LITEMAX ALF2011 User manual

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LITEMAX ALF/ALH2011
Sunlight Readable 20.1” LCD Display
(1st Edition 8/30/2007 )
All information is subject to change without notice.
Approved by Checked by Prepared by
David Sharline River
LITEMAX Electronics Inc.
8F, No.137, Lane 235, Bau-chiau Rd.,
Shin-dian City, Taipei County, Taiwan R.O.C.
Tel : [phone]
Fax: [phone]
Homepage: http://www.litemax.com.tw

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Record Revision
Version and Date Page Old Description New Description Remark

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Contents
Record Revision 2
Contents 3
Handling Precautions 4
General Description 5
Display Characteristics 5
Electrical specifications 6
Electrical characteristics 8
Typical operating conditions 8
Optical specifications 12

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Handling Precautions
1) Since front polarizer is easily damaged, be extremely careful when handling panel.
2) Be sure to turn off power supply when inserting or disconnecting from input
connectors.
3) Wipe off water 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 a
hard surface.
6) Since CMOS LSI is used in this module, be careful of static electricity by grounding
those handling the display.
7) Do not open nor modify the module assembly.
8) Do not press or touch the panel surface with hands or tools.
9) Do not press or move the reflector sheet at the back of the module in any direction.
10) In case the module has to be put back into the packing container slot from where it
was taken, do not press the center of the CCFL reflector edge. Instead, press at the
far ends of the CCFL reflector edge softly. Otherwise the TFT module may be
damaged.
11) **At the insertion or removal of the signal Interface Connector, be sure not to rotate
nor tilt the interface connector of the TFT module.
12) After installation of the TFT module into an enclosure (Desktop monitor Bezel, for
example), do not twist nor bend the TFT Module even momentarily. Design the
enclosure so that no bending/twisting forces are applied to the TFT module. Otherwise
the TFT module may be damaged.

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General Description
AU2011 is a Color Active Matrix Liquid Crystal Display composed of a TFT-LCD panel, a
driver circuit, and a backlight system. The screen format is intended to support the SVGA
800(H) x 600(V)) screen and 16.7M colors (RGB 6-bits + HiFRC data). All input signals
are TTL interface compatible. Inverter card of backlight is not included. AU2011 is
designed for a display unit of personal computer.
Display Characteristics
NO. Item Specification Remark
1 Display resolution(pixel) 800x3(H)×600(V)
2 Display Mode TN Type, Normally White + SWV Film
3 Active area (mm) 408(H)×306(V)
4 Screen size (inch) 20.1(Diagonal)
5 Pixel pitch (mm) 0.51(H)×0.51(V)
6 Color configuration R. G. B. Vertical stripe
7 Display Color 16.2M (6 bit + FRC)
8 Typical white Luminance 1000 nit (typ.)
9 Contrast ratio 700:1
10 Color Gamut 72% typ. of NTSC coverage
11 Response Time 16ms typ. (Tr+Tf)
12 Electrical Interface TTL 1 port
13 Overall dimension (mm) 448(W)×347(H)×27(D)(max.) Note 1
14 Weight (g) 4000
15 Surface Treatment Anti-Glare type
16 RoHS RoHS compliance
Note 1: Refer to Fig. 1.

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Electrical specifications
1.Pin assignment
P/N Symbol Function P/N Symbol Function
1 NC 26 R0 Red Data
2 NC 27 GND Ground
3 NC 28 G7
4 GND Ground 29 G6
5 GND Ground 30 G5
6 VCC 31 G4
Green Data
7 VCC 32 GND Ground
8 VCC Power Input (+5.0V) 33 G3 Green Data
9 VCC 34 G2
10 GND 35 G1
11 HSYNC Horizontal Sync. Active 36 G0
12 VSYNC Vertical Sync. Low 37 GND Ground
13 GND 38 B7
14 DE Data Enable 39 B6
15 GND 40 B5
16 DCLK Dot Clock 41 B4
Blue Data
17 GND Ground 42 GND Ground
18 R7 43 B3
19 R6 44 B2
20 R5 Red Data (R7 :MSB) 45 B1
21 R4 46 B0
Blue Data
22 GND Ground 47 GND Ground
23 R3 48 GND Ground
24 R2 Red Data 49 NC
25 R1 50 NC
CN1 (50P) connector: Compatible with P-Two AF7501-N2G1Z

