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MODEL: MT2751A01-2
Ver. 0.1
Date: 02.Aug.2012
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MT2751A01-2 Product Specification
CSOT
Richard Lung
Aaron Tu
LC Liao
Qingyan Ji
The copyright belongs to Shenzhen China Star 1 / 30 Ver. 0.1
Optoelectronics Technology Co., Ltd.
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MT2751A01-2 Product Specification
Contents
Revision History ................................................................................................................................................ 4
1. General Description ....................................................................................................................................... 5
1.1 Product Features .................................................................................................................................. 5
1.2 Overview .............................................................................................................................................. 5
1.3 General Information ............................................................................................................................. 5
2. Absolute Maximum Ratings .......................................................................................................................... 6
2.1 Absolute Maximum Ratings ................................................................................................................ 6
2.2 Environment Requirement ................................................................................................................... 6
2.3 Package Storage.......................................................................................................................... ......... 7
3. Electrical Specification .................................................................................................................................. 8
3.1 Electrical Characteristics ..................................................................................................................... 8
3.1.1 Power Consumption .................................................................................................................. 8
3.1.2 LVDS Characteristics ................................................................................................................ 9
3.2 Backlight Unit .................................................................................................................................... 10
3.2.1 LED Light Bar Characteristics ............................................................................................... 10
3.2.2 LED Light Bar Output Connector Pin Definition ................................................................... 10
4. Electrical Block Diagram............................................................................................................................. 11
5. Input Terminal Pin Assignment ................................................................................................................... 12
5.1 TFT LCD Module .............................................................................................................................. 12
5.2 Block Diagram of Interface ............................................................................................................... 14
5.3 LVDS Interface .................................................................................................................................. 14
5.3.1 VESA Format (SELLVDS = L or Open) ................................................................................ 14
5.3.2 JEIDA Format (SELLVDS = H) ............................................................................................. 15
5.4 Color Data Input Assignment ............................................................................................................ 16
6. Interface Timing ........................................................................................................................................... 17
6.1 Timing Table (DE Only Mode) .......................................................................................................... 17
6.2 Power On/Off Sequence .................................................................................................................... 18
7. Optical Characteristics ................................................................................................................................. 19
7.1 Measurement Conditions ................................................................................................................... 19
7.2 Optical Specifications ........................................................................................................................ 20
8. Mechanical Characteristics .......................................................................................................................... 24
8.1 Mechanical Specification ................................................................................................................... 24
8.2 Packing............................................................................................................................................... 26
8.2.1 Packing Specifications ............................................................................................................ 26
9. Definition of Labels ..................................................................................................................................... 28
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MT2751A01-2 Product Specification
9.1 Module Label ..................................................................................................................................... 28
9.2 Carton Label ...................................................................................................................................... 28
9.3 Pallet Label ........................................................................................................................................ 29
10. Precautions ................................................................................................................................................. 30
10.1 Assembly and Handling Precautions ............................................................................................... 30
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Ve r si o n
Page (New)
Section
Revision by
0.1
0
.2012
Tentative
Qingyan Ji
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MT2751A01-2 Product Specification
Ve r.
Date
2.Aug
All
Revision History
Description
All
specification was first issued.
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t
Unit
Active Area
60
Bezel Opening Area
612.7
Outline Dimension
630
D:
er)
Weight
3.0
Max.
Driv
a-Si TFT
Number of Pixels
1366
pixel
Pixel Pitch
0.44475
Pixel Arrangement
RGB
Display Colors
16.7
color
8-bit
Display Mode
Tran
Surface Treatment
Anti
Luminance of White
30
cd/m²
Center
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1. General Description
1.1 Product Features
- HD Resolution (1366 x 768)
- Brightness: 300 cd/m²
- Very High Contrast Ratio: 3000:1
- Fast Response Time
- Color Saturation: 62% NTSC
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MT2751A01-2 Product Specification
- Ultra Wide Viewing Angle: 178° (H)/178° (V) (CR
10)
- Low Power Consumption: Typ. 19 W
- DE (Data Enable) Mode
- LVDS (Low Voltage Differential Signaling) Interface
- RoHS Compliance
1.2 Overview
MT2751A01-1 is a diagonal 27.5” color active matrix LCD module with edge LED backlight and 1ch-LVDS interface.
This module is a transmissive type display operating in the normally black mode. It supports 1366 x 768 HD resolution and
can display up to 16.7M colors (8-bit). Each pixel is divided into Red, Green and Blue sub-pixels which are arranged in
horizontal stripe. The backlight is without converter.
