NEC NL6448BC33-53 Tft color lcd module Datasheet

TFT COLOR LCD MODULE
NL6448BC33-53
26cm (10.4 Type)
VGA
PRELIMINARY DATA SHEET
(2nd edition)
All information is subject to change without notice.
Please confirm the delivery specification before starting to
design your system.
Document Number: DOD-M- 1309 (2nd edition)
Published date: January 2003 CP(N)
1
ã NEC Corporation
2003 All rights reserved.
NL6448BC33-53
INTRODUCTION
No part of this document shall be copied in any form or by any means without the prior written consent
of NEC Corporation.
NEC Corporation does not assume any liability for infringement of patents, copyrights or other
intellectual property rights of third parties by or arising from use of a 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 Corporation or of others.
While NEC Corporation 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 Corporation sales representative in advance.
Anti-radioactive design is not implemented in this product.
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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 plug 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................................................................................................................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
REVISION HISTORY .................................................................................................................................29
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NL6448BC33-53
1. OUTLINE
1.1 STRUCTURE AND PRINCIPLE
NL6448BC33-53 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
• Ultra-wide viewing angle
• High luminance
• High contrast
• 6-bit digital RGB signals
• Reversible-scan direction
• Edge light type
• Replaceable lamp for backlight (Inverter less)
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NL6448BC33-53
2. GENERAL SPECIFICATIONS
Display area
211.2 (W) × 158.4 (H) mm (typ.)
Diagonal size of display
26 cm (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 (W) × 0.33 (H) mm
Pixel pitch
0.33 (W) × 0.33 (H) mm
Module size
243.0 (W) × 185.1 (H) × 10.5 (D) mm (typ.)
Weight
475 g (typ.)
Contrast ratio
300:1 (typ.)
Viewing angle
At the contrast ratio 10:1
• Horizontal: Right side 85° (typ.), Left side 85° (typ.)
• Vertical: Up side 85° (typ.), Down side 85° (typ.)
Designed viewing direction
At DPS= Low or open: normal scan
• Viewing angle with optimum grayscale (γ=2.2): normal axis
Polarizer surface
Clear
Polarizer pencil-hardness
3H (min.) [by JIS K5400]
Color gamut
At LCD panel center
40 % (typ.) [against NTSC color space]
Response time
Ton (black 10% → white 90%)
24 ms (typ.)
Luminance
At 5.0mArms / lamp
350 cd/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
Edge light type: 2 cold cathode fluorescent lamps
Power consumption
2
2
Replaceable parts
• Lamp holder set: Type No. 104LHS39
2
Recommended inverter (Option)
• Inverter: Type No. 104PW191, 104PW161
2
At 5.0mArms / lamp and checkered flag pattern
6.2 W (typ.)
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NL6448BC33-53
3. BLOCK DIAGRAM
Host
LCD module (Product)
100Ω
H-driver
R0 to R5
100Ω
G0 to G5
100Ω
B0 to B5
100Ω
Hsync
1,920 lines
100Ω
V-driver
100Ω
DE
47kΩ
480 lines
Vsync
Controller
100Ω
CLK
LCD panel
H: 640 × 3 (R,G,B)
V: 480
DPS
8.2kΩ
Power supply
for gradation
GND
Note1
Note2
VCC
Fuse
FG
Note1
Note2
DC/DC
converter
LCD panel signal processing board
Backlight (Edge light type)
VBLH
VDDB
GNDB
Note1
Note2
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
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 (W) × 158.4 (H)
Note1
mm
Weight
475 (typ.), 500 (max.)
g
2
Note1: See "7. OUTLINE DRAWINGS".