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2. Absolute maximum ratings (GND = 0 V)
Values Unit
Parameter Symbol
Min. Max.
Remark
Power voltage VCC -0.3 5.5 VDC At 25℃
Input signal voltage VLH -0.3 3.6 VDC At 25℃
Operating temperature Top 0 +50 ℃Note 1
Storage temperature TST -20 +70 ℃Note 1
Note (1) The relative humidity must not exceed 90% non-condensing at temperatures of
40℃or less. At temperatures greater than 40℃, the wet bulb temperature must
not exceed 39℃. When operate at low temperatures, the brightness of CCFL will
drop and the lifetime of CCFL will be reduced.
Note (2) The unit should not be exposed to corrosive chemicals.

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Electrical characteristics
Typical operating conditions
Item Symbol Min. Typ. Max. Unit Remark
Input voltage V
CC 4.75 5.0 5.25 V
Current
consumption IA - 0.8 1.0 Arms Note 1
Inrush current I RUSH - - 3.0 Apeak Note 2
Power
supply
voltage
Power ripple
voltage
VRP
- -
100 mVp-p
Low voltage VIL 0 - 1.0 V
Internal
logic
High voltage VIH 2.3 - 3.3 V
Note 1:Effective value (mArms) at VCC = 5 V/25℃.
Note 2: Refer to the following power-on condition.
Sequence of Power-on/off and signal-on/off

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Apply the lamp voltage within the LCD operating range. When the backlight turns on
before the LCD operation or the LCD turns off before the backlight turns off, the display
may momentarily become abnormal.
Caution
The above on/off sequence should be applied to avoid abnormal function in the display. In
case of handling: Make sure to turn off the power when you plug the cable into the input
connector or pull the cable out of the connector.
b. Display color v.s. input data signals
Note: Each basic color can be displayed in256 gray scales using the 8 bit data signals. By
combining the 24-bit data signals(R, G, B), the 16777216 colors can be achieved on the
display.

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Input signal timing
Timing diagrams of input signal are shown in Fig 2.
(1). Timing characteristics of input signals
DE mode
Item Symbol Min. Typ. Max. Unit Remark
Clock frequency Fck 38 40 50 MHz
Horizontal blanking Thb1 235 256 500 Clk
Horizontal display period Thd - 800 - Clk
Horizontal sync. period Th 1035 1056 1300 Clk
Vertical frequency - 46 60 76 Hz
Vertical blanking Tvb1 20 28 150 Th
Vertical display width Tvd - 600 - Th
Vertical sync. period Tv 620 628 750 Th
H/V mode
Item Symbol Min. Typ. Max. Unit Remark
Clock frequency Fck 38 40 50 MHz
Horizontal display period Thd 1030 1056 1060 Clk
Hsync front porch Thf 184 210 214 Clk
Hsync width+back porch Thw+Thb 46 46 46 Clk
Hsync blanking Thb1 230 256 260 Clk
Vsync period Tv 628 628 628 Th
Vsync front porch Tvf 1 1 1 Th
Vsync blanking Tvb1 28 28 28 Th
Item Symbol Value Unit Description
Horizontal display start The 46 Clk After falling edge of Hsync, counting 46 clk,
then getting valid data from 47th clk ’s data.
Vertical display start Tve 27 Th After falling edge of Vsync, counting 27T h,
then getting 28th Th’s data.
Note 1:Clock falling edge latch the data.
Note 2:H/V is negative polarity.
Display position

