INTERFACE CONNECTIONS
SIGNAL TIMING SPECIFICATIONS
SIGNAL TIMING WAVEFORMS
COLOR INPUT DATA REFERNECE
POWER SEQUENCE
VLCD POWER DIP CONDITION
OPTICAL SFECIFICATIONS
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24MECHANICAL CHARACTERISTICS5
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7-3
8-1
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RELIABLITY
INTERNATIONAL STANDARDS
SAFETY
EMC
Environment
PACKING
DESIGNATION OF LOT MARK
PACKING FORM
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30PRECAUTIONS9
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Product Specification
RECORD OF REVISIONS
LM215WF1
Liquid Crystal Display
Revision
No
DescriptionPageRevision Date
First Draft(Preliminary)-May. 18. 20100.1
Final CAS-Aug. 09. 20101.0
The 2D drawing (rear view) update.26
Permissive Power Input Ripple update (customer request, 100à300)6Aug. 16. 20101.1
Rush current update (customer request, 3à3.16)6
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LM215WF1
Liquid Crystal Display
Product Specification
1. General Description
LM215WF1 is a Color Active Matrix Liquid Crystal Display with anintegral 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.
Ithas been designed to apply the 8Bit 2 port LVDS interface.
It is intended to support displays where high brightness, super wide viewing angle,
high color saturation, and high color are important.
LVDS
2port
CN1
(30pin)
+5.0V
+5.0V
VLamp
General Features
RGB
Timing
Controller
Power Circuit
Block
2 x 4 Sockets (High)
[ Figure 1 ] Block diagram
21.53 inches(546.86mm) diagonalActive Screen Size
495.6(H) x 292.2(V) x 16.5(D) mm (Typ.)Outline Dimension
0.248 mm x 0.248mmPixel Pitch
Source Driver Circuit
S1S1920
G1
TFT -LCD Panel
(1920 × RGB × 1080 pixels)
G1080
Back light Assembly
(4CCFL)
1920 horiz. By 1080 vert. Pixels RGB stripes arrangementPixel Format
8-bit (6bit + A FRC)Color Depth
300cd/m
View Angle Free (R/L 170(Typ.), U/D 160(Typ.))Viewing Angle(CR>10)
Total 28.97W(typ)/logic4.97W, Inverter 24W @ lamp current 7.5㎃Power Consumption
2
( Center 1 points)Luminance, White
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2100g (typ.) Weight
Transmissive mode, normally whiteDisplay Operating Mode
Hard coating(3H), Anti-glare treatment of the front polarizerSurface Treatment
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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
ParameterNotes
Power Input Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity
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.
Wet Bulb
Temperature [C]
10
0
Symbol
50
40
30
20
Values
MaxMin
500TOP
60-20TST
90%
60
60%
40%
Humidity [(%)RH]
10%
Units
at 25 ± 2°CVdc+6.00VLCD
°C
°C
%RH9010HOP
%RH9010HST
Storage
Operation
1, 2
10203040506070800-20
Dry Bulb Temperature [C]
[ Figure 2 ] Temperature and relative humidity
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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
ParameterSymbol
MODULE :
Power Consumption
LAMP :
Operating Frequency
Discharge Stabilization Time
Power Consumption
Life Time
at 25 °C
at 0 °C
Values
MaxTypMin
Vdc5.55.04.5VLCDPower Supply Input Voltage
ILCDPower Supply Input Current
VBLOperating Voltage
(780)
(8.0mA)
(800)
(7.5mA)
(1000)
(2.5mA)
8.07.52.5IBLOperating Current
1250
1550
RMS
RMS
V
RMS
V
RMS
NotesUnit
13mV300--VRFPermissive Power Input Ripple
1mA1291993695
2mA16711285900
1Watt6.464.97PLCD
2Watt8.366.43PLCD
3A3.16--IRUSHRush current
4, 5V
4mA
4, 6VsEstablished Starting Voltage
7kHz70-40fBL
4, 8Min3.0Ts
9Watt(26.4)(24)-PBL
4, 10Hrs50,000
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 fromhigh-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 theV
whereas mosaic pattern(8 x 6) is displayed and fVis the frame frequency.
2. The current is specified at the full black pattern..
3. The duration of rush current is about 5ms and rising timeof 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 VSshould be applied to the lamps for more than 1 second for start-up.
(Inverter open voltage must be more than lamp startingvoltage.)
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(negativeand 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 define the brightness of the lamp after being lighted for 5 minutes as 100%.
TSis 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= VBLx IBLx N
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 leakagecurrent.
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.
=5.0V, 25 ± 2°C,fV=60Hz condition
LCD
)
Lamp
* Asymmetry rate:
I p
I -p
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 becauseof biased mercury as time goes.
13. Permissive power ripple should be measured under V
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conditionand 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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| I p– I –p| / I
* Distortion rate
I p(or I –p) / I
=5.0V, 25°C, fV(frame frequency)=MAX
LCD
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rms
rms
x 100%
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Product Specification
LM215WF1
Liquid Crystal Display
• Permissive Power input ripple (V
White pattern
• Power consumption (V
=5.0V, 25°C, fV (frame frequency=60Hz condition)
LCD
=5.0V, 25°C, fV(frame frequency)=MAX condition)
LCD
Black pattern
Mosaic Pattern
[ Figure 3 ] Mosaic pattern & Black Pattern for power consumption measurement
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