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TFT COLOR LCD MODULE
NL6448BC33-54
26.4cm (10.4 Type) VGA
DATA SHEET
DOD-PD-0072 (2nd edition)
This DATA SHEET is updated document from DOD-M-1355(1). All information is subject to change without notice. Please confirm the sales representative before starting to design your system.
Document Number: DOD-PD-0072 (2nd edition) Published date: June 2003 CP(N)
1
NEC LCD Technologies, Ltd.
2003 All rights reserved.
NL6448BC33-54
INTRODUCTION
No part of this document shall be copied in any form or by any means without the prior written consent of NEC LCD Technologies, Ltd. (hereinafter called "NEC"). NEC 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 product described herein or any other liability arising from use of such application. No license, express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC or of others. While NEC has been making continuous effort to enhance the reliability of its products, the possibility of failures cannot be eliminated entirely. To minimize risks of damage to property or injury to person arising from a failure in an NEC product, customers must incorporate sufficient safety measures in their design, such as redundancy, fire-containment and anti-failure features. NEC products are classified into the following three quality grades: "Standard", "Special", "Specific" The "Specific" quality grade applies only to applications developed based on a customer designated "quality assurance program" for a specific application. The recommended applications of a product depend on its quality grade, as indicated below. Customers must check the quality grade of each application 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: Military systems, aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems (medical equipment, etc.) and any other equipment The quality grade of this product is "Standard" unless otherwise specified in this document. If customers intend to use this product for applications other than those specified for "Standard" quality grade, they should contact NEC sales representative in advance.
DATA SHEET DOD-PD-0072 (2nd edition)
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CONTENTS
INTRODUCTION ..........................................................................................................................................2 1. OUTLINE....................................................................................................................................................4 1.1 STRUCTURE AND PRINCIPLE...........................................................................................................4 1.2 APPLICATIONS.....................................................................................................................................4 1.3 FEATURES.............................................................................................................................................4 2. GENERAL SPECIFICATIONS ................................................................................................................5 3. BLOCK DIAGRAM ...................................................................................................................................6 4. DETAILED SPECIFICATIONS ...............................................................................................................7 4.1 MECHANICAL SPECIFICATIONS......................................................................................................7 4.2 ABSOLUTE MAXIMUM RATINGS ....................................................................................................7 4.3 ELECTRICAL CHARACTERISTICS...................................................................................................8 4.3.1 Driving for LCD panel signal processing board ............................................................................8 4.3.2 Working for backlight lamp ...........................................................................................................9 4.3.3 Power supply voltage ripple.........................................................................................................10 4.3.4 Fuse..............................................................................................................................................10 4.4 POWER SUPPLY VOLTAGE SEQUENCE ........................................................................................ 11 4.4.1 Sequence for LCD panel signal processing board ....................................................................... 11 4.4.2 Sequence for backlight inverter (Option)..................................................................................... 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 plugs and a 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 FOR LCD PANEL SIGNAL PROCESSING BOARD ...........................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 for transmissive mode............................................................................