DISPLAY PANEL AND MOTHER SUBSTRATE FOR DISPLAY PANELS

• US 20170307935A1
• Filed: 11/22/2016
• Published: 10/26/2017
• Est. Priority Date: 04/26/2016
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: PARK, Seung Won, LEE, Dae Young, LEE, Dong Eon, JANG, Dae Hwan, JO, Gug Rae
• Granted Patent: US 10,139,673 B2
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/133345 Insulating layers G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take 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 1/133354 Arrangements for aligning or assembling substrates
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/133536 Reflective polarizers G02F1/13362 takes precedence
• CPC Class Codes: G02F 1/133548 Wire-grid polarisers
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G02F 1/13439 characterised by their electrical, optical, physical properties; materials therefor; method of making
• CPC Class Codes: G02F 1/136231 for reducing the number of lithographic steps
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G02F 1/1368 in which the switching element is a three-electrode device G02F1/136277 takes precedence
• CPC Class Codes: G02F 2201/121 common or background
• CPC Class Codes: G02F 2201/123 pixel

Abstract

Provided is a display panel including a base substrate which includes a display area and a non-display area, a polarizing member disposed on a surface of the base substrate and including a plurality of grid patterns overlapping the display area and a reflective pattern overlapping the non-display area, and a pixel array layer which overlaps the polarizing member and is insulated from the polarizing member, wherein a first height from the surface of the base substrate to an upper surface of the reflective pattern is different from a second height from the surface of the base substrate to upper surfaces of the grid patterns.

Claims

1. A display panel comprising:

a base substrate which comprises a display area and a non-display area;

a polarizing member disposed on a surface of the base substrate and comprising a plurality of grid patterns overlapping the display area and a reflective pattern overlapping the non-display area; and

a pixel array layer which overlaps the polarizing member and is insulated from the polarizing member,

wherein a first height from the surface of the base substrate to an upper surface of the reflective pattern is different from a second height from the surface of the base substrate to upper surfaces of the grid patterns.

2. The display panel of claim 1, wherein the second height is greater than the first height.

3. The display panel of claim 2, wherein the grid patterns comprise:

lower grid patterns disposed on the surface of the base substrate and comprising the same first material as the reflective pattern, and

upper grid patterns disposed on the lower grid patterns and comprising a second material s different from the first material.

4. The display panel of claim 3, wherein a height from the surface of the base substrate to upper surfaces of the lower grid patterns is equal to the first height.

5. The display panel of claim 3, further comprising:

a residual mask pattern disposed on the reflective pattern; and

residual mask grid patterns disposed on the upper grid patterns.

6. The display panel of claim 1, wherein the first height is greater than the second height.

7. The display panel of claim 6, wherein the reflective pattern comprises:

a lower reflective pattern disposed on the surface of the base substrate and comprising the same first material as the grid patterns, and

an upper reflective pattern disposed on the lower reflective pattern and comprising a second material different from the first material.

8. The display panel of claim 7, wherein a height from the surface of the base substrate to an upper surface of the lower reflective pattern is equal to the second height.

9. The display panel of claim 7, further comprising:

first residual mask grid patterns disposed on the upper reflective pattern; and

second residual mask grid patterns disposed on the grid patterns.

10. The display panel of claim 1, wherein the pixel array layer comprises:

a thin-film transistor which overlaps the reflective pattern, and

a pixel electrode which is electrically connected to the thin-film transistor and overlaps the grid patterns.

11. The display panel of claim 10, wherein the polarizing member is disposed between the base substrate and the pixel array layer.

12. A mother substrate for display panels, the mother substrate comprising:

a base substrate which comprises a panel area comprising a display area and a non-display area, an align key area, and a surrounding area of the panel area and the align key area; and

a polarizing member disposed on a surface of the base substrate and comprising a plurality of grid patterns overlapping the display area, a reflective pattern overlapping the non-display area, and an align key overlapping the align key area,

wherein a first height from the surface of the base substrate to an upper surface of the reflective pattern is different from a second height from the surface of the base substrate to upper surfaces of the grid patterns, and a third height from the surface of the base substrate to an upper surface of the align key is equal to the first height or the second height.

13. The mother substrate of claim 12, wherein the second height is greater than the first height, and the third height is equal to the second height.

14. The mother substrate of claim 13, wherein the grid patterns comprise:

lower grid patterns disposed on the surface of the base substrate and comprising the same first material as the reflective pattern, and

upper grid patterns disposed on the lower grid patterns and comprising a second material different from the first material; and

the align key comprises;

a lower align key pattern disposed on the surface of the base substrate and comprising the first material, and

an upper align key pattern disposed on the lower align key pattern and comprising the second material.

15. The mother substrate of claim 14, wherein a height from the surface of the base substrate to an upper surface of the lower align key pattern is equal to the first height.

16. The mother substrate of claim 14, further comprising:

a first residual mask pattern disposed on the reflective pattern;

residual mask grid patterns disposed on the upper grid patterns; and

a second residual mask pattern disposed on the upper align key pattern.

17. The mother substrate of claim 12, wherein the first height is greater than the second height, and the third height is equal to the first height.

18. The mother substrate of claim 17, wherein the reflective pattern comprises:

a lower reflective pattern disposed on the surface of the base substrate and comprising the same first material as the grid patterns, and

an upper reflective pattern disposed on the lower reflective pattern and comprising a second material different from the first material; and

the align key comprises;

a lower align key pattern disposed on the surface of the base substrate and comprising the first material, and

an upper align key pattern disposed on the lower align key pattern and comprising the second material.

19. The mother substrate of claim 18, wherein a height from the surface of the base substrate to an upper surface of the lower align key pattern is equal to the second height.

20. The mother substrate of claim 18, further comprising:

first residual mask grid patterns disposed on the upper reflective pattern; and

second residual mask grid patterns disposed on the grid patterns; and

a residual mask pattern disposed on the upper align key pattern.