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Products - Capacitive Touch Panels

Overview
A capacitive type touch screen is coated with indium tin oxide (ITO) and an electrical current is continuously conducted across the screen. When a finger touches the screen, it draws a minute amount of capacitance to the point touched, and then the X-Y coordinates are calculated by the controller and transmitted to the operating system to locate the position of the finger. Projective type capacitive touch panels offer fast and sensitive touch response with excellent multi-touch navigation performance.

Young Fast’s advanced capacitive products are designed for optimized optics, durability, low power, easy integration, and an attractive user interface to meet the rigorous needs of consumer electronics. By collaborating with renowned IC vendors to develop high-speed and sensitive controllers, Young Fast has successfully minimized the impact of noise interference and has enhanced optical transparency.  Young Fast offers a wide array of capacitive TPS solutions, from the high-end all glass to the low cost film/glass and thin film/film/film.

Structure
The following diagram shows the structure of the Capacitive TPS solution.


Specifications

Item

Specification

Size

2.8”

Aspect Ratio

3:4

Structure

ITO Film / ITO Glass

IC Controller

MA81542A QFN32 (5mm x 5mm x 0.75mm)

I/O Number

6 x 6

Support Resolution

11 x 11

Interface

slave SPI / slave I2C (pin selection)

Input Method

Finger

ITO Glass

T=0.7mm , 300Ω/□ ±100 Ω

ITO Film

T=0.188mm , 300Ω/□ ±100 Ω Clear Type

High Operating Temperature Range

50℃,80%RH (except for dew gathering or congealing)

Low Operating Temperature Range

-10℃(except for dew gathering or congealing)

High Storage Temperature Range 60℃,90%RH (except for dew gathering or congealing)
Low Storage Temperature Range -30℃ (except for dew gathering or congealing)
Surface Hardness 3H- pressure 500gf , 45deg.
Light Transparency 82%min.
Flexible Pattern Heat Seal Peeling Strength 200gf/cm ( peeling upward by 90 deg.)
Package Drop No damage to the product.(1corner edge, 3 ridges, 6 surfaces, drop from 100 cm height)

Key Features
  • Enhanced durability, sensitivity and transmissivity
  • Able to detect position of soft and gentle touches
  • Dust, dirt, and water-resistant
  • Support for multi-touch functions

Applications
Suitable for high-end cellular phones, smart phones, mobile appliances, digital cameras, car navigation systems, and other consumer electronic devices
 

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