Mitsubishi AA141TH01 Specification

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TENTATIVE
All information in this technical data sheet is tentative
Preliminary
14.1” WXGA
TECHNICAL SPECIFICATION
and subject to change w
ithout notice.
AA141TH01
MITSUBISHI ELECTRIC Corp.
Date: Nov.6,’08
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CONTENTS
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No.
-- COVER
-- CONTENTS 1 APPLICATION 3 2 OVERVIEW 3
ABSOLUTE MAXIMUM RATINGS 5 4 ELECTRICAL 5
INTERFACE PIN CONNECTION 8, 9
INTERFACE TIMING 10, 11, 12, 13, 14
6 7 BLOCK 8 MECHANICAL SPECIFICATION 16, 17 9
OPTICAL CHARACTERISTICS 18, 19, 20
DIAGRAM 15
CHARACTERISTICS 5, 6, 7
Item Page
1 2
4
10 RELIABILITY TEST CONDITION 21 11 OTHER FEATURE 22 12
HANDLING PRECAUTIONS FOR TFT-LCD MODULE 23, 24, 25
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1. APPLICATION
This specification applies to
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color TFT-LCD module, AA141TH01.
These sp (“MITSUBISHI) and include materials protected under copyright of MITSUBISHI. No part of this document may be reproduced in any form or by any means without the express written permission of MITSUBISHI.
MITSUBISHI does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a product specified in this document. No license, express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of MITSUBISHI or of others.
MITSUBISHI classifies the usage of the TFT-LCD module as follows. Please confirm the usage before using the product.
(1) Standard Usage
(2) Special Usage
(3) Specific Usage
ecification papers are the proprietary product of Mitsubishi Electric Corporation
omputers, office equipment, factory automation equipment, test and measurement equipment, communications, transportation equipment(automobiles, ships, trains, etc.), provided, however, that operation is not influenced by TFT-LCD directly.
Medical equipment, safety equipment, transportation equipment, provided, however, that TFT-LCD is necessary to its operation.
Cockpit Equipment, military systems, aerospace equipment, nuclear reactor control systems, life support systems and any other equipment. MITSUBISHI should make a contract that stipulate apportionment of responsibilities between MITSUBISHI and our customer.
The product specified in this document is designed for “Standard Usage” unless otherwise specified in this document. If customers intend to use the product for applications other than those specified for “Standard Usage”, they should first contact MITSUBISHI sales representative for it's intended use in writing.
MITSUBISHI has been making continuous effort to improve the reliability of its products. Customers should implement sufficient reliability design of their application equipments such as redundant system design, fail-safe functions, anti-failure features.
MITSUBISHI assumes no responsibility for any damage resulting from the use of the product that does not comply with the instructions and the precautions specified in this document.
Please contact and consult a MITSUBISHI sales representative for any questions regarding this product.
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2. OVERVIEW
AA141TH01 is 14.1” color TFT-LCD (Thin Film Tr comp
osed of LCD panel, driver ICs, control circuit, and backlight unit.
By applying 6 bit or 8 bit digital data, 1280u 800, 262k-color or 16.7M-color images are displayed on the 14.1” diagonal screen. Input power voltage is 3.3V for LCD driving. The type of data and control signals are digital and transmitted via LVDS interface per Typ. 71MHz clock cycle.
Inverter for backlight is not included in this module. General specifications are summarized in the following table:
ITEM SPECIFICATION Display Area (mm) Number of Dots
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ansistor Liquid Crystal Display) module
303.36 (H)u 189.6 (V) (14.1-inch diagonal)
1280 u3 (H) u 800 (V) Pixel Pitch (mm) Color Pixel Arrangement RGB vertical stripe Display Mode Normally white TN Number of Color 262k(6 bit/color), 16.7M(8 bit/color)
Luminance
Wide Viewing Angle Technology Optical Compensation Film Viewing Angle (CR t10) 80a80q(H),70a80q(V) Surface Treatment Anti-glare and hard-coating 3H Electrical Interface LVDS (6 bit/8 bit) Optimum Viewing Angle (Contrast ratio) 6 o’clock Module Size (mm) Module Mass (g) 1200 Backlight Unit CCFL, 4-tubes, edge-light, replaceable
Characteristic value without any note is typical value.
