Doc. No. LTA320W2-L03 Rev.No. 1.0-050502 Page 1 / 25 Approval Customer : EG Issued Date : May. 02, 2005 Approved by : Any Modification of Spec is not allowed without SEC's permission. Senior Engineer : PREPARED BY : AMLCD Technical Customer Service Team Samsung Electronics Co . , LTD. SAMSUNG TFT-LCD MODEL NO.: LTA320W2-L03
LTA320W2-L03 is a color active matrix TFT (Thin Film Transistor) liquid crystal display (LCD) that uses amorphous silicon TFTs as a switching devices. This model is composed of a TFT LCD panel, a driver circuit and a back-light system. The resolution of a 32.0" contains 1366 x 768 pixels and can display up to 16.7 million colors with wide viewing angle of 85° or higher in all directions.
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3. Electrical Characteristics -------------------------- (9)3.1 TFT LCD Module3.2 Back-light Unit
4. Block Diagram -------------------------- (11)4.1 TFT LCD Module4.2 Back-light Unit
5. Input Terminal Pin Assignment -------------------------- (12)5.1 Input Signal & Power5.2 Inverter Input Pin Configuration5.3 LVDS Interface5.4 Input Signals, Basic Display Colors and Gray Scale of Each Color
6. Interface Timing -------------------------- (15)6.1 Timing Parameters (DE only mode)6.2 Timing Diagrams of interface Signal (DE only mode)6.3 Power ON/OFF Sequence6.4 Inverter B/D Sequence
LTA320W2-L03 is a color active matrix TFT (Thin Film Transistor) liquid crystal display(LCD) that uses amorphous silicon TFTs as a switching devices. This model is composed of aTFT LCD panel, a driver circuit and a back-light system. The resolution of a 32.0" contains1366 x 768 pixels and can display up to 16.7 million colors with wide viewing angle of 85° orhigher in all directions.
* Features
- High contrast ratio, high aperture structure- APVA(Advanced Patterned Vertical Align) mode- Wide viewing angle(±170°)- High speed response- WXGA(1366 x 768 pixels) resolution (16:9)- Low Power consumption- Direct Type 16 CCFL( Cold Cathode Fluorescent Lamp)- DE only mode- LVDS(Low-Voltage Differential Signal) interface.(1pixel/clock)
* Applications
Home-alone Multimedia TFT-LCD TVDisplay terminals for AV application productsHigh Definition TV (HD TV)
* General information
Items Specification Unit NoteDisplay area 697.6845(H) ×392.256(V) mm
Outline Dimension 760.0(H)×450.0(V)×50.0(D) mm Typical ValueDriver element a-Si TFT active matrixDisplay colors 16.7M(true) colors 16,777,216
Number of pixels 1366 x 768 pixel 16:9Pixel pitch 0.51075(H) × 0.51075(W) mm RGB Vertical Stripe
Note (1) Temperature and relative humidity range are shown in the figure below.93.8 % RH Max. ( 40 °C ≥ Ta )Maximum wet-bulb temperature at 39 °C or less. (Ta > 40 °C) No condensation.
(2) Abnormal visual problems by panel surface temperature can be occurred in specificrange. But materials(ex : polarizer) are not damaged permanently in this range, Tsur.
(3) 20ms, sine wave, 1 time for ±X, ±Y, ±Z axis(4) 10∼300Hz/1.5G
(11min/cycle, 30min for X,Y,Z axis)(5) At testing Vibration and Shock, the fixture in holding the Module to be tested have
to be hard and rigid enough so that the Module would not be twisted or bent by thefixture.
1.2 ELECTRICAL ABSOLUTE RATINGS
(Vss = GND = 0 V)
Item Symbol Min. Max. Unit NotePower Supply
VoltageLCD Module VDD Vss-0.5 6.5 V
(1)Inverter VCC Vss-0.5 25.2 V
NOTE (1) Within Ta ( 25 ± 2 °C)
0
20
40
60
80
100
-40 -20 0 20 40 60 80
5
90
Operating Range
Storage Range
Relative Humidity ( %RH)
Temperature (OC)
Item Symbol Min. Max. Unit Note
Storage temperature TSTG -20 65 ℃ (1)
Operating temperature(Ambient temperature)
TOPR 0 50 ℃ (1)Tsur 0 65 ℃ (2)
Shock ( non - operating ) Snop - 50 G (3),(5)
Vibration ( Non - operating ) Vnop - 1.5 G (4),(5)
The following items are measured under stable conditions. The optical characteristics should bemeasured in a dark room or equivalent state with the methods shown in Note (1).
* Ta = 25 ± 2°C , VDD=5.0V, fv= 60Hz, fDCLK=75 MHz, IL = 5.0mArms
Note 1) Test Equipment Setup
After stabilizing and leaving the panel alone at a given temperature for 30 min ,themeasurement should be executed. Measurement should be executed in a stable, windless, anddark room. 30 min after lighting the back-light. This should be measured in the center ofscreen.
A single lamp current : 5.0mA
Environment condition : Ta = 25 ± 2 °C
Item Symbol Condition Min. Typ. Max. Unit NoteContrast Ratio
3. Electrical Characteristics3.1 TFT LCD MODULE Ta = 25°C
Note (1) Main clock frequency is the value which is measured at the LVDS input transmitter.(2) fV=60Hz, fDCLK =75MHz, VDD = 5.0V, DC Current.(3) Power dissipation check pattern(LCD Module only)
(a) Black Pattern (b) White Pattern
(C) N-pattern
(4) Measurement Conditions (Rising time =470㎲)
Note : Control Signal : High(+5V) -->Low(Ground)All Signal lines to panel except for power 5V : GroundThe rising time of supplied voltage is controlled to 470us by R and C value.
