IP Library Granted Patent US 12681356
Granted Patent B2
US 12681356 · App. 18/427,827 · Granted Jul 14, 2026

Display device

Inventors: Wei-Sung Cheng (Hsinchu, TW); Ming-Huan Yang (Hsinchu, TW); Chen Chu Tsai (Hsinchu, TW)
Assignee: E Ink Holdings Inc.
G02F1/16753G02F1/167
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Quick Facts
Patent No.
US 12681356
App. No.
18/427,827
Granted
Jul 14, 2026
Kind
B2
Abstract

A display device includes a driving substrate, a display medium layer, a conductive material, a protection assembly and a conductive terminal. The driving substrate includes a first portion, a second portion and a bent portion connecting the first portion and the second portion. The display medium layer is disposed on the first portion of the driving substrate. The conductive material is disposed on the second portion of the driving substrate. The protection assembly is disposed on the first portion of the driving substrate and located on the display medium layer. The protection assembly includes a film and a transparent conductive layer. The transparent conductive layer is disposed on the film and faces the display medium layer. The conductive terminal is connected to the protection assembly, and electrically connected to the transparent conductive layer and the conductive material.

Claims (21)

1 . A display device, comprising:

a driving substrate, comprising a first portion, a second portion and a bent portion connecting the first portion and the second portion;

a display medium layer disposed on the first portion of the driving substrate;

a conductive material disposed on the second portion of the driving substrate;

a protection assembly disposed on the first portion of the driving substrate and located on the display medium layer, and the protection assembly comprising a film and a transparent conductive layer disposed on the film and facing the display medium layer;

a conductive terminal connected to the protection assembly and electrically connected to the transparent conductive layer and the conductive material; and

a protective layer, which is directly disposed on the bent portion and the second portion of the driving substrate, and extends to the first portion of the driving substrate to seal a sidewall of the display medium layer.

2 . The display device of claim 1 , further comprising:

a support plate having a first surface and a second surface opposite to each other and a side surface connecting the first surface and the second surface, wherein the first portion of the driving substrate, the display medium layer and the protection assembly are located on the first surface, and the second portion of the driving substrate and the conductive material are located on the second surface, and the bent portion of the driving substrate is located next to the side surface.

3 . The display device of claim 2 , further comprising:

a first adhesive layer disposed between the first surface of the support plate and the first portion of the driving substrate, wherein the first portion of the driving substrate is fixed on the first surface of the support plate through the first adhesive layer; and

a second adhesive layer disposed between the second surface of the support plate and the second portion of the driving substrate, wherein the second portion of the driving substrate is fixed on the second surface of the support plate through the second adhesive layer.

4 . The display device of claim 1 , wherein the protection assembly and the conductive terminal are integrally formed and have the same structure, and the conductive terminal is disposed on the bent portion and the second portion of the driving substrate, and the protective layer is located between the conductive terminal and the driving substrate.

5 . The display device of claim 4 , wherein the conductive terminal comprises a plurality of hollows, exposing the protective layer at the bent portion, and there is an air gap between the conductive terminal and the protective layer.

6 . The display device of claim 4 , further comprising:

a stress release layer disposed on the conductive terminal located at the bent portion of the driving substrate, wherein the stress release layer is located between the conductive terminal and the protective layer, and there is an air gap between the stress release layer and the protective layer.

7 . The display device of claim 1 , wherein the conductive terminal is disposed on the bent portion and the second portion of the driving substrate, and partially extends to a region between the protective layer and the transparent conductive layer of the protection assembly, and the protective layer directly contacts the conductive terminal and the driving substrate, and is located between the conductive terminal and the driving substrate.

8 . The display device of claim 1 , wherein the film of the protection assembly has a conductive hole electrically connected to the transparent conductive layer, and the conductive terminal directly connects the conductive hole and the conductive material.

9 . The display device of claim 1 , further comprising:

a flexible circuit board disposed on the second portion of the driving substrate; and

a cover plate, which is disposed on the film of the protection assembly.