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LM215WF1
Liquid Crystal Display

Product Specification

SPECIFICATION
FOR
APPROVAL

( ) Preliminary Specification
( ● ) Final Specification

Title 21.5” Full HD TFT LCD

BUYER HP SUPPLIER LG Display Co., Ltd.

HP
MODEL *MODEL LM215WF1
SUFFIX TLA1

*When you obtain standard approval,

please use the above model name without suffix

SIGNATURE SIGNATUR
APPROVED BY APPROVED BY
DATE E DATE

/ Hans. Kim / G.Manager

REVIEWED BY
D. Y. KIM / Manager [C]

/ J. H. LEE / Manager [M]

D. Y. Seok / Manager [P]

PREPARED BY
/
J. Y. LEE / Engineer

Please return 1 copy for your confirmation with MNT Products Engineering Dept.
your signature and comments. LG Display Co., Ltd

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LM215WF1
Liquid Crystal Display

Product Specification

Contents

No ITEM Page
COVER 1

CONTENTS 2

RECORD OF REVISIONS 3

1 GENERAL DESCRIPTION 4

2 ABSOLUTE MAXIMUM RATINGS 5

3 ELECTRICAL SPECIFICATIONS 6

3-1 ELECTRICAL CHARACTREISTICS 6

3-2 INTERFACE CONNECTIONS 9

3-3 SIGNAL TIMING SPECIFICATIONS 13

3-4 SIGNAL TIMING WAVEFORMS 14

3-5 COLOR INPUT DATA REFERNECE 15

3-6 POWER SEQUENCE 16

3-7 VLCD POWER DIP CONDITION 17

4 OPTICAL SFECIFICATIONS 18
5 MECHANICAL CHARACTERISTICS 24

6 RELIABLITY 25

7 INTERNATIONAL STANDARDS 28

7-1 SAFETY 28

7-2 EMC 28

8 PACKING 29

8-1 DESIGNATION OF LOT MARK 29

8-2 PACKING FORM 29

9 PRECAUTIONS 30

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LM215WF1
Liquid Crystal Display

Product Specification

RECORD OF REVISIONS

Revision
Revision Date Page Description
No
0.1 JUL. 23. 2008 - First Draft(Preliminary)
0.2 SEP. 22. 2008 4 Update Power, weight
6 Update electrical characteristic (logic power, Inverter power)
12 Update signal timing spec
16 Update Color coordinate (RGB)
23 Update weight (2100g)
0.21 OCT 07, 2008 3, 23 Change POL harness (2H à 3H)
0.3 OCT. 27, 2008 12 Insert page lamp connector
0.31 Nov. 28, 2008 4 Change vertical line at Figure 1.
20 Response time (TrD & TrR) Swap at Figure 10.
0.4 Dec. 11, 2008 8 Update Lamp Voltage Tolerance (±10 → ±20)
24 Update GMA Scale specification
1.0 Dec. 12, 2008 - Final specification

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LM215WF1
Liquid Crystal Display

Product Specification

1. General Description
LM215WF1 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent
Lamp(CCFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element.
It is a transmissive type display operating in the normally white mode. It has a 21.5inch diagonally
measured active display area with Full HD resolution (1080 vertical by 1920 horizontal pixel array)
Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arranged in vertical stripes.
Gray scale or the brightness of the sub-pixel color is determined with a 8-bit gray scale signal for each dot,
thus, presenting a palette of more than 16,7M(True) colors.
It has been designed to apply the 8Bit 2 port LVDS interface.
I t i s i n t e nd e d to s u ppo r t di s pl ay s w he r e hi g h b ri g h t n es s , s u pe r wi de vi ewi n g a n gl e,
high color saturation, and high color are important.

