LG Display LD550EUD-UFA2 Specification

( ● ) Preliminary Specification
( ) Final Specification

Title 55.0” WUXGA TFT LCD

LD550EUD

Product Specification

SPECIFICATION

FOR

APPROVAL

BUYER General

MODEL

APPROVED BY

/

/

/

SIGNATURE

DATE

SUPPLIER LG Display Co., Ltd.

*MODEL LD550EUD

SUFFIX UFA2 (RoHS Verified)

APPROVED BY

O. H. Lee

/ Team Leader

REVIEWED BY

/ Project Leader

PREPARED BY

J.K. Kim

K. B. Park

/ Engineer

SIGNATURE

DATE

Please return 1 copy for your confirmation with

your signature and comments.

Ver. 1.0

PD Product Design Dept.

LG Display Co., Ltd

Product Specification

CONTENTS

LD550EUD

Number ITEM

COVER
CONTENTS

RECORD OF REVISIONS 2

1 GENERAL DESCRIPTION
2 ABSOLUTE MAXIMUM RATINGS
3 ELECTRICAL SPECIFICATIONS

3-1 ELECTRICAL CHARACTERISTICS
3-2 INTERFACE CONNECTIONS

3-3 SIGNAL TIMING SPECIFICATIONS
3-4 SIGNAL TIMING WAVEFORMS 12
3-5 COLOR DATA REFERENCE

3-6 POWER SEQUENCE

4 OPTICAL SPECIFICATIONS
5 MECHANICAL CHARACTERISTICS
6 RELIABILITY

Page

0
1

3
4
5
5
7
9

15
16
18
22
25

7 INTERNATIONAL STANDARDS

7-1 SAFETY
7-2 EMC 26

7-3 ENVIRONMENT 26

8 PACKING

8-1 Information of LCM Label

8-2 PACKING FORM

9 PRECAUTIONS 28
9-1 MOUNTING PRECAUTIONS 28
9-2 OPERATING PRECAUTIONS 28
9-3 ELECTROSTATIC DISCHARGE CONTROL 29
9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE 29
9-5 STORAGE 29
9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM 29
9-7 APPROPRATE CONDITION FOR PUBLIC DISPLAY 29

Ver. 1.0

26
26

27
27
27

1 /39

Product Specification

RECORD OF REVISIONS

Revision No. Revision Date Page Description

0.1 Oct, 5, 2012 - Preliminary Specification (First Draft)

0.2 Oct, 23, 2012 25 Shock level 15G20G

LD550EUD

0.3 Dec, 13, 2012 38

1.0 May, 13, 2013 - Final specification

TCON Pull up/down resister value change
(Pull up 65㏀  93㏀, Pull down 50㏀  95㏀)

Ver. 1.0

2 /39

LD550EUD

Product Specification

1. General Description

The LD550EUD is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)
backlight system. The matrix employs a-Si Thin Film Transistor as the active element.
It is a transmissive display type which is operating in the normally black mode. It has a 54.64 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 10-bit gray scale signal for each dot.
Therefore, it can present a palette of more than 1.06Bilion colors.
It has been designed to apply the 10-bit 4-port LVDS interface.
It is intended to support Public Display where high brightness, super wide viewing angle, high color gamut,
high color depth and fast response time are important.

EPI(RGB)

Control
Signals

Power Signals

G1

G1080

Source Driver Circuit

S1 S1920

TFT - LCD Panel

(1920 × RGB × 1080 pixels)

[Gate In Panel]

LVDS

2Port

LVDS

2Port

LVDS
Select

L-DIM
Enable

Bit
Select

+12.0V

CN2

(41pin)

CN1

(51pin)

