Page 1
TFT COLOR LCD MODULE
NL6448BC33-53
26cm (10.4 Type)
VGA
DATA SHEET
DOD-PP-0150 (7th edition)
This DATA SHEET is updated document from
DOD-MD-0045 (6).
All information is subject to change without notice.
Please confirm the sales representative before
starting to design your system.
Document Number: DOD-PP-0150 (7th edition)
Published date: January 2007 CP(N)
1
© NEC LCD Technologies, Ltd.
2003-2007 All rights reserved.
Page 2
NL6448BC33-53
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 product is the "Standard" unless otherwise specified in this document.
DATA SHEET DOD-PP-0150 (7th edition)
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NL6448BC33-53
CONTENTS
INTRODUCTION ..........................................................................................................................................
1. OUTLINE....................................................................................................................................................
1.1 STRUCTURE AND PRINCIPLE...........................................................................................................
1.2 APPLICA TION.......................................................................................................................................
1.3 FEATURES.............................................................................................................................................
2. GENERAL SPECIFICATIONS ................................................................................................................5
3. BLOCK DIAGRAM...................................................................................................................................
4. DETAILED SPECIFICATIONS...............................................................................................................
4.1 MECHANICAL SPECIFICATIONS......................................................................................................
4.2 ABSOLUTE MAXIMUM RATINGS....................................................................................................
4.3 ELECTRICAL CHARACTERISTICS...................................................................................................
4.3.1 LCD panel signal processing board...............................................................................................
4.3.2 Backlight lamp...............................................................................................................................
4.3.3 Power supply voltage ripple.........................................................................................................
4.3.4 Fuse..............................................................................................................................................
4.4 POWER SUPPLY VOLTAGE SEQUENCE ........................................................................................
4.4.1 LCD panel signal processing board.............................................................................................
4.4.2 Inverter.........................................................................................................................................
4.5 CONNECTIONS AND FUNCTIONS FOR INTERFACE PINS.........................................................
4.5.1 LCD panel signal processing board.............................................................................................
4.5.2 Backlight lamp.............................................................................................................................
4.5.3 Positions of plugs and a socket....................................................................................................
4.6 DISPLAY COLORS AND INPUT DATA SIGNALS ..........................................................................
4.7 DISPLAY POSITIONS.........................................................................................................................
4.8 SCANNING DIRECTIONS.................................................................................................................
4.9 INPUT SIGNAL TIMINGS..................................................................................................................
4.9.1 Outline of input signal timings ....................................................................................................
4.9.2 Timing characteristics..................................................................................................................
4.9.3 Input signal timing chart..............................................................................................................
4.10 OPTICS...............................................................................................................................................
4.10.1 Optical characteristics................................................................................................................
4.10.2 Definition of contrast ratio.........................................................................................................
4.10.3 Definition of luminance uniformity...........................................................................................
4.10.4 Definition of response times......................................................................................................
4.10.5 Definition of viewing angles......................................................................................................
5. RELIABILITY TESTS.............................................................................................................................
6. PRECAUTIONS .......................................................................................................................................
6.1 MEANING OF CAUTION SIGNS......................................................................................................
6.2 CAUTIONS..........................................................................................................................................
6.3 A TTENTI ONS......................................................................................................................................
6.3.1 Handling of the product...............................................................................................................
6.3.2 Environment.................................................................................................................................
6.3.3 Characteristics..............................................................................................................................
6.3.4 Other............................................................................................................................................
7. OUTLINE DRAWINGS...........................................................................................................................
7.1 FRONT VIEW......................................................................................................................................
7.2 REAR VIEW ........................................................................................................................................
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DATA SHEET DOD-PP-0150 (7th edition)
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1. OUTLINE
1.1 STRUCTURE AND PRINCIPLE
Color LCD module NL6448BC33-53 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
• Ultra-wide viewing angle
• High luminance
• High contrast
• 6-bit digital RGB signals
• DE (Data enable) function
• Reversible-scan direction
• Edge light type (without inverter)
• Replaceable lamp for backlight
• Acquisition product for UL60950-1/CSA C22.2 No.60950-1-03 (File number: E170632)
• Compliance with the European RoHS directive (2002/95/EC)
(From product which was produced after April. 1, 2006)
NL6448BC33-53
DATA SHEET DOD-PP-0150 (7th edition)
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2. GENERAL SPECIFICATIONS
Display area
NL6448BC33-53
211.2 (H) × 158.4 (V) mm
Diagonal size of display
Drive system
Display color
Pixel
Pixel arrangement
Dot pitch
Pixel pitch
Module size
Weight
Contrast ratio
Viewing angle
Designed viewing direction
Polarizer surface
Polarizer pencil-hardness
26cm (10.4 inches)
a-Si TFT active matrix
262,144 colors
640 (H) × 480 (V) pixels
RGB (Red dot, Green dot, Blue dot) vertical stripe
0.11 (H) × 0.33 (V) mm
0.33 (H) × 0.33 (V) mm
243.0 (W) × 185.1 (H) × 10.5 (D) mm (typ.)
