8. General Precaution ------------------------------------------------------------------------------ (33)
8.1 Handling
8.2 Storage
8.3 Operation
8.4 Others
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PRODUCT INFORMATION
General Description
Description
LTM230TT02 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 23” is 2048 x
1152 and this model can display up to 16.7 millions colors.
Features
High contrast ratio, high aperture structure, High color gamut(92% NTSC,CIE1976)
TN (Twisted Nematic) mode
Wide Viewing Angle
High speed response
WDXGA (2048 x 1152 pixels) resolution
Low power consumption
DE (Data Enable) only mode
LVDS (Low Voltage Differential Signaling) interface (2pixel/clock)
Compact Size Design
RoHS, TCO 03’ compliance
PRODUCT INFORMATION
Applications
Workstation & desktop monitors
Display terminals for AV application products
Monitors for industrial machine
* If the module is used to other applications besides the above, please contact SEC
in advance.
General Information
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ARC-Glare (2H), Reflection Ratio 2%Surface Treatment
UnitSpecificationItems
mm0.249(H) x 0.249(W)Pixel Pitch
mm509.952(H) x 286.848(V)Active Display Area
colors16.7M (Hi-FRC)Display Colors
pixel2,048 x 1,152Number of Pixels
RGB vertical stripePixel Arrangement
Normally WhiteDisplay Mode
Note
typW(34.5W)Power Consumption
cd/㎡300(Typ.)Luminance of White
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Mechanical Information
PRODUCT INFORMATION
PRODUCT INFORMATION
Max.
534.5
Module
size
Note (1) Mechanical tolerance is ± 0.5mm unless there is a special comment.
If the condition exceeds maximum ratings, it can cause malfunction or unrecoverable
damage to the device.
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Power Supply Voltage
Data Signal
Storage temperature
Center of Glass surface temperature
(Operation)
Shock ( non - operating )
Vibration ( non - operating )
Note (1) Ta= 25 ± 2 °C
DD
sig
STG
OPR
nop
nop
NoteUnitMax.Min.SymbolItem
(1)V6.5GND-0.5V
V5-V
60-25T
500T
℃
℃
(2)
(2)
(3)(5)G50-S
(4)(5)G1.5-V
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PRODUCT INFORMATION
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(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
(5) At vibration and shock test, the fixture which holds the module to be tested has to be
hard and rigid enough so that the module would not be twisted or bent by the fixture.
(39,90)
(39,90)
(50,50.4)
(50,50.4)
(60,27.7)
(60,27.7)
25,5)
((--25,5)
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Fig. Temperature and Relative humidity range
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PRODUCT INFORMATION
2. Optical Characteristics
PRODUCT INFORMATION
The optical characteristics should be measured in a dark room or equivalent.
The measurement should be executed in a stable, windless and dark room between
30min 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 : 7.5mA
Environment condition : Ta = 25 ± 2 °C
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L
θ
R
θ
U
θ
D
uni
Field Photo detector
CR≥10
Photo detector
-8070
-8070
Degrees
-8070
-8070
%25--B
(8)
EZ-
Contrast
(4)
SR-3
2°SR-3
TFT - LCD Module
Field
SR-3 : 40㎝
RD-80S : 50㎝
LCD Panel
The center of the screen
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Note (2) Definition of test point
B
−
max
G
min
512 1024 1536
PRODUCT INFORMATION
PRODUCT INFORMATION
Active Area
6
: Test Point
Note (3) Definition of Contrast Ratio (C/R)
: Ratio of gray max (Gmax) & gray min (Gmin) at the center point⑤ of the panel
Note (4) Definition of 9 points brightness uniformity
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Buni
=×
100
321
G
CR
=
Gmax : Luminance with all pixels white
Gmin : Luminance with all pixels black
BB
( maxmin)
879
max
288
45
576
864
Bmax : Maximum brightness
Bmin : Minimum brightness
Note (5) Definition of Response time : Sum of Tr, Tf
Display Data White(TFT off) Black(TFT on) White(TFT off)
Optical Instruments
Response
100%
90%
10%
0%
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PRODUCT INFORMATION
PRODUCT INFORMATION
Note (6) Definition of Luminance of White : Luminance of white at center point⑤
Note (7) Definition of Color Chromaticity (CIE 1931, CIE1976)
Color coordinate of Red, Green, Blue & White at center point⑤
Note (8) Definition of Viewing Angle
: Viewing angle range (CR >10)
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Note (9) Color Grayscale Linearity
a. Test image : 100% full white pattern with a test pattern as below
b. Test pattern : Squares, 40mm by 40mm in size, filled with 255, 225, 195, 165, 135
and 105 grays steps should be arranged at the center⑤ of the screen.
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c. Test method
-1stgray step : move a square of 255 gray level should be moved into the center of the
screen and measure luminance and u’ and v’ coordinates.
- Next gray step : Move a 225 gray square into the center and measure both
luminance and coordinates, too.
d. Test evaluation
∆u'v'=(u'-u' ) + (v'-v' )
Where A, B : 2 gray levels found to have the largest color differences between them
i.e. get the largest Δu’ and Δv’ of each 6 pair of u’ and v’ and calculate the Δu’v’.
AB
2
AB
2
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3. Electrical Characteristics
3.1 TFT LCD Module
The connector for display data & timing signal should be connected.