IP Library › Granted Patent US 12,446,415
Granted Patent B2
US 12,446,415 · App. 17/051,980 · Granted Oct 14, 2025

Display panel and display device

Inventor: Yantao Lu (Wuhan, CN)
Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
H10K59/131
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Quick Facts
Patent No.
US 12,446,415
App. No.
17/051,980
Granted
Oct 14, 2025
Kind
B2
Abstract

The present application discloses a display panel and a display device. The display panel includes a display substrate and a flexible circuit board, and further including: a chip disposed on the display substrate on a side of a display area; bonding pads disposed on the display substrate and located on at least one of left and right sides of the chip; and virtual bonding pads disposed on the display substrate on a side of the bonding pads.

Claims (11)

1. A display panel, comprising a display substrate and a flexible circuit board, and further comprising: a chip disposed on the display substrate on a side of a display area; bonding pads disposed on the display substrate and located on at least one of left and right sides of the chip; dummy bonding pads disposed on the display substrate on a side of the bonding pads; gold fingers disposed on the flexible circuit board and correspondingly connected to surfaces of the bonding pads; and dummy gold fingers disposed on the flexible circuit board on a side of the gold fingers and correspondingly connected to a surface of the dummy bonding pads, wherein an adhesive film is disposed between the dummy bonding pads and the dummy gold fingers, the bonding pads and the gold fingers being laminated through a conductive adhesive film, one of the dummy bonding pads is in close proximity to one of the bonding pads, with only a gap therebetween, wherein the gap does not include any electrical components or non-electrically active components, wherein a width and a length of each of the bonding pads and the dummy bonding pads are 4 mm and 9 mm, respectively, and a width and a length of the gold fingers and the dummy gold fingers are 4 mm and 9 mm, respectively, wherein a distance between adjacent ones of the bonding pads is 0.4 mm, and a distance between adjacent ones of the gold fingers is 0.4 mm.

2. The display panel according to claim 1 , wherein the bonding pads are connected to the chip through leads disposed therebetween.

3. The display panel according to claim 1 , wherein no lead is disposed between the dummy bonding pads and the chip.

4. The display panel according to claim 1 , further comprising:

a cathode lead connecting the chip to each column of a plurality of columns of pixels in the display area; and

an anode lead connecting the chip to each row of a plurality of rows of the pixels in the display area.

5. The display panel according to claim 1 , wherein a number of the gold fingers is the same as a number of the bonding pads, the number of the bonding pads is more than two.

6. The display panel according to claim 1 , wherein each of the bonding pads has a rectangular shape.

7. The display panel according to claim 1 , wherein the bonding pads are arranged in a direction perpendicular to a lengthwise direction of the bonding pads.

8. The display panel according to claim 1 , wherein a number of the dummy gold fingers is the same as a number of the dummy bonding pads, the number of the dummy bonding pads is more than two, the dummy bonding pads are isolated from each other, and the dummy gold fingers are isolated from each other.

9. The display panel according to claim 1 , wherein the adhesive film is non-conductive.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 11, 2020
From: LU, YANTAO
To: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Reel/Frame 054341/0561 →
Priority Claims (1)
CN 202010802066.7 · Aug 11, 2020 · national
Continuity (1)
Related Publication 20230098663A1 · Mar 30, 2023
References Cited (47)
US 8877630B1 · Cheng · 2014 [cited by examiner]
US 20060078021A1 · Fujihara · 2006 [cited by examiner]
US 20110032687A1 · Song · 2011 [cited by examiner]
US 20120256199A1 · Lee · 2012 [cited by examiner]
US 20150103500A1 · Bae · 2015 [cited by examiner]
US 20150332644A1 · Fujikawa · 2015 [cited by examiner]
US 20170263689A1 · Nishikawa · 2017 [cited by applicant]
US 20180063962A1 · Lee · 2018 [cited by examiner]
US 20190059156A1 · Kwon · 2019 [cited by examiner]
US 20200135062A1 · Yan · 2020 [cited by applicant]
US 20200135821A1 · Seo · 2020 [cited by examiner]
US 20200166814A1 · Guan · 2020 [cited by examiner]
US 20200210041A1 · Liu · 2020 [cited by applicant]
US 20210109616A1 · Park · 2021 [cited by examiner]
US 20210351262A1 · Kim · 2021 [cited by examiner]
CN 206742520U · 2017 [cited by applicant]
CN 109683365A · 2019 [cited by applicant]
CN 208705626U · 2019 [cited by applicant]
CN 109785750A · 2019 [cited by applicant]
CN 109994042A · 2019 [cited by applicant]
CN 110018598A · 2019 [cited by applicant]
CN 110062524A · 2019 [cited by applicant]
CN 110286535A · 2019 [cited by applicant]
CN 110579917A · 2019 [cited by applicant]
CN 110660319A · 2020 [cited by applicant]
CN 110687728A · 2020 [cited by applicant]
CN 209911692U · 2020 [cited by applicant]
CN 210168287U · 2020 [cited by applicant]
CN 210223406U · 2020 [cited by applicant]
CN 111025793A · 2020 [cited by applicant]
JP 2012141558A · 2012 [cited by applicant]
JP 2015204458A · 2015 [cited by applicant]
JP 2016075896A · 2016 [cited by applicant]
JP 2019008106A · 2019 [cited by applicant]
JP 2020003777A · 2020 [cited by applicant]
WO 2020032340A1 · 2020 [cited by applicant]
International Search Report in International application No. PCT/CN2020/110767, mailed on Apr. 28, 2021. [cited by applicant]
Written Opinion of the International Searching Authority in International application No. PCT/CN2020/110767, mailed on Apr. 28, 2021. [cited by applicant]
Chinese Office Action issued in corresponding Chinese Patent Application No. 202010802068.7 dated Mar. 22, 2021, pp. 1-9. [cited by applicant]
Chinese Office Action issued in corresponding Chinese Patent Application No. 202010802068.7 dated Aug. 27, 2021, pp. 1-6. [cited by applicant]
Chinese Decision of Rejection issued in corresponding Chinese Patent Application No. 202010802068.7 dated Dec. 30, 2021, pp. 1-6. [cited by applicant]
Japanese Office Action issued in corresponding Japanese Patent Application No. 2021-520592 dated Dec. 5, 2022, pp. 1-4. [cited by applicant]
Japanese Office Action issued in corresponding Japanese Patent Application No. 2021-520592 dated May 8, 2023, pp. 1-4. [cited by applicant]
Korean Office Action issued in corresponding Korean Patent Application No. 10-2021-7030900 dated Dec. 12, 2022, pp. 1-6. [cited by applicant]
Japanese Office Action issued in corresponding Japanese Patent Application No. 2021-520592 dated Oct. 30, 2023, pp. 1-5. [cited by applicant]
Japanese Office Action issued in corresponding Japanese Patent Application No. 2021-520592 dated May 24, 2024, pp. 1-3. [cited by applicant]
European Office Action issued in corresponding European Patent Application No. 20885393.7 dated Jul. 30, 2024, pp. 1-7. [cited by applicant]