HITACHI LMG7420PLFC-X User Manual

RECORD OF REVISION

DATA SHEET No. SUMMARY

FEB.10.’95 CHANGE:

7B64PS 2704­LMG7420PLFC-X-2
PAGE 4-1/1

AMBIENT TEMPERATURE 0°C 40°C

AMBIENT TEMPERATURE 0°C 40°C

CHANGE:7B64PS 2705­LMG7420PLFC-X-2
PAGE 5-1/2

VDD-V0 Ta=40°C , φ=10°C 15.4

ITEM

ITEM

OPERATING

MIN. MAX.

↓

OPERATING

MIN. MAX.

CONDITION TYP.

↓

KAOHSIUNG HITACHI
ELECTRONICS CO.,LTD

DATA Feb.10.’95

CONDITION TYP.

VDD-V0 Ta=50°C , φ=10°C 15.2

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7B64PS 2702-LMG7420PLFC-X-2 PAGE 2-1/1

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)

(8) VIEWING DIRECTION 6 O’CLOCK

THE UPPER POLARIZER IS ANT-GLARE.
(HARDNESS.3H)
THE BOTTOM POLARIZER IS TRANSMISSIVE
TYPE.

(9) BACK LIGHT COLD CATHODE FLUORESCENT LAMP

KAOHSIUNG HITACHI
ELECTRONICS CO.,LTD

DATA Feb.10.’95

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7B64PS 2703-LMG7420PLFC-X-2 PAGE 3-1/1

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

OPERATING OPERATING COMMENTITEM

MIN, MAX. MIN, MAX.

AMBIENT TEMPERATURE 0°C 50°C -20°C 60°C NOTE 2,3
HUMIDITY NOTE 1 NOTE 1

2

19.6 m/s

VIBRATION -

4.9 m/s
(0.5G) -

2G

WITHOUT
CONDENSATION

2

NOTE 4

NOTE 5

SHOCK -

29.4 m/s
(3G)

2

-

490.0 m/s
(50G)

2

XYZ DIRECTIONS

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
ELECTRONICS CO.,LTD

DATA Feb.10.’95

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7B64PS 2704-LMG7420PLFC-X-2 PAGE 4-1/1

No.

5. ELECTRICAL CHARACTERISTICS

5.1 ELECTRICAL CHARACTERISTICS OF LCM
ITEM SYMBOL CONDITION MIN. TYP. MAX. UNIT

POWER SUPPLY VOLTAGE
FOR LOGIC
LC DRIVER CIRCUIT
POWER SUPPLY VOLTAGE

POWER SUPPLY CURRENT
FOR LOGIC NOTE 1
POWER SUPPLY CURRENT
FOR LCD RIVING NOTE 1
RECOMMENDED
LC DRIVING VOLTAGE
NOTE 2

NOTE 1 VDD-V0=15.8V , Ta=25°C

VDD-VSS - 4.75 5.0 5.25 V

VEE-VSS - -15.5 -15.0 -14.5 V

VI

IDD VDD-VSS=5.0V - 11.7 14.0 mA

IEE VDD-VSS=5.0V - 2.5 4.0 mA

VDD-V0

H LEVEL 0.8VDD - VDD VINPUT VOLTAGE

L LEVEL 0 - 0.2VDD V

Ta= 0°C , φ=10° - 16.9 - V
Ta=25°C , φ=10° - 15.8 - V
Ta=50°C , φ=10° - 15.2 - V

NOTE 2 RECOMMENDED LC DRIVING VOLTAGE FLUCTATE ABOUT +/-1.0V BY EACH
MODULE.
TEST PATTERN IS ALL “Q”.

KAOHSIUNG HITACHI
ELECTRONICS CO.,LTD.

DATA Feb.10.’95

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7B64PS 2705-LMG7420PLFC-X-2 PAGE 5-1/2

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

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.

VS

NOTE 2

(1000) - - V Ta=25°C

KAOHSIUNG HITACHI
ELECTRONICS CO.,LTD.

DATA Feb.10.’95

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7B64PS 2705-LMG7420PLFC-X-2 PAGE 5-2/2

No.

6. OPTICAL CHARACTERISTICS

φ2φ

X

X’

φ=10°

BRIGHTNESS

2.0

K

φ

φ1φ

φ

LCD

SENSER

φ

φ=0°

BRIGHTNESS

RISE TIME

FALL TIME

NON-SELECTIVE ATATE

NON-SELECTIVE ATATE

6.1 OPTICAL CHARACTERISTICS Ta=25°C (BACKLIGHT)
ITEM SYMBOL

VIEWING AREA
CONTRAST RATIO
RESPONES TIME (RISE)
RESPONES TIME (FALL)

φ2-φ1 K>=2.0 30 40 - deg 1,2

K φ=10° θ=0° - 20 - - 3
tr φ=10° θ=0° - (160) - ms 4
tf φ=10° θ=0° - (110) - ms 4

NOTE1. DEFINITION OF θ AND φ NOTE3. DEFINITION OF CONTRAST “K”

Z (NORMAL)

y(θ=180°)

1

CONDITION MIN. TYP. MAX. UNIT NOTE

(MEASURE CONDITION BY HITACHI)

K=

BRIGHTNESS ON SELECTED DOT (B1)

BRIGHTNESS ON NON-SELECTED DOT (B2)

(B1)

(Di=”H”)

B1

(B2)

(Di=”L”)

y'(θ=0°)

NOTE2. DEFINITION OF VIEWING ANGLE φ1 AND φ2

1<10°<φ2

2

CONTRAST RATIO K VS VIEWING ANGLE

NOTE4. DEFINITION OF OPTICAL RESPONSE

SELECTIVE ATATE

100%

90%

B2

OPERATING VOLTAGE

BACKLIGHT

10%

KAOHSIUNG HITACHI
ELECTRONICS CO.,LTD.

DATA Feb.10.’95

tftr

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7B64PS 2706-LMG7420PLFC-X-2 PAGE 6-1/2

No.

7. BLOCK DIAGRAM

IC5

80

X1

Y1

Y240

IC4

IC3

IC2

IC1

808064

64

FLM

CL1

CL2

D1

8

13

OSC

RAM

CONT-

ROLLER

POWER

CIRCUIT

TIMING

V

LCD

M’

D1’

REVERS

VEE

V0

VSS

VDD

DB0

DB7

RDWRC/D

RET

CE

F/S

~

KAOHSIUNG HITACHI
ELECTRONICS CO.,LTD.

DATA Feb.10.’95

E

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