Display device

Patent metadata

Field	Value
Publication number	US-12074153-B2
Application number	US-202017437949-A
Country	US
Kind code	B2
Filing date	Feb 11, 2020
Priority date	Mar 19, 2019
Publication date	Aug 27, 2024
Grant date	Aug 27, 2024

Abstract

The present invention relates to a display device, and more particularly, to an Active Matrix Organic Light Emitting Diode (AMOLED) display device including a Touch and Display Driver Integration (TDDI). A display device according to an exemplary embodiment of the present invention includes: a TFT layer including a first region and a second region; an encapsulation layer disposed on the first region of the TFT layer; an organic light emitting layer disposed between the first region of the TFT layer and the encapsulation layer; a touch sensor disposed on the encapsulation layer; a touch sensor line extending from the touch sensor; a touch sensor trace formed on the TFT layer and electrically connected with the touch sensor line; a display line formed in the TFT layer and configured to transmit a display driving signal; a TDDI disposed in the second region of the TFT layer and connected with the touch sensor trace and the display line; and an FPCB bonded with a bonding region formed in the second region of the TFT layer and electrically connected with the TDDI.

First claim

The invention claimed is:

1. A display device, comprising:
a TFT layer including a first region and a second region;
an encapsulation layer disposed on the first region of the TFT layer;
an organic light emitting layer disposed between the first region of the TFT layer and the encapsulation layer;
a touch sensor disposed on the encapsulation layer;
a touch sensor line extending from the touch sensor;
a touch sensor trace formed on the TFT layer and electrically connected with the touch sensor line;
a display line formed in the TFT layer and configured to transmit a display driving signal;
a TDDI disposed in the second region of the TFT layer and connected with the touch sensor trace and the display line;
a FPCB bonded with a bonding region formed in the second region of the TFT layer and electrically connected with the TDDI,
wherein the TFT layer is bent based on a virtual line located between the encapsulation layer and the TDDI, and the TDDI and the FPCB are positioned under the TFT layer.

2. The display device of claim 1 , wherein the touch sensor is directly formed on an upper surface of the encapsulation layer.

3. The display device of claim 1 , wherein the encapsulation layer includes a via hole, and the touch sensor line and the touch sensor trace are connected to the via hole.

4. The display device of claim 1 , further comprising:
a base film disposed under the first region and the second region of the TFT layer,
wherein the base film is bent based on the virtual line together with the TFT layer.

5. The display device of claim 1 , wherein the bonding area and the FPCB are bonded through an Anisotropic Conductive Film (ACF).

6. A display device, comprising:
a TFT layer;
an encapsulation layer disposed on the TFT layer;
an organic light emitting layer disposed between the TFT layer and the encapsulation layer;
a touch sensor disposed on the encapsulation layer;
a touch sensor line extending from the touch sensor to an edge region of the encapsulation layer;
a display line formed in the TFT layer and configured to transmit a display driving signal;
a TDDI disposed in an edge region of the TFT layer and connected with the display line; and
a FPCB bonded to both a first bonding region formed in an edge region of the encapsulation layer and a second bonding region formed in an edge region of the TFT layer, and configured to electrically connect the touch sensor line and the TDDI,
wherein the TFT layer is bent based on a virtual line located between the touch sensor and the TDDI, and the TDDI and the FPCB are positioned under the TFT layer.

7. The display device of claim 6 , wherein the touch sensor is directly formed on an upper surface of the encapsulation layer.

8. The display device of claim 6 , further comprising:
a base film disposed under the TFT layer;
wherein the base film is bent based on the virtual line together with the TFT layer.

9. The display device of claim 6 , wherein the first and second bonding areas and the FPCB are bonded through an Anisotropic Conductive Film (ACF).

Assignees

• Hideep Inc

Inventors

• Kim Seyeob
• Kim Bonkee
• Cho Youngho

Classifications

• H10W90/734

  between a chip and a stacked insulating package substrate, interposer or RDL · CPC title

• H10W90/00

  Package configurations · CPC title

• H10K59/873

  Encapsulations · CPC title

• G06F3/0446 Primary

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• H10K59/40

  OLEDs integrated with touch screens · CPC title