RGB Source Driver Circuit

S1 S1920
LVDS
G1
2port
CN1 Timing
Gate Driver Circuit

(30pin)
Controller
+5.0V
TFT - LCD Panel
(1920 × RGB × 1080 pixels)

G1080

+5.0V
Power Circuit
Block

VLamp Back light Assembly

2 x 4 Sockets (High)
(4CCFL)

[ Figure 1 ] Block diagram

General Features
Active Screen Size 21.53 inches(546.86mm) diagonal
Outline Dimension 495.6(H) x 292.2(V) x 16.5(D) mm (Typ.)
Pixel Pitch 0.248 mm x 0.248mm
Pixel Format 1920 horiz. By 1080 vert. Pixels RGB stripes arrangement
Color Depth 8-bit (6bit + A FRC)
Luminance, White 300 cd/m2 ( Center 1 points)
Viewing Angle(CR>10) View Angle Free (R/L 170(Typ.), U/D 160(Typ.))
Power Consumption Total 28.5W(typ)/logic(4.5W), Inverter(24W) @ lamp current 7.5㎃
Weight 2100g (typ.)
Display Operating Mode Transmissive mode, normally white
Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer

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LM215WF1
Liquid Crystal Display

Product Specification

2. Absolute Maximum Ratings

The following are maximum values which, if exceeded, may cause faulty operation or damage to the unit.

Table 1. ABSOLUTE MAXIMUM RATINGS

Values
Parameter Symbol Units Notes
Min Max
Power Input Voltage VLCD 0 5.5 Vdc at 25 ± 2°C

Operating Temperature TOP 0 50 °C

Storage Temperature TST -20 60 °C
1, 2
Operating Ambient Humidity HOP 10 90 %RH

Storage Humidity HST 10 90 %RH

Note : 1. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 39 °C Max, and no condensation of water.
Note : 2. Maximum Storage Humidity is up to 40℃, 70% RH only for 4 corner light leakage Mura.

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]

[ Figure 2 ] Temperature and relative humidity

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LM215WF1
Liquid Crystal Display

Product Specification

3. Electrical Specifications

3-1. Electrical Characteristics

It requires two power inputs. One is employed to power the LCD electronics and to drive the TFT array and
liquid crystal. The second input power for the CCFL, is typically generated by an inverter. The inverter is an
external unit to the LCDs.

Table 2. ELECTRICAL CHARACTERISTICS

Values
Parameter Symbol Unit Notes
Min Typ Max
MODULE :
Power Supply Input Voltage VLCD 4.5 5.0 5.5 Vdc
Permissive Power Input Ripple VRF - - 100 mV 13
595 700 805 mA 1
Power Supply Input Current ILCD
765 900 1035 mA 2
Differential Impedance Zm 90 100 110 ohm
PLCD 3.0 3.5 4.03 Watt 1
Power Consumption
PLCD 3.8 4.5 5.2 Watt 2
Rush current IRUSH - - 3 A 3
LAMP :
780 800 1000
Operating Voltage VBL VRMS 4, 5
(8.0mA) (7.5mA) (2.5mA)
Operating Current IBL 2.5 7.5 8.0 mARMS 4
Established Starting Voltage Vs 4, 6
at 25 °C 1250 VRMS
at 0 °C 1550 VRMS
Operating Frequency fBL 40 - 70 kHz 7
Discharge Stabilization Time Ts 3.0 Min 4, 8
Power Consumption PBL - 24 26.4 Watt 9
Life Time 50,000 Hrs 4, 10

Note : The design of the inverter must have specifications for the lamp in LCD Assembly.
The performance of the Lamp in LCM, for example life time or brightness, is extremely influenced by
the characteristics of the DC-AC inverter. So all the parameters of an inverter should be carefully
designed so as not to produce too much leakage current from high-voltage output of the inverter.
When you design or order the inverter, please make sure unwanted lighting caused by the mismatch
of the lamp and the inverter (no lighting, flicker, etc) never occurs. When you confirm it, the LCD–
Assembly should be operated in the same condition as installed in you instrument.

