TOUCH PANEL

• US 20160195983A1
• Filed: 10/14/2015
• Published: 07/07/2016
• Est. Priority Date: 10/17/2014
• Status: Abandoned Application

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: MIYAKE, Hiroyuki
• Application Number:
  US14/882,854
• Publication Number:
  US 20160195983A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 2203/04112 Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
• 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 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• 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
• CPC Class Codes: G06F 3/0448 Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality

Abstract

A touch panel with higher sensing accuracy or higher detection sensitivity is provided. The touch panel includes a first conductive layer, a second conductive layer, a plurality of display elements, and a scan line. In a plan view, the first conductive layer has an outline including a first portion that is linear and parallel to a first direction. In the plan view, the second conductive layer has an outline including a second portion that is linear and parallel to the first direction. The first portion and the second portion face each other. The display element is in a position not overlapping with the first conductive layer nor the second conductive layer. The scan line has a portion extending in a second direction. An angle between the first direction and the second direction is greater than or equal to 30° and less than or equal to 60°.

Claims

1. A touch panel comprising:

a first conductive layer;

a second conductive layer;

a plurality of display elements; and

a scan line,

wherein the first conductive layer has an outline including a first portion that is linear and parallel to a first direction in a plan view,

wherein the second conductive layer has an outline including a second portion that is linear and parallel to the first direction in the plan view,

wherein the first portion and the second portion face each other,

wherein the display element is in a position not overlapping with the first conductive layer nor the second conductive layer,

wherein the scan line has a portion extending in a second direction, and

wherein an angle between the first direction and the second direction is greater than or equal to 30° and

less than or equal to 60°

.

2. The touch panel according to claim 1,

wherein the first conductive layer and the second conductive layer each have a lattice shape where strips parallel to the first direction and strips parallel to a direction perpendicular to the first direction intersect with each other with openings between them, and

wherein one of the openings overlaps with at least one of the plurality of the display elements.

3. The touch panel according to claim 1,

wherein the display element has a polygonal shape whose two sides are parallel to the first direction in the plan view.

4. The touch panel according to claim 1, further comprising:

a first substrate; and

a second substrate,

wherein the first conductive layer, the second conductive layer, the display element, and the scan line are between the first substrate and the second substrate.

5. The touch panel according to claim 4, further comprising a light-blocking layer configured to block visible light,

wherein the first substrate is provided with the display element and the scan line,

wherein the second substrate is provided with the first conductive layer, the second conductive layer, and the light-blocking layer, and

wherein the light-blocking layer is between the first conductive layer and the second substrate, and between the second conductive layer and the second substrate.

6. The touch panel according to claim 4,

wherein the first conductive layer and the second conductive layer are in the same plane.

7. The touch panel according to claim 1,

wherein a distance between the first portion and the second portion is greater than or equal to 1 μ

m and less than or equal to 10 mm.

8. A touch panel module comprising:

the touch panel according to claim 1, and

an FPC.

9. An electronic device comprising:

the touch panel according to claim 1, and

at least one of an antenna, a button, a battery, a speaker, a microphone, and a lens.