This document summarizes a study on touch screen technology. It begins with an introduction to touch screens and their basic functions. It then provides a block diagram and overview of the major components of a touch screen, including the touch sensor, controller, and software driver. The document discusses and compares the four main types of touch screen technologies: resistive, capacitive, surface acoustic wave, and infrared/optical. It provides examples of current and potential future applications of touch screen technology. It concludes by noting that while touch screens offer advantages like ease of use, they can also have drawbacks such as reduced visibility and lack of tactile feedback.
A touch screen is an electronic visual display that can detect the presence and location of a touch within the display area.
Touch screen can also sense other passive objects such as stylus.
The Screens are sensitive to pressure ; a user interacts with the computer by touching pictures or words on the screen .
A basic touch screen has three main components :
Touch sensor
Controller
Software driver
That is touch screen technology as everything (laptop,desktop,mobiles,ATM machine) each and everything can be used by touch.so how it works.Take a tour of uploaded ppt.
A touch screen is an electronic visual display that can detect the presence and location of a touch within the display area.
Touch screen can also sense other passive objects such as stylus.
The Screens are sensitive to pressure ; a user interacts with the computer by touching pictures or words on the screen .
A basic touch screen has three main components :
Touch sensor
Controller
Software driver
That is touch screen technology as everything (laptop,desktop,mobiles,ATM machine) each and everything can be used by touch.so how it works.Take a tour of uploaded ppt.
It was the touch screens which initially created great foregone are the days when you have to fiddle with the touch screens and end scratching up. Touch screen displays are ubiquitous worldwide. Frequent touching a touchscreen display with a pointing device such as a finger can result in the gradual de-sensitization of the touchscreen to input and can ultimately lead to failure of the touchscreen. To avoid this a simple user interface for Touchless control of electrically operated equipment is being developed. Elliptic Labs innovative technology lets you control your gadgets like Computers, MP3 players or mobile phones without touching them. A simple user interface for Touchless control of electrically operated equipment. Unlike other systems which depend on distance to the sensor or sensor selection this system depends on hand and or finger motions, a hand wave in a certain direction, or a flick of the hand in one area, or holding the hand in one area or pointing with one finger for example. The device is based on optical pattern recognition using a solid state optical matrix sensor with a lens to detect hand motions. This sensor is then connected to a digital image processor, which interprets the patterns of motion and outputs the results as signals to control fixtures, appliances, machinery, or any device controllable through electrical signals.
touch screen technology contains some limitations with it, it is fast, accurate, user friendly and fun to operate .It is being widely accepted. With some modifications, it can completely replace mouse and keyboard completely in the near future.
It was the touch screens which initially created great foregone are the days when you have to fiddle with the touch screens and end scratching up. Touch screen displays are ubiquitous worldwide. Frequent touching a touchscreen display with a pointing device such as a finger can result in the gradual de-sensitization of the touchscreen to input and can ultimately lead to failure of the touchscreen. To avoid this a simple user interface for Touchless control of electrically operated equipment is being developed. Elliptic Labs innovative technology lets you control your gadgets like Computers, MP3 players or mobile phones without touching them. A simple user interface for Touchless control of electrically operated equipment. Unlike other systems which depend on distance to the sensor or sensor selection this system depends on hand and or finger motions, a hand wave in a certain direction, or a flick of the hand in one area, or holding the hand in one area or pointing with one finger for example. The device is based on optical pattern recognition using a solid state optical matrix sensor with a lens to detect hand motions. This sensor is then connected to a digital image processor, which interprets the patterns of motion and outputs the results as signals to control fixtures, appliances, machinery, or any device controllable through electrical signals.
touch screen technology contains some limitations with it, it is fast, accurate, user friendly and fun to operate .It is being widely accepted. With some modifications, it can completely replace mouse and keyboard completely in the near future.
Touch screen technology | touch screen in moti nagar |rstrainings4
Touch screen Technology is widely used in moti nagar, through this junior scientists are widely reforming from the place called moti nagar, Erragadda, Hyderabad.