475g (typ.)
500:1 (typ.)
≥
At the contrast ratio
10:1
• Horizontal: Right side 85° (typ.), Left side 85° (typ.)
• Vertical: Up side 85° (typ.), Down side 85° (typ.)
At DPS= Low or Open: Normal scan
• Viewing angle with optimum grayscale (γ=2.2): normal axis
Clear
3H (min.) [by JIS K5400]
Color gamut
Response time
Luminance
Signal system
Power supply voltage
Backlight
Power consumption
At LCD panel center
40% (typ.) [against NTSC color space]
←→
Ton+Toff (10%
90%)
34ms (typ.)
At IBL= 5.0mArms / lamp
380cd/m
2
(typ.)
6-bit digital signals for data of RGB colors,
Dot clock (CLK), Data enable (DE),
Horizontal synchronous signal (Hsync),
Vertical synchronous signal (Vsync)
LCD panel signal processing board: 3.3V or 5.0V
Edge light type: 2 cold cathode fluorescent lamps
Replaceable part
• Lamp holder set: Type No. 104LHS39
Recommended inverter (Option)
• Inverter: Type No.: 104PW161, 104PW191
At IBL= 5.0mArms / lamp, Checkered flag pattern
5.9W (typ., Power dissipation of the inverter is not included.)
DATA SHEET DOD-PP-0150 (7th edition)
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NL6448BC33-53
3. BLOCK DIAGRAM
Host
R0 to R5
G0 to G5
B0 to B5
CLK
Hsync
Vsync
DE
DPS
GND
Note1
Note2
VCC
FG
Note1
Note2
VDDB
GNDB
Note2
Note1: Relations between GND (Signal ground), FG (Frame ground) and VBLC (Lamp low voltage
Note2: GND, FG and GNDB must be connected to customer equipment’s ground, and it is recommended
LCD module (Product)
100Ω
100Ω
100Ω
100Ω
100Ω
Controller
100Ω
100Ω
480 lines
47kΩ
V-driver
Note3
Power supply
for gradation
DC/DC
Fuse
converter
LCD panel signal processing board
Backlight (Edge light type)
VBLH
Inverter
(Option)
VBLH
VBLC
Note1
Metallic frame of lamp holder
terminal) in the LCD module are as follows.
GND - FG Not connected
GND - VBLC Not connected
FG - VBLC Not connected
that these grounds are connected together in customer equipment.
H-driver
1,920 lines
LCD panel
H: 640 × 3 (R, G, B)
V: 480
Lamp
Lamp
DATA SHEET DOD-PP-0150 (7th edition)
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Note3: Pull-down resistance of DPS pin
VCC
at 3.3V 6.4 11.4 18.3
at 5.0V 4.5 8.2 14.0
4. DETAILED SPECIFICATIONS
4.1 MECHANICAL SPECIFICATIONS
Parameter Specification Unit
NL6448BC33-53
Pull-down resistance of DPS pin (kΩ) Power supply voltage
min. typ. max.
Module size
Display area
Weight 475 (typ.), 500 (max.) g
Note1: See "7. OUTLINE DRAWINGS".
