LG Display LC420EUG-PEF1 Specification

( ) Preliminary Specification

(●) Final Specification

Title 42.0” WUXGA TFT LCD

LC420EUG

Product Specification

SPECIFICATION

FOR

APPROVAL

BUYER TOSHIBA

MODEL

APPROVED BY

/

/

/

SIGNATURE

DATE

SUPPLIER LG Display Co., Ltd.

*MODEL LC420EUG

SUFFIX PEF1 (RoHS Verified)

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

S. H. Lee / Team Leader

REVIEWED BY

H. I. Jang / Project Leader

PREPARED BY

J. Y. Ryu / Engineer

SIGNATURE

DATE

Please return 1 copy for your confirmation with

your signature and comments.

Ver. 1.0

TV Product Development Dept.

LG Display Co., Ltd.

1 /36

Product Specification

CONTENTS

LC420EUG

Number ITEM

COVER

CONTENTS

RECORD OF REVISIONS 3

1 GENERAL DESCRIPTION

2 ABSOLUTE MAXIMUM RATINGS

3 ELECTRICAL SPECIFICATIONS 6

3-1 ELECTRICAL CHARACTERISTICS

3-2 INTERFACE CONNECTIONS

3-3 SIGNAL TIMING SPECIFICATIONS

3-4 PANEL PIXEL STRUCTURE

3-5 POWER SEQUENCE

4 OPTICAL SPECIFICATIONS

5 MECHANICAL CHARACTERISTICS

6 RELIABILITY

Page

1

2

4

5

6

9

12

13

14

15

21

24

7 INTERNATIONAL STANDARDS

7-1 SAFETY

7-2 EMC 25

7-3 Environment 25

8 PACKING

8-1 DESIGNATION OF LOT MARK

8-2 PACKING FORM

9 PRECAUTIONS 27

9-1 MOUNTING PRECAUTIONS 27

9-2 OPERATING PRECAUTIONS 28

9-3 ELECTROSTATIC DISCHARGE CONTROL 28

9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE 28

9-5 STORAGE 28

9-6 OPERAGING CONDITION GUIDE 28

Ver. 1.0

25

25

26

26

26

2 /36

Product Specification

RECORD OF REVISIONS

Revision No. Revision Date Page Description

LC420EUG

0.0

0.1

1.0

1.1

Jan, 19, 2012 - Preliminary Specification (First Draft)

Jan. 30, 2012 - Spec. update

Feb. 02, 2012 - Final Draft

Feb. 28. 2012 p24 Update spec of shock test

Ver. 1.0

3 /36

LC420EUG

Product Specification

1. General Description

The LC420EUH is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)
ba ck li g ht s ys te m. T he m a tr ix e mp l oys a - Si Th in F ilm T ran s is t or a s t h e a ct i ve ele m en t.
It is a transmissive display type which is operating in the normally black mode. It has a 46.96 inch diagonally
measured active display area with WUXGA resolution (1080 vertical by 1920 horizontal pixel array).
Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arrayed in vertical stripes.
Gray scale or the luminance of the sub-pixel color is determined with a 8-bit gray scale signal for each dot.
Therefore, it can present a palette of more than 16.7M(true) colors.
It is intended to support LCD TV, PCTV where high brightness, super wide viewing angle, high color gamut,
high color depth and fast response time are important.

Power (VCC, VDD, HVDD, VGH, VGL)

Gate Control Signal

Gamma Reference Voltage

EPI (RGB & Control signal) for Left drive

Power (VCC, VDD, HVDD, VGH, VGL)

Gate Control Signal

Gamma Reference Voltage

EPI (RGB & Control Signal) for Right drive

LED Anode

LED Cathode

CN201(8Pin)

CN202 (8pin)

CN1

(50pin)

CN2

(50pin)

S1 S1920

G1

G1080

Source Driver Circuit

TFT - LCD Panel

(1920 × RGB × 1080 pixels)

[Gate In Panel]

Backlight Assembly

H : 6 Block

General Features

Active Screen Size 42.02 inches(1067.31mm) diagonal

Outline Dimension 950.0(H) X 554.6(V) X 9.4(B)/16.9(D)

Pixel Pitch 0.4845 mm x 0.4845 mm

Pixel Format 1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement

Color Depth 8-bit, 16.7 M colors (※ 1.06B colors @ 10 bit (D) System Output )

Drive IC Data Interface

Luminance, White 360 cd/m2 (Center 1point ,Typ.)

Source D-IC : 8-bit EPI, gamma reference voltage, and control signals
Gate D-IC : Gate In Panel

Viewing Angle (CR>10) Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))

Power Consumption Total 51.2W (Typ.) (Logic=6.3W with T-CON, LED BL =44.9W(IF_Cathode=130mA))

Weight 8.5Kg (Typ.)

Display Mode Transmissive mode, Normally black

Surface Treatment Hard coating(2H), Anti-glare treatment of the front polarizer (Haze < 1%)

Ver. 1.0

4 /36

Product Specification

2. Absolute Maximum Ratings

The following items are maximum values which, if exceeded, may cause faulty operation or
to the LCD module.

Table 1. ABSOLUTE MAXIMUM RATINGS

LC420EUG

permanent damage

Parameter Symbol

Logic & EPI Power Voltage VCC -0.5 +2.2 VDC

Gate High Voltage VGH +18.0 +30.0 VDC

Gate Low Voltage VGL -8.0 -4.0 VDC

Source D-IC Analog Voltage VDD -0.3 +18.0 VDC

Gamma Ref. Voltage (Upper) VGMH ½VDD-0.5 VDD+0.5 VDC

Gamma Ref. Voltage (Low) VGML -0.3 ½ VDD+0.5 VDC

LED Input Voltage VF - +75.0 VDC

Panel Front Temperature TSUR - +68 °C 4

Operating Temperature TOP 0 +50 °C

Storage Temperature TST -20 +65 °C

Operating Ambient Humidity HOP 10 90 %RH

Storage Humidity HST 10 90 %RH

Note

1. Ambient temperature condition (Ta = 25 ± 2 °C )

Min Max

Value

Unit Note

2. Temperature and relative humidity range are shown in the figure below.

Wet bulb temperature should be Max 39°C, and no condensation of water.

