Document Number: DOD-PP-0955 (1st edition)
Published date: March 2010 CP(N) © NEC LCD Technologies, Ltd.
2010 All rights reserved.
1
This DATA SHEET is updated document from
PRELIMINARY DATA SHEET DOD-PP-0914(2).
All information is subject to change without notice.
Please confirm the sales representative before
starting to design your system.
TFT COLOR LCD MODULE
NL6448BC33-70D
26cm (10.4 Type)
VGA
DATA SHEET
DOD-PP-0955 (1st edition)
NL6448BC33-70D
DATA SHEET DOD-PP-0955 (1st edition) 2
INTRODUCTION
The Copyright to this document belongs to NEC LCD Technologies, Ltd. (hereinafter called "NEC").
No part of this document will be used, reproduced or copied without prior written consent of NEC.
NEC does and will not assume any liability for infringement of patents, copyrights or other intellectual
property rights of any third party arising out of or in connection with application of the products
described herein except for that directly attributable to mechanisms and workmanship thereof. No license,
express or implied, is granted under any patent, copyright or other intellectual property right of NEC.
Some electronic parts/components would fail or malfunction at a certain rate. In spite of every effort to
enhance reliability of products by NEC, the possibility of failures and malfunction might not be avoided
entirely. To prevent the risks of damage to death, human bodily injury or other property arising out
thereof or in connection therewith, each customer is required to take sufficient measures in its safety
designs and plans including, but not limited to, redundant system, fire-containment and anti-failure.
The products are classified into three quality grades: "Standard", "Special", and "Specific" of the
highest grade of a quality assurance program at the choice of a customer. Each quality grade is designed
for applications described below. Any customer who intends to use a product for application other than
that of Standard quality grade is required to contact an NEC sales representative in advance.
The Standard quality grade applies to the products developed, designed and manufactured in
accordance with the NEC standard quality assurance program, which are designed for such application as
any failure or malfunction of the products (sets) or parts/components incorporated therein a customer
uses are, directly or indirectly, free of any damage to death, human bodily injury or other property, like
general electronic devices.
Examples: Computers, office automation equipment, communications equipment, test and measurement
equipment, audio and visual equipment, home electronic appliances, machine tools, personal
electronic equipment, industrial robots, etc.
The Special quality grade applies to the products developed, designed and manufactured in accordance
with an NEC quality assurance program stricter than the standard one, which are designed for such
application as any failure or malfunction of the products (sets) or parts/components incorporated therein
a customer uses might directly cause any damage to death, human bodily injury or other property, or
such application under more severe condition than that defined in the Standard quality grade without
such direct damage.
Examples: Control systems for transportation equipment (automobiles, trains, ships, etc.), traffic control
systems, anti-disaster systems, anti-crime systems, medical equipment not specifically
designed for life support, safety equipment, etc.
The Specific quality grade applies to the products developed, designed and manufactured in accordance
with the standards or quality assurance program designated by a customer who requires an extremely
higher level of reliability and quality for such products.
Examples: Military systems, aircraft control equipment, aerospace equipment, nuclear reactor control
systems, medical equipment/devices/systems for life support, etc.
The quality grade of this produc t is the "Standard" unless otherwise specified in this document.
NL6448BC33-70D
DATA SHEET DOD-PP-0955 (1st edition) 3
CONTENTS
INTRODUCTION ........................................................................................................................................2
1. OUTLINE..................................................................................................................................................4
1.1 STRUCTURE AND PRINCIPLE ........................................................................................................4
1.2 APPLICATION....................................................................................................................................4
1.3 FEATURES..........................................................................................................................................4
2. GENERAL SPECIFICATIONS..............................................................................................................5
3. BLOCK DIAGRAM.................................................................................................................................6
4. DETAILED SPECIFICATIONS.............................................................................................................8
4.1 MECHANICAL SPECIFICATIONS...................................................................................................8
4.2 ABSOLUTE MAXIMUM RATINGS..................................................................................................8
4.3 ELECTRICAL CHARACTERISTICS.................................................................................................9
4.3.1 LCD panel signal processing board.............................................................................................9
4.3.2 Backlight lamp...........................................................................................................................10
4.3.3 Power supply voltage ripple.......................................................................................................10
4.3.4 Fuse............................................................................................................................................10
4.4 POWER SUPPLY VOLTAGE SEQUENCE.....................................................................................11
4.4.1 LCD panel signal processing board...........................................................................................11
4.4.2 LED Driver board......................................................................................................................11
4.5 CONNECTIONS AND FUNCTIONS FOR INTERFACE PINS......................................................12
4.5.1 LCD panel signal processing board...........................................................................................12
4.5.2 Backlight lamp...........................................................................................................................13