4.2 ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Rating Unit Remarks
Power supply
voltage
Input voltage for
signals
Operating temperature
LCD panel signal processing board VCC -0.3 to +6.5 V
Lamp voltage VBLH 1,500 Vrms
Display signals
Note1
Function signal
Note2
Storage temperature Tst -20 to +80
243.0 ± 0.5 (W) × 185.1 ± 0.5 (H) × 10.5 ± 0.5 (D)
211.2 (H) × 158.4 (V)
VD -0.3 to VCC+0.3 V
VF -0.3 to VCC+0.3 V
Front surface TopF -10 to +70
Rear surface TopR -10 to +70
Note1 mm
Note1 mm
Ta = 25°C
°C
°C
°C
-
Note3
Note4
Relative humidity
Note5
Absolute humidity
Note5
RH
AH
≤ 95
≤ 85
≤ 70
Note6
Note1: CLK, Hsync, Vsync, DE, DATA (R0 to R5, G0 to G5, B0 to B5)
Note2: DPS
Note3: Measured at center of LCD panel surface (including self-heat)
Note4: Measured at center of LCD module's rear shield surface (including self-heat)
Note5: No condensation
Note6: Water amount at Ta = 50°C and RH = 85%
DATA SHEET DOD-PP-0150 (7th edition)
%
%
g/m
40 < Ta ≤ 50°C
3
Ta ≤ 40°C
Ta > 50°C
7
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4.3 ELECTRICAL CHARACTERISTICS
4.3.1 LCD panel signal processing board
Parameter Symbol min. typ. max. Unit Remarks
NL6448BC33-53
(Ta = 25°C)
Power supply voltage VCC
Power supply current ICC
Logic input voltage for
display signals
Input voltage for DPS
signal
High VDH 0.7VCC - VCC V
Low VDL 0 - 0.3VCC V
High VFH 0.7VCC - VCC V
Low VFL 0 - 0.4 V
3.0 3.3 3.6 V at VCC = 3.3V
4.75 5.0 5.25 V at VCC = 5.0V
-
-
Note1: Checkered flag pattern [by EIAJ ED-2522]
Note2: Pattern for maximum current
210
Note1
140
Note1
400
Note2
280
Note2
mA at VCC = 3.3V
mA at VCC = 5.0V
CMOS level
-
DATA SHEET DOD-PP-0150 (7th edition)
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⏐
⏐
×
⏐
×
4.3.2 Backlight lamp
Lamp current IBL 2.0 5.0 5.5 mArms
Lamp voltage VBLH - 520 - Vrms Note2, Note3
Lamp starting voltage VS
Lamp oscillation frequency FO 50 - 70 kHz Note6
Note1: This product consists of 2 backlight lamps, and these specifications are for each lamp.
Note2: The lamp voltage cycle between lamps should be kept on a same phase. "VS" and "VBLH" are
Note3: The asymmetric ratio of working waveform for lamps (Power supply voltage peak ratio, power
Note4: This product consists of 2 lamps. 2 lamps contain in the 1 lamp holder, and both lamps are
Note5: The inverter should be designed so that the lamp starting voltage can be maintained for more
Note6: In case "FO" is not the recommended value, beat noise may display on the screen, because of
Note7: Method of lamp cable installation may invite fluctuation of lamp current and voltage or
NL6448BC33-53
(Ta=25°C, Note1)
Parameter Symbol min. typ. max. Unit Remarks
at IBL=5.0mArms:
380cd/m
Note3, Note4
Ta = 25°C
850 - - Vrms
1,100 - - Vrms
Note2, Note3,
Note5, Note8
Ta = -10°C
Note2, Note3,
Note5, Note8
the voltage value between low voltage side (Cold) and high voltage side (Hot).
supply current peak ratio and waveform space ratio) should be less than 5 % (See the following
figure.). If the waveform is asymmetric, DC (Direct current) element apply into the lamp. In this
case, a lamp lifetime may be shortened, because a distribution of a lamp enclosure substance
inclines toward one side between low voltage terminal (Cold terminal) and high voltage terminal
(Hot terminal). When designing the inverter, evaluate asymmetric of lamp working waveform
sufficiently.
Pa
Pb
Sa
0
Sb
Pa - Pb
Pb
Sa - Sb⏐
Sb
100 ≤ 5 %
100 ≤ 5 %
Pa: Supply voltage/current peak for positive, Pb: Supply voltage/current peak for negative
Sa: Waveform space for positive part, Sb: Waveform space for negative part
connected to 1 low voltage cable. Lamp current must be 5.0mArms typical for each lamp, and
sum of 2 lamps must be 10mArms typical. The lamp current should be measured by
high-frequency current meter at the low voltage terminal.
than 1 second. Otherwise the lamp may not be turned on.
interference between "FO" and "1/th". Recommended value of "FO" is as following.
FO
=
1
4
×
1
th
×
(2n-1)
th: Horizontal cycle (See "4.9.2 Timing characteristics".)
n: Natural number (1, 2, 3 ⋅⋅⋅⋅⋅⋅⋅⋅)
asymmetric of lamp working waveform. When designing method of lamp cable installation,
evaluate the fluctuation of lamp current, voltage and working waveform sufficiently.
2
DATA SHEET DOD-PP-0150 (7th edition)
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NL6448BC33-53
Note8: In case of Inverter with Ballast condenser, "VS" is the voltage lebel between Bsllast condenser
and Connector (Refe to the below “Example of measurement”). "VS" should be designed to be
more th an mi ni mum "VS ". O the rwi se t he l amp may n ot b e tu rne d on bec aus e th e la mp st ar ting
voltage is less than minimum "VS".
