NEC NL3224BC35-22 User Manual

TFT COLOR LCD MODULE

NL3224BC35-22

14cm (5.5 Type)

QVGA

DATA SHEET

DOD-PP-0301 (6th edition)

This DATA SHEET is updated document from

DOD-PP-0065(5).

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

Document Number: DOD-PP-0301 (6th edition)	1	© NEC LCD Technologies, Ltd.
Published date: July 2007 CP(N)		2005-2007 All rights reserved.

NL3224BC35-22

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.

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CONTENTS
INTRODUCTION ..........................................................................................................................................	2
1. OUTLINE....................................................................................................................................................	4
1.1 STRUCTURE AND PRINCIPLE...........................................................................................................	4
1.2 APPLICATION.......................................................................................................................................	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 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 LCD panel signal processing board .............................................................................................	12
4.4.2 Inverter.........................................................................................................................................	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
4.8.1 QVGA mode ................................................................................................................................	16
4.8.2 VGA mode ...................................................................................................................................	17
4.9 INPUT SIGNAL TIMINGS..................................................................................................................	18
4.9.1 QVGA mode ................................................................................................................................	18
4.9.2 VGA mode ...................................................................................................................................	24
4.10 OPTICS...............................................................................................................................................	30
4.10.1 Optical characteristics................................................................................................................	30
4.10.2 Definition of contrast ratio.........................................................................................................	31
4.10.3 Definition of luminance uniformity ...........................................................................................	31
4.10.4 Definition of response times ......................................................................................................	31
4.10.5 Definition of viewing angles......................................................................................................	31
5. RELIABILITY TESTS.............................................................................................................................	32
6. PRECAUTIONS .......................................................................................................................................	33
6.1 MEANING OF CAUTION SIGNS ......................................................................................................	33
6.2 CAUTIONS ..........................................................................................................................................	33
6.3 ATTENTIONS ......................................................................................................................................	33
6.3.1 Handling of the product ...............................................................................................................	33
6.3.2 Environment.................................................................................................................................	34
6.3.3 Characteristics..............................................................................................................................	34
6.3.4 Other ............................................................................................................................................	35
7. OUTLINE DRAWINGS ...........................................................................................................................	36
7.1 FRONT VIEW ......................................................................................................................................	36
7.2 REAR VIEW ........................................................................................................................................	37

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NL3224BC35-22

1.OUTLINE

1.1 STRUCTURE AND PRINCIPLE

Color LCD module NL3224BC35-22 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 circuit, 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.

1.2APPLICATION

•For industrial use

1.3FEATURES

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

•High luminance

•Wide color gamut

•Wide viewing angle

•Low reflection

•6-bit digital RGB signals

•Reversible-scan direction

•Selectable QVGA or VGA mode

•Edge light type (without inverter)

•Replaceable lamp for backlight

•Acquisition product for UL60950-1/CSA-C22.2 No.60950-1-03 (File number: E170632)

• Compliance with the European RoHS directive (2002/95/EC) (From product which was produced after April. 1, 2006)

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2. GENERAL SPECIFICATIONS

	Display area		111.36 (H) × 83.52 (V) mm
	Diagonal size of display		14cm (5.5 inches)
	Drive system		a-Si TFT active matrix
	Display color		262,144 colors
	Pixel		320 (H) × 240 (V) pixels
	Pixel arrangement		RGB (Red dot, Green dot, Blue dot) vertical stripe
	Dot pitch		0.116 (H) × 0.348 (V) mm
	Pixel pitch		0.348 (H) × 0.348 (V) mm
	Module size		134.0 (W) × 104.5 (H) × 12.5 (D) mm (typ.)
	Weight		215g (typ.)
	Contrast ratio	Note1	500:1 (typ.)
	Viewing angle	Note1	At the contrast ratio≥ 10:1
			• Horizontal: Right side 55° (typ.), Left side 55° (typ.)
			• Vertical: Up side 50° (typ.), Down side 40° (typ.)
			At DPSH, DPSV= Low or Open: Normal scan
	Designed viewing direction		• Viewing direction without image reversal: down side (6 o'clock)
			• Viewing direction with contrast peak: up side (12 o'clock)
			• Viewing angle with optimum grayscale (γ=2.2): normal axis (perpendicular)
	Polarizer surface		Clear + Antireflection (AR)
	Polarizer pencil-hardness		2H (min.) [by JIS K5400]
	Color gamut		At LCD panel center
			50% (typ.) [against NTSC color space]
	Response time		Ton+Toff (10%←→ 90%)
			30ms (typ.)
	Luminance		At IBL= 5.0mArms / lamp
			750cd/m2 (typ.)
			6-bit digital signals for data of RGB colors,
	Signal system		Dot clock (CLK), Data enable (DE),
			Horizontal synchronous signal (Hsync),
			Vertical synchronous signal (Vsync)
	Power supply voltage		LCD panel signal processing board: 3.3V or 5.0V
			Edge light type: 2 cold cathode fluorescent lamps
			Replaceable part
	Backlight		• Lamp holder set: Type No. 55LHS11
			Recommended inverter (Option)
			• Inverter: Type No. 55PW131
	Power consumption	Note1	At IBL=5.0mArms / lamp, Checkered flag pattern
			3.8W (typ., Power dissipation of the inverter is not included.)
	Note1: At QVGA mode

