Document Outline
- COVER
- DESCRIPTION
- FEATURES
- APPLICATIONS
- STRUCTURE AND FUNCTIONS
- BLOCK DIAGRAM
- (1) In case of use NEC recommended inverter
- (2) In case of use the inverter of customers
- OUTLINE OF CHARACTERISTICS (at room temperature)
- GENERAL SPECIFICATIONS
- ABSOLUTE MAXIMUM RATINGS
- ELECTRICAL CHARACTERISTICS
- (1) Logic, LCD driving
- (2) Backlight
- SUPPLY VOLTAGE SEQUENCE
- INTERFACE PIN CONNECTION
- (1) 6-bit interface signals, power supply
- (2) Inverter
- PIN DESCRIPTIONS
- DISPLAY COLORS vs. INPUT DATA SIGNALS
- (1) 6-bit interface signals
- INPUT SIGNAL TIMING
- (1) Input signal specifications
- (2) Definition of input signal timing
- (3) Input signal timing chart
- DISPLAY POSITION
- OPTICAL CHARACTERISTICS
- RELIABILITY TEST
- GENERAL CAUTIONS
- OUTLINE DRAWING/FRONT SIDE (Unit in mm)
- OUTLINE DRAWING/REAR SIDE (Unit in mm)
TFT COLOR LCD MODULE
NL6448BC20-08
Document No. EN0442EJ1V0DS00 (1st edition)
Date Published July 1999 P
Printed in Japan
17 cm (6.5 type), 640
480 pixels 262144 colors,
high luminance, wide viewing angle
DATA SHEET
1999
DESCRIPTION
NL6448BC20-08 is a TFT (thin film transistor) active matrix color liquid crystal display (LCD) comprising
amorphous silicon TFT attached to each signal electrode, a driving circuit and a backlight. NL6448BC20-08 has a
built-in backlight. Backlight includes long-life lamps and the lamps are replaceable.
The 17 cm diagonal display area contains 640
480 pixels and can display 262144 colors simultaneously.
NL6448BC20-08 is suitable for industrial application use, because the luminance is high, and the viewing
direction is selectable with display scan select.
FEATURES
High luminance (300 cd/m
2
, typ.)
Low reflection
Wide viewing angle with retardation film (Antiglare treatment)
Display reverse scan function
6-bit digital RGB signals
Edge type backlight with long-life-lamps (Two lamp holders, inverter-less)
Variable luminance control
Recommended inverter (Part No. 65PWB31)
Compatible to the mounting holes position of NL6448AC20-06 except for inverter.
APPLICATIONS
Measuring instruments
Display terminals for control system
Monitors for process controller
Data Sheet EN0442EJ1V0DS00
2
NL6448BC20-08
STRUCTURE AND FUNCTIONS
A color TFT (thin film transistor) LCD module is comprised of a TFT liquid crystal panel structure. LSIs for driving
the TFT array, and a backlight assembly. The TFT panel structure is created by sandwiching liquid crystal material
in the narrow gap between a TFT array glass substrate and a color filter glass substrate. After the driver LSIs are
connected to the panel, the backlight assembly is attached to the backside of the panel.
RGB (red, green, blue) data signals from a source system is modulated into a form suitable for active matrix
addressing by the onboard signal processor and sent to the driver LSIs which in turn addresses the individual TFT
cells.
Acting as an electro-optical switch, each TFT cell regulates light transmission from the backlight assembly when
activated by the data source. By regulating the amount of light passing through the array of red, green, and blue
dots, color images are created with clarity.
