Display devices and methods of manufacturing display devices

Patent metadata

Field	Value
Publication number	US-9450034-B2
Application number	US-201414498984-A
Country	US
Kind code	B2
Filing date	Sep 26, 2014
Priority date	Sep 30, 2013
Publication date	Sep 20, 2016
Grant date	Sep 20, 2016

Abstract

A display device includes a substrate including a display region and a peripheral region, display structures at the display region of the substrate, a plurality of blocking structures at the peripheral region of the substrate wherein the blocking structures have heights different from each other, an organic layer on the display structures and the blocking structures, and an inorganic layer on the organic layer.

First claim

What is claimed is:

1. A display device comprising:
a substrate comprising a display region and a peripheral region;
display structures at the display region of the substrate;
a plurality of blocking structures at the peripheral region of the substrate, at least two of the blocking structures having different heights;
an organic layer on the display structures and contacting at least one blocking structure of the blocking structures;
an inorganic layer on the organic layer and on the at least one blocking structure;
wirings at the display region and the peripheral region of the substrate;
an insulation layer on the wirings; and
a protection member on the insulation layer and on a portion of an outermost wiring of the wirings exposed by the insulation layer,
wherein each of the display structures comprises:
a first electrode on the insulation layer;
a light emitting layer on the first electrode; and
a second electrode on a pixel defining layer, a spacer, and the light emitting layer,

wherein the plurality of blocking structures comprise a first blocking structure, a second blocking structure, and a third blocking structure, and
wherein the first blocking structure comprises a first metal layer pattern and a first insulation layer pattern, wherein the second blocking structure comprises a second metal layer pattern, a second insulation layer pattern, and a third insulation layer pattern, and wherein the third blocking structure comprises a third metal layer pattern, a fourth insulation layer pattern, a fifth insulation layer pattern, and a sixth insulation layer pattern.

2. The display device of claim 1 , wherein the first metal layer pattern is a portion of the protection member, the second metal layer pattern is a portion of the outermost wiring, and the third metal layer pattern comprises a same material as that of the wirings.

3. The display device of claim 1 , wherein each of the second insulation layer pattern and the fourth insulation layer pattern comprises a same material as that of the insulation layer.

4. The display device of claim 1 , wherein each of the first insulation layer pattern, the third insulation layer pattern, and the fifth insulation layer pattern comprises a same material as that of the pixel defining layer.

5. The display device of claim 1 , wherein the sixth insulation layer pattern comprises a same material as that of the spacer.

6. The display device of claim 1 , further comprising a fourth blocking structure adjacent to the third blocking structure and at the peripheral region.

7. The display device of claim 6 , wherein the fourth blocking structure has a height that is substantially the same as a height of the third blocking structure.

8. The display device of claim 6 , wherein the fourth blocking structure comprises a fourth metal layer pattern, a seventh insulation layer pattern, an eighth insulation layer pattern, and a ninth insulation layer pattern.

9. The display device of claim 8 , wherein the fourth metal layer pattern comprises a same material as that of the wirings, the seventh insulation layer pattern comprises a same material as that of the insulation layer, the eighth insulation layer pattern comprises a same material as that of a pixel defining layer, and the ninth insulation layer pattern comprises a same material as that of a spacer.

10. A display device of comprising:
a substrate comprising a display region and a peripheral region;
display structures at the display region of the substrate;
a plurality of blocking structures at the peripheral region of the substrate, at least two of the blocking structures having different heights, wherein each of the blocking structures comprise a plurality of blocking patterns;
an organic layer on the display structures and contacting at least one of the blocking structures;
an inorganic layer on the organic layer and on the at least one blocking structure;
wirings at the display region and the peripheral region of the substrate;
an insulation layer on the wirings; and
a protection member on the insulation layer and on a portion of an outermost wiring of the wirings exposed by the insulation layer;
wherein each of the display structures comprises:
a first electrode on the insulation layer;
a light emitting layer on the first electrode; and
a second electrode on a pixel defining layer, a spacer, and the light emitting layer,

wherein the plurality of blocking structures comprise a first blocking structure on the outermost wiring and a second blocking structure adjacent to the first blocking structure.

11. The display device of claim 10 , wherein the first blocking structure comprises a metal layer pattern that is a portion of the outermost wiring and two insulation layer patterns, and wherein the second blocking structure comprises a metal layer pattern and three insulation layer patterns.

12. The display device of claim 10 , wherein the plurality of blocking structures comprise a first blocking structure on the protection member and a second blocking structure on the outermost wiring.

13. The display device of claim 12 , wherein the first blocking structure comprises a metal layer pattern that is a portion of the protection member and one insulation layer pattern, and wherein the second blocking structure comprises a metal layer pattern that is a portion of the outermost wiring and two insulation layer patterns.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Sun-Youl
• You Yeon-Heok
• Seo Sang-Won
• Yu Jung-Ju

Classifications

• H10K59/8731

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K59/8723

  Vertical spacers, e.g. arranged between the sealing arrangement and the OLED · CPC title

• H10K59/122

  Pixel-defining structures or layers, e.g. banks · CPC title

• H10K59/124 Primary

  Insulating layers formed between TFT elements and OLED elements · CPC title

• H01L27/3258

  Electricity · mapped topic