LVDS 3,4

LVDS 1,2

Option
signal

I2C

EEPROM

SCL

SDA

Timing Controller

LVDS Rx + ODC + DGA

Integrated

Power Circuit

Block

EXT_PWM

+24.0V, GND, On/Off

LED Driver

Back Light Assembly

General Features

Active Screen Size 54.64 inches(1387.80mm) diagonal
Outline Dimension
Pixel Pitch 0.630 mm x 0.630 mm
Pixel Format 1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement
Color Depth 10bit, 1.06 Bilion colors
Luminance, White 700 cd/m2 (Center 1point ,Typ.)
Viewing Angle (CR>10) Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))
Power Consumption Total 117.2W (Typ.) [Logic= 8.0W, LED Driver=109.2W(ExtVbr_B=100% )]
Weight 17.5Kg (Typ.)
Display Mode Transmissive mode, Normally black
Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer (Haze 10%)
Possible Display Type Landscape and Portrait Enabled

1239.2(H) × 710.0(V) × 10.8(B) / 23.8(D) mm (Typ.)

Ver. 1.0

3 /39

LD550EUD

Product Specification

2. Absolute Maximum Ratings

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

Table 1. ABSOLUTE MAXIMUM RATINGS

Parameter Symbol

Unit Note

Min Max

LCD Circuit VLCD -0.3 +14.0 VDC

Power Input Voltage

Driver VBL -0.3 + 27.0 VDC

Value

ON/OFF VOFF / VON -0.3 +5.5 VDC

1

Driver Control Voltage

Brightness EXTVBR-B -0.3 +5.5 VDC
T-Con Option Selection Voltage VLOGIC
Operating Temperature TOP 0 +50

-0.3 +4.0 VDC
°C

2,3

Storage Temperature TST -20 +60

Panel Front Temperature TSUR

- +68

°C

°C

4

Operating Ambient Humidity HOP 10 90 %RH

2,3

Storage Humidity HST 10 90 %RH

Notes

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

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%

Ver. 1.0

Wet Bulb
Temperature [°C]

20

10

0

10 20 30 40 50 60 70 80 0 -20
Dry Bulb Temperature [°C]

30

40

50

60

60%

40%

10%

Storage

Operation

Humidity [(%)RH]

4 /39

LD550EUD

Product Specification

3. Electrical Specifications
3-1. Electrical Characteristics

It requires two power inputs. One is employed to power for the LCD circuit. The other Is used for the LED
backlight and LED Driver circuit.

Table 2. ELECTRICAL CHARACTERISTICS

Parameter Symbol

Min Typ Max

Circuit :
Power Input Voltage VLCD 10.8 12.0 13.2 VDC

Power Input Current ILCD

Power Consumption PLCD - 8 10.4 Watt 1
Rush current IRUSH - - 5.0 A 3

- 665 865 mA 1

- 937 1218 mA 2

Value

Unit Note

Notes

1. The specified current and power consumption are under the V

=12.0V, Ta=25  2°C, fV=120Hz

LCD

condition, and mosaic pattern(8 x 6) is displayed and fV is the frame frequency.

2. The current is specified at the maximum current pattern.

3. The duration of rush current is about 2ms and rising time of power input is 0.5ms (min.).

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

White : 1023 Gray
Black : 0 Gray

Ver. 1.0

Mosaic Pattern(8 x 6)

5 /39

Product Specification

Table 3. ELECTRICAL CHARACTERISTICS (Continue)

LD550EUD

Parameter Symbol

Unit notes

Min Typ Max

LED Driver :

Values

Power Supply Input Voltage VBL
Power Supply Input Current IBL

22.8 24.0 25.2 Vdc 1

-

4.55

5.0

A 1

VBL = 22.8V

Power Supply Input Current (In-Rush) In-rush - - 6.7 A

Power Consumption PBL

-

109.2 120

W 1

ExtV

BR-B

On V on 2.5 - 5.0 Vdc

Input Voltage for

Control System

Signals

On/Off

Brightness Adjust ExtV

ExtV

Frequency

BR-B

Pulse Duty Level
(PWM)

Off V off -0.3 0.0 0.7 Vdc

5 - 100 %

BR-B

1 - 100 %

PAL 100 Hz 3

NTSC 120 Hz 3

High Level 2.5 - 5.0

Low Level 0.0 - 0.7

Vdc
Vdc

On Duty

HIGH : on duty

LOW : off duty

LED :
Life Time 50,000 60,000 - Hrs 2

= 100%

4

6

notes :

1. Electrical characteristics are determined after the unit has been ‘ON’ and stable for approximately 60
minutes at 25±2°C. The specified current and power consumption are under the typical supply Input voltage
24Vand VBR (ExtVBR-B : 100%), it is total power consumption.

