Any modification of Spec is not allowed without SEC’s permission
The information described in this SPEC is preliminary and can be changed without prior notice.
APPROVED BY :
PREPARED BY :
Jonathan KANG
Application Engineering Group
Samsung Electronics Co., Ltd.
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
/ 30LTN140AT26-8
1
Page 2
CONTENTS
5.4 Input Signals, Basic Display Colors and Gray Scale of Each Color.
Approval
Revision History
General Description
1. Absolute Maximum Ratings
1.1 Absolute Ratings of environment
1.2 Electrical Absolute Ratings
2. Optical Characteristics
3. Electrical Characteristics
3.1 TFT LCD Module
3.2 Backlight Unit
3.3 LED Driver
4. Block Diagram
4.1 TFT LCD Module
5. Input Terminal Pin Assignment
5.1 Input Signal & Power
5.2 LVDS Interface
5.3 Timing Diagrams of LVDS For Transmitting
- - - - - - - - - - - - - - - - - - - ( 3 )
- - - - - - - - - - - - - - - - - - - ( 4 )
- - - - - - - - - - - - - - - - - - - ( 5 )
- - - - - - - - - - - - - - - - - - - ( 7 )
- - - - - - - - - - - - - - - - - - - ( 10 )
- - - - - - - - - - - - - - - - - - - ( 13 )
- - - - - - - - - - - - - - - - - - - ( 14 )
5.5 Pixel format
5.6 LED Driver Connector & Pin Assignment
6. Interface Timing
6.1 Timing Parameters
6.2 Timing Diagrams of interface Signal
6.3 Power ON/OFF Sequence
7. Outline Dimension
8. Packing
9. Markings & Others
10. General Precautions
- - - - - - - - - - - - - - - - - - - ( 21 )
- - - - - - - - - - - - - - - - - - - ( 23 )
-- - - - - - - - - - - - - - - - - - ( 25 )
-- - - - - - - - - - - - - - - - - - ( 26 )
- - - - - - - - - - - - - - - - - - - ( 28 )
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
/ 30LTN140AT26-8
2
Page 3
REVISION HISTORY
Approval
DateRevision No.Page
Aug, 30, 2011A00AllThe specification of LTN140AT26-8 model was issued first.
Summary
CODE REVISION HISTORY
DateModel.Revision No.SummaryMP or EOL
803Basic model
Aug,30,2011
LTN140AT26-8
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
/ 30LTN140AT26-8
3
Page 4
Approval
•
If the usage of this product is not for PC application, but for others, please contact SEC
GENERAL DESCRIPTION
DESCRIPTION
LTN140AT26 is a color active matrix TFT (Thin Film Transistor) liquid crystal display
(LCD) that uses amorphous silicon TFT as switching devices. This model is composed of a
TFT LCD panel, a driver circuit and a backlight unit. The resolution of a 14.0" contains
1366 x 768 pixels and can display up to 262,144 colors. 6 O'clock direction is the optimum
viewing angle.
FEATURES
• High contrast ratio
• HD (1366 x 768 pixels ) resolution
• Low power consumption
• Fast response time
• LED Back Light with embedded LED Driver
• DE (Data enable) only mode
• 3.3V LVDS Interface
• Onboard EEDID chip
• Green product (RoHS compliant)
APPLICATIONS
• Notebook PC
GENERAL INFORMATION
ItemSpecificationUnitNote
Display area
Driver element
Display colors
Number of pixel
Pixel arrangement
Pixel pitch
Display Mode
309.399(H) x 173.952(V) ( 14.0” HD diagonal )mm
a-Si TFT active matrix
262,144
1366 x 768pixel16:9
RGB vertical stripe
0.2265(H) x 0.2265(V) (TYP.)mm
Normally white
Surface treatment
Samsung Secret
Doc.No.Rev.No
Haze 25, Hard-Coating 3H
04-A00-G-110830
Page
Anti-
Glare
4
/ 30LTN140AT26-8
Page 5
Mechanical Information
ItemMin.Typ.Max.UnitNote
Horizontal (H)323.0323.5324.0mm
Module
size
Note (1) Measurement condition of outline dimension
Note (1) Temperature and relative humidity range are shown in the figure below.
95 % RH Max. (40 °C ≥ Ta)
Maximum wet - bulb temperature at 39 OC or less. (Ta > 40 °C ) No condensation
100
90
80
60
40
20
TOPR050°C(1)
Relative Humidity ( %RH)
( 40,90 )
Operating Range
( 50,50.4 )
( 60,27.7 )
Storage Range
5
0
-40-20020406080
Temperature (OC)
(2) 2ms, half sine wave, one time for ±X, ±Y, ± Z.
(3) 5 - 500 Hz, random vibration, 30min for X, Y, Z.
(4) 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 the fixture.