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LM215WF1
Liquid Crystal Display

Product Specification
Note. Do not attach a conducting tape to lamp connecting wire. If the lamp wire attach to a conducting tape,
TFT-LCD Module has a low luminance and the inverter has abnormal action. Because leakage current
is occurred between lamp wire and conducting tape.
1. The specified current and power consumption are under the VLCD=5.0V, 25 ± 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 5ms and rising time of power Input is 500us ± 20%.(min.).
4. Specified values are for a single lamp.
5. Operating voltage is measured at 25 ± 2°C, and follows as below condition.
The variance of the voltage is ± 10%. (Based on single Lamp.)
The variance of the voltage is ± 20%. (Based on system & Test equipment tolerance.)
6. The voltage above VS should be applied to the lamps for more than 1 second for start-up.
(Inverter open voltage must be more than lamp starting voltage.)
Otherwise, the lamps may not be turned on. The used lamp current is the lamp typical current.
7. The output of the inverter must have symmetrical(negative and positive) voltage waveform and
symmetrical current waveform (Unsymmetrical ratio is less than 10%). Please do not use the inverter
which has unsymmetrical voltage and unsymmetrical current and spike wave.
Lamp frequency may produce interface with horizontal synchronous frequency and as a result this may
cause beat on the display. Therefore lamp frequency shall be as away possible from the horizontal
synchronous frequency and from its harmonics in order to prevent interference.
8. Let’s defi ne the bri ghtness of the lamp after bei ng li ghted for 5 mi nutes as 100%.
TS is the time required for the brightness of the center of the lamp to be not less than 95%.
The used lamp current is the lamp typical current.
9. The lamp power consumption shown above does not include loss of external inverter.
The used lamp current is the lamp typical current. (PBL = VBL x IBL x NLamp )
10. The life is determined as the time at which brightness of the lamp is 50% compared to that of initial
value at the typical lamp current on condition of continuous operating at 25 ± 2°C.
11. Requirements for a system inverter design, which is intended to have a better display performance,
a better power efficiency and a more reliable lamp, are following.
It shall help increase the lamp lifetime and reduce leakage current.
a. The asymmetry rate of the inverter waveform should be less than 10%.
b. The distortion rate of the waveform should be within √2 ±10%.
* Inverter output waveform had better be more similar to ideal sine wave.

* Asymmetry rate:
Ip
|I p –I –p | / Irms x 100%

* Distortion rate
I -p
I p (or I –p) / Irms

12. The inverter which is combined with this LCM, is highly recommended to connect coupling(ballast)
condenser at the high voltage output side. When you use the inverter which has not coupling(ballast)
condenser, it may cause abnormal lamp lighting because of biased mercury as time goes.
13. Permissive power ripple should be measured under VLCD =12.0V, 25°C, fV(frame frequency)=MAX
condition and At that time, we recommend the bandwidth configuration of oscilloscope is to be under
20Mhz. See the figure 3.
14. In case of edgy type back light with over 4 parallel lamps, input current and voltage wave form should
be synchronized

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LM215WF1
Liquid Crystal Display

Product Specification

• Permissive Power input ripple (VLCD =5.0V, 25°C, fV(frame frequency)=MAX condition)

White pattern Black pattern

• Power consumption (VLCD =5.0V, 25°C, fV (frame frequency=60Hz condition)

Typical power Pattern

[ Figure 3 ] Mosaic pattern & Black Pattern for power consumption measurement

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LM215WF1
Liquid Crystal Display

Product Specification

3-2. Interface Connections

3-2-1. LCD Module
-LCD Connector(CN1). :FI-XB30SL-HF11(JAE), MDF76LBRW-30S-1H (Hirose) or Equivalent
- Mating Connector : FI-XC30C2L (Manufactured by JAE) or Equivalent

Table 3 MODULE CONNECTOR(CN1) PIN CONFIGURATION

N N
Symbol Description Symbol Description
o o
1 FR0M - Signal of odd channel 0 (LVDS) 16 SR1P + Signal of even channel 1 (LVDS)

