S1D13305D00A EPSON [Epson Company], S1D13305D00A Datasheet - Page 86

• Manufacturer Part Number: S1D13305D00A
• Description: LCD Controller ICs
• Manufacturer: EPSON [Epson Company]

APPLICATION NOTES
16.5. Layered Display Attributes
S1D13305 series incorporates a number of functions for
enhanced displays using monochrome LCD panels. It
allows the display of inverse characters, half-intensity
A number of means can be used to achieve these effects,
depending on the display configuration. These are listed
below. Note, however, that not all of these can be used in
the one layer at the same time.
16.5.1. Inverse display
The first layer is text, the second layer is graphics.
1. CSRW, CSDIR, MWRITE
2. OVLAY: MX0 = 1, MX1 = 0
3. DISP ON/OFF: FP0 = FP1 = 1, FP1 = FP3 = 0.
80
Write is into the graphics screen at the area to be
inverted.
Set the combination of the two layers to Exclusive-
OR.
Turn on layers 1 and 2.
Local flashing
SAD1
Ruled line
Half-tone
Attribute
Reverse
AB
1st layer
MX1
0
1
0
1
0
0
0
0
1
Figure 65. Half-tone character and graphics
MX0
+
1
1
0
1
0
1
0
1
1
Figure 64. Layer synthesis
SAD2
Combined layer display
IV
ME
BL
RL
EPSON
2nd layer
EPSON
Yes, No
Error
LINE
LINE
menu pads and flashing of selected screen areas. These
functions are controlled by the OVLAY and DISP ON/
OFF commands.
16.5.2. Half-tone display
The FP parameter can be used to generate half-intensity
display by flashing the display at 17 Hz. Note that this
mode of operation may cause flicker problems with
certain LCD panels.
16.5.2.1. Menu pad display
Turn flashing off for the first layer, on at 17 Hz for the
second layer, and combine the screens using the OR
function.
1. OVLAY: P1 = 00H
2. DISP ON/OFF: P1 = 34H
IV
ME
BL
RL
1st layer display
EPSON
Yes, No
LINE
LINE
AB
Combined layer display
Half-tone
2ndt layer display
S1D13305 Series
Technical Manual
Error