2. The life time (MTTF) is determined as the time which luminance of the LED is 50% compared to that of initial
value at the typical LED current (ExtVBR-B :100%) on condition of continuous operating in LCM state at
25±2°C.

3. LGD recommend that the PWM freq. is synchronized with Two time harmonic of V_sync signal of system.
Though PWM frequency is over 120Hz (max 252Hz), function of LED Driver is not affected.

4. The duration of rush current is about 200ms. This duration is applied to LED on time.

5. Even though inrush current is over the specified value, there is no problem if I2T spec of fuse is satisfied.

6. ExtV
After Driver ON signal is applied, ExtV

signal have to input available duty range and sequence.

BR-B

After that, ExtV

1% and 100% is possible

BR-B

should be sustained from 5% to 100% more than 500ms.

BR-B

For more information, please see 3-6-2. Sequence for LED Driver.

Ver. 1.0

6 /39

LD550EUD

Product Specification

3-2. Interface Connections

This LCD module employs two kinds of interface connection, 51-pin connector is used for the module
electronics and 14-pin connector is used for the integral backlight system.

3-2-1. LCD Module

- LCD Connector(CN1): FI-RE51S-HF(manufactured by JAE) or GT05P-51S-H38(manufactured by LSM) or
IS050-C51B-C39(manufactured by UJU)

- Mating Connector : FI-R51HL(JAE) or compatible

Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION

No Symbol Description No Symbol Description

1
2
3
4
5
6
7
8
9

10
11 GND

12 R1AN
13 R1AP
14 R1BN
15
16 R1CN
17 R1CP
18 GND
19 R1CLKN
20
21 GND
22 R1DN
23 R1DP
24 R1EN

25 R1EP
26

notes

NC
NC
NC
NC
NC
NC

LVDS Select

NC
NC
NC

R1BP

R1CLKP

NC or GND

1. All GND (ground) pins should be connected together to the LCD module’s metal frame.

2. All VLCD (power input) pins should be connected together.

3. All Input levels of LVDS signals are based on the EIA 644 Standard.

4. #1~#6 & #8~#9 NC (No Connection): These pins are used only for LGD (Do not connect)

5. LVDS pin (pin No. #24,25,40,41) are used for 10Bit(D) of the LCD module.
If used for 8Bit(R), these pins are no connection.

6. Specific pin No. #44 is used for “No signal detection” of system signal interface.
It should be GND for NSB (No Signal Black) while the system interface signal is not.
If this pin is “H”, LCD Module displays AGP (Auto Generation Pattern).

No Connection (notes 4)
No Connection (notes 4)
No Connection (notes 4)
No Connection (notes 4)
No Connection (notes 4)
No Connection (notes 4)

‘H’ =JEIDA , ‘L’ or NC = VESA
No Connection (notes 4)

No Connection (notes 4)
No Connection (notes 4)

Ground
FIRST LVDS Receiver Signal (A-)

FIRST LVDS Receiver Signal (A+)
FIRST LVDS Receiver Signal (B-)
FIRST LVDS Receiver Signal (B+)
FIRST LVDS Receiver Signal (C-)
FIRST LVDS Receiver Signal (C+)

Ground
FIRST LVDS Receiver Clock Signal(-)

FIRST LVDS Receiver Clock Signal(+)
Ground

FIRST LVDS Receiver Signal (D-)
FIRST LVDS Receiver Signal (D+)
FIRST LVDS Receiver Signal (E-)