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. RELIABILITY TESTS.............................................................................................................................24 6. PRECAUTIONS .......................................................................................................................................25 6.1 MEANING OF CAUTION SIGNS ......................................................................................................25 6.2 CAUTIONS ..........................................................................................................................................25 6.3 ATTENTIONS ......................................................................................................................................25 6.3.1 Handling of the product ...............................................................................................................25 6.3.2 Environment.................................................................................................................................26 6.3.3 Characteristics..............................................................................................................................26 6.3.4 Other ............................................................................................................................................26 7. OUTLINE DRAWINGS ...........................................................................................................................27 7.1 FRONT VIEW ......................................................................................................................................27 7.2 REAR VIEW ........................................................................................................................................28
DATA SHEET DOD-PD-0072 (2nd edition)
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1. OUTLINE
1.1 STRUCTURE AND PRINCIPLE NL6448BC33-54 module 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. PC, 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 APPLICATIONS * Display terminal for control system * Industrial PC 1.3 FEATURES * High luminance * High contrast * 6-bit digital RGB signals * DE (Data enable) function * Reversible-scan direction * Edge light type (Inverter less) * Replaceable lamp for backlight * Acquisition product for UL60950 3rd edition/CSA C22.2 No.60950 (File number: E170632)
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2. GENERAL SPECIFICATIONS
Display area Diagonal size of display Drive system Display color Pixel Pixel arrangement Dot pitch Pixel pitch Module size Weight Contrast ratio Viewing angle 211.2 (W) x 158.4 (H) mm (typ.) 26 cm (10.4 inches) a-Si TFT active matrix 262,144 colors 640 (H) x 480 (V) pixels RGB (Red dot, Green dot, Blue dot) vertical stripe 0.11 (W) x 0.33 (H) mm 0.33 (W) x 0.33 (H) mm 243.0 (W) x 185.1 (H) x 10.5 (D) mm (typ.) 465 g (typ.) 350:1 (typ.) At the contrast ratio 10:1 * Horizontal: Right side 45 (typ.), Left side 45 (typ.) * Vertical: Up side 30 (typ.), Down side 20 (typ.) At DPS= Low or Open: Normal scan * Viewing direction without image reversal: down side (6 o'clock) * Viewing direction with contrast peak: normal axis * Viewing angle with optimum grayscale (=2.2): normal axis Clear 3H (min.) [by JIS K5400] At LCD panel center 40 % (typ.) [against NTSC color space] Ton (white 90% black 10%) 15 ms (typ.) At IBL= 5.0mArms / lamp 220 cd/m2 (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. 104LHS35 Recommended inverter (Option) * Inverter: Type No.: 104PW161, 104PW191 Power consumption At IBL= 5.0mArms / lamp and checkered flag pattern 5.8 W (typ.)
DATA SHEET DOD-PD-0072 (2nd edition)
Designed viewing direction
Polarizer surface Polarizer pencil-hardness Color gamut Response time Luminance Signal system
Power supply voltage Backlight
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3. BLOCK DIAGRAM
Host LCD module (Product) 100 R0 to R5 100 G0 to G5 100 B0 to B5 100 CLK 100 Hsync Vsync DE 47k DPS 8.2k
Power supply for gradation
H-driver
Controller
1,920 lines
100 V-driver 100 480 lines LCD panel H: 640 x 3 (R,G,B) V: 480
GND Note1 Note2 VCC
Fuse
DC/DC converter
FG Note1 Note2 VDDB GNDB Note1 Note2
LCD panel signal processing board Backlight (Edge light type)
VBLH
Backlight inverter (Option)
Lamp Lamp
VBLH VBLC Note1
Metallic frame of lamp holder
Note1: Connections between GND (Signal ground), FG (Frame ground) and VBLC (Lamp low voltage terminal) in the LCD module GND - FG Not connected GND - VBLC Not connected FG - VBLC Not connected Note2: These grounds should be connected together in customer equipment.
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4. DETAILED SPECIFICATIONS
4.1 MECHANICAL SPECIFICATIONS
Parameter Module size Display area Weight Specification 243.0 0.5 (W) x 185.1 0.5 (H) x 10.5 0.5 (D) 211.2 (W) x 158.4 (H) 465 (typ.), 490 (max.) Note1 Note1 Unit mm mm g
Note1: See "7. OUTLINE DRAWINGS". 4.2 ABSOLUTE MAXIMUM RATINGS
Parameter Power supply voltage LCD panel signal processing board Lamp voltage Display signals Note1 Function signal Note2 Storage temperature Front surface Operating temperature Rear surface TopR -10 to +70 95 RH 85 AH 70 Note6 % g/m3 40 < Ta 50C Ta > 50C C % Note4 Ta 40C Symbol VCC VBLH VD VF Tst TopF Rating -0.3 to +6.5 1,500 -0.3 to VCC+0.3 -0.3 to VCC+0.3 -20 to +80 -10 to +70 Unit V Vrms Ta = 25C V V C C Note3 Remarks
