Electronic device

Patent metadata

Field	Value
Publication number	US-11768567-B2
Application number	US-202217830860-A
Country	US
Kind code	B2
Filing date	Jun 2, 2022
Priority date	May 22, 2020
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

Provided is an electronic device including a display element layer, an encapsulation layer, a sensor layer including a sensing electrode disposed in an active area, and a sensing line disposed in the line area, electrically connected with the sensing electrode, and extending in a first direction, and a high refraction layer disposed on the sensor layer. The sensor layer further includes a first conductive layer disposed on the encapsulation layer, a second conductive layer disposed on the first conductive layer, an inorganic insulation layer disposed between the first conductive layer and the second conductive layer, and an organic insulation layer disposed between the second conductive layer and the high refraction layer. In the line area, at least one opening is defined in the organic insulation layer, the at least one opening extending in a second direction, and the inorganic insulation layer is exposed by the at least one opening.

First claim

What is claimed is:

1. An electronic device including an active area and a peripheral area disposed adjacent to the active area, the electronic device comprising:
a display layer;
a sensor layer disposed on the display layer; and
a high refraction layer disposed on the sensor layer, wherein
the sensor layer comprises:
a first conductive layer;
a second conductive layer disposed on the first conductive layer;
an inorganic insulation layer disposed between the first conductive layer and the second conductive layer; and
an organic insulation layer disposed between the second conductive layer and the high refraction layer,

in the peripheral area, at least one opening is defined in the organic insulation layer, and
in the at least one opening of the organic insulation layer, the inorganic insulation layer does not overlap the organic insulation layer and the second conductive layer.

2. The electronic device of claim 1 , wherein
a plurality of contact holes are defined in the inorganic insulation layer, and
the plurality of the contact holes comprises a first contact hole and a second contact hole defined at a side and another side of the at least one opening of the organic insulation layer, respectively.

3. The electronic device of claim 2 , wherein the first conductive layer and the second conductive layer are electrically connected to each other through the first contact hole and the second contact hole of the plurality of contact holes.

4. The electronic device of claim 2 , wherein the first contact hole and the second contact hole of the plurality of contact holes are filled by the second conductive layer.

5. The electronic device of claim 2 , wherein the first contact hole and the second contact hole of the plurality of contact holes overlap the organic insulation layer and do not overlap the high refraction layer.

6. The electronic device of claim 1 , wherein the sensor layer comprises: a sensing electrode disposed in the active area; and a sensing line disposed in the first peripheral area, electrically connected with the sensing electrode, and extending in a first direction, and wherein the at least one opening of the organic insulation layer extends in a second direction different from the first direction.

7. The electronic device of claim 6 , wherein
the first direction extends from the active area to the peripheral area, and
the second direction is perpendicular to the first direction.

8. The electronic device of claim 1 , further comprising a plurality of dam parts disposed in the peripheral area and surrounding at least a portion of the active area,
wherein the plurality of dam parts are disposed adjacent to the active area and do not overlap the at least one opening of the organic insulation layer.

9. The electronic device of claim 8 , wherein the peripheral area comprises:
a first part disposed adjacent to the active area where the plurality of dam parts are disposed;
a second part overlapping the at least one opening of the organic insulation layer; and
a third part disposed between the first part and the second part, wherein
the inorganic insulation layer, the organic insulation layer, and the high refraction layer overlap each other in the first part of the peripheral,
the inorganic insulation layer does not overlap the organic insulation layer and the high refraction layer in the second part of the peripheral, and
the inorganic insulation layer overlaps the organic insulation layer and is not in overlap with the high refraction layer in the third part of the peripheral.

10. The electronic device of claim 9 , wherein
the first conductive layer, the inorganic insulation layer, the second conductive layer, the organic insulation layer, and the high refraction layer are sequentially formed in the first part of the peripheral,
the first conductive layer and the inorganic insulation layer are formed in the second part of the peripheral, and
the first conductive layer, the inorganic insulation layer, the second conductive layer, and the organic insulation layer are sequentially formed in the third part of the peripheral.

11. The electronic device of claim 10 , further comprising:
an adhesive layer disposed on the high refraction layer; and
a polarizer layer disposed on the adhesive layer, wherein
the adhesive layer contacts the high refraction layer in the first part of the peripheral area,
the adhesive layer contacts the inorganic insulation layer in the second part of the peripheral area, and
the adhesive layer contacts the organic insulation layer in the third part of the peripheral area.

12. The electronic device of claim 1 , wherein
the at least one opening of the organic insulation layer comprises:
a bottom portion defined by the inorganic insulation layer; and
a side portion defined by the organic insulation layer covering the second conductive layer, and

an inclined angle of the side portion with respect to the bottom portion is in a range from about 100° to about 110°.

13. The electronic device of claim 8 , wherein
the plurality of dam parts comprise:
a first dam part disposed adjacent to the active area;
a second dam part disposed outside the first dam part; and
a third dam part disposed outside the second dam part, and

the high refraction layer has a thickness that gradually decreases in a direction from the first dam part to the third dam part.

14. The electronic device of claim 13 , wherein an edge of the high refraction layer overlaps the third dam part in a plan view.

15. The electronic device of claim 1 , wherein the high refraction layer has a refractive index equal to or greater than 1.6.

16. The electronic device of claim 1 , further comprising a plurality of sub-protruding parts spaced apart from each other in the at least one opening of the inorganic insulation layer.

17. The electronic device of claim 16 , wherein the plurality of sub-protruding parts and the organic insulation layer include a same material.

18. An electronic device including an active area, a first peripheral area disposed adjacent to the active area, and a second peripheral area spaced apart from the active area and disposed adjacent to the first peripheral area, the electronic device comprising:
a display element layer;
an encapsulation layer disposed on the display element layer;
a sensor layer disposed on the encapsulation layer, the sensor layer comprising:
a sensing electrode disposed in the active area; and
a sensing line disposed in the first peripheral area, electrically connected with the sensing electrode, and extending in a first direction; and

a high refraction layer disposed on the sensor layer, wherein
each of the sensing electrode and the sensing line comprises:
a first conductive layer;
a second conductive layer disposed on the first conductive layer;
an inorganic insulation layer disposed between the first conductive layer and the second conductive layer; and
an organic insulation layer disposed between the second conductive layer and the high refraction layer,

in the first peripheral area, a first opening and a second opening, each of which extends in a second direction different from the first direction, are defined in the organic insulation layer in the first peripheral area,
the second opening is disposed closer to the second peripheral area than the first opening,
a first contact hole is defined in the inorganic insulation layer in the first peripheral area at a side of the first opening in the first peripheral area adjacent to the active area, and
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Assignees

• Samsung Display Co Ltd

Inventors

• Kim Il-Joo
• Kim Deokjung
• Choi Wonjun
• Jung Youngbae

Classifications

• H10K59/879 Primary

  comprising refractive means, e.g. lenses · CPC title

• H10K59/873

  Encapsulations · CPC title

• G06F3/0443 Primary

  using a single layer of sensing electrodes · CPC title

• G06F3/0446

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• H10K59/40

  OLEDs integrated with touch screens · CPC title