Data Sheet EN0442EJ1V0DS00
3
NL6448BC20-08
BLOCK DIAGRAM
100
R0-R5
100
G0-G5
100
B0-B5
Digital
signal
processor
47
CLK
100
H sync
100
V sync
47 k
100
DE
DPS
LCD timing
controller
V
CC
47 k
V
CC
Power
supply
circuit
LSIs (VCCi: 3.3 V)
Drivers
GND (SG)
Frame (FG)
Level
shift
V-driver
480 lines
1920 lines
TFT LCD panel
H: 640
3 (R, G, B)
V: 480
H-driver
Data Sheet EN0442EJ1V0DS00
4
NL6448BC20-08
(1) In case of use NEC recommended inverter
Inverter
V
DD
B
BRTL
BRTH
GNDB
Backlight
(Part No. 65PWB31)
(2) In case of use the inverter of customers
VH
Lamp
VL
Lamp
VL
VH
Backlight
OUTLINE OF CHARACTERISTICS (at room temperature)
Display area
132.48 (H)
99.36 (V) mm
Drive system
a-Si TFT active matrix
Display colors
262144
Number of pixels
640
480
Pixel arrangement
RGB vertical stripe
Pixel pitch
0.207 (H)
0.207 (V) mm
Module size
178.8 (H)
126.8 (V)
11.0 typ. (D) mm
Weight
240 g (typ.)
Contrast ratio
250:1 (typ.)
Viewing angle (more than the contrast ratio of 10:1)
Horizontal : 50
(typ. left side, right side)
Vertical
: 35
(typ. up side), 45
(typ. down side)
Designed viewing direction
wider viewing angle with contrast ratio
: up side (12 o'clock, reverse scan)
: down side (6 o'clock, normal scan)
wider viewing angle without image reversal: up side (12 o'clock, normal scan)
: down side (6 o'clock, reverse scan)
Palarizer pencil-hardness
2H (min. at JIS K5400)
Color gamut
42% (typ. center to NTSC)
Response time
16 ms (typ.) "white" to "black"
Luminance
300 cd/m
2
(typ.)
Signal system
6-bit digital signals for each of RGB primary colors,
Synchronous signals (Hsync, Vsyc), Dot clock (CLK)
Supply voltage
5.0 V (3.3 V) (Logic, LCD driving)
Backlight
Edge light type: two fluorescent lamps (cold cathode type)
Power consumption
5.0 W (typ., at 300 cd/m
2
, not include inverter less)
Data Sheet EN0442EJ1V0DS00
5
NL6448BC20-08
GENERAL SPECIFICATIONS
Item
Specifications
Unit
Module size
178.8
0.5 (H)
126.8
0.5 (V)
11.5 max. (D)
mm
Display area
132.48 (H)
99.36 (V)
mm
Number of pixels
640 (H)
480 (V)
pixel
Dot pitch
0.069 (H)
0.207 (V)
mm
Pixel pitch
0.207 (H)
0.207 (V)
mm
Pixel arrangement
RGB (Red, Green, Blue) vertical stripe
-
Display colors
262144
color
Weight
260 (max.)
g
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Rating
Unit
Remarks
V
CC
-
0.3 to 6.5
V
Supply voltage
V
DD
-
0.3 to 6.5
V
Input voltage
V
I
-
0.3 to V
CC
+ 0.3
V
Ta = 25
C
V
I
-
V
CC
< 3.0
Lamp voltage
V
L
1600
V
rms
-
Storage temp.
T
ST
-
25 to 70
C
-
Operating remp.
T
OP
0 to 60
C
module surface
Note
95% relative humidity
Ta
40
C
85% relative humidity
40 < Ta
50
C
Humidity
(no condensation)
RH
Absolute humidity shall not exceed
Ta = 50
C, 85% relative humidity level.
Ta > 50
C
Note measured at the display area
ELECTRICAL CHARACTERISTICS
(1) Logic, LCD driving
Ta = 25
C
Parameters
Symbols
Min.
Typ.
Max.
Unit.
Remarks
Supply voltage
V
CC
4.75
(3.0)
5.0
(3.3)
5.25
(3.6)
V
-
Logic input "L" voltage
V
IL
0
-
V
CCi
0.3
V
Logic input "H" voltage
V
IH
V
C C i
0 . 7
-
V
CC
V
CMOS level
Note 2
Supply current
I
CC
-
200
Note 1
(320)
450
(600)
mA
V
CC
= 5.0 V
(V
CC
= 3.3 V)
Notes 1. Checker flag pattern (in EIAJ ED-2522)
2. V
CCi
= 3.3 V : V
CCi
is given by DC/DC converter in the LCD module.
