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Version Date
Ver 3.0
Sep.14,’05
Page
(New)
Section Description
All
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REVISION HISTORY
Approval specification for acer/Quanta first issued.
All
Issued Date: Sep. 14, 2005
Model No.: N121I2 -L01
Approval
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1 GENERAL DESCRIPTION
1.1 OVERVIEW
N121I2 -L01 is a 12.1” TFT Liquid Crystal Display module with single CCFL Backlight unit and 20 pins
LVDS interface. This module supports 1280 x 800 Wide-XGA mode and can display 262,144 colors. The
optimum viewing angle is at 6 o’clock direction. The inverter module for Backlight is not built in.
1.2 FEATURES
- Thin and light weight
- WXGA (1280 x 800 pixels) resolution
- 3.3V LVDS (Low Voltage Differential Signaling) interface with 1 pixel/clock
- Meet RoHS requirement
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Issued Date: Sep. 14, 2005
Model No.: N121I2 -L01
Approval
1.3 APPLICATION
- TFT LCD Notebook
1.4 GENERAL SPECIFICATI0NS
Item Specification Unit Note
Active Area 261.12 (H) x 163.2 (V) (12.1” diagonal) mm
Bezel Opening Area 264.12 (H) x 166.2 (V) mm
Driver Element a-si TFT active matrix - Pixel Number 1280 x R.G.B. x 800 pixel Pixel Pitch 0.204 (H) x 0.204 (V) mm Pixel Arrangement RGB vertical stripe - Display Colors 262,144 color Transmissive Mode Normally white - Surface Treatment Hard coating (2H), glare type - -
1.5 MECHANICAL SPECIFICATIONS
Item Min. Typ. Max. Unit Note
Horizontal(H) 275.3 275.8 276.3 mm
Module Size
Note (1) Please refer to the attached drawings for more information of front and back outline dimensions.
Vertical(V) 177.5 178 178.5 mm
Depth(D) - 5.2 5.5 mm
Weight - 260 275 g -
(1)
(1)
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p
g
p
)
2 ABSOLUTE MAXIMUM RATINGS
2.1 ABSOLUTE RATINGS OF ENVIRONMENT
Item Symbol
Storage Temperature TST -20 +60 ºC (1)
Operating Ambient Temperature TOP 0 +50 ºC (1), (2)
Shock (Non-Operating) S
Vibration (Non-Operating) V
Note (1) Temperature and relative humidity range is shown in the figure below.
(a) 90 %RH Max. (Ta Љ 40 ºC).
(b) Wet-bulb temperature should be 39 ºC Max. (Ta > 40 ºC).
(c) No condensation.
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Issued Date: Sep. 14, 2005
Model No.: N121I2 -L01
Approval
Value
Min. Max.
- 200 G (3), (5)
NOP
- 1.5 G (4), (5)
NOP
Unit Note
Note (2) The temperature of panel surface should be 0 ºC Min. and 50 ºC Max.
Note (3) 2ms, half sine wave, 1 time for ± X, ± Y, ± Z.
Note (4) 10 ~ 500Hz, 0.5 Hr/cycle, 0.5hr each X, Y, Z,
Relative Humidity
100
90
80
60
O
erating Range
40
20
Stora
5
erature (ºC
Tem
e Range
8060 -20 40020-40
Note (5) At testing Vibration and Shock, the fixture in holding the module has to be hard and rigid enough
so that the module would not be twisted or bent by the fixture.
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2.2 ELECTRICAL ABSOLUTE RATINGS
2.2.1 TFT LCD MODULE
Item Symbol
Power Supply Voltage Vcc -0.3 +4.0 V
Logic Input Voltage VIN -0.3 Vcc+0.3 V
2.2.2 BACKLIGHT UNIT
Item Symbol
Lamp Voltage VL - 2.5K V
Lamp Current IL 3.0 6.5 mA
Lamp Frequency FL 45 80 KHz
Note (1) Permanent damage to the device may occur if maximum values are exceeded. Function operation
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Value
Min. Max.
Value
Min. Max.
Unit Note
Unit Note
Issued Date: Sep. 14, 2005
Model No.: N121I2 -L01
Approval
(1)
(1), (2), IL = 6.0 mA
RMS
RMS
(1), (2)
should be restricted to the conditions described under Normal Operating Conditions.