Item Symbol Min. Typ. Max. Unit NoteVoltage of Power Supply VDD 4.5 5.0 5.5 V (1)
PowerConsumption
(a)BlackIDD
- 1000 - mA(2),(3)(b)White - 1250 - mA
(c)N-Pattern - 1500 2000 mAPower Consumption Pc - 7.5 10 Watt Module Only
The back-light system contains 16 direct-lighting type CCFTs (Cold Cathode Fluorescent Tube)
- Life time (Hr) of a lamp, 50,000hours, is defined as the time in which it continues tooperate under the condition of Ta = 25±2°C and Typical Luminance for a lamp until thebrightness becomes 50% or lower than it's original value.
3.2.1 Inverter Input Condition & Specification
Note(1) Power Consumption is measured when 500 of Luminance which is the typ. luminance.Max Value of the Power Consumption is measured at initial turn on of the Backlight.
Note(2) High-duty = On/(On+Off) * 100
Items Symbol ConditionsSpecifications
Unit NoteMin. Typ. Max.
Input Voltage Vin - 21.6 24 26.4 V Ta=25℃
Input Current Pin - - 5.0 - AdcAfter 2hrWarm upOutput Current
Io,max Vadim=3.3V 6.5 7.0 7.5mArms
Io,min Vadim=0V 3.5 4.0 4.5Power Consumption Pc Typ Luminance - 103 130 Watt (1)
BacklightOn/Off Control
On ON/OFF=High 2.4 - 5.0 V
Off ON/OFF=Low 0 - 0.8 V
Analog Dimming ADIM
Min. Luminance 0V
Max. Luminance 3.3
PWM Frequency Fpwm Vin=24, Vadim=3.3V 120 180 240 Hz
(a) When the module is assembled, It should be attached to the system firmlyusing every mounting holes. Be careful not to twist and bend the modules.
(b) Refrain from strong mechanical shock and / or any force to the module. Inaddition to damage, this may cause improper operation or damage to the moduleand CCFT back-light.
(c) Note that polarizers are very fragile and could be easily damaged. Do not pressor scratch the surface harder than a HB pencil lead.
(d) Wipe off water droplets or oil immediately. If you leave the droplets for a longtime, Staining and discoloration may occur.
(e) If the surface of the polarizer is dirty, clean it using some absorbent cotton orsoft cloth.
(f) The desirable cleaners are water, IPA(Isopropyl Alcohol) or Hexane.Do not use Ketone type materials(ex. Acetone), Ethyl alcohol, Toluene, Ethylacid or Methyl chloride. It might permanent damage to the polarizer due tochemical reaction.
(g) If the liquid crystal material leaks from the panel, it should be kept awayfrom the eyes or mouth . In case of contact with hands, legs or clothes, it mustbe washed away thoroughly with soap.
(h) Protect the module from static , it may cause damage to the CMOS Gate Array IC.
(i) Use finger-stalls with soft gloves in order to keep display clean during theincoming inspection and assembly process.
(j) Do not disassemble the module.
(k) Do not pull or fold the lamp wire.
(l) Do not adjust the variable resistor which is located on the module.
(m) Protection film for polarizer on the module shall be slowly peeled off just before useso that the electrostatic charge can be minimized.
(n) Pins of I/F connector shall not be touched directly with bare hands.
(a) Do not leave the module in high temperature, and high humidity for a long time.It is highly recommended to store the module with temperature from 0 to 35Cand relative humidity of less than 70%.
(b) Do not store the TFT-LCD module in direct sunlight.
(c) The module shall be stored in a dark place. It is prohibited to apply sunlight orfluorescent light during the store.
10.3 Operation
(a) Do not connect,disconnect the module in the "Power On" condition.
(b) Power supply should always be turned on/off by the item 6.3"Power on/off sequence"
(c) Module has high frequency circuits. Sufficient suppression to theelectromagnetic interference shall be done by system manufacturers. Groundingand shielding methods may be important to minimize the interference.
(d) The cable between the back-light connector and its inverter power supply shallbe a minimized length and be connected directly . The longer cable betweenthe back-light and the inverter may cause lower luminance of lamp(CCFT) andmay require higher startup voltage(Vs).
10.4 Operation Condition Guide
(a) LCD product supposed to be operated under circumstance of normal condition.Normal condition is defined as below;
(b) When the product is used for special application where operates LCD products in aspecial condition - sever then normal temperature or humidity or operation time ordisplay pattern -that may happen at Airport, Transit Station, Stock market, Bank, andControlling system Etc, please contact SEC and take application AMLCD engineersadvice. Otherwise, it may not be guaranteed its life time and function.
(a) Ultra-violet ray filter is necessary for outdoor operation.
(b) Avoid condensation of water. It may result in improper operation or disconnectionof electrode.
(c) Do not exceed the absolute maximum rating value. ( the supply voltage variation,input voltage variation, variation in part contents and environmental temperature,and so on) Otherwise the module may be damaged.
(d) If the module displays the same pattern continuously for a long period of time,itcan be the situation when the image "Sticks" to the screen.We recommend that you should discuss SEC when you want the module to beoperated in displaying the same pattern for a long time.
(e) This module has its circuitry PCB's on the rear side and should be handledcarefully in order not to be stressed.