Data Sheet EN0442EJ1V0DS00
6
NL6448BC20-08
(2) Backlight
Ta = 25
C
Parameters
Symbols
Min.
Typ.
Max.
Unit.
Remarks
Lamp current
I
L
2.0
5.0
6.0
mArms
with one lamp
Lamp voltage
V
L
-
400
-
Vrms
-
-
-
720
Ta = 0
C
Lamp turn on voltage
V
S
-
-
590
Vrms
Ta = 25
C
Oscillator frequency
F
t
50
54
58
kHz
Note
Note Recommended value of "F
t
"
F
t
is within the specification.
and
F
t
=
1
4th
th
n
: Hsync period
: a natural number (1, 2, 3, )
(2n 1)
If F
t
is out of the recommended value, interference between F
t
frequency and Hsync frequency may cause
beat on the display.
SUPPLY VOLTAGE SEQUENCE
V
CC
Signal
0 V
4.75 V (3.0 V)
4.75 V (3.0 V)
t < 150 ms
0 < t < 35 ms
0 < t < 35 ms
Power-on
Power-off
VALID
0 V
*1 The supply voltage for input signals should be the same as V
CC
.
*2 Apply V
DD
B within the LCD operation period. When the backlight turns on before LCD operation or the LCD
operation turns off before the backlight turn off, the display may momentarily become white.
*3 When the power is off, please keep whole signals (Hsync, Vsync, CLK, DE, and DATA) low level or high
impedance.
Data Sheet EN0442EJ1V0DS00
7
NL6448BC20-08
INTERFACE PIN CONNECTION
Module side connector
Mating connector
CN31 IL-310-T31PB-VF (No. 1 to 31)
IL-310-T31S-VF
Supplier: Japan Aviation Electronics
or
Industry Limited (JAE)
DF9-31S-1V or DF9M-31S-1R
Supplier: HIROSE ELECTRIC CO., LTD
(1) 6-bit interface signals, power supply
Pin No.
Symbols
Function
Pin No.
Symbols
Function
1
GND
Ground
17
G4
Green data
2
CLK
Dot clock
18
G5
Green data (MSB)
3
Hsync
Horizontal synchronous
19
GND
Ground
4
Vsync
Vertical synchronous
20
B0
Blue data (LSB)
5
GND
Ground
21
B1
Blue data
6
R0
Red data (LSB)
22
B2
Blue data
7
R1
Red data
23
B3
Blue data
8
R2
Red data
24
B4
Blue data
9
R3
Red data
25
B5
Blue data (MSB)
10
R4
Red data
26
GND
Ground
11
R5
Red data (MSB)
27
DE
Data enable
12
GND
Ground
28
V
CC
Power supply
13
G0
Green data (LSB)
29
V
CC
Power supply
14
G1
Green data
30
N.C.
Non-connection (Open)
15
G2
Green data
31
DPS
Scan Direction select
16
G3
Green data
Notes 1. V
CC
: All V
CC
terminals should be connected to V
CC
.
2. DPS: Normal scan is "L" or "Open". And reverse scan is "H".
3. During the operation, do not change the operation mode: e.g. scan direction.
LSB : Least Significant Bit
MSB: Most Significant Bit
Data Sheet EN0442EJ1V0DS00
8
NL6448BC20-08
(2) Inverter
<2-1> In case of use NEC recommended inverter
Inverter side connector 1
Mating connector 1
CN1 IL-Z-6PL-SMTY
IL-Z-6S-S125C3
Supplier: Japan Aviation Electronics Industry Limited (JAE)
Pin No.
Symbols
Function
Pin No.