4.2 ABSOLUTE MAXIMUM RATINGS
Parameter
Power supply
voltage
Symbol
Rating
Unit
LCD panel signal board
VCC
-0.3 to +6.5
V
Lamp voltage
Note1
VBLH
1,500
Vrms
Display signals
Note2
VD
-0.3 to VCC+0.3
V
Function signals
Note3
VF
-0.3 to VCC+0.3
V
Tst
-20 to +80
°C
-
Front surface
TopF
-10 to +70
°C
Note4
Rear surface
TopR
TBD
°C
Note5
≤ 95
%
Ta ≤ 40°C
≤ 85
%
40 < Ta ≤ 50°C
≤ 70
Note7
g/m3
Input voltage
for signals
Storage temperature
Remarks
Ta = 25°C
Operating temperature
Relative humidity
Note6
RH
Absolute humidity
Note6
AH
Ta > 50°C
Note1: "VBLH" is the voltage value between low voltage terminal (Cold) and high voltage terminal (Hot).
Note2: Display signals are CLK, Hsync, Vsync, DE and DATA (R0 to R5, G0 to G5, B0 to B5).
Note3: Function signal is DPS.
Note4: Measured at center of LCD panel surface (including self-heat)
Note5: Measured at center of LCD module's rear shield surface (including self-heat)
Note6: No condensation
Note7: Ta = 50°C, RH = 85%
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4.3 ELECTRICAL CHARACTERISTICS
4.3.1 Driving for LCD panel signal processing board
(Ta = 25°C)
Parameter
Symbol
Power supply voltage
VCC
Min.
Typ.
Max.
Unit
Remarks
3.0
3.3
3.6
V
for 3.3V system
4.75
5.0
5.25
V
for 5V system
280
Note1
200
Note1
400
Note2
280
Note2
mA
VCC = 3.3V
2
mA
VCC = 5.0V
2
Power supply current
ICC
-
Logic input voltage for
display signals
Low
VDL
0
-
0.3Vcc
V
High
VDH
0.7Vcc
-
Vcc
V
Low
VFL
0
-
0.3Vcc
V
High
VFH
0.7Vcc
-
Vcc
V
CMOS level
Input voltage for DPS signal
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=25°C Note1)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Lamp current
IBL
2.0
5.0
5.5
mArms
Lamp voltage
VBLH
-
520
-
Vrms
850
-
-
Vrms
TBD
-
-
Vrms
50
-
70
kHz
Lamp starting voltage
Oscillation frequency
VS
FO
Remarks
at IBL=5.0mArms:
350cd/m2
Note3
Note2, Note3
Ta = 25°C
Note2, Note3
Ta = -10°C
Note2, Note3
Note4
2
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 (Power supply voltage peak ratio,
power 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).
Pa - Pb
× 100 ≤ 5 %
Pb
Pa
Sa
0
Pb
Sb
Sa - Sb × 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: 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
× (2n-1)
×
FO =
th
4
th: Horizontal cycle (See "4.9 INPUT SIGNAL TIMINGS FOR LCD PANEL
SIGNAL PROCESSING BOARD".)
n: Natural number (1, 2, 3 ⋅⋅⋅⋅⋅⋅⋅⋅)
Note5: Method of lamp cable installation may invite fluctuation of lamp current and voltage or
asymmetric of lamp working waveform. When design the backlight inverter, evaluate the
fluctuation of lamp current and voltage or asymmetric of lamp 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
Ripple voltage
Note1
(Measure at input terminal of power supply)
Unit
3.3 V
≤ 100
mVp-p
5.0 V
≤ 100
mVp-p
VCC
Note1: The permissible ripple voltage includes spike noise.
4.3.4 Fuse
Parameter
Fuse
Type
Supplier
TBD
TBD
Rating
Fusing current
Remarks
TBD
Note1
TBD
VCC
TBD
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
OFF
ON
3.0V or 4.75V
VCC
Note1
0V
Toff > 50ms
Tr < 30ms
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)
signals 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.