Example of measurement
Probe capacity: 3pF (Tektronix, inc.: P6015A)
Transformer
Ballast condenser
Inverter
Connector
(Lamp side)
Probe capacity
High voltage probe
VS
DATA SHEET DOD-PP-0150 (7th edition)
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4.3.3 Power supply voltage ripple
This product works, even if the ripple voltage levels are beyond the permissible values as following
the table, but there might be noise on the display image.
Power supply voltage
NL6448BC33-53
Ripple voltage Note1
(Measure at input terminal of power supply)
Unit
3.3 V
VCC
5.0 V
≤ 100
≤ 100
Note1: The permissible ripple voltage includes spike noise.
4.3.4 Fuse
Parameter
Type Supplier
VCC FCC16162AB
Fuse
KAMAYA ELECTRIC
Co., Ltd.
Rating Fusing current Remarks
1.6A
32V
3.2A Note1
Note1: The power supply capacity should 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.
mVp-p
mVp-p
DATA SHEET DOD-PP-0150 (7th edition)
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4.4 POWER SUPPLY VOLTAGE SEQUENCE
4.4.1 LCD panel signal processing board
VCC
Note1
3.0V or 4.75V
0V
Display and
function signals
Note2
0ms < t < 35ms
Note1: In terms of voltage variation (voltage drop) while VCC rising edge is below 3.0V in "VCC =
3.3V" or 4.75V in "VCC = 5.0V", a protection circuit may work, and then this product may not
work.
Note2: Display signals (CLK, Hsync, Vsync, DE, DATA (R0 to R5, G0 to G5, B0 to B5)) and function
signal (DPS) must be Low or High-impedance, exclude the VALID period (See above sequence
diagram), in order to avoid that internal circuits is damaged.
If some of display and function signals of this product are cut while this product is working,
even if the signal input to it onc e again, it might not work normally. VCC should be cut when
the display and function signals are stopped.
4.4.2 Inverter (Option)
Display and
function signals
Note1
VDDB
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.
ON
Tr < 30ms
VALID period
Note2
VALID period
NL6448BC33-53
OFF
0ms < t < 35ms
ON
Toff > 50ms
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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
28 VCC Power supply
29 VCC Power supply
30 N.C. - Keep this pin Open.
31 DPS Selection of scan direction
Note1: All VCC and GND terminals should be used without any non-connected lines.
Note2: See "4.8 SCANNING DIRECTIONS".
NL6448BC33-53
-
-
-
-
Data enable signal: DE mode
High or Open: Fixed mode
Note1
High: Reverse scan
Low or Open: Normal scan Note2
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4.5.2 Backlight lamp
Attention: VBLH and VBLC must be connected correctly. Wrong connections will cause electric
shock and also break down of the product.
CN2 plug: BHR-03VS-1 (J.S.T Mfg. Co., Ltd.)
Adaptable socket: SM03 (4.0) B-BHS-1-TB (LF) (SN), SM03 (4.0) B-BHS-1-TB (J.S.T Mfg. Co., Ltd.)
Pin No. Symbol Signal Remarks
1 VBLC Low voltage (Cold) Cable color: Gray
2 VBLH High voltage (Hot) Cable color: White
3 VBLH High voltage (Hot) Cable color: White
4.5.3 Positions of plugs and a socket
CN2
1
3
High voltage (Hot)
Low voltage (Cold)
High voltage
caution marking
Rear side
Disposal method
marking for lamp
Barcode label
NL6448BC33-53
1
3
31
CN1
Name plate
2
30
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NL6448BC33-53
4.6 DISPLAY COLORS AND INPUT DATA SIGNALS
This product can display in equivalent to 262,144 colors in 64 gray scales. Also the relation between
display colors and input data signals is as the following table.
Display colors
Basic colors
Red gray scale
Green gray scale
Blue gray scale
Black
Blue
Red
Magenta
Green
Cyan
Yellow
White
Black
dark
↑
↓
bright
Red
Black
dark
↑
↓
bright
Green
Black
dark
↑
↓
bright
Blue
R5 R4 R3 R2 R1 R0G5 G4 G3 G2 G1 G0B5 B4 B3 B2 B1 B0
000000
000000
111111
111111
000000
000000
111111
111111
000000
000001
000010
:
:
111101
111110
111111
000000
000000
000000
:
:
000000
000000
000000
000000
000000
000000
:
:
000000
000000
000000
Data signal (0: Low level, 1: High level)
000000
000000
000000
000000
111111
111111
111111
111111
000000
000000
000000
:
:
000000
000000
000000
000000
000001
000010
:
:
111101
111110
111111
000000
000000
000000
:
:
000000
000000
000000
000000
111111
000000
111111
000000
111111
000000
111111
000000
000000
000000
000000
000000
000000
000000
000000
000000
000000
000000
000000
000000
000001
000010
111101
111110
111111
:
:
:
:
:
:
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4.7 DISPLAY POSITIONS
The following table is the coordinates per pixel (See "4.8 SCANNING DIRECTIONS".).