3. Gravity mura can be guaranteed below 40°C condition.

4. The maximum operating temperatures is based on the test condition that the surface temperature

of display area is less than or equal to 68°C with LCD module alone in a temperature controlled chamber.
Thermal management should be considered in final product design to prevent the surface temperature of
display area from being over 68℃. The range of operating temperature may be degraded in case of
improper thermal management in final product design.

90%

60

60%

1

2,3

Ver. 1.0

Wet Bulb
Temperature [°C]

20

10

0

10 20 30 40 50 60 70 800-20
Dry Bulb Temperature [°C]

30

40

50

40%

10%

Storage

Operation

Humidity [(%)RH]

5 /36

LC420EUG

Product Specification

3. Electrical Specifications

3-1. Electrical Characteristics

It requires several power inputs. The VCC is the basic power of LCD Driving power sequence, Which is used
to logic power voltage of Source D-IC and GIP.

Table 2. ELECTRICAL CHARACTERISTICS

Parameter Symbol Condition MIN TYP MAX Unit Note

Logic & EPI Power Voltage VCC - 1.62 1.8 1.98 VDC

Logic High Level Input Voltage VIH - 1.4 - VCC VDC

Logic Low Level Input Voltage VIL - 0 - 0.4 VDC

Source D-IC Analog Voltage VDD - 16.5 16.7 16.9 VDC

Half Source D-IC Analog

Voltage

H_VDD - 8.15 8.35 8.55 VDC 6

V

GMH

Gamma Reference Voltage

V

GML

Common Voltage Vcom Reverse 6.8 7.1 7.4 V

EPI input common voltage VCM LVDS Type 0.8 VCC/2 1.3 V

EPI Input eye diagram Veye - 90 - - mV

Gate High Voltage VGH

Gate Low Voltage VGL

GIP Bi-Scan Voltage

GIP Refresh Voltage

GIP Start Pulse Voltage VST - VGL - VGH V

GIP Operating Clock GCLK - VGL - VGH V

Total Power Current

Total Power Consumption

VGI_P - VGL - - VDC
VGI_N - - - VGH VDC

VGH

even/odd

ILCD - - 528 686 mA 1

PLCD - - 6.34 7.92 Watt 1

(GMA1 ~ GMA9) H_VDD+0.2V - VDD-0.2 VDC

(GMA10 ~ GMA18) 0.2 - H_VDD-0.2V VDC

@ 25℃ 26.7 27 27.3 VDC

@ 0℃ 29.7 30 30.3 VDC

-

- VGL - VGH V

-5.2 -5.0 -4.8 VDC

5EPI input differential voltage Vdiff - 150 - 500 mV

Note:

1. The specified current and power consumption are under the VLCD=12V., 25 ± 2°C, fV=60Hz

condition whereas mosaic pattern(8 x 6) is displayed and fVis the frame frequency.

2. The above spec is based on the basic model.

3. All of the typical gate voltage should be controlled within 1% voltage level

4. Ripple voltage level is recommended under ±5% of typical voltage

5. In case of EPI signal spec, refer to Fig 2 for the more detail.

6. HVDD Voltage level is half of VDD and it should be between Gamma9 and Gamma10.

Ver. 1.0

6 /36

VGH

VGHM

GND

VGL

LC420EUG

Product Specification

Without GPM With GPM

FIG. 1 Gate Output Wave form without GPM and with GPM

EPI +

0 V

0 V

Vdiff

Vdiff

(Differential Probe)

(Differential Probe)

(Differential Probe)(Differential Probe)

FIG. 2-1 EPI Differential signal characteristics

EPI -

0 V

1 UI

0.5 UI

B1

(Differential Probe)

(Differential Probe)

(Differential Probe)(Differential Probe)

B2

FIG. 2-2 Eye Pattern of EPI Input

Vdiff

(Active Probe)

(Active Probe)

(Active Probe)(Active Probe)

Vcm

Veye

Veye

Ver. 1.0

****Source PCB

Source PCB

Source PCBSource PCB

FIG. 3 Measure point

7 /36

Product Specification

Table 3. ELECTRICAL CHARACTERISTICS (Continue)

LC420EUG

Parameter Symbol

Backlight Assembly :

Forward Current
(one array)

Forward Voltage V
Forward Voltage Variation △V

Power Consumption P

Burst Dimming Duty On duty 1 100 %

Burst Dimming Frequency 1/T 95 182 Hz 8

LED Array : (APPENDIX-V)

Life Time 30,000 50,000 Hrs 7

Notes :

The design of the LED driver must have specifications for the LED array in LCD Assembly.

Anode I

Cathode I

F (anode)

F (cathode)

F

F

BL

Min Typ Max

123.5 130 136.5 mAdc

52.2 57.6 61.2 Vdc 4

Values

390 mAdc

1.7 Vdc 5

44.9 47.7 W 6

Unit Note

The electrical characteristics of LED driver are based on Constant Current driving type.
The performance of the LED in LCM, for example life time or brightness, is extremely influenced by the
characteristics of the LED Driver. So, all the parameters of an LED driver should be carefully designed.
When you design or order the LED driver, please make sure unwanted lighting caused by the mismatch of the
LED and the driver (no lighting, flicker, etc) has never been occurred. When you confirm it, the LCD–
Assembly should be operated in the same condition as installed in your instrument.

