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LC320EUN
Product Specification

SPECIFICATION
FOR
APPROVAL

SIGNATURE
DATE

TV Product Development Dept.
LG Display Co., Ltd.

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Product Specification

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Product Specification

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LC320EUN
Product Specification

The LC320EUN is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)
b a c k l i g h t s y s t e m . T h e m a t r i x e mplo ys a-Si Th in Film Trans istor as the active e lem ent.
It is a transmissive display type which is operating in the normally black mode. It has a 31.55 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 16.7Million 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.

Mini-LVDS(RGB)
EEPROM
LVDS Source Driver Circuit
2Port SCL SDA S1 S1920

LVDS G1
Select
LVDS 1,2 Timing Controller
OPC
Enable Option
LVDS Rx + OPC + DGA
Control
TFT - LCD Panel
Integrated (1920 RGB 1080 pixels)
signal Signals
CN1
[Gate In Panel]
ExtVBR-B(51pin)

I2C G1080

+12.0V Power Circuit Power Signals
Block
PWM_OUT CN2
1~3 (8 pin)
PWM_OUT
1~3
+24.0V, GND, On/Off LED Driver

General Features

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Product Specification

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

Note1. Ambient temperature condition (Ta = 25 r 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%

60
60%

50 Storage
Humidity [(%)RH]

Wet Bulb
Temperature [ C]
40
40%
Operation
30
20
10
0
10%

-20 0 10 20 30 40 50 60 70 80

Dry Bulb Temperature [ C]

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LC320EUN
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

460 575

680 850

5.5 6.9

- 5.0

Note
1. The specified current and power consumption are under the VLCD=12.0V, Ta=25 r 2 C, fV=60Hz
condition whereas 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. ExtVBR-B signal have to input available duty range and sequence.
After Driver ON signal is applied, ExtVBR-B should be sustained from 5% to 100% more than 500ms.
After that, ExtVBR-B 1% and 100% is possible
For more information, please see 3-6-2. Sequence for LED Driver.

White : 255 Gray
Black : 0 Gray

Mosaic Pattern(8 x 6)

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Product Specification

Table 3. ELECTRICAL CHARACTERISTICS (Continue)

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. The duration of rush current is about 200ms. This duration is applied to LED on time.
4. Even though inrush current is over the specified value, there is no problem if I 2T spec of fuse is satisfied.

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Product Specification

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-R51S-HF(manufactured by JAE) or compatible
Refer to below and next Page table
- Mating Connector : FI-R51HL(JAE) or compatible

Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION

` ' ` '

Note 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 & #9 NC (No Connection): These pins are used only for LGD (Do not connect)
5. Specific pins(pin No. #10) are used for Scanning function of the LCD module.
If not used, these pins are no connection. (Please see the Appendix VI for more information.)
6. 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).

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Product Specification

3-2-2. Backlight Module
Master
-LED Driver Connector
: 20022WR - H14B1(Yeonho) or Equivalent
- Mating Connector
: 20022HS - 14B2 or Equivalent

Table 5. LED DRIVER CONNECTOR PIN CONFIGURATION

Notes : 1. GND should be connected to the LCD module's metal frame.
2. Normal : Low (under 0.7V) / Abnormal : High (upper 3.0V)
3. The impedance of pin #12 is over 50 [K ] .

Rear view of LCM
PCB

1 14
1 14
...
...

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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)

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

Timing should be set based on clock frequency.

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Product Specification

3-4. LVDS Signal Specification
3-4-1. LVDS Input Signal Timing Diagram

0.7VDD
DE, Data
0.3VDD

tCLK
0.5 VDD

DCLK

Valid data

First data Invalid data Pixel 0,0 Pixel 2,0 Invalid data

Valid data

Second data Invalid data Pixel 1,0 Pixel 3,0 Invalid data

DE(Data Enable)

tHV

tHP

1 1080

DE(Data Enable)

tVV

tVP

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Product Specification

3-4-2. LVDS Input Signal Characteristics
1) DC Specification
LVDS -

LVDS +

V CM V IN _ MAX V IN _ MIN

# V CM = {( LVDS +) + ( LVDS - )} /2
0V

Description Symbol Min Max Unit Note
LVDS Common mode Voltage VCM 1.0 1.5 V -
LVDS Input Voltage Range VIN 0.7 1.8 V -
Change in common mode Voltage VCM 250 mV -
2) AC Specification
Tclk

LVDS Clock

LVDS Data

( F clk = 1 /T clk )
tSKEW tSKEW
A
Tclk
LVDS 1'st Clock 80%

LVDS 2nd / 3rd / 4th Clock
20%
tRF
tSKEW_min tSKEW_max

Description Symbol Min Max Unit Note
High Threshold VTH 100 300 mV
LVDS Differential Voltage 3
Low Threshold VTL -300 -100 mV
LVDS Clock to Data Skew tSKEW - |(0.25*Tclk)/7| ps -
LVDS Clock/DATA Rising/Falling time tRF 260 |(0.3*Tclk)/7| ps 2
Effective time of LVDS teff | 360| - ps -
LVDS Clock to Clock Skew (Even to Odd) tSKEW_EO - |1/7* Tclk| ps -
Note 1. All Input levels of LVDS signals are based on the EIA 644 Standard.
2. If tRF isn't enough, teff should be meet the range.
3. LVDS Differential Voltage is defined within teff

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LC320EUN
Product Specification