(cd/m
2
) 1000
0.237 (H) u 0.237 (V)
326.0 (W)u 216.5 (H)u 16.0 (D)
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3. ABSOLUTE MAXIMUM RATINGS
ITEM SYMBOL
Power Supply Voltage for LCD VCC 0 4.0 V
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MIN. MAX UNIT
Logic Input Voltage VI Lamp Lamp Lamp
Op Op
S
Voltage VL 0 2000 Vrms Current IL 0 10 mArms Frequency FL -- 100 kHz
Note 1,2)
eration Temperature(Panel) eration Temperature(Ambient)
torage Temperature
Note 2)
T
T
te 2)
No
T
op
(Panel)
op
(Ambient)
g
st
0.3 VCC0.3
202020
70 °C 70 ° 80 °C
[Note]
1) Measured at the center of active area and at the center of panel back surface
2) Top,Tstgd 40qC : 90%RH max. without condensation Top,Tstg > 40qC : Absolute humidity shall be less than the value of 90%RH at 40qC without
cond
ensation.
4. ELECTRICAL CHARACTERISTICS
(1) TFT-LCD
Ambient temperature: Ta = 25
ITEM SYMBOL MIN. TYP. MAX. UNIT Remarks
Po
wer Supply Voltages for LCD VCC 3.0 3.3 3.6 V *1)
℃
Power Supply Currents for LCD Permissive Input Ripple Voltage
High VIH
Logic Input Voltage
Low VIL
*1) Power and signals sequence:
t1 d10ms 200 ms d t4 0 < t2 d 50 ms 200 ms d t5 0 < t3 d 50 ms 0 d t6
0.9VCC
CD Power Supply
L
Logic Signal㩷
0.1VCC
Backlight Power Supply
ICC -- 570 960 mA *2)
VRP -- -- 100 mVp-p VCC = +3.3V
2.4 -- VCC V MODE 0 -- 0.8 V MODE
VCC
0.9VCC
ta
da
0.1VCC
C
0.1VC
t2
t1
VL
t3
t4
t5 t6
RGB DATA, DCLK, DENA, MODE
data:
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VCC-dip conditions:
1) When 2.6 V
2) Whe
n VCC < 2.6 V
d
VCC < 3.0 V, td d 10 ms
VCC-dip conditions should also follow the power and signals sequence.
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6 V
2.
td
0 V
3.
VCC
2) VCC = +3.3 V , f
*
=49.4 kHz, fV=60 Hz, f
H
=71 MHz
CLK
Display image of typical is 256-gray-bar pattern (8 bit), 800 line mode.
*3) Fuse
Parameter
VCC
) The power supply capacity should be designed to be more than the fusing current.
*
Fuse Type Name Supplier Remark
FCC16202AB Kamaya Electric Co., Ltd. *)
(2) Backlight Ta = 25
ITEM SYMBOL MIN. TYP. MAX. UNIT Remarks
Lamp Voltage VL -- 620 -- Vrms IL = 6.5 mArms Lamp
Lamp Frequency
Starting Lamp Voltage VS
Lamp Life Time LT 50000 -- -- h
Current IL 3.5 6.5 7.5 mArms *2),*6)
FL 40 -- 70 kHz *3)
1300 -­1500 --
1650 --
--
--
Vrms
--
Ta = 25°
Ta = 0°C
Ta = 20°
*4),*5), IL = 6.5 mArms
Continuous operation
[Note]
*1) Please use synchronous inverter. *2) Lamp
Current measurement method (The current meter is inserted in low voltage line.)
A
A
er
Inv
A
A
erter
Pow
Supply
LC
D
Module㩷
CTL CTL
CTH
CTH
CTL
CTL CTH
CTH
℃
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*3) Lamp frequency of inverter may produce interference with horizontal synchronous frequency,
and this may cause horizontal beat on the display. Therefore, please adjust lamp frequency, and keep inverter as far from module as possible or use electronic shielding between inverter and module to avoid the interference.
*4) Lamp life time is defined as the time either when the brightness becomes 50% of the initial
value, or when the starting lamp voltage does not meet the value specified in this table.
*5) The life time of the backlight depends on the ambient temperature. The life time will decrease
under low/high temperature.
*6) Please use the inverter which has symmetrical current wave form as follows,
The degree of unbalance: less than 10%
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The ratio of wave height: less than
I
PH
I
PL
CURRENT WAVE FORM
IPH:
High side peak
: Lo
I
w side peak
PL
±10%
2
The degree of unbalance = |I
The ratio of wave height = I
- IPL| /
PH
(or IPL) / Irms
PH
Irms
100(%)
u
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5. INTERFACE PIN CONNECTION
(1) CN 1(Interface Signal)
Used connector: FI-SEB20P-HFE (JAE)
Corresponding connector: FI-S20S[for discrete Wire], FI-SE20ME[for FPC] (JAE)
Pin
No.
