NEC NL6448AC33-18A Datasheet

DATA SHEET

TFT COLOR LCD MODULE

NL6448AC33-18A

26 cm (10.4 inches), 640 × 480 pixels, 262144 colors,

Luminance adjustable, Non anti-glare panel

DESCRIPTION

NL6448AC33-18A is a TFT (thin film transistor) active matrix color liquid crystal display (LCD) comprising amorphous silicon TFT attached to each signal electrode, a driving circuit and a backlight. NL6448AC33-18A has a built-in backlight. Backlight includes long life lamps, which are replaceable.

The 26 cm diagonal display area contains 640 × 480 pixels and can display 262144 colors simultaneously.

NL6448AC33-18A is suitable for factory automation use, because luminance is higher, and viewing direction is selectable by switching display scan direction.

FEATURES

• Reverse function (user set up)

• 6-bit digital RGB signals

• 3.3 V operation (5.0 V available)

• Data enable function (DE/Fixed mode select: user set up)

• Smooth polarizer surface (No antiglare treatment)

• Incorporated edge type backlight (Two lamps, with inverter, bright/dark selectable)

• Backlight tube replaceable (refer to the tube replace manual for NL6448AC33-18A)

APPLICATIONS

• Industrial PC

• Display terminals for control system

• Monitors for process controller

Document No. EN0497EJ1V0DS00 Date Published February 2000 P Printed in Japan

The information in this document is subject to change without notice. Please confirm with the delivery specification before starting to design the system.

2000

NL6448AC33-18A

STRUCTURE AND FUNCTIONS

A TFT color LCD module comprises a TFT LCD panel, LSIs for driving liquid crystal, and the backlight. The TFT LCD panel is composed of a TFT array glass substrate superimposed on a color filter glass substrate with liquid crystal filled in the narrow gap between two substrates. The backlight apparatus is located on the backside of the LCD panel.

RGB (red, green, blue) data signals from a source system is modulated into a form suitable for active matrix addressing by the onboard signal processor and sent to the driver LSIs which in turn addresses the individual TFT cells.

Acting as an electro-optical switch, each TFT cell regulates light transmission from the backlight assembly when activated by the data source. By regulating the amount of light passing through the array of red, green, and blue dots, color images are created with clarity.

BLOCK DIAGRAM

H-driver

R0–R5 G0–G5 B0–B5

CLK Hsync Vsync

DDB

BRTHL BRTC BRTH

BRTL

GND (SG) Frame GNDB

Digital signal processor

LCD timing controller

SW5

DE/Fixed mode select

Power supply circuit

Inverter

Level shift

Scan select SW1 - SW 4

LSls Drivers

V-driver

1920 lines

TFT LCD panel

H : 640 × 3 (R, G, B) V : 480

480 lines

Backlight

Note 1. Frame and GNDB (Backlight ground) are contacted at the lamp holder.

Data Sheet EN0497EJ1V0DS00

NL6448AC33-18A

OUTLINE OF CHARACTERISTICS (at room temperature)

Display area 211.2 (H) × 158.4 (V) mm Drive system a-Si TFT active matrix Display colors 262144 colors Number of pixels 640 × 480 pixels Pixel arrangement RGB vertical stripe Pixel pitch 0.33 (H) × 0.33 (V) mm Module size 243.0 (H) × 185.1 (V) × 10.5 typ. (D) mm Inverter size 25.0 (H) × 105.0 (V) × 10.2 max. (D) mm Weight 470 g (typ.) + 15 g (typ., inverter) Contrast ratio 150:1 (typ.) Viewing angle (more than the contrast ratio of 10:1)

Horizontal : 45˚ (typ. left side, right side) Vertical : 30˚ (typ. up side), 20˚ (typ. down side)

Designed viewing direction • Wider viewing angle with contrast ratio

: up side (12 o’clock, normal scan) : down side (6 o’clock, reverse scan)

• Wider viewing angle without image reversal : down side (6 o’clock, normal scan) : up side (12 o’clock, reverse scan)

• Optimum grayscale (γ = 2.2): perpendicular

Color gamut 56 % (typ. center, to NTSC) Response time 40 ms (max.), “white 100%” to “black 10%”

Luminance 200 cd/m Signal system 6-bit digital signals for each of RGB primary colors, synchronous signals

(Hsync, Vsync), dot clock (CLK) Supply voltages 3.3 V [5.0 V] (Logic, LCD driving), 12 V (Backlight) Backlight Edge light type: two cold cathode fluorescent lamp (cold cathode type) Power consumption 6.8 W (typ. at 3.3 V, 12.0 V)

(typ.)