4.5.3 Positions of plug and socket ......................................................................................................13
4.6 DISPLAY COLORS AND INPUT DATA SIGNALS.......................................................................14
4.7 DISPLAY POSITIONS......................................................................................................................15
4.8 SCANNING DIRECTIONS...............................................................................................................15
4.9 INPUT SIGNAL TIMINGS ...............................................................................................................16
4.9.1 Outline of input signal timings ..................................................................................................16
4.9.2 Timing characteristics................................................................................................................17
4.9.3 Input signal timing chart............................................................................................................19
4.10 OPTICS.............................................................................................................................................22
4.10.1 Optical characteristics..............................................................................................................22
4.10.2 Definition of contrast ratio.......................................................................................................23
4.10.3 Definition of luminance uniformity.........................................................................................23
4.10.4 Definition of response times....................................................................................................23
4.10.5 Definition of viewing angles....................................................................................................23
5. ESTIMATED LUMINANCE LIFETIME............................................................................................24
6. RELIABILITY TESTS ..........................................................................................................................25
7. PRECAUTIONS .....................................................................................................................................26
7.1 MEANING OF CAUTION SIGNS....................................................................................................26
7.2 CAUTIONS........................................................................................................................................26
7.3 ATTENTIONS....................................................................................................................................26
7.3.1 Handling of the product.............................................................................................................26
7.3.2 Environment...............................................................................................................................27
7.3.3 Characteristics............................................................................................................................27
7.3.4 Others.........................................................................................................................................27
8. OUTLINE DRAWINGS.........................................................................................................................28
8.1 FRONT VIEW................................................................................................................. ...................28
8.2 REAR VIEW ......................................................................................................................................29
NL6448BC33-70D
DATA SHEET DOD-PP-0955 (1st edition) 4
1. OUTLINE
1.1 STRUCTURE AND PRINCIPLE
Color LCD module NL6448BC33-70D is composed of the amorphous silicon thin film transistor
liquid crystal display (a-Si TFT LCD) panel structure with driver LSIs for driving the TFT (Thin Film
Transistor) array and a backlight.
The a-Si TFT LCD panel structure is injected liquid crystal material into a narrow gap between the
TFT array glass substrate and a color-filter glass substrate.
Color (Red, Green, Blue) data signals from a host system (e.g. signal generator, etc.) are modulated
into best form for active matrix system by a signal processing board, and sent to the driver LSIs which
drive the individual TFT arrays.
The TFT array as an electro-optical switch regulates the amount of transmitted light from the backlight
assembly, when it is controlled by data signals. Color images are created by regulating the amount of
transmitted light through the TFT array of red, green and blue dots.
1.2 APPLICATION
• For industrial use
1.3 FEATURES
• Long life LED backlight type
• High luminance
• High contrast
• Wide viewing angle
• Wide temperature range
• 6-bit digital RGB signals
• DE (Data enable) function
• Reversible-scan direction
• Replaceable lamp holder for backlight
• Acquisition product for UL60950-1/CSA C22.2 No.60950-1-03 (File number: E170632)
• Compliant with the European RoHS directive (2002/95/EC)
NL6448BC33-70D
2. GENERAL SPECIFICATIONS
Display area 211.2 (H) × 158.4 (V) mm
Diagonal size of display 26cm (10.4 inches)
Drive system a-Si TFT active matrix
Display color 262,144 colors
Pixel 640 (H) × 480 (V) pixels
Pixel arrangement RGB (Red dot, Green dot, Blue dot) vertical stripe
Dot pitch 0.11 (H) × 0.33 (V) mm
Pixel pitch 0.33 (H) × 0.33 (V) mm
Module size 243.0 (W) × 185.1 (H) × 10.5 (D) mm (typ.)
Weight 475g (typ.)
Contrast ratio 900:1 (typ.)
Viewing angle At the contrast ratio
≥
10:1
• Horizontal: Right side 80° (typ.), Left side 80° (typ.)
• Vertical: Up side 80° (typ.), Down side 80° (typ.)
Designed viewing direction
At DPS= Low or Open: Normal scan
• Viewing direction without image reversal: Up side (12 o'clock)
• Viewing direction with contrast peak: Down side (6 o'clock)
• Viewing angle with optimum grayscale (γ≒2.2): Normal axis
(perpendicular)
Polarizer surface Antiglare
Polarizer pencil-hardness 3H (min.) [by JIS K5400]
Color gamut At LCD panel center
40% (typ.) [against NTSC color space]
Response time Ton+Toff (10%
←→
90%)
18ms (typ.)
Luminance At IL= 50mA/One circuit
450cd/m2 (typ.)
Signal system
6-bit digital signals for data of RGB colors,
Dot clock (CLK), Data enable (DE),
Horizontal synchronous signal (Hsync),
Vertical synchronous signal (Vsync)
Power supply voltage LCD panel signal processing board: 3.3V or 5.0V
Backlight
LED backlight type:
Replaceable part
• Lamp holder set: Type No. 104LHS56
Recommended LED driver board (Option)
• LED driver board :Type No. 104PW03F
Power consumption At IL= 50mA/One circuit, Checkered flag pattern
3.7W (typ.)
DATA SHEET DOD-PP-0955 (1st edition) 5
NL6448BC33-70D
DATA SHEET DOD-PP-0955 (1st edition) 6
3. BLOCK DIAGRAM
Note1: Relations between GND (Signal ground) and FG (Frame ground) in the LCD module are as
follows.
