0.4 2006/4/12 7 CR: Contrast Ratio typ 400 CR: Contrast Ratio typ 500
0.4 2006/4/12
0.4 2006/4/12 33
31 Update Shipping Label Format
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Anti-Glare, Hardness 3H,
Haze 25%
200 typ. (5 points average)
170 min. (5 points average)
White Luminance CCFL 6.0mA ((5
points average) 200 typ. / 170 min.
Viewing angle Vertical CR = 10
(Upper) 20
(Lower) 40
Update Color / Chromaticity
Coordinates
(CIE 1931)
Update 12. Appendix: EDID
description
Document version 0.4 4/35
B121EW03 V1
Product Specification
1. 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 (Notebook PC Bezel, 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(, 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(IEC60950 or UL1950). Do not connect the CFL in Hazardous Voltage Circuit.
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Document version 0.4 5/35
B121EW03 V1
Product Specification
2. General Description
B121EW03 V1 is a Color Active Matrix Liquid Crystal Display composed of a TFT LCD panel, a
driver circuit, and backlight system. The screen format is intended to support the WXGA
(1280(H) x 800(V)) screen and 262k colors (RGB 6-bits data driver). All input signals are
LVDS interface compatible. Inverter card of backlight is not included.
B121EW03 V1 is designed for a display unit of notebook style personal computer and industrial
machine.
2.1 Display Characteristics
The following items are characteristics summary on the table under 25 ℃ condition:
Items Unit Specifications
Screen Diagonal [mm] 307.9 (12.1W”)
Active Area [mm] 261.12(H) X 163.2(V)
Pixels H x V 1280x3(RGB) x 800
Pixel Pitch [mm] 0.204X0.204
Pixel Arrangement R.G.B. Vertical Stripe
Display Mode Normally White
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Typical White Luminance
(ICFL=6.0mA)
Luminance Uniformity 1.25 max. (5 points)
Contrast Ratio 500 typ.
Optical Rise Time/Fall Time [msec] 10/15 typ.
Nominal Input Voltage VDD [Volt] +3.3 typ.
Typical Power Consumption [Watt] 4.5W max.
Weight (without inverter) [Grams] 250g typ. 265g max
Physical Size [mm] 275.82x 178 x 5.2 max.
Electrical Interface 1 channel LVDS
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[cd/m2] 200 typ. (5 points average)
170 min. (5 points average)
(Note1)
Surface Treatment Anti-Glare, Hardness 3H,
Haze 25%
Support Color Native 262K colors ( RGB 6-bit data
driver )
Document version 0.4 6/35
Storage (Non
ng)
Temperature Range
Operating
-Operati
RoHS Compliance RoHS Compliance
Product Specification
[oC]
[oC]
0 to +50
-40 to +60
2.2 Optical Characteristics
The optical characteristics are measured under stable conditions at 25 (Room Temperature)℃:
Item Unit Conditions Min. Typ. Max. Note
B121EW03 V1
White Luminance
CCFL 6.0mA
Viewing Angle
Uniformity
Uniformity
CR: Contrast Ratio
Cross talk %
Response Time
Red x
Red y
Green x
Green y
Blue x
Blue y
White x
White y
170 200 - 1,2,3
-
-
-
-
1.25
1.6
-
- 15 20
25 35
0.560 0.580 0.600
0.320 0.340 0.360
0.290
0.530
0.135 0.155 0.175
0.135 0.155 0.175
0.283 0.313 0.343
0.299
40
40
20
40
10
0.310 0.330
0.550 0.570
0.329 0.359
-
-
-
-
15
2,7
1
5
2,7
Document version 0.4 7/35
Note 1: 5 points position (Display area : 261.12mm x 163.2mm)
W/4W/4W/4W/4
H/4
H/4
Product Specification
W
12
B121EW03 V1
H
Note 2: 13 points position
H/4
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H/4
H
H/4
H/4
H/4
10
10
W/4
1
6
3
45
W
W/4
4
W/4
2
7
W/4
10
3
5
8
9
H/4
10
11
Note 3: The luminance uniformity of 5 and 13 points is defined by dividing the maximum luminance values by the
minimum test point luminance
δ
Maximum Brightness of five points
=
W5
10
1312
Minimum Brightness of five points
Maximum Brightness of thirteen points
Document version 0.4 8/35
δ
W13
=
Minimum Brightness of thirteen points
B121EW03 V1
Note 4: Measurement method
The LCD module should be stabilized at given temperature for 30 minutes to avoid abrupt temperature change
during measuring. In order to stabilize the luminance, the measurement should be executed after lighting Backlight
for 30 minutes in a stable, windless and dark room.