Symbols
Function
1
GNDB
Backlight ground
4
V
DD
B
Power supply
2
GNDB
Backlight ground
5
BRTL
Luminance control input
3
V
DD
B
Power supply
6
BRTH
Luminance control input
Inverter side connector 2
Mating connector 2 (Lamp side)
CN2 and CN3 SM02 (8.0) B-BHS-TB
BHR-03VS-1
Supplier: J.S.T TRADING COMPANY, LTD.
Pin No.
Symbols
Function
1
VH
High voltage terminal
2
N.C.
Non-connection
3
GNDB
Backlight ground
Notes 1. A way of luminance control by a variable resistor
BRTL
BRTH
R
Mating variable resistor
Minimum luminance (50%)
Maximum luminance (100%)
: 10 k
5%
: R = 0
: R = 10 k
2. A way of luminance control by a voltage
The range of input voltage between BRTH and GNDB is as follows.
Minimum luminance (50%) : 1.5 V
Maximum luminance (100%) : 1.9 V
Data Sheet EN0442EJ1V0DS00
9
NL6448BC20-08
3. Connector location
LCD module
Upper side
<Rear view>
CN31
To CN2
or CN3
To CN2
or CN3
Lower side
3
2
1
<Pin arrangement
of CN2 and CN3>
1
3
31
2
4
30
<Pin arrangement of CN31>
3
2
1
CN3
CN1
CN2
Recommended inverter
Inverter
<Pin arrangement of CN2 and CN3>
1
2
3
4
5
6
<Pin arrangement of CN1>
(Part No. 65PWB31)
Data Sheet EN0442EJ1V0DS00
10
NL6448BC20-08
<2-2> In case of use the inverter of customers
Module side connector
Mating connector
CN2 and CN3: BHR-03VS-1
CN2 and CN3: SM03 (4.0) B-BHS-1-TB
Supplier: J.S.T TRADING COMPANY. LTD.
Supplier: J.S.T TRADING COMPANY.LTD.
Pin No.
Symbols
Function
1
VH
High voltage terminal (The cable color is white.)
2
N.C.
non-connection
3
VL
Low voltage terminal (The cable color is gray.)
LCD module
Upper side
<Rear view>
CN31
To CN2
or CN3
To CN2
or CN3
Lower side
3
2
1
1
3
31
2
4
30
<Pin arrangement of CN31>
PIN DESCRIPTIONS
Symbols
Functions
Logic
Descriptions
Vsync
Vertical sync.
Negative
Vertical synchronous signal
Hsync
Horizontal sync.
Negative
Horizontal synchronous signal
CLK
Dot clock
Negative
Timing signal for display data. The video signal is
sampled at the falling edge of DOTCLK.
R0 to R5
G0 to G5
B0 to B5
Display data
Positive
6 bits digital signals for each of RGB primary colors.
DE
Data enable signal
Positive
Data enable signal
Back-porch (thb and tvb) can be changed when DE is
high. Don't fix "DE = Low", if not, the display will have
un-uniformity.
DPS
Scan direction select
-
Note
V
CC
Power supply
-
+5.0 V (+3.3 V)
GND
Ground
-
Logic ground for V
CC
Note DPS: DPS changes display scan direction.
GND or Open = Normal scan
V
CC
= Reverse scan
See 7-8. DISPLAY POSITION about another way for reversible scan.
Data Sheet EN0442EJ1V0DS00
11
NL6448BC20-08
DISPLAY COLORS vs. INPUT DATA SIGNALS
(1) 6-bit interface signals
Data signals (0: Low level, 1: High level)
Display colors
R5 R4 R3 R2 R1 R0
G5 G4 G3 G2 G1 G0
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
Blue
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
Red
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
Magenta
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
1
1
Green
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
Cyan
0
0
0
0
0
0
1
1
1
1
1
1
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 grayscale
Black
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
Dark
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
Bright
1
1
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
Red
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
Green grayscale
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
0
0
0
0
0
1
0
0
0
0
0
0
Dark
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
Bright
0
0
0
0
0
0
1
1
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
0
0
0
Green
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
Blue grayscale
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
0
0
0
0
0
0
0
0
0
0
0
1
Dark
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
Bright
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
0
Blue
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
Note Colors are developed in combination with 6 bit signal (64 steps in grayscale) of each primary red, green,
and blue color.
