Touch display device

Patent metadata

Field	Value
Publication number	US-9645660-B2
Application number	US-201414308663-A
Country	US
Kind code	B2
Filing date	Jun 18, 2014
Priority date	Jun 18, 2013
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

A touch display device has portions defining a display area, and a non-display area. The touch display device comprises a display module, a touch panel, and a shielding component. The display module defines at least one light leakage area. The display module generates at least one leaked light ray diverging from the light leakage area. The touch panel module faces the display module and includes a cover structure and a touch sensing structure. The cover structure includes a cover and a decorative layer. The touch sensing structure disposed between the cover structure and the display module. The shielding component disposed between the decorative layer and the display module such that the shielding component shields the traveling path of at least one leaked light ray. The touch display device can prevent light leakage via the positioning of the shielding component.

First claim

What is claimed is:

1. A touch display device having a display area and a non-display area arranged adjacent to the display area, comprising:
a display module having at least one light leakage area defined in the non-display area, at least one leaked light ray generated by the display module and diverging from the light leakage area;
a touch panel module facing the display module and including:
a cover structure comprising:
a cover and a decorative layer, wherein the decorative layer is arranged at peripheral portions of the cover to define the non-display area; and

a touch sensing structure disposed between the cover structure and the display module;
a carrier substrate, wherein the touch sensing structure is disposed on the carrier substrate; and

a shielding component disposed between the decorative layer and the display module, and arranged in the traveling path of at least one leaked light ray;
wherein the shielding component is disposed on a surface of the carrier substrate, and the touch sensing structure is disposed on a different surface of the carrier substrate;
wherein the shielding component provides adhesion, and the shielding component contacts the display module and the carrier substrate.

2. The touch display device as recited in claim 1 , wherein the shielding component is disposed on the decorative layer or the display module.

3. The touch display device as recited in one of claim 1 , wherein the shielding component has a thickness less than 20 μm.

Assignees

• Tpk Touch Solutions Xiamen Inc
• Tpk Touch Solutions Xiamen Inc

Inventors

• Chiu Tsung-Ke
• Yang Manyu
• Zhuang Sanyang
• Chen Tianfu
• Yu Jing

Classifications

• G06F3/044

  by capacitive means · CPC title

• G06F2203/04107

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

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F3/0446

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