Input voltage for signals
Relative humidity Note5 Absolute humidity Note5
Note1: Display signals are CLK, Hsync, Vsync, DE, R0 to R5, G0 to G5 and B0 to B5. Note2: Function signal is 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: Ta = 50C, RH = 85%
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4.3 ELECTRICAL CHARACTERISTICS 4.3.1 Driving for LCD panel signal processing board (Ta = 25C)
Parameter Symbol min. 3.0 Power supply voltage VCC 4.75 Power supply current ICC Logic input voltage for display signals Low High Low Input voltage for DPS signal High VFH 0.7VCC VCC V VDL VDH VFL 0 0.7VCC 0 5.0 180 Note1 120 Note1 5.25 300 Note2 200 Note2 0.3VCC VCC 0.3VCC V mA mA V V CMOS level V at VCC = 5.0V at VCC = 3.3V at VCC = 5.0V typ. 3.3 max. 3.6 Unit V Remarks at VCC = 3.3V
Note1: Checkered flag pattern [by EIAJ ED-2522] Note2: Pattern for maximum current
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4.3.2 Working for backlight lamp (Ta=25C, Note1)
Parameter Lamp current Lamp voltage Lamp starting voltage Oscillation frequency Symbol IBL VBLH VS 1100 FO 50 70 Vrms kHz min. 2.0 850 typ. 5.0 520 max. 5.5 Unit mArms Vrms Vrms Remarks at IBL=5.0mArms: 220cd/m2 Note3, Note4 Note2, Note3 Ta = 25C Note2, Note3 Ta = -10C Note2, Note3 Note5
Note1: This product's backlight consists of 2 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 the voltage value between low voltage side (Cold) and high voltage side (Hot). Note3: The asymmetric ratio of working waveform for lamps (Lamp voltage peak ratio, Lamp 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). Pa 0 Pb Sa Sb Pa - Pb x 100 5 % Pb Sa - Sb x 100 5 % Sb
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 Note4: This product consists of 2 lamps. 2 lamps contain in the 1 lamp holder, and both lamps are 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. Note5: In case "FO" is not the recommended value, beat noise may display on the screen, because of interference between "FO" and "1/th". Recommended value of "FO" is as following. 1 1 x (2n-1) x FO = th 4 th: Horizontal synchronous cycle (See "4.9 INPUT SIGNAL TIMINGS FOR LCD PANEL SIGNAL PROCESSING BOARD".) n: Natural number (1, 2, 3 ) Note6: Method of lamp cable installation may invite fluctuation of lamp current and voltage or asymmetric of lamp working waveform. When designing method of lamp cable installation, evaluate the fluctuation of lamp current, voltage and working waveform sufficiently.
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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.
Parameter Power supply voltage 3.3 V VCC 5.0 V Ripple voltage Note1 (Measure at input terminal of power supply) 100 100 Unit mVp-p mVp-p
Note1: The permissible ripple voltage includes spike noise. 4.3.4 Fuse
Fuse Type FCC16162AB Supplier KAMAYA ELECTRIC Co., Ltd.
Parameter
Rating 1.6A
Fusing current
Remarks
VCC
3.2A 32V
Note1
Note1:The power supply capacity should be more than the fusing current. If the power supply capacity is less than the fusing current, the fuse may not blow for a short time, and then nasty smell, smoking and so on may occur.
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4.4 POWER SUPPLY VOLTAGE SEQUENCE 4.4.1 Sequence for LCD panel signal processing board
ON OFF
VCC Note1
3.0V or 4.75V 0V Tr < 30ms Toff > 50ms
Display and function signals Note2
VALID period 0ms < t < 35ms 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 (CLK, Hsync, Vsync, DE, R0 to R5, G0 to G5, B0 to B5) and function (DPS) signal 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 once again, it might not work normally. If customer stops the display and function signals, they should be cut VCC.
4.4.2 Sequence for backlight inverter (Option) Note2 Display and function signals Note1
VALID period
VDDB
Note1: These are the display and function signals for LCD panel signal processing board. Note2: The backlight inverter voltage (VDDB) should be inputted within the valid period of display and function signals, in order to avoid unstable data display.
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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 (Hirose Electric Co., Ltd.) Adaptable plug: DF9-31S-1V (Hirose Electric Co., Ltd.)
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Symbol GND CLK Hsync Vsync GND R0 R1 R2 R3 R4 R5 GND G0 G1 G2 G3 G4 G5 GND B0 B1 B2 B3 B4 B5 GND DE VCC VCC N.C. DPS Signal Ground Dot clock Horizontal synchronous Vertical synchronous Ground Red data (LSB) Red data Red data Red data Red data Red data (MSB) Ground Green data (LSB) Green data Green data Green data Green data Green data (MSB) Ground Blue data (LSB) Blue data Blue data Blue data Blue data Blue data (MSB) Ground Selection of DE / Fixed mode Power supply Power supply Selection of scan direction Most significant bit Data enable signal: DE mode High or Open: Fixed mode Keep this terminal Open. High: Reverse scan Low or Open: Normal scan Most significant bit Least significant bit Most significant bit Least significant bit Least significant bit Remarks
Note1
Note1
Note1: See "4.8 SCANNING DIRECTIONS".