This process can result in up to 262144 (64
64
64) colors.
Data Sheet EN0442EJ1V0DS00
12
NL6448BC20-08
INPUT SIGNAL TIMING
(1) Input signal specifications
Parameters
Symbols
Min.
Typ.
Max.
Unit
Remarks
Frequency
1/tc
21.0
25.175
29.0
MHz
39.722 ns (typ.)
Duty
tch/tc
0.4
0.5
0.6
-
-
CLK
Rise, fall
tcrf
-
-
10
ns
-
30.0
31.778
33.6
s
Period
th
-
800
-
CLK
31.468 kHz (typ.)
Display period
thd
-
-
25.422
640
-
-
s
CLK
-
Front-porch
thf
-
0
0.636
16
-
-
s
CLK
-
Pulse width
thp
-
10
3.813
96
-
-
s
CLK
-
Back-porch
thb
-
5
1.907
48
-
-
s
CLK
-
*) thp + thb
64
144
-
CLK
-
CLK-Hsync timing
thch
12
-
-
ns
-
Hsync-CLK timing
thcs
8
-
-
ns
-
Hsync-Vsync timing
tvh
15
-
-
ns
-
Vsync-Hsync timing
tvs
15
-
-
ns
-
Hsync
Rise, fall
thrf
-
-
10
ns
-
16.1
16.683
17.2
ms
Period
tv
-
525
-
H
59.94 Hz (typ.)
Display period
tvd
-
-
15.253
480
-
-
ms
H
-
Front-porch
tvf
-
1
0.381
12
-
-
ms
H
-
Pulse width
tvp
-
2
0.063
2
-
-
ms
H
-
Back-porch
tvb
-
4
0.985
31
-
-
ms
H
-
*) tvp + tvb
6
33
-
H
-
Vsync
Rise, fall
-
-
10
ns
-
CLK-DATA timing
tds
8
-
-
ns
-
DATA-CLK timing
tdh
12
-
-
ns
-
DATA
R0 to R5
G0 to G5
B0 to B5
Rise, fall
tdrf
-
-
10
ns
-
DE-CLK timing
tes
8
-
-
ns
CLK-DE timing
teh
12
-
-
ns
DE
Rise, fall
terf
-
-
10
ns
-
Note All parameters should be kept within the specified range.
Data Sheet EN0442EJ1V0DS00
13
NL6448BC20-08
(2) Definition of input signal timing
Vsync
Display period
DE
<Vertical>
tv
tvp
tvb
tvf
Note 1
tvd
Hsync
Display period
<Horizontal>
th
thp
thb
thf
Note 1
thd
DE
Notes 1. Display period does not exist as signals.
2. Set the total of thp + thb and tvp + tvb as the table of input signal timing, otherwise display position is
shifted to right or left side, or to up or down side.
Data Sheet EN0442EJ1V0DS00
14
NL6448BC20-08
V
cci
0.5
CLK
V
IL
V
IH
V
cci
0.5
(G0 to G5)
V
IL
V
IH
V
cci
0.5
DE
V
IL
V
IH
V
cci
0.5
CLK
V
cci
0.5
Hsync
V
IL
V
IH
V
cci
0.5
Hsync
V
cci
0.5
Vsync
V
IL
V
IH
tc
tch
tcrf
tcrf
tds
tdh
tdrf
tdrf
terf
terf
tes
teh
tes
teh
thch
thcs
thrf
tvh
tvs
tvrf
(R0 to R5)
(B0 to B5)
DATA
INVALID
INVALID
V
IH
= V
CCi
0.7 (min.)
V
IL
= V
CCi
0.3 (max.)
V
CCi
= 3.3 V: V
CCi
is given by DC/DC converter in the LCD module.