GENERAL SPECIFICATIONS

Item Specification Unit Module size 243.0 ± 0.5 (H) × 185.1 ± 0.5 (V) × 11.0 max. (D) mm Invertor size 25.0 ± 0.5 (H) × 100 Display area 211.2 (H) × 158.4 (V) mm Number of pixels 640 (H) × 480 (V) pixel Dot pitch 0.11 (H) × 0.33 (V) mm Pixel pitch 0.33 (H) × 0.33 (V) mm Pixel arrangement RGB (Red, Green, Blue) vertical stripe Display colors 262144 color Weight Module: 480 (max.) + Inverter: 20 (max.) g

+0.7

(V) × 10.2 max. (D) mm

–0.3

Data Sheet EN0497EJ1V0DS00

NL6448AC33-18A

ABSOLUTE MAXIMUM RATINGS

Parameter Symbol Rating Unit Remarks Supply voltage VCC –0.3 to 6.5 V Ta = 25 ˚C Input voltage VI –0.3 to 6.5 V VI – VCC < 3.0 Storage temp. TST –20 to 60 ˚C Operating temp. TOP 0 to 50 ˚C Module surface Note 1 Humidity RH ≤ 95 % relative humidity Ta ≤ 40 ˚C No condensation

≤ 85 % relative humidity

Absolute humidity shall not Ta > 50 ˚C exceed Ta = 50 ˚C, 85 % relative humidity level.

Note 1. Measured at the display area

ELECTRICAL CHARACTERISTICS

(1) Logic, LCD driving

Parameter Symbol Min. Typ. Max. Unit Remarks Supply voltage VCC 3.0 3.3 3.6 V VCC = 3.3 V

(4.75) (5.0) (5.25) (VCC = 5.0 V) Logic input “L” voltage VIL 0–VCC × 0.3 V Logic input “H” voltage VIH VCC × 0.7 – VCC V Supply current ICC – *1 300 400 mA VCC = 3.3 V

– (200) (300) mA (VCC = 5.0 V)

40 < Ta ≤ 50 ˚C

Ta = 25 ˚C

CMOS level

*1. Checker flag pattern (in EIAJ ED-2522)

(2) Backlight

Parameter Symbol Min. Typ. Max. Unit Remarks Supply voltage VDDB 11.4 12.0 12.6 V – Supply current IDDB – 480 550 mA 200cd/m2 ( typ.)

SUPPLY VOLTAGE SEQUENCE

Note 1. The supply voltage for input signals

3.0 (4.75 V) 3.0 (4.75 V)

Signals

Power-on Power-off

0s<t<35 ms 0s<t<35 ms

Note 2. Apply VDDB within the LCD operation

Note 3. When the power is off, please keep

should be same as V

period. When the backlight turns on before LCD operation or the LCD operation turns off before the backlight turns off, the display may momentarily become white.

whole signals (Hsync, Vsync, CLK, data) low level or high impedance.

Ta = 25 ˚C

CC.

Data Sheet EN0497EJ1V0DS00

INTERFACE PIN CONNECTION

(1) Interface signals, power supply

Module side connector Mating connector CN1 ··· DF9C-31P-1V (No. 1 to 31) DF9-31S-1V or DF9M-31S-1R

Supplier: HIROSE ELECTRIC CO., LTD.

NL6448AC33-18A

Pin No. Symbol Function

1 GND Ground 2 CLK Dot clock 3 Hsync Horizontal sync. 4 Vsync Vertical sync. 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) 14 G1 Green data 15 G2 Green data 16 G3 Green data 17 G4 Green data 18 G5 Green data (MSB)

Pin No. Symbol Function

19 GND Ground 20 B0 Blue data (LSB) 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 Data enable 28 VCC Power supply 29 VCC Power supply 30 N. C. Non-connection 31 N. C. Non-connection

LSB : Least Significant Bit MSB : Most Significant Bit

Note 1. VCC: All VCC terminals should be connected to 3.3 V or 5.0 V. Note 2. DE/Fixed mode select is set by SW5 on the rear side.