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4.5.2 Backlight lamp Attention: VBLH and VBLC must be connected correctly. If customer connects wrongly, customer will be hurt and the module will be broken. CN2 plug: BHR-03VS-1 (J.S.T Mfg. Co., Ltd.) Adaptable socket: SM03 (4.0) B-BHS-TB (J.S.T Mfg. Co., Ltd.)
Pin No. 1 2 3 Symbol VBLC VBLH VBLH Signal Low voltage (Cold) High voltage (Hot) High voltage (Hot) Remarks Cable color: Gray Cable color: White Cable color: White
4.5.3 Positions of plugs and a socket
Low voltage (Cold) CN2 1 3 High voltage (Hot) Caution label
Rear side
1 3 31 CN1
2
30
Barcode label
Name plate
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4.6 DISPLAY COLORS AND INPUT DATA SIGNALS This product can display in equivalent to 262,144 colors in 64 scale. Also the relation between display colors and input data signals is as the following table.
Data signal (0: Low level, 1: High level) R 5 R 4 R 3 R 2 R 1 R 0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1 B0 0 0 1 1 0 0 1 1 0 0 0 0 0 1 1 0 0 1 1 0 0 0 0 0 1 1 0 0 1 1 0 0 0 : : 1 1 1 0 0 0 1 1 1 0 0 0 1 1 1 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 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 1 1 0 0 0 1 1 1 0 0 0 1 1 1 0 0 0 : : 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 1 1 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 : : 1 1 1 0 0 0 0 1 1 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 : : 1 1 1 0 1 1 1 0 1 0 0 1 1 0 0 1 1 0 0 0 0 0 1 1 0 0 1 1 0 0 1 0 0 1 1 0 0 1 1 0 1 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 0 0 0 : : 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 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 0 0 0 0 1 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 0 1 0 1 0 1 0 0 0 0 1 0 1 0 1 0 1 0 0 0 0 1 0 1 0 1 0 1 0 0 0 : : 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 0 0 0 1 0 1 0 1 0 1 0 0 0 0 1 0 1 0 1 0 1 0 0 0
Display colors Black Blue Red Magenta Green Cyan Yellow White Black dark bright Red Black dark bright Green Black dark bright Blue
Basic colors
Red scale
Green scale
Blue scale
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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
C( C( 0, 0, * * * C( 0, Y) * * * C( C( 0,478) 0,479) C( C(
G
0) 1)
B
C( C( 1, 1, * * * C( 1, Y) * * * 1,478) 1,479) 0) 1) *** *** * *** * *** * *** * *** *** C( C( C( C( X, 0) X, 1) * * * C( X, Y) * * * X,478) X,479) *** *** * *** * *** * *** * *** *** C(638, C(638, * * * C(638, Y) * * * C(638,478) C(638,479) 0) 1) C(639, C(639, * *** * C(639, Y) * * * C(639,478) C(639,479) 0) 1)
4.8 SCANNING DIRECTIONS The following figures are seen from a front view. Also the arrow shows the direction of scan.
C (0,0) D (0,0) C (639,0) D (639,0)
C (0,479) D (0,479)
C (639,479) D (639,479)
Note1
Figure 1. Normal scan (DPS: Low or Open)
C (0,0) D (639,479) C (639,0) D (0,479)
C (0,479) D (639,0)
C (639,479) D (0,0)
Note1
Figure 2. Reverse scan (DPS: High) 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
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4.9 INPUT SIGNAL TIMINGS FOR LCD PANEL SIGNAL PROCESSING BOARD 4.9.1 Outline of input signal timings * Horizontal signal
Horizontal synchronizing cycle (th) Horizontal synchronizing pulse width (thp)
Hsync Note1
Horizontal back-porch (thb) Horizontal front-porch (thf)
Display period
Horizontal display period (thd)
DE (Data enable)
Note1: Fixed mode cannot be used while working of DE mode. Note2: This diagram indicates virtual signal for set up to timing.
