NEC NL6448BC20-21C Technical data

TFT COLOR LCD MODULE

NL6448BC20-21C

17cm (6.5 Type)

VGA

PRELIMINARY DATA SHEET

DOD-PP-0321 (2nd edition)

This PRELIMINARY DATA SHEET is updated document from DOD-PP-0269(1).

All information is subject to change without notice. Please confirm the sales representative before starting to design your system.

Document Number: DOD-PP-0321 (2nd edition) Published date: July 2007 CP(N)

NL6448BC20-21C

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.

PRELIMINARY DATA SHEET DOD-PP-0321 (2nd edition)

NL6448BC20-21C

INTRODUCTION ..........................................................................................................................................2

1. OUTLINE....................................................................................................................................................4

1.1 STRUCTURE AND PRINCIPLE...........................................................................................................4

1.2 APPLICA TION.......................................................................................................................................4

1.3 FEATURES.............................................................................................................................................4

2. GENERAL SPECIFICATIONS ................................................................................................................5

3. BLOCK DIAGRAM...................................................................................................................................6

4. DETAILED SPECIFICATIONS...............................................................................................................8

4.1 MECHANICAL SPECIFICATIONS......................................................................................................8

4.2 ABSOLUTE MAXIMUM RATINGS....................................................................................................8

4.3 ELECTRICAL CHARACTERISTICS...................................................................................................9

4.3.1 LCD panel signal processing board...............................................................................................9

4.3.2 Backlight......................................................................................................................................10

4.3.3 Power supply voltage ripple.........................................................................................................10

4.3.4 Fuse..............................................................................................................................................10

4.4 POWER SUPPLY VOLTAGE SEQUENCE........................................................................................11

4.4.1 LCD panel signal processing board.............................................................................................11

4.4.2 LED lighting circuit.....................................................................................................................11

4.5 CONNECTIONS AND FUNCTIONS FOR INTERFACE PINS.........................................................12

4.5.1 LCD panel signal processing board.............................................................................................12

4.5.2 Backlight lamp.............................................................................................................................13

4.5.3 Positions of plug and socket ........................................................................................................13

4.5.4 Connection between receiver and transmitter for LVDS .............................................................14

4.5.5 Input data mapping ......................................................................................................................17

4.6 DISPLAY COLORS AND INPUT DATA SIGNALS ..........................................................................19

4.6.1 Combinations between input data signals and FRC signal..........................................................19

4.6.2 16,777,216 colors.........................................................................................................................20

4.6.3 262,144 colors..............................................................................................................................21

4.7 DISPLAY POSITIONS.........................................................................................................................22

4.8 SCANNING DIRECTIONS.................................................................................................................22

4.9 INPUT SIGNAL TIMINGS..................................................................................................................23

4.9.1 Outline of input signal timings ....................................................................................................23

4.9.2 Timing characteristics..................................................................................................................24

4.9.3 Input signal timing chart..............................................................................................................25

4.10 OPTICS...............................................................................................................................................26

4.10.1 Optical characteristics................................................................................................................26

4.10.2 Definition of contrast ratio.........................................................................................................27

4.10.3 Definition of luminance uniformity...........................................................................................27

4.10.4 Definition of response times......................................................................................................27

4.10.5 Definition of viewing angles......................................................................................................27

5. RELIABILITY TESTS.............................................................................................................................28

6. PRECAUTIONS .......................................................................................................................................29

6.1 MEANING OF CAUTION SIGNS......................................................................................................29

6.2 CAUTIONS..........................................................................................................................................29

6.3 A TTENTI ONS......................................................................................................................................29

6.3.1 Handling of the product...............................................................................................................29

6.3.2 Environment.................................................................................................................................30

6.3.3 Characteristics..............................................................................................................................30

6.3.4 Other............................................................................................................................................30

7. OUTLINE DRAWINGS...........................................................................................................................31

7.1 FRONT VIEW......................................................................................................................................31

7.2 REAR VIEW ........................................................................................................................................32

REVISION HISTORY.................................................................................................................................33

PRELIMINARY DATA SHEET DOD-PP-0321 (2nd edition)

1. OUTLINE

1.1 STRUCTURE AND PRINCIPLE

Color LCD module NL6448BC20-21C 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