This module dedicates for LCD TV products and provides excellent performance which includes high contrast ratio, ultra
wide viewing angle, low power consumption and high color depth.
1.3 General Information
Item Specification
7.5285 (H) x 345.0240 (V) mm
Note
ing Scheme
(Sub Pixel)
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(H) x 349.0 (V) mm
.5 (H) x 371.4 (V) x 10.2 (D) mm
kg
Active Matrix -
x 768
(H) x 0.14975 (V) mm
Horizontal Stripe -
M
smissive Mode, Normally Black -
-glare, Haze 2%, Hard Coating (3H) -
0
From Bezel to Rear (Thinn
Point, Typ.
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Symbol
Power Supply Voltage
Input Signal Voltage
Light
80
60
-20
40
0
20
-40
100
90
80
40
60
20
10
00
Relative Humidity (%RH)
Temperature (ºC)
Operating Range
Storage Range
39 ºC, 90%
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2. Absolute Maximum Ratings
2.1 Absolute Maximum Ratings (TA = 25 ± 2 °C)
The followings are maximum values which, if exceeded, may cause damage to the unit.
Item
MT2751A01-2 Product Specification
Value
Unit
Min. Max.
V
V
-0.3 13.5 V
CC
-0.3 3.6 V
IN
Bar Voltage Vw - 201.6 V
2.2 Environment Requirement
(1) Temperature and relative humidity range are shown as below.
1
Fig. 2.1 Operating and storage environment
(a) 90%RH maximum (T
(b) Wet-bulb temperature should be 39 ºC maximum (T
< 39 ºC).
A
> 39 ºC).
A
(c) No condensation.
(2) The storage temperature is between - 20 ºC to 60 ºC, and the operating ambient temperature is between 0 ºC to 50 ºC.
The maximum operating temperature is based on the test condition that the surface temperature of display area is less than
or equal to 65 ºC with LCD module in a temperature controlled chamber alone. Thermal management should be considered
in final product design to prevent the surface temperature of display area from being over 65 ºC. The range of operating
temperature may degrade in case of improper thermal management in the end product design.
(3) The TFT module including glass should be avoided any shock or vibration.
While testing shock and vibration, the fixture holding the module should be assured to be hard and rigid enough to prevent
the module twisted or bent by the fixture. The test conditions should be less than:
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Shock (Non-operating): 35 G, 11 ms, half sine wave, 1 time for ± X, ± Y, ± Z.
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MT2751A01-2 Product Specification
Vibration (Non-operating): Random 1.0 Grms, 10 ~ 200 Hz, 10 min, 1 time for each X, Y, Z.
2.3 Package Storage
When storing modules as spares for a long time, please follow the precaution instructions:
(1) Do not store the module in high temperature and high humidity for a long time. It is highly recommended to store the
module with temperature from 0 ºC to 35 ºC in normal humidity.
(2) The module shall be stored in a dark area and avoided to be exposed in direct sunlight or fluorescent light.
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Symbol
Unit
Note
Min.
Typ.
Max.
Power Supply Voltage
10.8
12.0
13.2 V
)
Rush Current
- - 3 A
)
Power Supply
Current
White Pattern
-
0.12
0.16 A
)
Vertical
-
0.30
0.39 A
Black Pattern
-
0.12
0.16 A
GND
V
0.1
V
CC
V
470 μs
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3. Electrical Specification
3.1 Electrical Characteristics
3.1.1 Power Consumption (TA = 25 ± 2 ºC)
Parameter
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MT2751A01-2 Product Specification
Value
V
I
I
Stripe I
CC
RUSH
CC
CC
I
CC
Note:
(1) The ripple voltage should be controlled less than 10% of V
(2) Measurement condition: V
rising time = 470 μs.
CC
x
CC
Fig. 3.1 VCC rising time condition
CC
CC
(1
(2
(3
.
VCC
x 0.9
(3) Measurement condition: V
A. White Pattern B. Vertical Pattern
= 12 V, TA = 25 ± 2 ºC, F = 60 Hz. The test patterns are shown as below.
CC
C. Black Pattern
Fig. 3.2 Test patterns
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Symbol
Unit
Note
Min.
.
Max.