GND - FG Connected
Note2: GND and FG must be co nnected to cu stomer equipment’s ground, and it is recommended that
these grounds be connected together in customer equipment.
Host
V-driver
1,920 lines
LCD panel
H: 640 × 3 (R, G, B)
V: 480
480 lines
VCC
CLK
B0 to B5
G0 to G5
R0 to R5
DPS
DE
Vsync
Hsync
GND
100Ω
100Ω
100Ω
100Ω
100Ω
100Ω
100Ω
47kΩ
LCD module (Product)
LCD panel signal processing board
Power supply
for gradation
DC/DC
converter
Fuse
Controller
H-driver
Note1
Note2
FG
Note1
Note2
47kΩ
Cathode1-3
Anode1-3 3
3 Backlight Note3
NL6448BC33-70D
Note3: Backlight in detail
Anode 1
Backlight
Cathode 1
Anode 2
Cathode 2
Anode 3
Cathode 3
DATA SHEET DOD-PP-0955 (1st edition) 7
NL6448BC33-70D
4. DETAILED SPECIFICATIONS
4.1 MECHANICAL SPECIFICATIONS
Parameter Specification Unit
Module size 243.0 ± 0.5 (W) × 185.1 ± 0.5 (H) × 10.5 ± 0.5 (D) Note1 mm
Display area 211.2 (H) × 158.4 (V) Note1 mm
Weight 475 (typ.), 500 (max.) g
DATA SHEET DOD-PP-0955 (1st edition) 8
Note1: See "8. OUTLINE DRAWINGS".
4.2 ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Rating Unit Remarks
Power supply
voltage LCD panel signal processing board VCC -0.3 to +6.5 V
Display signals
Note1 VD V
Input voltage for
signals Function signal
Note2 VF -0.3 to VCC+0.3 V
-
Backlight Forward current IL 60 mA per one circuit
Storage temperature Tst -30 to +80 °C -
Front surface TopF -30 to +80 °C Note3
Operating temperature Rear surface TopR -30 to +80 °C Note4
≤ 95 % Ta ≤ 40°C
≤ 85 % 40°C < Ta ≤ 50°C
≤ 55 % 50°C < Ta ≤ 60°C
≤ 36 % 60°C < Ta ≤ 70°C
Relative humidity
Note5 RH
≤ 24 % 70°C < Ta ≤ 80°C
Absolute humidity
Note5 AH ≤ 70
Note6 g/m3-
Note1: CLK, Hsync, Vsync, DE, DATA (R0 to R5, G0 to G5, B0 to B5)
Note2: DPS
Note3: Measured at LCD panel surface (including self-heat)
Note4: Measured at LCD module's rear shield surface (including self-heat)
Note5: No condensation
Note6: Water amount at Ta = 80°C and RH = 24%
NL6448BC33-70D
DATA SHEET DOD-PP-0955 (1st edition) 9
4.3 ELECTRICAL CHARACTERISTICS
4.3.1 LCD panel signal processing board (Ta = 25°C)
Parameter Symbol min. typ. max. Unit Remarks
3.0 3.3 3.6 V at VCC= 3.3V
Power supply voltage VCC 4.75 5.0 5.25 V at VCC= 5.0V
- 300
Note1 410
Note2 mA at VCC= 3.3V
Power supply current ICC - 200
Note1 270
Note2 mA at VCC= 5.0V
High VDH 0.7VCC - VCC V
Logic input voltage for
display signals Low VDL 0 - 0.3VCC V
High VFH 0.7VCC - VCC V
Input voltage for DPS signal Low VFL 0 - 0.3VCC V
CMOS level
Note1: Checkered flag pattern [by EIAJ ED-2522]
Note2: Pattern for maximum current
NL6448BC33-70D
4.3.2 Backlight lamp (Ta= 25°C, Note1, Note2)
Parameter Symbol min. typ. max. Unit Remarks
Forward current IL - 50.0 55.0 mA -
15.9 18.0 20.4 Ta= +25°C
at IL= 50mA
/One circuit
14.2 - - Ta= +80°C
at IL= 50mA
/One circuit
- - 22.4 Ta= -30°C
at IL= 50mA
/One circuit
Forward Voltage VL
- - 22.6
V
Ta= -30°C
at IL= 55mA
/One circuit
Note1: Please drive with constant current.
Note2: The Luminance uniformity may be changed depending on the current variation between 3 circuits.
It is recommended that the current value difference among the circuits be less than 5%.
DATA SHEET DOD-PP-0955 (1st edition) 10
4.3.3 Power supply voltage ripple
This product works if the ripple voltage levels are over the permissible values as the following table,
but there might be noise on the display image.
Power supply voltage Ripple voltage Note1
(Measure at input terminal of power supply) Unit
3.3 V ≤ 100 mVp-p
VCC 5.0 V ≤ 100 mVp-p
Note1: The permissible ripple voltage includes spike noise.
4.3.4 Fuse
Fuse
Parameter Type Supplier
Rating Fusing current Remarks
2.0A
VCC FCC16202AB
KAMAYA ELECTRIC
Co., Ltd. 32V 4.0A Note1
Note1: The power supply’s rated current must be more than the fusing current. If it is less than the
fusing current, the fuse may not blow in a short time, and then nasty smell, smoke and so on
may occur.