C (0, 0)
R G B
C( 0, 0) C( 1, 0)
C( 0, 1) C( 1, 1)
•
•
•
C( 0, Y) C( 1, Y)
•
•
•
C( 0, 478) C( 1, 478)
C( 0, 479) C( 1, 479)
4.8 SCANNING DIRECTIONS
The following figures are seen from a front view. Also the arrow shows the direction of scan.
Note1: Meaning 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
C( X, 0)
C( X, 1)
•
•
•
C( X, Y)
•
•
•
C( X, 478)
C( X, 479)
C (639, 0)
D (639, 0)
C (639, 479)
D (639, 479)
•
•
•
•
•
•
• • •
• • •
•
• • •
•
• • •
•
• • •
•
• • •
• • •
C (0, 0)
D (0, 0)
C (0, 479)
D (0, 479)
Figure 1. Normal scan (DPS: Low or Open)
C (0, 0)
D (639, 479)
C (0, 479)
D (639, 0)
C (639, 0)
D (0, 479)
C (639, 479)
D (0, 0)
Figure 2. Reverse scan (DPS: High)
• • •
• • •
•
• • •
•
• • •
•
• • •
•
• • •
• • •
Note1
Note1
NL6448BC33-53
C(638, 0) C(639, 0)
C(638, 1) C(639, 1)
•
•
•
C(638, Y) C(639, Y)
•
•
•
C(638, 478) C(639, 478)
C(638, 479) C(639, 479)
•
• • •
•
•
•
•
DATA SHEET DOD-PP-0150 (7th edition)
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t
t
4.9 INPUT SIGNAL TIMINGS
4.9.1 Outline of input signal timings
• Horizontal signal
Note1
Hsync
Note2
Display period
DE (Data enable)
• Vertical signal
Note1
Vsync
Note2
Display period
DE (Data enable)
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 numeration of pulse.
Horizontal synchronizing cycle (th)
Horizontal synchronizing pulse width (thp)
Horizontal back-porch (thb)
Horizontal display period (thd)
Vertical synchronizing cycle (tv)
Vertical synchronizing pulse width (tvp)
Vertical back-porch (tvb)
Vertical display period (tvd)
1
2
34
Horizontal fron
Vertical fron
NL6448BC33-53
-porch (thf)
-porch (tvf)
480
Note3
DATA SHEET DOD-PP-0150 (7th edition)
17
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NL6448BC33-53
4.9.2 Timing characteristics
(a) Fixed mode
Parameter Symbol min. typ. max. Unit Remarks
Frequency 1/tc 21.0 25.175 29.0 MHz 39.72 ns (typ.)
CLK
DATA
(R0-R5)
(G0-G5)
(B0-B5)
Hsync
Vsync
CLK-DATA
Total of pulse width and back-porch thp + thb 144 CLK Note2
CLK- Hsync
Total of pulse width and back-porch tvp + tvb 33 H Note2
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.
Duty tcd 0.4 0.5 0.6 -
Rise time, Fall time tcrf - - 10 ns
Setup time tds 8 - - ns
Hold time tdh 12 - - ns
Rise time, Fall time tdrf - - 10 ns
Cycle th
Display period thd 640 CLK
Front-porch thf 16 CLK
Pulse width thp 10 96 - CLK
Back-porch thb - 48 134 CLK
Setup time ths 8 - - ns
Hold time thh 12 - - ns
Rise time, Fall time thrf - - 10 ns
Cycle tv
Display period tvd 480 H
Front-porch tvf 12 H
Pulse width tvp 1 2 - H
Back-porch tvb - 31 32 H
Hsync-Vsync timing thv 1 - - CLK
Vsync-Hsync timing tvh 30 - - ns
Rise time, Fall time tvrf - - 10 ns
30.0 31.778 33.6
800 CLK
16.1 16.683 17.2 ms 59.94 Hz (typ.)
525 H
μs
31.468 kHz (typ.)
(Note1)
-
-
-
-
-
-
DATA SHEET DOD-PP-0150 (7th edition)
18
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(b) DE mode
Parameter Symbol min. typ. max. Unit Remarks
Frequency 1/tc 21.0 25.175 29.0 MHz 39.72 ns (typ.)
