SLCD Controller Board
Low cost LCD Controller for embedded systems
using QVGA
with no special OS or Library needed on the host processor.
Flat panel technology is constantly changing. Use the SLCD to "write once, deploy on any panel" now and in the future.
Features include:
- Drives both passive (STN) and active (TFT) displays
- Controls either color or monochrome LCDs
- Software contrast control
- Ideal for constrained size applications: 3”x 4.5”,
0.3” thick
- Supports both 3.3V and 5V displays (using only 40mA)
- RS232 or CMOS level interface up to 115Kbaud
- User downloadable bitmaps with compression (512KB of flash
memory)
- Backlight power control
- Landscape or portrait mode
- Can be modified for specific OEM requirements
The SLCD controller allows an LCD graphics display to be accessed
as an intelligent serial device. Text can be written to the
display and graphic images shown by using high level commands.
An optional touch interface enables buttons to be defined on
screen which return a serial string when pushed. A beeper is
included for audible touch feedback and for alarms.
Containing a powerful 16 bit microprocessor, the Reach SLCD also has flash
memory, an LCD controller chip, beeper, and optional touch screen / button
interface. The on-board microprocessor code includes a graphics library, text
fonts, predefined bitmaps, and a command interpreter. The microprocessor serial
port is used to interface to the host system via digital or RS232 levels. User-defined
bitmaps can be stored in the flash memory via the serial port.
The board has connectors for different types of LCD displays. Passive or active,
monochrome or color displays up to 320x240 are supported at 8 bits color/pixel.
Adapter boards are used when the display connector is different from the board
connector.
Bitmaps to use for the display can be easily created on a PC in .BMP format
using any off-the-shelf graphics program, including Adobe Photoshop or even
Microsoft Paint. The images are then compressed and can be downloaded into
the SLCD flash memory using a supplied software utility. Once downloaded to
the flash memory, they can be displayed anywhere on the screen using a simple
high level command. These bitmaps can provide a modern looking interface, including
tabbed information pages and many different types of controls including radio
buttons, check boxes, and more.
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