Product Specification
Photo detector
Field=2°
-
Note 5: Definition of Cross Talk (CT)
CT = | YB – YA | / YA × 100 (%)
Where
YA = Luminance of measured location without gray level 0 pattern (cd/m2)
YB = Luminance of measured location with gray level 0 pattern (cd/m2)
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Document version 0.4 9/35
B121EW03 V1
Note 6: Definition of response time:
The output signals of BM-7 or equivalent are measured when the input signals are changed from “Black” to “White” (falling time) and from “White” to “Black” (rising time), respectively. The response time interval between
the 10% and 90% of amplitudes. Refer to figure as below.
Product Specification
"Black"
100%
S
i
90%
g
n
a
l
(
R
e
l
a
t
i
v
e
v
a
l
u
10%
e
)
0%
Tr
Tf
"White""White"
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Document version 0.4 10/35
B121EW03 V1
Note 7. Definition of viewing angle
Viewing angle is the measurement of contrast ratio 10, at the screen center, over a 180° horizontal and 180° ≧
vertical range (off-normal viewing angles). The 180° viewing angle range is broken down as follows; 90° (θ)
horizontal left and right and 90° (Φ) vertical, high (up) and low (down). The measurement direction is typically
perpendicular to the display surface with the screen rotated about its center to develop the desiredmeasurement
viewing angle.
Product Specification
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Document version 0.4 11/35
B121EW03 V1
p Conne
r(2pin)
n)
Product Specification
3. Functional Block Diagram
The following diagram shows the functional block of the 12.1 inches wide Color TFT/LCD Module:
(4 pairs LVDS)
RxIN0
RxIN1
RxIN2
RxCLKIN
VDD
GND
X-Driver
LCD DRIVE
CARD
LCD
Controller
TFT ARRAY/CELL
1280(R/G/B) x 3 x 800
DC-DC
Converter
Ref circuit
LCD Connector(20pi
Hirose DF19L-20P-1H
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Mating type DF19G-20S-1C
or compatible
Y-Driver
Backlight Unit
Lam
JST BHSR-02VS-1
Mating Type SM02B-BHSS-1-TB
cto
Document version 0.4 12/35
Product Specification
4. Absolute Maximum Ratings
Absolute maximum ratings of the module is as following:
4.1 Absolute Ratings of TFT LCD Module
Item Symbol Min Max Unit Conditions
Logic/LCD Drive
Vin -0.3 +4.0 [Volt] Note 1,2
4.2 Absolute Ratings of Backlight Unit
Item Symbol Min Max Unit Conditions
CCFL Current ICFL - 7 [mA] rms Note 1,2
4.3 Absolute Ratings of Environment
Item Symbol Min Max Unit Conditions
Operating Temperature TOP 0 +50 [
Operation Humidity HOP 5 95 [%RH] Note 3
Storage Temperature TST -40 +60 [
StorageHumidityHST
5 95
o
C] Note 3
o
C] Note 3
[%RH]
B121EW03 V1
Note 3
Note 1: With in Ta (25 )℃
Note 2: Permanent damage to the device may occur if exceed maximum values
Note 3: For quality performance, please refer to AUO IIS(Incoming Inspection Standard).
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Twb=39° C
Operating Range Storage Range
Document version 0.4 13/35
age
Product Specification
5. Electrical characteristics
5.1 TFT LCD Module
5.1.1 Power Specification
Input power specifications are as follows;
Symble Parameter Min Typ Max Units Condition
VDD Logic/LCD Drive
Volt
PDD VDD Power
IDD IDD Current
IRush Inrush Current
VDDrp Allowable
Logic/LCD Drive
Ripple Voltage
VDDns Allowable
Logic/LCD Drive
Ripple Noise
3.0 3.3 3.6 [Volt] Load Capacitance
20uF
1.0 1.6 [Watt] Max:All Black Pattern
400
420 mA
1800 mA
500 [mV]
Max:All Black Pattern
p-p
100 [mV]
p-p
B121EW03 V1
Note 1 : Measurement conditions:
+5.0V
C2
1uF/25V
R1
47K
R2
1K
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(High to Low)
Control
Signal
SW1
SW MAG-SPST
12
+12.0V
VR1
47K
D6
D5
D2S
D1
G
C3
0.01uF/25V
90%
Q3
AO6402
D2SD1D5
G
D6
Q3
AO6402
F1
VCC
(LCD Module Input)
C1
1uF/16V
3.3V
0V
Document version 0.4 14/35
10%
0.5ms
Vin rising time
B121EW03 V1
5.1.2 Signal Electrical Characteristics
Input signals shall be low or Hi-Z state when VDD is off.
