IP Library › Granted Patent US 12666555
Granted Patent B2
US 12666555 · App. 18/169,189 · Granted Jun 23, 2026

Display device and manufacturing method of the same

Inventors: Wei-Sung Cheng (Hsinchu, TW); Ming-Huan Yang (Hsinchu, TW)
Assignee: E Ink Holdings Inc.
H05K5/062B32B7/02B32B7/12B32B37/24H05K5/0018B32B2037/243B32B2457/208G06F3/0412G06F2203/04103
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Quick Facts
Patent No.
US 12666555
App. No.
18/169,189
Granted
Jun 23, 2026
Kind
B2
Abstract

A display device includes a display area and a periphery area. The display device includes a display panel and a touch module located on the display panel. The display panel includes a driving substrate, a display medium layer located on the driving substrate, a top electrode located on the display medium layer, and a sealant surrounding the display medium layer and the top electrode. The sealant includes a first section and at least one second section connected with the first section. The first section is located between the top electrode and the driving substrate. A thickness of the second section is greater than a thickness of the first section. The touch module includes a bonding region located in the periphery region. An orthogonal projection of the bonding region on the driving substrate overlaps an orthogonal projection of the first section on the driving substrate.

Claims (17)

1 . A display device having a display region and a non-display region, wherein the display device comprises:

a display panel, comprising;

a driving substrate;

a display medium layer located on the driving substrate;

a top electrode located on the display medium layer; and

a sealant surrounding the display medium layer and the top electrode, wherein the sealant comprises a first section and at least one second section connected with the first section, the first section of the sealant is located between the top electrode and the driving substrate, and a thickness of the second section is greater than a thickness of the first section; and

a touch module disposed on the display panel, wherein the touch module comprises a bonding region located in the non-display region, and an orthogonal projection of the bonding region onto a top surface of the driving substrate overlaps an orthogonal projection of the first section of the sealant onto the top surface of the driving substrate.

2 . The display device of claim 1 , wherein the orthogonal projection of the bonding region onto the top surface of the driving substrate is away from an orthogonal projection of the second section of the sealant onto the top surface of the driving substrate.

3 . The display device of claim 1 , wherein the thickness of the first section equals a distance between a bottom surface of the top electrode facing the driving substrate and the top surface of the driving substrate facing the top electrode.

4 . The display device of claim 1 , wherein the orthogonal projection of the first section of the sealant onto the top surface of the driving substrate is located within an orthogonal projection of the top electrode onto the top surface of the driving substrate.

5 . The display device of claim 1 , wherein the thickness of the second section is greater than a sum of a thickness of the display medium layer and a thickness of the top electrode.

6 . The display device of claim 1 , wherein the orthogonal projection of the second section of the sealant onto the top surface of the driving substrate is located partially outside the orthogonal projection of the top electrode onto the top surface of the driving substrate.

7 . The display device of claim 1 , wherein a number of the second section is plural, and the second sections are located at two sides of the first section.

8 . The display device of claim 1 , further comprising a bending region, wherein the sealant further comprises a third section located in the bending region, and the third section is located between the top electrode and the driving substrate.

9 . The display device of claim 8 , wherein an orthogonal projection of the third section of the sealant onto the top surface of the driving substrate is located within the orthogonal projection of the top electrode onto the top surface of the driving substrate.

10 . The display device of claim 8 , wherein the sealant further comprises a fourth section away from the bending region, and a thickness of the fourth section is greater than a thickness of the third section.

11 . The display device of claim 10 , wherein an orthogonal projection of the fourth section of the sealant onto the top surface of the driving substrate is located partially outside the orthogonal projection of the top electrode onto the top surface of the driving substrate.