Panasonic EB-X700 Service Manual page 23

4.6.9. Main LCD Module
The main LCD module has 176 x 208 pixels TFT display with 65K colour resolution. The Application processor provides 16-bit
interface for RGB pixel data transfer and a 3-wire (LCD-SCL, LCD-SDO and MAINLCD-CS/GPIO12) serial interface (McBSP3)
for the module register settings.
The backlighting for the main LCD module is provided by +13 V DCDCOUT voltage of Companion IC, which has an on/off
function programmed by an I2C link provided by the Modem processor.
The partial display mode is supported by the main LCD module to reduce the power consumption of the display.
Shown below is of all four configurations the LCD driver is capable.
The main LCD module can be set to standby mode by programming the main LCD register to turn-off/reset mode for the best
power savings whenever it is not in use.
MASKS1
non-display
MASKE1
MASKS2
non-display
MASKE2
PROVISIONAL ISSUE
A
33.26 ACTIVE AREA
39.90
Figure 4.7: Main LCD Dimensions
MASKS1
non-display
MASKE1
display
MASKS2 : FFh
MASKE2 : FFh
Figure 4.8: LCD Module Standby Mode
0.063
R G B
display
MASKS1
non-display
MASKE1
MASKS2 : FFh
MASKE2 : FFh
– 4-12 –
0.189
MASKS1
display
non-display
MASKE1
MASKS2 : FFh
MASKE2 : FFh
display
display