NL6448BC33-70D
4.4 POWER SUPPLY VOLTAGE SEQUENCE
4.4.1 LCD panel signal processing board
0ms < t < 35ms
0ms < t < 35ms
10
μ
s
≤
Tr < 30ms
VALID period
OFF ON
3.0V or 4.75V
0V
VCC
Note1
Display signals
Function signal
Note2
Toff > 50ms
0V
ON
Note1: If there is a voltage variation (voltage drop) at the rising edge of VCC below 3.0V in "VCC =
3.3V" or 4.75V in "VCC = 5.0V", there is a possibility that a product does not work due to a
protection circuit.
Note2: Display signals (CLK, Hsync, Vsync, DE, DATA (R0 to R5, G0 to G5, B0 to B5)) and
function signal (DPS) must be set to Low or High-impedance, except the VALID period (See
above sequence diagram), in order to avoid the circuitry damage.
If some of display and function signals of this product are cut while this product is working,
even if the signal input to it once again, it might not work normally. If a customer stops the
display and function signals, VCC also must be shut down.
4.4.2 LED Driver board (Option)
Display signals
Function signal
Note1
LED backlight: ON
VALID period
Note2
Note1: These are the display and function signals for LCD panel signal processing board.
Note2: The backlight should be turned on within the valid period of display and function signals, in
order to avoid unstable data display.
DATA SHEET DOD-PP-0955 (1st edition) 11
NL6448BC33-70D
DATA SHEET DOD-PP-0955 (1st edition) 12
4.5 CONNECTIONS AND FUNCTIONS FOR INTERFACE PINS
4.5.1 LCD panel signal processing board
CN1 socket (LCD module side): DF9C-31P-1V (2∗) (Hirose Electric Co., Ltd. (HRS))
Adaptable plug: DF9-31S-1V (2∗), DF9-31S-1V (3∗) (Hirose Electric Co., Ltd. (HRS))
Pin No. Symbol Signal Remarks
1 GND Ground Note1
2 CLK Dot clock
3 Hsync Horizontal synchronous signal
4 Vsync Vertical synchronous signal
-
5 GND Ground Note1
6 R0 Red data (LSB) Least significant bit
7 R1 Red data
8 R2 Red data
9 R3 Red data
10 R4 Red data
-
11 R5 Red data (MSB) Most significant bit
12 GND Ground Note1
13 G0 Green data (LSB) Least significant bit
14 G1 Green data
15 G2 Green data
16 G3 Green data
17 G4 Green data
-
18 G5 Green data (MSB) Most significant bit
19 GND Ground Note1
20 B0 Blue data (LSB) Least significant bit
21 B1 Blue data
22 B2 Blue data
23 B3 Blue data
24 B4 Blue data
-
25 B5 Blue data (MSB) Most significant bit
26 GND Ground Note1
27 DE Selection of DE / Fixed mode High or Open: Fixed mode
Data enable signal: DE mode
28 VCC Power supply
29 VCC Power supply Note1
30 N.C. - Keep this pin Open.
31 DPS Selection of scan direction High: Reverse scan
Low or Open: Normal scan Note2
Note1: All VCC and GND terminals should be used without any non-connected lines.
Note2: See "4.8 SCANNING DIRECTIONS" .
NL6448BC33-70D
4.5.2 Backlight lamp
CN2 plug (LCD module side): SM08B-SRSS-TB (J.S.T. Mfg. Co., Ltd.)
Adaptable socket: SHR-08V-S, SHR-08V-S-B (J.S.T. Mfg. Co., Ltd.)
Pin No. Symbol Signal Remarks
1 A1 Anode1 -
2 K1 Cathode1 -
3 A2 Anode2 -
4 K2 Cathode2 -
5 A3 Anode3 -
6 K3 Cathode3 -
7 N.C. - Keep this pin Open.
8 N.C. - Keep this pin Open.
4.5.3 Positions of plug and socket
Rear side
CN1
1
31
2
30
3
CN2
Insert direction
8
1
Barcode label Name plate
DATA SHEET DOD-PP-0955 (1st edition) 13
NL6448BC33-70D
4.6 DISPLAY COLORS AND INPUT DATA SIG NALS
This product can display 262,144 colors with 64 gray scales. Also the relation between display colors
and input data signals is as follows.
Data signal (0: Low level, 1: High level)
Display colors R5 R4 R3 R2 R1 R0G5 G4 G3 G2 G1 G0B5 B4 B3 B2 B1 B0
Basic colors
Black
Blue
Red
Magenta
Green
Cyan
Yellow
White
000000
000000
111111
111111
000000
000000
111111
111111
000000
000000
000000
000000
111111
111111
111111
111111
000000
111111
000000
111111
000000
111111
000000
111111
Red gray scale
Black
dark
↑
↓
bright
Red
000000
000001
000010
:
:
111101
111110
111111
000000
000000
000000
:
:
000000
000000
000000
000000
000000
000000
:
:
000000
000000
000000
Green gray scale
Black
dark
↑
↓
bright
Green
000000
000000
000000
:
:
000000
000000
000000
000000
000001
000010
:
:
111101
111110
111111
000000
000000
000000
:
:
000000
000000
000000
Blue gray scale
Black
dark
↑
↓
bright
Blue
000000
000000
000000
:
:
000000
000000
000000
000000
000000
000000
:
:
000000
000000
000000
000000
000001
000010
:
:
111101
111110
111111
DATA SHEET DOD-PP-0955 (1st edition) 14
NL6448BC33-70D
4.7 DISPLAY POSITIONS
The following table is the coordinates per pixel (See "4.8 SCANNING DIRECTIONS".).
