Electronic device including touch sensor integrated display

Patent metadata

Field	Value
Publication number	US-12585349-B2
Application number	US-202318345079-A
Country	US
Kind code	B2
Filing date	Jun 30, 2023
Priority date	Nov 30, 2021
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

An electronic device may include a display panel that displays an image through pixels and a window located above the display panel and through which light emitted from the display panel is transmitted. The display panel may include a light emitting area including the plurality of pixels; a plurality of organic light emitting elements located in the light emitting area to form the plurality of pixels; a thin film encapsulation layer covering the plurality of organic light emitting elements; a plurality of color filters arranged to overlap with the plurality of organic light emitting elements; and a plurality of light blocking portions located between the color filters to block the light. A plurality of first touch electrodes disposed between the plurality of light blocking portions and the thin film encapsulation layer and a plurality of second touch electrodes disposed between the thin film encapsulation layer and the window may be included.

First claim

The invention claimed is:

1 . An electronic device comprising:
a display panel configured to display images via a plurality of pixels; and a window disposed above the display panel and through which light emitted from the display panel is to be transmitted, wherein the display panel comprises: a light emitting area including the plurality of pixels, the plurality of pixels comprising a plurality of organic light emitting elements disposed in the light emitting area, a thin film encapsulation layer covering at least the plurality of organic light emitting elements, a plurality of color filters arranged to overlap with at least the plurality of organic light emitting elements as viewed from above, a plurality of light blocking portions, comprising light blocking material, disposed on a same layer as and between at least the color filters and configured to block light, a plurality of first touch electrodes disposed between at least the plurality of color filters, below first ones of the plurality of light blocking portions, and above the thin film encapsulation layer, a plurality of first light blocking members disposed below the plurality of first touch electrodes so as to be located between the plurality of first touch electrodes and the thin film encapsulation layer, a plurality of second touch electrodes disposed between second ones of the plurality of light blocking portions and the window, and a plurality of second light blocking members disposed above the plurality of second touch electrodes so as to be located between the plurality of second touch electrodes and the window, wherein the plurality of first touch electrodes are transmission (Tx) touch electrodes and the plurality of second touch electrodes are receiving (Rx) touch electrodes, and wherein no polarizing layer is disposed between the window and the display panel.

2 . The electronic device of claim 1 , wherein
the plurality of first touch electrodes are disposed to overlap with a first light blocking portion among the plurality of light blocking portions.

3 . The electronic device of claim 2 ,
wherein the plurality of first light blocking members and the plurality of second light blocking members comprise light blocking material.

4 . The electronic device of claim 3 , wherein
the plurality of second touch electrodes are disposed to overlap with a second light blocking portion among the plurality of light blocking portions, as viewed from above.

5 . The electronic device of claim 1 , wherein
at least one of the second light blocking members is disposed to cover an upper part and a side surface of the plurality of second touch electrodes.

6 . The electronic device of claim 1 , further comprising:
a plurality of first pressure sensors disposed on a layer on which the plurality of first touch electrodes are formed, and a plurality of second pressure sensors disposed on a layer on which the plurality of second touch electrodes are formed.

7 . An electronic device comprising:
a display panel configured to display images via a plurality of pixels; a window through which light emitted from the display panel is to be transmitted; and a camera module, comprising an imaging sensor, disposed under the display panel, wherein the display panel comprises: a light emitting area including the plurality of pixels, a plurality of organic light emitting elements disposed in the light emitting area to help form the plurality of pixels, a thin film encapsulation layer covering at least the plurality of organic light emitting elements, a plurality of color filters arranged to overlap with the plurality of organic light emitting elements as viewed from above, a plurality of light blocking portions, comprising light blocking material, disposed on a same layer as and between at least the color filters to block the light, a plurality of first touch electrodes disposed between at least the plurality of color filters, below first ones of the plurality of light blocking portions, and above the thin film encapsulation layer, a plurality of first light blocking members disposed below the plurality of first touch electrodes so as to be located between the plurality of first touch electrodes and the thin film encapsulation layer, a plurality of second touch electrodes disposed between second ones of the plurality of light blocking portions and the window, and a plurality of second light blocking members disposed above the plurality of second touch electrodes so as to be located between the plurality of second touch electrodes and the widow, wherein the plurality of first touch electrodes are transmission (Tx) touch electrodes and the plurality of second touch electrodes are receiving (Rx) touch electrodes, and wherein no polarizing layer is disposed between the window and the display panel.

8 . The electronic device of claim 7 , wherein
the plurality of first touch electrodes are disposed to overlap with a first light blocking portion among the plurality of light blocking portions, and the plurality of second touch electrodes are disposed to overlap with a second light blocking potion among the plurality of light blocking portions.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Minuk
• Bae Jungbae
• Heo Hoondo
• Kim Kwangtai

Classifications

• G06F3/0445

  using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer · CPC title

• G06F3/0443

  using a single layer of sensing electrodes · CPC title

• H10K50/865

  comprising light absorbing layers, e.g. light-blocking layers · CPC title

• H10K59/40

  OLEDs integrated with touch screens · CPC title

• H10K59/38

  comprising colour filters or colour changing media [CCM] · CPC title