Fig 5 Display Circuit - Nokia NSB-7 Series Service Manual

NSB-7
UI Module
Display Circuit
The display circuit includes LCD module UX7 and two capacitors. The LCD module is COG
(Chip on Glass) technology. The connection method for chip on the glass is ACF, Adhesive
Conductive Film. The LCD module is connected to the UI board with STAX elastomer.
Capacitors are placed on the PCB.
The display driver includes HW-reset, voltage tripler or quadrupler which depends on
temperature, temperature compensating circuit and low power control. Driver includes
84x48 RAM memory which is used when some elements are created on the display. Ele-
ments can be created with software. Driver doesn't include CG-ROM. One bit in RAM is
the same as one pixel on the display.
GENSIO(1:0)
ROW5
LCDEN
LCDRSTX
Page 12
Figure 5: Display Circuit
ãNokia Mobile Phones Ltd.
PAMS Technical Documentation
Issue 1 06/00