Author Topic: NHD 5.0 800480 resistive touch screen non-linearity  (Read 1620 times)

dfansler

  • Jr. Member
  • **
  • Posts: 26
  • Karma: 0
    • View Profile
NHD 5.0 800480 resistive touch screen non-linearity
« on: September 06, 2017, 10:45:28 AM »
I have a problem with the resistive touch display on the above display.  On the right end of the display, if I am measuring the resistance from top to bottom, it changes by 300 ohms (increasing from top to bottom).  Reading the horizontal position on the right edge should give the same value from top to bottom - instead the value increases.  This means that if I scale the value to be 800 on the right side, it will go from say 800 at the top to 850 at the bottom.

Is there a problem with the touch screen, or my logic?
Kind regards,
David

 

NHD‐3.5‐320240MF‐ATXL#‐T‐1 Touch Signal

Started by jmasamotoBoard TFTs

Replies: 1
Views: 4869
Last post February 05, 2016, 08:05:40 AM
by Paul_B
NHD-5.0-800480TF-ATXL#-T and NHD-5.0-800480TF-20 Controller Board No Touch?

Started by dfanslerBoard TFTs

Replies: 5
Views: 5187
Last post May 26, 2017, 11:10:57 AM
by Saurabh_B
NHD-7.0-800480EF-ASXV#-CTP - "Touch" stopped working on part of LCD

Started by coran21Board TFTs

Replies: 0
Views: 384
Last post October 19, 2018, 10:10:46 AM
by coran21
Shift position after "clear screen" instruction

Started by dreissBoard OLEDs

Replies: 5
Views: 6112
Last post September 18, 2015, 03:50:30 PM
by Saurabh_B
7.0" TFTs with capacitive Touch and 8080 interface availability?

Started by gdoraisaBoard TFTs

Replies: 1
Views: 4016
Last post June 30, 2016, 07:54:11 AM
by Saurabh_B