LMR4769EW-WCB DENSITRON, LMR4769EW-WCB Datasheet - Page 55
LMR4769EW-WCB
Manufacturer Part Number
LMR4769EW-WCB
Description
LCD MODULE, 240X320, BLUE
Manufacturer
DENSITRON
Datasheet
1.LMR4769EW-WCB.pdf
(108 pages)
Specifications of LMR4769EW-WCB
Lcd Display Type
STN
Pixel Size (h X W)
0.34mm X 0.34mm
Display Mode
Transflective
Interface Type
Serial
Viewing Area (h X W)
92.14mm X 120.14mm
Supply Voltage
32V
External Depth
15.6mm
External
RoHS Compliant
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
Backlighting Colour
Blue
Pixel Pitch (h X W)
0.36mm X 0.36mm
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4: FUNCTION DESCRIPTION
4.1.3
50
(1) Screen configuration
(2) Display address incrementation
Screen Configuration
The basic screen configuration of the S1D13700 consists of a text or graphics screen and an overlapping
graphics screen. The graphics screen uses at least eight times as much display memory as the text screen.
Figure 4-4 schematically shows the relationship between the virtual and physical screens.
The S1D13700 sequentially increments the display address in the X direction from the screen origin
(home position) in the same way as a raster scan CRT. When the display address is incremented until the
number of addresses equals C/R, one line of data is read from display memory. Next, to read the second
line of data when in graphics mode, the S1D13700 starts from the address incremented by the distance
equal to the address pitch (AP) from the address of the screen origin (SAD), then repeats the same
operation as described above for the first line.
Conversely, in text mode the S1D13700 repeats the same operation as described above for the first line
until the display address for one character is completed. (Character code is read from the same area, and
data is read out in order of R0–R15 of the character generator.) (See Figure 4-2 “Example of character
generator definition” on page 45.)
Y
X
(0, 0)
Figure 4-4 Relationship between virtual and physical screens
0000H
(0, YM)
Display
screen
(X, Y)
0800H
C/R
EPSON
(XM, 0)
A/P
(XW, YM)
47FFH
07FFH
(XM, YM)
Graphics
table
Character
table
S1D13700 Technical Manual
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