Flat Panel Lvds Interface (Jili) Connector; Display Power Considerations - Kontron speedMOPSlcdCE User Manual

Flat Panel LVDS Interface (JILI) Connector

8.3
The interface for the LCD Panel is available through Connector J1 (40 pins) on the bottom side of
the board. To find the location of the LCD Panel interface connector, please see the Appendix E:
Connector Layout chapter.
This connector represents the JILI interface (JUMPtec Intelligent LVDS Interface). The
implementation of this subsystem complies with the JILI Specification from Kontron Embedded
Modules GmbH. This supports the JILI3 implementation. A variety of cables for different display
types are available from Kontron. Please refer to the actual cable list on the Kontron Web site for
part numbers and cable names. A detailed description of the JILI interface standard also is
available in a separate document JILIM???.PDF. The three question marks represent the documents
revision number. You can download this document from the Kontron Web site, or contact your local
Kontron technical support to receive it.

Display Power Considerations

8.4
When using a LCD Panel, additional voltages may be required to drive the display's logic and to
supply the backlight converter and the contrast voltage.
The display logic may require +5V for standard or +3.3V for low-power LCDs. Contrast voltages for
passive displays are normally very different and can range from –30V to +30V. Backlight converters
usually are +5V or +12V types. When using a Kontron JILI cable, you do not need to determine the
configuration. Display logic voltage and contrast voltage come pre-configured on the JILI cable. On
occasion, the backlight voltage has to be adjusted on the cable.
Even though the speedMOPSlcdCE also is available as a +5V-only board, you need to supply the
+12V for the backlight converter when using such a converter type.
The onboard 3.3V-circuitry of the speedMOPSlcdCE and the +3.3V logic voltage of low-voltage
panels are powered by separate voltage regulators. The one for the LCD is mounted on the JILI
adapter cable.
Graphic Interfaces 22
KONTRON
speedMOPSlcdCE User's Guide