• Adoption of ST-NLT (Super-Transmissive Natural Light TFT)

• High luminance

• High contrast

• Wide viewing angle

• Wide temperature range

• LVDS interface

• Reversible-scan direction

• Selectable 8bit or 6bit digital signals for data of RGB

• LED backlight type

• Replaceable LED holder for backlight

NL6448BC20-21C

PRELIMINARY DATA SHEET DOD-PP-0321 (2nd edition)

2. GENERAL SPECIFICATIONS

Display area Diagonal size of display

NL6448BC20-21C

132.48 (H) × 99.36 (V) mm 17cm (6.5 inches)

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

a-Si TFT active matrix 16,777,216 colors (At 8-bit input, FRC terminal= High)

262,144 colors (At 6-bit input, FRC terminal= Low or Open) 640 (H) × 480 (V) pixels

RGB (Red dot, Green dot, Blue dot) vertical stripe

0.0690 (H) × 0.2070 (V) mm

0.2070 (H) × 0.2070 (V) mm

153.0 (W) × 118.0 (H) × 9.0 (D) mm (typ.) TBD g (typ.) 600:1 (typ.)

At the contrast ratio

≥

10:1

• Horizontal: Right side 80° (typ.), Left side 80° (typ.)

• Vertical: Up side 80° (typ.), Down side 60° (typ.)

At DPS= Low or open: normal scan

• Viewing direction without image reversal: up side (12 o'clock)

• Viewing direction with contrast peak: down side (6 o'clock)

• Viewing angle with optimum grayscale (γ=2.2): normal axis

Clear + Antireflection (AR) 3H (min.) [by JIS K5400]

Color gamut

Response time

Luminance

At LCD panel center

(36) % (typ.) [against NTSC color space]

Ton+Toff (10%

←→

90%)

25 ms (typ.)

At IL= 10 mA

800 cd/m

(typ.)

LVDS 1port

Signal system

(Receiver: THC63LVDF84B, THine Electronics Inc. or equivalent) 8bit/6bit digital signals for data of RGB colors, Dot clock (CLK), Data enable (DE)

Power supply voltage

LCD panel signal processing board: 3.3V LED backlight type:

Backlight

Replaceable part

• LED holder set: Type No. 65LHS13

Power consumption

At IL= 10 mA, Checkered flag pattern

TBD W (typ.)

PRELIMINARY DATA SHEET DOD-PP-0321 (2nd edition)

3. BLOCK DIAGRAM

Host

D0+

D0D1+

D1D2+

D2D3+

D3-

CLK+

CLK-

MSL DPS FRC

GND

Note1 Note2

VCC

Note1 Note2

Anode1-6

Cathode1-6

Note1: Relations between GND (Signal ground), FG (Frame ground) in the LCD module are as

follows.

GND - FG Connected

Note2: GND and FG must be conn ected to customer equipment’s ground, and it is recommended that

these grounds are connected together in customer equipment.

LCD module (Product)

100Ω

Controller with receiver for LVDS

100Ω

Power supply

for gradation

47kΩ

50kΩ

DC/DC

Fuse

LCD panel signal processing board

converter

6 6

NL6448BC20-21C

H-driver

1,920 lines

LCD panel

H: 640 × 3 (R, G, B) V: 480

480 lines

V-driver

Backlight Note3

PRELIMINARY DATA SHEET DOD-PP-0321 (2nd edition)

NL6448BC20-21C

Note3: Backlight in detail

Anode 1

Cathode 1

Anode 2

Cathode 2

Anode 3

Cathode 3

Anode 4

Cathode 4

Anode 5

Cathode 5

Anode 6

Cathode 6

Backlight

PRELIMINARY DATA SHEET DOD-PP-0321 (2nd edition)

4. DETAILED SPECIFICATIONS

4.1 MECHANICAL SPECIFICATIONS

Parameter Specification Unit

NL6448BC20-21C

Module size Display area

Weight TBD (typ.), TBD (max.) g

Note1: See "7. OUTLINE DRAWINGS".

