Display device

Patent metadata

Field	Value
Publication number	US-2020183518-A1
Application number	US-202016793311-A
Country	US
Kind code	A1
Filing date	Feb 18, 2020
Priority date	Aug 28, 2017
Publication date	Jun 11, 2020
Grant date	—

Abstract

A display device including a first sensor part that includes a first trunk portion, a first branch portion connected to the first trunk portion and extending in a direction different from a first direction and a second direction, a second branch portion spaced apart from the first branch portion, and a bridge connecting the first branch portion to the second branch portion. A second sensor part includes a second trunk portion extending in the second direction, and a third branch portion disposed between the first branch portion and the second branch portion.

First claim

What is claimed is:

1 . A display device comprising:
a display panel; and a sensing unit disposed on the display panel and comprising a first sensing electrode and a second sensing electrode, wherein: the first sensing electrode comprises a first sensor part comprising a first trunk portion extending in a first direction, a first branch portion extended from the first trunk portion, and a second branch portion electrically connected to the first trunk portion; the second sensing electrode comprises a second sensor part comprising:
a second trunk portion extending in a second direction intersecting the first direction; and
a third branch portion extended from the second trunk portion, wherein the third branch portion is disposed between the first branch portion and the second branch portion; and
the first branch portion extends in a direction different from the first direction and the second direction.

2 . The display device of claim 1 , wherein:
the second sensor part comprises two or more third branch portions; the two or more third branch portions are provided as a single body, and one of the two or more third branch portions is extended from one end area of the second trunk portion to another end area of the second trunk portion; and the second trunk portion and the one of the two or more third branch portions define an opening.

3 . The display device of claim 2 , wherein the second branch portion is disposed inside the opening.

4 . The display device of claim 2 , further comprising a dummy electrode disposed in the opening.

5 . The display device of claim 2 , wherein two third branch portions extend in different directions from each other.

6 . The display device of claim 1 , wherein:
the first sensor part is provided in plurality and the second sensor part is provided in plurality; and one electrode of the first sensing electrode and the second sensing electrode further comprises first bridges connecting adjacent ones of the plurality of first sensor parts or the plurality of second sensor parts.

7 . The display device of claim 6 , wherein the first bridges are disposed on a layer different from a layer on which the plurality of first sensor parts are disposed.

8 . The display device of claim 1 , wherein the first sensor part further comprises a second bridge connecting the first branch portion to the second branch portion.

9 . The display device of claim 8 , wherein the second bridge is disposed on a layer different from a layer on which the first branch portion is disposed.

10 . The display device of claim 8 , wherein the second bridge overlaps with the third branch portion.

11 . The display device of claim 1 , wherein:
the first branch portion is extended from one end area of the first trunk portion to another end area of the first trunk portion; and the first trunk portion and the first branch portion define an opening.

12 . The display device of claim 11 , further comprising a dummy electrode disposed in the opening.

13 . The display device of claim 1 , wherein:
the second sensor part comprises two or more third branch portions; one of the two or more third branch portions is extended from one end area of the second trunk portion, and another of the two or more third branch portions is extended from another end area of the second trunk portion; and the one of the two or more third branch portion is spaced apart from the another of the two or more third branch portion by a predetermined distance.

14 . The display device of claim 13 , wherein the first sensor part further comprises a bridge portion extended from the first branch portion to the second branch portion, and the bridge portion is disposed between the one of the two or more third branch portion and the another of the two or more third branch portion.

15 . The display device of claim 1 , further comprising a window unit, wherein:
the sensing unit is disposed between the display panel and the window unit; and a distance between a top surface of the sensing unit and a top surface of the window unit is 0.2 mm or less.

16 . The display device of claim 15 , wherein at least a partial area of the display device is bendable.

17 . A display device comprising:
a display panel; and a sensing unit disposed on the display panel and comprising:
a first sensing electrode extending in a first direction; and
a second sensing electrode extending in a second direction different from the first direction,
wherein: the first sensing electrode and the second sensing electrode are insulated from each other; the first sensing electrode comprises: a first extension extending in the first direction; a plurality of first diagonal portions extended from the first extension in an intersection area of the first and second sensing electrodes and extending in a direction different from the first and second directions; a plurality of second diagonal portions spaced apart from the plurality of first diagonal portions and electrically connected to the plurality of first diagonal portions; the second sensing electrode comprises:
a second extension extending in the second direction; and
a plurality of third diagonal portions extended from the second extension in the intersection area of the first and second sensing electrodes, and
each of the plurality of third diagonal portions is disposed between a corresponding one of the plurality of first diagonal portions and a corresponding one of the plurality of second diagonal portions.

18 . The display device of claim 17 , wherein:
one of the first extension and the second extension comprises:
a first portion disposed on a layer different from a layer on which the plurality of first diagonal portions, the plurality of second diagonal portions, and the plurality of third diagonal portions are disposed;
a second portion and a third portion, the second portion and the third portion are spaced apart from each other and are disposed on a same layer as the plurality of first diagonal portions, the plurality of second diagonal portions, and the plurality of third diagonal portions, and
the first portion connects the second portion and the third portion to each other.

19 . A display device comprising:
a display panel; and a sensing unit disposed on the display panel and comprising a first sensor part and a second sensor part, wherein: the second sensor part comprises: a second trunk portion extending in a second direction; and a third branch portion extended from the second trunk portion; the first sensor part comprises: a first trunk portion extending in a first direction intersecting the second direction; a first branch portion extended from the first trunk portion and extending in a direction different from the first direction and the second direction; and a second branch portion electrically connected to the first trunk portion; and the third branch portion is disposed between the first branch portion and the second branch portion.

Assignees

• Samsung Display Co Ltd

Inventors

• Na Hyunjae
• Ku Jaseung
• Kim Kwan-Ho
• Bang Gyeongnam
• Son Hoseok
• Cho Sungyeon

Classifications

• H10K59/40 Primary

  OLEDs integrated with touch screens · CPC title

• H10K59/124

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

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10K50/805

  Electrodes · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title