Touch Sensor

Nissha has two type pf the Touch Sensors:
capacitive and resistive.

Capacitive-type Touch Sensor

The Capacitive-type Touch Sensor, FineTouch “Capacitive” is a film sensor with a system that recognizes the position of a finger due to the sensor feeling changes in the electrostatic capacitance (electrical charge) generated when a finger touches a surface of touch sensor.
FineTouch "Capacitive" is thin, light weight, and has high levels of readability utilizing Nissha's state-of-the-art etching technology. Moreover, because it is possible to make the width of the lines in the circuit and the spaces between them narrower, Nissha's Capacitive-type Touch Sensor won the Nikkei Business Daily Awards for Superiority at the 2013 Nikkei Superior Products and Services Awards.

2013 Nikkei Superior Products and Services Awards -Nissha Capacitive-type Touch Sensor

Supplying not only sensors but also modules (sensors affixed to cover parts) can achieve fine decorations, stable inputting and the slim lining of products. Moreover, patterns and configuration designs can be flexibly produced to meet the requirements of sensor chips selected by customers including those designed for multipoint input applications.

* FineTouch is a registered trademark or a trademark of Nissha Co., Ltd.

Product Examples

The Capacitive-type Touch Sensor, FineTouch is widely used for various applications.

Mobile gaming gear "Nintendo Switch" Nintendo Co., Ltd.
 

Mobile Robotic Phone

"RoBoHoN" Sharp Corporation
*RoBoHoN is a trademark of  Sharp Corporation


 
Mobile Gaming Gear
"Nintendo SwitchTM" Nintendo Co., Ltd.
*Nintendo Switch is a trademark of
 Nintendo Co., Ltd.
Industrial Equipment 
"TC8000/TC51/TC56" Touch Computer Series
Zebra Technologies, Inc.
 

Key Features

  1. By using film as a base material, it is thinner and lighter than competing glass sensor, there is no worry of cracking even if dropped.
  2. Same level on transparency and price with glass sensor.
  3. Not only flat designs, curved designs are possible to apply because of its feature as film.
  4. Support all of these supply types, sensors, sensor modules (FPC attached), sensors affixed to IMD products or cover glasses.
  5. Realizing a seamless design, it is possible to decorate the film sensor’s frame area to conceal the electric circuits.
  6. Sensors can be prepared to meet the requirements of sensor chips selected by customers.
  7. Roll-to-roll processing realizes mass production.
  8. We have Photolithography Process and Printing Process. It is possible to make the frame as narrow as glass sensor using Photolithography Process.
* Photolithography is a technology that forms high precision patterns by exposing the surface of a substance coated with photo-sensitive material (resist) to intensive light.

Capacitive-type Touch Sensor

Capacitive-type Touch Sensor

Comparison with Glass Sensor as 100

*per 1 sensor
  Glass sensor The Capacitive-type film sensors
by Photolithography process
Thickness 100 Less than 61
Specific gravity 100 Less than 56
Weight 100 Less than 34

Comparison of the Frame Size

Printing process

Printing process

Photolithography process

Photolithography process

Basic Principle and Structures of Capacitive-type Touch Sensor

Structures

Structures of Capacitive-type Touch Sensor

Structures of Capacitive-type Touch Sensor

Basic Principle

The electrostatic capacitance between X and Y electrodes changes when that area is touched by a finger so the touch position is detected.

Basic principle of Capacitive-type Touch Sensor

Derivative Technology

Mid Cell, the ultimate thin, lightweight technology

Increased thinness and lightness are constantly demanded of mobile devices such as smartphones (high function mobile terminals) along with slimmer borders. How thin and light sensor substrates are made has become an issue in relation to those ends.
Mid Cell is the ultimate thin, lightweight technology, omitting the sensor substrate altogether by forming sensors made up from transparent conductive film on a polarizing plate (including phase difference film).
Nissha has started on the development of this Mid Cell technology (Patent acquired).

* Mid Cell is a registered trademark or a trademark of Nissha Co., Ltd.

Resistive-type Touch Sensor

Key features are lightweight, thin, optical clarity,
durability and exact sensing

The Resistive-type Touch Sensor, FineTouch "Classic" is thin, lightweight, and has high levels of readability (Patent acquired). Addition to these features, Nissha's Resistive-type Touch Sensor achieve stress-free inputting by excellent input durability and exact sensing. Since the Resistive-type Touch Sensor is possible to operate with gloves on, it is suitable for use in medical front, production site, or clean room.

* FineTouch is a Nissha's Touch Sensor with outstanding accuracy and functionality.
* FineTouch is a registered trademark or a trademark of Nissha Co., Ltd.

Product example

FineTouch "Classic" is a Resistive-type Touch Sensor, enables ease of handwriting and pin-point input with a stylus pen. Accepted the outstanding durability and exact sensing, it is widely used for various applications.

Mobile gaming gear

Mobile gaming gear "NINTENDO 3DS" Nintendo Co., Ltd.

Digital high vision video camera

Digital high vision video camera "HC-V300M" Panasonic Corporation

Key Features

1. Various combination of supply are available depending on product requirements; film, glass, or plastic.
2. Nissha's own unique technology has excellent input durability.
3. High-level of optical clarity is achieved through super-fine micro spacers and high transmission color-less touch screen (touch panel).
4. Nissha's advanced design capability allows for a narrow frame type.
5. Exact sensing allows stress-free touch input.
6. By decoration to hide the circuit, smooth design is achieved without a depression in the display portion of the product.

Structures

The basic structure of the resistive-type touch sensor consists of two sheets of electrode film on which transparent conducting layers are coated. A slight gap is provided between the two films. When the upper film is pushed with a finger or a stylus pen, the film deflects and the two transparent conducting layers contact each other, then electric current flows into the lower film. The pushed position can be identified by reading out that location. The roles of the micro spacers are prevention from unnecessary contact of two electrode films, and adjustment of the input pressure by its density, etc.

Basic principle of Resistive-type Touch Sensor

Inquiry

Please feel free to contact us.

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