HM17CM256 HYNIX [Hynix Semiconductor], HM17CM256 Datasheet - Page 43

• Manufacturer Part Number: HM17CM256
• Description: 128XRGBX82 OUTPUT LCD DRIVER IC with built-in RAM
• Manufacturer: HYNIX [Hynix Semiconductor]

(28) PARTIAL DISPLAY FUNCTION
lower LCD driving voltages, and that can drive the LCD panel with lower power consumption.
HM17CM256 can realize the partial display at graphic display area on LCD panel.
Partial display is used with lower duty than normal state at driving.
And so, HM17CM256 can drive the LCD panel with lower bias ratio, lower boosting times and
This function is suitable for calendar or clock display at mobile information apparatus.
The next sequence should be followed carefully to realize partial display function.
PARTIAL DISPLAY IMAGE
built-in power source OFF(DCON=”0”, AMPON=”0”)
HYUNDAI
LCD DRIVER
Low Power and
Low Voltage
Built-in power source ON(DCON=”1”, AMPON=”1”)
Normal display
Setting the display-related function
Setting the power supply circuit
DISPLAY OFF(ON/OFF=”0”)
Display ON(ON/OFF=”1”)
Partial display state
Any display states
WAIT
WAIT
LCD DRIVER
partial display
boosting coefficient
electric volume
bias ratio
duty ratio
display start line setting
display start command
HM17CM256
and so on.
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