* Vertical signal
Vertical synchronizing cycle (tv) Vertical synchronizing pulse width (tvp)
Vsync Note1
Vertical back-porch (tvb) Vertical front-porch (tvf)
Display period Note2
Vertical display period (tvd)
DE (Data enable) 1 2 3 4 480 Note3
Note1: Fixed mode cannot be used while working of DE mode. Note2: This diagram indicates virtual signal for set up to timing. Note3: See "4.9.3 Input signal timing chart" for numeration of pulse.
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4.9.2 Timing characteristics (a) Fixed mode (Note1)
Parameter Frequency Duty Rise time, Fall time Setup time CLK-DATA Hold time Rise time, Fall time Cycle Display period Front-porch Pulse width Back-porch Total of pulse width and back-porch Setup time CLK- Hsync Hold time Rise time, Fall time Cycle Display period Front-porch Pulse width Back-porch Total of pulse width and back-porch Hsync-Vsync timing Vsync-Hsync timing Rise time, Fall time Symbol 1/tc tcd tcrf tds tdh tdrf th thd thf thp thb thp + thb ths thh thrf tv tvd tvf tvp tvb tvp + tvb thv tvh tvrf min. 21.0 0.4 8 12 30.0 typ. 25.175 0.5 31.778 800 640 16 96 48 144 16.683 525 480 12 2 31 33 max. 29.0 0.6 10 10 33.6 Unit MHz ns ns ns ns Remarks 39.72 ns (typ.) -
CLK DATA (R0-R5) (G0-G5) (B0-B5)
31.468 kHz (typ.)
s
CLK CLK CLK CLK CLK CLK ns ns ns ms H H H H H H CLK ns ns
Hsync
10 8 12 16.1
134 10 17.2
Note2
59.94 Hz (typ.)
Vsync
1 1 30 -
32 10
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.
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(b) DE mode (Note1, Note2)
Parameter Frequency Duty Rise time, Fall time Setup time CLK-DATA Hold time Rise time, Fall time Pulse width Setup time Vsync-DE timing Hold time Rise time, Fall time Horizontal Vertical (One frame) Cycle Display period DE Cycle Symbol 1/tc tcd tcrf tds tdh tdrf tvp tvds tvdh tvrf th thd tv tvd tdes tdeh tderf 16.1 8 12 min. 21.0 0.4 8 12 1 1 1 30.0 typ. 25.175 0.5 2 31.778 800 640 16.683 525 480 max. 29.0 0.6 10 10 10 33.6 17.2 10 Unit MHz ns ns ns ns H CLK CLK Remarks 39.72 ns (typ.) -
CLK DATA (R0-R5) (G0-G5) (B0-B5) Vsync
-
31.468 kHz (typ.) 59.94 Hz (typ.) -
s s
CLK CLK ms H H ns ns ns
Display period Setup time CLK-DE Hold time Rise time, Fall time
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.
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4.9.3 Input signal timing chart (a) Fixed mode Vsync
1H tvp tvb 33H (fixed) tvd 480H (fixed) tvf 12H (fixed)
Hsync
12 3 1
Hsync
DATA (R0-R5) (G0-G5) (B0-B5)
INVALID
D(X,0)
D(X,Y)
D(X,478)D(X,479)
INVALID (Note: X=0 to 639)
Hsync
DATA (R0-R5) (G0-G5) (B0-B5)
INVALID
D(0,Y)D(1,Y)
D(X,Y)
D(638,Y)D(639,Y)
INVALID
Hsync
thp thb 144H (fixed)
1CLK
thd 640H (fixed)
thf 16H (fixed)
CLK
1 2 1
DATA (R0-R5) (G0-G5) (B0-B5)
INVALID
D(0,Y)D(1,Y)
D(639,Y)
INVALID (Note: Y=0 to 479)
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(b) DE mode
Horizontal timing
CLK DATA (R0-R5) (G0-G5) (B0-B5) DE
thd th INVALID 1 2 639 640 INVALID
Vertical timing
tvp
Vsync DATA (R0-R5) (G0-G5) (B0-B5) DE
tvd tv
INVALID 12 tvds tvdh 479 480
INVALID
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(c) Common
tc tch
CLK
0.7VCC 0.5VCC 0.3VCC
tcrf
tcrf
tds
tdh
DATA 0.7VCC (R0-R5) (G0-G5) 0.5VCC (B0-B5) 0.3VCC
INVALID
tdrf
tdrf
tdeh
tdes
tdeh
tdes
DE
0.7VCC 0.5VCC 0.3VCC
tderf tderf
CLK
0.5VCC
thh ths
0.7VCC Hsync 0.5VCC 0.3VCC
thrf
Hsync
0.5VCC
thv tvh
Vsync
0.7VCC 0.5VCC 0.3VCC
tvrf
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NL6448BC33-54
4.10 OPTICS 4.10.1 Optical characteristics