2 RM0P + Signal of odd channel 0 (LVDS) 17 GND Ground

3 FR1M - Signal of odd channel 1 (LVDS) 18 SR2M - Signal of even channel 2 (LVDS)

4 FR1P + Signal of odd channel 1 (LVDS) 19 SR2P + Signal of even channel 2 (LVDS)

5 FR2M - Signal of odd channel 2 (LVDS) 20 SCLKINM - Signal of even clock channel (LVDS)

6 FR2P + Signal of odd channel 2 (LVDS) 21 SCLKINP + Signal of even clock channel (LVDS)

7 GND Ground 22 SR3M - Signal of even channel 3 (LVDS)

8 FCLKINM - Signal of odd clock channel (LVDS) 23 SR3P + Signal of even channel 3 (LVDS)

9 FCLKINP + Signal of odd clock channel (LVDS) 24 GND Ground

10 FR3M - Signal of odd channel 3 (LVDS) 25 NC NC (reserved I2C communication)

11 FR3P + Signal of odd channel 3 (LVDS) 26 NC NC (reserved I2C communication)

PWM_OUT for control burst frequency of
12 SR0M - Signal of even channel 0 (LVDS) 27 PWM
Inverter

13 SR0P + Signal of even channel 0 (LVDS) 28 VLCD Power +5V

14 GND Ground 29 VLCD Power +5V

15 SR1M - Signal of even channel 1 (LVDS) 30 VLCD Power +5V

Note: 1. All GND(ground) pins should be connected together and to Vss which should also be connected to
the LCD’s metal frame.
2. All VLCD (power input) pins should be connected together.
3. Input Level of LVDS signal is based on the IEA 664 Standard.

[ Figure 4 ] User Connector diagram

1 30
#1 #30

Rear view of LCM

IS100-L30B-C23(UJU)

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LM215WF1
Liquid Crystal Display

Product Specification

LVDS Input characteristics

1. DC Specification

Description Symbol Min Max Unit Notes

LVDS Differential Voltage |VID| 100 600 mV -
LVDS Common mode Voltage VCM 0.6 1.8 V -
LVDS Input Voltage Range VIN 0.3 2.1 V -

2. AC Specification

t SKEW_ EO

LVDS Odd Clock

T clk

LVDS Even Clock

T clk

LVDS Even Data

Description Symbol Min Max Unit Notes

tSKEW - 400 + 400 ps 85MHz > Fclk ≥ 65MHz
LVDS Clock to Data Skew Margin
tSKEW - 600 + 600 ps 65MHz > Fclk ≥ 25MHz
LVDS Clock to Clock Skew Margin (Even to Odd) tSKEW_EO - 1/7 + 1/7 Tclk -

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LM215WF1
Liquid Crystal Display

Product Specification

< Clock skew margin between channel >

3. Data Format
1) LVDS 2 Port

< LVDS Data Format >

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LM215WF1
Liquid Crystal Display

Product Specification

Table 4. BACKLIGHT CONNECTOR PIN CONFIGURATION(CN2,CN3,CN4,CN5)

The backlight interface connector is a model 35001HS-02LD manufactured by Yeonho. The mating
connector part number are 35001WR-02L or equivalent. The pin configuration for the connector is shown in
the table below.

Pin Symbol Description NOTES

1 HV High Voltage for Lamp 1

2 LV Low Voltage for Lamp 1, 2

Note : 1. The high voltage power terminal is colored pink, white

The low voltage pin color is sky blue, white.
2. The backlight ground should be common with LCD metal frame.
3. 35001HS-02LD (Locking type)

Up Side
Lamp1
CN2

Lamp2
CN3

Down Side
Lamp3
CN4

Lamp4
CN5

[ Figure 5 ] Backlight connector diagram

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LM215WF1
Liquid Crystal Display

Product Specification
3-3. Signal Timing Specifications
This is the signal timing required at the input of the User connector. All of the interface signal timing
should be satisfied with the following specifications for it’s proper operation.

Table 5. Timing Table

ITEM Symbol Min Typ Max Unit Note

Period tCLK 11.42 14.44 15.38 ns Pixel frequency
DCLK
Frequency - 60 72 87.5 MHz : Typ.138.5MHz
total tHP 1000 1088 1120 tCLK
Frequency fH 64 66 83 KHz
Horizontal
Blanking 40 128 160 tCLK
valid tWH 960 960 960 tCLK/2
total tVP 1090 1100 1160 tHP
Frequency fV 50 60 75 Hz
Vertical
Blanking 10 20 80 tHP
valid tWV 1080 1080 1080 tHP

Note:
1. DE Only mode operation. The input of Hsync & Vsync signal does not
have an effect on LCD normal operation.
2. The performance of the electro-optical characteristics may be influenced by variance of the
vertical refresh rates.
3. Horizontal period should be even.