4.2 ABSOLUTE MAXIMUM RATINGS

Parameter Symbol Rating Unit Remarks

Power supply

voltage

Input voltage

for signals

Backlight

Operating temperature

LCD panel signal processing

Display signals

Function signal

Power dissipation PD 1.1 W per one circuit Forward current IL Note4 mA Pulse forward current IFP Note5 mA

Storage temperature Tst -30 to +80

Relative humidity

Note8

Absolute humidity

Note8

Note1: Display signals are D0+/-, D1+/-, D2+/-, D3+/- and CLK+/-.

Note2: Fu nction signal 1 is DPS, FRC.

Note3: If the product surface (polarizer) is exposed to an ultraviolet ray, the polarizer may discolor

(Surface treatment may be damaged.). Use a filter to protect the polarizer from the ultraviolet ray.

153.0 ± 0.5 (W) × 118.0 ± 0.5 (H) × 9 (typ)

132.48 (H) × 99.36 (V)

board

Note1

Note2

Front surface TopF -20 to +70

Rear surface TopR -20 to +70

VCC -0.3 to +4.0 V

-0.3 to VCC+0.3 V

≤ 95 ≤ 85 ≤ 55 ≤ 36

≤ 70

Note9

Note1 mm Note1 mm

per one circuit

°C °C °C

% % % %

g/m

Note6 Note7

Ta ≤ 40°C

40°C <Ta≤ 50°C 50°C <Ta≤ 60°C 60°C <Ta≤ 70°C

Ta> 70°C

PRELIMINARY DATA SHEET DOD-PP-0321 (2nd edition)

Note4: Forward current Note5: Pulse forward current

20 18 16 14 12 10

8 6 4 2 0

20 40 60 80 100

Allowable forward current IL (mA)

Operating temperature (rear surface)Ta [°C]

Note6: Measured at center of LCD panel surface (including self-heat) Note7: Measured at center of LCD module's rear shield surface (including self-heat) Note8: No condensation Note9: Water amount at Ta = 70°C and RH = 36%

4.3 ELECTRICAL CHARACTERISTICS

4.3.1 LCD panel signal processing board

NL6448BC20-21C

(mA)

Allowable pulse forward current IFP

Duty ratio (%)

(Ta= 25°C)

Parameter Symbol min. typ. max. Unit Remarks Power supply voltage VCC 3.0 3.3 3.6 V Power supply current ICC -

Permissible ripple voltage VRP - - 100 mVp-p for VCC

Differential input threshold voltage for LVDS receiver

Terminating resistance RT - 100 -

Input voltage for DPS, FRC and MSL signals

Input current for FRC and MSL signal

High VTH - - +100 mV

Low VTL -100 - - mV

High VFH 0.7VCC - VCC V

VFL 0 - 0.3VCC V

Low

High IFH - - 300

IFL -300 - -

Low

TBD

Note1

TBD

Note2

mA at VCC = 3.3V

at VCM=1.2V

Note3

μA μA

CMOS level

Note1: Checkered flag pattern [by EIAJ ED-2522] Note2: Pattern for maximum current Note3: Common mode voltage for LVDS receiver

PRELIMINARY DATA SHEET DOD-PP-0321 (2nd edition)

4.3.2 Backlight

Parameter Symbol min. typ. max. Unit Remarks

Forward current IL - 10 TBD mA Note3

Forward Voltage VL - 26.82 TBD V at IL= 10 mA

Note1: Please drive with constant current . Note2: The

Luminance uniformity may be changed depending on the current variation between 6 circuits.

It is recommended that the current value difference between each circuit is less than 5%.

Note3: See "4.2 ABSOLUTE MAXIMUM RATINGS Note4".

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

NL6448BC20-21C

Ripple voltage Note1

(Measure at input terminal of power supply)

(Ta=25°C)

Unit

VCC 3.3V

≤ 100

Note1: The permissible ripple voltage includes spike noise.

4.3.4 Fuse

Parameter

VCC

Type Supplier

TBD TBD

Fuse

Rating Fusing current Remarks

TBD

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

Note1

PRELIMINARY DATA SHEET DOD-PP-0321 (2nd edition)

+ 23 hidden pages

NEC NL6448BC20-21C Technical data

INTRODUCTION

CONTENTS

1. OUTLINE

1.1 STRUCTURE AND PRINCIPLE

1.2 APPLICATION

1.3 FEATURES

2. GENERAL SPECIFICATIONS

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

4.3.3 Power supply voltage ripple

4.3.4 Fuse