Note (2) Specified values are for lamp (Refer to Section 3.2 for further information
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Issued Date: Sep. 14, 2005
Model No.: N121I2 -L01
3 ELECTRICAL CHARACTERISTICS
3.1 TFT LCD MODULE Ta = 25 ± 2 ºC
Parameter Symbol
Min. Typ. Max.
Power Supply Voltage Vcc 3.0 3.3 3.6 V Ripple Voltage VRP - 100 mV Rush Current I
Power Supply Current
Logical Input Voltage
White - 290 - mA (3)a
Black
“H” Level VIL - - +100 mV “L” Level V
- 1.2 1.5 A (2)
RUSH
lcc
-100 - - mV -
IH
- 350 - mA (3)b
Terminating Resistor RT - 100 - Ohm Power per EBL WG P
- 2.982 - W (4)
EBL
Note (1) The module should be always operated within above ranges.
Note (2) Measurement Conditions:
Value
Unit Note
Approval
+3.3V
R1
47K
Q1 2SK1475
FUSE
C3
1uF
Vcc
(LCD Module Input)
(High to Low)
(Control Signal)
SW
+12V
C1
1uF
VR1
R2
1K
47K
0.01uF
Q2
2SK1470
C2
Vcc rising time is 470us
+3.3V
0.9Vcc
0.1Vcc
GND
470us
Note (3) The specified power supply current is under the conditions at Vcc = 3.3 V, Ta = 25 ± 2 ºC, DC
Current and f
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= 60 Hz, whereas a power dissipation check pattern below is displayed.
v
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Issued Date: Sep. 14, 2005
Model No.: N121I2 -L01
Approval
Note (4) The specified power are the sum of LCD panel electronics input power and the inverter input
a. White Pattern
Active Area
power. Test conditions are as follows.
(a) Vcc = 3.3 V, Ta = 25 ± 2 ºC, f
(b) The pattern used is a black and white 32 x 36 checkerboard, slide #100 from the VESA file
82 52 # 2 6th character of name (“2”)
83 53
84 54
85 55
86 56
Standard timing ID # 3
Standard timing ID # 3
Standard timing ID # 4
Standard timing ID # 4
Standard timing ID # 5
Standard timing ID # 5
Standard timing ID # 6
Standard timing ID # 6
Standard timing ID # 7
Standard timing ID # 7
Standard timing ID # 8
Standard timing ID # 8
Detailed timing description # 1 Pixel clock (“71MHz”, According
to VESA CVT Rev1.1)
# 1 Pixel clock (hex LSB first)
# 1 H active (“1280”)
# 1 H blank (“160”)
# 1 H active : H blank (“1280 : 160”)
# 1 V active (”800”)
# 1 V blank (”23”)
# 1 V active : V blank (”800 :23”)
# 1 H sync offset (”48”)
# 1 H sync pulse width ("32”)
# 1 V sync offset : V sync pulse width (”3 : 6”)
# 1 H sync offset : H sync pulse width : V sync offset : V sync
width (”48: 32 : 3 : 6”)
# 1 H image size (”261 mm”)
# 1 V image size (”163 mm”)
# 1 H image size : V image size (”261 : 163”)
# 1 H boarder (”0”)
# 1 V boarder (”0”)
# 1 Non-interlaced, Normal, no stereo, Separate sync, H/V pol
Negatives
Detailed timing description # 2
# 2 Flag
# 2 Reserved
# 2 FE (hex) defines ASCII string (Model Name “N121I1”, ASCII)
# 2 Flag
# 2 1st character of name (“N”)
# 2 2nd character of name (“1”)
# 2 3rd character of name (“2”)
# 2 4th character of name (“1”)
# 2 5th character of name (“I”)
# 2 7th character of name (“-”)
# 2 8th character of name (“L”)
# 2 9th character of name (“0”)
# 2 10th character of name (“1”)
# 2 Padding with “Blank” character
# 2 Padding with “Blank” character
# 2 Padding with “Blank” character
Detailed timing description # 3
# 3 Flag
# 3 Reserved
# 3 FE (hex) defines ASCII string (Vendor “CMO”, ASCII)
# 3 Flag
# 3 1st character of string (“C”)
# 3 2nd character of string (“M”)
# 3 3rd character of string (“O”)
# 3 New line character indicates end of ASCII string
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