LVDS Interface
Differential Input High
Threshold Voltage
+ 100
mV
1)
Differential Input Low
Threshold Voltage
100
V
Common Input
Differential
| 100 - 600
mV
Terminating Resistor
- 100
ohm
CMOS Interface
Input High Threshold
V
Input Low Threshold Voltage
0
V
VTH
VTL
|VID|
VCM
GND
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3.1.2 LVDS Characteristics
Parameter
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MT2751A01-2 Product Specification
Value
Typ
Voltage V
Input Voltage |V
R
Voltage
Note:
(1) The LVDS input signal has been defined as follows:
V
TH
V
TL
CM
ID
T
V
IH
V
IL
- - -
1.0
2.7
- -
1.2
1.4
-
- 3.3
- 0.6
m
V
(
Fig. 3.3 LVDS input signal
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Symbol
Unit
Note
Min.
Typ.
Max.
Power Consumption
15.34
16.99
(1)
Light Bar
-
201.6 V
Light Bar
0.075 -
(1)
Lifetime
TBD
Hrs
(2)
No.
Symbol
1
VLED+
Positive of LED String
NC
-
#1
#3
CN1
CN1
#3
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3.2 Backlight Unit
3.2.1 LED Light Bar Characteristics (TA = 25 ± 2 ºC)
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MT2751A01-2 Product Specification
Parameter
Value
P
Voltage Vw
Current IL
-
BL
-
W
-
A
Note:
(1) Dimming ratio = 100% (Max.) (T
= 25 ± 5 ºC, Turn on for 45minutes).
A
(2) The Lifetime is defined as the time which luminance of the LED decays to 50% compared to the initial value, Operating
condition: Continuous operating at Ta = 25 ± 2 ºC, I
= mA.
L
3.2.2 LED Light Bar Output Connector Pin Definition
Light bar cable CN1: CI0113S0000 (Cvilux) or equivalent (see Note (1))
Pin
Description
Note
2
For CSOT internal only (2)
3
VLED
Negative of LED String
Note:
(1) The direction of pin assignment is shown as below:
Fig. 3.4 Light bar cable connector direction sketch map
(2) For CSOT internal only, please let it open.
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Data Driver
Converter
X + C Board
Controller
Input Connector
Data
Cvilux:
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4. Electrical Block Diagram
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MT2751A01-2 Product Specification
Scan Driver
V
CC
CI0103S0000(3pin)
Timing
DC/DC
GAMMA
Voltage
TFT LCD Panel
(1366 x 768 x 3)
Backlight
Unit
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o.
Power supply: +12V
Power supply: +12V
Power supply: +12V
Power supply: +12V
Ground
Ground
Ground
Ground
LVDS data format selection
No connection
Ground
Negative transmission data of pixel 0
Positive transmission data of pixel 0
Ground
Negative transmission data
Positive transmission data of pixel 1
Ground
Negative transmission data of pixel 2
Positive transmission data of pixel 2
Ground
Negative of clock
Positive of clock
Ground
Negative transmission data of pixel 3
Positive transmission data of pixel 3
Ground
For CSOT Users Only
28
For CSOT Users Only
For CSOT Users Only
Ground
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5. Input Terminal Pin Assignment
5.1 TFT LCD Module
X + C Board CN1: CT000020-3033 (FCN) or equivalent (see Note (1))
MT2751A01-2 Product Specification
Pin N
Symbol Description Note
1 VCC
2 VCC
3 VCC
4 VCC
5 GND
6 GND
7 GND
8 GND
9 SELLVDS
10
11
12
13
14
15
NC
GND
RX0-
RX0+
GND
RX1-
(2)
of pixel 1
16
17
18
19
20
21
22
23
24
25
26
27
29
30
RX1+
GND
RX2-
RX2+
GND
RXCLK-
RXCLK+
GND
RX3-
RX3+
GND
NC
NC
NC
GND
(3)
(3)
(3)
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# 1
# 30
# 1
# 30
CN1
CN1
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Note:
(1) The direction of pin assignment is shown as below:
Fig. 5.1 LVDS connector direction sketch map
(2) High: connect to + 3.3 V ė JEIDA format; Low: connect to GND or Open ė VESA format.
(3) For CSOT internal only, please let it open.
MT2751A01-2 Product Specification
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B1 B0 G5 G4 G3 G2 G1
RSVD B7 B6 G7 G6 R7 R6
DE VS HS B5 B4 B3 B2
G0 R5 R4 R3 R2 R1 R0
LV C K1 N / LV C K 1 P
LV1N0/ LV1P0
LV1N1/ LV1P1
LV1N2/ LV1P2
LV1N3/ LV1P3
Connector
Timing Controller
100Ω
100Ω
100Ω
100Ω
100Ω
LV C K1 P
LV
CK1P
LV 1N 3
LV 1P 1
LV
1
LV 1N 2
LV 1N 0
LV 1P 0
LV
1
P
0
LV 1N 1
LV 1P 2
LV
1
P2
LV C K1 N
LV 1P 3
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5.2 Block Diagram of Interface
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MT2751A01-2 Product Specification
Fig. 5.2 Block diagram of interface
Attention:
(1) LCD module uses a 100 ohms (Ω) resistor between positive and negative lines of each receiver input.
