11. General Precaution ----------------------------------------------------------------------------------- (27)
11.1 Handling
11.2 Storage
11.3 Operation
11.4 Operation Condition Guide
11.5 Others
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* Revision History
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Date
Nov
22,
2005
Rev.
No
SummaryPage
First issuedall000
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General Description
Description
LTA400HS-L01 is a color active matrix liquid crystal display (LCD) that uses amorphous
silicon TFT(Thin Film Transistor) as switching components. This model is composed of a
TFT LCD panel, a driver circuit and a back light unit. The resolution of a 40.0“ is
1920 x 1080 and this model can display up to 16.7 million colors with wide viewing angle
of 89¶ or higher in all directions. This panel is intended to support applications to provide a
excellent performance for Flat Panel Display such as Home-alone Multimedia TFT-LCD
TV, Display terminals for AV application products, and High Definition TV (HDTV).
Features
RoHS compliance (Pb-free)
High contrast ratio, high aperture ratio, fast response time
SPVA(Super Patterned Vertical Align) mode
Wide viewing angle (·178¶)
High speed response
Wide UXGA (1920 x 1080 pixels) resolution (16:9)
Low Power consumption
Direct Type 22 CCFTs(Cold Cathode Fluorescent Tube)
DE(Data Enable) mode
LVDS (Low Voltage Differential Signaling) interface (2pixel/clock)
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General Information
Module Size
952.0(H
Haze 44% , Hard-coating (3H)Surface Treatment
RGB vertical stripePixel Arrangement
TYP
54.5(D
Normally BlackDisplay Mode
) x 551.0(V
)
MAX
TYP
UnitSpecificationItems
)
mm
g13,000(Max.)Weight
mm0.46125(H) x 0.15375(W)*3Pixel Pitch
mm885.6(H) x 498.15(V)Active Display Area
colors8 bit - 16.7MDisplay Colors
pixel1920 x 1080Number of Pixels
cd/༇500 (Typ.)Luminance of White
Note
·1.0mm
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1. Absolute Maximum Ratings
If the condition exceeds maximum ratings, it can cause malfunction or unrecoverable
damage to the device.
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NoteUnitMax.Min.SymbolItem
Power Supply Voltage
Storage temperature
Glass surface
Center
DD
STG
OPR
temperature
(Operation)
T. Uniformity
Shock ( non - operating )
Vibration ( non - operating )
Note (1) Ta= 25 · 2 ¶C
(2) Temperature and relative humidity range are shown in the figure below.
a. 90 % RH Max. (Ta ˺ 39 ¶C)
b. Maximum wet-bulb temperature at 39 ¶C or less. (Ta ˺ 39 ¶C)
c. No condensation
(3) 11ms, sine wave, one time for ·X, ·Y, ·Z axis
(4) 10-300 Hz, Sweep rate 10min, 30min for X,Y,Z axis
T
nop
nop
60-20T
500T
10-
50
(1)V5.5GND-0.5V
(2)
(2),(5)
(3)G-S
(4)G1.5-V
Fig. Temperature and Relative humidity range
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(5) Definition of test point
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5mm
5mm
12
5
LCD Module (Active)
3
T should be less than 10
T
: Temperature of the center of the glass surface (Test point 5)
OPR
(ƸT = | T
OPR–TMAX
T1~ T4 : Temperature of each edge of the glass surface
: The highest temperature of the glass surface
T
MAX
4
| )
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2. Optical Characteristics
The optical characteristics should be measured in a dark room or equivalent.
Measuring equipment :
TOPCON BM-7,SPECTRORADIOMETER SR-3
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Contrast Ratio
(Center of screen)
Response
Time
Luminance of White
(Center of screen)
Color
Chromaticity
(CIE 1931)
Rising
Falling
Red
Green
Blue
White
(Ta = 25 · 2¶C, VDD=5V, fv= 60Hz, f
L
Rx
Normal
TL,R=0
TU,D=0
Viewing
Angle
TYP.
