HITACHI LMG7420PLFC-X User Manual

RECORD OF REVISION

DATA	SHEET No.	SUMMARY
FEB.10.’95	7B64PS 2704-	CHANGE:
	LMG7420PLFC-X-2			ITEM		OPERATING
	PAGE 4-1/1					MIN.		MAX.
			AMBIENT TEMPERATURE			0°C		40°C
				↓
				ITEM		OPERATING
						MIN.		MAX.
			AMBIENT TEMPERATURE			0°C		40°C
	7B64PS 2705-	CHANGE:
	LMG7420PLFC-X-2
	PAGE 5-1/2			CONDITION				TYP.
			VDD-V0	Ta=40°C , φ=10°C				15.4
				↓
				CONDITION				TYP.
			VDD-V0	Ta=50°C , φ=10°C				15.2

KAOHSIUNG HITACHI	DATA	Feb.10.’95	SH.	7B64PS 2702-LMG7420PLFC-X-2	PAGE	2-1/1
ELECTRONICS CO.,LTD			No.

3. MECHANICAL DATA

(1)	PART NAME	LMG7420PLFC-X
(2)	MODULE SIZE	159.4(W)mm * 101.0(H)mm * 11.0(D)mm max.
(3)	DOT SIZE	0.47 (W)mm * 0.47		(H)mm
(4)	DOT PITCH	0.50 (W)mm * 0.50		(H)mm
(5)	NUMBER OF DOTS	240 (W)	* 128	(H)
(6)	DUTY	1/128
(7)	LCD	FILM TYPE BLACK/WHITE (NEGATIVE TYPE)
		THE UPPER POLARIZER IS ANT-GLARE.
		(HARDNESS.3H)
		THE BOTTOM POLARIZER IS TRANSMISSIVE
		TYPE.
(8)	VIEWING DIRECTION	6 O’CLOCK
(9)	BACK LIGHT	COLD CATHODE FLUORESCENT LAMP

KAOHSIUNG HITACHI	DATA	Feb.10.’95	SH.	7B64PS 2703-LMG7420PLFC-X-2	PAGE	3-1/1
ELECTRONICS CO.,LTD			No.

4. ABSOLUTE MAXIMUM RATINGS

4.1 ELECTRICAL ABSOLUTE MAXIMUM RATINGS.						VSS=0V:STANDARD
ITEM			SYMBOL		MIN,	MAX.	UNIT	COMMENT
POWER SUPPLY FOR LOGIC			VDD-VSS	0		6.5	V
POWER SUPPLY FOR LC DRIVE			VDD-VEE	0		20.5	V
INPUT VOLTAGE			Vi	-0.3		VDD+0.3	V
INPUT CURRENT			Ii	0		1	A
STATIC ELECTRICITY		-		-		-	-	NOTE 1
NOTE 1 MAKE CERTAINS YOU ARE GROUNED WHEN HAND HANDLING LCM.
4.2 ENVIRONMENTAL ABSOLUTE MAXIMUM RATINGS
ITEM	OPERATING				OPERATING		COMMENT
	MIN,		MAX.		MIN,	MAX.
AMBIENT TEMPERATURE	0°C		50°C		-20°C	60°C	NOTE 2,3
HUMIDITY	NOTE 1				NOTE 1		WITHOUT
							CONDENSATION
			4.9 m/s2			19.6 m/s2
VIBRATION	-		(0.5G)		-	2G	NOTE 4
						NOTE 5
SHOCK	-		29.4 m/s2		-	490.0 m/s2	XYZ DIRECTIONS
			(3G)			(50G)
CORROSIVE GAS	NOT ACCEPTABLE				NOT ACCEPTABLE

NOTE 1 Ta<=40°C : 85%RH max.
	Ta>40°C : ABSOLUTE HUMIDITY MUST BE LOWER
	THAN THE HUNIDITY OF 85%RH AT 40°C
NOTE 2	Ta AT -20°C ----- <48HRS, AT 60°C ----- <168HRS
NOTE 3	BACKGROUND COLOR CHANGES SLIGHTLY DEPENDING ON AMBIENT
	TEMPERATURE. THIS PHENOMENON IS REVERSIBLE.
	HIGHER STARTING VOLTAGE OF CFL AND HIGHER LCD DRIVING VOLTAGE
	ARE NEEDED WHILE OPERATING AT 0°C.
	THE LIFE TIME OF CFL WILL BE REDUCED WHILE OPERATING AT 0°C
	NEED TO MAKE SURE OF VALUE OF IL AND CHARACTERISTICS OF
	INVERTER.
	ALSO THE RESPONSE TIME AT 0°C WILL BE SLOWER.
NOTE 4	5Hz~100Hz (EXCEPT RESONANCE FREQUENCY)
NOTE 5	THIS MODULE SHOULD BE OPERATED NORMALLY AFTER FINISH THE TEST.
KAOHSIUNG HITACHI		DATA	Feb.10.’95	SH.	7B64PS 2704-LMG7420PLFC-X-2	PAGE	4-1/1
ELECTRONICS CO.,LTD				No.