(2) LVDS cable impedance shall be 50 ohms per signal line or about 100 ohms per twist-pair line respectively.
5.3 LVDS Interface
5.3.1 VESA Format (SELLVDS = L or Open)
Fig. 5.3 VESA format
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B3 B2 G7 G6 G5 G4 G3
RSVD B1 B0 G1 G0 R1 R0
DE VS HS B7 B6 B5 B4
G2 R7 R6 R5 R4 R3 R2
LV C K1 N / LV C K 1 P
LV1N0/ LV1P0
LV1N1/ LV1P1
LV1N2/ LV1P2
LV1N3/ LV1P3
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5.3.2 JEIDA Format (SELLVDS = H)
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MT2751A01-2 Product Specification
Fig. 5.4 JEIDA format
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Red
Green
Blue
MSB
LSB
MSB
LSB
MSB
LSB
R7
R6
R5
R4
R3
R2
R1
R0
G7
G6
G5
G4
G3
G2
G1
G0
B7
B6
B5
B4
B3
B2
B1
B0
Basic Colors
Black
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0
0
0
0 0 0
0
Red 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0
Green 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 Blue 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1
1
Cyan 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1
Magenta
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1
1
Yellow 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 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 1 1 1 1 1
1
Gray Scale of
Red
Red (0) / Dark
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Red (1) 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0
:
:
: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
:
:
:
:
:
: : :
:
: : : : : : :
:
Red (254)
1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
0 0 0
0
0
0 0 0
0
Red (255)
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0
0 0 0
0
0
0 0 0
0
Gray Scale of
Green
Green (0) / Dark
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0
0
0
0 0 0
0
Green (1)
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1 0 0
0
0
0 0 0
0
:
:
: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
:
:
:
:
:
: : :
:
: : : : : : :
:
Green (254)
0 0 0 0 0 0 0 0 1 1 1 1 1 1 1
0 0 0
0
0
0 0 0
0
Green (255)
0 0 0 0 0 0 0 0 1 1 1
1 1 1 1 1 0 0
0
0 0 0 0 0
Gray Scale of
Blue
Blue (0) / Dark
0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0
0
0 0 0 0 0
Blue (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
:
:
: : : : : : : : : : : : : : : : : : : : : : :
:
:
:
:
:
:
:
:
:
:
:
:
:
: : :
:
:
:
: : : : :
:
Blue (254)
0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 1 1
1
1 1 1 1 0
Blue (255)
0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 1 1
1
1 1 1 1 1
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5.4 Color Data Input Assignment
The brightness of each primary color is based on the 8-bit gray scale data input for each color. The higher the binary input,
the brighter the color. The table below provides the assignment of the color versus.
MT2751A01-2 Product Specification
Data Signal
Data Input Color
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Attention:
0: Low level voltage; 1: High level voltage.
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Symbol
Min.
Typ.
Max.
Unit
LV DS
Frequency
(=
CLK
)
50.0
75.4 80.0
MHz
Vertical
Ter m
Frame Rate
47 60 63
Hz
Vertical Frequency
47.0 48.4
60.9
KHz
Total
784
806
1015
T
TVB
Display
Blank
16 38
247
Horizontal
Ter m
Total
1460
1560
2000
T
THB
Display
Blank
94
194
634
TVD
TVB
TV
TH
DE
THB
Valid Display Data
T
CLK
DCLK
DE
DATA
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6. Interface Timing
6.1 Timing Table (DE Only Mode)
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MT2751A01-2 Product Specification
Signal Item
Clock
F
CLK
Note
1 / T
F
F
V
T
T
T
T
VD
VB
V
768 T
H
T
H
H
T
H
T
CLK
= TVD +
V
= THD+
H
T
T
HD
HB
1366 T
CLK
T
CLK
Attention:
(1) The module is operated in DE only mode, H sync and V sync input signal have no effect on normal operation.
THD
Fig. 6.1 Interface signal timing diagram
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Fig
BLU On/Off
Parameter
Min.
Typ.
