Operation Manual
EL320.256-FD6 Display
Beneq Oy
Olarinluoma 9
Tel. +358 9 7599 530
VAT ID FI19563372
FI-02200 Espoo
Fax +358 9 7599 5310
www.beneq.com
Finland
www.lumineq.com
Date: February 13, 2017
Document number: ED000814C
Page | 7
4
Display features
4.1
Low power mode
The power consumption of the display is possible to be reduced typically to 3 W by using the
low power mode. This mode is selected either with the _LP jumper (PS1/3) or temporarily
with the _LOWPOW control input (J2/4). The _LP jumper overrules the control input.
Low power mode is selected when the _LP jumper is set or the _LOWPOW input is pulled
LOW. When _LP is open and _LOWPOW is HIGH of left disconnected, the display has its
normal brightness. This function slightly reduces the contrast and average brightness of the
display.
4.2
Two-bits-parallel
For reduction of data clock frequency, it is possible to input the data of two pixels per pixel
clock. This feature is selected with the DCONFIG jumper (PS1/2). If the jumper is set, data
for even columns is input in VID and data for odd columns is input in TVID. If the jumper is
open, data is input normally to VID only.
4.3
Brightness control
The brightness of the display can be adjusted from below 10% up to full brightness by a 50
kΩ external logarithmic potentiometer between the LCa and LCb control inputs (J2/1 and /2).
The control function is achieved by sinking a small current from LCa to LCb (when open, the
voltages are at 5 V and 0 V respectively).
If the two inputs are left disconnected, the brightness is at its maximum level.
4.4
Self-test
The operation of the display can be easily tested using the two self-test features.
When the SELFEST jumper (PS1/4) is set, the video data at VID and TVID are displayed
asynchronously without the use of any timing signals.
When only supply voltages without any video data are input, the display starts scanning with
all pixels except the leftmost half of the topmost row on.