Detailed timing description # 4
# 4 Flag
# 4 Reserved
# 4 FE (hex) defines ASCII string (Model Name“N121I1-L01”,
ASCII)
# 4 Flag
# 4 1st character of name (“N”) 4E
# 4 2nd character of name (“1”) 31
# 4 3rd character of name (“2”) 32
# 4 4th character of name (“1”) 31
# 4 5th character of name (“I”) 49
# 4 6th character of name (“2”) 32
# 4 7th character of name (“-”) 2D
# 4 8th character of name (“L”) 4C
# 4 9th character of name (“0”)
# 4 9th character of name (“1”)
# 4 New line character indicates end of ASCII string
# 4 Padding with “Blank” character
# 4 Padding with “Blank” character
Extension flag
Checksum
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5.6 EDID SIGINAL SPECIFICATION
(1) EDID Power
Parameter Symbol Test Condition Min. Typ. Max. Unit
Power supply
voltage
Vcc — 1.8 — 5.5 V
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Issued Date: Sep. 14, 2005
Model No.: N121I2 -L01
Approval
(2) DC characteristics
Parameter Symbol Test Condition Min Typ Max Unit
Supply current Vcc=5.0V Icc READ at 100kHz— 0.4 1.0 mA
Supply current Vcc=5.0V Icc WRITE at 100kHz— 2.0 3.0 mA
Standby Current ISB Vin=Vcc or Vss — 1.6 4.0 μA
Input Leakage Current ILI Vin=Vcc or Vss — 0.1 10 μA
Onput Leakage Current ILO Vout=Vcc or Vss— 0.1 10 μA
Input Low Level VIL — -1.0 — Vcc x 0.3 V
Input High Level VIH — Vcc x 0.7 — Vcc+0.5 V
Output Low Level Vcc=3.0V VOL1 IOL=3mA — — 0.4 V
Output Low Level Vcc=1.8V VOL2 IOL=1.5mA — — 0.5 V
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(3) AC characteristics (VCC=1.8~5.5V standard operation mode)
Parameter Symbol Min Max Unit
Clock Frequency, SCL FSCL — 100 kHz
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Issued Date: Sep. 14, 2005
Model No.: N121I2 -L01
Approval
Clock Pulse Width Low TLOW 4.7 —
Clock Pulse Width High THIGH 4.0 —
Noise Suppression Time TI — 100 ns
Clock Low to Data Out ValidTAA 0.1 4.5
Time the bus must be free
BUF 4.7 —
before a new transmission
can start
Start Hold Time THD.STA 4.7 —
Start Set-up Time TSU.STA 4.7 —
Data in Hold Time THD.DAT 0 —
Data in Set-up Time TSU.DAT 200 — ns
Inputs Rise Time TR — 1.0
T
Ӵs
Ӵs
Ӵs
Ӵs
Ӵs
Ӵs
Ӵs
Ӵs
Inputs Fall Time TF — 300 ns
Stop Set-up Time TSU.STO 4.7 —
Data Out Hold Time TDH 100 — ns
Write Cycle Time TWR — 10 ms
Ӵs
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6 INTERFACE TIMING
6.1 INPUT SIGNAL TIMING SPECIFICATIONS
The input signal timing specifications are shown as the following table and timing diagram.
Signal Item SymbolMin. Typ. Max. Unit Note
DCLK Frequency 1/Tc - 71 80 MHz -
Vertical Total Time TV 802 823 1050 TH -
DE
Vertical Addressing Time TVD 800 800 800 TH -
Horizontal Total Time TH 138014401680 Tc -
Horizontal Addressing Time THD 128012801280 Tc -
INPUT SIGNAL TIMING DIAGRAM
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Model No.: N121I2 -L01
Approval
DE
DCLK
TC
DE
DATA
6.2 POWER ON/OFF SEQUENCE
Power Supply
for LCD, Vcc
- Interface Signal
(LVDS Signal of
Transmitter), V
- Power for Lamp
0V
0V
I
Power On
90%
10%
t1
HD
T
Restart
t7
10%
10%
t4
Valid Data
ONOFF OFF
Power Off
90%
t3 t2
t6 t5
50%50%
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Timing Specifications:
0.5ms <t1Љ10 msec
0 < t2 Љ 50 msec
0 < t3 Љ 50 msec
t4 Њ 500 msec
t5 Њ 200 msec
t6 Њ 200 msec
Note (1) Please avoid floating state of interface signal at invalid period.
