NL6448CC33-30.pdf

PRELIMINARY DATA SHEET

TFT COLOR LCD MODULE

NL6448CC33-30

26 cm (10.4 inches), 640

480 pixels, 262,144 colors,

Backlight-less

Wide temperature range

DESCRIPTION

NL6448CC33-30 is a TFT(Thin Film Transistor) active matrix color liquid crystal display (LCD) comprising

amorphous silicon TFT attached to each signal electrode and a driving circuit.

The 26 cm (10.4 inches) diagonal display area contains 640

480 pixels and can display 262,144 colors

simultaneously.

NL6448CC33-30 is a backlight-less model. Therefore, it is easy for customers to make own backlight and to get

necessary brightness.

FEATURES

•Backlight-less

•High contrast, wide viewing angle and wide color gamut

•Smooth polarizer surface

•6-bit digital RGB interface

•Data enable (DE) function

•Variable gamma control

•Reverse scan capability

•Wide temperature range

APPLICATIONS

•Display terminals for control system

•Monitors for process controller

•Industrial PC

The information in this document is subject to change without notice.

Document No. MA990224 (Version 2)

Date Published February 1999 P

Printed in USA

NEC Electronics Inc,1999

NL6448CC33-30

STRUCTURE AND FUNCTIONS

A color TFT (thin film transistor) LCD module is comprised of a TFT liquid crystal panel structure, LSIs for driving

the TFT array, and a backlight assembly. The TFT panel structure is created by sandwiching liquid crystal material

in the narrow gap between a TFT array glass substrate and a color filter glass substrate.

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 a 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

Digital

signal

processor

Level

shift

1920 lines

TFT LCD panel

H : 640 ´

3 (R, G, B)

CLK

Hsync

Vsync

V : 480

MODE

HRV

VRV

LCD timing

controller

V CC

Power

supply

circuit

LSls

Drivers

OUTLINE OF CHARACTERISTICS (at room temperature)

Display area

211.2 (H)

158.4 (V) mm

Drive system

a-Si TFT active matrix

Display colors

262,144 colors

Number of pixels

640

480 pixels

Pixel arrangement

RGB vertical stripe

Pixel pitch

0.33 (H)

0.33 (V) mm

Module size

264.0 (H)

187.8 (V)

8.8 TYP. (D) mm

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]

Backlight Backlight-less

Power consumption

1.0 W (TYP. at 3.3V)

Note : Measuring light conditions

Lamp Cold Cathode Fluorescent Lamp

Chromaticity coordinates x=0.320, y=0.325 typical

Luminance 1500cd/m 2

g 1

Weight 300 g (TYP.)

Contrast ratio 150 : 1 (TYP.)

Color gamut 43% (TYP., center, to NTSC)

Response time 15 ms (TYP.), white to black

Transmittance 6.3% (TYP.) Note

NL6448CC33-30

GENERAL SPECIFICATIONS

Item

Specification

Unit

Module size

264.0 ± 0.5 (H) ´

187.8 ± 0.5 (V) ´

8.8. (D)TYP.

Display area

211.2 (H)

158.4 (V)

Number of dots

640 ´

3 (H) ´

480 (V)

dot

Number of pixels

640 (H) ´

480 (V)

pixel

Dot pitch

0.11 (H)

0.33 (V)

Pixel pitch

0.33 (H)

0.33 (V)

Pixel arrangement

RGB (Red, Green, Blue) vertical stripe

–

Display colors

262,144

color

Weight

Module: 330 (MAX.)

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol

Rating

Unit

Remarks

Supply voltage

V CC

–0.3 to 6.5

Ta = 25°C

V I – V CC < 3.0

Input voltage

V I

–0.3 to 6.5

Storage temp.

T ST

–30 to 85

°C

Note 4

Operating temp.

T OP1

-25 to 85

°C

Non-destructive Note 4

T op2

-10 to 70

°C

Screen image should be recognized.

Note 2

95% relative humidity

–

Ta £

40°C

Humidity

85% relative humidity

–

40 < Ta

50°C

(T a = 50°C, 85% relative

humidity) Absolute humidity.