It is recommended to refer the specifications of SN75LVDS86DGG(Texas Instruments) in
detail.
Signal electrical characteristics are as follows;
Product Specification
Parameter
Vth
Vtl
Note: LVDS Signal Waveform
Vth
Vtl
Condition Min Max Unit
Differential Input High
Threshold (Vcm=+1.2V)
Differential Input Low
Threshold (Vcm=+1.2V)
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VSS
Vcm
-100
100
[mV]
[mV]
Document version 0.4 15/35
5.2 Backlight Unit
Parameter guideline for CCFL Inverter
Parameter Min Typ Max Units Condition
Product Specification
B121EW03 V1
White Luminance
5 points average
CCFL current(ICFL) 5.5 6.0 6.5 [mA]
CCFL Frequency(FCFL) 50 60 70 [KHz]
CCFL Ignition Voltage(Vs)
CCFL Voltage (Reference)
(VCFL)
CCFL Power consumption
(PCFL)
Note 1: Typ are AUO recommended Design Points.
*1 All of characteristics listed are measured under the condition using the AUO Test inverter.
*2 In case of using an inverter other than listed, it is recommended to check the inverter
carefully. Sometimes, interfering noise stripes appear on the screen, and substandard
luminance or flicker at low power may happen.
*3 In designing an inverter, it is suggested to check safety circuit very carefully. Impedance of
CFL, for instance, becomes more than 1 [M ohm] when CFL is damaged.
*4 Generally, CFL has some amount of delay time after applying kick-off voltage. It is
recommended to keep on applying kick-off voltage for 1 [Sec] until discharge.
*5 CFL discharge frequency must be carefully chosen so as not to produce interfering noise
stripes on the screen.
*6 Reducing CFL current increases CFL discharge voltage and generally increases CFL
discharge frequency. So all the parameters of an inverter should be carefully designed so as
not to produce too much leakage current from high-voltage output of the inverter.
Note 2: It should be employed the inverter which has “Duty Dimming”, if ICFL is less than 4mA.
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170
1400 - -
- 580 -
- 3.5 -
200
-
[cd/m2 ]
rms
[Volt]
rms
[Volt]
rms
[Watt]
=
(Ta=25)℃
Note 2
(Ta=25)℃
Note 3,4
(Ta= 0)℃
Note 5
(Ta=25)℃
Note 6
(Ta=25)℃
Note 6
Note 3: CFL discharge frequency should be carefully determined to avoid interference between
inverter and TFT LCD.
Note 4: The frequency range will not affect to lamp life and reliability characteristics.
Note 5: CFL inverter should be able to give out a power that has a generating capacity of over
1,430 voltage. Lamp units need 1,400 voltage minimum for ignition.
Note 6: Calculator value for reference (ICFL×VCFL=PCFL)
Document version 0.4 16/35
B121EW03 V1
Note 7: Requirements for a system inverter design, which is intended to have a better display
performance, a better power efficiency and a more reliable lamp, are following.
It shall help increase the lamp lifetime and reduce leakage current.
a. The asymmetry rate of the inverter waveform should be less than 10%.
b. The distortion rate of the waveform should be within √2 ±10%.
* Inverter output waveform had better be more similar to ideal sine wave.
Product Specification
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Document version 0.4 17/35
6. Signal Characteristic
6.1 Pixel Format Image
Following figure shows the relationship of the input signals and LCD pixel format.
0 1 1279 1280
Product Specification
B121EW03 V1
1st Line
800th Line
R G B R GB
R G B R GB
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R G B R G B
R G B R G B
Document version 0.4 18/35
B121EW03 V1
Product Specification
6.2 The input data format
Signal Name Description
RED5
RED4
RED3
RED2
RED1
RED0
GREEN 5
GREEN 4
GREEN 3
GREEN 2
GREEN 1
GREEN 0
BLUE 5
BLUE 4
BLUE 3
BLUE 2
BLUE 1
BLUE 0
DTCLK Data Clock
DSPTMG Display Timing This signal is strobed at the falling edge of
VSYNC Vertical Sync The signal is synchronized to -DTCLK .