Symbol
Signal
1
GND
Ground
2
CLK
Dot clock
3
Hsync
Horizontal synchronous
4
Vsync
Vertical synchronous
5
GND
Ground
6
R0
Red data (LSB)
7
R1
Red data
8
R2
Red data
9
R3
Red data
10
R4
Red data
11
R5
Red data (MSB)
12
GND
Ground
-
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
-
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)
26
GND
Ground
27
DE
Selection of DE / Fixed mode
28
VCC
Power supply
29
VCC
Power supply
30
NC
Non connection
31
DPS
Selection of scan direction
Remarks
-
Least significant bit
-
Most significant bit
-
-
Most significant bit
Data enable signal: DE mode
High or Open:
Fixed mode
Note1
High:
Reverse scan
Low or Open: Normal scan
Note1
Note1: See "4.7 DISPLAY POSITIONS AND 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:
Adaptable socket:
BHR-03VS-1 (J.S.T Mfg. Co., Ltd.)
SM03 (4.0) B-BHS-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 plug and a socket
Low voltage (Cold)
CN2
1
3
Rear side
Caution label
High voltage (Hot)
1
3
2
30
31
CN1
Barcode label
PRELIMINARY DATA SHEET DOD-M- 1309 (2nd edition)
Name plate
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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 scale. Also the relation between
display colors and input data signals is as the following table.
Data signal (0: Low level, 1: High level)
Display colors
Basic colors
Red scale
Black
Blue
Red
Magenta
Green
Cyan
Yellow
White
Black
dark
↑
↓
bright
Red
Black
Green scale
dark
↑
↓
bright
Green
Black
Blue scale
dark
↑
↓
bright
Blue
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
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
1
1
1
0
0
0
1
1
1
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
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
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
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
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
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
1
1
1
0
1
1
1
0
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
:
:
:
:
0
0
0
0
1
0
1
0
1
0
1
0
0
0
:
:
0
0
0
0
0
0
1
1
1
0
0
0
:
:
0
0
0
0
0
0
0
1
1
1
1
0
0
0
:
:
:
:
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
:
:
:
:
1
1
1
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0
0
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0
0
0
0
0
1
1
1
1
1
1
1
1
1
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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(
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.
C (0,0)
C (639,0)
D (0,0)
D (639,0)
Note1
C (0,479)
C (639,479)
D (0,479)
D (639,479)
Figure 1. Normal scan (DPS: Low or Open)
C (0,0)
C (639,0)
D (639,479)
D (0,479)
Note1
C (0,479)
C (639,479)
D (639,0)
D (0,0)
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
This diagram indicates virtual signal for set up to timing.
• 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
Symbol
Min.
Typ.
Max.
Unit
Remarks
Frequency
1/tc
21.0
25.2
29.0
MHz
39.7 ns (typ.)
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
30.0
31.8
33.6
Display period
CLK
DATA
(R0-R5)
(G0-G5)
(B0-B5)
Hsync
CLK-DATA
CLK
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
31.4 kHz (typ.)
Note2
CLK
Setup time
ths
8
-
-
ns
Hold time
thh
12
-
-
ns
Rise time, Fall time
thrf
-
-
10
ns
Cycle
tv
16.1
16.7
17.2
ms
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
Hsync- Vsync
thv
1
-
Vsync-Hsync
tvh
30
Rise time, Fall time
tvrf
-
CLK- Hsync
Vsync
µs
800
-
525
-
59.9 Hz (typ.)
H
33
Note2
H
-
CLK
-
-
ns
-
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.
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(b) DE mode
(Note1, Note2)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Remarks
Frequency
1/tc
21.0
25.2
29.0
MHz
39.7 ns (typ.)
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
tdrf
-
-
10
ns
CLK
DATA
(R0-R5)
(G0-G5)
(B0-B5)
CLK-DATA
Rise time, Fall time
Pulse width
Vsync
Vsync-DE
timing
tvp
1
2
-
H
Setup time
tvds
1
-
-
CLK
Hold time
tvdh
1
-
-
CLK
tvrf
-
-
10
µs
30.0
31.8
33.6
µs
-
800
-
CLK
Rise time, Fall time
Horizontal
DE
Vertical
(One frame)
CLK-DE
Cycle
th
Display period
thd
Cycle
tv
Display period
tvd
Setup time
tdes
8
-
-
ns
Hold time
tdeh
12
-
-
ns
tderf
-
-
10
ns
Rise time, Fall time
640
CLK
16.1
16.7
17.2
ms
-
525
-
H
480
H
-
-
-
31.4 kHz (typ.)
