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3.Electrical Specification
The T315XW01 V2 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 BLU, is to power inverter..
3-1 Electrical Characteristics
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ValuesParameterSymbol
MinTypMax
LCD:
Power Supply Input VoltageVcc4.55.05.5Vdc
Power Supply Input CurrentIcc-1.51.8A1
Power ConsumptionPc-7.59Watt1
Inrush Current I
Backlight Power ConsumptionPbl115132Watt
Life Time60,000Hours3
Note :
1. Vcc=5.0V,
2. Duration = 1
3. 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 your instrument.
4. Do not attach a conducting tape to lamp connecting wire. If the lamp wire attach to conducting tape,
TFT-LCD Module have a low luminance and the inverter has abnormal action because leakage current
occurs between lamp wire and conducting tape.
5. The relative humidity must not exceed 80% non-condensing at temperatures of 40 or less. At
temperatures greater than 40, the wet bulb temperature must not exceed 39. When operate at low
temperatures, the brightness of CCFL will drop and the life time of CCFL will be reduced.
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y
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.
* Timing Table
DE only Mode
Vertical Frequency Range A
SignalItemSymbolMinTypeMaxUnit
PeriodTv789806822Th
Vertical
Section
Horizontal
Section
Clock
Vertical
Frequency
Horizntal
Frequency
Active
BlankingTblk (v)213854Th
PeriodTh141415601722Tclk
Active
BlankingTblk (h)48194356Tclk
Frequenc
Frequency
FrequencyFreq47.3249.32KHz
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Tdisp
(v)Th
Tdisp
(h)Tclk
1/Tclk657688MHz
Freq58
768
1366
6062Hz
Vertical Frequency Range B
SignalItemSymbolMinTypeMaxUnit
PeriodTv789806822Th
Tdisp
Vertical
Section
Horizontal
Section
Clock
Vertical
Frequency
Horizntal
Frequency
Active
BlankingTblk (v)213854Th
PeriodTh141415601722Tclk
Active
BlankingTblk (h)48194356Tclk
Frequency1/Tclk546374MHz
FrequencyFreq
FrequencyFreq39.4541.10KHz
(v)Th
Tdisp
(h)Tclk
48
1.) Display position is specific by the rise of DE signal only.
Horizontal display position is specified by the falling edge of 1
768
1366
5052Hz
st
DCLK right after the rise of
ENAB, is displayed on the left edge of the screen.
Vertical display position is specified by the rise of DE after a “Lo w” level period equivalent
to eight times of horizontal period. The 1
st
data corresponding to one horizontal line after the
rise the of ENAB is displayed at the top line of screen.
3.) If a period of DEB “High” is less than 1366 DCLK or less than 768 lines, the rest of the
screen displays black.
4.) The display position does not fit to the screen if a period of DE “High” and the effective
data period do not synchronize with each other.
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3-5 Color Input Data Reference
The brightness of each primary color (red, green and 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.
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4. Optical Specification
Optical characteristics are determined after the unit has been ‘ON’ and stable for approximately 45 minutes in a
dark environment at 25. The values specified are at an approximate distance 50cm from the LCD surface at a
viewing angle ofandequal to 0.
Fig.1 1 presents additional information concerning the measurement equipment and method.
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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 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.
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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