includes a plurality of branch electrodes defined by the plurality of third cutouts.

4. The liquid crystal display of claim 3, wherein:

a plurality of fourth cutouts is defined in the second insulating layer at the same position as the plurality of third cutouts; and

an edge of the plurality of third cutouts overlaps an edge of the plurality of fourth cutouts.

5. The liquid crystal display of claim 4, wherein:

the first spacer contacts the first display panel and the second display panel; and

the second spacer is separated from one of the first display panel and the second display panel by a first interval.

6. The liquid crystal display of claim 5, wherein

the first interval is larger than a thickness of the second electrode and a thickness of the second insulating layer.

7. The liquid crystal display of claim 6, wherein

heights of the first spacer and the second spacer are different from each other.

8. The liquid crystal display of claim 6, wherein:

the second electrode is provided at a first pixel area and a second pixel area adjacent to each other;

the second electrode further includes a fifth cutout overlapping the second spacer;

the first cutout of the second electrode is positioned at the first pixel area;

the fifth cutout of the second electrode is positioned at the second pixel area; and

an interval between the plurality of third cutouts and the first cutout of the second electrode defined at the first pixel area is different from an interval between the plurality of third cutouts and the fifth cutout of the second electrode defined at the second pixel area.

9. The liquid crystal display of claim 3, wherein:

the second electrode is provided at a first pixel area and a second pixel area adjacent to each other;

the second electrode further includes a fifth cutout overlapping the second spacer;

the first cutout of the second electrode is positioned at the first pixel area;

the fifth cutout of the second electrode is positioned at the second pixel area; and

an interval between the plurality of third cutouts and the first cutout of the second electrode provided at the first pixel area is different from an interval between the plurality of third cutouts and the fifth cutout of the second electrode provided at the second pixel area.

10. The liquid crystal display of claim 1, wherein:

the first spacer contacts the first display panel and the second display panel; and

the second spacer is separated from one of the first display panel and the second display panel by a first interval.

11. The liquid crystal display of claim 10, wherein

the first interval is larger than a thickness of the second electrode and a thickness of the second insulating layer.

12. The liquid crystal display of claim 11, wherein

heights of the first spacer and the second spacer are different from each other.

13. The liquid crystal display of claim 1, wherein:

a plurality of third cutouts is defined in the second electrode and overlaps the first electrode; and

the second electrode includes a plurality of branch electrodes defined by a plurality of third cutouts.

14. The liquid crystal display of claim 13, wherein:

a plurality of fourth cutouts is defined in the second insulating layer at the same position as the plurality of third cutouts; and

an edge of the plurality of third cutouts overlaps an edge of the plurality of fourth cutouts.

15. A method manufacturing a liquid crystal display comprising:

disposing a first substrate in a first display panel;

disposing a plurality of signal lines on the first substrate in the first display panel;

disposing a first insulating layer on the plurality of signal lines in the first display panel;

disposing a first electrode on the first insulating layer in the first display panel;

disposing a second insulating layer on the first electrode in the first display panel;

disposing a second electrode on the second insulating layer, and defining a first cutout in the second electrode and overlapping a portion of the signal lines among the plurality of signal lines in the first display panel;

defining a second cutout in the second insulating layer and overlapping the portion of the signal lines among the plurality of signal lines in the first display panel;

disposing a second substrate in a second display panel facing the first display panel; and

providing a first spacer and a second spacer positioned between the first display panel and the second display panel, respectively,

wherein the second spacer is provided at a position overlapping the first cutout and the second cutout.

16. The method of claim 15, wherein

the defining the first cutout in the second electrode and overlapping the portion of the signal lines among the plurality of signal lines and the defining the second cutout in the second insulating layer and overlapping the portion of the signal lines among the plurality of signal lines, are simultaneously performed by using one photosensitive film pattern.

17. The method of claim 16, wherein:

the disposing the second electrode further includes defining a plurality of third cutouts in the second electrode and overlapping the first electrode; and

the second electrode includes a plurality of branch electrodes defined by the plurality of third cutouts.

18. The method of claim 17, wherein:

the defining the second cutout in the second insulating layer and overlapping the portion of the signal lines among the plurality of signal lines further includes defining a plurality of fourth cutouts in the second insulating layer at the same position as the plurality of third cutouts; and

the defining the plurality of third cutouts and the defining the plurality of fourth cutouts are simultaneously performed by using one photosensitive film pattern.

19. The method of claim 18, wherein:

the first spacer contacts the first display panel and the second display panel; and

the second spacer is separated from one of the first display panel and the second display panel by a first interval.

20. The method of claim 19, wherein

the first interval is defined to be larger than a thickness of the second electrode and a thickness of the second insulating layer.

21. The method of claim 20, wherein

heights of the first spacer and the second spacer are different from each other.

22. The method of claim 15, wherein:

the first spacer contacts the first display panel and the second display panel; and

the second spacer is separated from one of the first substrate and the second substrate by a first interval.

23. The method of claim 22, wherein

the first interval is larger than a thickness of the second electrode and a thickness of the second insulating layer.

24. The method of claim 23, wherein

heights of the first spacer and the second spacer are different from each other.

25. The method of claim 15, wherein:

the disposing the second electrode further includes defining a plurality of third cutouts in the second electrode and overlapping the first electrode; and

the second electrode includes a plurality of branch electrodes defined by the plurality of third cutouts.

26. The method of claim 25, wherein:

the defining the second cutout in the second insulating layer and overlapping the portion of the signal lines among the plurality of signal lines further includes defining a plurality of fourth cutouts in the second insulating layer at the same position as the plurality of third cutouts; and

the defining the plurality of third cutouts and the defining the plurality of fourth cutouts are simultaneously performed by using one photosensitive film pattern.