NEC NL3224AC35-10 Datasheet

DATA SHEET

TFT COLOR LCD MODULE

NL3224AC35-10

14 cm (5.5 inches), 320 × 240 Pixels, Full color

Incorporated backlight with inverter

NL3224AC35-10 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. NL3224AC35-10 has a built-in backlight.

The 14 cm diagonal display area contains 320 × 240 pixels and can display full-color (more than 16 million colors)

simultaneously.

FEA TURES

• High luminance

• Analog RGB interface

• Reversible horizontal and vertical scanning

• Incorporated edge type backlight with Inverter

• Smooth polarizer surface

APPLICATIONS

• TV monitors

• Video games

• Monitors for process controller

Document No. EN0440EJ1V0DS00
Date Published May 1999 P
Printed in Japan

©

1999

NL3224AC35-10

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. After the driver LSIs are
connected to the panel, the backlight assembly is attached to the backside of the 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.

OUTLINE OF CHARACTERISTICS (at room temperature)

Display area 111.36 (H) × 83.52 (V) mm

Drive system a-Si TFT active matrix

Display colors Full-color

Number of pixels 320 × 240

Pixel arrangement RGB vertical stripe

Pixel pitch 0.348 (H) × 0.348 (V) mm

Module size 134.0 (H) × 110.0 (V) × 23.0 max. (D) mm

Weight 330 g (typ.)

Contrast ratio 85:1 (typ.)

Viewing angle (more than the contrast ratio of 10:1)

• Horizontal: 50° (typ. left side, right side)

• Vertical: 25° (typ. up side), 25° (typ. down side)

Designed viewing direction

• wider viewing angle with contrast ratio : down side (6 o’clock)

• wider viewing angle without image reversal : up side (2 and 10 o’clock)

• optimum grayscale (γ = 2.2) : perpendicular
Polarizer Pencil-hardness 2H (min. at JIS K-5400)
Color gamut 50 % (typ. center, to NTSC)
Response time 16 ms (typ.), “white” to “black”

2

Luminance 250 cd/m
Signal system Analog RGB signals, synchronous signals (Hsync and Vsync), CLK
Supply voltage 12 V, 12 V (Logic/LCD driving, Backlight)
Backlight Edge light type: one cold cathode fluorescent lamp
Power consumption 6.5 W (typ.)

(typ.)

2

Data Sheet EN0440EJ1V0DS00

BLOCK DIAGRAM

I/F LCD module

NL3224AC35-10

HS
VS

CLK

V

(+12V)

VDCB

(+12V)

BPLS

GNDB

R
G
B

DC

DC

clamp

correction

DC/DC

Converter

Gamma

AMP

clamp-puls

IC

S

Driver

DC

shift

COM

signal

controller

V-Driver

+

Inverter

H-Driver

960lines

LCD panel

240lines

H:320 × 3 (R, G, B)
V:240

Backlight

GNDA
GNDD

Note Frame is connected with GNDB in the LCD module.
GNDA should be separated from GNDD to avoid display noise with I/F
connection.

Data Sheet EN0440EJ1V0DS00

3

NL3224AC35-10

GENERAL SPECIFICATIONS

Item Specifications Unit
Module size 134.0±0.5 (H) × 110.0±0.5 (V) × 23.0 max. (D) mm
Display area 111.36 (H) × 83.52 (V) mm
Number of dots 320 × 3 (H) × 240 (V) dot
Dot pitch 0.116 (H) × 0.348 (V) mm
Pixel pitch 0.348 (H) × 0.348 (V) mm
Pixel arrangement RGB (Red, Green, Blue) vertical stripe –
Display colors Full-color color
Weight 335 (max.) g

ABSOLUTE MAXIMUM RATINGS

Parameter Symbol Ratings Unit Remarks

Supply voltage VDC –0.5 to 16.0 V

VDCB –0.5 to 16.0 V
Logic input voltage VIN1 –0.5 to 5.5 V Ta = –20 to 65 °C
Analog RGB input signal VIN2 –2.5 to 2.5 V
Storage temp. TST –20 to 65 °C–
Operating temp. TOP 0 to 65 °C Module surface*
Humidity (no condensation) ≤ 90 % relative humidity Ta ≤ 60 °C

Ta = –20 to 65 °C

VDC = 12 V

* measured at the center of the display area

ELECTRICAL CHARACTERISTICS

(1) Power supply, logic input Ta = 25 °C

Parameter Symbol min. typ. max. Unit Remarks

Supply voltage VDC 11.0 12.0 13.0 V For Logic and LCD driving

VDDB 11.0 12.0 13.0 V For backlight
Logic input “L” voltage VIL 0 – 0.9 V
Logic input “H” voltage VIH 3.15 – 5.0 V
Supply current IDC – 145 200 mA At pixel-checkered pattern

(VDC = 12.0 V)

IDCB – 395 450 mA Maximum luminance

(VDCB = 12.0 V)

(2) Video signal (R, G, B) input Ta = 25 °C

Item min. typ. max. Unit Remarks
Maximum amplitude (white - back) 0 – 0.7 Vp-p
DC input level (black) –1.0 – +1.0 V

–

–

4

Data Sheet EN0440EJ1V0DS00

SUPPLY VOLTAGE SEQUENCE

NL3224AC35-10

Logic signals

Voltage

VDC, VDCB

20ms≤

Note

0ms<

Note Synchronous signal, Control signals, CLK

CAUTION

Wrong power sequence may damage to the module.

a) Logic signals (synchronous signals and control signals) should be “0” voltage (V), when V

than 0.3 V is input to signal lines, the internal circuit will be damaged.

b) The backlight power supply (V

DCB) is not related to the power supply sequence. However, unstable data will

be displayed when the backlight power is turned ON with no logic signals.

d) Analog RGB input are independent from this power supply sequence.

Time

DC is not input. If higher

f) Apply V

DCB 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.

Data Sheet EN0440EJ1V0DS00

5

INTERFACE PIN CONNECTION

Connector (CN1)

Part no. : 52610-2417
Supplier : Molex
Adaptable cable : SUMI-CARD 1.0 mm pitch 24 wick 80 °C quality
Supplier : SUMITOMO ELECTRIC INDUSTRIES, LTD.

Pin No. Symbol Pin No. Symbol Pin No. Symbol

1 GNDD 9 GNDD 17 GNDD
2 ECLK 10 U/D 18 GNDA
3 GNDD 11 GNDD 19 R
4HS12VDC 20 GNDA
5VS13VDCB21 G
6 BPLS 14 VDCB 22 GNDA
7 GNDD 15 GNDB 23 B
8 GNDD 16 GNDB 24 GNDA

NL3224AC35-10

<Connector location>

CN1

24

Upper side

1

<Rear view>

Lower side

6

Data Sheet EN0440EJ1V0DS00