0.2Jan, 25, 20133, 6Changed Power Consumption (LED Driver)
LC550DUN
Ver. 0.2
2 /39
LC550DUN
Product Specification
1. General Description
The LC550EUN 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 8-bit gray scale signal for each dot.
Therefore, it can present a palette of more than 16.7Milion colors.
It has been designed to apply the 8-bit 2-port LVDS interface.
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.
LVDS
EEPROM
EPI(RGB)
Source Driver Circuit
2Port
LVDS
Select
+12.0V
CN1
(51pin)
LVDS 1,2
Option
signal
I2C
SCL
SDA
Timing Controller
LVDS Rx + DGA
Integrated
Power Circuit
G1
Control
Signals
G1080
Power Signals
S1S1920
TFT - LCD Panel
(1920 × RGB × 1080 pixels)
[Gate In Panel]
Block
ExtVBR-B
+24.0V, GND, On/Off
LED Driver
Back light Assembly
General Features
Active Screen Size54.64 inches(1387.80mm) diagonal
Outline Dimension
Pixel Pitch0.630 mm x 0.630 mm
Pixel Format1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement
Color Depth8bit, 16.7 Million colors
Luminance, White300 cd/m2 (Center 1point ,Typ.)
Viewing Angle (CR>10)Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))
Power ConsumptionTotal 101.3W (Typ.) [Logic= 6.8W, LED Driver=94.5W(ExtVBR_B=100% )]
Weight14.1Kg(Typ.)
Display ModeTransmissive mode, Normally black
Surface TreatmentHard coating(2H), Anti-glare treatment of the front polarizer (Haze 1%(Typ.))
1237.4(H) × 713.8(V) × 42.0(D) mm(Typ.)
Ver. 0.2
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LC550DUN
Product Specification
2. Absolute Maximum Ratings
The following items are maximumvalueswhich, ifexceeded, may cause faultyoperation or permanentdamage
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%
1
2,3
4
2,3
Ver. 0.2
Wet Bulb
Temperature [°C]
20
10
0
10203040506070800-20
Dry Bulb Temperature [°C]
30
40
50
60
60%
40%
10%
Storage
Operation
Humidity [(%)RH]
4 /39
LC550DUN
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
Value
ParameterSymbol
MinTypMax
Circuit :
Power Input VoltageVLCD10.812.013.2VDC
-564733mA1
Power Input CurrentILCD
-8481102mA2
Unitnotes
Power ConsumptionPLCD6.88.8Watt1
Rush currentIRUSH--5.0A3
1. The specified current and power consumption are under the V
=12.0V, Ta=25 2°C, fV=60Hz
LCD
condition, and mosaic pattern(8 x 6) is displayed and fVis 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 : 255 Gray
Black : 0 Gray
Ver. 0.2
Mosaic Pattern(8 x 6)
5 /39
Product Specification
Table 3. ELECTRICAL CHARACTERISTICS (Continue)
LC550DUN
ParameterSymbol
LED Driver :
Power Supply Input VoltageVBL22.824.025.2Vdc1
Power Supply Input Current IBL-3.934.73A1
Power Supply Input Current (In-Rush)In-rush--7A
Power ConsumptionPBL-94.5108W1
OnV on2.5-5.0Vdc
OffV off-0.30.00.7Vdc
BR-B
PAL100Hz3
Frequency
NTSC120Hz3
High Level2.5-5.0
Low Level0.0-0.7
Input Voltage for
Control System
Signals
On/Off
Brightness AdjustExtV
ExtV
BR-B
Pulse Duty Level
(PWM)
MinTypMax
Values
Unitnotes
5-100%
1-100%
Vdc
Vdc
VBL = 22.8V
ExtV
= 100%
BR-B
On Duty
HIGH : on duty
LOW : off duty
4
6
LED :
Life Time30,00050,000Hrs2
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
After that, ExtV
signal have to input available duty range and sequence.
BR-B
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. 0.2
6 /39
LC550DUN
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)
25NCNo connection51VLCDPower Supply +12.0V
26NC or GNDNo Connection or Ground---
notes
GND
R1AN
R1AP
R1BN
R1CN
R1CP
GND
R1CLKN
GND
R1DN
R1DP
1. All GND(ground) pins should be connected together to the LCD module‟s metal frame.
Ground37
FIRST LVDS Receiver Signal (A-)38
FIRST LVDS Receiver Signal (A+)39
FIRST LVDS Receiver Signal (B-)40NCNo connection
FIRST LVDS Receiver Signal (C-)42NC or GNDNo Connection or Ground
FIRST LVDS Receiver Signal (C+)43NC or GNDNo Connection or Ground
Ground44GNDGround (notes 5)
FIRST LVDS Receiver Clock Signal(-)45GNDGround
Ground47NCNo connection
FIRST LVDS Receiver Signal (D-)48VLCDPower Supply +12.0V
FIRST LVDS Receiver Signal (D+)49VLCDPower Supply +12.0V
R2AN
R2AP
R2BN
R2CN
R2CP
R2CLKN
R2CLKP
GND
R2DN
R2DP
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~#10 NC (No Connection): These pins are used only for LGD (Do not connect)
5. Specific pin No. #44 is used for “No signal detection” of system signal interface.
It should be GND for NSB(No Signal Black) during the system interface signal is not.
If this pin is “H”, LCD Module displays AGP(Auto Generation Pattern).
SECOND LVDS Receiver Signal (A-)
SECOND LVDS Receiver Signal (A+)
SECOND LVDS Receiver Signal (B-)
SECOND LVDS Receiver Signal (C-)
SECOND LVDS Receiver Signal (C+)
SECOND LVDS Receiver Clock Signal(-)
SECOND LVDS Receiver Clock Signal(+)
Ground
SECOND LVDS Receiver Signal (D-)
SECOND LVDS Receiver Signal (D+)
Ver. 0.2
7 /39
Product Specification
3-2-2. Backlight Module
Master
-LED Driver Connector
: 20022WR- H14B2(Yeonho) or Compatible
- Mating Connector
: 20022HS - 14B2 (Yeonho) or Compatible
Notes :1. GND should be connectedto 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].
1
2
4
3
Ver. 0.2
◆ Rear view of LCM
1
14
…
<Master>
◆ Status
PCB
1
14
…
8 /39
LC550DUN
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)
ITEMSymbolMinTypMaxUnitNote
Horizontal
Vertical
Frequency
Display
Period
BlanktHB100140240tCLK1
TotaltHP106011001200tCLK
Display
Period
BlanktVB
TotaltVP
ITEMSymbolMinTypMaxUnitNote
DCLKfCLK63.0074.2578.00MHz
HorizontalfH57.367.570KHz2
VerticalfV
tHV960960960tCLK1920 / 2
tVV108010801080Lines
20
(228)
1100
(1308)
57
(47)
45
(270)
1125
(1350)
60
(50)
69
(300)
1149
(1380)
63
(53)
Lines1
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. 0.2
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LC550DUN
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. 0.2
10 /39
3-4. LVDS Signal Specification
3-4-1. LVDS Input Signal Timing Diagram
LC550DUN
Product Specification
DE, Data
DCLK
First data
Second data
0.7VDD
0.3VDD
tCLK
DE(Data Enable)
0.5 VDD
Invalid data
Invalid data
Valid data
Pixel 0,0
Valid data
Pixel 1,0
tHP
Pixel 2,0
Pixel 3,0
Invalid data
Invalid data
tHV
DE(Data Enable)
Ver. 0.2
11080
tVV
tVP
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