Data Sheet EN0442EJ1V0DS00
15
NL6448BC20-08
(3) Input signal timing chart
Hsync
DE
G0 to G5
DE
Hcync
CLK
DE
Vsync
tvp
tvb
480H (fixed)
1H
tvf
thp
thb
640CLK (fixed)
1CLK
thf
R0 to R5
B0 to B5
G0 to G5
R0 to R5
B0 to B5
G0 to G5
R0 to R5
B0 to B5
1 2 3
1
INVALID
D (X, 0)
D (X, Y)
D (X, 479)
INVALID
(Note: X = 0 to 639)
INVALID
D (0, Y) D (1, Y)
D (X, Y)
D (638, Y) D (639, Y)
INVALID
1
2
1
INVALID
D (0, Y) D (1, Y)
INVALID
D (639, Y)
(Note: Y = 0 to 479)
Data Sheet EN0442EJ1V0DS00
16
NL6448BC20-08
DISPLAY POSITION
Normal scan: DPS = "L" (factory set)
D (0, 0)
D (1, 0)
D (X, 0)
D (638, 0)
D (639, 0)
D (0, 1)
D (1, 1)
D (X, 1)
D (638, 1)
D (639, 1)
D (0, Y)
D (1, Y)
D (X, Y)
D (638, Y)
D (639, Y)
D (0, 478)
D (1, 478)
D (X, 478)
D (638, 478)
D (639, 478)
D (0, 479)
D (1, 479)
D (X, 479)
D (638, 479)
D (639, 479)
Reverse scan: DPS = "H"
D (639, 479)
D (638, 479)
D (X, 479)
D (1, 479)
D (0, 479)
D (639, 478)
D (638, 478)
D (X, 478)
D (1, 478)
D (0, 478)
D (639, Y)
D (638, Y)
D (X, Y)
D (1, Y)
D (0, Y)
D (639, 1)
D (638, 1)
D (X, 1)
D (1, 1)
D (0, 1)
D (639, 0)
D (638, 0)
D (X, 0)
D (1, 0)
D (0, 0)
Note Below drawings show relations between the scan direction and the viewing direction.
CN
31
CN
31
Normal scan
Reverse scan
D (0, 0)
D (639, 0)
D (0, 479)
D (639, 479)
D (0, 0)
D (639, 0)
D (0, 479)
D (639, 479)
Data Sheet EN0442EJ1V0DS00
17
NL6448BC20-08
OPTICAL CHARACTERISTICS
Ta = 25
C Note 1
Parameters
Symbols
Conditions
Min.
Typ.
Max.
Unit
Remarks
Contrast ratio
CR
Note 2
150
250
-
-
Note 3
Luminance
Lu
Note 2
250
300
-
cd/m
2
Note 4
Luminance uniformity
-
max./min.
-
-
1.25
-
Note 5
Reference data
Parameters
Symbols
Conditions
Min.
Typ.
Max.
Unit
Remarks
t on
White to black
-
16
40
ms
Response time
t off
Black to white
-
55
90
ms
Note 6
Color gamut
C
at center, to NTSC
35
42
-
%
-
-
-
-
x +
CR > 10,
y =
0
45
50
-
deg.
Horizontal
x
-
CR > 10,
y =
0
45
50
-
deg.
y +
CR > 10,
x =
0
30
35
-
deg.
Viewing
angle range
Vertical
y
-
CR > 10,
x =
0
40
45
-
deg.
Note 7
Notes 1. V
CC
= 5.0 V, IL = 5.0 mA rms, with NEC recommended inverter (Part No.65PWB31).
2. Viewing angle:
x =
0
,
y =
0
, At center.
Best contrast angle:
x =
0
,
y =
-
10
, At center.
3. The contrast ratio is calculated by using the following formula.
Luminance with all pixels in "white"
Contrast ratio (CR) =
Luminance with all pixels in "black"
The Luminance is measured in darkroom.
4. The luminance is measured after 20 minutes from the module works, with all pixels in "white". Typical
value is measured after luminance saturation.
1
Photodetector (TOPCON BM-5A)
50 cm
LCD MODULE
Data Sheet EN0442EJ1V0DS00
18
NL6448BC20-08
5. The luminance uniformity is calculated by using following formula.
Maximum luminance
Luminance uniformity =
Minimum luminance
The luminance is measured at near the five points shown below.
