NL6448BC26-01.pdf

TFT COLOR LCD MODULE

NL6448BC26-01

21.4cm (8.4 Type)

VGA

DATA SHEET

(5th edition)

All information is subject to change without notice.

Please confirm the delivery specification before starting

to design your system.

Document Number: EN0544EJ5V0DS00 (5th edition)

Published date: September 2002 N CP(N)

NEC Corporation

NL6448BC26-01

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.

DATA SHEET EN0544EJ5V0DS00

NL6448BC26-01

CONTENTS

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

1. OUTLINE ................................................................................................................................................... 5

1.1 STRUCTURE AND PRINCIPLE .......................................................................................................... 5

1.2 APPLICATIONS .................................................................................................................................... 5

1.3 FEATURES ............................................................................................................................................ 5

2. GENERAL SPECIFICATIONS................................................................................................................ 6

3. BLOCK DIAGRAM .................................................................................................................................. 7

4. DETAILED SPECIFICATIONS............................................................................................................... 9

4.1 MECHANICAL SPECIFICATIONS ..................................................................................................... 9

4.2 ABSOLUTE MAXIMUM RATINGS....................................................................................................9

4.3 ELECTRICAL CHARACTERISTICS ................................................................................................ 10

4.3.1 Driving for LCD panel signal processing board ......................................................................... 10

4.3.2 Working for backlight lamp......................................................................................................... 10

4.3.3 Power supply voltage ripple .........................................................................................................11

4.3.4 Fuse ..............................................................................................................................................11

4.4 POWER SUPPLY VOLTAGE SEQUENCE........................................................................................ 12

4.4.1 Sequence for LCD panel signal processing board....................................................................... 12

4.4.2 Sequence for backlight inverter (Option) .................................................................................... 12

4.5 CONNECTIONS AND FUNCTIONS FOR INTERFACE PINS ........................................................ 13

4.5.1 LCD panel signal processing board ............................................................................................ 13

4.5.2 Backlight lamp ............................................................................................................................ 14

4.5.3 Positions of plugs and a socket ................................................................................................... 14

4.6 DISPLAY COLORS AND INPUT DATA SIGNALS.......................................................................... 15

4.7 DISPLAY POSITIONS ........................................................................................................................ 16

4.8 SCANNING DIRECTIONS ................................................................................................................ 16

4.9 INPUT SIGNAL TIMINGS FOR LCD PANEL SIGNAL PROCESSING BOARD .......................... 17

4.9.1 Outline of input signal timings.................................................................................................... 17

4.9.2 Detailed input signal timing chart for fixed mode....................................................................... 18

4.9.3 Detailed input signal timing chart for DE mode ......................................................................... 19

4.9.4 Timing characteristics ................................................................................................................. 20

4.10 OPTICS .............................................................................................................................................. 21

4.10.1 Optical characteristics ............................................................................................................... 21

4.10.2 Definition of contrast ratio ........................................................................................................ 22

4.10.3 Definition of luminance uniformity........................................................................................... 22

4.10.4 Definition of response times...................................................................................................... 22

4.10.5 Definition of viewing angles ..................................................................................................... 22

DATA SHEET EN0544EJ5V0DS00

NL6448BC26-01

CONTENTS

5. RELIABILITY TESTS ............................................................................................................................ 23

6. PRECAUTIONS....................................................................................................................................... 24

6.1 MEANING OF CAUTION SIGNS ..................................................................................................... 24

6.2 CAUTIONS ......................................................................................................................................... 24

6.3 ATTENTIONS...................................................................................................................................... 24

6.3.1 Handling of the product............................................................................................................... 24

6.3.2 Environment ................................................................................................................................ 24

6.3.3 Characteristics ............................................................................................................................. 25

6.3.4 Other............................................................................................................................................ 25

7. OUTLINE DRAWINGS .......................................................................................................................... 26

7.1 FRONT VIEW ..................................................................................................................................... 26

7.2 REAR VIEW........................................................................................................................................ 27

DATA SHEET EN0544EJ5V0DS00

NL6448BC26-01

1. OUTLINE

1.1 STRUCTURE AND PRINCIPLE

NL6448BC26-01 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 unit.

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

•

Wide viewing angle

•

6-bit digital RGB signals

•

Reversible-scan direction

•

Edge light type

•

Replaceable lamp for backlight unit (Inverter less)

DATA SHEET EN0544EJ5V0DS00

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