HSYNC Horizontal Sync The signal is synchronized to -DTCLK .
Note: Output signals from any system shall be low or Hi-Z state when VDD is off.
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Red Data 5 (MSB)
Red Data 4
Red Data 3
Red Data 2
Red Data 1
Red Data 0 (LSB)
Red-pixel Data
Green Data 5 (MSB)
Green Data 4
Green Data 3
Green Data 2
Green Data 1
Green Data 0 (LSB)
Green-pixel Data
Blue Data 5 (MSB)
Blue Data 4
Blue Data 3
Blue Data 2
Blue Data 1
Blue Data 0 (LSB)
Blue-pixel Data
Red-pixel Data
Each red pixel's brightness data consists of
these 6 bits pixel data.
Green-pixel Data
Each green pixel's brightness data consists of
these 6 bits pixel data.
Blue-pixel Data
Each blue pixel's brightness data consists of
these 6 bits pixel data.
The typical frequency is 68.9 MHZ.. The signal
is used to strobe the pixel data and DSPTMG
signals. All pixel data shall be valid at the falling
edge when the DSPTMG signal is high.
-DTCLK. When the signal is high, the pixel data
shall be valid to be displayed.
Document version 0.4 19/35
B121EW03 V1
Product Specification
6.3 Signal Description
The LVDS receiver equipped in this LCD module is compatible with SN75LVDS86 standard. LVDS is a differential
signal technology for LCD interface and high speed data transfer device. Transmitter shall be SN75LVDS84 (negative
edge sampling) or compatible.
Signal Name Description
RxIN0N, RxIN0P LVDS differential data input (Red0-Red5, Green0)
RxIN1N, RxIN1P LVDS differential data input (Green1-Green5, Blue0-Blue1)
RxIN2N, RxIN2P LVDS differential data input (Blue2-Blue5, Hsync, Vsync, DSPTMG)
RxCLKINN, RxCLKIN0P LVDS differential clock input
VDD +3.3V Power Supply
GND Ground
Note1: Start from right side
Note2: Please follow VESA.
Note3: Input signals shall be low or Hi-Z state when VDD is off. Internal circuit of LVDS inputs are as following.
Connector
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20
GND
1
GND
Document version 0.4 20/35
The module uses a 100ohm resistor between positive and negative data lines of each receiver input
Product Specification
Signal Input
Pin No.
8
9
11
12
14
15
RxIN0-
R
RxIN0+
RxIN1-
R
RxIN1+
RxIN2-
R
RxIN2+
LVDS Receiver
B121EW03 V1
17
RxCLKIN-
R
18
RxCLKIN+
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Document version 0 4 21/35
B121EW03 V1
Product Specification
6.4 Interface Timing
6.4.1 Timing Characteristics
Basically, interface timings should match the 1280x800 /60Hz manufacturing guide line timing.
Parameter Symbol Min. Typ. Max. Unit
Frame Rate - 50 60 - Hz
Clock frequency 1/ T
Vertical
Section
Horizontal
Section
End-frame checking period tEF 2 T
DE checking period tDE 6400 T
Note : DE mode only
6.4.2 Timing diagram
DOTCLK
T
CLOCK
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Input
Data
DE
DE
62 68.9 72 MHz
Clock
Period TV 803 816 832
Active T
Blanking T
Period TH 1302 1408 1700
Active T
Blanking T
VD
VB
HD
HB
800 800 800
3 16 32
- 1280 -
22 128 420
Input Timing Definition ( DE Mode)
Invaild
Data
T
HB
Pixel
1
T
VB
Pixel
2
T
Pixel
3
T
HD
H
T
V
Pixel
N-1
T
VD
Pixel
N
T
Line
T
Clock
Line
Line
Invaild
Data
Pixel
1
Document version 0.4 22/35
B121EW03 V1
Product Specification
6.5 Power ON/OFF Sequence
VDD power and lamp on/off sequence is as follows. Interface signals are also shown in the chart.
Signals from any system shall be Hi-Z state or low level when VDD is off.