1. Electrical characteristics are based on LED Array specification.

2. Specified values are defined for a Backlight Assembly. (IBL :2 LED array/LCM)

3. Each LED array has one anode terminal and three cathode terminals.
The forward current(IF) of the anode terminal is 390mA and it supplies 130mA into three strings, respectively

±5%

2, 3

1string(18 LED PKG)

130mA

130mA

130mA

Cathode #1

Cathode #2

Cathode #3

1 Array (3Strings)

Anode#1

390mA

° ° °

° ° °

° ° °

4. The forward voltage(VF) of LED array depends on ambient temperature (Appendix-III)

5. ΔVFmeans Max VF-Min VFin one Backlight. So VFvariation in a Backlight isn’t over Max. 1.7V

6. Maximum level of power consumption is measured at initial turn on.
Typical level of power consumption is measured after 1hrs aging at 25 ± 2°C.

7. The life time(MTTF) is determined as the time at which brightness of the LED is 50% compared to that of

initial value at the typical LED current on condition of continuous operating at 25 ± 2°C, based on duty 100%.

8. The reference method of burst dimming duty ratio.
It is recommended to use synchronous V-sync frequency to prevent waterfall
(Vsync * 2 =Burst Frequency)
Though PWM frequency is over 182Hz (max252Hz), function of backlight is not affected.

Ver. 1.0

8 /36

LC420EUG

Product Specification

3-2. Interface Connections

This LCD module employs two kinds of interface connection, two 50-pin FFC connector are used for the
module electronics and 8-pin / 8-pin connectors are used for the integral backlight system.

3-2-1. LCD Module

-LCD Connector (CN1): TF06L-50S-0.5SH (Manufactured by HRS) or Compatible

Table 3-1. MODULE CONNECTOR(CN1) PIN CONFIGURATION

No Symbol Description No Symbol Description

1 LTD_OUT LTD OUTPUT 26 GND Ground

2 NC No Connection 27 EPI2- EPI Receiver Signal(2-)

3 GCLK1 GIP GATE Clock 1 28 EPI2+ EPI Receiver Signal(2+)

4 GCLK2 GIP GATE Clock 2 29 GND Ground

5 GCLK3 GIP GATE Clock 3 30 GND Ground

6 GCLK4 GIP GATE Clock 4 31 EPI1- EPI Receiver Signal(1-)

7 GCLK5 GIP GATE Clock 5 32 EPI1+ EPI Receiver Signal(1+)

8 GCLK6 GIP GATE Clock 6 33 GND Ground

9 VGI_N GIP Bi-Scan (VGI_N = VGH) 34 VCC

10 VGI_P GIP Bi-Scan (VGI_P = VGL) 35 Vterm Vterm Power Voltage

11 VGH_ODD GIP Panel VDD for Odd GATE TFT 36 LOCKOUT3 LOCKOUT3

12 VGH_EVEN GIP Panel VDD for Even GATE TFT 37 NC No Connection

13 VGL GATE Low Voltage 38 GND Ground

14 VST VERTICAL START PULSE 39 GMA 18 GAMMA VOLTAGE 18 (Output From LCD)

15 GIP_Reset GIP Reset 40 GMA 16 GAMMA VOLTAGE 16

16 VCOM_L_FB VCOM Left Feed-Back Output 41 GMA 15 GAMMA VOLTAGE 15

17 VCOM_L VCOM Left Input 42 GMA 14 GAMMA VOLTAGE 14

18 GND Ground 43 GMA 12 GAMMA VOLTAGE 12

19 VDD Driver Power Supply Voltage 44 GMA 10 GAMMA VOLTAGE 10 (Output From LCD)

20 VDD Driver Power Supply Voltage 45 GMA 9 GAMMA VOLTAGE 9 (Output From LCD)

21 H_VDD Half Driver Power Supply Voltage 46 GMA 7 GAMMA VOLTAGE 7

22 GND Ground 47 GMA 5 GAMMA VOLTAGE 5

23 EPI3- EPI Receiver Signal(3-) 48 GMA 4 GAMMA VOLTAGE 4

24 EPI3+ EPI Receiver Signal(3+) 49 GMA 3 GAMMA VOLTAGE 3

25 GND Ground 50 GMA 1 GAMMA VOLTAGE 1(Output From LCD)

Logic & EPI Power Voltage

Note :

1. Please refer to application note for details.
(GIP & Half VDD & Gamma Voltage setting)

Ver. 1.0

9 /36

Product Specification

-LCD Connector (CN1): TF06L-50S-0.5SH (Manufactured by HRS) or Compatible

Table 3-2. MODULE CONNECTOR(CN2) PIN CONFIGURATION

No Symbol Description No Symbol Description

LC420EUG

1 GMA 1 GAMMA VOLTAGE 1 (Output From LCD)

2 GMA 3 GAMMA VOLTAGE 3

3 GMA 4 GAMMA VOLTAGE 4

4 GMA 5 GAMMA VOLTAGE 5

5 GMA 7 GAMMA VOLTAGE 7

6 GMA 9 GAMMA VOLTAGE 9 (Output From LCD)

7 GMA 10 GAMMA VOLTAGE 10 (Output From LCD)

8 GMA 12 GAMMA VOLTAGE 12

9 GMA 14 GAMMA VOLTAGE 14

10 GMA 15 GAMMA VOLTAGE 15

11 GMA 16 GAMMA VOLTAGE 16

12 GMA 18 GAMMA VOLTAGE 18 (Output From LCD)

13 GND Ground

LOCKOUT6 LOCKOUT6 39 VGH_EVEN GIP Panel VDD for Even GATE TFT

14

LOCKIN3 LOCKIN3 40 VGH_ODD GIP Panel VDD for Odd GATE TFT

15

16

Vterm Vterm Power Voltage 41 VGI_P GIP Bi-Scan (VGI_P = VGL)