CLK
DATA
(R0-R5)
(G0-G5)
(B0-B5)
Vsync
DE
CLK-DATA
Vsync-DE
timing
Horizontal
Vertical
(One frame)
CLK-DE
Duty tcd 0.4 0.5 0.6 -
Rise time, Fall time tcrf - - 10 ns
Setup time tds 8 - - ns
Hold time tdh 12 - - ns
Rise time, Fall time tdrf - - 10 ns
Pulse width tvp 1 2 - H
Setup time tvds 1 - - CLK
Hold time tvdh 1 - - CLK
Rise time, Fall time tvrf - - 10 ns
Cycle th
Display period thd 640 CLK
Cycle tv
Display period tvd 480 H
Setup time tdes 8 - - ns
Hold time tdeh 12 - - ns
Rise time, Fall time tderf - - 10 ns
30.0 31.778 33.6
- 800 - CLK
16.1 16.683 17.2 ms 59.94 Hz (ty p.)
- 525 - H
Note1: Definition of parameters is as follows.
tc = 1CLK, tcd = tch/tc, th = 1H
Note2: Hsync signal (Pin No.3 of CN1) is not used inside the product at DE mode.
Do not keep pin open to avoid noise problem .
NL6448BC33-53
(Note1, Note2)
-
-
-
31.468 kHz (typ.)
μs
-
-
-
DATA SHEET DOD-PP-0150 (7th edition)
19
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4.9.3 Input signal timing chart
(a) Fixed mode
Vsync
Hsync
Hsync
DATA
(R0-R5)
(G0-G5)
(B0-B5)
Hsync
DATA
(R0-R5)
(G0-G5)
(B0-B5)
Hsync
CLK
DATA
(R0-R5)
(G0-G5)
(B0-B5)
tvp tvb tvd tvf
INVALID
INVALID
33H (fixed)
2
1
3
D(X,0)
thp thb thd thf
144CLK (fixed) 640CLK (fixed) 16CLK (fixed)
1
2
INVALID
1H
480H (fixed)
D(X,Y)
D(0,Y)D(1,Y) D(X,Y) D(638,Y)D(639,Y)
1CLK
D(0,Y)D(1,Y) D(639,Y)
12H (fixed)
D(X,478)D(X,479)
NL6448BC33-53
1
INVALID
(Note: X=0 to 639)
INVALID
1
INVALID
(Note: Y=0 to 479)
DATA SHEET DOD-PP-0150 (7th edition)
20
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(b) DE mode
(
Horizontal timing
CLK
DATA
(R0-R5)
(G0-G5)
B0-B5)
DE
Vertical timing
Vsync
DATA
(R0-R5)
(G0-G5)
(B0-B5)
DE
tvds
INVALID
tvp
INVALID
tvdh
tc
1 2 639 640
thd
1 2 479 480
tvd
tv
NL6448BC33-53
INVALID
th
INVALID
DATA SHEET DOD-PP-0150 (7th edition)
21
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(c) Common item of Fixed mode and DE mode
CLK
0.7VCC
0.5VCC
0.3VCC
tcrf
tch
DATA
(R0-R5)
(G0-G5)
(B0-B5)
0.7VCC
0.5VCC
0.3VCC
INVALID
DE
0.7VCC
0.5VCC
0.3VCC
CLK
0.5VCC
Hsync
0.7VCC
0.5VCC
0.3VCC
Hsync
0.5VCC
thv
Vsync
0.7VCC
0.5VCC
0.3VCC
tvrf
tc
tcrf
tdeh
thh
tdrf
tvh
tds
tdes
ths
tderf
thrf
tdh
tdrf
NL6448BC33-53
tdeh
tderf
tdes
DATA SHEET DOD-PP-0150 (7th edition)
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4.10 OPTICS
4.10.1 Optical characteristics
Parameter Condition Symbol min. typ. max. Unit Remarks
Luminance
Contrast ratio
Luminance uniformity
Chromaticity
Color gamut
White
Red
Green
Blue
White at center
θR= 0°, θL= 0°, θU= 0°, θD= 0°
White/Black at center
θR= 0°, θL= 0°, θU= 0°, θD= 0°
White
θR= 0°, θL= 0°, θU= 0°, θD= 0°
x coordinate Wx 0.283 0.313 0.343
y coordinate Wy 0.299 0.329 0.359
x coordinate Rx
y coordinate Ry
x coordinate Gx
y coordinate Gy
x coordinate Bx
y coordinate By
θR= 0°, θL= 0°, θU= 0°, θD= 0°
at center, against NTSC color space
NL6448BC33-53
(Note1, Note2)
2
L 280 380 - cd/m
CR 150 500 - - Note3
LU - 1.25 1.40 - Note4
0.582
-
0.341
-
0.301
-
0.522
-
0.154
-
0.153
-
C 35 40 - %
- -
- -
- -
- -
- -
- -
-
-
-
Note5
Black to White Ton - 18 30 ms
Response time
White to Black Toff - 16 25 ms
Viewing angle
Right
Left
Up
Down
θU= 0°, θD= 0°, CR ≥ 10 θR
θU= 0°, θD= 0°, CR ≥ 10 θL
θR= 0°, θL= 0°, CR ≥ 10 θU
θR= 0°, θL= 0°, CR ≥ 10 θD
70 85 70 85 70 85 70 85 -
Note1: These are initial characteristics.