360ps

0.5tui tui
V+
data

VTH
Vcm
VTL

V-
360ps
data
teff
V+ tui : Unit Interval
clk

Vcm

V-
clk

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Product Specification

3-5. Color Data Reference

The brightness of each primary color(red,green,blue) is based on the 8-bit gray scale data input for the color
the higher the binary input, the brighter the color. The table below provides a reference for color versus data
input.
Table 7. COLOR DATA REFERENCE

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Product Specification

3-6. Power Sequence
3-6-1. LCD Driving circuit

90% 90%
Power Supply For LCD
VLCD 10% 10% 10%
0V
T8
T1
T5
T2
Valid Data Vcm : LVDS Common mode Voltage
30%
Interface Signal (Tx_clock) 0V

100% T3 T4
T6
User Control Signal
(LVDS_select, OPC Enable)

Power for LED T7 LED ON

Table 8. POWER SEQUENCE

1. Even though T1 is over the specified value, there is no problem if I2T spec of fuse is satisfied.
Note : 2. If T2 is satisfied with specification after removing LVDS Cable, there is no problem.
3. The T3 / T4 is recommended value, the case when failed to meet a minimum specification,
abnormal display would be shown. There is no reliability problem.
4. T5 should be measured after the Module has been fully discharged between power off and on period.
5. If the on time of signals (Interface signal and user control signals) precedes the on time of Power (VLCD),
it will be happened abnormal display. When T6 is NC status, T6 doesn't need to be measured.
6. If there is no abnormal display, no problem.
7. It is recommendation specification that T8 has to be 100ms as a minimum value.
Please avoid floating state of interface signal at invalid period.
When the power supply for LCD (VLCD) is off, be sure to pull down the valid and invalid data to 0V.

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Product Specification

3-6-2. Sequence for LED Driver
Power Supply For LED Driver

24V (typ.)
90% 90%
VBL
10%
0V

T3
T1 T2
VON/OFF
LED ON

ExtVBR-B

T4 T6

3-6-3. Dip condition for LED Driver

T5
VBL : 24V

VBL(Typ.) x 0.8

Table 9. Power Sequence for LED Driver

Notes : 1. T1 describes rising time of 0V to 24V and this parameter does not applied at restarting time.
Even though T1 is over the specified value, there is no problem if I2T spec of fuse is satisfied.
2. In T6 section, ExtVBR-B should be sustained from 5% to 100% .

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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 50cm from the LCD surface at a viewing angle of ) and T equal to 0 .
FIG. 1 shows additional information concerning the measurement equipment and method.

LCD Module Pritchard 880 or
Optical Stage(x,y)
equivalent

50cm
FIG. 1 Optical Characteristic Measurement Equipment and Method

Ta= 25 2 C, VLCD=12.0V, fV=60Hz, Dclk=74.25MHz,
Table 10. OPTICAL CHARACTERISTICS EXTVBR-B =100%

I T
I T
I T

T
I
T
T

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

Surface Luminance with all white pixels
Contrast Ratio =
Surface Luminance with all black pixels
It is measured at center 1-point.
2. Surface luminance are 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 , G WHITE is defined as :
G WHITE(5P) = Maximum(Lon1,Lon2, Lon3, Lon4, Lon5) / Minimum(Lon1,Lon2, Lon3, Lon4, Lon5)
Where Lon1 to Lon5 are the luminance with all pixels displaying white at 5 locations .
For more information, see the FIG. 2.
4. Response time is the time required for the display to transit from any gray to white (Rise Time, TrR)
and from any gray to black (Decay time, TrD). For additional information see the FIG. 3.
G to GBW Spec stands for average value of all measured points.
Photo Detector : RD-80S / Field : 2
5. G to G is Variation of Gray to Gray response time composing a picture

G to G ( ) = (Xi- u)2 Xi = Individual Data
N u = Data average
N : The number of Data
6. 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. 4.
7. Gray scale specification
Gamma Value is approximately 2.2. For more information, see the Table 11.

Table 11. GRAY SCALE SPECIFICATION

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

H
A
V
B

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

FIG. 2 5 Points for Luminance Measure

Response time is defined as the following figure and shall be measured by switching the input signal for
"Gray(N)" and "Gray(M)".

TrR TrD
100
90

Optical
Response

10
Gray(N) Gray(M) Gray(N)
0
N,M = Black~White, N

Luminance

T
Lum( LE or RE, test pattern, number )

Measurement through measurement
Left or Right eyeglass position

< Figure 7. Positioning eyeglass > < Figure 8. notation of luminance measurement >

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
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.

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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.

Average of Lum(LE, LB-RW,1) - Lum(LE, LB-RB,1)
Lum(LE, LW-RB,1) - Lum(LE, LB-RB,1)
and
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

y axis

yu(up)
z axis
LCM yd (down)

(a) Test pattern image (b) Measurement of 3D viewing angle (up/down)

< Figure 9. Measurement of 3D crosstalk and 3D viewing angle >

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Product Specification

Table 12 provides general mechanical characteristics.

Table 12. MECHANICAL CHARACTERISTICS

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

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Product Specification

[ FRONT VIEW ]

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Product Specification

[ REAR VIEW ]

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Table 13. ENVIRONMENT TEST CONDITION

X, Y, Z

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

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Product Specification

7. International Standards

7-1. Safety
a) UL 60065, Seventh Edition, 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 60065:2002 + A11:2008, European Committee for Electrotechnical Standardization (CENELEC).
Audio, Video and Similar Electronic Apparatus - Safety Requirements.
d) IEC 60065:2005 + A1:2005, 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

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

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