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3. BLOCK DIAGRAM

Host	LCD module (Product)

R0 to R5	100Ω
G0 to G5	100Ω
B0 to B5	100Ω
CLK	47Ω
Hsync	100Ω
	100Ω	Controller
Vsync	100Ω
DE
	47kΩ	V-driver	240 lines
DPSH	Note3
DPSV	Note4
Q/V
	Note4	Power supply
		for gradation
GND
Note1, Note2
VCC		DC/DC
	Fuse	converter

LCD panel signal processing board

H-driver

960 lines

LCD panel

H: 320 × 3 (R, G, B) V: 240

Backlight (Edge light type)

		VBLH	Lamp
VDDB		VBLC
		Note1
	Inverter (Option)
GNDB		VBLH
			Lamp
Note2		VBLC
		Note1

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Note1: Relations between GND (Signal ground), shield plate and VBLC (Lamp low voltage terminal) in the LCD module are as follows.

Front shield plate - Rear shield plate	Not connected
GND - Front shield plate and Rear shield plate	Not connected
VBLC - Front shield plate and Rear shield plate	Not connected
GND - VBLC	Not connected

Front shield plate

Rear shield plate

Note2: GND and GNDB must be connected to customer equipment’s ground, and it is recommended that these grounds are connected together in customer equipment.

Note3: Pull-down resistance of DPSH pin

Power supply voltage		Pull-down resistance of DPSH pin (kΩ)
VCC	min.		typ.		max.
at 3.3V	8.2		13.0		18.3
at 5.0V	6.0		10.0		15.0

Note4: Pull-down resistance of DPSV pin and Q/V pin

	Power supply voltage	Pull-down resistance of DPSV pin and Q/V pin (kΩ)
	VCC	min.	typ.	max.
	at 3.3V	13.0	18.3	23.0
	at 5.0V	10.0	15.0	20.0
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NL3224BC35-22

4.DETAILED SPECIFICATIONS

4.1 MECHANICAL SPECIFICATIONS

Parameter	Specification		Unit
Module size	134.0 ± 0.5 (W) × 104.5 ± 0.5 (H) × 12.5 ± 0.5 (D)	Note1	mm
Display area	111.36 (H) × 83.52 (V)	Note1	mm
Weight	215 (typ.), 225 (max.)		g

Note1: See "7. OUTLINE DRAWINGS".

4.2 ABSOLUTE MAXIMUM RATINGS

			Parameter		Symbol	Rating	Unit	Remarks
	Power supply		LCD panel signal processing board		VCC	-0.3 to +6.5	V
	voltage
			Lamp voltage		VBLH	1,500	Vrms	Ta= 25°C
	Input voltage		Display signals		VD
			Note1			-0.3 to VCC+0.3	V
	for signals		Function signals		VF
			Note2
		Incident light intensity			II	150,000	lx	Note3
			Storage temperature		Tst	-30 to +80	°C	-
	Operating temperature			Front surface	TopF	-10 to +70	°C	Note4
				Rear surface	TopR	-10 to +75	°C	Note5
						≤ 95	%	Ta ≤ 40°C
						≤ 85	%	40 < Ta ≤ 50°C
			Relative humidity		RH	≤ 70	%	50 < Ta ≤ 55°C
			Note6			≤ 60	%	55 < Ta ≤ 60°C
						≤ 50	%	60 < Ta ≤ 65°C
						≤ 42	%	65 < Ta ≤ 70°C
			Absolute humidity		AH	≤ 83	g/m3	Ta > 70°C
			Note6			Note7

Note1: CLK, Hsync, Vsync, DE, DATA (R0 to R5, G0 to G5, B0 to B5) Note2: DPSH, DPSV, Q/V

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.

Note4: Measured at center of LCD panel surface (including self-heat)

Note5: Measured at center of LCD module's rear shield surface (including self-heat) Note6: No condensation

Note7: Water amount at Ta= 70°C and RH= 42%

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4.3ELECTRICAL CHARACTERISTICS

4.3.1LCD panel signal processing board

								(Ta= 25°C)
	Parameter		Symbol	min.	typ.	max.	Unit	Remarks
	Power supply voltage		VCC	3.0	3.3	3.6	V	at VCC= 3.3V
				4.75	5.0	5.25	V	at VCC= 5.0V
				-	65	105	mA	at VCC= 3.3V
		QVGA			Note1	Note2
		mode		-	50	85	mA	at VCC= 5.0V
	Power supply current		ICC		Note1	Note2
				-	95	175	mA	at VCC= 3.3V
		VGA			Note1	Note2
		mode		-	70	130	mA	at VCC= 5.0V
					Note1	Note2
	Logic input voltage for	High	VDLH	0.7VCC	-	VCC	V	CMOS level
	display signals	Low	VDLL	0	-	0.3VCC	V
	Input voltage for DPSH,	High	VFDH	0.7VCC	-	VCC	V	-
	DPSV and Q/V signal	Low	VFDL	0	-	0.9	V