Parameter Note1 Condition White at center R = 0, L = 0, U = 0, D = 0 White/Black at center R = 0, L = 0, U = 0, D = 0 x coordinate y coordinate x coordinate y coordinate x coordinate y coordinate x coordinate y coordinate R = 0, L = 0, U = 0, D = 0 at center, against NTSC color space White to Black Response time Black to White Right Viewing angle Left Up Down U = 0, D = 0, CR = 10 U = 0, D = 0, CR = 10 R = 0, L = 0, CR = 10 R = 0, L = 0, CR = 10 Toff R L U D 35 35 20 10 23 45 45 30 20 85 ms Symbol L CR LU Wx Wy Rx Ry Gx Gy Bx By C Ton min. 150 150 0.256 0.290 35 typ. 220 350 1.25 0.286 0.320 0.580 0.332 0.293 0.536 0.146 0.119 40 15 max. 1.40 0.316 0.350 40 Unit cd/m2 % ms Note5 Note6 Note4 Remarks Note2 Note3
Luminance Contrast ratio Luminance uniformity White
Red Chromaticity Green
Blue Color gamut

Note7
Note1: Measurement conditions are as follows. Ta=25C, VCC=3.3V, IBL= 5.0mArms/lamp, Display mode: VGA, Horizontal cycle = 31.468kHz, Vertical cycle = 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 method for luminance is as follows.
50cm Photodetector (TOPCON BM-5A)
LCD module 1 (Product)
Note2: See "4.10.2 Definition of contrast ratio". Note3: See "4.10.3 Definition of luminance uniformity". Note4: These coordinates are found on CIE 1931 chromaticity diagram. Note5: Product surface temperature: TopF = 31C Note6: See "4.10.4 Definition of response times". Note7: See "4.10.5 Definition of viewing angles".
DATA SHEET DOD-PD-0072 (2nd edition)
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4.10.2 Definition of contrast ratio The contrast ratio is calculated by using the following formula. Luminance of white screen Contrast ratio (CR) = Luminance of black screen 4.10.3 Definition of luminance uniformity The luminance uniformity is calculated by using following formula. Maximum luminance from x to | Luminance uniformity (LU) = Minimum luminance from x to | The luminance is measured at near the 5 points shown below.
106 80 320 533
x z {
y
240 400
|
4.10.4 Definition of response times Response time is measured, the luminance changes from "white" to "black", or "black" to "white" on the same screen point, by photo-detector. Ton is the time it takes the luminance change from 90% down to 10%. Also Toff is the time it takes the luminance change from 10% up to 90% (See the following diagram.).
White Luminance 100% 90%
Black
10% 0% Ton Toff
4.10.5 Definition of viewing angles
Normal axis (Perpendicular) 12 o'clock
L
Left D
U
Upper R
Lower
Right
DATA SHEET DOD-PD-0072 (2nd edition)
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NL6448BC33-54
5. RELIABILITY TESTS
Test item High temperature and humidity (Operation) High temperature (Operation) Condition x 60 2C, RH = 90%, 240hours y Display data is black. x 70 2C, 240hours y Display data is black. x -10 3C...1hour 70 3C...1hour y 50cycles, 4hours/cycle z Display data is black. x -20 3C...30minutes 80 3C...30minutes y 100cycles, 1hour/cycle z Temperature transition time is within 5 minutes. x 150pF, 150, 10kV y 9 places on a panel surface Note2 z 10 times each places at 1 sec interval x Sample dust: No. 15 (by JIS-Z8901) y 15 seconds stir z 8 times repeat at 1 hour interval x 5 to 100Hz, 19.6m/s2 y 1 minute/cycle z X, Y, Z direction { 120 times each directions x 539m/ s2, 11ms y X, Y, Z direction z 5 times each directions No display malfunctions Note1 Judgement

Heat cycle (Operation)
Thermal shock (Non operation)
ESD (Operation) Dust (Operation)
Vibration (Non operation)
No display malfunctions No physical damages Note1
Mechanical shock (Non operation)
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-PD-0072 (2nd edition)
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NL6448BC33-54
6. PRECAUTIONS
6.1 MEANING OF CAUTION SIGNS The following caution signs have very important meaning. Be sure to read "10.2 CAUTIONS" and "10.3 ATTENTIONS", after understanding this 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. Customer will be in danger of an electric shock.
