Touch panel display device

• US 8,823,672 B2
• Filed: 03/11/2013
• Issued: 09/02/2014
• Est. Priority Date: 11/20/2012
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Kim, Hyun-Chel
• Primary Examiner(s): Bowman, Mary Ellen
• Application Number:
  US13/792,711
• Publication Number:
  US 20140140036A1
• Time in Patent Office: 540 Days
• Field of Search: 345173-176, 362/19
• US Class Current: 345/173
• CPC Class Codes: F21V 15/04 Resilient mountings, e.g. shock absorbers shock absorbing devices of vehicle headlamp housings B60Q1/0491; in general F16F15/04
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

A touch panel display device including a display panel displaying an image; a polarizing plate attached onto the display panel; a touch panel on and spaced apart from an upper portion of the polarizing plate; a resin layer between the touch panel and the polarizing plate, the resin layer bonding the touch panel and the polarizing plate; a window on the touch panel; and a reinforcement layer between the window and the touch panel or between the touch panel and the resin layer, wherein the reinforcement layer prevents damage to the touch panel caused by bending stress.

Claims

1. A touch panel display device, comprising:

a display panel displaying an image;

a polarizing plate attached onto the display panel;

a touch panel on and spaced apart from an upper portion of the polarizing plate;

a resin layer between the touch panel and the polarizing plate, the resin layer bonding the touch panel and the polarizing plate;

a window on the touch panel; and

a reinforcement layer disposed at least between the window and the touch panel and between the touch panel and the resin layer, or both,

wherein the reinforcement layer;

prevents damage to the touch panel caused by bending stress, and

includes an oxide semiconductor.

2. The touch panel display device of claim 1, wherein the reinforcement layer further includes a metal or metal compound.

3. The touch panel display device of claim 2, wherein the metal or metal compound includes at least one of copper, ITO, or aluminum.

4. The touch panel display device of claim 1, wherein the oxide semiconductor includes at least one of:

an oxide having zinc, gallium, tin, or indium as a base, or

a complex oxide of zinc, gallium, tin, or indium.

5. The touch panel display device of claim 4, wherein the complex oxide includes at least one of indium-gallium-zinc oxide, indium-zinc oxide, or zinc-tin oxide.

6. The touch panel display device of claim 1, wherein the reinforcement layer includes a plurality of layers.

7. The touch panel display device of claim 6, wherein at least two layers of the plurality of layers are different from each other.

8. The touch panel display device of claim 1, wherein the oxide semiconductor includes an oxide having titanium, hafnium, zirconium, aluminum, tantalum, germanium, zinc, gallium, tin, or indium as a base.

9. The touch panel display device of claim 1, wherein the oxide semiconductor includes one of zinc oxide (ZnO), indium-gallium-zinc oxide (InGaZnO₄), indium-zinc oxide (Zn—

In—

O), zinc-tin oxide (Zn—

Sn—

O) indium-gallium oxide (In—

Ga—

O), indium-tin oxide (In—

Sn—

O), indium-zirconium oxide (In—

Zr—

O), indium-zirconium-zinc oxide (In—

Zr—

Zn—

O), indium-zirconium-tin oxide (In—

Zr—

Sn—

O), indium-zirconium-gallium oxide (In—

Zr—

Ga—

O), indium-aluminum oxide (In—

Al—

O), indium-zinc-aluminum oxide (In—

Zn—

Al—

O), indium-tin-aluminum oxide (In—

Sn—

Al—

O), indium-aluminum-gallium oxide (In—

Al—

Ga—

O), indium-tantalum oxide (In—

Ta—

O), indium-tantalum-zinc oxide (In—

Ta—

Zn—

O), indium-tantalum-tin oxide (In—

Ta—

Sn—

O), indium-tantalum-gallium oxide (In—

Ta—

Ga—

O), indium-germanium oxide (In—

Ge—

O), indium-germanium-zinc oxide (In—

Ge—

Zn—

O), indium-germanium-tin oxide (In—

Ge—

Sn—

O), indium-germanium-gallium oxide (In—

Ge—

Ga—

O), titanium-indium-zinc oxide (Ti—

In—

Zn—

O), or hafnium-indium-zinc oxide (Hf—

In—

Zn—

O).