Note1: Checkered flag pattern [by EIAJ ED-2522]

Note2: Pattern for maximum current

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4.3.2 Backlight lamp								(Ta=25°C, Note1)
	Parameter	Symbol	min.	typ.	max.	Unit		Remarks
	Lamp current	IBL	4.5	5.0	5.5	mArms		at IBL= 5.0mArms:
	Note3							L= 750cd/m2
	Lamp voltage	VBLH	-	350	-	Vrms		-
	Note2, Note3
	Lamp starting voltage	VS	550	-	-	Vrms		Ta= 25°C
	Note2, Note3, Note4, Note7		780	-	-	Vrms		Ta= -10°C
	Lamp oscillation frequency	FO	39	43	47	kHz		-
	Note5

Note1: This product consists of 2 backlight lamps, and these specifications are for each lamp.

Note2: The lamp voltage cycle between lamps should be kept on a same phase. "VS" and "VBLH" are the voltage value between low voltage side (Cold) and high voltage side (Hot).

Note3: The asymmetric ratio of working waveform for lamps (Power supply voltage peak ratio, power supply current peak ratio and waveform space ratio) should be less than 5 % (See the following figure.). If the waveform is asymmetric, DC (Direct current) element apply into the lamp. In this case, a lamp lifetime may be shortened, because a distribution of a lamp enclosure substance inclines toward one side between low voltage terminal (Cold terminal) and high voltage terminal (Hot terminal). When designing the inverter, evaluate asymmetric of lamp working waveform sufficiently.

	Pa		Pa - Pb	× 100 ≤ 5 %
	Sa
	0	Sb	Pb
			Sa - Sb	× 100 ≤ 5 %
	Pb
			Sb

Pa: Supply voltage/current peak for positive, Pb: Supply voltage/current peak for negative Sa: Waveform space for positive part, Sb: Waveform space for negative part.

Note4: The inverter should be designed so that the lamp starting voltage can be maintained for more than 1 second. Otherwise the lamp may not be turned on.

Note5: In case "FO" is not the recommended value, beat noise may display on the screen, because of interference between "FO" and "1/th". Recommended value of "FO" is as following

FO = 14 × th1 × (2n-1)

th: Horizontal cycle (See "4.9 INPUT SIGNAL TIMINGS".)

n:Natural number (1, 2, 3 )

Note6: Method of lamp cable installation may invite fluctuation of lamp current and voltage or asymmetric of lamp working waveform. When designing method of lamp cable installation, evaluate the fluctuation of lamp current, voltage and working waveform sufficiently.

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Note7: In case of Inverter with Ballast condenser, "VS" is the voltage level between Ballast condenser and Connector (Refer to the below “Example of measurement”). "VS" should be designed to be more than minimum "VS". Otherwise the lamp may not be turned on because the lamp starting voltage is less than minimum "VS".

Example of measurement

Probe capacity: 3pF (Tektronix, inc.: P6015A)

Ballast condenser

(Lamp side) VS High voltage probe

Transformer	Connector
Inverter	Probe capacity

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		Ripple voltage	Note1	Unit
			(Measure at input terminal of power supply)
	VCC	3.3V	≤ 100		mVp-p
		5.0V	≤ 100		mVp-p

Note1: The permissible ripple voltage includes spike noise.

4.3.4 Fuse

Parameter		Fuse		Rating	Fusing current	Remarks
	Type		Supplier
VCC	ICP-S1.8		ROHM Co., Ltd.	1.8A	4.0A	Note1
				50V

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.

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4.4POWER SUPPLY VOLTAGE SEQUENCE

4.4.1LCD panel signal processing board

	ON	OFF	ON
VCC	3.0V or 4.75V
Note1	0V
	Tr < 20ms		Toff >200ms

Display signals,

Function signals

Note2

	VALID period
0ms < t < 35ms	0ms < t < 35ms

Note1: In terms of voltage variation (voltage drop) while VCC rising edge is below 3.0V in "VCC = 3.3V" or 4.75V in "VCC = 5.0V", a protection circuit may work, and then this product may not work.

Note2: Display signals (CLK, Hsync, Vsync, DE, DATA (R0 to R5, G0 to G5, B0 to B5)) and function signals (DPSH, DPSV, Q/V) must be Low or High-impedance, exclude the VALID period (See above sequence diagram), in order to avoid that internal circuits is damaged.

If some of display and function signals of this product are cut while this product is working, even if the signal input to it once again, it might not work normally. VCC should be cut when the display and function signals are stopped.

4.4.2 Inverter (Option)

Note2

Display signals,

Function signals

Note1

VALID period

VDDB

Note1: These are the display and function signals for LCD panel signal processing board.

Note2: The backlight should be turned on within the valid period of display and function signals, in order to avoid unstable data display.

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