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LM215WF1
Liquid Crystal Display

Product Specification

3-4. Signal Timing Waveforms

1. DCLK , DE, DATA waveforms

tCLK

Dclk
tSD tHD Valid

Invalid Invalid
Data
tSI tHI
DE(Data Enable)

2. Horizontal waveform
tHP
tHV

DE(Data Enable) DE

3. Vertical waveform
tVP
tVV
tHP
DE(Data Enable) DE

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LM215WF1
Liquid Crystal Display

Product Specification

3-5. Color Input 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 6. COLOR DATA REFERENCE

Input Color Data

RED GREEN BLUE

Color
MSB LSB MSB LSB MSB LSB

R7 R6 R5 R4 R3 R2 R1 R0 G7 G6 G5 G4 G3 G2 G1 G0 B7 B6 B5 B4 B 3 B 2 B1 B 0

Black 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Red (255) 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Green (255) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0

Basic Blue (255) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1

Color Cyan 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Magenta 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1

Yellow 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0

White 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

RED (000) Dark 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

RED (001) 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

RED ... ... ... ...

RED (254) 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

RED (255) 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

GREEN (000) Dark 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

GREEN (001) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0

GREEN ... ... ... ...

GREEN (254) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0

GREEN (255) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0

BLUE (000) Dark 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

BLUE (001) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1

BLUE ... ... ... ...

BLUE (254) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0

BLUE (255) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1

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LM215WF1
Liquid Crystal Display

Product Specification

3-6. Power Sequence

VLCD
90% 90%

10% 10%
Power Supply, VLCD 0V
T1 T6

T2 T5 T7

Valid Data
Interface Signal, Vi
(Digital RGB signal, 0V
SCDT ,Vsync, Hsync, DE,
Clock to PanelLink T3 T4
Transmitter)

LAMP OFF LAMP ON LAMP OFF

Power Supply for Backlight
Inverter
[ Figure 6 ] Power sequence

Table 7. POWER SEQUENCE

Values
Parameter Units
Min Typ Max

T1 0.5 - 10 ms

T2 0.01 - 50 ms

T3 500 - - ms

T4 200 - - ms

T5 0.01 - 50 ms

T6 - - - ms

T7 1 - s

Notes : 1. Please avoid floating state of interface signal at invalid period.

2. When the interface signal is invalid, be sure to pull down the power supply for LCD VLCDto 0V.
3. Lamp power must be turn on after power supply for LCD and interface signal are valid.

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LM215WF1
Liquid Crystal Display

Product Specification

3-7. VLCD Power Dip Condition

VLCD

4.5V
3.5V
td

[ Figure 7 ] Power dip condition

1) Dip condition

3.5V ≤VLCD＜ 4.5V , td≤20ms

2) VLCD＜ 3.5V

VLCD-dip conditions should also follow the Power On/Off conditions for supply voltage.

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LM215WF1
Liquid Crystal Display

Product Specification

4. Optical Specifications
Optical characteristics are determined after the unit has been ‘ON’ for approximately 30 minutes
in a dark environment at 25±2°C. The values specified are at an approximate distance 50cm from the LCD
surface at a viewing angle of Φ and θ equal to 0 ° and aperture 1 degree.
FIG. 1 presents additional information concerning the measurement equipment and method.

