Display device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-2024106923-A1
Application number	US-202318220591-A
Country	US
Kind code	A1
Filing date	Jul 11, 2023
Priority date	Sep 23, 2022
Publication date	Mar 28, 2024
Grant date	—

Abstract

A display device includes: a display panel and a cover panel disposed under the display panel, including at least one layer for protecting the display panel, and provided with a through-hole and a seating groove defined therein to allow an electronic module to be disposed. The through-hole extends along a thickness direction, the seating groove is connected to an t end of the through-hole and overlaps the through-hole in a plan view, the seating groove has a width greater than a diameter of the through-hole, the seating groove is defined under the through-hole, and the seating groove has a depth from about 10 micrometers to about 100 micrometers.

First claim

What is claimed is:

1 . A display device comprising:
a display panel; and a cover panel disposed under the display panel, comprising at least one layer for protecting the display panel, and provided with a through-hole and a seating groove defined therein to allow an electronic module to be disposed, wherein the through-hole extends along a thickness direction, the seating groove is connected to a first end of the through-hole and overlaps the through-hole in a plan view, the seating groove has a width greater than a diameter of the through-hole, the seating groove is defined under the through-hole, and the seating groove has a depth from about 10 micrometers to about 100 micrometers.

2 . The display device of claim 1 , wherein the electronic module comprises:
a body portion; and a protruding portion protruding from the body portion along the thickness direction and which receives an external signal, wherein the protruding portion is inserted into the through-hole.

3 . The display device of claim 2 , wherein an upper surface of the protruding portion is disposed spaced apart from a second end of the through-hole adjacent to the display panel and opposite to the first end by a predetermined distance.

4 . The display device of claim 2 , wherein the body portion is disposed in the seating groove, and a side surface of the body portion is disposed spaced apart from a inner side surface of the cover panel defining the seating groove.

5 . The display device of claim 2 , wherein a portion of an upper surface of the body portion is in contact with a seating surface defined on a lower surface of the cover panel, which defines the seating groove.

6 . The display device of claim 1 , wherein the electronic module comprises at least one of a camera module, a fingerprint sensor, and a proximity sensor.

7 . The display device of claim 1 , wherein a center of the through-hole and a center of the seating groove are aligned with each other on a straight line extended along the thickness direction.

8 . The display device of claim 1 , wherein a minimum distance from a side surface of the cover panel defining the through-hole to a side surface of the cover panel defining the seating groove is within a range from about 0.5 millimeters (mm) to about 5 mm.

9 . The display device of claim 1 , wherein the display panel comprises a signal transmission area corresponding to the through-hole and an active area through which an image is displayed, and the signal transmission area has a pixel resolution lower than a pixel resolution of the active area.

10 . The display device of claim 1 , wherein the cover panel comprises:
a light blocking layer disposed under the display panel and which blocks a light; and a cushion layer disposed adjacent to the light blocking layer and which protects the display panel.

11 . The display device of claim 1 , wherein a center of the electronic module and a center of the through-hole are aligned with each other on a straight line extended along the thickness direction.

12 . A method of manufacturing a display device, comprising:
forming a through-hole penetrating a cover panel disposed under a display panel; and forming a seating groove connected to an end of the through-hole and overlapping the through-hole in the cover panel in a plan view, wherein the cover panel is disposed under the display panel, comprises at least one layer for protecting the display panel, and is provided with the through-hole and the seating groove defined therein to allow an electronic module to be disposed, the through-hole extends along a thickness direction, the seating groove has a width greater than a diameter of the through-hole, and the seating groove has a depth from about 10 micrometers to about 100 micrometers.

13 . The method of claim 12 , wherein the forming of the through-hole comprises:
forming a photoresist layer under the display panel; exposing the photoresist layer using a mask in which a transmissive area and a blocking area surrounding the transmissive area are defined; developing the photoresist layer to form a photoresist pattern corresponding to the transmissive area; forming a portion of the at least one layer of the cover panel on the photoresist pattern; and removing the photoresist pattern and the portion of the at least one layer of the cover panel formed on the photoresist pattern, wherein the transmissive area corresponds to the through-hole and is configured to transmit a light therethrough, and the blocking area is configured to block the light.

14 . The method of claim 12 , wherein the forming of the seating groove comprises:
etching an area of the at least one layer of the cover panel, which corresponds to the seating groove.

15 . The method of claim 12 , wherein the cover panel has a plurality of layers, inner side surfaces of the plurality of layers of the cover panel defining the through-hole are aligned with each other, and inner side surfaces of the plurality of layers of the cover panel defining the seating groove are aligned with each other.

16 . The method of claim 13 , wherein the photoresist layer is hardened when exposed to the light.

17 . The method of claim 13 , wherein the photoresist pattern has a shape in which a width of a second surface disposed far from the display panel is larger than a width of a first surface disposed close to the display panel.

18 . The method of claim 14 , wherein the etching of the area corresponding to the seating groove is performed using a laser beam.

19 . The method of claim 18 , wherein the laser beam has a wavelength from about 190 nanometers (nm) to about 10600 nm.

20 . The method of claim 18 , wherein the laser beam has a pulse period equal to or smaller than about 1 microsecond (μs).

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Byunghoon
• You Junwoo
• Kim Youngdo
• Seo Jeongweon
• Lee Junyoung

Classifications

• H10K59/872

  Containers · CPC title

• H04M1/0264 Primary

  for a camera module assembly · CPC title

• H04M1/0266 Primary

  for a display module assembly · CPC title