Display apparatus

Patent metadata

Field	Value
Publication number	US-2021103354-A1
Application number	US-202016938217-A
Country	US
Kind code	A1
Filing date	Jul 24, 2020
Priority date	Oct 8, 2019
Publication date	Apr 8, 2021
Grant date	—

Abstract

A display apparatus includes a display panel configured to display an image and a touch antenna array disposed on the display panel. The touch antenna array may include a touch electrode, a touch wiring electrically connected to the touch electrode, an antenna electrode including a plurality of antenna elements, a feeder electrically connected to the antenna electrode, and a shielding electrode disposed between the touch wiring and the feeder.

First claim

What is claimed is:

1 . A display apparatus comprising:
a display panel configured to display an image; and a touch antenna array disposed on the display panel, wherein the touch antenna array includes:
a touch electrode;
a touch wiring electrically connected to the touch electrode;
an antenna electrode comprising a plurality of antenna elements;
a feeder electrically connected to the antenna electrode; and
a shielding electrode disposed between the touch wiring and the feeder.

2 . The display apparatus of claim 1 , wherein the display apparatus includes a display area in which the image is displayed and a non-display area adjacent to and contacting the display area, and
wherein the antenna electrode is disposed in the display area adjacent to the non-display area.

3 . The display apparatus of claim 1 , wherein the touch antenna array further includes a ground wiring spaced apart from the touch wiring, a ground voltage or a fixed voltage being applied to the ground wiring, and the shielding electrode is electrically connected to the ground wiring.

4 . The display apparatus of claim 3 , wherein the touch wiring, the ground wiring, the feeder, and the shielding electrode are disposed in a non-display area of the display apparatus.

5 . The display apparatus of claim 1 , wherein the antenna electrode is spaced apart from the touch electrode when viewed in a plan view and does not overlap the touch electrode.

6 . The display apparatus of claim 1 , wherein the touch electrode and the antenna electrode are disposed on a same layer.

7 . The display apparatus of claim 1 , further comprising:
a first insulating layer disposed between the touch wiring and the shielding electrode; and a second insulating layer disposed between the shielding electrode and the feeder.

8 . The display apparatus of claim 1 , wherein the feeder and the antenna electrode contact each other through a contact hole formed in an insulating layer.

9 . The display apparatus of claim 1 , wherein the touch antenna array further includes a ground wiring spaced apart from the touch wiring, a ground voltage or a fixed voltage being applied to the ground wiring, and the shielding electrode extends from the ground wiring.

10 . The display apparatus of claim 1 , wherein the touch antenna array further includes a ground wiring spaced apart from the touch wiring, a ground voltage or a fixed voltage being applied to the ground wiring, and the shielding electrode and the ground wiring make contact with each other through a contact hole formed in an insulating layer.

11 . The display apparatus of claim 1 , wherein the touch antenna array further includes a ground wiring spaced apart from the touch wiring, a ground voltage or a fixed voltage being applied to the ground wiring, and the ground wiring and the touch wiring are disposed on different layers.

12 . The display apparatus of claim 1 , wherein the antenna elements of the antenna electrode respectively have a repeating pattern shape of conductive material, and wherein the touch electrode includes a plurality of first touch electrodes and a plurality of second touch electrodes, each having a pattern shape of conductive material identical to the pattern shape of the antenna electrode.

13 . The display apparatus of claim 12 , wherein the pattern shape of the antenna electrode includes a lattice pattern or a mesh pattern.

14 . The display apparatus of claim 1 , wherein the display panel is an organic light emitting diode display panel, and
wherein a first power supply voltage, a second power supply voltage, or an initialization voltage for driving the organic light emitting diode display panel is applied to the shielding electrode.

15 . The display apparatus of claim 1 , further comprising:
a base film disposed between the touch electrode and the antenna electrode; and an adhesive layer adhered to the base film.

16 . The display apparatus of claim 1 , wherein the display panel includes:
a substrate; a thin film transistor layer disposed on the substrate and including a thin film transistor; a pixel defining layer disposed on the thin film transistor layer and configured to define an opening; and a light emitting structure disposed in the opening of the pixel defining layer, wherein an emission area is defined to correspond to the opening of the pixel defining layer, and wherein the antenna electrode has a pattern shape including an opening that does not overlap the emission area.

17 . The display apparatus of claim 16 , wherein conductive material forming the touch electrode does not overlap the emission area.

18 . The display apparatus of claim 1 , wherein the display apparatus includes a display area in which the image is displayed and a non-display area contacting the display area, and
wherein the touch wiring is disposed in the non-display area, and the antenna electrode and the touch electrode are disposed in the display area.

19 . The display apparatus of claim 1 , wherein a connection portion between a non-display area of the display apparatus and the display area is folded so that the non-display area is located on a rear side of the display area.

20 . The display apparatus of claim 19 , wherein the display area of the display apparatus includes a main display area and an edge display area connected to the main display area,
wherein the non-display area contacts the edge display area, and the edge display area has a curved surface bent in a direction perpendicular to the main display area, and wherein the antenna electrode is disposed in the edge display area.

21 . A display apparatus comprising:
a display panel including a display area in which an image is displayed and a non-display area contacting one side of the display area; a touch antenna array disposed on the display panel; and a touch antenna driver disposed on the non-display area of the display panel, wherein the touch antenna array includes:
a touch electrode disposed on the display area; and
an antenna electrode disposed on the display area and formed on a same layer as the touch electrode, the antenna electrode including a plurality of antenna elements, and
wherein the touch antenna driver transmits an electrical signal to the touch electrode and the antenna electrode and/or receives an electrical signal from the touch electrode and the antenna electrode.

22 . A display apparatus comprising:
a display panel configured to display an image; and a touch antenna array disposed on the display panel, wherein the touch antenna array includes:
a touch electrode;
a touch wiring electrically connected to the touch electrode;
an antenna electrode comprising a plurality of antenna elements;
a feeder electrically connected to the antenna electrode; and
a shielding electrode to which a ground voltage or a constant voltage is applied, and
wherein at least two of the touch wiring, the feeder, and the shielding electrode at least partially overlap each other.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Ki Seo
• Kim Jae-Kyoung
• Park Won Sang
• You Bong Hyun

Classifications

• G06F2203/04107

  Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds · CPC title

• G06F1/1698

  the I/O peripheral being a sending/receiving arrangement to establish a cordless communication link, e.g. radio or infrared link, integrated cellular phone (details of antennas disposed inside a computer H01Q1/2266) · CPC title

• G06F1/1652

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

• G06F1/1643

  the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615) · CPC title

• G06F1/1626

  with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs] · CPC title