Max.
ms
00
ms
ms
50%
T6
0.1
CC
Power Off
50%
T5
T4
0 V
0 V
T3
T1
0.1 VCC
T2
Valid Data
Power On
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MT2751A01-2 Product Specification
6.2 Power On/Off Sequence
To prevent a latch-up or DC operation of LCD module, the power on/off sequence should be as the diagram below.
LVDS & Option Signal
V
Attention:
. 6.2 Power on/off sequence
Values
Unit
T1 0.5
- 10
ms
T2 0 - - ms
T3 0 - -
T4 10
T5 500
T6 100
- - ms
- -
- -
(1) The supply voltage of the external system for the module input should follow the definition of V
CC
.
(2) Apply the lightbar voltage within the LCD operation range. When the backlight turns on before the LCD operation or the
LCD turns off before the backlight turns off, the display may momentarily become abnormal screen.
(3) In case that V
is in off level, please keep the level of input signals on the low or high impedance. If T2 < 0, that may
CC
cause electrical overstress.
(4) T4 should be measured after the module has been fully discharged between power off and on period.
(5) Interface signal shall not be kept at high impedance when the power is on.
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Ambient Temperature
Ambient Humidity
LVDS
Driving Signal
Refer
LED Driving Current
Vertical Refresh Rate
r
S = πr²
For Square
Z
Z
500pixels
N means
N =
S
A
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7. Optical Characteristics
7.1 Measurement Conditions
The table below is the test condition of optical measurement.
Item Symbol Value Unit
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MT2751A01-2 Product Specification
T
H
A
A
25 r 2
50 r 10
ºC
% RH
Supply Voltage VCC 12 V
I
F
to the typical value in Chapter 3: Electrical Specification
75 mA
L
60 Hz
R
To avoid abrupt temperature change during optical measurement, it’s suggested to warm up the LCD module more than 45
minutes after lighting the backlight and in the windless environment.
To measure the LCD module, it is suggested to set up the standard measurement system as Fig. 7.1. The measuring area S
should contain at least 500 pixels of the LCD module as illustrated in Fig. 7.2 (A means the area allocated to one pixel). In this
model, for example, the minimum measuring distance Z is 370 mm when T is 2 degree. Hence, 500 mm is the typical
measuring distance. This measuring condition is referred to 301-2H of VESA FPDM 2.0 about viewing distance, angle, and
angular field of view definition.
T
T
Fig. 7.1 The standard set-up system of measurement
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Fig. 7.2 The area S contains at least 500 pixels to be measured
ı
the actual number of the pixels in the area S.
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Symbol
Min.
Typ.
Max.
Unit
Static Contrast Ratio
CR
Normal direction at
center point of the
LCD Module
2400 3000 - -
(1
Response
- 6.5 - ms
(3) Center Luminance
250
300
-
cd/m2
(2
Uniformity of
-
70 - - %
(2
Color
Chromaticity
(CIE1931)
Red
Typ.
- 0.03
TBD
Typ.
+ 0.03
-
(2
TBD
-
Green
TBD
-
TBD
-
Blue
TBD
-
TBD
-
White
0.280
-
0.290
-
Color Gamut
CG - 62
-
% NTSC
Viewing Angle
Horizontal
CR
80
89
-
Deg.
(7
80
89
-
Vertical
80
89
-
80
89
-
CR-W
CR-D
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7.2 Optical Specifications
The table below of optical characteristics is measured by MINOLTA CS2000, MINOLTA CA310, ELDIM OPTI
Scope-SA and ELDIM EZ Contrast in dark room.
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MT2751A01-2 Product Specification
Item
Time T
L
White Screen
R
R
G
G
B
B
W
W
T
L
W
X
TH = 0q, TV = 0q
Y
X
Y
X
Y
X
Y
H+
Condition
Note
) (2)
) (4)
) (5)
) (6)
T
H-
t 10
T
V+
T
V-
Note:
(1) Definition of static contrast ratio (CR):
It’s necessary to switch off all the dynamic and dimming function when measuring the static contrast ratio.
Static Contrast Ratio (CR) =
CR-W is the luminance measured by LMD (light-measuring device) at the center point of the LCD module with
full-screen displaying white. The standard setup of measurement is illustrated in Fig. 7.3; CR-D is the luminance measured
by LMD at the center point of the LCD module with full-screen displaying black. The LMD in this item is CS2000.