Note (2) When the interface signal is invalid, be sure to pull down the power supply of LCD Vcc to 0 V.
Note (3) The Backlight inverter power must be turned on after the power supply for the logic and the
interface signal is valid. The Backlight inverter power must be turned off before the power supply
for the logic and the interface signal is invalid.
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Issued Date: Sep. 14, 2005
Model No.: N121I2 -L01
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Note (4) Sometimes some slight noise shows when LCD is turned off (even backlight is already off). To
avoid this phenomenon, we suggest that the Vcc falling time had better to follow
t7 Њ 5 msec
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7 OPTICAL CHARACTERISTICS
7.1 TEST CONDITIONS
Item Symbol Value Unit
Ambient Temperature Ta
Ambient Humidity Ha
Supply Voltage VCC 3.3 V
Input Signal According to typical value in "3. ELECTRICAL CHARACTERISTICS"
Inverter Current IL 6.0 mA
Inverter Driving Frequency FL 61 KHz
Inverter Sumida-H05-4915
The measurement methods of optical characteristics are shown in Section 7.2. The following items
should be measured under the test conditions described in Section 7.1 and stable environment shown in
Note (6).
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25r2
50r10
Issued Date: Sep. 14, 2005
Model No.: N121I2 -L01
Approval
o
C
%RH
7.2 OPTICAL SPECIFICATIONS
Item Symbol Condition Min. Typ. Max. Unit Note
Contrast Ratio CR 350 500 - - (2), (5)
Response Time
Luminance of White L
White Variation
Color
Green
Chromaticity
White
Horizontal
Viewing Angle
Vertical
Red
Blue
TR - 5 10 ms
- 11 16 ms
T
F
170 200 - cd/m2(4), (5)
AVE
GW
Rx
Ry
Gx
Gy
Bx
By
=0q, TY =0q
T
x
Viewing Normal Angle
- - 1.4 - (5), (6)
0.570
0.335
0.324
Typ.-
0.03
0.570
0.154
Typ.+
0.03
0.140
Wx 0.313 Wy
Tx+
T
-
x
TY+
T
Y
CRt10
-
0.329
50 60 50 60 30 40 40 50 -
Deg.(1), (5)
(3)
-
-
-
(1), (5)
-
-
-
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Note (1) Definition of Viewing Angle (Tx, Ty):
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Model No.: N121I2 -L01
Approval
TX- = 90º
x-
6 o’clock
T
y- = 90º
y-
Note (2) Definition of Contrast Ratio (CR):
The contrast ratio can be calculated by the following expression.
Normal
Tx = Ty = 0º
Ty-Ty
Tx-
Tx+
12 o’clock direction
y+
T
y+ = 90º
x+
TX+ = 90º
Contrast Ratio (CR) = L63 / L0
L63: Luminance of gray level 63
L 0: Luminance of gray level 0
CR = CR (5)
CR (X) is corresponding to the Contrast Ratio of the point X at Figure in Note (6).
Note (3) Definition of Response Time (T
100%
90%
Optical
Response
Gray Level 63
10%
0%
R
T
R
, TF):
Gray Level 0
Gray Level 63
Time
T
F
66.67ms
66.67m
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500
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Issued Date: Sep. 14, 2005
Model No.: N121I2 -L01
Approval
Note (4) Definition of Average Luminance of White (L
Measure the luminance of gray level 63 at 5 points
L
= [L (1)+ L (2)+ L (3)+ L (4)+ L (5)] / 5
AVE
L (x) is corresponding to the luminance of the point X at Figure in Note (6).
