Specifications
39
3.1.2 Displays
Basic Specifications
The QVGA (320 x 240 dots) mode is supported for the terminal.
Table 3.2
Display specification 65,536 colors 2-way TFT (16 bpp, Red: 5 bits, Green: 6 bits, Blue: 5 bits)
X direction 240 dots
Display size
Y direction 320 dots
Contrast
• Can be set in the range of 1 to 9 (Default = 5).
• Can be set in application with ExtEscape()API function.
• Setup values can be modified in the Brightness properties.
Backlight brightness
A brightness of the backlight can be changed in the Control Panel.
• Setting can be made in one of nine grades for power source either when the power is provided
by an external power supply (by the dedicated AC adaptor via cradle) or when the power is
provided by the installed lithium-ion battery pack.
• Setting can be made in application by using ExtEscape()API function.
• If the brightness is set to 1 (minimum), the backlight is turned OFF.
• The default is 9 (maximum) when an external power source is used or 7 when lithium-ion
battery pack is used.
Backlight Auto Dimmer (Only effect when the terminal is powered by battery pack.)
The Control Panel can be used to set up whether or not the auto dimming function is used and the
waiting time until when dimming begins. Auto dimming is effect only when the power is provided
by the lithium-ion battery pack. It will not function when an external power supply is used.
• If the terminal is left over in idle state - absolutely no key input or touching on the touch panel
- while the power is turned on, the backlight will be automatically dimmed to save the power
after a given period of time has been elapsed.
• When the terminal is in the auto dimmed state, a press of key or a touching on the touch panel
will disable the auto dimming function to resume the brightness.
• While the auto dimming function has been set enabled, brightness can be set in one of eight
grades. The default is 3.
During the auto dimming function being set enabled, brightness cannot be set any brighter than
the brightness illuminated by the backlight. The defaults are “Enable the auto dimming function”
and “1 minute” for waiting time period until when the auto dimming function activates.