LCD back-light inverter

this probably was the most tricky part so far. So when I tried the digitizer in the very begin of this project it was working fine even when I put the LCD panel between the digitizer and the digital pen (LCD was off). the tricky part was when I tried it again with powered panel, strange thing happened, the curser was shifting wiggling on the screen. the only idea came to my mind was that there is a magnetic field was affecting the wireless signal when the screen is on. I stripped the LCD as much as I can, but again still too much interference there. the only thing that I was able to remove more was the LCD back light, it was a CCFL based lamp not an LED one. this solved the problem, so I replaced it with LED light strip and it did the job. 

Multi port LCD driver

This LCD Driver was very helpful in this experiment. it is flexible and accept a wide range of LCD panels, also it support multi port type as input connections. generic and very easy to setup. figure out the pin connection between the LCD and the Driver was bit tricky. and the 1.2 mm pitch connection was too tiny to solder wires to it. flashed the driver with the most compatible software to my panel properties, and it is all ready now. 

Phase One

the initial part of my experiments is to discover the technical side of different forms of interaction with digital environment.I will start with the most common artmaking interaction form, the stylus display. the reason to start analysing this interaction form is to identify the technical processes that can reveal the actual artist-artwork relation during the artmaking process using this form of interface. the analysis process can help develop new forms of conversation with different technical base that employed the power of digital environment.

parts used in this project:

- electromagnetic sensor that will works as a pen position digitiser. 

- LCD panel that fit or close to the digitiser size (in my experiment it is 14.1" screen with 16:9 ratio). 

- LCD driver, in order to run and connect the panel I got a generic LCD Driver that I managed to wire it to the panel. the LED driver is accessible through HDMI port that transfer PC data to the panel.

- wires and PCB to make the connections.

Starting Point

As a part of my PhD research, I am starting an art project discovers the artist-artwork relation within digital environment.