• DE mode (factory set) SW5 SW1 SW2 SW3 SW4

• Fixed mode SW5 SW1 SW2 SW3 SW4

out of relation

DE/Fixed mode set up switch

Note 3. GND is connected to the frame of the LCD module.

out of relation

DE/Fixed mode set up switch

Data Sheet EN0497EJ1V0DS00

(2) Backlight

• Inverter side connector 1 Mating connector 1 CN2 ··· LZ-5P-SL-SMT LZ-5S-SC3 Supplier: Japan Aviation Electronics Industry Limited (JAE)

Pin No. Symbol Function

1VDDB Backlight power supply 2VDDB Backlight power supply 3 GNDB Backlight ground 4 GNDB Backlight ground 5 BRTHL Backlight luminance select Note 1

Note 1. High luminance (100 %) … BRTHL = +5 V or OPEN

Low luminance (60 %) … BRTHL = GND

• Inverter side connector 2 Mating connector 2 CN3 ··· IL-Z-3PL-SMTY IL-Z-3S-S125C3 Supplier: Japan Aviation Electronics Industry Limited (JAE)

NL6448AC33-18A

Pin No. Symbol Function

1 BRTC Backlight ON/OFF signal Note 1 2 BRTH Luminance control input Note 2 3 BRTL Luminance control input Note 2

Note 1. TTL level

Backlight ON … BRTC = H or Open Backlight OFF … BRTC = L

Note 2. <1> A way of luminance control by a variable resistor

This way works when BRTHL (No. 5 pin) of CN3 is opened.

Mating variable resistor : 10 KΩ ± 5 % Minimum luminance (50 %) : R = 0 Ω

BRTHBRTL

Maximum luminance (100 %): R = 10 KΩ

<2> A way of luminance control by a voltage

This way works when BRTHL and BRTL are opend. The range of input voltage between BRTH and GNDB is as follows. Minimum luminance (50 %) : 2.5 V Maximum luminance (100 %) : ≤ 1.2 V

<3> A way of luminace control by a current

This module can not use the luminance control by a current, because GNDB is in contact with the frame.

Data Sheet EN0497EJ1V0DS00

• Lamp side connector Mating connector CN2 ··· BHR-03VS-1 SM02 (8.0) B-BHS-TB Supplier: J. S. T TRADING COMPANY, LTD.

Pin No. Symbol Function

1 GNDB Backlight ground 2VH High voltage terminal 3VH High voltage terminal

Upper side

CN2

NL6448AC33-18A

CN1

CN3

1 2 3

Lower side

1 2 3

CN1

1 2 3 4 5

· 30

Note 1. CN2 is not connected each other at shipment. It should be connected, when LCD is operated.

Data Sheet EN0497EJ1V0DS00

DISPLAY COLORS vs. INPUT DATA SIGNALS

NL6448AC33-18A

Display colors

Black 000000 000000 000000

Blue 000000 000000 111111

Red 111111 000000 000000

Basic colors Magenta 111111 000000 111111

Green 000000 111111 000000

Cyan 000000 111111 111111

Yellow 111111 111111 000000

White 111111 111111 111111 Black 000000 000000 000000

dark 000010 000000 000000

Red grayscale | | |

Green grayscale | | |

Blue grayscale | | |

↑ ↓ |||

bright 111101 000000 000000

Red 111111 000000 000000

Black 000000 000000 000000

dark 000000 000010 000000

↑ ↓ |||

bright 000000 111101 000000

Green 000000 111111 000000

Black 000000 000000 000000

dark 000000 000000 000010

↑ ↓ |||

bright 000000 000000 111101

Blue 000000 000000 111111

R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1 B0

000001 000000 000000

|||

111110 000000 000000

000000 000001 000000

|||

000000 111110 000000

000000 000000 000001

|||

000000 000000 111110

Data signal (0: Low level, 1: High level)

Note Colors are developed in combination with 6 bit signals (64 steps in grayscale) of each primary red, green,

and blue color. This process can result in up to 262144 (64 × 64 × 64) colors.

Data Sheet EN0497EJ1V0DS00

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