LC1200R User’s Guide
021-0183-00 Rev A 4 of 29
1 Introduction This document defines the electromechanical parameters and operating characteristics for The
Planar Systems, Inc. LC1200R, Very High Bright, 12.1” Active Matrix Liquid Crystal Display (AMLCD)
based product. It is intended for operation as a component in a high ambient light, outdoor system.
The LC1200R has a scaleable video format capable of displaying a minimum of VGA (640 x 480)
through XGA (1024 x 768) input resolution.
The LC1200R can be driven directly from the standard analog video graphics adapter (VGA) output
on a personal computer (PC). It consists of a 12.1" viewable diagonal LCD panel with optical
elements, cold-cathode fluorescent backlight, backlight inverter board, and LCD controller board. A
tethered photodiode provides automatic brightness control. Cooling fans are provided to cool the
back of the LCD module. If used in direct sunlight, it is the system designer’s responsibility to provide
an enclosure that directs the airflow, across the front of the display. Two (2) chassis mounted
connectors at the rear provide for video signal and 12 V DC power input connections. The enclosure
is aluminum for added cooling and ease of installation.
2 Basic Construction 2.1 LCD Display
2.1.1
LCD Panel – Physical Image Characteristics
The LC1200R incorporates an matrix display with the following features:
LCD Size: 307.5mm [12.11in] diagonal
Active Area: 246.0mm [9.69in] by 184.5mm [7.26in]
Pixel Format: 800 (H) x 600 (V) (1 full color pixel = R + G + B dots)
Pixel Pitch: 0.3075mm [0.012in] horizontal x 0.3075mm [0.012in] vertical
Pixel Arrangement: R,G,B vertical stripe