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

50cm
[ Figure 8 ] Optical characteristic measurement equipment and method

Table 8. OPTICAL CHARACTERISTICS (Ta=25 °C, VLCD=5.0V, fV=60Hz Dclk=69.25MHz, IBL=7.5mA)

Values
Parameter Symbol Units Notes
Min Typ Max
Contrast Ratio CR 700 1000 1
Surface Luminance, white LWH 250 300 cd/m 2
2
Luminance Variation δ WHITE 75 % 3
Rise Time TrR - 1.3 2.6 ms 4
Response Time Decay Time TrD - 3.7 7.4 ms 4
total T 5 ms
Rx 0.646
RED
Ry 0.334
Gx 0.303
GREEN
Color Coordinates Gy Typ 0.616 Typ
[CIE1931] Bx -0.03 0.147 +0.03
BLUE
By 0.067
Wx 0.313
WHITE
Wy 0.329
Color Gamut 72% 5
Viewing Angle (CR>10)
General Horizontal θH 140 170 -
Degree 6
(CR>10) Vertical θV 130 160 -
Luminance uniformity-
LR 1.7 Fig 11
Angular dependence(TCO’03)
Gray Scale 2.2 7

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LM215WF1
Liquid Crystal Display

Product Specification

Notes 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 point(Location P1)
2. Surface luminance is the luminance value at center 1 point(1) across
the LCD surface 50cm from the surface with all pixels displaying white.
For more information see FIG 9.

3. The variation in surface luminance , δ WHITE is defined as :

Minimum(L P1 , L P2 , ….. L P9 )
δWHITE = × 100
Maximum (L P1 , L P2 , .... L P9 )

For more information see FIG 9.

4. Response time is the time required for the display to transition from black to white (Rise Time,
TrR) and from white to black (Decay Time, TrD). For additional information see FIG 3.

5. Color gamut is calculated from CIE 1931 space.

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 surface. For more information see FIG 5.

7. Gray scale specification

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

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LM215WF1
Liquid Crystal Display

Product Specification

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

<Measuring point for luminance variation> <Measuring point for surface luminance>
H H

H/2 H/10 H/2

2 3 4 V/2
V/2
V
V 5 6
1

V/10 7 8 9

Active Area
@ H,V : Active Area

[ FIG 9 ] Measure Point for Luminance

The response time is defined as the following figure and shall be measured by switching the input signal for
“black” and “white”.

T rD T rR
100
90

Optical
Response

10
0 white black
black

[ FIG 10 ] Response Time

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LM215WF1
Liquid Crystal Display

Product Specification

Notes :

Luminance Uniformity - angular – dependence (LR& TB)

TCO ‘03 Luminance uniformity – angular dependence, is the capacity of the VDU
to present the same Luminance level independently of the viewing direction.
The angular-dependent luminance uniformity is calculated as the ratio of maximum
luminance to minimum luminance in the specified measurement areas.

- Test pattern : 80% white pattern

- Test point : 2-point
- Test distance : D * 1.5 = 82㎝
- Test method : LR = ((Lmax.+30deg. / Lmin. +30deg.) + (Lmax. -30deg. / Lmin. -30deg.)) / 2
TB = ((Lmax.+15deg. / Lmin. +15deg.)

FIG. 11 Luminance Uniformity angular dependence

< Luminance uniformity - angular dependence measuring point >

D V/10
T
V/2
L C R
V

V/2 B
V/10

H/10 H/10

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LM215WF1
Liquid Crystal Display

Product Specification

Dimension of viewing angle range.

Normal
E Y
φ = 90°, Up

φ = 180°, Left
θ

φ = 0°, Right

φ = 270°, Down

[ FIG 12 ] Viewing angle

[ FIG 13 ] Sample Luminance vs. gray scale [ FIG 14 ] Sample Log-log plot of
(using a 256 bit gray scale) luminance vs. gray scale

L = aV r + Lb log( L − Lb ) = r log(V ) + log(a )

Here the Parameter α and γ relate the signal level V to the luminance L.
The GAMMA we calculate from the log-log representation (FIG. 7)

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LM215WF1
Liquid Crystal Display

Product Specification

Table 10. Gray Scale Specification

Gray Level Relative Luminance [%] (Typ.)

0 0.11

31 1.08

63 4.72

95 11.49

127 21.66

159 35.45

191 53.00

223 74.48

255 100

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LM215WF1
Liquid Crystal Display

Product Specification

5. Mechanical Characteristics
The contents provide general mechanical characteristics. In addition the figures in the next page are detailed
mechanical drawing of the LCD.

