LTA460WS-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 46.0"
contains 1366 x 768 pixels and can display up to 16.7 million colors with wide viewing
angle of 89° or higher in all directions.
*Features
- High contrast ratio, high aperture structure
- SPVA(Super Patterned Vertical Align) mode
- Wide viewing angle(±178°)
- High speed response
- WXGA (1366 x 768 pixels) resolution (16:9)
- Low Power consumption
- Direct Type 24 CCFTs(Cold Cathode Fluorescent Tube)
- LVDS (Low Voltage Differential Signal) interface. (1pixel/clock)
* Applications
Home-alone Multimedia TFT-LCD TV
Display terminals for AV application products
High Definition TV (HDTV)
The following items are measured under stable conditions.The optical characteristics
should be measured in a dark room or equivalent state with the methods shown in
Note (1).
◆
Measuring equipment:SR-3, BM-7
*Ta=25±2°C,V
ItemSymbol ConditionMin.Typ.Max.UnitNote
DD = 5V, fv = 60Hz, fDCLK =80MHz,IL=6.0mA
Contrast Ratio
(Center of screen)
Response
Time
Luminance of White
(Center of screen)
Color
Chromaticity
(CIE 1931)
Color Temperaturek-10000-
Color Gamut--72-%
RisingTr-1013
FallingTf-67
Red
Green
Blue
White
C/R
YL400500-cd/m
Rx
Ry0.333
Gx0.271
Gy0.592
Bx0.141
By0.066
Wx0.280
Wy0.290
Normal
L,R=0
θ
U,D=0
θ
Viewing
Angle
8001000-
0.648
TYP.
-0.03
+0.03
TYP.
msec
(3)
SR-3
(4),(9)
BM-7
(5)
2
SR-3
(6)
SR-3
L
Hor.
Viewing
Angle
Ver.
Brightness
Uniformity
(9 points)
Note 1) Test Equipment Setup
The measurement should be executed in a stable, windless and dark room
between 30min and 40min after lighting the back-light at the given temperature
for stabilization of the back-light. This should be measured in the center of screen.
Asinglelampcurrent:6.0mA
Environment condition : Ta= 25 ± 2 °C
The back-light system contains 24 direct-lighting type CCFTs (Cold Cathode Fluorescent
Tube). Life time (Hr) of a lamp, 50,000 hours, is defined as the time in which it
continues to operate under the condition of Ta = 25±2°C and typical luminance for a
lamp until the brightness becomes 50% or lower than it's original value.
Note)The waveform of the inverter output voltage must be area symmetric
and the design of the inverter must have specifications for the
modularized lamp. Specified values are for a single lamp.
The performance of the back-light, for example life time or brightness, is much
influenced by the characteristics of the DC-AC inverter for the lamp. 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 that a poor lighting caused
by the mismatch of the back-light and the inverter(miss lighting, flicker, etc.) never
occur.When you confirm it, the module should be operated in the same condition as
it is installed in your instrument.
Note (1) lamp current is measured with current meter.
Refer to the following block diagram of the back-light unit for more information.
5.1. Input Signal & Power : Connector FI-E30S (JAE)
No.SignalNo.Signal
1Do not connect*16GND
2Do not connect*17Rx33Do not connect*18Rx3+
4GND19GND
5Rx0-20Do not connect*
6Rx0+21LVDS OPTION **
7GND22Do not connect*
8Rx1-23GND
9Rx1+24 GND
(a) When the module is assembled into a system, it should be attached firmly
using all mounting holes. Be careful not to twist and bend the modules.
(b) Refrain from strong mechanical shock and / or any force to the module. In
addition to damage, this maycause improper operation or damage to the
module and CCFL back-light.
(c) Note that polarizers are very fragile and can be easily damaged. Do not press
or scratch the surface harder than a HB pencil lead.
(d) Wipe offwater droplets or oil immediately.If you leave the droplets fora
long time, Stainingand discoloration may occur.
(e) Ifthe surface of the polarizeris dirty,clean it using absorbent cotton or soft
cloth.
(f) The desirable cleaners arewater, IPA(Isopropyl Alcohol) or Hexane. Do not use
Ketone type materials (ex. Acetone), Ethyl alcohol, Toluene, Ethyl acid or Methyl
chloride. It may cause permanent polarizer damage due to the chemical reaction.
(g) Ifthe liquid crystal material leaks from the panel,it should be keptaway
from the eyes and mouth. In case of contact with skin or clothes, thoroughly
wash it away with soap and water.
(h) Protect the module from static electricity. It may cause damageto the C-MOS
Gate Array IC.
(i) Use finger-stalls with soft gloves to keep display clean during the incoming
inspection and the assembly process.
(j) Do not disassemble the module.
(k) Do not pull or fold the lamp wire.
(l) Do not adjust the variable resistor located on the back side.
(m) I/F connector pins should not be touched directly with bare hands.
(a) Do not expose the module in high temperature, and/or high humidity for a long
time. It is highly recommended to store the module within the temperature
from 0 to 35°C and relative humidity of less than 70%.
(b) Do not store the TFT-LCD module in direct sunlight. The module shall be stored
in a dark place. Prolonged exposure to sunlight or fluorescent lightduring the
storagewilldamagethemodule.
10.3 Operation
(a)Do not connect or disconnectthe module in the “Power On” condition.
(b)Power supply should always be turned on/offby followingitem 6.3
" Power on/off sequence ".
(c)The 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 minimize the
interference.
(d)The cable between the back-light connectorand its inverter power supply
should be at the minimum length possible to be connected directly.The
longer cable between the back-light and the inverter may cause lower
luminance of lamp(CCFT) and may require higher startup voltage(Vs).
10.4 Operation Condition Guide
(a)The LCD product should be operated under normal conditions.
(b)If the product will be used in extreme conditions such as high temperature,
humidity, display patterns or operation time etc.., It is strongly recommended
to contact SEC for Application engineering advice. Otherwise, its reliability and
function may not be guaranteed. Extreme conditions are commonly found at
Airports, Transit Stations, Banks, Stock market, and Controlling systems.
(a)Use Ultra-violet light filters if outdoor operation is necessary.
(b)Avoidwater condensation. Moisture may penetrate sensitive electrical
connections resulting in improper operation.
(c)Do not exceed the absolute maximum rating values. (supply voltage
variation, input voltage variation, variation in part contents and environmental
temperature, etc..) Otherwise, the module may be damaged.
(d)If the module displays the same pattern continuously for a long period of
time, it can result in the situation where the image “sticks” (remains) on the
screen. We recommend that you should discuss SEC when you want the
module to be operated in displaying the same pattern for a long time.
(e)The module has sensitive PCB circuitry on the back side and should be
handled carefully in order prevent stress and possible failure.