17 VCC

18

GND Ground 43 GCLK6 GIP GATE Clock 6

19

EPI6- EPI Receiver Signal(6-) 44 GCLK5 GIP GATE Clock 5

EPI6+ EPI Receiver Signal(6+) 45 GCLK4 GIP GATE Clock 4

20

21 GND Ground

22 GND Ground

23

EPI5- EPI Receiver Signal(5-) 48 GCLK1 GIP GATE Clock 1

EPI5+ EPI Receiver Signal(5+) 49 NC No Connection

24

25 GND Ground

Logic & EPI Power Voltage

26 GND Ground

27 EPI1- EPI Receiver Signal(4-)

28 EPI1+ EPI Receiver Signal(4+)

29 GND Ground

30 H_VDD Half Driver Power Supply Voltage

31 VDD Driver Power Supply Voltage

32 VDD Driver Power Supply Voltage

33 GND Ground

34 VCOM_R VCOM Right Input

35 VCOM_R_FB VCOM Right Feed-Back Output

36 GIP_Reset GIP Reset

37 VST VERTICAL START PULSE

38 VGL GATE Low Voltage

42 VGI_N GIP Bi-Scan (VGI_N = VGH)

46 GCLK3 GIP GATE Clock 3

47 GCLK2 GIP GATE Clock 2

50 LTD_OUT LTD OUTPUT

Note :

1. Please refer to application note for details.
(GIP & Half VDD & Gamma Voltage setting)

Source Right PCB

Ver. 1.0

#1 #50

#14

LOCK6

To SOC ( or T-Con)

CN 2

#15

LTD OUTPUT

LOCK3

CN 1

#1 #50

#36

Source Left PCB

System (or Control) PCB

10 /36

3-2-2. Backlight Module

LC420EUG

Product Specification

[ CN201 ]

1) LED Array ass`y Connector (Plug)

: HS100-L08N-N62, (black color, manufactured by UJU)

2) Mating Connector (Receptacle)

: IS100-L08T-C46 (black color, manufactured by UJU)

[ CN202 ]

1) LED Array ass`y Connector (Plug)

: HS100-L08N-N62-A (natural color, manufactured by UJU)

2) Mating Connector (Receptacle)

: IS100-L08T-C46-A (natural color, manufactured by UJU)

Table 5. BACKLIGHT CONNECTOR PIN CONFIGURATION(CN201,CN202)

No

No Symbol(CN202)

No

No Symbol(CN201)

Symbol(CN201)

NoNo

Symbol(CN201)Symbol(CN201)

L1 Cathode

1

L2 Cathode

2

L3 Cathode

3

4

5
6
7

8

N.C

N.C

N.C

N.C

Anode_L

Description

Description

DescriptionDescription

LED Output Current

LED Output Current

LED Output Current

Open

Open

Open

Open

LED Input Current for
L1~L6

Note

Note

NoteNote

Symbol(CN202)

NoNo

Symbol(CN202)Symbol(CN202)

1

Anode_R

2

3

4

5

R1 Cathode

6

R2 Cathode

7

R3 Cathode

8

N.C

N.C

N.C

N.C

Description

Description

DescriptionDescription

LED Input Current for
R1~R6

Open

Open

Open

Open

LED Output Current

LED Output Current

LED Output Current

Note

Note

NoteNote

Ver. 1.0

Rear

L1

87654321

CN201(B) CN202(W)

CN201(B) CN202(W)

CN201(B) CN202(W) CN201(B) CN202(W)

L2 L3

Buyer LPB

Buyer LPB

Buyer LPBBuyer LPB

87654321

R1

R2

R3

11 /36

3-3. Signal Timing Specifications

Table 4. Timing Requirements

LC420EUG

Product Specification

Parameter Symbol Condition Min Typ Max Unit

Unit Interval

Effective Veye width time

Modulation Ratio of SSC

Receiver off to SOE rising time

SOE pulse width

SOE rising to 1stdata time

EPI Bandwidth

notes :

1. VModulation Ratio of SSC for 20KHz ~ 100kHz Modulation Frequency is calculated by

UI

B1&B2

Vspread

tSOE_

Rising

tSOE_

Width

tSOE_

DATA

BW

- 1.37 1.44 1.70 ns

- 0.25 - - UI Fig. 2

@100KHz - - 2 % 1

5 - - Packet Fig.4

- 4 - - Packet Fig.4

- 5 - - Packet Fig.4

- 0.588 - 0.728 GBPS

(7 – 0.05*Fmod), where Fmod unit is KHz.

note

s

EPI Input

SOE
(internal
Signal
Of S/D)

Ver. 1.0

FIG 4. SOE Width & Timing

12 /36

3-4. Panel Pixel Structure

D1 D2 D3 D4 D5 D1918 D1919 D1920 D1921

G1

G2

G3

G4

G5

G6

LC420EUG

Product Specification

G1078

G1079

G1080

FIG. 8 Panel Pixel Structure

Ver. 1.0

13 /36

3-5. Power Sequence

3-5-1. LCD Driving circuit

Power Supply For LCD VCC

Power Supply For LCD
VDD, HVDD,VGH, Gamma Ref.
Voltage

Power Supply For LCD
VGL

0V

0V

Product Specification

70%

50%

100%

T1

T2

VGH

90%

LC420EUG

T7

GIP Signal For LCD

Power For LED

Table 7. POWER SEQUENCE

Parameter

T1 0.5 - - ms

T2 0.5 -

T3 0 -

T4 10 -

T5 0 - - ms

T6 / T6’ 20 - - ms 6

T7 2 - - s

Note : 1. Power sequence for Source D-IC must follow the Case1 & 2.

※ Please refer to Appendix IV for more details.

