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Epson Research and Development
Vancouver Design Center
S1D13503
Programming Notes and Examples
X18A-G-002-06
Issue Date: 01/01/30
8 GLOSSARY
13503
The S1D13503 LCD controller chip.
bank
In reference to display memory banking, a bank is a 64k byte block of display memory. Bank
0 represents the first 64k bytes of display memory, and bank 1 represents the second 64k
bytes.
color
A specific combination of red, green, and blue intensities.
display memory
Memory in which an image is stored for display by the S1D13503.
gray shade
A specific combination of white and black colors. For example, a lighter gray shade has more
white than black.
LCD
Liquid Crystal Display. The display device used by the S1D13503.
LCD controller
The device used to control the LCD display. The S1D13503 is an LCD controller.
LUT
Look-Up Table, or palette. The LUT treats the value of a pixel as an index into an array of
colors or gray shades.
panel
The circuitry and viewable area of an LCD display which supports a single image. LCD
displays may have one or two panels.
panning
The right or left movement of the viewport in a virtual display.
pixel
Picture Element. A pixel is seen as a dot on the display, and can be shown using one of
several different colors or gray shades. Combining pixels in a group creates an image.
power saving
A means of reducing the power consumption of the S1D13503.
register
A memory storage location to control a peripheral, such as the S1D13503.
scrolling
The up and down movement of the viewport in a virtual display.
S1D13503
The 13503 chip.
S5U13503B00C
The evaluation board for the S1D13503. The S5U13503B00C is an ISA board for a PC-
compatible computer.
viewport
The visible portion of a virtual display.
virtual display
An image, which is stored in display memory, that is larger than what the LCD display can
show. A virtual display supports panning and scrolling.
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