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
/ 30LTN140AT26-8
5
Page 6
1.2 ELECTRICAL ABSOLUTE RATINGS
(1) TFT LCD MODULE
ItemSymbolMin.Max.UnitNote
Power Supply VoltageVDDVDD - 0.3VDD + 0.3V(1)
Logic Input VoltageVINVDD - 0.3VDD + 0.3V(1)
Note (1) Within Ta (25 ± 2 °C )
(2) BACK-LIGHT UNIT
ItemSymbolMin.Typ.Max.UnitNote
Approval
VDD =3.3V, VSS = GND = 0V
Ta = 25 ± 2 °C , Duty = 100%
LED CurrentI
LED VoltageF
Note (1) Permanent damage to the device may occur if maximum values are exceeded
Functional operation should be restricted to the conditions described under normal operating conditions.
L
L
-25-mA(1)
3.03.23.4V(1)
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
/ 30LTN140AT26-8
6
Page 7
Approval
Color
Color
GY0.580
2. OPTICAL CHARACTERISTICS
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 (5).
Measuring equipment : TOPCON SR-3
* Ta = 25 ± 2 °C, VDD=3.3V, fv= 60Hz, fDCLK = 72.33MHz, IF = 25 mA
Note 2) Definition of Contrast Ratio (CR) : Ratio of gray max (Gmax) ,gray min (Gmin)
at 5 points(4, 5, 7, 9, 10)
CR(4) + CR(5) + CR(7) + CR(9) + CR(10)
CR =
5
Points : , , , , at the figure of Note (6).
49
5
7
10
Note 3) Definition of Response time :
Display data
White(TFT OFF)White(TFT OFF)
TR
Black(TFT ON)
TF
100%
90%
Optical
Response
10%
0%
o
Note 4) Definition of Average Luminance of White : measure the luminance of white at 5 points.
25%50%75%
Average Luminance of White ( YL,AVE )
YL4 + YL5 + YL7 + YL9 + YL10
10
9
7
YL,AVE =
5
5
4
: test point
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Time
VIEW AREA
25%
50%
75%
(lines)
Page
/ 30LTN140AT26-8
8
Page 9
Approval
Note 5) After stabilizing and leaving the panel alone at a given temperature for 30 min , the measurement
should be executed. Measurement should be executed in a stable, windless,and dark room.
30 min after lighting the backlight. This should be measured in the center of screen.
IF current : 25 mA
Environment condition : Ta = 25 ± 2 °C
Photo-detector
( TOPCON SR-3 )
Field = 2°
50 cm
TFT-LCD module
Center of the screen
[ Optical characteristics measurement setup ]
Note 6) Definition of 13 points white variation (δ L ), CR variation( CVER ) [ ~ ]
Maximum luminance of 13 points
LCD panel
113
δ L=
Minimum luminance of 13 points
10mm
11
25%
10mm
10mm
25%50%
1312
10
75%
9
8
5
3
10mm
Samsung Secret
Doc.No.Rev.No
7
4
2
04-A00-G-110830
6
50%
75%
1
: test point
Page
/ 30LTN140AT26-8
9
Page 10
3. ELECTRICAL CHARACTERISTICS
(2) f
V
= 60Hz, f
DCLK
= 72.33MHZ, V
DD
= 3.3V , DC Current.
3.1 TFT LCD MODULE
ItemSymbolMin.Typ.Max.UnitNote
Voltage of Power SupplyVDD3.03.33.6V
Approval
Ta= 25 ± 2°C
Differential Input
Voltage for LVDS
Receiver Threshold
Vsync Frequencyfv-60-Hz
Main FrequencyfDCLK-72.3385MHz
Rush CurrentIRUSH--1.5A(4)
Current of Power
Supply
Note (1) Display data pins and timing signal pins should be connected.( GND = 0V )
(3) Power dissipation pattern
*a) White Pattern*b) Mosaic Pattern
HighVIH--+100mVVCM = +1.2V
LowVIL-100--mV
White
Mosaic-210240mA(2),(3)*b
V. stripe-335350mA(2),(3)*c
IDD
-210-mA(2),(3)*a
VIEW AREA
Samsung Secret
Doc.No.Rev.No
Display Brightest Gray Level
Display Darkest Gray Level
04-A00-G-110830
Page
10
/ 30LTN140AT26-8
Page 11
*c) 1dot Vertical stripe pattern
R1
C1
4) Rush current measurement condition
Approval
R G B R G B R G B R G
G B R G B R G B R G
R
G B R G B R G B R G
R
R G B R G B R G B R G
CONTROL SIGNAL
(HIGH to LOW)
3.3V
47K
R2
1K
12V
C3
1uF
R3
47K
VDD rising time is 470us
M1
2SK1059
C2
10000pF
0.9VDD
VDD ( LCD INPUT)
FUSE
1uF
M2
2SK1399
3.3V
0.1VDD
GND
Samsung Secret
Doc.No.Rev.No
470us
04-A00-G-110830
Page
11
/ 30LTN140AT26-8
Page 12
Approval
Input Current
I-25-mA
-
3.2 BACK-LIGHT UNIT
Ta= 25 ± 2 °C
ItemSymbolMin.Typ.Max.UnitNote
LED Forward CurrentIF275mA
LED Forward VoltageVF3.03.23.4V
LED Array VoltageVP-32-VVF X 10LEDs
Operating Life TimeHr12,000--Hour(1)
Note (1) Life time (Hr) of LEDs can be defined as the time in which it continues to operate under the
condition Ta= 25 ± 2 °C and IF = 27 mArms until one of the following event occurs.