2. VGH Odd signal should be started “High” status and VGH even & odd can not be “High at the
same time.

3. Power Off Sequence order is reverse of Power On Condition including Source D-IC.

4. GCLK On/Off Sequence

5. VDD_odd/even transition time should be within V_blank

6. In case of T6’, If there is no abnormal display, no problem

VGH
even/Odd

VST

GCLK1~6

Value

Min Typ Max

:GCLK3  GCLK2 GCLK1  GCLK6  GCLK5  GCLK4.

T3

T4

T5

T6

-

-

-

..

..

..

T6’

LED on

Ta= 25±2°C, fV=60Hz,

Unit Notes

ms

ms

ms 2

Ver. 1.0

14 /36

LC420EUG

Product Specification

4. Optical Specification

Optical characteristics are determined after the unit has been ‘ON’ and stable in a dark environment at 25±2°C.
The values are specified at distance 50cm from the LCD surface at a viewing angle of Φ and θ equal to 0 °.
FIG. 1 shows additional information concerning the measurement equipment and method.

Optical Stage(x,y)

LCD Module

Pritchard 880 or
equivalent

50cm

FIG. 9 Optical Characteristic Measurement Equipment and Method

Table 10. OPTICAL CHARACTERISTICS

Parameter Symbol

Contrast Ratio CR 1000 1400 - 1

Surface Luminance, white L

Luminance Variation

Response Time

Rising Tr -

δ

WH

WHITE

Falling Tf -

RED

Color Coordinates
[CIE1931]

Color Temperature 10,000 K

GREEN

BLUE

WHITE

Color Gamut

right(φ=0°) θr (x axis)

2D

(CR>10)

Viewing
Angle

3D

(CT≤10%)

3D Crosstalk 3D C/T 1 3 %

Gray Scale

left (φ=180°) θl (x axis)
up (φ=90°) θu (y axis)
down (φ=270°) θd (y axis)

up + down

up

down

θu (y axis)

+θd (y axis)

θu (y axis)

θd (y axis)

2D 290 360

3D 110 135 7

5P 1.3 3

Rx

Ry

Gx

Gy

Bx

By

Wx 0.279

Wy 0.292

Min Typ Max

Typ

-0.03

89 - -

89 - -

89 - -

89 - -

16 20 -

5

5

- - -

Ta= 25±2°C, VDD,H_VDD,VGH,VGL=typ, fV=60Hz,

BW=0.693GBPS, I

Value

8 12

F_Cathode

= 130mA (Typ)

Unit Note

2

cd/m

ms 4

10 14

0.635

0.340

0.316

0.603

0.156

0.057

68 %

Typ

+0.03

degree 5

degree

degree

degree

2

7

6

Ver. 1.0

15 /36

Product Specification

Note : 1. Contrast Ratio(CR) is defined mathematically as :

LC420EUG

Contrast Ratio =

Surface Luminance with all white pixels
Surface Luminance with all black pixels

It is measured at center 1-point.

2. Surface luminance is determined after the unit has been ‘ON’ and 1 Hour after lighting the

backlight in a dark environment at 25±2°C. Surface luminance is the luminance value at center
1-point across the LCD surface 50cm from the surface with all pixels displaying white.
For more information see the FIG. 2.

3. The variation in surface luminance , δ WHITE is defined as :
δ WHITE(5P) = Maximum(L

Where L

on1

to L

are the luminance with all pixels displaying white at 5 locations .

on5

on1,Lon2

, L

on3

, L

on4

, L

) / Minimum(L

on5

on1,Lon2

, L

on3

, L

on4

, L

on5

)

For more information, see the FIG. 2.

4. Response time is the time required for the display to transit from G(255) to G(0) (Rise Time, TrR)

and from G(0) to G(255) (Decay Time, TrD). For additional information, see the FIG. 11.

5. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are

determined for the horizontal or x axis and the vertical or y axis with respect to the z axis which
is normal to the LCD module surface. For more information, see the FIG. 12.

6. Gray scale specification

Gamma Value is approximately 2.2. For more information, see the Table 11.

7. 3D performance specification is expressed by 3D luminance, 3D Crosstalk and 3D viewing angle.

3D luminance and 3D crosstalk is measured at center 1-point.
For more information, see the FIG 13~16.

Table 11. GRAY SCALE SPECIFICATION

Gray Level Luminance [%] (Typ)

L0 0.071

L15 0.28

L31 1.05

L47 2.50

L63 4.69

L79 7.67

L95 11.47

L111 16.11

L127 21.64

L143 28.07

L159 35.43

L175 43.73

L191 52.99

L207 63.23

L223 74.47

L239 86.72

L255 100

Positive

Voltage

Negative

Voltage

Gray Level Gamma Ref.

L0 Gamma9

L1 Gamma8

L31 Gamma7

L63 Gamma6

L127 Gamma5

L191 Gamma4

L223 Gamma3

L255 Gamma1

L255 Gamma18

L223 Gamma16

L191 Gamma15

L127 Gamma14

L63 Gamma13

L31 Gamma12

L1 Gamma11

L0 Gamma10

Ver. 1.0

16 /36

Product Specification

Measuring point for surface luminance & measuring point for luminance variation.

H

A

③③③③②②②②

LC420EUG

V

①①①①

B

A : H / 4 mm

④④④④

FIG. 10 5 Points for Luminance Measure

Response time is defined as the following figure and shall be measured by switching the input signal for
“Black” ~ “White” and “White” ~ “Black”.