C (0, 0)
R G B
DATA SHEET DOD-PP-0955 (1st edition) 15
C( 0, 0) C( 1, 0) • • • C( X, 0) • • • C(638, 0) C(639, 0)
C( 0, 1) C( 1, 1) • • • C( X, 1) • • • C(638, 1) C(639, 1)
•
•
•
•
•
•
•
• • •
•
•
•
•
•
• • •
•
•
•
•
•
• • •
•
C( 0, Y) C( 1, Y) • • • C( X, Y) • • • C(638, Y) C(639, Y)
•
•
•
•
•
•
•
• • •
•
•
•
•
•
• • •
•
•
•
•
•
•
•
C( 0, 478) C( 1, 478) • • • C( X, 478) • • • C(638, 478) C(639, 478)
C( 0, 479) C( 1, 479) • • • C( X, 479) • • • C(638, 479) C(639, 479)
4.8 SCANNING DIRECTIONS
The following figures are seen from a front view. Also the arrow shows the direction of scan.
Figure1. Normal scan (DPS: Low or Open)
Note1
Figure2. Reverse scan (DPS: High)
Note1
C (0, 0)
D (0, 0)
C (0, 479)
D (0, 479) C (639, 479)
D (639, 479)
C (639, 0)
D (639, 0)
C (0, 0)
D (639, 479)
C (0, 479)
D (639, 0) C (639, 479)
D (0, 0)
C (639, 0)
D (0, 479)
Note1: Mean ing of C (X, Y) and D (X, Y)
C (X, Y): The coordinates of the display position (See "4.7 DISPLAY POSITIONS".)
D (X, Y): The data number of input signal for LCD panel signal processing board
NL6448BC33-70D
4.9 INPUT SIGNAL TIMINGS
4.9.1 Outline of input signal timings
• Horizontal signal
Horizontal front-porch (thf)
Horizontal synchronizing cycle (th)
Horizontal synchronizing pulse width (thp)
Horizontal back-porch (thb)
Horizontal display period (thd)
Hsync
Note2
Display period
DE (Data enable)
Note1
• Vertical signal
Vertical front-porch (tvf)
Vertical synchronizing cycle (tv)
Vertical synchronizing pulse width (tvp)
Vertical back-porch (tvb)
Vertical display period (tvd)
Display period
DE (Data enable)
Vsync
Note2
1 2 3 4 480 Note3
Note1
Note1: This diagram indicates virtual signal for set up to timing.
Note2: Fixed mode cannot be used while working of DE mode.
Note3: See "4.9.3 Input signal timing chart" for the pulse number.
DATA SHEET DOD-PP-0955 (1st edition) 16
NL6448BC33-70D
DATA SHEET DOD-PP-0955 (1st edition) 17
4.9.2 Timing characteristics
(a) Fixed mode (Note1)
Parameter Symbol min. typ. max. Unit Remarks
Frequency 1/tc 21.0 25.175 29.0 MHz 39.72 ns (typ.)
Duty tcd 0.4 0.5 0.6 -
CLK
Rise time, Fall time tcrf - - 10 ns -
Setup time tds 3 - - ns
CLK-DATA Hold time tdh 5 - - ns
DATA
(R0-R5)
(G0-G5)
(B0-B5) Rise time, Fall time tdrf - - 10 ns
-
30.0 31.778 33.6 μs 31.468 kHz (typ.)
Cycle th
800 CLK
Display period thd 640 CLK
Front-porch thf 16 CLK
Pulse width thp 10 96 - CLK
Back-porch thb - 48 134 CLK
-
Total of pulse width and back-porch thp + thb 144 CLK Note2
Setup time ths 3 - - ns
CLK- Hsync Hold time thh 5 - - ns
Hsync
Rise time, Fall time thrf - - 10 ns
-
16.1 16.683 17.2 ms 59.94 Hz (typ.)
Cycle tv
525 H
Display period tvd 480 H
Front-porch tvf 12 H
Pulse width tvp 1 2 - H
Back-porch tvb - 31 32 H
-
Total of pulse width and back-porch tvp + tvb 33 H Note2
Setup time tvhs 3 - - ns
Hsync-Vsync Hold time tvhh 5 - - ns
Vsync
Rise time, Fall time tvrf - - 10 ns
-
Note1: Definition of parameters is as follows.
tc = 1CLK, tcd = tch/tc, th = 1H
Note2: Keep tvp + tvb and thp + thb within the table. If it is out of specification, display position will
be shifted to right/left side or up/down.
