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LITEMAX LF1745
Sunlight Readable 17" LCD Display
(1st Edition 4/9/2004 )
All information is subject to change without notice.
LITEMAX Electronics Inc.
4F, No.131-3, Lane235, Bau-chiau Rd.,
Shin-dian City, Taipei County, Taiwan R.O.C.
Tel : 886-2-8919-1858
Fax: 886-2-8919-1300
Homepage: http://www.litemax.com.tw
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Contents
Introduction and Overview...3
General Specifications...4
Functional Block Diagram
Optical Characteristics
Pixel format image.
Electrical characteristics...9
Absolute Maximum Ratings
Connectors
Signal Pin
Signal Description
Signal Electrical Characteristics
Interface Timing
Timing Characteristics
Timing Definition
Power Consumption
Power ON/OFF Sequence
Backlight Characteristics...17
Signal for Lamp connector
Reliability and Lifetime...18
Mechanical Characteristics...19
Litemax LI3601 Inverter...20
LF1745 Page 2
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INTRODUCTION AND OVERVIEW
This is a product specification that specifies form, fit, and function of the 17" TFT LCD monitor and its
options. The LF1745 products are a family of high bright LCD monitors intended for use in a variety of
industrial and commercial applications. Some of these applications include automatic teller machines (ATMs),
fuel dispensing systems, ticketing and information kiosks, and intelligent vending machines. The LCD panel for
LF1745 has a particularly fast response time of 16ms and consequently very well suited for video applications.
The LF1745 is a 17" active matrix TFT LCD with a native resolution of 1280X1024. It has a typical
luminance of 1000 nits with a +12VDC input. The video interface is through a standard 15 pin analog input with
an integrated On-Screen Display (OSD).
OUTLINE
STRUCTURE AND PRINCIPLE
LF1745 module is composed of the driver LSIs for driving the TFT (Thin Film Transistor) array with an
amorphous silicon thin film transistor liquid crystal display (a-Si TFT LCD) panel structure and a backlight.
The a-Si TFT LCD panel structure is injected liquid crystal material into the narrow gap between a TFT array
glass substrate and a color filter glass substrate.
RGB (Red, Green, and Blue) data signals from a source system are modulated into a form suitable for active
matrix addressing by the onboard signal processor and sent to the driver LSIs which in turn address the
individual TFT cells.
Working as an electro-optical switch, each TFT cell regulates transmitted light from the backlight assembly
when worked by the data source. Color images are created by regulating the amount of transmitted light through
the array of red, green and blue dots.
APPLICATIONS
Kiosk, Public, Health Application, LCD TV, POI, Ticketing, Advertising, Gaming, Industrial Computing, Signage...
FEATURES
wide viewing angle
Fast response time
High luminance
High contrast
Wide color gamut
Luminance control
Small foot prints
LF1745 Page 3
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GENERAL SPECIFICATIONS
Display area 337.92 (H) x 270.336 (V) mm
Drive system a-Si TFT active matrix
Display colors 262k
Number of pixels 1280 (H) x 1024 (V) pixel
Pixel arrangement RGB (Red, Green, Blue) vertical stripe
Pixel pitch 0.264 (H) x 0.264 (V) mm
Module size 358.5(H) x 296.5 (V) x 29(D) mm
Weight 1670 g (typ.)
Contrast ratio 500:1 (typ.)
Viewing angle At the contrast ratio 10:1
Horizontal: Left side 80