Tr

100

90

⑤⑤⑤⑤

Tf

B : V / 4 mm
@ H,V : Active Area

Ver. 1.0

Optical
Response

10

0

Black

White

FIG. 11 Response Time

White

Black

17 /36

Dimension of viewing angle range

LC420EUG

Product Specification

φ

= 180°, Left

φ

= 270°, Down

Normal

E

θ

φ

FIG. 12 Viewing Angle

Y

φ

= 90°, Up

φ

= 0°, Right

Ver. 1.0

18 /36

Product Specification

LC420EUG

LW-RW

LW-RB

LB-RW

LB-RB

(a) Test pattern image

< FIG.14. Positioning eyeglass >

2

6

4 5

7

1

9

3

8

3D display

(b) Measurement

position

< FIG.13. Measurement configuration>

Luminance

θ

Lum( LE or RE, test pattern, number )

Measurement through

Left or Right eyeglass

< FIG. 15. notation of luminance measurement >

LMS

Right or left eyeglass

( Circular polarizer )

(c) Setup

measurement

position

In order to measure 3D luminance, 3D crosstalk and 3D viewing angle, it need to be prepared as below;

1) Measurement configuration
4-Test pattern images. Refer to FIG 8.

-. LW-RW : White for left and right eye

-. LW-RB : White for left eye and Black for right eye

-. LB-RW : Black for left eye and white for right eye

-. LB-RB : Black for left eye and right eye
Image files where black and white lines are displayed on even or odd lines.
Luminance measurement system (LMS) with narrow FOV (field of view) is used. Refer to FIG 1.

2) Positioning Eyeglass (refer to appendix-VIII for standard specification of eyeglass)
Find angle of minimum transmittance.
This value would be provided beforehand or measured by the following steps;

(i) Test image (LB-RW) is displayed.
(ii) Left eyeglass are placed in front of LMS and luminance is measured,

rotating right eyeglass such as FIG 7. The notation for luminance measurement is “Lum(LE, LB-RW,1)”.

(iii) Find the angle where luminance is minimum.

* Following measurements should be performed at the angle of minimum transmittance of eyeglass.

Ver. 1.0

19 /36

Product Specification

3) Measurement of 3D luminance
(i) Test image ( LW-RW ) is displayed.
(ii) Left or right eyeglass are placed in front of LMS successively and

luminance is measured at center 1 point where the notation for luminance measurement is
“Lum(LE, LW-RW,1)” or “Lum(RE, LW-RW,1).

4) Measurement of 3D crosstalk
(i) Test image ( LB-RW, LW-RB and LB-RB ) is displayed.
(ii) Right or left eyeglass are placed in front of LMS successively and

luminance is measured for position 1.
with rotating LMS or sample vertically.

Lum(LE, LB-RW,1) - Lum(LE, LB-RB,1)
Lum(LE, LW-RB,1) - Lum(LE, LB-RB,1)

or

Lum(RE, LW-RB,1) - Lum(RE, LB-RB,1)
Lum(RE, LB-RW,1) - Lum(RE, LB-RB,1)

5) Measurement of 3D Viewing Angle

3D viewing angle is the angle at which the 3D crosstalk is under 10%. The angles are

determined for the vertical or y axis with respect to the z axis which is normal to the LCD
module surface and measured for position 1. For more information , see the Fig 9

LC420EUG

Ver. 1.0

y axis

LB-RW LW-RB

LCM

LB-RB

(a) Test pattern image

(b) Measurement of 3D viewing angle (up/down)

< FIG.16. Measurement of 3D crosstalk and 3D viewing angle >

Φyu(up)

Φyd (down)

S

M

L

z axis

L

M

S

LMS

20 /36

Product Specification

5. Mechanical Characteristics

Table 12 provides general mechanical characteristics.

Table 12. MECHANICAL CHARACTERISTICS

Item Value

LC420EUG

Outline Dimension

Bezel Area

Active Display Area

Weight

Horizontal

Vertical

Depth

Horizontal

Vertical

Horizontal 930.24 mm

Vertical 523.26 mm

8.5 Kg (Typ.), 8.9 kg (Max.)

950.0 mm

554.6 mm

9.4(B)/16.9(D) mm

950.0 mm

537.1 mm

Note : Please refer to a mechanical drawing in terms of tolerance at the next page.

Outline dimension values are included side sealing thickness.

Ver. 1.0

21 /36

[ FRONT VIEW ]

LC420EUG

Product Specification

Set : Top

Ver. 1.0

Set : Down

22 /36

[ REAR VIEW ]

LC420EUG

Product Specification

Set : Top

Ver. 1.0

Set : Down

23 /36

Product Specification

6. Reliability

Table 13. ENVIRONMENT TEST CONDITION

No. Test Item Condition

1 High temperature storage test Ta= 60°C 240h

2 Low temperature storage test Ta= -20°C 240h

3 High temperature operation test Ta= 50°C 50%RH 240h

4 Low temperature operation test Ta= 0°C 240h

Wave form : random
Vibration level : 0.5Grms
Bandwidth : 10-300Hz
Duration : X,Y,Z,

Each direction per 10 min

Shock level : 10Grms
Waveform : half sine wave, 11ms
Direction : ±X, ±Y, ±Z

One time each direction

5

6

Vibration test
(non-operating)

Shock test
(non-operating)

LC420EUG

7 Humidity condition Operation Ta= 40 °C ,90%RH

Altitude operating

8

storage / shipment

0 - 15,000 ft
0 - 40,000 ft

Max 6kgf (Test Method : Note 2)Panel Push Test9

Note 1 : Before and after Reliability test, LCM should be operated with normal function.

Note 2 : Panel Push Test Method

Ver. 1.0

24 /36

Product Specification

7. International Standards

7-1. Safety

a) UL 60065, Underwriters Laboratories Inc.

Audio, Video and Similar Electronic Apparatus - Safety Requirements.

b) CAN/CSA C22.2 No.60065:03, Canadian Standards Association.

Audio, Video and Similar Electronic Apparatus - Safety Requirements.

c) EN 60065, European Committee for Electrotechnical Standardization (CENELEC).

Audio, Video and Similar Electronic Apparatus - Safety Requirements.

d) IEC 60065, The International Electrotechnical Commission (IEC).

