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LITEMAX LF1548
Sunlight Readable 15" LCD Display
(1st Edition 7/26/2004 )
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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i Contents
1.0 Handling Precautions
2.0 General Description
2.1 Display Characteristics
2.2 Functional Block Diagram
3.0 Absolute Maximum Ratings
4.0 Optical Characteristics
4.1 Signal for Lamp connector
4.2 Parameter guideline for CCFL Inverter
5.0 Signal Interface
5.1 Module Interface Connectors
5.2 Module Connector Pin Configuration
5.3 Backlight Connectors
5.4 Backlight Connector Pin Configuration
5.5 Signal Electrical Characteristics
5.6 Interface Timings Characteristics
5.7 Interface Timing Definition
6.0 Pixel format image
7.0 Power Consumption
8.0 Power ON/OFF Sequence
9.0 Backlight Characteristics
9.1 Signal for Lamp connector
9.2 Parameter guideline for CCFL Inverter
10.0Vibration, Shock, and Drop
10.1 Vibration & Shock
10.1.1 Vibration Test Spec
10.1.2 Shock Test Spec
10.2 Drop
11.0 Environment
11.1 Temperature and Humidity
11.1.1 Operating Conditions
11.1.2 Shipping Conditions
11.2 Atmospheric Pressure
11.3 Thermal Shock
12.0 Reliability
12.1 Failure criteria
12.2 Failure rate
12.2.1 Usage
12.2.2 Components de-rating
12.3 CCFL life
12.4 ON/OFF cycle
LF1548 Page 2
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13.0 Safety
13.1 Sharp edge requirement
13.2 Material
13.2.1 Toxicity
13.2.2 Flammability
13.3 Capacitors
13.4 Hazardous voltage
14.0 Other requirements
14.1 Smoke free design
15.0 Mechanical Characteristics
16.0 LI2203 Inverter
ii Record of Revision
Version and Date Page Old description New Description Remark
0.1 2004/3/25 All First Edition for Customer All
Version and Date
LF1548 Page 3
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1.0 Handling Precautions
1) Since front polarizer is easily damaged, pay attention not to scratch it.
2) Be sure to turn off power supply when inserting or disconnecting from input connector.
3) Wipe off water drop immediately. Long contact with water may cause discoloration or spots.
4) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth.
5) Since the panel is made of glass, it may break or crack if dropped or bumped on hard surface.
6) Since CMOS LSI is used in this module, take care of static electricity and insure human earth when
handling.
7) Do not open nor modify the Module Assembly.
8) Do not press the reflector sheet at the back of the module to any directions.
9) In case if a Module has to be put back into the packing container slot after once it was taken out from the
container, do not press the center of the CCFL Reflector edge. Instead, press at the far ends of the CFL
Reflector edge softly. Otherwise the TFT Module may be damaged.
10) At the insertion or removal of the Signal Interface Connector, be sure not to rotate nor tilt the Interface
Connector of the TFT Module.
11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do not twist nor
bend the TFT Module even momentary. At designing the enclosure, it should be taken into consideration
that no bending/twisting forces are applied to the TFT Module from outside. Otherwise the TFT Module
may be damaged.
12) Cold cathode fluorescent lamp in LCD contains a small amount of mercury. Please follow local ordinances or
regulations for disposal.
13) Small amount of materials having no flammability grade is used in the LCD module. The LCD module should be
supplied by power complied with requirements of Limited Power Source (2.11, IEC60950 or UL1950), or be applied
exemption.
14) The LCD module is designed so that the CFL in it is supplied by Limited Current Circuit (2.4, IEC60950 or UL1950).
Do not connect the CFL in Hazardous Voltage Circuit.
LF1548 Page 4
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2.0 General Description
This specification applies to the 15.0 inch Color TFT-LCD Module LF1548.
The display supports the XGA (1024(H) x 768(V)) screen format and 262,144 colors (RGB 6-bits data).
All input signals are 1 Channel LVDS interface compatible.
This module does not contain an inverter card for backlight.
Features
-XGA 1024(H) x 768(V) resolution
-12 CCFLs (Cold cathode Fluorescent Lamp)
-High contrast ratio, high aperture ratio
-Wide viewing angle
-High-speed response
-Low power consumption
Application
Desktop monitors
2.1 Display Characteristics
The following items are characteristics summary on the table under 25 condition:
ITEMS Unit SPECIFICATIONS
Screen diagonal [mm] 381 (15")
Outline dimension [mm] 326.5 x 253.5 x 19.46 typ.
Display Area [mm] 304.128 (H) x 228.096(38.1cm diagonal)
Resolution 1024(R,G,B x 3) x 768
Pixel Pitch [mm] 0.297 x 0.297
Pixel Arrangement R.G.B. Vertical Stripe
Display Mode TN mode, Normally White
Typical white Luminance. [cd/m2] 1600nit (typ) @8mA (note 1)(with Litemax VGA) note 5
Brightness uniformity 80% typ. (note 2)
Luminance uniformity 1.7 max.(Note 3)
Crosstalk (at 60Hz) 1.2% max. (note 4)
Contrast Ratio 400 : 1 typ.
Support Colors 262,144 colors (6-bit for R,G,B)
Chromaticity(CIE1931) 0.313
White-x
White-y 0.329
Color Gamut 60% typ., of NTSC coverage
Viewing angle 70(left),70(right),50(up),70(down) CR=10
Response Time [msec] 16ms typ. (Tr +Tf)
Nominal Input Voltage VDD [Volt] +3.3 V
Power Consumption [Watt] 56 (Max) @5mA (with Inverter)
(VDD line + CCFL line)
Electrical Interface LVDS (1 ch)
Frame rate [Hz] 60Hz typ., 75Hz max.
Weight [Grams] 1700 typ.
MTBF [hour] 50000 hours (note 6)
Mounting method Side mounting
Surface treatment Anti-glare, hard coating (3H)
Temperature Range
o
Operating [ C] 0 to +50
o
Storage (Shipping) [ C] -20 to +60
LF1548 Page 5
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256 512 768
2 3
192
1
384
4 5
576
Unit: pixels
Note 1: Brightness is measured at the center point of brightness value with all pixels displaying white.
90 % 50 % 10 %
10 %
50 %
90 %
Unit: percentage of dimension of display area
Note 2: Brightness uniformity of these 9 points is defined as below:
(Min. brightness / Max. brightness) x 100%
Note 3: TCO '99 Certification Requirements and test methods for environmental labeling of Display Report No. 2
defines Luminance uniformity as below:
((Lmax,+30deg. / Lmin,+30deg.) + (Lmax,-30deg. / Lmin,-30deg.)) / 2
TCO 99 certification requirements and test methods
1) Diagrammatic
LF1548 Page 6
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md
Lmax +30 and Lmin +30
Effective area W