Note2: Measurement conditions are as follows.
Ta=25°C, VCC=3.3V, IBL= 5.0mArms/lamp, Display mode: VGA, Horizontal cycle=
1/31.468kHz, Vertical cycle= 1/59.94Hz, DPS= Low or Open: Normal scan
Optical characteristics are measured at luminance saturation after 20minutes from working the
product, in the dark room. Also measurement methods are as follows.
50cm
Photodetector (BM-5A)
LCD module
(Product)
1°
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 = 29.5 °C
Note7: See "4.10.4 Definition of response times".
Note8: See "4.10.5 Definition of viewing angles".
Note6
Note7
°
°
Note8
°
°
DATA SHEET DOD-PP-0150 (7th edition)
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N
4.10.2 Definition of contrast ratio
The contrast ratio is calculated by using the following formula.
Contrast ratio (CR) =
4.10.3 Definition of luminance uniformity
The luminance uniformity is calculated by using following formula.
Luminance uniformity (LU) =
The luminance is measured at near the 5 points shown below .
4.10.4 Definition of response times
Response time is measured, the luminance changes from "black" to "white", or "white" to "black" on
the same screen point, by photo-detector. Ton is the time it takes the luminance change from 10% up
to 90%. Also Toff is the time it takes the luminance change from 90% down to 10% (See the
following diagram.).
White
Luminance
Black
4.10.5 Definition of viewing angles
ormal axis (Perpendicular)
Left
θD
Lower
80
240
400
100%
90%
10%
0%
θL
Luminance of white screen
Luminance of black screen
Maximum luminance from ①
Minimum luminance from ①
106
320
①
③
④
Ton
12 o’clock
θU
Upper
θR
Right
NL6448BC33-53
to ⑤
to ⑤
533
②
⑤
Toff
DATA SHEET DOD-PP-0150 (7th edition)
24
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5. RELIABILITY TESTS
Test item Condition Judgement
NL6448BC33-53
High temperature and humidity
(Operation)
High temperature
(Operation)
Heat cycle
(Operation)
Thermal shock
(Non operation)
ESD
(Operation)
Dust
(Operation)
Vibration
(Non operation)
Mechanical shock
(Non operation)
① 60 ± 2°C, RH = 90%, 240hours
② Display data is white.
① 70 ± 2°C, 240hours
② Display data is white.
① -10 ± 3°C…1hour
70 ± 3°C…1hour
② 50cycles, 4hours/cycle
③ Display data is white.
① -20 ± 3°C…30minutes
80 ± 3°C…30minutes
② 100cycles, 1hour/cycle
③ Temperature transition time is within
5 minutes.
① 150pF, 150Ω, ±10kV
② 9 places on a panel surface Note2
③ 10 times each places at 1 sec interval
① Sample dust: No. 15 (by JIS-Z8901)
② 15 seconds stir
③ 8 times repeat at 1 hour interval
① 5 to 100Hz, 19.6m/s
② 1 minute/cycle
③ X, Y, Z direction
④ 120 times each directions
2
① 539m/ s
② ±X, ±Y, ±Z direction
③ 5 times each directions
, 11ms
2
No display malfunctions Note1
No display malfunctions
No physical damages
Note1
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-0150 (7th edition)
25
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!
6. PRECAUTIONS
6.1 MEANING OF CAUTION SIGNS
The following caution signs have very important meaning. Be sure to read "6.2 CAUTIONS" and
"6.3 ATTENTIONS", after understanding these contents!
This sign has the meaning that customer will be injured by himself or the product will
sustain a damage, if customer has wrong operations.
This sign has the meaning that customer will get an electrical shock, if customer has
wrong operations.
This sign has the meaning that customer will be injured by himself, if customer has
wrong operations.
6.2 CAUTIONS
∗ Do not touch the working backlight. There is a danger of an electric shock.
NL6448BC33-53
∗ Do not touch the working backlight. There is a danger of burn injury.
