Touch-control display and fabrication method thereof

• US 9,582,041 B2
• Filed: 05/28/2014
• Issued: 02/28/2017
• Est. Priority Date: 06/13/2013
• Status: Active Grant

• Current Assignee: Yuanhan Materials Incorporated (Eink Holdings, Inc.)
• Original Assignee: SiPix Technology Inc. (E Ink Holdings Incorporated)
• Inventors: Wang, Hsiao-Yuh, Cheng, Hsiao-Lung, Hung, Chi-Mao, Sun, Wei-Min
• Primary Examiner(s): Lao, Lun-Yi
• Assistant Examiner(s): KHAN, IBRAHIM A
• Application Number:
  US14/288,411
• Publication Number:
  US 20140368753A1
• Time in Patent Office: 1,007 Days
• US Class Current: 1/1
• CPC Class Codes: G06F 1/1643 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 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-control display includes a first substrate having a first surface and a second surface opposite to the first surface, a display panel disposed on a side of the first surface of the first substrate, and a touch control panel disposed on a side of the second surface of the first substrate. The display panel includes a first transparent conductive layer disposed on the first surface of the first substrate, and the first transparent conductive layer is in contact with the first substrate. The touch control panel has a second transparent conductive layer disposed on the second surface of the first substrate, and the second transparent conductive layer is in contact with the first substrate.

Claims

1. A fabrication method of a touch-control display, comprising:

providing a first substrate, wherein a first transparent conductive layer and a second transparent conductive layer are pre-fabricated and blanketly formed on two opposite surfaces of the first substrate with no patterning process, the second transparent conductive layer being disposed above the first transparent conductive layer;

after providing the first substrate with the first transparent conductive layer and the second transparent conductive layer, performing a patterning process to the second transparent conductive layer disposed on the first substrate to form a plurality of sensors in the second transparent conductive layer so that the second transparent conductive layer serves as the sensor layer of a touch panel; and

after providing the first substrate with the first transparent conductive layer and the second transparent conductive layer, successively forming a display medium layer and a display electrode layer on a side of the first transparent conductive layer opposite to the first substrate such that the first transparent conductive layer, the display medium layer and the display electrode layer compose a display panel.

2. The fabrication method of the touch-control display of claim 1, further comprising forming a protection layer on a side of the first substrate having the second transparent conductive layer before forming the display medium layer and the display electrode layer, the protection layer covering the second transparent conductive layer.

3. The fabrication method of the touch-control display of claim 1, further comprising:

after the patterning process, providing a second substrate having a third transparent conductive layer disposed thereon; and

using an adhesive layer to attach the second substrate onto the second transparent conductive layer, wherein the third transparent conductive layer is disposed on a side of the second substrate opposite to the second transparent conductive layer.

4. The fabrication method of the touch-control display of claim 1, further comprising using an adhesive layer to attach an anti-glare layer onto a side of the first substrate having the second transparent conductive layer, the anti-glare layer covering the second transparent conductive layer.

5. The fabrication method of the touch-control display of claim 1, further comprising forming a protection layer on a side of the first substrate having the second transparent conductive layer after the display panel is formed, the protection covering the second transparent conductive layer.

6. The fabrication method of the touch-control display of claim 1, wherein the first transparent conductive layer is not patterned before performing the patterning process to the second transparent conductive layer.