Panasonic EBX70 - CELL PHONE, Service Manual

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TECHNICAL DESCRIPTION
PMCD030901C8 Section 4 Issue 1
Service Manual – 15 – Revision 0
4.4.3 LCD Modules
The handset has two displays forming a single module. The main display is positioned inside the clamshell of the handset
while the sub display is mounted on the outside of the top half of the handset.
The Main LCD module consists of a Transmissive TFT colour display driven by a chip-on-glass driver connected to the LCD /
Camera interface.
The display has 132 x 176 pixels which can be used to display chinese characters in addition to different font sizes.
The display driver has its own internal display RAM.
Figure 4.7: Main LCD Dimensions
The Sub-LCD module is a passive Film SuperTwist Nematic (FSTN) monochrome display which is physically part of the main
display module but has its own chip-on-glass driver IC. This driver is connected to the microwire interlace.
Figure 4.8: Sub-LCD Dimensions
4.4.4 Camera Module
The camera module is a CMOS CIF sensor type. It is connected to the device via an interface IC and provides
output in RGB565 format.
Automatic Light Control (ALC) and Auto White Balance (AWB) is built in to the camera module.
4.4.5 Interface IC
The ROHM Interface IC is used to control communication between the IC and:
• Main LCD
• Camera module
It is also used to provide PWM brightness control for the red, green or blue backlight for the sub-LCD, and PWM brightness
control for the photo-light.
38.016 42.2
0.01
0.206
View Area
Effective Area
0.01
0.071
10691-1
28.512
33.6
All dimensions are in
millimetres (mm)
132 x 176 Pixels
(X70)
R
R
G
G
B
B
R
R
5.6 10.5
0.015
0.185
View Area
Effective Area
0.015
0.185
10693-1
19.2
25.6
All dimensions are in
millimetres (mm)
96 x 28 Pixels
(X70)