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TFT Displays
TFT Displays

Community forum and FAQ on TFT displays by Displaytech


TFT Displays



I understand that the DT024CTFT-TS has a back-lighting system of three LEDs wired in series which requires +9.6V at a constant current If=20 mA mode of operation. Our system has maximum voltage of 5V. 

1. Do you have a similar LCD (Size and Pins) that uses lower voltage for the backlight LEDs?

2. Will the current LED be able to run on lower voltage of 5V and 20 mA?

3. Any suggestions on how to DC-to-DC step-up the 5V to 10V? 

Thanks a lot for your help.


Sarah Horner
Community Moderator

What initialization steps are required when running the DT018ATFT in RGB mode?

For RGB, there is no initialization code to make this work out of the box, just pin configuration.

For MCU and RGB:

The IM[1:0] bits are used to set the MCU interface to either 16 or 18 bit (01 or 11). IM2 selects either Serial (0) or parallel (1) MCU interface. So for example, IM[2:0] = 011 would mean the MCU interface is running in 18-bit serial mode.

The RCM1 bit is used to select either the MCU (0) or RGB (1) interface modes (for writing display data to frame memory).

If the RGB interface mode is selected (RCM1 =... (More)

Library supporting DT024CTFT code sample

There's sample code posted on DT024CTFT webpage and it references numerous other C source and header files.  Are these available and if so, where?  I did a quick Google search and didn't find something that looks like Microchip Graphics Library with the references in the code sample.

DT035BTFT-PTS2 touch I2C interface

Looking through the datasheet for the DT035BTFT-PTS2, the drawing on page 4 makes it look as though the capacitive touch I2C interface is 1.8V logic.  However, the touch controller (FT5x46) datasheet says the touch controller operating voltage is up to 3.6V.  Can the capacitive touch I2C interface on the DT035BTFT-PTS2 therefore be run at 3.3V so I can avoid a level translator?