Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Touch Panel Driver
Post: #1


Touch Panel Driver
The objective of the project is to design a driver for a touch panel such that it takes the inputs from the touch panel and responds accordingly as per the input performing the action given to it.
A touch panel is a display which can detect the presence and location of a touch within the display area. The term generally refers to touch or contact to the display of the device by a finger or hand. Touch panel can also sense other passive objects, such as a stylus. However, if the object sensed is active, as with a light pen, the term touch panel is generally not applicable. The ability to interact directly with a display indicates the presence of a touch panel. The touch panel has two main attributes. First, it enables you to interact with what is displayed directly on the screen, where it is displayed, rather than indirectly with a mouse or touchpad. Secondly, it lets one do so without requiring any intermediate device, again, such as a stylus that needs to be held in the hand. Touch panels are of different types some of them are resistive touch panel surface acoustic wave touch panel capacitive touch panel etc. A resistive touch panel is composed of several layers. The most important are two thin metallic electrically conductive and resistive layers separated by thin space. When some object touches this kind of touch panel, the layers are connected at certain point; the panel then electrically acts similar to two voltage dividers with connected outputs. This causes a change in the electrical current which is registered as a touch event and sent to the controller for processing. A capacitive touch panel is coated with a material, typically indium tin oxide, that conducts a continuous electrical current across the sensor. The sensor therefore exhibits a precisely controlled field of stored electrons in both the horizontal and vertical axes - it achieves capacitance. The human body is also an electrical device which has stored electrons and therefore also exhibits capacitance. Capacitive sensors work based on proximity, and do not have to be directly touched to be triggered. It is a durable technology that is used in a wide range of applications including point-of-sale systems, industrial controls, and public information kiosks. It has a higher clarity than Resistive technology, but it only responds to finger contact and will not work with a gloved hand or pen stylus. Capacitive touch screens can also support Multitouch. A good example of this is Apple Inc.'s iPhone and iPod touch.
The system consists of a microcontroller which is responsible for the input data scanning and also for the generation of output signals for the control devices, touch panel which senses the object coming in contact with it, control devices such as relay etc. The microcontroller is connected with the touch panel through the port pins when the power is switched on the microcontroller starts scanning the input ports to check whether a object is in contact with the touch panel when an object comes in contact with the touch panel, it sends the location of the object through the output pins and this is scanned by the microcontroller upon scanning the microcontroller will get a location on the touch panel and depending on the point of contact the microcontroller generates output signals to the powered devices connected to the microcontroller through a relay thus we can control the powered devices by touch panel.
Such displays can be attached to computers or, as terminals, to networks. They also play a prominent role in the design of digital appliances such as the personal digital assistant (PDA), satellite navigation devices and mobile phones. Touch panels are popular in heavy industry and in other situations, such as museum displays or room automation, where keyboards and mouse do not allow a satisfactory, intuitive, rapid, or accurate interaction by the user with the display's content.
Devices used
Touch panel,
Keil compiler,
Relays etc.
Post: #2
Post: #3
He human body is also an electrical device that stored electrons and therefore also exhibits capacitance. Work based on the capacitive proximity sensors and you can not touch it can be run directly. It is a permanent technology that is used in a wide range of applications, including systems at points of sale, industrial control, and public information kiosks.
Post: #4
And associated controlled with the team through the contact pins when you turn on the power port on the controller starts scanning the input ports to check whether the goal is in contact with the touch pad when an object comes in contact with the touch pad.

Important Note..!

If you are not satisfied with above reply ,..Please


So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Popular Searches: multitouch, driver development project ideasting, about protection panel pdf, logitech spacemouse driver, driver circuit vcsel, webarrow mirror driver, school bus driver in new york,

Quick Reply
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  GSM based Control Panel for Agricultural and Domestic Water Pumps seminar addict 4 1,690 08-09-2016 10:58 AM
Last Post: ijasti
Last Post: computer girl
  touch screen based projects idea computer science crazy 3 1,838 09-03-2012 09:56 AM
Last Post: seminar paper
  touch screen based projects project topics 1 4,850 21-01-2012 11:09 AM
Last Post: seminar addict
  Dot/Bar Display Driver smart paper boy 0 470 30-08-2011 10:12 AM
Last Post: smart paper boy
  Analysis of Real-World Driver’s Frustration smart paper boy 0 338 24-08-2011 11:13 AM
Last Post: smart paper boy
Last Post: seminar addict
  SOLAR AUTOMATIC PANEL smart paper boy 0 524 02-08-2011 04:37 PM
Last Post: smart paper boy
  Touch Screen Laptops smart paper boy 0 474 14-07-2011 12:17 PM
Last Post: smart paper boy
  Musical ‘Touch’ Bell smart paper boy 0 1,025 21-06-2011 09:50 AM
Last Post: smart paper boy