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Backlight unit
The backlight system is an edge-lighting type with a CCFT(Cold Cathode Fluorescent
Tube). The characteristics of a single lamp are shown in the following tables.
Parameter Symbol Min. Typ. Max. Unit Remark
Lamp voltage VL 720 800 880 Vrms Note 1
Lamp current IL 4 6.5 7 mArms Note 1
Power consumption PL - 5.2x6 - W Note 2
- -
1500(T=0℃)
Lamp starting voltage VS
1150(T=25℃)
Vrms Note 3
Frequency FL 40 52 60 KHZ Note 4
Lamp life time LL 50000 - - Hr Note 1, 5
Note (1) T= 25℃
Note (2) Inverter should be designed with the characteristic of lamp. When you are
designing the inverter, the output voltage of the inverter should comply with
the following conditions.
(a) The area under the positive and negative cycles of the waveform of the lamp
current and lamp voltage should be area symmetric (the symmetric ratio should
be larger than 90%).
(b) There should not be any spikes in the waveform.
(c) The waveform should be sine wave as possible.
(d) Lamp current should not exceed the maximum value within the operating
temperature (It is prohibited to over the maximum lamp current even if operated
in the non-guaranteed temperature). When lamp current over the maximum
value for a long time, it may cause fire. Therefore, it is recommend that the
inverter should have the current limited circuit.
Note (3) The inverter open voltage should be designed larger than the lamp starting
voltage at T=0oC, otherwise backlight may be blinking for a moment after turning
on or not be able to turn on. The open voltage should be measured after ballast
capacitor. If an inverter has shutdown function it should keep its open voltage for
longer than 1 second even if lamp connector is open.
Note (4) Lamp frequency may produce interference with horizontal synchronous
frequency and this may cause line flow on the display. Therefore lamp frequency
shall be detached from the horizontal synchronous frequency and its harmonics
as far as possible in order to avoid interference.
Note (5) Brightness (IL= 6.5mA) to be decrease to the 50% of the initial value.
Note (6) CN2 connector (backlight): BHSR-02VS-1 (JST)
Mating connector: SM02B-BHS-1-TB (JST)
Pin no. Symbol Function Remark
1 H CCFL power supply
(H.V.)
Cable color: Pink (central);
Dark Gray others)
2 L CCFL power supply
(GND) Cable color: White

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Optical specifications
Item Symbol Condition Data Unit Note
Rx 0.642 -
Red Ry 0.346 -
Gx 0.292 -
Green Gy 0.632 -
Bx 0.142 -
Blue By 0.075 -
Wx 0.342 -
Color
chromaticity
White Wy 0.339 -
Center Luminance of White Lc 976 cd/㎡
Average La 935.8 cd/㎡
Uniform Lu
θx=0
θy=0
BM-7
90.75 ％
Test Mode：
（1）（2）（3）
Contrast Ratio CR 662.9 -
Color Saturation NTSC
θx=0
θy=0
Klein
K-10
80 ％
est Mode：
（1）（4）
θx+ 70
Horizontal θx- -65
θy+ 55
Viewing Angle
Vertical θy-
CR≧10
-60
Deg Test Mode：
（1）（3）
Test Mode：
Note (1) Definition of Viewing Angle（θx，θy）：

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Note (2) Definition of Test Point：
BA C
2
1
3
Active Area
Note (3) BM-7 Measurement Setup:
Note (4) Klein K-10 Measurement Setup:

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Test tem Test Condition Remark
High temperature storage 60℃, 240Hrs Note 1, 2, 3
Low temperature storage -20℃, 240Hrs Note 1, 2, 3
High temperature operation 50℃, 240Hrs Note 1, 2, 3
Low temperature operation 0℃, 240Hrs Note 1, 2, 3
Temperature cycling
(non-operation) -20℃~60℃1H, 10mins, 1H, 5cycles Note 1, 2, 3
Electrostatic discharge
(non-operation)
150 pF,150Ω,10kV,1 second, 9 position on
the panel, 10 times each place Note 3
Vibration (non-operation) Sweep:1G, 10HZ ~ 500HZ ~ 10HZ /2.5min 2
hours for each direction X, Y, Z (6 Hrs in total) Note 1, 2, 3
Mechanical shock
(non-operation)
50G/11ms, 200G/2ms, ±X, ±Y, ±Z once for
each direction Note 1, 2, 3
Note (1) Evaluation should be tested after storage at room temperature for one hour.
Note (2) here should be no change which might affect the practical display function
when the display quality test is conducted under normal operating condition.
Note (3) Judgment:
1.Function OK.
2.No serious image quality degradation.

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Timing Chart