Note (5) Measurement Setup:
The LCD module should be stabilized at given temperature for 20 minutes to avoid abrupt
temperature change during measuring. In order to stabilize the luminance, the measurement
should be executed after lighting Backlight for 20 minutes in a windless room.
LCD Module
LCD Panel
Center of the Screen
Field of View= 2º
AVE
):
CA210
CS-1000T
Note (6) Definition of White Variation (GW):
Measure the luminance of gray level 63 at 5 points
GW = Maximum [L (1), L (2), L (3), L (4), L (5)] / Minimum [L (1), L (2), L (3), L (4), L (5)]
Vertical Line
W
W/4
W/2
3W/
mm
Horizontal Line
D
D/4 D/23D/4
1 2
5
3
4
Light Shield Room
(Ambient Luminance < 2 lux)
X
: Test Point
X=1 to 5
Active Area
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8 PRECAUTIONS
8.1 HANDLING PRECAUTIONS
(1) The module should be assembled into the system firmly by using every mounting hole. Be careful not
to twist or bend the module.
(2) While assembling or installing modules, it can only be in the clean area. The dust and oil may cause
electrical short or damage the polarizer.
(3) Use fingerstalls or soft gloves in order to keep display clean during the incoming inspection and
assembly process.
(4) Do not press or scratch the surface harder than a HB pencil lead on the panel because the polarizer is
very soft and easily scratched.
(5) If the surface of the polarizer is dirty, please clean it by some absorbent cotton or soft cloth. Do not use
Ketone type materials (ex. Acetone), Ethyl alcohol, Toluene, Ethyl acid or Methyl chloride. It might
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Issued Date: Sep. 14, 2005
Model No.: N121I2 -L01
Approval
permanently damage the polarizer due to chemical reaction.
(6) Wipe off water droplets or oil immediately. Staining and discoloration may occur if they left on panel for
a long time.
(7) If the liquid crystal material leaks from the panel, it should be kept away from the eyes or mouth. In
case of contacting with hands, legs or clothes, it must be washed away thoroughly with soap.
(8) Protect the module from static electricity, it may cause damage to the C-MOS Gate Array IC.
(9) Do not disassemble the module.
(10) Do not pull or fold the lamp wire.
(11) Pins of I/F connector should not be touched directly with bare hands.
8.2 STORAGE PRECAUTIONS
(1) High temperature or humidity may reduce the performance of module. Please store LCD module within
the specified storage conditions.
(2) It is dangerous that moisture come into or contacted the LCD module, because the moisture may
damage LCD module when it is operating.
(3) It may reduce the display quality if the ambient temperature is lower than 10 ºC. For example, the
response time will become slowly, and the starting voltage of lamp will be higher than the room
temperature.
8.3 OPERATION PRECAUTIONS
(1) Do not pull the I/F connector in or out while the module is operating.
(2) Always follow the correct power on/off sequence when LCD module is connecting and operating. This
can prevent the CMOS LSI chips from damage during latch-up.
(3) The startup voltage of Backlight is approximately 1000 Volts. It may cause electrical shock while
assembling with inverter. Do not disassemble the module or insert anything into the Backlight unit.
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9 PACKING
9.1 CARTON
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9.2 PALLET
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Issued Date: Sep. 14, 2005
Model No.: N121I2 -L01
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10 DEFINITION OF LABELS
10.1 CMO MODULE LABEL
The barcode nameplate is pasted on each module as illustration, and its definitions are as following explanation.
-
X X X X X X X Y M D L N N N N
C P 1 3 5 4 4 8 - 01
01A
N141X5 - L03Rev.XX
(a) Model Name: N121I2 - L01
(b) Revision: Rev. XX, for example: C1, C2 …etc.
(c) Serial ID: X X
X X X X X Y M D L N N N N
E207943
MADE IN TAIWAN
Serial No.
Product Line
Year, Month, Date
CMO Internal Use
Revision
CMO Internal Use
Serial ID includes the information as below:
(a) Manufactured Date: Year: 1~9, for 2001~2009
Month: 1~9, A~C, for Jan. ~ Dec.
Day: 1~9, A~Y, for 1
(b) Revision Code: cover all the change
(c) Serial No.: Manufacturing sequence of product
st
to 31st, exclude I , O and U
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10.2 CARTON LABEL
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