59.9 Hz (typ.)
-
-
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
tvd
33H (fixed)
tvf
480H (fixed)
12H (fixed)
Hsync
1 2
1
3
Hsync
DATA
(R0-R5)
(G0-G5)
(B0-B5)
D(X,0)
INVALID
D(X,478)D(X,479)
D(X,Y)
INVALID
(Note: X=0 to 639)
Hsync
DATA
(R0-R5)
(G0-G5)
(B0-B5)
D(0,Y)D(1,Y)
INVALID
Hsync
D(X,Y)
D(638,Y)D(639,Y)
INVALID
1CLK
thp
thb
thf
thd
640H (fixed)
144H (fixed)
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)
INVALID
1
2
639 640
INVALID
DE
thd
th
Vertical timing
tvp
Vsync
DATA
(R0-R5)
(G0-G5)
(B0-B5)
INVALID
INVALID
1 2
tvds
479 480
tvdh
DE
tvd
tv
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NL6448BC33-53
(c) Common
2
tc
tch
CLK
0.7VCC
0.5VCC
0.3VCC
tcrf
tcrf
tds
DATA
0.7VCC
(R0-R5)
(G0-G5) 0.5VCC
(B0-B5) 0.3VCC
tdrf
tdrf
tdeh
DE
tdh
INVALID
tdes
tdeh
0.7VCC
0.5VCC
0.3VCC
tderf
CLK
tdes
tderf
0.5VCC
thh
ths
0.7VCC
Hsync 0.5VCC
0.3VCC
thrf
Hsync
0.5VCC
thv
Vsync
0.7VCC
0.5VCC
0.3VCC
tvh
tvrf
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4.10 OPTICS
4.10.1 Optical characteristics
Parameter
Note1
Condition
Symbol
Min.
Typ.
Max.
Unit
Remarks
L
280
350
-
cd/m2
-
CR
150
300
-
-
Note2
-
LU
-
1.25
1.40
-
Note3
x coordinate
Wx
-
0.313
-
-
y coordinate
Wy
-
0.329
-
-
x coordinate
Rx
-
TBD
-
-
y coordinate
Ry
-
TBD
-
-
x coordinate
Gx
-
TBD
-
-
y coordinate
Gy
-
TBD
-
-
x coordinate
Bx
-
TBD
-
-
y coordinate
By
-
TBD
-
-
θR = 0°, θL = 0°, θU = 0°, θD = 0°
at center, against NTSC color space
C
35
40
-
%
Black to White
Ton
-
24
TBD
ms
White to Black
Toff
-
21
TBD
ms
Right
θU = 0°, θD = 0°, CR = 10
θR
70
85
-
°
Left
θU = 0°, θD = 0°, CR = 10
θL
70
85
-
°
Up
θR = 0°, θL = 0°, CR = 10
θU
70
85
-
°
Down
θR = 0°, θL = 0°, CR = 10
θD
70
85
-
°
White at center
θR = 0°, θL = 0°, θU = 0°, θD = 0°
White/Black at center
θR = 0°, θL = 0°, θU = 0°, θD = 0°
Luminance
Contrast ratio
Luminance uniformity
White
Red
Chromaticity
Green
Blue
Color gamut
Response time
Viewing angle
Note4
2
Note5
Note6
2
Note7
Note1: Measurement conditions are as follows.
Ta=25°C, VCC=3.3V, IBL= 5.0mArms/lamp, Display mode: VGA, Horizontal cycle =
31.4kHz, Vertical cycle = 59.9Hz, 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 = TBD°C
Note6: See "4.10.4 Definition of response times".