FIRST LVDS Receiver Signal (E+)
No Connection or Ground

27

Bit Select
28
29
30
31
32
33
34
35
36
37
38
39

40 R2EN
41 R2EP
42
43
44
45
46

47
48
49
50
51

- - -

R2AN
R2AP
R2BN

R2BP

R2CN

R2CP

GND
R2CLKN
R2CLKP

GND

R2DN

R2DP

NC or GND
NC or GND

GND Ground (notes 6)

GND Ground

GND Ground

NC No connection
VLCD Power Supply +12.0V
VLCD Power Supply +12.0V
VLCD Power Supply +12.0V
VLCD Power Supply +12.0V

‘H’ or NC= 10bit(D) , ‘L’ = 8bit
SECOND LVDS Receiver Signal (A-)

SECOND LVDS Receiver Signal (A+)
SECOND LVDS Receiver Signal (B-)

SECOND LVDS Receiver Signal (B+)
SECOND LVDS Receiver Signal (C-)

SECOND LVDS Receiver Signal (C+)
Ground

SECOND LVDS Receiver Clock Signal(-)
SECOND LVDS Receiver Clock Signal(+)

Ground
SECOND LVDS Receiver Signal (D-)

SECOND LVDS Receiver Signal (D+)
SECOND LVDS Receiver Signal (E-)
SECOND LVDS Receiver Signal (E+)

No Connection or Ground
No Connection or Ground

Ver. 1.0

7 /39

LD550EUD

Product Specification

-LCD Connector (CN2) : FI-RE41S-HF(manufactured by JAE) or GT05P-41S-H38(manufactured by LSM)
or IS050-C41B-C39(manufactured by UJU)

- Mating Connector : FI-RE41HL or compatible

Table 4-2. MODULE CONNECTOR(CN2) PIN CONFIGURATION

No Symbol Description No Symbol Description

1
2
3
4 NC
5
6
7
8

9
10
11
12
13 RB3P
14
15
16
17
18 RCLK3P
19
20
21

NC
NC
NC

NC
NC
NC
NC

GND
RA3N
RA3P
RB3N

RC3N
RC3P

GND

RCLK3N

GND
RD3N
RD3P

No connection 22
No connection 23
No connection 24 GND Ground

No connection
No connection

No connection 27
No connection 28
No connection 29 RB4P

Ground
THIRD LVDS Receiver Signal (A-)

THIRD LVDS Receiver Signal (A+)
THIRD LVDS Receiver Signal (B-)
THIRD LVDS Receiver Signal (B+)
THIRD LVDS Receiver Signal (C-)
THIRD LVDS Receiver Signal (C+)

Ground
THIRD LVDS Receiver Clock Signal(-)

THIRD LVDS Receiver Clock Signal(+)
Ground

THIRD LVDS Receiver Signal (D-)
THIRD LVDS Receiver Signal (D+)

25 GND Ground
26

30
31
32
33
34 RCLK4P
35
36
37
38
39
40 GND Ground
41 GND Ground

-

RE3N
RE3P

RA4N
RA4P
RB4N

RC4N
RC4P

GND

RCLK4N

GND
RD4N
RD4P
RE4N
RE4P

THIRD LVDS Receiver Signal (E-)
THIRD LVDS Receiver Signal (E+)

FORTH LVDS Receiver Signal (A-)
FORTH LVDS Receiver Signal (A+)
FORTH LVDS Receiver Signal (B-)
FORTH LVDS Receiver Signal (B+)
FORTH LVDS Receiver Signal (C-)
FORTH LVDS Receiver Signal (C+)

Ground
FORTH LVDS Receiver Clock Signal(-)

FORTH LVDS Receiver Clock Signal(+)
Ground

FORTH LVDS Receiver Signal (D-)
FORTH LVDS Receiver Signal (D+)
FORTH LVDS Receiver Signal (E-)
FORTH LVDS Receiver Signal (E+)

Note : 1. All GND (ground) pins should be connected together to the LCD module’s metal frame.

