Electronic apparatus

Patent metadata

Field	Value
Publication number	US-12309926-B2
Application number	US-202318400347-A
Country	US
Kind code	B2
Filing date	Dec 29, 2023
Priority date	Feb 26, 2021
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

An electronic apparatus includes an electronic panel including a plurality of pads, a circuit board including a plurality of leads, and a conductive adhesive member configured to electrically connect the circuit board and the electronic panel. The plurality of pads include a plurality of pixel pads, an arrangement pad, and a resistance measurement pad disposed between the arrangement pad and the pixels pads and insulated from the pixel pads. The plurality of leads include a plurality of pixel leads, an arrangement lead, and a resistance measurement lead disposed between the pixel leads and the arrangement lead and insulated from the pixel leads. The resistance measurement lead includes a plurality of resistance measurement leads disposed between the arrangement lead and the pixel leads and electrically connected with the resistance measurement pad, and a dummy lead spaced apart from the plurality of resistance measurement leads in a plan view.

First claim

What is claimed is:

1. An electronic apparatus comprising:
an electronic panel comprising a base substrate, a plurality of pixels on the base substrate, and a plurality of pads in an adhesive area, the plurality of pads is spaced apart from the plurality of pixels;
a circuit board comprising a plurality of leads; and
wherein the plurality of pads comprises a plurality of pixel pads electrically connected to the plurality of pixels, an arrangement pad spaced apart from the plurality of pixel pads, and a resistance measurement pad disposed between the arrangement pad and the plurality of pixels pads and insulated from the plurality of pixel pads, and
wherein the plurality of leads comprises a plurality of resistance measurement leads electrically connected to the resistance measurement pad and a dummy lead spaced apart from each of the plurality of resistance measurement leads in the plan view.

2. The electronic apparatus according to claim 1 , wherein:
the resistance measurement lead comprises first, second, and third leads arranged along a direction from the arrangement lead towards the pixel pads; and
the third lead is connected to a plurality of terminals.

3. The electronic apparatus according to claim 2 , wherein the dummy lead is disposed between the first lead and the second lead.

4. The electronic apparatus according to claim 2 , wherein the dummy lead is disposed between the first lead and the arrangement lead.

5. The electronic apparatus according to claim 2 , wherein the resistance measurement pad comprises:
a first pad connected with the first lead;
a second pad connected with the second lead; and
a third pad connected with the third lead,
wherein the first to third pads are connected with each other.

6. The electronic apparatus according to claim 5 , wherein the resistance measurement pad further comprises a dummy pad disposed between the first pad and the second pad and spaced apart from the first to third pads in the plan view,
wherein the dummy pad overlaps the dummy lead in the plan view.

7. The electronic apparatus according to claim 6 , wherein the dummy pad and the dummy lead are connected with each other through a conductive adhesive member.

8. The electronic apparatus according to claim 6 , wherein the plurality of leads comprises a plurality of pixel leads overlapping the plurality of pixel pads in the plan view and connected with each other through a conductive adhesive member.

9. The electronic apparatus according to claim 8 , wherein a gap between the dummy pad and the dummy lead in a thickness direction of the electronic apparatus is larger than a gap between the pixel lead and the pixel pad in the thickness direction of the electronic apparatus.

10. The electronic apparatus according to claim 1 , wherein the plurality of leads further comprises an arrangement lead overlapping the arrangement pad in the plan view, and
wherein the resistance measurement lead disposed between the plurality of pixel leads and the arrangement lead and insulated from the plurality of pixel leads.

11. The electronic apparatus according to claim 10 , wherein the dummy lead comprises a first dummy lead and a second dummy lead spaced apart from each other with the arrangement lead disposed therebetween.

12. The electronic apparatus according to claim 11 , wherein the first dummy lead includes a plurality of first dummy leads and the second dummy lead includes a plurality of second dummy leads,
wherein at least one of the plurality of first dummy leads has a shape that is different from a shape of another first dummy lead of the plurality of first dummy leads, and
wherein at least one of the plurality of second dummy leads has a shape that is different from a shape of another second dummy lead of the plurality of second dummy leads.

13. The electronic apparatus according to claim 11 , wherein:
the plurality of leads further comprises driving evaluation leads spaced apart from the arrangement lead and configured to receive an electrical signal; and
the first dummy lead and the second dummy lead are disposed in an area surrounded by the resistance measurement lead, the arrangement lead, and the driving evaluation leads.

14. An electronic apparatus comprising:
an electronic panel comprising a plurality of pixels and a plurality of pads spaced apart from the plurality of pixels;
a circuit board comprising a plurality of leads; and
a conductive adhesive member configured to electrically connect the circuit board and the electronic panel,
wherein the plurality of pads comprises:
pixel pads electrically connected to the pixels and the circuit board;
an arrangement pad electrically insulated from the pixel pads;
resistance measurement pads insulated from the pixel pads, and electrically connected to the circuit board; and
a dummy pad disposed between the arrangement pad and the pixel pads and spaced apart from the resistance measurement pads in the plan view.

15. The electronic apparatus according to claim 14 , wherein:
the resistance measurement pads comprise first, second, and third pads arranged along a direction from the arrangement pad toward the pixel pads; and
the dummy pad is disposed between the first pad and the second pad.

16. The electronic apparatus according to claim 15 , wherein:
the first to third pads are connected with each other; and
the dummy pad is spaced apart from the first to third pads.

17. The electronic apparatus according to claim 15 , wherein the dummy pad is disposed between the first pad and the arrangement pad.

18. The electronic apparatus according to claim 15 , wherein the dummy pad comprises:
a first dummy pad disposed among the arrangement pad, the first pad, and the plurality of pixels; and
a second dummy pad spaced apart from the first dummy pad with the arrangement pad disposed therebetween.

19. The electronic apparatus according to claim 15 , wherein the plurality of leads comprises:
first to third leads separately disposed from each other and respectively connected to the first to third pads; and
a dummy lead overlapping the dummy pad in the plan view.

20. The electronic apparatus according to claim 19 , wherein
at least one of the base film or the base substrate includes a deformation that is positioned in an area in which the dummy lead or the dummy pad is disposed; and
the third lead is connected to a plurality of terminals.

Assignees

• Samsung Display Co Ltd

Inventors

• Oh Jaejin
• Kwack Junho
• Park Dongjin
• Lee Kyung-Mok
• Lee Dong-Youb

Classifications

• H10P74/273 Primary

  Interconnections for measuring or testing, e.g. probe pads · CPC title

• H10D86/441

  Interconnections, e.g. scanning lines · CPC title

• H10D86/60

  wherein the TFTs are in active matrices · CPC title

• H05K2201/10128

  Display · CPC title

• H05K1/0268

  for electrical inspection or testing · CPC title