Note7: See "4.10.5 Definition of viewing angles".
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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 ① to ⑤
Luminance uniformity (LU) =
Minimum luminance from ① to ⑤
The luminance is measured at near the 5 points shown below.
106
320
533
①
80
②
③
240
④
400
⑤
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
100%
90%
Luminance
Black
10%
0%
Toff
Ton
4.10.5 Definition of viewing angles
Normal axis (Perpendicular)
12 o’clock
9 o’clock
θL
Left
θD
Lower
θU
Upper
θR
3 o’clock
Right
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5. RELIABILITY TESTS
2
Test item
Condition
High temperature and humidity
(Operation)
① 60 ± 3°C, RH = 90%, 240hours
② Display data is white.
High temperature
(Operation)
① 70 ± 3°C, 240hours
② Display data is white.
Heat cycle
(Operation)
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.
Thermal shock
(Non operation)
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
① 5 to 100Hz, 19.6m/s2
② 1 minute/cycle
③ X, Y, Z direction
④ 120 times each directions
Vibration
(Non operation)
Mechanical shock
(Non operation)
Judgement
① 539m/ s2, 11ms
② ±X, ±Y, ±Z direction
③ 5 times each directions
No display malfunctions Note1
No display malfunctions Note1
No physical damages
Note1: Display functions are checked under the same conditions as product inspection.
Note2: See the following figure for discharge points.
¡
¡
¡
¡
¡
¡
¡
¡
¡
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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 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 TBD N)
6.3 ATTENTIONS
!
6.3.1 Handling of the product
① 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.
② Do not hook cables nor pull connection cables such as lamp cable and so on, for fear of damage.
③ If customer puts down the product temporarily, the product puts on flat subsoil as a display side
turns down.
④ 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.
⑤ The torque for mounting screws must never exceed 0.294N⋅m. Higher torque values 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) except
mounting hole portion.
Bends or twist described above and undue stress to any portion except mounting hole portion may
cause display un-uniformity.
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NL6448BC33-53
⑦ Do not press or rub on the sensitive display surface. If customer clean on the panel surface, NEC
Corporation recommends using the cloth with ethanolic liquid such as screen cleaner for LCD.
⑧ Do not push-pull the interface connectors while the product is working, because wrong power
sequence may break down the product.
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. This damage may cause a lamp breaking and abnormal
operation of high voltage circuit.
6.3.2 Environment
① 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.
② 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)
③ Do not operate in high magnetic field. Circuit boards may be broken down by it.
④ 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.
① Response time, luminance and color may be changed by ambient temperature.
② The LCD may be seemed luminance non-uniformity, flicker, vertical seam or small spot by display
patterns.
③ 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.
④ 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.
⑤ The display color may be changed by viewing angle because of the use of condenser sheet in the
backlight.
⑥ Optical characteristics may be changed by input signal timings.
⑦ 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
① All GND, backlight inverter ground (GNDB), VCC and backlight inverter power supply voltage
(VDDB) terminals should be used without a non-connected line.
② Do not disassemble a product or adjust volume without permission of NEC Corporation.
③ See "REPLACEMENT MANUAL FOR LAMP HOLD ERSET", if customer would like to replace
backlight lamps.
④ Pay attention not to insert waste materials inside of products, if customer uses screwnails.
⑤ Pack the product with original shipping package, because of avoidance of some damages during
transportation, when customer returns it to NEC Corporation for repair and so on.
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NL6448BC33-53
7. OUTLINE DRAWINGS
7.1 FRONT VIEW
Note1: The values in parentheses are for reference.
Note2: The torque for mounting screws must never exceed 0.294N⋅m.
Note3:
Mounting hole portions (4 pieces)
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NL6448BC33-53
7.2 REAR VIEW
Note1: The values in parentheses are for reference.
Note2: The torque for mounting screws must never exceed 0.294N⋅m.
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