2. LVDS pin (pin No. #22,23,38,39) are used for 10Bit(D) of the LCD module.
If used for 8Bit(R), these pins are no connection.

CN1 CN2

#1 #51 #1 #41

CN1 CN2

#1 #51

#1 #41

Rear view of LCM

Ver. 1.0

8 /39

Product Specification

3-2-2. Backlight Module

Master

-LED Driver Connector
: 20022WR - H14B2(Yeonho) or Compatible

- Mating Connector
: 20022HS - 14B2 (Yeonho) or Compatible

Table 5-1. LED DRIVER CONNECTOR PIN CONFIGURATION

Pin No Symbol Description Note

LD550EUD

1
2
3
4
5
6
7
8

9
10
11
12

13
14

VBL Power Supply +24.0V
VBL Power Supply +24.0V
VBL Power Supply +24.0V
VBL Power Supply +24.0V

VBL Power Supply +24.0V
GND
GND
GND
GND
GND

Status

ON/OFF

V

NC Don’t care

EXTVBR-B External PWM 3

Backlight Ground
Backlight Ground
Backlight Ground
Backlight Ground
Backlight Ground
Back Light Status 2
Backlight ON/OFF control 4

1

Notes :1. GND should be connected to the LCD module’s metal frame.

2. Normal : Low (under 0.7V) / Abnormal : Open

3. High : on duty / Low : off duty, Pin#14 can be opened. ( if Pin #14 is open , EXTVBR-B is 100% )

4. Each impedance of pin #12 and 14 is over 50 [KΩ] .

◆ Rear view of LCM

1

Ver. 1.0

◆ Status

PCB

14

1

…

14

…

<Master>

9 /39

LD550EUD

Product Specification

3-3. Signal Timing Specifications

Table 6 shows the signal timing required at the input of the LVDS transmitter. All of the interface signal
timings should be satisfied with the following specification for normal operation.

Table 6. TIMING TABLE (DE Only Mode)

ITEM Symbol Min Typ Max Unit notes

Horizontal

Vertical

Frequency

Display

Period

Blank tHB 40 70 200 tCLK 1

Total tHP 520 550 680 tCLK

Display

Period

Blank tVB

Total tVP

ITEM Symbol Min Typ Max Unit notes

DCLK fCLK 66.97 74.25 78.00 MHz

Horizontal fH 121.8 135 140 KHz 2

Vertical fV

tHV 480 480 480 tCLK 1920 / 4

tVV 1080 1080 1080 Lines

20

(228)

1100

(1308)

108
(95)

45

(270)
1125

(1350)

120

(100)

86

(300)
1166

(1380)

122

(104)

Lines 1

Lines

Hz

NTSC
(PAL)

2

Note: 1. The input of HSYNC & VSYNC signal does not have an effect on normal operation (DE Only Mode).
If you use spread spectrum of EMI, add some additional clock to minimum value for clock margin.

2. The performance of the electro-optical characteristics may be influenced by variance of the vertical
refresh rate and the horizontal frequency

3. Spread Spectrum Rate (SSR) for 50KHz ~ 100kHz Modulation Frequency(FMOD) is calculated by
(7 – 0.06*Fmod), where Modulation Frequency (FMOD) unit is KHz.
LVDS Receiver Spread spectrum Clock is defined as below figure

※ Timing should be set based on clock frequency.

Ver. 1.0

10 /39

LD550EUD

Product Specification

※ Please pay attention to the followings when you set Spread Spectrum Rate(SSR) and Modulation
Frequency(FMOD)

1. Please set proper Spread Spectrum Rate(SSR) and Modulation Frequency (FMOD) of TV system
LVDS output.

2. Please check FOS after you set Spread Spectrum Rate(SSR) and Modulation Frequency(FMOD)
to avoid abnormal display. Especially, harmonic noise can appear when you use Spread Spectrum

under FMOD 30 KHz.

Ver. 1.0

11 /39