Symbol
1 VCC 2 VCC 3 GND 4 GND 5
Link 0
R0, R1, R2, R3, R4, R5, G0 R2, R3, R4, R5, R6, R7, G2
6 Link 0+ R0, R1, R2, R3, R4, R5, G0 R2, R3, R4, R5, R6, R7, G2 R0, R1, R2, R3, R4, R5, G0 7 GND
1, G2, G3, G4, G5, B0, B1 G3, G4, G5, G6, G7, B2, B3
8
Link 1
9
Link 1+ G1, G2, G3, G4, G5, B0, B1 G3, G4, G5, G6, G7, B2, B3 G1, G2, G3, G4, G5, B0, B1
G
10 GND 11
Link 2
Link 2+ B2, B3, B4, B5, DENA B4, B5, B6, B7, DENA B2, B3, B4, B5, DENA
12
B2, B3, B4, B5, DENA B4, B5, B6, B7, DENA
13 GND 14
CLKIN
Clo
15 CLKIN+ 16 GND 17
Link3
8 Link3+ See: *2) R0, R1, G0, G1, B0, B1 R6, R7, G6, G7, B6, B7
1
See: *2
19 MODE Low=ISP 6 bit compatibility mode 20 NC
*1) Metal frame is connected to signal GND. *2) Recommended wiring of Pin 17,18 (6 bit input)
Function (ISP 6 bit compatibility mode)
6 bit input 8 bit input
+3.
3 V Power supply
+3.3 V Power supply
) R0, R1, G0, G1, B0, B1
Input signal should be low.
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GND GND
GND
GND
GND
m
ck
Clo
ck +
GND
Function (ISP 8 bit
compatibility mode)
m m m m
R0, R1, R2, R3, R4, R5, G0
m
G1, G2, G3, G4, G5, B0, B1
m
B2, B3, B4, B5, DENA
m
m m
R6, R7, G6, G7, B6, B7
High=ISP 8 bit compatibility mode
m
LVDS transmitter
(2) CN 2,4(Backlight)
Backlight-side connector: BHSR-02VS-1 (JST) Inverter-sid
(3) CN 3,5(Backlight)
Backlight-side connector: BHR-02VS-1 (JST) Inverter-side connector: SM02(4.0)B-BHS(LF)(SN) (JST)
VCC
6
0
8
LOW data
Pi Pi
n 17 n 18
or
Ω
6
0
2
Ω
e connector: SM02B-BHSS(LF)(SN) (JST)
Pin No. Symbol Function
1, 2 CTH
VBLH
High Voltage
(
[Note]
VBLH-VBLL = VL
Pin No.
2 CTL
1,
Symbol Function
VBLL
Low Voltage
(
[Note]
VBLH-VBLL = VL
Pi Pi
n 17 n 18
)
)
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(4) ISP data mapping
a. ISP 6 bit compatibility mode(6 b it input)
C
LKIN+/-
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1C
LK
L
ink0+/-
L
ink1+/-
ink2+/-
L
b. ISP 6 bit compatibility mode(8 bit input)
KIN+/-
CL
ink0+/-
L
ink1+/-
L
L
ink2+/-
R1G0 R5 R4 R3 R2 R0
G2B1 B0 G5 G4 G3 G1
A
B5 B4 B2
B3DEN
1C
LK
R3G2 R7 R6 R5 R4 R2
G4B3 B2 G7 G6 G5 G3
B5DENA B7 B6 B4
L
ink3+/-
c.
ISP 8 bit compatibility mode
KIN+/-
CL
ink0+/-
L
ink1+/-
L
L
ink2+/-
L
ink3+/-
NA
R1B1 B0 G1 G0 R0
1C
LK
R1G0 R5 R4 R3 R2 R0
G2B1 B0 G5 G4 G3 G1
B5 B4 B2
B3DE
R7B7 B6 G7 G6 R6
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6. INTERFACE TIMING
LVDS transmitter input signal (1) Timing Specifications
ITEM SYMBOL MIN TYP MAX UNIT
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DCLK
Frequency f Period t
Active Time Blanking Time t
CLK
CLK
t
HA
HB
50 71
5 14.1 20 ns
12.
1280 1280
20 160
80 MHz
1280 t
-- t
Horizontal
4 49.4 60 kHz
42.
16.6 20.3 23.6 800 800 800 t
3 23
55 60
14.