Audio, Video and Similar Electronic Apparatus - Safety Requirements.

(Including report of IEC60825-1:2001 clause 8 and clause 9)

Notes

1. Laser (LED Backlight) Information

Class 1M LED Product

IEC60825-1 : 2001

Embedded LED Power (Class 1M)

LC420EUG

2. Caution
: LED inside.

Class 1M laser (LEDs) radiation when open.
Do not open while operating.

7-2. EMC

a) ANSI C63.4 “American National Standard for Methods of Measurement of Radio-Noise

Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz.”
American National Standards Institute (ANSI), 2003.

b) CISPR 22 “Information technology equipment – Radio disturbance characteristics – Limit and

methods of measurement." International Special Committee on Radio Interference
(CISPR), 2005.

c) CISPR 13 “Sound and television broadcast receivers and associated equipment – Radio disturbance

characteristics – Limits and method of measurement." International Special Committee on Radio
Interference (CISPR), 2006.

7-3. Environment

a) RoHS, Directive 2002/95/EC of the European Parliament and of the council of 27 January 2003

Ver. 1.0

25 /36

8. Packing

8-1. Information of LCM Label

a) Lot Mark

A B C D E F G H I J K L M

A,B,C : SIZE(INCH) D : YEAR
E : MONTH F ~ M : SERIAL NO.

Note

1. YEAR

Year

Product Specification

201320122011

2014E2015

2016G2017H2018J2019

LC420EUG

2020

Mark

CBA

D

F

2. MONTH

Month

Mark

Apr5May

4

Jun7Jul8Aug9Sep

6

b) Location of Lot Mark

Serial NO. is printed on the label. The label is attached to the backside of the LCD module.
This is subject to change without prior notice.

8-2. Packing Form

a) Package quantity in one Pallet : 16 pcs

b) Pallet Size : 1140 mm(W) X 990 mm(D) X 790mm(H)

K

Oct

A

Nov

B

DecMarFebJan

C321

Ver. 1.0

26 /36

LC420EUG

Product Specification

9. Precautions

Please pay attention to the followings when you use this TFT LCD module.

9-1. Mounting Precautions

(1) You must mount a module using specified mounting holes (Details refer to the drawings).
(2) You should consider the mounting structure so that uneven force (ex. Twisted stress) is not applied to

the module. And the case on which a module is mounted should have sufficient strength so that external

force is not transmitted directly to the module.

(3) Please attach the surface transparent protective plate to the surface in order to protect the polarizer.

Transparent protective plate should have sufficient strength in order to the resist external force.
(4) You should adopt radiation structure to satisfy the temperature specification.
(5) Acetic acid type and chlorine type materials for the cover case are not desirable because the former

generates corrosive gas of attacking the polarizer at high temperature and the latter causes circuit break
by electro-chemical reaction.

(6) Do not touch, push or rub the exposed polarizers with glass, tweezers or anything harder than HB

pencil lead. And please do not rub with dust clothes with chemical treatment.

Do not touch the surface of polarizer for bare hand or greasy cloth.(Some cosmetics are detrimental

to the polarizer.)
(7) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials like

chamois soaks with petroleum benzine. Normal-hexane is recommended for cleaning the adhesives
used to attach front / rear polarizers. Do not use acetone, toluene and alcohol because they cause
chemical damage to the polarizer

(8) Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer causes

deformations and color fading.

(9) Do not open the case because inside circuits do not have sufficient strength.

9-2. Operating Precautions

(1) Response time depends on the temperature.(In lower temperature, it becomes longer.)
(2) Brightness depends on the temperature. (In lower temperature, it becomes lower.)

And in lower temperature, response time(required time that brightness is stable after turned on)
becomes longer

(3) Be careful for condensation at sudden temperature change. Condensation makes damage to polarizer or

electrical contacted parts. And after fading condensation, smear or spot will occur.
(4) When fixed patterns are displayed for a long time, remnant image is likely to occur.
(5) Module has high frequency circuits. Sufficient suppression to the electromagnetic interference shall be

done by system manufacturers. Grounding and shielding methods may be important to minimized the
interference.

(6) Please do not give any mechanical and/or acoustical impact to LCM. Otherwise, LCM can’t be operated

its full characteristics perfectly.

(7) A screw which is fastened up the steels should be a machine screw.

(if not, it can causes conductive particles and deal LCM a fatal blow)

(8) Please do not set LCD on its edge.

Ver. 1.0

27 /36

LC420EUG

Product Specification

9-3. Electrostatic Discharge Control

Since a module is composed of electronic circuits, it is not strong to electrostatic discharge. Make certain that
treatment persons are connected to ground through wrist band etc. And don’t touch interface pin directly.

9-4. Precautions for Strong Light Exposure

Strong light exposure causes degradation of polarizer and color filter.

9-5. Storage

When storing modules as spares for a long time, the following precautions are necessary.

(1) Store them in a dark place. Do not expose the module to sunlight or fluorescent light. Keep the temperature

between 5°C and 35°C at normal humidity.

(2) The polarizer surface should not come in contact with any other object.

It is recommended that they be stored in the container in which they were shipped.
(3) Storage condition is guaranteed under packing conditions.
(4) The phase transition of Liquid Crystal in the condition of the low or high storage temperature will be

recovered when the LCD module returns to the normal condition

9-6. Operating condition guide

(1) The LCD product should be operated under normal conditions. Normal condition is defined as below;

- Temperature : 5 ~ 40 ℃, normal humidity.