Do not touch the working backlight. Customer will be in 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/s2 and to be not greater 11ms, Pressure: To be not greater 19.6 N)
6.3 ATTENTIONS
!
6.3.1 Handling of the product x Take hold of both ends without touch the circuit board cover when customer pulls out products (LCD modules) from inner packing box. If customer touches it, products may be broken down or out of adjustment, because of stress to mounting parts. y Do not hook cables nor pull connection cables such as lamp cable and so on, for fear of damage. z If customer puts down the product temporarily, the product puts on flat subsoil as a display side turns down. { Take the measures of electrostatic discharge such as earth band, ionic shower and so on, when customer deals with the product, because products may be damaged by electrostatic. | The torque for mounting screws must never exceed 0.294Nm. Higher torque values might result in distortion of the bezel. } 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) except mounting hole portion. Bends or twist described above and undue stress to any portion except mounting hole portion may cause display un-uniformity.
DATA SHEET DOD-PD-0072 (2nd edition)
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~ Do not press or rub on the sensitive display surface. If customer clean on the panel surface, NEC recommends using the cloth with ethanolic liquid such as screen cleaner for LCD. Do not push-pull the interface connectors while the product is working, because wrong power sequence may break down the product. 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. This damage may cause a lamp breaking and abnormal operation of high voltage circuit. 6.3.2 Environment x Do not operate or store in high temperature, high humidity, dewdrop atmosphere or corrosive gases. Keep the product in antistatic pouch in room temperature, because of avoidance for dusts and sunlight, if customer stores the product. y In order to prevent dew condensation occurring by temperature difference, the product packing box must be opened after leave under the environment of an unpacking room temperature enough. Because a situation of dew condensation occurring is changed by the environmental temperature and humidity, evaluate the leaving time sufficiently. (Recommendation leaving time: 6 hour or more with packing state) z Do not operate in high magnetic field. Circuit boards may be broken down by it. { This product is not designed as radiation hardened. | Use an original protection sheet on the product surface (polarizer). Adhesive type protection sheet should be avoided, because it may change color or properties of the polarizer. 6.3.3 Characteristics The following items are neither defects nor failures. x Response time, luminance and color may be changed by ambient temperature. y The LCD may be seemed luminance non-uniformity, flicker, vertical seam or small spot by display patterns. z Optical characteristics (e.g. luminance, display uniformity, etc.) gradually is going to change depending on operating time, and especially low temperature, because the LCD has cold cathode fluorescent lamps. { 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. | The display color may be changed by viewing angle because of the use of condenser sheet in the backlight. } Optical characteristics may be changed by input signal timings. ~ The interference noise of input signal frequency for this product's signal processing board and luminance control frequency of customer's backlight inverter may appear on a display. Set up luminance control frequency of backlight inverter so that the interference noise does not appear. 6.3.4 Other x All GND, backlight inverter ground (GNDB), VCC and backlight inverter power supply voltage (VDDB) terminals should be used without a non-connected line. y Do not disassemble a product or adjust volume without permission of NEC. z See "REPLACEMENT MANUAL FOR LAMP HOLDER SET", if customer would like to replace backlight lamps. { Pay attention not to insert waste materials inside of products, if customer uses screwnails. | Pack the product with original shipping package, because of avoidance of some damages during transportation, when customer returns it to NEC for repair and so on.
DATA SHEET DOD-PD-0072 (2nd edition)
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7. OUTLINE DRAWINGS
7.1 FRONT VIEW
Note1: The values in parentheses are for reference. Note2: The torque for mounting screws must never exceed 0.294Nm. Note3: Mounting hole portions (4 pieces)
DATA SHEET DOD-PD-0072 (2nd edition)
Unit: mm
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NL6448BC33-54
7.2 REAR VIEW
Note1: The values in parentheses are for reference. Note2: The torque for mounting screws must never exceed 0.294Nm.
Unit: mm
DATA SHEET DOD-PD-0072 (2nd edition)
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