–

Ta > 50°C

Incident light intensity II < 20,000 cd/m at CF side,

Ta = 25°C

Notes 1, 4

Environment light intensity < 20,000 lx at TFT side, Ta = 25°C

–

Notes 1, 5, 6

Gamma resistor R 3 k Max Should not be used by "Open"

Notes 1. Measured at the center of display area (Front side)

2. Guarantee the optical characteristics at 25 degree C only.

3. No condensation

4. In case of that the module is exposed at high temperature in operation or storage, the polarizer film

may peel off from the panel in the edge of the display area.

It is recommended not to use the module under such environment continuously. It is estimated that

the polarizer may peel off after the operation at 85 degree C with 120 hours in accumulation.

5. Incident light (Backlight) should be located from CF(Color Filter) side only.

6. Avoid to use the module in the environment which the strong light exposes the module surface directly.

NL6448CC33-30

ELECTRICAL CHARACTERISTICS

(1)Logic, LCD driving

T a = 25°C

Parameter

Symbol

MIN.

TYP.

MAX.

Unit

Remarks

Supply voltage

V CC

3.0

(4.75)

3.3

(5.0)

3.6

(5.25)

V CC = 3.3 V

(V CC = 5.0 V)

Logic input Low voltage

V IL

–

V CC

0.3

Logic input High voltage

V IH

V CC

0.7

–

V CC

Supply current

I CC

–

325 Note

(250)

400

(300)

V CC = 3.3 V

(V CC = 5.0 V)

Note Checkered flag pattern (in EIAJ ED-2522)

SUPPLY VOLTAGE SEQUENCE

V CC

3.0 V (4.75 V)

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

3.0 V (4.75 V)

Notes1. Signals:CLK, Hsync, Vsync, DE,

DATA (R0-R5, G0-G5, B0-B5)

2. The supply voltage for input signals

should be the same as V CC .

3. Apply V DD B within the LCD operation

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.

4. When the power is off, please keep

whole signals low level or high

impedance.

Signals Notes 1,2,3

VALID

2t V < t 0 < t

OFF

Backlight Note 4

Time

NL6448CC33-30

INTERFACE AND PIN CONNECTION

(1)Interface signals, power supply

Module side connector

Mating connector

CN1 ···IL-Z-10PL1-SMTY

IL-Z-10S-S125C3

CN2 ···IL-Z-13PL1-SMTY

IL-Z-103-S125C3

CN3 ···IL-Z-11PL1-SMTY

IL-Z-11S-S125C3

Supplier: Japan Aviation Electronics Industry Limited (JAE)

Pin No.

Symbol

Function

Pin No.

Symbol

Function

GND

Ground

GND

Ground

CLK

Dot clock

Blue data (LSB)

Hsync

Horizontal sync.

Blue data

Vsync

Vertical sync.

Blue data

GND

Ground

Blue data

Red data (LSB)

Blue data

Red data

Blue data (MSB)

Red data

GND

Ground

Red data

Data enable

Red data

V CC

Power supply

Red data (MSB)

V CC

Power supply

GND

Ground

MODE Input signal mode Note 1

Green data (LSB)

31 HRV Horizontal scanning direction

Green data

32 VRV Vertical scanning direction

Green data

33 Gamma setting

g 1

Green data

34 Gamma setting

Green data

LSB: Least Significant Bit

MSB: Most Significant Bit

Green data (MSB)

Notes 1. MODE setting

L or Open = DE mode, H = Fixed timing mode

2. HRV setting

L or Open = Normal horizontal scanning (Pull down resistor 47 k ohm), H = Reversed horizontal scanning

3. VRV setting

L or Open = Normal vertical scanning (Pull down resistor 47 k ohm), H = Reversed vertical scanning

HRV = L HRV = H HRV = L HRV = H

VRV = L VRV = L VRV = H VRV = H

D (0, 0)

D (639, 0)

D (0, 0)

D (639, 0)

D (0, 0)

D (639, 0)

D (0, 0)

D (639, 0)

D (0, 479)

D (639, 479)

D (0, 479)

D (639, 479)

D (0, 479)

D (639, 479)

D (0, 479)

D (639, 479)

4. Gamma correction

Mating variable resistor : 2.2 k W ±

5. GND is connected to the frame of LCD module.

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