-0.03
0.648
0.331 Ry
0.281 Gx
0.598Gy
0.144 Bx
0.062By
0.280Wx
0.290Wy
=74.25MHz, IL= 6.0mArms)
DCLK
NoteUnitMax.Typ.Min.ConditionSymbolItem
-1000700C/R
1310-Tr
76-Tf
-500400Y
TYP.
+0.03
Msec
cd/m
%-72--Color Gamut
2
(3)
SR-3
(5)
BM-7
(6)
SR-3
(7),(8)
SR-3
(7)
SR-3
Hor.
Viewing
Angle
Ver.
Brightness Uniformity
(9 Points)
T
L
R
U
D
uni
C/R˻10
-8975
-8975T
Degree
-8975T
-8975T
Note (1) Test Equipment Setup
The measurement should be executed in a stable, windless and dark room between
40min and 60min after lighting the back light at the given temperature for stabilization
of the back light. This should be measured in the center of screen.
Single lamp current : 6.0mA
Environment condition : Ta = 25 · 2 ¶C
K-10000-TColor Temperature
%25--B
(7)
SR-3
(8)
SR-3
(4)
SR-3
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ྙྚྛ
ྞ
ྡ
ྠ
ྜྷྜ
ྟ
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Field Photo detector
1°SR-3
2°BM-7
TFT - LCD Module
Note (2) Definition of test point
3209601600
Photo detector
Field
SR-3 : 50㎝
BM-7 : 50㎝
LCD Panel
The center of the screen
180
540
900
Note (3) Definition of Contrast Ratio (C/R)
: Ratio of gray max (Gmax) & gray min (Gmin) at the center point 㽶 of the panel
C
/
R
G
max
G
min
Gmax : Luminance with all pixels white
Gmin : Luminance with all pixels black
Active Area
Test Point
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Note (4) Definition of 9 points brightness uniformity
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BB
Buni
Bmax : Maximum brightness
Bmin : Minimum brightness
Note (5) Definition of Response time : Sum of Tr, Tf
Display data
Optical Instruments
Response
(max min)
100
100%
90%
10%
0%
B
max
Black (data off)
White (data on)
T
R
White (data off)
T
F
TIME
Note (6) Definition of Luminance of White : Luminance of white at center point 㽶
Note (7) Definition of Color Chromaticity (CIE 1931)
Color coordinate of Red, Green, Blue & White at center point 㽶
Note (8) Definition of Viewing Angle
: Viewing angle range (C/R ı10)
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The connector for display data & timing signal should be connected.
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Ta = 25¶C
· 2 ¶C
NoteUnitMax.Typ.Min.SymbolItem
Voltage of Power Supply
Current
(a) Black
of Power
DD
I
DD
Supply
Vsync Frequency
Hsync Frequency
Main Frequency
Rush Current
V
H
DCLK
RUSH
Note (1) The ripple voltage should be controlled under 10% of VDD.
V=60Hz, fDCLK = 74.25MHz, V
(2) f
= 5.0V, DC Current.
DD
(3) Power dissipation check pattern (LCD Module only)
a) Black Pattern b) White Pattern c) N-Pattern
(1)V5.55.04.5V
mA-1800-
mA-2400-(b) White
(2),(3)
mA31002900-(c) N-Pattern
Hz-60-f
kHz-67.548f
MHz8074.2560f
(4)ATBD--I
(4) Measurement Conditions
100%
90%
10%
GND
Rush Current I
can be measured when T
RUSH
T
RUSH
=470༕
. is 470༕.
RUSH
V
DD
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3.2 Back Light Unit
The back light unit contains 22 direct-lighting type CCFTs ( Cold Cathode Fluorescent
Tube ). The characteristics of lamps are shown in the following tables.
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Ta=25 · 2¶C
NoteUnitMax.Typ.Min.SymbolItem
Lamp Current
Lamp Voltage
L
L
mArms7.06.04.0I
Vrms-1540-V
Note (1) It is defined as the time to take until the brightness reduces to 50% of its original value.
[Operating condition : Ta = 25·2, IL = 6.0mArms(typ.), For single lamp only. ]
HOT 1
HOT 2
Inverter
Inverter
Inverter
Inverter
HOT 1
HOT 2
LCD
Module
HOT 21
HOT 21
(1)Hour--50,000HrOperating Life Time
HOT 22
HOT 22
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When products are shipped, incoming inspection should be carried out with a
sampling inspection based on MIL-STD-105E level II by AQL 1.0%.
