4d Systems 3.5" TFT Intelligent Display Module SK-35DT SK-35DT Data Sheet
Product codes
SK-35DT
4D SYSTEMS uLCD-35DT Display Module
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6. Module Features
The
uLCD-35DT
module
is
designed
to
accommodate most applications. Some of the
main features of the module are listed below.
main features of the module are listed below.
Display – 3.5” TFT Touch Screen
6.1.
The uLCD-35DT module is equipped with a 3.5”
TFT display. Details of the display are listed below:
Screen Size: 3.5” diagonal, 320x480 resolution,
65K colours
65K colours
Integrated 4-Wire Resistive Touch Screen
Screen Dimensions: 54.5 x 83.0 x 3.35mm
Viewing Area: 49.76 x 77.04mm
Pixel Pitch: 0.153(H) x 0.153(V)mm
Brightness: 220cd/m2
Contrast Ratio: 500:1
Viewing Angle Above Centre: 60 degrees
Viewing Angle Below Centre: 60 degrees
Viewing Angle Left of Centre: 70 degrees
Viewing Angle Right of Centre: 70 degrees
Viewing Direction: 6 O'clock
7 LEDs for Backlighting
Note: The Displays used are the highest rated
‘Grade A’ Displays, which allow for 0-4 defective
pixels. A defective pixel could be solid Black
(Dead), White, Red, Green or Blue.
‘Grade A’ Displays, which allow for 0-4 defective
pixels. A defective pixel could be solid Black
(Dead), White, Red, Green or Blue.
DIABLO16 Processor
6.2.
The module is designed around the DIABLO16
Graphics Controller from 4D-Labs.
The DIABLO16 is a smart Controller and the
interface to the TFT- LCD displays is almost plug-n-
play.
All of the data and control signals are provided by
the chip to interface directly to the display.
Powerful graphics, text, image, animation and
countless more features are built right inside the
chip.
The data sheet for the processor is available from
the
countless more features are built right inside the
chip.
The data sheet for the processor is available from
the
“DIABLO16-Processor-Datasheet-REVx.pdf”
Audio
6.3.
Audio playback support in the DIABLO16 Processor
enables the uLCD-35DT module to play audio WAV
files stored in the micro-SD memory card. PWM
and an on-board audio amplifier with 8Ω speaker
ensure ample audio output capability. A simple
instruction enables the user to play/pause/stop
audio files while continuing the execution of the
user application code, such as display updates,
touch recognition, communications, etc. The audio
system also allows real time pitch change of audio
samples.
For a complete list of audio commands please
refer to the separate document titled:
“DIABLO16-4DGL-Internal-Functions.pdf”
Note: The on-board speaker is a small device
designed to project into an audio cavity. It is not
very loud by itself. To enable louder audio, it is
recommended to use a larger external 8Ω speaker.
See the ‘Hardware Interface’ – ‘System Pins’
section for more information.
designed to project into an audio cavity. It is not
very loud by itself. To enable louder audio, it is
recommended to use a larger external 8Ω speaker.
See the ‘Hardware Interface’ – ‘System Pins’
section for more information.
SD/SDHC Memory Cards
6.4.
The module supports micro-SD memory cards via
the on-board micro-SD connector. The memory
card is used for all multimedia file retrieval such as
images, animations and movie clips. The memory
card can also be used as general purpose storage
for data logging applications. Support is available
for off the shelf micro-SD and high capacity HC
memory cards (4GB and above).
Note: A microSD card capable of SPI is a
requirement for all 4D Systems’ display modules
powered by Goldelox, Picaso or Diablo16
Processors. If a non-SPI compatible card is used, it
will simply fail to mount, or may cause
intermittent issues resulting in lock ups and
crashing of the application. Please refer to the 4D
Systems website for microSD cards offered by 4D
Systems.
requirement for all 4D Systems’ display modules
powered by Goldelox, Picaso or Diablo16
Processors. If a non-SPI compatible card is used, it
will simply fail to mount, or may cause
intermittent issues resulting in lock ups and
crashing of the application. Please refer to the 4D
Systems website for microSD cards offered by 4D
Systems.