Touch apparatus

• US 10,095,333 B2
• Filed: 02/03/2016
• Issued: 10/09/2018
• Est. Priority Date: 12/02/2015
• Status: Active Grant

• Current Assignee: Unimicron Technology Corporation
• Original Assignee: UniDisplay Inc. (Unimicron Technology Corporation)
• Inventors: Wang, Wei-Chieh, Chan, Meng-Chia, Lin, Sheng-Hsien, Lin, Chun-Heng
• Primary Examiner(s): NGUYEN, JENNIFER T
• Application Number:
  US15/014,014
• Publication Number:
  US 20170160846A1
• Time in Patent Office: 979 Days
• Field of Search: 345 87, 345 89, 345173, 359269, 359273
• CPC Class Codes: G02F 1/155 Electrodes
• CPC Class Codes: G02F 1/157 Structural association of cells with optical devices, e.g. reflectors or illuminating devices
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• 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 apparatus including a first substrate, a first translucent electrode, a second substrate, an electrochromic layer, a reflective film, and a touch sensing structure is provided. The first substrate has a first inner surface and a first outer surface opposite to each other. The first translucent electrode is disposed on the first inner surface. The second substrate is disposed opposite to the first substrate. The electrochromic layer is located between the first inner surface of the first substrate and the second substrate. The reflective film is disposed on the second substrate. The touch sensing structure is disposed on the first outer surface of the first substrate.

Claims

1. A touch apparatus, comprising:

a first substrate comprising a first inner surface and a first outer surface opposite to each other;

a first translucent electrode disposed on the first inner surface of the first substrate;

a second substrate disposed opposite to the first substrate;

an electrochromic layer located between the first inner surface of the first substrate and the second substrate;

a reflective film disposed on the second substrate; and

a touch sensing structure disposed on the first outer surface of the first substrate,

wherein the second substrate comprises a second inner surface facing the electrochromic layer and a second outer surface opposite to the second inner surface, and the touch apparatus further comprises;

a second translucent electrode disposed on the second inner surface of the second substrate, wherein the reflective film is disposed on the second outer surface of the second substrate and the display panel is disposed on the reflective film,

wherein the first substrate further comprises a first side surface connecting the first inner surface and the first outer surface, and the first translucent electrode extends from the first inner surface to the first side surface, and the second substrate further comprises a second side surface connecting the second inner surface and the second outer surface, and the second translucent electrode extends from the second inner surface to the second side surface.

2. The touch apparatus according to claim 1, wherein the reflective film is a transflective film, and the touch apparatus further comprises:

a display panel, wherein the display panel, the transflective film, the electrochromic layer, and the touch sensing structure are sequentially stacked in a normal direction of the first outer surface.

3. The touch apparatus according to claim 1, wherein the reflective film is a totally reflective film.

4. The touch apparatus according to claim 1, wherein the touch sensing structure comprises:

a first sensing unit formed by connecting a plurality of first sensing pads and a plurality of bridge lines in series and disposed on the first outer surface of the first substrate; and

a second sensing unit intersecting the first sensing unit above the bridge lines and located in the same layer as the first sensing pads.

5. The touch apparatus according to claim 4, further comprising:

a protective substrate covering the touch sensing structure; and

an optical adhesive layer, wherein the protective substrate is bonded to the touch sensing structure through the optical adhesive layer.

6. The touch apparatus according to claim 1, wherein the touch sensing structure comprises:

a plurality of first sensing units disposed on the first outer surface of the first substrate;

a protective substrate;

a plurality of second sensing units disposed on the protective substrate and intersecting the first sensing units; and

an optical adhesive layer, wherein the second sensing units and the protective substrate are bonded to the first sensing units through the optical adhesive layer.