Horizontal 495.6mm

Outline Dimension Vertical 292.2mm

Depth 16.5mm

Horizontal 479.84mm
Bezel Area
Vertical 271.31mm

Horizontal 476.64mm
Active Display Area
Vertical 268.11mm

Weight 2100g(typ)

Hard coating(3H)
Surface Treatment
Anti-Glare treatment of the front polarizer

Notes : Please refer to a mechanic drawing in terms of tolerance at the next page.

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LM215WF1
Liquid Crystal Display

Product Specification

<FRONT VIEW>

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LM215WF1
Liquid Crystal Display

Product Specification

<REAR VIEW>

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LM215WF1
Liquid Crystal Display

Product Specification

6. Reliability
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 : 1.0G RMS
Vibration test
5 Bandwidth : 10-300Hz
(non-operating)
Duration : X,Y,Z, 10 min
One time each direction
Shock level : 100G
Shock test Waveform : half sine wave, 2ms
6
(non-operating) Direction : ±X, ±Y, ±Z
One time each direction

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

Altitude
8
storage / shipment 0 - 40,000 feet(12192m)

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LM215WF1
Liquid Crystal Display

Product Specification

7. International Standards

7-1. Safety

a) UL 60950-1:2003, First Edition, Underwriters Laboratories, Inc.,

Standard for Safety of Information Technology Equipment.
b) CAN/CSA C22.2, No. 60950-1-03 1st Ed. April 1, 2003, Canadian Standards Association,
Standard for Safety of Information Technology Equipment.
c) EN 60950-1:2001, First Edition,
European Committee for Electrotechnical Standardization(CENELEC)
European Standard for Safety of Information Technology Equipment.

7-2. EMC

a) ANSI C63.4 “Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and
Electrical Equipment in the Range of 9kHZ to 40GHz. “American National Standards Institute(ANSI),
1992
b) C.I.S.P.R “Limits and Methods of Measurement of Radio Interface Characteristics of Information
Technology Equipment.“ International Special Committee on Radio Interference.
c) EN 55022 “Limits and Methods of Measurement of Radio Interface Characteristics of Information
Technology Equipment.“ European Committee for Electrotechnical Standardization.(CENELEC), 1998
( Including A1: 2000 )

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LM215WF1
Liquid Crystal Display

Product Specification

8. Packing

8-1. Designation of Lot Mark

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 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
Mark 1 2 3 4 5 6 7 8 9 0

2. MONTH

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mark 1 2 3 4 5 6 7 8 9 A B C

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 box : 7pcs

b) Box Size : 370mm x 320mm x 580mm

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LM215WF1
Liquid Crystal Display

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 holes arranged in four corners or four sides.
(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 benzene. 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) The spike noise causes the mis-operation of circuits. It should be lower than following voltage :
V=±200mV(Over and under shoot voltage)
(2) Response time depends on the temperature.(In lower temperature, it becomes longer.)
(3) 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.
(4) 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.
(5) When fixed patterns are displayed for a long time, remnant image is likely to occur.
(6) 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.
(7) Please do not give any mechanical and/or acoustical impact to LCM. Otherwise, LCM can’t be operated
its full characteristics perfectly.
(8) A screw which is fastened up the steels should be a machine screw.
(if not, it causes metallic foreign material and deal LCM a fatal blow)
(9) Please do not set LCD on its edge.

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LM215WF1
Liquid Crystal Display

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.

9-6. HANDLING PRECAUTIONS FOR PROTECTION FILM

(1) The protection film is attached to the bezel with a small masking tape.
When the protection film is peeled off, static electricity is generated between the film and polarizer.
This should be peeled off slowly and carefully by people who are electrically grounded and with well ion-
blown equipment or in such a condition, etc.
(2) When the module with protection film attached is stored for a long time, sometimes there remains a very
small amount of glue still on the bezel after the protection film is peeled off.
(3) You can remove the glue easily. When the glue remains on the bezel surface or its vestige is recognized,
please wipe them off with absorbent cotton waste or other soft material like chamois soaked with normal-
hexane.

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