- Display pattern : continually changing pattern (Not stationary)

(2) If the product will be used in extreme conditions such as high temperature, display patterns or operation

time etc..,
It is strongly recommended to contact LGD for Qualification engineering advice. Otherwise, its reliability
and function may not be guaranteed. Extreme conditions are commonly found at Airports, Transit Stations,
Banks, Stock market, and Controlling systems. The LCD product should be applied by global standard

environment. (refer ETSI EN 300, IEC 60721)

Ver. 1.0

28 /36

# APPENDIX-I

■■■■ Pallet Ass’y

LC420EUG

Product Specification

Ver. 1.0

NO. DESCRIPTION MATERIAL

1 LCD Module 42” LCD

2 BAG AL BAG

3 TAPE MASKING 20MMX50M

4 PALLET Plywood 1140X990X125.5mm

5 PACKING,BOTTOM EPS

6 PACKING,TOP EPS

7 ANGLE,PACKING PAPER

8 BAND PP

9 ANGLE.COVER PAPER

10 BAND,CLIP STEEL or PP

11 LABEL YUPO 80G 100X70

29 /36

# APPENDIX- II-1

■ LCM Label

LC420EUG

Product Specification

Model

LC420EUG
(PE)(F1)

UL, TUV Mark

LGD Logo

■■■■ Serial No. (See CAS page 26 for more information)

1 2 3 4 5 6 7 9 10 11 12

Year

Inch

Month

8

13

Serial No.

CHINA

Serial No.

Origin

Ver. 1.0

M Ass’y Factory code

30 /36

# APPENDIX- II-2

LC420EUG

Product Specification

■ Pallet Label

LC420EUG

PEF1

16 PCS

MADE IN CHINA

001/01-01

XXXXXXXXXXXXX XXX

RoHS Verified

Ver. 1.0

31 /36

# APPENDIX-III

LC420EUG

Product Specification

Ver. 1.0

32 /36

# APPENDIX- IV

■■■■ Source D-IC Power Sequence

LC420EUG

Product Specification

Ver. 1.0

33 /36

Product Specification

# APPENDIX-V

■■■■ Local Dimming Block Pin Matching

LC420EUG

L1

L2

L3

R2R1

R3

T-con

8  1

L

L

Front

L_CNT

87654321

8  1

R_CNT

87654321

Rear

LED Driver CNT

R

Pin No

Output L_CNT

(8pin)

Output R_CNT

(8pin)

1 L1 Cathode Anode_R

2 L2 Cathode N.C

3 L3 Cathode N.C

4 N.C N.C

5 N.C N.C

6 N.C R1 Cathode

7 N.C R2 Cathode

R

8 Anode_L R3 Cathode

L1

L1

L1L1

Ver. 1.0

L2

L2

L2L2

81

L3

L3

L3L3

T-con

81

R1

R1

R1R1

R2

R2

R2R2

R3

R3

R3R3

34 /36

# APPENDIX-VI

■■■■ EPI Input Protocol

1. Clock Training Pattern input mode

. Clock Training Pattern (PhaseⅠ)

LC420EUG

Product Specification

Bit 0 1 2 … 11 12 13 25 26 27

CLK

Bit 0 ~ Bit 13 Bit 14 ~ Bit 27

2. Control Signal input mode

.Control Data (PhaseⅡ)

Bit 0 1 2 3 4 5 25 26 27

CLK

Bit 0 Bit 1 Bit 2 ~ 25 Bit 26 Bit 27

H H Control Data L L

C0 C1 C2

14 15 16

H L

…

1UI

C3

…

C22

C23

CLK

CLK C0

C0

3. Display Data input mode

. RGB Data (PhaseⅢ)

Bit 0 1 2 3 4 23 24 25 26 27

CLK

Bit 0 Bit 1 Bit 2 ~ 25 Bit 26 Bit27

H H R : Bit 2 ~ 9 / G : Bit 10 ~17 / B : Bit 18 ~ 25 L L

Ver. 1.0

R0 R1 R2

…

B5

B6

B7

CLK CLK R0

35 /36

Product Specification

# APPENDIX- VII

■■■■ Standard specification of Eyeglasses

This is recommended data of Eyeglasses for LC420EUG-PEF1 model. (details refer to table)

For each item, depending on the eyeglass manufacturer tolerances may occur, this tolerance can

affect 3D performance. (3D Crosstalk, 3D luminance, 3D viewing angle)

<Table. Standard specification of Eyeglasses>

Design item of Eyeglasses Left Right Remark

LC420EUG

Optical

axis

Retardation

value

a) Slow axis of retarder

b) Transmission axis of polarizer

Retarder 125nm @550nm

※Recommended polarizer

Polarization efficiency: more than 99.90%

90˚˚˚˚

Bottom

Bottom

POL

POL

0˚˚˚˚

0˚˚˚˚0˚˚˚˚

Cell Patterned

Cell Patterned

Top

Top

POL

POL

90˚˚˚˚90˚˚˚˚

Patterned

Patterned

retarder

retarder

retarder

retarder

45˚˚˚˚

45˚˚˚˚

45˚˚˚˚

-45
135

135˚˚˚˚

135˚˚˚˚

135˚˚˚˚

45

-45˚ 45˚

0˚ 0˚

+λλλλ/4

45

˚˚˚˚

˚˚˚˚

˚˚˚˚

˚˚˚˚45˚˚˚˚

-λλλλ/4

-λλλλ/4

+λλλλ/4

Left eye

Left eyeLeft eye

Refer to

drawing

Retarder

Retarder

Polarizer

Polarizer

Right eye

Right eyeRight eye

Direction from viewer

a) Slow axis of retarder

a) Slow axis of retarder

b) Transmission axis of polarizer

b) Transmission axis of polarizer

Ver. 1.0

-45˚˚˚˚

-45˚˚˚˚

Left Right

Left Right

(b) Configuration of Eyeglasses

<Drawing. Information of optical axis>

45˚˚˚˚

45˚˚˚˚

0˚˚˚˚

0˚˚˚˚

Left Right

Left Right

0˚˚˚˚

0˚˚˚˚

36 /36