Electronic device

Patent metadata

Field	Value
Publication number	US-2020160020-A1
Application number	US-201916563145-A
Country	US
Kind code	A1
Filing date	Sep 6, 2019
Priority date	Nov 16, 2018
Publication date	May 21, 2020
Grant date	—

Abstract

An electronic device includes: a display module; a first adhesive member having a multi-layered structure and having a first adhesive surface attached on a back surface of the display module; and a sensing module including a sensing area, the sensing area being attached on a second adhesive surface facing the first adhesive surface of the first adhesive member.

First claim

What is claimed is:

1 . An electronic device comprising:
a display module; a first adhesive member having a multi-layered structure and having a first adhesive surface attached on a back surface of the display module; and a sensing module comprising a sensing area, the sensing area being attached on a second adhesive surface facing the first adhesive surface of the first adhesive member.

2 . The electronic device of claim 1 , wherein the first adhesive member comprises:
a base layer; a first adhesive layer on a first surface of the base layer; and a second adhesive layer on a second surface facing the first surface of the base layer.

3 . The electronic device of claim 2 , wherein each of the first adhesive layer and the second adhesive layer comprises any one selected from an adhesive resin, a pressure sensitive adhesive film, and an optical transparent adhesive film.

4 . The electronic device of claim 3 , wherein each of the first adhesive layer and the second adhesive layer has an adhesive force of 300 gf/in or greater.

5 . The electronic device of claim 2 , wherein the base layer comprises a polymer material.

6 . The electronic device of claim 5 , wherein the base layer comprises a polyester material or a polyimide material.

7 . The electronic device of claim 5 , wherein the base layer has a modulus in a range of about 150 MPa to about 10 GPa.

8 . The electronic device of claim 1 , wherein the first adhesive member has a thickness in a range of about 5 μm to about 200 μm.

9 . The electronic device of claim 1 , further comprising a second adhesive member comprising a photoinitiator, the second adhesive member being attached to a side surface of the sensing module, a side surface of the first adhesive member, and the back surface of the display module.

10 . The electronic device of claim 9 , wherein the photoinitiator is configured to be activated by ultraviolet light.

11 . The electronic device of claim 1 , wherein:
the sensing module and the back surface of the display module are spaced apart from each other at a set interval, and a space between the sensing module and the back surface of the display module that are spaced apart from each other is at least partially filled with the first adhesive member.

12 . The electronic device of claim 11 , wherein the sensing module comprises a fingerprint sensing sensor configured to utilize an ultrasonic wave.

13 . The electronic device of claim 1 , wherein:
the display module is divided into a display area configured to display an image, and a peripheral area adjacent to the display area on a plane, and the sensing module overlaps the display area on the plane.

14 . The electronic device of claim 1 , further comprising a circuit substrate electrically coupled to the display module and below the back surface of the display module,
wherein the circuit substrate has an opening overlapping the sensing module.

15 . The electronic device of claim 1 , wherein the display module comprises:
a display panel comprising a plurality of pixels configured to display an image; and a cover panel on a back surface of the display panel and having an opening.

16 . The electronic device of claim 15 , wherein the first adhesive member is attached to the back surface of the display panel exposed by the opening.

17 . The electronic device of claim 15 , wherein the display panel comprises:
a planar portion, and a protrusion portion that protrudes from the planar portion and is bent relative to the planar portion, and a portion of the cover panel is between the planar portion and the protrusion portion.

18 . The electronic device of claim 15 , wherein the display panel comprises:
a base substrate; a display element layer on the base substrate; an encapsulation layer on the display element layer; and an input sensing unit on the encapsulation layer.

19 . An electronic device comprising:
a display module comprising a front surface having a display area and a peripheral area adjacent to the display area, and a back surface facing the front surface; a first adhesive member comprising a base layer, a first adhesive layer on a first surface of the base layer and attached to the back surface of the display module, and a second adhesive layer on a second surface facing the first surface of the base layer; a sensing module comprising a sensing area that overlaps the display area and is configured to ultrasonically sense a fingerprint, wherein the second adhesive layer of the first adhesive member is attached to the sensing area; and a second adhesive member comprising a photoinitiator, the second adhesive member being attached to a portion of the sensing module and the back surface of the display module.

20 . The electronic device of claim 19 , wherein:
the sensing module and the back surface of the display module are spaced apart from each other at a set interval, and a space between the sensing module and the back surface of the display module that are spaced apart from each other is at least partially filled with the first adhesive member.

Assignees

• Samsung Display Co Ltd

Inventors

• Cho Yewon
• Lee Dongeun
• Jeong Dongjin

Classifications

• G06F1/1601

  Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays (constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64) · CPC title

• G06F3/044

  by capacitive means · CPC title

• G06K9/0002 Primary

  Physics · mapped topic

• H10F39/806

  Optical elements or arrangements associated with the image sensors · CPC title

• H10F39/198 Primary

  Contact-type image sensors [CIS] · CPC title