3 16.7 18.2 ms
-- t
70 Hz
DENA
Ve
rtical
Frequency f Period t Active Time t Blanking Time t Frequency f Period t
H
H
VA
VB
V
V
[Note]
1) DENA (Data Enable) should always be positive polarity as shown in the timing specification.
2) DCLK should appear during all invalid period.
3) LVDS timing follows the timing specifications of LV
DS receiver IC: THC63LVDF84B(Thine).
4) In case of blanking time fluctuation, please satisfy following condition. t
VBn
> t
VBn-1
3(tH)
CLK
CLK
Ps
H
H
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(2) Timing Chart
a. Horizontal T imi ng Char t
DC
LK
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DATA (R,G,B)
DE
NA
Vertical Timing Chart
b.
NE DATA
LI
rst Data
Fi
1 2
t
HB
1 2 79
t
VB
3 Invalid Data Invalid Data
t
HA
tH=1
t
VA
1279 1280
/f
H
9 800 3 Invalid Data Invalid Data
st Data
La
DE
NA
tV=1
/f
V
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(3) Color Data Assignment
a. 6 bit input
COLOR
R5 R4 R3
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INPUT DATA
R DATA
R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1
G DATA B DATA
B0
B MSB LSB MSB
LS
0
BLACK
MSB LS
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 RED(63) 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 GREEN(63)
0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0
0
BASIC BLUE(63) 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1
COLOR CYAN
0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1
1 MAGENTA 1 1 1 1 1 1 0 0 0 0 0 0 1 1 1 1 1 1 YELLOW
1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0
0 WHITE 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 RED(1) 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 RED(2)
0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0
0
RED
RED(62) 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 RED(63) GREEN(1)
1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0
0
0
B
GREEN(2)
GREEN
0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0
GREEN(62) GREEN(63) BLUE(1) BLUE(2)
BLUE
0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
BLUE(62)
0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1
BLUE(63) 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1
[Note]
1) Definition of gray scale Color (n) ---
n indicates gray scale level.
Higher n means brighter level.
2) Data 1:High, 0: Low
0
0 0 1 0
0
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b. 8 bit input
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INPUT D
ATA
BASIC
COLOR
RED
GREEN
COLOR
BLACK RED(255) GREEN(255) BLUE(255) CYAN MAG YELLO WHITE
ED(1)
R
ED(2)
R
RED(255)
REEN(1)
G
REEN(2)
G
GREEN(255)
ENTA
W
R DATA G DATA B DATA
R7
R6 R5 R4 R3 R2 R1 R0 G7 G6 G5 G4 G3 G2 G1 G0 B7 B6 B5 B4 B3 B2
MSB LSB MSB LSB MSB LSB
B1 B0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1
0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0
0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1
0 0 0 0
1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0
1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1
0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0
0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0
0 0
1 1
0 0
0 0
1 1 1 1 1
1
 
0 0 0 0 0 0 0 0 0
0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0
0
0 0
0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
LUE(1)
B
LUE(2)
B
BLUE
BLUE(255)
[Note]
1) Definition of gray scale Color (n) ---
2) Data 1:High, 0: Low
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
n indicates gray scale level.
Higher n means brighter level.
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(4) Display Position and Scan Direction
D(X,Y) shows the data number of input signal for LCD panel signal processing PCB.
(1,1) D(1280,1)
D
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CN4
CN5
D
(1,800)
D(1280,800)
CN2
CN3
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7. BLOCK DIAGRAM
CN
1
Timing signal Display data
Timing
Controller
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G1
G2
Po
wer
Connector I/F
Power Supply Circuit
ers(gate)
Driv
G80
0
CCF
S1
S2
D
rivers(source)
L
TFT-LCD
9
S383
CN
CN
S3840
2, 4
1
2
1
2
3, 5
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8. MECHANICAL SPECIFICATIONS
(1) Front
Side
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(2) Rear Side
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9. OPTICAL CHARACTERISTICS
ITEM SYMBOL
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Ta=25°
CONDITION MIN TYP MAX UNIT
C, VCC=3.3V, Input Signals: Typ. Values shown in Section 6
Re
marks
Co
ntrast Ratio CR Luminance Luminance
Response Time Vie
wing
Uniformity
Horizontal
TV qTH q
Lw
'
Lw T tr
tf
TH
TV qTH q
qTH q
V
TV qTH q
TV qTH q
450 700 800 1000
-- --
-- -- *1)*2)*5)
-- cd/m
30 % *1)*3)*5)
-- 4 --
-- 12
65a65
80a
80
-- ms *1)*4)*5)
-- °
2
*1)*5)
ms *1)*4)*5)
*1)*5)
CRt10
Angle
Vertical
TV
55a
65
70a
80
-- ° *1)*5)
Image sticking tis 2 h -- -- 2 s *6)
Re
d
Co
lor Gx 0.286 0.316 0.346
oordinates
C
Green
Blue
White
Rx Ry 0.311 0.341 0.371
Gy Bx 0.122 0.152 0.182
By 0.101 0.131 0.161 Wx Wy 0.299 0.329 0.359
0.567 0.597 0.627
507 0.537 0.567 --
TV qTH q
0.
