NL128102AC20-07 Renesas Electronics America, NL128102AC20-07 Datasheet - Page 17

• Manufacturer Part Number: NL128102AC20-07
• Manufacturer: Renesas Electronics America

Specifications of NL128102AC20-07

• Lead Free Status / Rohs Status: Supplier Unconfirmed

EXPANSION FUNCTION
HOW TO USE EXPANSION FUNCTION AND SCREEN IMAGE
display data can expanded to 1.6 times vertically and horizontally, VGA screen image can be displayed fully
on the screen of XGA resolution.
horizontal direction is possible by setting input CLK frequency which is equivalent to the magnification. It is
necessary to make this CLK outside of this LCD module.
to most suitable frequency. And when DE function is used, HD and VD become default. Please adjust the
display to the best position by DE signal.
The followings show display magnifications for each mode.
note 1 : The horizontal magnification multiples the input clock (CLK).
Example :
Expansion mode is a function to expand screen. For example, VGA signal has 640 480 pixels. But, if the
This LCD module has the function of expanding vertical direction as shown in Table 1. And expanding
DISPLAY IMAGE of after two pages is display example, when DE function is default and HD and VD are set
Please adopt these modes after evaluating display quality, because of becoming bad display in some cases.
Input display
In case of SXGA, SVGA and PC-9801, CLK frequency can be decided as follows.
SXGA
SVGA
Input CLK = system CLK
VGA TEXT
PC-9801
SXGA
SVGA
NTSC
XGA
VGA
PAL
: (system CLK (107.5 MHz))
: (system CLK (40.0 MHz))
(Vertical 280 2)
(Vertical 240 2)
horizontal magnification
Resolution
1280
1024
800
640
720
640
1.6 = 64.0 MHz
1.0 = 107.5 MHz
1024
600
480
400
400
768
640
640
Vertical
1.25
1.6
2.0
2.5
2.5
4.0
3.6
1
Magnification
NL128102AC20-07
Horizontal note 1
1.25
1.6
2.0
1.6
2.0
2.0
2.0
1
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