Touchscreens evolve from GG and GFF architectures

April 13, 2012 — Demand is sharply increasing for projected capacitive (PROCAP) touchscreen display panels, used in smartphones and tablets, but capacitive touch panel structures are unique to each company. This core technology must be advanced and differentiated to enable more touch devices, says Displaybank. Technical issues and a lack of cooperation could restrain touchscreen growth.

In general, capacitive touch can be classified into glass- or film-substrate produced. Glass-substrate capacitive touchscreens are found in Apple’s iPhone and Samsung’s Galaxy S phone. The iPhone uses a glass-glass (GG) structure that forms the X-axis sensing electrode on the upper surface of a glass substrate and Y-axis sensing electrode on the bottom. While Apple’s GG method and other mobile phone makers’ glass/film (GFF) designs are becoming mainstream, attempts to develop products such as G1F, and G2 with better transmittance and thinness will continue. G2 is cover window integrated touch, which does not require separate touch sensor.

Figure. PROCAP touchscreen architectures. SOURCE: Displaybank.

The advantages of GFF are low capital cost, suitable for small quantity batch production, and light structure. GG is suitable for mass production and has better appearance properties, but it has high investment costs and is heavier than film-based panels.

Learn more about the various PROCAP touchscreen options and merits in Diverse touchscreen technologies drive industry transition

Displaybank looked at the evolution of touchscreen technologies by examining Apple’s related patents: the main ideas of these patents, technical information, and technology flow. They selected 7 key patents for Apple’s double-sided indium tin oxide (DITO) and single-sided ITO (SITO), and also referred to Apple and Motorola’s patent dispute issue and product analysis result of Apple’s iPhone 4S.

Learn more about the report, Apple Touch Sensor Panel (TSP) Key Technology – GG (DITO & SITO) Key Patent Analysis, at http://www.displaybank.com/_eng/research/report_view.html?id=865&cate=4

POST A COMMENT

Easily post a comment below using your Linkedin, Twitter, Google or Facebook account. Comments won't automatically be posted to your social media accounts unless you select to share.

One thought on “Touchscreens evolve from GG and GFF architectures

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

NEW PRODUCTS

Spectral reflectometer for film thickness measurement
04/08/2014Verity Instruments, Inc. is pleased to announce the availability of its new SP2100 Spectral Reflectometer designed for film thickness measurement f...
New Kimtech Pure G3 EvT nitrile gloves
04/03/2014Kimberly-Clark Professional has introduced a new glove that is designed to provide process protection for the semiconductor and electronics industries....
UVOTECH releases UV-Ozone Cleaning System
04/03/2014Using a UV-Ozone Cleaner, near atomically clean surfaces can be achieved in minutes without any damage to your devices. ...