(2) The LMD in the item could be a spectroradiometer such as (KONICA MINOLTA) CS2000, CS1000(TOPCON), SR-UL2
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or the same level spectroradiometer. Other display color analyzer (KONICA MINOLTA) CA210, CA310 or (TOPCON)
BM-7 could be involved after being calibrated with a spectroradiometer on each stage of a product.
)
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Luminance
of
Current Frame
Y:
t
X to Y
100%
Brighter State
10%
0%
Time
Luminance
X:
100%
Darker State
Black & White
LCD Module
90%
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Fig. 7.3 The standard setup of CR measurement
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MT2751A01-2 Product Specification
LMD
(3) Response time T
time matrix in which each element t
luminance ratios among 0%, 25%, 50%, 75%, and 100% luminance. The transition time t
is defined as the average transition time in the response time matrix. The table below is the response
L
is the transition time from luminance ratio X to Y. X and Y are two different
X to Y
is defined as the time taken
X to Y
from 10% to 90% of the luminance difference between X and Y (X < Y) as illustrated in Fig.7.4. When X > Y, the
definition of t
optimized on refresh rate F
Measured
Transition Time
Ratio
t
means the transition time from luminance ratio X to Y.
X to Y
is the time taken from 90% to 10% of the luminance difference between X and Y. The response time is
X to Y
= 60Hz.
r
Luminance Ratio of Previous Frame
0% 25% 50% 75% 100%
0%
25%
50%
75%
100%
t
t
0% to 25%
t
0% to 50%
t
0% to 75%
t
0% to 100%
25% to 0%
t
25% to 50%
t
25% to 75%
t
25% to 100%
t
50% to 0%
t
50% to 25%
t
50% to 75%
t
50% to 100%
t
75% to 0%
t
75% to 25%
t
75% to 50%
t
75% to 100%
t
100% to 0%
t
100% to 25%
t
100% to 50%
t
100% to 75%
Luminance
t
100%
90%
10%
0%
Darker state
X: 0%, 25% 50%, 75%, 100%
0%, 25%, 50%, 75%,
Fig. 7.4 The definition of t
Xto Y
0%, 25%, 50%, 75%, 100%
Y: 0%, 25% 50%, 75%, 100%
Brighter state
X to Y
Time
All the transition time is measured at the center point of the LCD module by ELDIM OPTI Scope-SA.
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White
LCD Module
LMD
V/2
V
H/2
H
H/4
H/2
H/4
V/4
V/4
(1)
(4)
(3)
(2)
(5)
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(4) Definition of center luminance (LW):
The luminance is measured at the center point of the LCD module with full-screen displaying white. Fig. 7.5 shows the
standard setup of luminance measurement.
Fig. 7.5 The standard setup of luminance measurement
(5) Definition of uniformity of white screen:
MT2751A01-2 Product Specification
The luminance Li (i from 1 to 5) is measured at the 5 points defined in Fig. 7.6. H and V indicate active area.
From the measured set of luminance values Li (i from 1 to 5), the minimum luminance is denoted as L
maximum luminance is denoted as L
Uniformity = L
min
/ L
x 100%.
max
. The uniformity of white screen is defined according to
max.
and the
min
Fig. 7.6 Symbol “ + ” defines the 5 measuring locations (1), (2), (3) ··· (5)
(6) Definition of color chromaticity:
Each chromaticity coordinates (x, y) are measured in CIE1931 color space when full-screen displaying primary color R, G,
B and white. The color gamut is defined as the fraction in percent of the area of the triangle bounded by R, G, B
coordinates and the area is defined by NTSC 1953 color standard in the CIE color space. Chromaticity coordinates are
measured by CS2000 and the standard setup of measurement is shown in Fig. 7.7.
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Colors
LCD Module
LMD
H+
H-
V-
V+
Z
Y
X
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Fig. 7.7 The standard setup of color chromaticity measurement
(7) Definition of viewing angle coordinate system (TH, TV):
The contrast ratio is measured at the center point of the LCD module. The viewing angles are defined at the angle that the
contrast ratio is larger than 10 at four directions relative to the perpendicular direction of the LCD module (two vertical
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MT2751A01-2 Product Specification
angles: up T
and down TV-; and two horizontal angles: right TH+ and left TH-) as illustrated in Fig. 7.8. The contrast ratio
V+
is measured by ELDIM EZ Contrast.
Fig. 7.8 Viewing angle coordination system
T
T
T
T
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8. Mechanical Characteristics
8.1 Mechanical Specification
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MT2751A01-2 Product Specification
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Global LCD Panel Exchange Center
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MT2751A01-2 Product Specification
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