NJU6682 データシートの表示（PDF） - Japan Radio Corporation
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NJU6682 Datasheet PDF : 58 Pages
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NJU6682
3-9)Static Drive ON/OFF
This instruction turns ON the all pixels independent of the contents of the Display Data RAM. At this time, the contents of
Display Data RAM is not changed and kept. This instruction takes precedence over the “Normal or Inverse ON/OFF Set”
Instruction.
(R/W)
A0 RD WR D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
01
000000010
*
*
*
*
*
*
*D
* : Don’t Care
D=0:Normal Display
D=1:Whole Displplay Turns ON
If this Static Drive ON/OFF instruction is executed when Display OFF status, the NJU6682 will be in Power Save Mode.
The details about this Power Save Mode is descrived in it’s own section.
3-10)Partial Display
This instrcution devides display area into 40 unit with 4-common each, then display these required area which is
selected. Therefore, the duty will be low automatically, so that LCD driving voltage will be low. So, it is suitable when low
operating power is requied.
•Display Unit Construction
UNIT 0
UNIT 1
UNIT 2
UNIT 3
:
:
:
UNIT 36
UNIT 37
UNIT 38
UNIT 39
160-common
132-segment
When executing the Partial Display function, at first, it must be defined both the Top Unit Number of display area (the
Start Unit) and the number of the effective unit start from the Start Unit. And it is possible to set these definition as two
blocks. If setting the Start Unit of the 1st Block as “0” (0,0,0,0), and then if setting the Display Unit Number as “40”
(1,0,1,0,0,0), it means that to define the all unit of the Display, it becomes that all Display ON (1/160 Duty), and the
definition of the 2nd Block will be invalid. And when Partial Display instruction is executed, the duty is changed to
optimum condition automaticaly, but LCD Driving Voltage and Bias Voltage aren’t changed at all. Therefore, before
execution of Partial Display instruction, “Driver Output OFF” instruction must be done, then execute the instruction Bias
Set, Voltage Converter Multiple Select, and EVR Resister Set to reset each status with execution of this Partial Display
instruction.
(Notes)
•The Start Unit of the 1st Block must be less than the Start Unit of the 2nd Block.
•Don’t overlap the 1st Block and the 2nd Block.
•The Start Unit of the 1st Block must not be more than 39.
•The all Display Unit Number (the sum of the 1st Block Unit Number and the 2nd Block Unit Number) must not
be more than 39.
•According to a setting, the area is made from the 1st Block to the 2nd Block may be empty, but the Y Address
of the Display RAM is continuous.
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