The document discusses touch screens, describing them as computer input devices that allow users to operate systems by touching pictures or writing directly on the screen. It outlines the main components of a touch screen, including the panel sensor, controller, and driver software. The document also describes several types of touch screen technologies and their workings. It lists some common uses of touch screens and notes both advantages like direct interaction and ease of use, as well as disadvantages such as potential fatigue and cost.

1. Touch Screen
Disusun oleh:
Didi Santoso
12111019
12.2B.14

2. Touch screen
The touch screen is a computer input
device
that works with the touch screen using a
finger or digital pen.
Touch-screen interface, where users operate
the computer system by touching a
picture or writing on the screen itself, is the
easiest way to operate a computer and are
increasingly used in various applications.

3. Components
Panel touch screen sensor
Located in exterior and generate electric current in place getting
touch
Touch screen controller
connective peripheral between panel sensor with peripheral of
computer to process the touch.
Driver software
translates the data into mouse movement,
enabling the sensor panel to function like a mouse,

4. How to work touchsreen

5. Types of touch screen
Capacitive overlay
This type have strong endurance and also clear
appearance.
Guided acoustic wave
It works by transmitting acoustic waves through a layer
of glass is placed on the display screen.
Resistive overlay
Superior in durability, especially against the harsh
treatment and at an affordable price.

6. Infrared Scanning
In [screen/sail] frame there are overall light dioda and photo
transistor detecting the loss of light and transmit signals that
identify co-ordinate of x and y.
Near field imaging (NFI)
This type uses a tool or a sophisticated touch detection circuit
for detecting a touch
Surface acoustic wave
Works by sending acoustic waves through the glass panel that
is equipped with multiple transducers and reflectors.

7. Usage
Public information system
System of a restaurant or retail
Supermarket
Computer-based Training

8. Advantages
 There is control and direct interaction between
the senses of sight and sense
of touch(input and output are on the same location)
 The ability to enter and monitor data quickly
because of its use easy, is not required too much user
training to operate the touch screen system
Only valid options and likely to be accepted that can
be displayed
 Easily accepted by users
 No need for the user memory

9. Disadvantages
 The amount of the cost of developing a touch
screen system as a technology recently
used in manufactured goods in bulk
 Requires additional time in the process
of programming
 Less flexible to some kind of specific input
 Errors in the displayed image will cause an
error operation
 Perceived fatigue due to repeated close to the screen
 Fingers often covers the visual display screen
 Need for new methods in programming the device fine

10. THANK
YOU!!!