Touch type organic light emitting diode display device

Patent metadata

Field	Value
Publication number	US-9696768-B2
Application number	US-201314135068-A
Country	US
Kind code	B2
Filing date	Dec 19, 2013
Priority date	Apr 26, 2013
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

An organic light emitting diode display device includes a display portion including a substrate, and an organic light emitting diode on the substrate; and an electromagnetic induction sensor portion attached to a bottom of the display portion, wherein the electromagnetic induction sensor portion includes: a back plate; a protection layer covering a bottom of the back plate; and a loop antenna pattern on at least one of top and bottom surfaces of the back plate.

First claim

What is claimed is:

1. An organic light emitting diode display device comprising:
a display portion including a substrate, an organic light emitting diode on a top surface of the substrate, and a polarizing plate on the organic light emitting diode and on the top surface of the substrate; and
an electromagnetic induction sensor portion attached to a bottom surface of the substrate, wherein the electromagnetic induction sensor portion is farther from a user's side of the organic light emitting diode display than the display portion, and
wherein the electromagnetic induction sensor portion includes:
a flexible back plate made of a polyester and attached to the substrate, wherein the substrate is a flexible substrate made of a polyimide and has a thickness of about 5 μm, and wherein the flexible back plate supports the flexible substrate to prevent tearing thereof;
a protection layer covering a bottom of the back plate; and
a disjunctive loop antenna pattern arranged on a same single layer directly on and physically contacting the back plate, wherein the disjunctive loop antenna pattern is on only one of top and bottom surfaces of the back plate, and
wherein a thickness of the electromagnetic induction sensor portion is between 100 to 200 μm.

2. The device according to claim 1 , wherein the disjunctive loop antenna pattern includes a metal pattern directly on the bottom surface of the back plate.

3. The device according to claim 1 , wherein the disjunctive loop antenna pattern includes a metal pattern directly on the top surface of the back plate.

Assignees

• Lg Display Co Ltd

Inventors

• Jeong Il-Doo
• Kim Ha-Zoong
• Park Hyun-Kyu
• Choi Jin-Wook

Classifications

• G06F3/046

  by electromagnetic means · CPC title

• G06F1/1692 Primary

  the I/O peripheral being a secondary touch screen used as control interface, e.g. virtual buttons or sliders · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• H10K50/00 Primary

  Organic light-emitting devices (integrated devices or assemblies of multiple devices H10K59/00, H10K65/00; organic semiconductor lasers H01S5/36) · CPC title

• H10K50/166

  comprising a multilayered structure · CPC title