(160)
Column
Line
(320)
(480)
(120)
(240)
(360)
1
2
3
4
5
6. Definition of response time is as follows.
Photodetector output signal is measured when the Luminance changes "white" to "black". Response
time is the time between 10% and 100% of the photodetector output amplitude.
0%
10%
100%
90%
ton
toff
White
Black
Time
Display color
Luminance
range
7. Definitions of viewing angle are as follows.
Left
Right
Lower
Perpendicular
Upper
12 o'clock
x+
x
y+
y
Data Sheet EN0442EJ1V0DS00
19
NL6448BC20-08
RELIABILITY TEST
No.
Test items
Test conditions
Judgement
1.
High temperature/humidity
operation
50
2
C, 85% relative humidity
240 hours
Display data is black.
Note 1
2.
High temperature (operation)
60
3
C
240 hours
Display data is black.
Note 1
3.
Heat cycle (operation)
<1> 0C
3C 1 hour
55C
3C 1 hour
<2> 50 cycles, 4 hours/cycle
<3> Display data is black.
Note 1
4.
Thermal shock (non-operation)
<1> 25C
3C 30 minutes
70C
3C 30 minutes
<2> 100 cycles
<3> Temperature transition time within 5 minutes
Note 1
5.
Vibration (non-operation)
<1> 5 - 100 Hz, 2G
1 minute/cycle,
X, Y, Z direction
<2> 120 times each direction
Note 1
Note 2
6.
Mechanical shock (non-
operation)
<1> 55 G, 11 ms
X, Y, Z direction
<2> 5 times each direction
Note 1
Note 2
7.
ESD (operation)
150 pF, 150
,
10 kV
9 places on a panel
Note 3
10 times each place at one-second intervals
Note 1
8.
Dust (operation)
15 kinds of dust (JIS Z 8901)
Hourly 15 seconds stir, 8 times repeat
Note 1
Notes 1. Display function is checked by the same condition as LCD module out-going inspection.
2. Physical damage.
3. Discharge points are shown in the figure.
Data Sheet EN0442EJ1V0DS00
20
NL6448BC20-08
GENERAL CAUTIONS
Next figures and sentence are very important, please understand these contents as follows.
CAUTION
This figure is a mark that you will get hurt and/or the module will have damages when you make
a mistake to operate.
This figure is a mark that you will get an electric shock when you make a mistake to operate.
This figure is a mark that you will get hurt when you make a mistake to operate
CAUTION
(1) Caution when taking out the module
<1> Pick the pouch only, when taking out the module from a carrier box.
(2) Cautions for handling the module
<1> As the electrostatic discharges may break the LCD module, handle the LCD module with care against
electrostatic discharges.
<2>
As the LCD panel and backlight element are made from fragile glass material, impulse and
pressure to the LCD module should be avoided.
<3> As the surface of polarizer is very soft and easily scratched, use a soft dry cloth without chemicals for
cleaning.
<4> Do not pull the interface connectors in or out while the LCD module is operating.
<5> Put the module display side down on a flat horizontal plane.
<6> Handle connectors and cables with care.
<7> When the module is operating, do not lose CLK, Hsync, or Vsync signal. If any one or more of these
signals is lost, the LCD panel would be damaged.
<8> The torque for mounting screw should never exceed 0.20 Nm (2 kgfcm).
(3) Cautions for the atmosphere
<1> Dew drop atmosphere must be avoided.
<2> Do not store and/or operate the LCD module in high temperature and/or high humidity atmosphere.
Storage in an electro-conductive polymer packing pouch and under relatively low temperature atmosphere
is recommended.
<3> This module uses cold cathod fluorescent lamps. Therefore, the life time of lamp becomes short
conspicuously at low temperature.
<4> Do not operate the LCD module in high magnetic field.