NL6448BC33-70D
DATA SHEET DOD-PP-0955 (1st edition) 18
(b) DE mode (Note1, Note2, Note3)
Parameter Symbol min. typ. max. Unit Remarks
Frequency 1/tc 21.0 25.175 29.0 MHz 39.72 ns (typ.)
Duty tcd 0.4 0.5 0.6 -
CLK
Rise time, Fall time tcrf - - 10 ns -
Setup time tds 3 - - ns
CLK-DATA Hold time tdh 5 - - ns
DATA
(R0-R5)
(G0-G5)
(B0-B5) Rise time, Fall time tdrf - - 10 ns
-
30.0 31.778 33.6 μs 31.468 kHz (typ.)
Cycle th
- 800 - CLK
Horizontal
Display period thd 640 CLK -
16.1 16.683 17.2 ms 59.94 Hz (typ.)
Cycle tv
- 525 - H
Vertical
(One frame) Display period tvd 480 H -
Setup time tdes 3 - - ns
CLK-DE Hold time tdeh 5 - - ns
DE
Rise time, Fall time tderf - - 10 ns
-
Note1: Definition of parameters is as follows.
tc = 1CLK, tcd = tch/tc, th = 1H
Note2: Hsync signal (Pin No.3 of CN1) and Vsync signal (Pin No.4 of CN1) are not used inside the
product at DE mode.
Do not keep pin open to avoid noise pr ob lem.
Note3: Vertical cycle (tv) should be specified in integral multiple of Horizontal cycle (th).
NL6448BC33-70D
4.9.3 Input signal timing chart
(a) Fixed mode
DATA SHEET DOD-PP-0955 (1st edition) 19
144CLK (fixed) 640CLK (fixed) 16CLK (fixed)
(Note: X=0 to 639)
1
CLK
Hsync
Hsync
Hsync
Hsync
Vsync
2 3
DATA
(R0-R5)
(G0-G5)
(B0-B5)
(Note: Y
=
0 to 479)
2
1 1
D(X,0) D(X,478)D(X,479)
D(X,Y) INVALID
INVALID
1
D(0,Y)D(1,Y) D(X,Y) D(638,Y)D(639,Y)
INVALID INVALID
D(0,Y)D(1,Y) D(639,Y)
INVALID INVALID
1CLK
thp thb thd thf
480H (fixed)
1H
33H (fixed)
tvp tvb tvd tvf
12H (fixed)
DATA
(R0-R5)
(G0-G5)
(B0-B5)
DATA
(R0-R5)
(G0-G5)
(B0-B5)
NL6448BC33-70D
(b) DE mode
Horizontal timing
Vertical timing
INVALID
1 2 639 640
CLK
DE
DATA
(R0-R5)
(G0-G5)
(
B0-B5
)
INVALID
thd
th
DE
DATA
(R0-R5)
(G0-G5)
(B0-B5)
INVALID INVALID
1 2 479 480
tvd
tv
tc
DATA SHEET DOD-PP-0955 (1st edition) 20
NL6448BC33-70D
(c) Common item of Fixed mode and DE mode
tdrf
0.7VCC
0.3VCC
thh
Hsync
ths
CLK
Hsync
Vsync
tvhh
tvhs
tch
INVALID
CLK
DATA
(R0-R5)
(G0-G5)
(B0-B5)
tds tdh
INVALID
tdes tdeh
DE
tc
0.7VCC
0.3VCC
0.7VCC
0.3VCC
0.7VCC
0.3VCC
0.7VCC
0.3VCC
0.7VCC
0.3VCC
0.7VCC
0.3VCC
tdrf
tderf tderf
thrf thrf
tvrf tvrf
tcrf tcrf
DATA SHEET DOD-PP-0955 (1st edition) 21
NL6448BC33-70D
4.10 OPTICS
4.10.1 Optical characteristics (Note1, Note2)
Parameter Condition Symbol min. typ. max. Unit
Measuring
instrument Remarks
Luminance White at center
θR= 0°, θL= 0°, θU= 0°, θD= 0°L 280 450 - cd/m2BM-5A -
Contrast ratio Wh ite/Black at center
θR= 0°, θL= 0°, θU= 0°, θD= 0°CR 500 900 - - BM-5A Note3
Luminance uniformity White
θR= 0°, θL= 0°, θU= 0°, θD= 0°LU - 1.25 1.4 - BM-5A Note4
x coordinate Wx 0.263 0.313 0.363 -
White y coordinate Wy 0.279 0.329 0.379 -
x coordinate Rx - 0.559 - -
Red y coordinate Ry - 0.342 - -
x coordinate Gx - 0.355 - -
Green y coordinate Gy - 0.548 - -
x coordinate Bx - 0.156 - -
Chromaticity
Blue y coordinate By - 0.125 - -
Color gamut θR= 0°, θL= 0°, θU= 0°, θD= 0°
at center, against NTSC color space C 35 40 - %
SR-3 Note5
White to Black Ton - 3 6 ms
Response time Black to White Toff - 15 21 ms BM-5A Note6
Note7
Right θU= 0°, θD= 0°, CR≥ 10 θR 70 80 - °
Left θU= 0°, θD= 0°, CR≥ 10 θL 70 80 - °
Up θR= 0°, θL= 0°, CR≥ 10 θU 70 80 - °
Viewing angle
Down θR= 0°, θL= 0°, CR≥ 10 θD 70 80 - °
EZ
Contrast Note8
Note1: These are initial characteristics.