0.283 0.313 0.343
*1)*5)
[Note] These items are measured using CS1000(MINOLTA) for
color coordinates, EZContrast(ELDIM) for viewing angle and CS1000 or BM-5A(TOPCON) for others under the dark room condition (no ambient light) after more than 30 minutes from turning on the lamp unless noted.
Condition: IL = 6.5 mArms, FL=50 kHz Measurement method for luminance and color coordinates is as follows.
Photodetector
T(F
ield)
TFT-LCD module
500 mm
The luminance is measured according to FLAT PANEL DISPLAY
Luminance :T=2q (BM-5A) Color coordinates :T=1q (CS1000)
MEASUREMENTS STANDARD
(VESA Standard).
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*1) Measurement Point
Contrast Ratio, Luminance, Response Time, Viewing Angle, Color Coordinates: Display Center
Luminance Uniformity: point 1
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5 shown in a figure below
a
640
,1)
320
(1
960
*2) Definition of C
200
400
600
ontrast Ratio
1
5
3
2
4
(1280,800)
CR= Luminance with all white pixels / Luminance with all black pixels
*3) Definition of Luminance Uniformity
'Lw=[Lw(MAX)/Lw(MIN)-1]u100
*4) Definition of R
Lum
esponse Time
inance
Whi
te
90%90%
*5) Definition of V
Left (-)
LCD
tr
iewing Angle (
Up
per(+)
panel
TVT
)
H
Norm
al Axis
T
V
10%10% Black
T
+
Lower(-)
tf
Right (+)
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*6) Image sticking:
Continuously display the test pattern shown in the figure below for two-hours. Then display a completely white screen. The previous image shall not persist more than two seconds at 25°C.
s 398-402
Row
TEST PATTERN FOR IMAGE STICKING TEST
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Cols 638-642
Wh
ite
Area
Black Lines
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10. RELIABILITY TEST CONDITION
(1) Temperature and Humidity
TEST ITEM
HIGH TEMPERATURE
HIGH HUMIDITY OPERATION
HIGH TEMPERATURE OPERATION
LOW TEMPERATURE OPERATION
HIGH TEMPERATURE STORAGE 80°C, 240 h
LOW TEMPERATURE STORAGE
THERMAL SHOCK (NON-OPERATION)
(2) Shock & Vibration
ITEM CONDITIONS
CONDITIONS
C, 90%RH, 240
40°
(No cond
20°
20°
BETWEEN 20°
100 CYCLES
ensation)
70°C, 240 h
C, 240 h
C, 240 h C (1h) and 80°C(1h),
h
Shock level: 1470 m/s
SHOCK
(NON-OPERATION)
VIBRATION
(NON-OPERATION)
(3) Judgment standard
The judgment of the above tests should be made as follow:
Pass: Normal display image, no damage of the display function. (ex. no line defect)
Partial transformation of the module parts should be ignored.
Fail: No display image, damage of the display function. (ex. line defect)
Waveform: half sinusoidal wave, 2 ms Number of shocks: one shock input in each direction of three mutually perpendicular axes for a total of six shock inputs
Vibration level: 9.8 m/s Waveform: sinusoidal Frequency range: 5 to 500 Hz Frequency sweep rate: 0.5 octave /min Duration: one sweep from 5 to 500 Hz in each of three mutually
perpendicular axis(each x,y,z axis: 1 hour, total 3 hours)
2
(150G)
2
(1.
0G)
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11. OTHER FEATURE
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This LCD module complies with RoHS*) d
*)
RoHS: Restriction of the use of certain hazardous
equipment
irective.
substances in electrical and electronic
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12. HANDLING PRECAUTIONS FOR TFT-LCD MODULE
Please pay attention to the followings in handling TFT-LCD products;
(1) ASSEMBLY PRECAUTION
a. Please mount the LCD module by using mounting hole with a screw clamping torque less than
5 Nm. Please do not bend or wrench the LCD module in assembling. Please do not drop, bend
0. or twist the LCD module in handling.
b. Please design display housing in accordance with the following guide lines.
