Planar LC1200R user manual Introduction, Basic Construction, LCD Display

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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.

2Basic Construction

2.1LCD 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

LC1200R User’s Guide 021-0183-00 Rev A

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Contents LC1200R High-Bright Monitor DC Power Input Requirements Display Cosmetics LCD Panel Physical Image Characteristics IntroductionBasic Construction LCD DisplayDisplay format WeightMechanical Front View Video Signal Connector DC Power Input ConnectorPhotodiode Connector Dimming Control ConnectorPower Supply LCD Controller BoardInverter Board Photodiode BoardEnvironmental Temperature and HumidityButton Board Shock VibrationShock Packaged Product Video Signal Requirements Signal FunctionsVideo Input Lines Video ParametersSynchronization TTL Allowable Signal Levels Mode Detection TTL Sync Pulse Signal LevelsColor Display Detection Rise and Fall TimesTiming and Frequency Video Signal On-Off SequencesVideo, Horizontal and Vertical Sync DC Power Input Lines DC Power Input RequirementsDC Input Voltage / Current User Controls Power On-Off SequencesLCD Controller Board Controls User Adjustments Flip and MirrorMax Bright Jumper Dimming Control Connector Pin Assignment and Performance Photodiode Board and Automatic Dimming ConnectorAutomatic Brightness Mode Manual Brightness Mode Typical monitor brightness vs. ambient is as followsMaximum Brightness Mode Monitor PerformanceDIM input, volts Monitor LuminanceDisplay View Angle Display UniformityDisplay Chromaticity Color Perceived ColorDisplay Cosmetics Regulatory Agency RequirementsRFI Emission Certification System Transient Disturbance RequirementsElectrostatic Discharge Electromagnetic Energy Susceptibility RequirementsDescription of Warranty ReliabilityRohs Compliance Design WorkloadSupport and Service Glossary of Terms LC1200R User’s Guide 021-0183-00 Rev a