∗ Do not shock and press the LCD panel and the backlight! There is a danger of breaking,
because they are made of glass. (Shock: To be not greater 539m/s
11ms, Pressure: To be not greater 19.6 N (φ16mm jig))
6.3 ATTENTIONS
6.3.1 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 Do not hook nor pull cables such as lamp cable, and so on, in order to avoid any damage.
③ When the product is put on the table temporarily, display surface must be placed downward.
④ 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.
⑤ The torque for product mounting screws must never exceed 0.294N⋅m. Higher torque might result in
distortion of the bezel.
⑥ 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). Ben ds or twist
described above and undue stress to any portion may cause display mura.
⑦ Do not press or rub on the sensitive product surface. When cleaning the product surface, use of the
cloth with ethanolic liquid such as screen cleaner for LCD is recommended.
⑧ Do not push nor pull the interface connectors while the product is working.
⑨ Do not bend or unbend the lamp cable at the near part of the lamp holding rubber, to avoid the
damage for high voltage side of the lamp.
2
and to be not greater
!
DATA SHEET DOD-PP-0150 (7th edition)
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⑩ Properly connect the plug (backlight side) to adaptable socket (inverter side) without incomplete
⑪ If the lamp cable is attached on the metal part of the product directly, high frequency leak current to
⑫ When not connecting FG of the LCD module to the customer's equipment ground, inverter noise
⑬ When handling the product, use of an original protection sheet on the product surface (polarizer) is
⑭ Usually liquid crystals don't leak through the breakage of glasses because of the surface tension of
6.3.2 Environment
① Do not operate or store in high te mperature, high humidity, dewdrop atmosphere or corrosive gases.
② In order to prevent dew condensation occurring by temperature difference, the product packing box
③ Do not operate in high magnetic field. Circuit boards may be broken down by it.
④ This product is not designed as radiation hardened.
6.3.3 Characteristics
The following items are neither defects nor failures.
① Response time, luminance and color may be changed by ambient temperature.
② Display mura, flicker, vertical seam or small spot may be observed depending on display pat tern s .
③ Optical characteristics (e.g. luminance, display uniformity, etc.) gradually is going to change
④ Do not display the fixed pattern for a long time because it may cause image sticking. Use a screen
⑤ The display color may be changed depending on viewing angle because of the use of condenser sheet
⑥ Optical characteristics may be changed depending on input signal timings.
⑦ The interference noise of input signal frequency for this product's signal processing board and
⑧ After the product is stored under condition of low temperature or dark place for a long time, the cold
NL6448BC33-53
connection. After connecting, be careful not to hook the lamp cables because incomplete connection
may occur by hooking the lamp cables. This incomplete connection may cause abnormal operation of
high voltage circuit.
the metal part may occur, then the brightness may decrease or the lamp may not be turned on.
may create video noise on the LCD screen.
recommended for protection of product surface. Adhesive type protection sheet may change color or
characteristics of the polarizer.
thin layer and the construction of LCD panel. But, if you contact with liquid crystal for the worst,
please wash it out with soap.
Keep the product in packing box and antistatic pouch in room temperature to avoid for dusts and
sunlight, when customer stores the product.
should be opened after enough time being left under the environment of an unpack ing room. Evaluate
the leaving time sufficiently because a situation of dew condensation occurring is changed by the
environmental temperature and humidity. (Recommended leaving time: 6 hours or more with packing
state)
depending on operating time, and especially low temperature, because the LCD has cold cathode
fluorescent lamps.
saver, if the fixed pattern is displayed on the screen.
in the backlight.
luminance control frequency of customer's inverter may appear on a display. Set up luminance control
frequency of inverter so that the interference noise does not appear.
cathode fluorescent lamp may not be turned on under the same condition because of the general
characteristic of cold cathode fluorescent lamp. In addition, when Luminance control ratio is low in
pulse width modulation method inverter, the lamp may not be turned on. In this case, power should
be supplied again.
DATA SHEET DOD-PP-0150 (7th edition)
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NL6448BC33-53
6.3.4 Other
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 backlight lamps.
④ Pay attention not to insert foreign materials inside of the product, when using tapping screws.
⑤ Pack the product with original shipping package, in order to avoid any damages during transportation,
when returning the product to NEC for repair and so on.
DATA SHEET DOD-PP-0150 (7th edition)
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7. OUTLINE DRAWINGS
7.1 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)
NL6448BC33-53
Unit: mm
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7.2 REAR VIEW
Note1: The values in parentheses are for reference.
Note2: The torque for product mounting screws must never exceed 0.294N⋅m.
NL6448BC33-53
Unit: mm
DATA SHEET DOD-PP-0150 (7th edition)
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