5.ELECTRICAL CHARACTERISTICS

5.1ELECTRICAL CHARACTERISTICS OF LCM

	ITEM	SYMBOL	CONDITION		MIN.	TYP.	MAX.	UNIT
	POWER SUPPLY VOLTAGE	VDD-VSS	-		4.75	5.0	5.25	V
	FOR LOGIC
	LC DRIVER CIRCUIT	VEE-VSS	-		-15.5	-15.0	-14.5	V
	POWER SUPPLY VOLTAGE
	INPUT VOLTAGE	VI	H LEVEL		0.8VDD	-	VDD	V
			L LEVEL		0	-	0.2VDD	V
	POWER SUPPLY CURRENT	IDD	VDD-VSS=5.0V		-	11.7	14.0	mA
	FOR LOGIC NOTE 1
	POWER SUPPLY CURRENT	IEE	VDD-VSS=5.0V		-	2.5	4.0	mA
	FOR LCD RIVING NOTE 1
	RECOMMENDED		Ta= 0°C , φ=10°		-	16.9	-	V
	LC DRIVING VOLTAGE	VDD-V0	Ta=25°C , φ=10°		-	15.8	-	V
	NOTE 2		°	φ °	-	15.2	-	V
			Ta=50 C ,	=10

NOTE 1 VDD-V0=15.8V , Ta=25°C

NOTE 2 RECOMMENDED LC DRIVING VOLTAGE FLUCTATE ABOUT +/-1.0V BY EACH MODULE.

TEST PATTERN IS ALL “Q”.

KAOHSIUNG HITACHI	DATA	Feb.10.’95	SH.	7B64PS 2705-LMG7420PLFC-X-2	PAGE	5-1/2
ELECTRONICS CO.,LTD.			No.

5.2 ELECTRICAL CHARACTERISTICS OF BACKLIGHT
ITEM	SYMBOL	MIN.	TYP.	MAX.	UNIT	NOTE
LAMP VOLTAGE	VL	-	360	-	V	Ta=25°C
FREQUENCY	fL	30	70	85	KHz	Ta=25°C
LAMP CURRENT	IL	2.5	5	5.5	mA	Ta=25°C
STARTI DISCHARGE VOLTAGE	VS	(1000)	-	-	V	Ta=25°C
	NOTE 2

NOTE 1 PLEASE CERTAINLY INFORM HITACHI BEFORE DESIGNING.

LAMP DRIVE CIRCUIT ACCORDING TO THE ABOVE SPECIFICATIONS.

NOTE 2 STARTING DISCHARGE VOLTAGE IS INCREASED WHEN LCM IS OPERATING

AT IOWER TRMPERATURE.

PLEASE CHECK THE CHARACTERISTICS OF INVERTER BEFORE APPLING.

NOTE 3 AVERAGE LIFE TIME OF CFL WILL BE DECREASED WHEN LCM IS OPERATING AT LOWER TEMPERATURE.

KAOHSIUNG HITACHI	DATA	Feb.10.’95	SH.	7B64PS 2705-LMG7420PLFC-X-2	PAGE	5-2/2
ELECTRONICS CO.,LTD.			No.

6. OPTICAL CHARACTERISTICS

6.1 OPTICAL CHARACTERISTICS				Ta=25°C (BACKLIGHT)
ITEM	SYMBOL	CONDITION	MIN.		TYP.	MAX.	UNIT	NOTE
VIEWING AREA	φ2-φ1	K>=2.0	30		40	-	deg	1,2
CONTRAST RATIO	K	φ=10° θ=0°	-		20	-	-	3
RESPONES TIME (RISE)	tr	φ=10° θ=0°	-		(160)	-	ms	4
RESPONES TIME (FALL)	tf	φ=10° θ=0°	-		(110)	-	ms	4

NOTE1. DEFINITION OF θ AND φ

Z (NORMAL)

φ2

φ1 y(θ=180°)

X X’

y'(θ=0°)

(MEASURE CONDITION BY HITACHI) NOTE3. DEFINITION OF CONTRAST “K”

K=	BRIGHTNESS ON SELECTED DOT (B1)
	BRIGHTNESS ON NON-SELECTED DOT (B2)
						(B1)
						(Di=”H”)
	BRIGHTNESS	B1				φ=10°
						(B2)
						(Di=”L”)
		B2
			OPERATING VOLTAGE

NOTE2. DEFINITION OF VIEWING ANGLE φ1 AND φ2		φ
K
	φ1<10°<φ2		φ=0°
2.0
			SENSER
φ1	φ2
CONTRAST RATIO K VS VIEWING ANGLE φ		BACKLIGHT	LCD

NOTE4. DEFINITION OF OPTICAL RESPONSE

NON-SELECTIVE ATATE

BRIGHTNESS	100%	90%

SELECTIVE ATATE

NON-SELECTIVE ATATE

10%

tr	tf
RISE TIME	FALL TIME

KAOHSIUNG HITACHI	DATA	Feb.10.’95	SH.	7B64PS 2706-LMG7420PLFC-X-2	PAGE	6-1/2
ELECTRONICS CO.,LTD.			No.

7. BLOCK DIAGRAM

Y240	80
LCD 240*128	80

Y1

80

X1	X128
64	64

IC5

IC4

IC3

IC1

IC2

FLM	CL1		CL2		D1					8
			CONTROLLER						13	RAM
					8					OSC
F/S		CE		RET	C/D	WR RD DB0		~	DB7

LCD		M’
V
POWER CIRCUIT	TIMING	D1’

VDD VSS V0 VEE

REVERSE

KAOHSIUNG HITACHI	DATA	Feb.10.’95	SH.	7B64PS 2707-LMG7420PLFC-X-2	PAGE	7-1/1
ELECTRONICS CO.,LTD.			No.