CHANGE CONTROL
Design of the product may be changed regarding the specifications, appearance, parts
used, circuits, etc. for product improvement. If a design change is judged to affect the
specifications of this product, supplier should inform customer of the change in advance.
QUALITY CONTROL
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In the event of a product failure under normal operating conditions, a product trouble
or a functional disorder that can be deemed to be the responsibility of supplier, supplier
should repair the fault or replace the product free of charge within one year from
the product delivery date. However, supplier does not take responsibility for the product
quality in the case of modifications not specified by supplier.
MAINTENANCE
The specifications of the functions of maintenance parts may be partially changed
within the range which provides equivalent or better quality.
In principle, maintenance parts should be product units.
When stopping manufacturing this product, supplier should notify customer in advance.
HANDLING OF DOUBTFUL POINTS
Any doubt not stipulated in this specification is to be resolved by mutual agreement
between customer and supplier, and supplier should make efforts for improvement
in good faith.
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(a) When the Module is assembled, it should be attached to the system firmly
using all mounting holes. Be careful not to twist and bend the Module.
(b) Because the inverter use high voltage, it should be disconnected from power
before it is assembled or disassembled.
(c) Refrain from strong mechanical shock and / or any force to the Module.
In addition to damage, this may cause improper operation or damage to the Module
and CCFT back light.
(d) Note that polarizers are very fragile and could be damage easily.
Do not press or scratch the surface harder than a HB pencil lead.
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(e) Wipe off water droplets or oil immediately. If you leave the droplets for a long
time, staining or discoloration may occur.
(f) If the surface of the polarizer is dirty, clean it using absorbent cotton or soft cloth.
(g) Desirable cleaners are water, IPA(Isopropyl Alcohol) or Hexane.
Do not use Ketone type materials(ex. Acetone), Ethyl alcohol, Toluene, Ethyl acid
or Methyl chloride. It might permanent damage to the polarizer due to chemical
reaction.
(h) If the liquid crystal material leaks from the panel, it should be kept away
from the eyes or mouth . In case of contact with hands, legs or clothes, it must
be washed away with soap thoroughly.
(i) Protect the Module from static, or the CMOS Gate Array IC would be damaged.
(j) Use finger-stalls with soft gloves in order to keep display clean during the
incoming inspection and assembly process.
(k) Do not disassemble the Module.
(l) Do not pull or fold the lamp wire.
(m) Do not adjust the variable resistor located on the Module.
(n) Protection film for polarizer on the Module should be slowly peeled off just before use
so that the electrostatic charge can be minimized.
(o) Pins of I/F connector should not be touched directly with bare hands.
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(a) Do not leave the Module in high temperature, and high humidity for a long time.
It is highly recommended to store the Module with temperature from 0 to 35
and relative humidity of less than 70%.
(b) Do not store the TFT-LCD Module in direct sunlight.
(c) The Module should be stored in a dark place. It is prohibited to apply sunlight or
fluorescent light in storing.
11.3 Operation
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(a) No Connection or disconnect the Module in the "Power On" condition.
(b) Power supply should always be turned on/off by the "Power on/off sequence"
(c) Module has high frequency circuits. Sufficient suppression to the electromagnetic
interference should be done by system manufacturers. Grounding and shielding methods
may be important to minimize the interference.
(d) The cable between the back light connector and its inverter power supply should
be connected directly with a minimized length. A longer cable between
the back light and the inverter may cause lower luminance of lamp(CCFT) and
may require higher startup voltage(Vs).
11.4 Operation Condition Guide
(a) The LCD product should be operated under normal conditions.
(b) If the product will be used in extreme conditions such as high temperature,
humidity, display patterns or operation time etc.., It is strongly recommended
to contact SEC for Application engineering advice. Otherwise, its reliability and
function may not be guaranteed. Extreme conditions are commonly found at
Airports, Transit Stations, Banks, Stock market, and Controlling systems.
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