IP Library Patent Application 18461542
Patent Application
App. No. 18/461,542

DISPLAY DEVICE

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Quick Facts
Patent No.
US None
App. No.
18/461,542
Abstract

According to one embodiment, a display device includes a lower electrode, a rib including a pixel aperture, a partition including a conductive lower portion on the rib and an upper portion protruding from a side surface of the lower portion, an organic layer covering the lower electrode through the pixel aperture, an upper electrode covering the organic layer, a first sealing layer covering a display element, a first resin layer located above the first sealing layer, and a color filter which faces the display element via the first sealing layer and the first resin layer.

Claims (54)

1 . A display device comprising:

a lower electrode;

a rib comprising a pixel aperture which overlaps the lower electrode;

a partition including a conductive lower portion on the rib and an upper portion which protrudes from a side surface of the lower portion;

an organic layer which covers the lower electrode through the pixel aperture and emits light based on application of voltage;

an upper electrode which covers the organic layer and is in contact with the side surface of the lower portion;

a first sealing layer which is formed of an inorganic material and covers a display element including the lower electrode, the organic layer and the upper electrode;

a first resin layer located above the first sealing layer; and

a color filter which faces the display element via the first sealing layer and the first resin layer.

2 . The display device of claim 1 , further comprising a second sealing layer which is formed of an inorganic material and covers the first resin layer, wherein

the color filter is provided on the second sealing layer.

3 . The display device of claim 2 , further comprising a dam structure provided in a surrounding area around a display area including the display element, wherein

the dam structure includes a plurality of protrusions, and

the second sealing layer covers at least part of the protrusions.

4 . The display device of claim 2 , further comprising a third sealing layer formed of an inorganic material and located between the first sealing layer and the first resin layer, wherein

an end portion of the first resin layer is covered with the second sealing layer and the third sealing layer.

5 . The display device of claim 2 , further comprising a second resin layer which covers the color filter.

6 . The display device of claim 5 , further comprising a fourth sealing layer which is formed of an inorganic material and covers the second resin layer, wherein

an end portion of the second resin layer is covered with the second sealing layer and the fourth sealing layer.

7 . The display device of claim 6 , further comprising a third resin layer which covers the fourth sealing layer.

8 . The display device of claim 1 , further comprising:

a first substrate in which the lower electrode, the rib, the partition, the organic layer, the upper electrode and the first sealing layer are provided;

a second substrate in which the color filter is provided; and

an adhesive layer for attaching the first substrate and the second substrate to each other.

9 . The display device of claim 1 , further comprising a light-shielding layer which faces the partition via the first sealing layer and the first resin layer.

10 . The display device of claim 9 , further comprising:

a conductive layer provided in a surrounding area around a display area including the display element and connected to the partition;

a feed line provided in the surrounding area; and

a contact portion which connects the feed line and the conductive layer to each other, wherein

the light-shielding layer faces the contact portion.

11 . A display device comprising:

a lower electrode;

a rib comprising a pixel aperture which overlaps the lower electrode;

a partition including a conductive lower portion on the rib and an upper portion which protrudes from a side surface of the lower portion;

an organic layer which covers the lower electrode through the pixel aperture and emits light based on application of voltage;

an upper electrode which covers the organic layer and is in contact with the side surface of the lower portion;

a first sealing layer which is formed of an inorganic material and covers display elements each including the lower electrode, the organic layer and the upper electrode;

a first resin layer located above the first sealing layer; and

a color filter which faces the display elements via the first sealing layer and the first resin layer, wherein

the partition surrounds the display elements.

12 . The display device of claim 11 , wherein

the organic layers of the display elements are divided by the partition.

13 . The display device of claim 12 , wherein

the first sealing layer continuously covers the organic layers of the display elements and the partition.

14 . The display device of claim 11 , wherein

the display elements include a first display element, a second display element and a third display element, and

the color filter includes a first color filter overlapping the first display element and having a first color, a second color filter overlapping the second display element and having a second color, and a third color filter overlapping the third display element and having a third color filter.

15 . The display device of claim 14 , wherein

the rib comprises a first pixel aperture which overlaps the first display element, a second pixel aperture which overlaps the second display element and a third pixel aperture which overlaps the third display element, and

sizes of the first pixel aperture, the second pixel aperture and the third pixel aperture are different from each other.

16 . The display device of claim 14 , further comprising a light-shielding layer provided in boundaries of the first color filter, the second color filter and the third color filter, wherein

the light-shielding layer faces the partition via the first sealing layer and the first resin layer.

17 . The display device of claim 16 , wherein

a width of the light-shielding layer is greater than a width of the partition.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 27, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 071751/0446 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 6, 2023
From: HANARI, JUN
To: JAPAN DISPLAY INC.
Reel/Frame 064805/0938 →