(4) Caution for the module characteristics
<1> Do not apply any fixed patterns data signal to the LCD module at product aging. Applying fixed pattern for
a long time may cause image sticking.
<2> This module has the retardation film which may cause the variation of the color hue in the different viewing
angles. The ununiformity may appear on the screen under the high temperature operation.
Data Sheet EN0442EJ1V0DS00
21
NL6448BC20-08
(5) Other cautions
<1> Do not disassemble and/or reassemble LCD module.
<2> Do not readjust variable resistors nor switches etc.
<3> When returning the module for repair or etc, pack the module not to be broken. We recommend the
original shipping packages.
Liquid Crystal Display has the following specific characteristics. There are not defects nor malfunctions.
The display condition of the LCD module may be affected by the ambient temperature.
The LCD module uses cold cathode tube for backlighting. Optical characteristics, like luminance or
uniformity, will change during time.
Uneven brightness and/or small spots may be noticed depending on different display patterns.
Data Sheet EN0442EJ1V0DS00
22
NL6448BC20-08
OUTLINE DRAWING/FRONT SIDE (Unit in mm)
MODULE CENTER
MADE IN JAPAN
ES8C10004
K1028B2015035 98.12.18/
NL6448BC20-08
(46.95)
3.30.3
2.50.3
7.60.5
3.30.3
2.50.3
1720.3
1720.3
(3.4)
(86)
178.80.5
(86)
960.3
FRONT VIEW
ACTIVE AREA
CENTER
4- 2.8
MOUNTING HOLE
(15.4)
(48)
126.80.5
980.3
(49)
(14.4)
2.50.3
3.30.3
(9.3)
11.5 MAX.
2.50.3
(1)
3.30.3
7.60.5
(7.8)
(10.1)
Data Sheet EN0442EJ1V0DS00
23
NL6448BC20-08
OUTLINE DRAWING/REAR SIDE (Unit in mm)
THE TFT COLOR LCD
PANEL CONTAINS COLD CATHODE
FLOURESCENT LAMPS. PLEASE
FOLLOW LOCAL ORDINANCES
OR REGULATIONS FOR ITS
DISPOSAL
K
1028
B
2015035
Name
65BLM04
O
-
Pal No.
NION VOLTEGE
CAUTION
(20.4)
(66.4)
(9.2)
(9.7)
(9.2)
(169)
(9.75)
112
10
112
10
(4.35)
(4.35)
(17.95)
(17.95)
I/F CONNECTOR
BHR-03VS-1 (JST)
I/F CONNECTOR
IL-310-T31P-VF (JAE)
I/F CONNECTOR
BHR-03VS-1 (JST)
(20.4)
REAR VIEW
RISK OF ELECTRIC SHOCK.
DISCONNECT THE ELECTRIC
POWER BEFORE SERVICE.
Notes 1. Not shown tolerances of the dimensions are
0.5 mm.
2. The value in parenthese are for reference.
NL6448BC20-08
DATA SHEET
No part of this document may be copied or reproduced in any form or by any means without the prior written
consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in
this document.
NEC Corporation 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 device described herein or any other liability arising from
use of such device. No license, either express, implied or otherwise, is granted under any patents, copyrights or
other intellectual property rights of NEC Corporation or others.
While NEC Corporation has been making continuous effort to enhance the reliability of its Electronic
Components, the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to
persons or property arising from a defect in an NEC Electronic Components, customers must incorporate
sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features.
NEC devices are classified into the following three quality grades:
"Standard", "Special", and "Specific". The Specific quality grade applies only to devices developed based on a
customer designated "quality assurance program" for a specific application. The recommended applications of a
device depend on its quality grade, as indicated below. Customers must check the quality grade of each device
before using it in a particular application.
Standard: Computers, office equipment, communications equipment, test and measurement equipment, audio
and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial
robots
Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster
systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support)
Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support
systems or medical equipment for life support, etc.
The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books.
If customers intend to use NEC devices for applications other than those specified for Standard quality grade,
they should contact an NEC sales representative in advance.
Anti-radioactive design is not implemented in this product.
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