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Touchscreens

Touchscreens

What is a touchscreen?

A touchscreen is a transparent touch-sensitive detector either mounted on the front of or directly connected to a display (e.g. TFT/LCD). Touchscreens are connected to a controller board. Data can be triggered or transferred directly to the display system by gently touching the surface with a finger, glove or stylus.

Criteria to consider when choosing touchscreen technology:
  • Use
  • Resolution
    Another important factor here is choosing the correct controller board, whether
    8 Bit = 256x256,
    10 Bit = 1024 x 1024, or
    12Bit = 4096x4096
    depending on the size of the touchscreen.
  • Transparency (transmission)
  • Life expectancy
  • Resistance to vandalism
  • Reaction time
  • Sensitivity to interference (EMC)
  • Soiling and insulation
  • Operability using a finger, glove or stylus
  • The cost
The advantages of a touchscreen:
  • Low costs: changes to the software can be used to quickly alter the device type, image or language
  • User-friendly
  • No complicated use of keys or a mouse, thereby reducing the number of errors made
  • Extremely useful for applications in which weight plays an important role, e.g. in portable devices
Example applications for touchscreens
  • Notebooks, hand-held computers
  • Corporate data entry systems
  • Machines and process control
  • Medical devices e.g. for monitoring patients or X-ray machines
  • Access control systems
  • Laboratory and analytical devices
  • Cash dispensers
  • Kiosk systems
  • Copying systems
Controllerboards
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Technical Data Sheet to The TD-USB/RS232 Controllerboard Series The controllerboard serves to link through RS-232, USB or PS/2 ports with a computer server for data communication. Its main purpose lies in providing the computer user an accurate, swift and speedy response while using a touch screen. The driver program also provides a simulated mouse feature and supports a variety of PC operating systems, such as Windows 98, Windows NT4, Windows 2000, Windows XP, DOS, iMac, and Red Hat Linux.

Controller Specification

Power Requirements

+5VDC (Maximum 100mA, typical 70mA, 50mV peak-to-peak maximum ripple)

Operating Temperature

0 to 50 degree C

Storage Temperature

-40 to +80degree C

Relative Humidity

95% at 60 degree C

Protocol

RS232 Model: 9600 bauds, None parity, 8 data bits, 1 stop bit
USB Model: USB 1.1 low speed
PS/2 Model: PS/2 mouse

Resolution

2048 x 2048

Report Rate

RS232 Model: Max 160 points/sec
USB Model: Max 160 points/sec
PS/2 Model: Max 140 points/sec

Response time

MAX. 35ms

Pin Out definition

4 wire model: X+, Y+, X-, Y-
5 wire model: UL, UR, COM, LR, LL

Features for TouchKit software

Calibration

1. Fast full oriental 4 points position
2. Support monitor/display rotation

Compensation

Accuracy 25 points linearity compensation

Draw Test

Position and linearity verification

Controller Setting

1. Support multiple controllers
2. Dynamical add/remove controllers
3. Change controller interface without reboot

Language

Support 7 languages for Windows

Mouse Emulator

1. Right/Left button emulation
2. Click/Drawing mode

Sound Notification

1. No sound
2. Touch down
3. Touch up

Double Click

1. Configurable double click speed
2. Configurable double click area

OS Support

1. Windows 95/98/ME/2000/NT4/XP
2. Windows CE2.12, 3.0
3. Linux (X Window Version: 3, 4; Red Hat: 6.0~7.2; Mandrake 5.0~8.0)
4. iMac OS9
5. MS-DOS:Support display resolution: 320x200, 640x200, 640x350, 640x480, 800x600, 1024x768, 1280x1024

COM Port Support

1. Support COM1~COM256 for Windows and Linux
2. Support COM1~COM8 for DOS



Part No.

Description

TD-USB-W4R-SC

4-wire USB Type Controller board+180cm USB Cable

4 pin Flat Cable+ Software

TD-RS232-W4R-SC

4-wire RS232 Type Controllerboard+180 cm RS232 CABLE

4 pin Flat Cable+ Software

TD-USB-W5/8R-SC

5/8-wire USB Type Controllerboard+180cm USB Cable

5/8 pin Flat Cable + Software

TD-RS232-W5/8R-SC

5/8-wire RS232 Type Controllerboard+180 cm RS232 CABLE

5/8 pin Flat Cable + Software

TD-RS232-W5R-SCELO

5-wire ELO compatitable RS232 Type Controllerboard

180 cm RS232 CABLE

TD-IC/USB-W4RD-SC

4-wire USB-Firmware IC

TD-IC/RS232-W4R-SC

4-wire RS232-Firmware IC

TD-IC/USB-W5/8R-SC

5/8-wire USB-Firmware IC

TD – IC/RS232-W5/8R-SC

5/8-wire RS232-Firmware IC

TD-IC/RS232-W5R-SCELO

5-wire ELO compatitable RS232-Firmware IC

 

 

Wir haben verschiedene Touchscreens im Angebot, die teilweise verschiedene Techniken verwenden. Um Informationen, Vor- sowie Nachteile einzusehen, klicken Sie den gewünschten Typ einfach an:

Analog resistive Touchscreens

Matrix-Touchscreens

Kundenspezifische analog resistive Touchscreens

Kapazitive Touchscreens

SAW (Surface Acoustic Wave) Touchscreens

Vandalensichere Touchscreens

 

Touch Design fertigt neben kundenspezifischen Touch Screens mit Low Reflection, Circular Polfilter und Linear Polfilter auch Panels nach amerikanischen und japanischen Spezifikationen,
die in 4 wire, 5 wire und 8 wire Technologien umgesetzt werden.

 

Wir produzieren Film Glass Touch Screens in 4 wire, 5 wire und 8 wire Technologien.