Note2: Measurement conditions are as follows.
Ta=25°C, VCC=3.3V, IL= 50mA/One circuit, Display mode: VGA, Horizontal cycle =
1/31.468kHz, Vertical cycle = 1/59.94H z, DPS= Low or Open: Normal scan
Optical characteristics are measured at luminance saturation 20minutes after the product
works, in the dark room. Also measurement methods are as follows.
DATA SHEET DOD-PP-0955 (1st edition) 22
Note3: See "4.10.2 Definition of contrast ratio".
Note4: See "4.10.3 Definition of luminance uniformity".
Note5: These coordinates are found on CIE 1931 chromaticity diagram.
Note6: Product surface temperature: TopF = 32°C
LCD module
(Product)
50cm
1°
Photodetector (BM-5A or SR-3)
Photodetector (EZ Contrast)
LCD module
(Product)
Note7: See "4.10.4 Definition of response times".
Note8: See "4.10.5 Definition of viewing angles".
NL6448BC33-70D
4.10.2 Definition of contrast ratio
The contrast ratio is calculated by using the following formula.
Luminance of white screen
Luminance of black screen
Contrast ratio (CR) =
4.10.3 Definition of luminance uniformity
The luminance uniformity is calculated by using following formula.
Maximum l umi nance from ① to ⑤
Minimum l uminance from ① to ⑤
Luminance uniformity (LU) =
The luminance is measured at near the 5 points show n b elow .
DATA SHEET DOD-PP-0955 (1st edition) 23
4.10.4 Definition of response times
Response time is measured at the time when the luminance changes from "white" to "black", or
"black" to "white" on the same screen point, by photo-detector. Ton is the time when the
luminance changes from 90% down to 10%. Also Toff is the time when the luminance changes
from 10% up to 90% (See the following diagram.).
4.10.5 Definition of viewing angles
③
④ ⑤
① ②
106 320 533
80
240
400
100%
90%
10%
0%
Ton Toff
Luminance
White
Black
Left Upper
Lower
N
ormal axis (Per pendicular )
θU
θD
θR
θL 12 o’clock
Right
NL6448BC33-70D
DATA SHEET DOD-PP-0955 (1st edition) 24
5. ESTIMATED LUMINANCE LIFETIME
The luminance lifetime is the time from initial luminance to half-luminance.
This lifetime is the estimated value, and is not guarantee value.
Condition Estimated luminance lifetime
(Life time expecta ncy)
Note1, Note2, Note3 Unit
25°C (Ambient temperature of the product)
Continuous operation, IL= 50mA/one circuit 70,000 h
LED
elementary substance 80°C (Surface temperature at screen)
Continuous operation, IL= 50mA/one circuit 60,000 h
Note1: Life time expectancy is mean time to half-luminance.
Note2: Estimated luminance lifetime is not the value for an LCD module but the value for LED
elementary substance.
Note3: By ambient temperature, the lifetime changes particularly. Especially, in case the product
works under high temperature environment, the lifetime becomes short.
NL6448BC33-70D
6. RELIABILITY TESTS
Test item Condition Judgment Note1
High temperature and humidity
(Operation) ① 60 ± 2°C, RH= 90%, 240hours
② Display data is black.
High temperature
(Operation) ① 80 ± 3°C, 240hours
② Display data is black.
Heat cycle
(Operation)
① -30 ± 3°C…1hour
80 ± 3°C…1hour
② 50cycles, 4hours/cycle
③ Display data is black.
Thermal shock
(Non operation)
① -30 ± 3°C…30minutes
80 ± 3°C…30minutes
② 100cycles, 1hour/cycle
③ Temperature transition time is within 5
minutes.
ESD
(Operation)
① 150pF, 150Ω, ±10kV
② 9 places on a panel surface Note2
③ 10 times each places at 1 sec interval
Dust
(Operation)
① Sample dust: No. 15 (by JIS-Z8901)
② 15 seconds stir
③ 8 times repeat at 1 hour interval
No display malfunctions
Vibration
(Non operation)
① 5 to 100Hz, 19.6m/s2
② 1 minute/cycle
③ X, Y, Z directions
④ 120 times each directions
Mechanical shock
(Non operation)
① 539m/ s2, 11ms
② ±X, ±Y, ±Z directions
③ 5 times each directions
No display malfunctions
No physical damages
Note1: Display and appearance are checked under environmental conditions equivalent to the
inspection conditions of defect criteria.
Note2: See the following figure for discharge points.
{ {
{
{ {
{
{ {
{
DATA SHEET DOD-PP-0955 (1st edition) 25
NL6448BC33-70D
DATA SHEET DOD-PP-0955 (1st edition) 26
7. PRECAUTIONS
7.1 MEANING OF CAUTION SIGNS
The following caution signs have very important meaning. Be sure to read "7.2 CAUTIONS" a nd
"7.3 ATTENTIONS"!