Study of Various Touch Screen TechnologiesSantosh Ankam
Study of different types of touch screen technologies, their history, advantages, disadvantages, working, functionalities, comparison, examples, components, hardware, explanations, future scope, pro and cons.
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Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
1. STUDY OF
TOUCH SCREEN
TECHNOLOGY
Presented By :
Indranee Shyam (EC/12/06)
Sudesna Mukherjee (EC/12/19)
Susmita Mahato (EC/12/21)
Guided By :
Mr. SYED
SAMSHER ALI
(H.O.D of ECE Deptt.)
3. Why Touch Screen?
Locates the coordinates of a user’s touch
within display area.
Refers to touching the display of the device
with a finger .
Based either on LCD (Liquid Crystal
Display) or CRT(Cathode Ray Tube)
technology that accepts direct onscreen
input.
The father of touch screen technology is
Dr. Samuel Hurst ,in 1971,which is called
“ELO graph”.
The Nokia 7710 is the first touch screen
mobile phone.
5. Major Components
Touch Sensor : Glass panel with a touch
responsive surface having an electrical current or
signal going through it and causes a voltage or
signal change which is used to determine the
location.
Controller : Small PC card connects between the
touch sensor and the PC.
Software Driver : Software allows the touch
screen and computer to work together.
6. Types of Touchscreen
Technologies
Resistive
Capacitive
Surface Acoustic Wave
Infrared / Optical Touch
Screen
Four different technologies used to make
touch screens today:
7. Resistive Touchscreen
1) Composed of two layers of
conductive material which is
coated with a transparent metal
oxide coating of Indium Tin Oxide
(ITO)
2) Uses both the upper and lower
layers in the touch screen
"sandwich" to determine the X and
Y coordinates.
.
8. Capacitive Touch Technology
1) Glass panel with conductive layer
(Indium Tin Oxide).
2) When the panel is touched, a small
amount of charge is drawn to the
point of contact .
3) Two types :
a) Surface
b) Projected
9. Surface Acoustic Wave Touch Screen
1) Surface Acoustic Wave (SAW) technology.
2) Ultrasonic waves across the surface.
3) Piezoelectric transducers and receivers along the sides of the
monitor’s glass plate to create an invisible grid of ultrasonic
waves on the surface.
10. Infrared / Optical Touch
Screen
1) Infrared monitors use IR
emitters and receivers to
create an invisible grid of
light beams.
2) Uses infrared LEDs and
matching photodetectors
across the screen.
3) When an object interrupt
the invisible infrared light
beam, the sensors are able
to locate the touch point.
11. Touch Screen Technology Comparison Chart
Resistive Infrared SAW Capacitive
Touch
Resolution
High High Average High
Clarity Average Good Good Good
Operation Finger or Stylus Finger or Stylus Finger or Soft-
tipped Stylus
Finger only
Durability Can be
Damaged by
Sharp Objects
Highly Durable Susceptible to
Dirt and
Moisture
Highly durable
12. Today’s Touch Screen tech put the world
at our fingertips
Present uses :
• Retails & Restaurants
• ATMs , Ticket Booking ,
Registration system
• Smart Phones , digital
camera , etc…
Future uses:
• Advanced hand sensing..
• Digital display of human DNA
structure
• Motion Sensor , etc ....
13. Drawback Of Touch Technology
Become less-visible.
Scratches on the screen that may cause
malfunction in some cases.
Unlike push-button and mouse, users will not feel
"click" when a user input a touch screen, thus
operation may become clumsy sometimes.
14. CLOSING THOUGHTS
User friendly , fast ,accurate , easy and fun to operate .
Information more easily accessible.
Widely accepted and modifying a little it can replace
the mouse and keyboard completely in near future.
15. References
Beyers , Tim "Innovation Series: Touch screen
Technology".
Larry K. Baxter (1996). “Capacitive Sensors”. John Wiley
and Sons.
http://en.wikipedia.org/wiki/Touchscreen
http://www.touchscreens.com/intro-anatomy.html
http://www.tvielectronics.com/Touch_Screen.html
http://www.slideshare.com/Touch_Screen Technology.html
