Tortai Technologies Company Limited found in 2007,located in Shenzhen, Guangdong Province, is one of the professional human machine interface and electronics circuit manufacturers in South China. Our focused experience in membrane switches and printed circuit board has gained Tortai the reputation as a very cost-effective and reliable source for a wide range of electronic products field.
Tortai continues to expand through the acquisition of state-of-the-art equipment and the development of advanced processing systems. We have a continuing process of building a team that is knowledgeable, experienced and understand the importance of careful listening. We look forward to meeting and exceeding the high expectations of our customers and attaining our mutual goals for a long-term partnership.
Our application engineers welcome the opportunity to assist you in developing products to fit your particular applications. Pride in workmanship is our goal, and striving to achieve 100% customer satisfaction. From the moment your order arrives, our dedicated staff of professionals guarantees the success of your project.
Production Plant
With two manufacturing facilities in Shenzhen, which performs integrated service from design, tooling to final production, Jasper can help minimize customers' production cost and meet their differentiate demands as well. We have been highly ranked in a number of fields because of our expertise in electronic technology accumulated over the years.
OEM Capability
We accept OEM orders for all types of membrane switches, membrane keyboards, and flexible PCBs. We also design and manufacture new models and products with buyers' logos labels.
Testing Details
All materials and components are inspected at each stage of production and every finished product is checked before delivery as part of our 100% quality testing.

PC/Electronic/Machine Peripherals
 Power Switches
 Membrane Switches
 Graphic Overlays
 Silicone Rubber Keypads
 Membrane Keypads
 Plastic Parts
Display Products
 Touch Screens
 Overlay Screens
PC/Electronic/Machin Control Components
 Printed Circuit Board
 Flexible Printed Circuits
 Printed Circuit Board Assembly

Graphic Overlays provide an attractive interface to your machine or component. Graphic Overlays are the single piece of your work that is most seen and used by your customers. As an OEM, you demand quality and performance. We understand. Tortai has strict ISO procedures for producing the same high level of quality for each production run we perform. Tortai's innovation in the area of graphic overlays, membrane switches, and rubber keypads is well known throughout the industry. We can help you see your project from design to production. Just give us a call and we'll help in any stage of the process.

Nameplate

We produce nameplates for everything from gift baskets to military aircraft.
From start to finish we'll do the job - manufacturing and shipping to your precise specifications. Our knowledgeable staff uses state-of-the-art electronic graphic systems to craft your ideas into reality.

Membrane switches often provide the sole interaction between your customers and the technology you provide to them. It is critical that your customers are satisfied with the tactile response of the machine interface. Our team of engineers and designers can provide unique innovation to your process. Our expertise in human - machine interaction can supply your application with the ease of use required to compete in an increasingly competitive marketplace. Contact our technical sales staff for a competitive quote on your next project.

Touch Screen

 

Touch screen technology has the potential to replace most functions of the mouse and keyboard. As the technology advances, people may be able to operate computers without mice and keyboards. Because of its convenience , touch screen technology solutions has been applied more and more to industries, applications, products and services, such as Kiosks, POS (Point-of-Sale), consumer electronics, tablet PC, moderate to harsh Machine Control, Process Control, System Control/Office Automation and Car PC, etc.

 

Nowadays there are four types of touch screen technologies applied in our life and industries.

 

 

■Capacitive

 

■ Resistive

 

■ Infrared

 

■ Surface acoustic wave (SAW)

 

 

The capacitive technology is applied on glass sensor that is added conductive coatings. The electrical charge is set at the four corners of the glass along an X-Y axis, and spreads the stable voltage on the glass as a uniform field. When a user touches the screen, some of the charge is transferred to the user, and makes the potential difference on the screen. After the panel controller recognizes that, the controller will send the X-Y axis information to the PC port. The advantage is that capacitive technology transmits almost 90% percent of the light from the screen. The superior efficiency gives capacitive better than resistive technology.

 

The resistive technology is applied on two layers with overlaying a hard-coated ITO on a conductive clear glass. These two layers are held apart by spacers (dot). When the flexible layer is touched and contacts the other layer that is set on the stable glass, the voltage is detected and measured from same voltage applied as an electrical field. The controller uses voltage measured from along the X-Y axis to calculate the position of the touch. The advantage of resistive technology is referred to the cheap price, but the surface of resistive panel is not solid as capacitive panel, it cannot sustain strong punches and work in harsh environment.

 

The infrared technology is applied on touch panels that place infrared receivers and CRT utilizing infrared Light Emitting Diodes (LED) along the horizontal and vertical X-Y axis. When a user touch the surface of screen, the infrared emitted from LED beam is broken and receiver transmits X-Y axis information to the PC port via touch controller.

 

The surface acoustic wave (SAW) technology is based on two transducers (transmitting and receiving) placed for the both of X and Y axis on the touch panel. The other important element of SAW is placed on the glass, called reflector. The controller sends electrical signal to the transmitting transducer, and transducer converts the signal into ultrasonic waves and emits to reflectors that are lined up along the edge of the panel. After reflectors refract waves to the receiving transducers, the receiving transducer converts the waves into an electrical signal and sends back to the controller. When the user touches the panel, the user absorbs a portion of the wave travelling across it. The controller compares and calculates the change of signal that transducers emits and receives. The calculation processes for both X and Y axis independently.

Power switches