!
This sign has the meaning that a customer will be injured or the product will sustain
damage if the customer practices wrong operations.
This sign has the meaning that a customer will be injured if the customer practices
wrong operations.
7.2 CAUTIONS
∗ Do not shock and press the LCD panel and the backlight! There is a danger of breaking,
because they are made of glass. (Shock: Equal to or no greater than 539m/s2 and equal to
or no greater than 11ms, Pressure: Equal to or no greater than 19.6 N (φ16mm jig))
7.3 ATTENTIONS
7.3.1 Handling of the product
① Take hold of both ends without touching the circuit board when the product (LCD module) is
picked up from inner packing box to avoid broken down or misadjustment, because of stress to
mounting parts on the circuit board.
② When the product is put on the table temporarily, display surface must be placed downward.
③ When handling the product, take the measures of electrostatic discharge with such as earth band,
ionic shower and so on, because the product may be damaged by electrostatic.
④ The torque for product mounting screws must never exceed 0.294N⋅m. Higher torque might result
in distortion of the bezel.
⑤ The product must be installed using mounting holes without undue stress such as bends or twist
(See outline drawings). And do not add undue stress to any portion (such as bezel flat area). Bends
or twist described above and undue stress to any portion may cause display mura.
⑥ Do not press or rub on the sensitive product surface. When cleaning the product surface, wipe it
with a soft dry cloth.
⑦ Do not push or pull the interface connectors while the product is working.
⑧ When handling the product, use of an original protection sheet on the product surface (polarizer) is
recommended for protection of product surface. Adhesive type protection sheet may change color
or characteristics of the polarizer.
⑨ Usually liquid crystals don't leak through the breakage of glasses because of the surface tension of
thin layer and the construction of LCD panel. But, if you contact with liquid crystal by any chance,
please wash it away with soap and water.
!
NL6448BC33-70D
DATA SHEET DOD-PP-0955 (1st edition) 27
7.3.2 Environment
① Do not operate or store in high temperature, high humidity, dewdrop atmosphere or corrosive
gases. Keep the product in packing box with antistatic pouch in room temperature to avoid dusts
and sunlight, when storing the product.
② In order to prevent dew condensation occurred by temperature difference, the product packing box
must be opened after enough time being left under the environment of an unpacking room.
Evaluate the storage time sufficiently because dew condensation is affected by the environmental
temperature and humidity. (Recommended leaving time: 6 hours or more with the original packing
state after a customer receives the package)
③ Do not operate in high magnetic field. If not, circuit boards may be broken.
④ This product is not designed as radiation hardened.
7.3.3 Characteristics
The following items are neither defects nor failures.
① Characteristics of the LCD (such as response time, luminance, color uniformity and so on) may be
changed depending on ambient temperature. If the product is stored under condition of low
temperature for a long time, it may cause display mura. In this case, the product should be
operated after enough time being left under condition of operating temperature.
② Display mura, flickering, vertical streams or tiny spots may be observed depending on display
patterns.
③ Do not display the fixed pattern for a long time because it may cause image sticking. Use a screen
saver, if the fixed pattern is displayed on the screen.
④ The display color may be changed depending on viewing angle because of the use of condenser
sheet in the backlight.
⑤ Optical characteristics may be changed depending on input signal timings.
7.3.4 Others
① All GND and VCC terminals should be used without any non-connected lines.
② Do not disassemble a product or adjust variable resistors.
③ See "REPLACEMENT MANUAL FOR LAMP HOLDER SET", when replacing lamp holder set .
④ Pack the product with the original shipping package, in order to avoid any damages during
transportation, when returning the product to NEC for repairing and so on.
⑤ The information of China RoHS directive six hazardous substances or elements in this product is
as follows.
China RoHS directive six hazardous substances or elements
Lead
(Pb) Mercury
(Hg) Cadmium
(Cd)
Hexavalent
Chromium
(Cr VI)
Polybrominated
Biphenys
(PBB)
Polybrominated
Biphenyl Ethers
(PBDE)
✕
Note1: : This indicates that the poisonous or harmful material in all the homogeneous materials
for this part is equal or below the limitation level of SJ/T11363-2006 standard
regulation.
✕: This indicates that the poisonous or harmful material in all the homogeneous materials
for this part is above the limitation level of SJ/T11363-2006 standard regulation.
NL6448BC33-70D
8. OUTLINE DRAWINGS
8.1 FRONT VIEW
Note1: The values in parentheses are for reference.
Note2: The torque for product mounting screws must never exceed 0.294N⋅m.
Note3: Mounting hole portions (4 pieces)
Unit: mm
DATA SHEET DOD-PP-0955 (1st edition) 28
NL6448BC33-70D
DATA SHEET DOD-PP-0955 (1st edition) 29
8.2 REAR VIEW
Unit: mm
Note1: The values in parentheses are for reference.
Note2: The torque for product mounting screws must never exceed 0.294N⋅m.
Note3: Mounting hole portions (4 pieces)