(a) Housing case must be designed carefully so as not to put stresses on LCD and not to
wrench module.
(b) Keep sufficient clearance between LCD module back surface and housing when the LCD
module is mounted. Approximately 1.0mm of the clearance in the design is recommended taking into account the tolerance of LCD module thickness and mounting structure height on the housing.
(c) When some parts, such as, FPC cable and ferrite plate, are installed underneath the LCD
module, still sufficient clearance is required, such as 0.5mm. This clearance is, especially, to be reconsidered when the additional parts are implemented for EMI countermeasure.
(d) Design the inverter location and connector position carefully so as not to give stress to
lamp cable, or not to interfere the LCD module by the lamp cable.
(e) Keep sufficient clearance between LCD module and the others parts, such as inverter and
speaker so as not to interfere the LCD module. Approximately 1.0mm of the clearance in the design is recommended.
(f) To avoid local elevation/decrease of temperature, considering location of heating element,
heat release, thermal design should be done.
c. Please do not push or scratch LCD panel surface with anything hard. And do not soil LCD
panel surface by touching with bare hands. (Polarizer film, surface of LCD panel is easy to be
flawed.) d. Please wipe off LCD panel surface with absorbent cotton or soft cloth in case of it being soiled. e. Please wipe off drops of adhesives like saliva and water on LCD panel surface immediately.
They might damage to cause panel surface variation and color change. f. Please do not take a LCD module to pieces and reconstruct it. Resolving and reconstructing
modules may cause them not to work well. g. Please do not touch metal frames with bare hands and soiled gloves. A color change of the
metal frames can happen during a long preservation of soiled LCD modules. h. Please handle metal frame carefully because edge of metal frame is very sharp. i. Please pay attention to handling lead wire of backlight so that it is not tugged in connecting
with inverter.
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j. Please connect the metal frame of LCD module to GND in order to minimize the effect of
external noise and EMI. k. Be sure to connect the cables and the connectors correctly.
(2) OPERATING PRECAUTIONS
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a. Please be sure to turn off the p
cable. b. Please do not change variable resistance settings in LCD module. They are adjusted to the
most suitable value. If they are changed, it might happen LCD does not satisfy the
characteristics specification. c. LCD backlight takes longer time to become stable of radiation characteristics in low
temperature than in room temperature. d. The interface signal speed is very high. Please pay attention to transmission line design and
other high speed signal precautions to satisfy signal specification. e. A condensation might happen on the surface and inside of LCD module in case of sudden
change of ambient temperature. Please take care so as not to cause any damage mentioned
on (1)-e. f. Please pay attention not to display the same pattern for very long time. Image might stick on
LCD. Even if image sticking happens, it may disappear as the operation time proceeds. g. Please obey the same safe instructions as ones being prepared for ordinary electronic products.
(3) PRECAUTIONS WITH ELECTROSTATICS
ower supply before connecting and disconnecting signal input
a. This LCD module use CMOS-IC on circuit board and TFT-LCD panel, and so it
affected by electrostatics. Please be careful with electrostatics by the way of your body
connecting to the ground and so on. b. Please remove protection film very slowly from the surface of LCD module to prevent from
electrostatics occurrence.
(4) STORAGE PRECAUTIONS
LCD should be stored in the room temperature environment with normal humidity. The LCD
inventory should be processed by first-in first-out method.
(5) SAFETY PRECAUTIONS
a. When you waste damaged or unnecessary LCDs, it is recommended to crush LCDs into pieces
and wash them off with solvents such as acetone and ethanol, which should later be burned. b.
If any liquid leaks out of a damaged glass cell and comes in contact with the hands, wash off
thoroughly with soap and water.
is easy to be
c. Be sure to turn off the power supply when inserting or disconnecting the cable.
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d. Inverter should be designed carefully to limit or stop its function when over current is detected
on the on the lamp.
(6)
OTHERS
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a. A strong incident light into
and other materials, which will degrade the quality of display characteristics. Please do not
expose LCD module under strong Ultraviolet rays for a long time. b. Please pay attention to a panel side of LCD module not to contact with other materials in
preserving it alone.
c. For the packaging box handling, please see and obey with the packaging specification
datasheet.
LCD panel may cause deterioration to polarizer film, color filter,
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