1. When the brightness becomes 50% or lower than the original.
3.3 LED Driver
Ta= 25 ± 2 °C
Item-SymbolMin.Typ.Max.UnitNote
Input VoltageVin71220V-
EN control level
PWM control level
PWM Control Duty
Ratio
External PWM
Dimming Control
Frequency (BLIM)
Note (1) Test Equipment : Fluke 45
ON2--V
OFF--0.8V
ON2--V
OFF--0.8V
D10-100%
FBLIM-110kHz
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
12
/ 30LTN140AT26-8
Page 13
4. BLOCK DIAGRAM
4.1 TFT LCD Module
LTN140AT26-8 Circuit Block Diagram
Approval
4.2 LED connection and placement
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
13
/ 30LTN140AT26-8
Page 14
5. INPUT TERMINAL PIN ASSIGNMENT
16
GND
Ground
Approval
5.1. Input Signal & Power (LVDS, Connector : 20455-040E-0 by I-PEX or equivalent )
No.SignalDescription
1NCNo Connection
2~3AVDDPower Supply, 3.3V ( typical)
4DVDDDDC 3.3V power
5NCNo Connection
6SCLDDC Clock
7SDADDC Data
8Rin0--LVDS differential data input (R0-R5, G0)
9Rin0++LVDS differential data input (R0-R5, G0)
10GNDGround
11Rin1--LVDS differential data input (G1-G5, B0-B1)
12Rin1++LVDS differential data input (G1-G5, B0-B1)
13GNDGround
14Rin2--LVDS differential data input (B2-B5, HS, VS, DE)
15Rin2++LVDS differential data input (B2-B5, HS, VS, DE)
17ClkIN--LVDS differential clock input
18ClkIN++LVDS differential clock input
19GNDGround
20~21NCNo Connection
22GNDGround
23~24NCNo Connection
25GNDGround
26~27NCNo Connection
28GNDGround
29~30NCNo Connection
31~33VBL-LED Ground
34NCNo Connection
35BLIMPWM for luminance control (200~1KHz, 3.3V, 10~100%)
36BL_EnableBL On/Off (On:2.0~3.3V, Off: 0~0.5V)
37NCNo Connection
38~40VBL+LED Power Supply 5.5V~20V
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
14
/ 30LTN140AT26-8
Page 15
5. 2 LVDS Interface
LVDS Clock Ratio
TOD455055
%
5.2.1 LVDS DC Input
ITEMSYMBOLMIN.TYP.MAX.UNITNOTE
LVDS Differential VoltageVid200200400mV
Approval
Input Common Mode
Voltage
5.2.2 LVDS AC Input
ITEMSYMBOLMIN.TYP.MAX.UNITNOTE
PLL Lock Time
LVDS RX Skew
(Strobe) Right Margin
85MHz
50MHz
V
CM
0.41.21.6V
--20
400-400
T
RSRM
600-600
µsec
ps
ps
(1),(2)
(1),(2)
LVDS RX Skew
(Strobe) Left Margin
85MHz
50MHz
T
RSLM
SSC Modulation Rate
SSC Modulation Frequency
Note (1) : LVDS Receiver Skew (Strobe) Margin
Samsung Secret
400-400
600-600
±
0.05
-
30200300
±
ps
ps
3
%
KHz
(1),(2)
(1),(2)
(3)
(3)
Doc.No.Rev.No
04-A00-G-110830
Page
15
/ 30LTN140AT26-8
Page 16
Note (2) : Ideal Strove Positions for LVDS Input
Approval
Note (3) : SSC ( Spread Spectrum Clock)
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
16
/ 30LTN140AT26-8
Page 17
5.2 LVDS Interface : Transmitter SN75LVDS86 or Compatible
Pin No.NameRGB SignalPin No.NameRGB Signal
51TxIN0R014TxIN14G5
52TxIN1R115TxIN15B0
54TxIN2R219TxIN18B1
55TxIN3R320TxIN19B2
56TxIN4R422TxIN20B3
3TxIN6R523TxIN21B4
4TxIN7G024TxIN22B5
6TxIN8G127TxIN24Hsync
7TxIN9G228TxIN25Vsync
Approval
11TxIN12G330TxIN26DE
12TxIN13G431TxCLKINClock
LVDS INTERFACE
Graphics controller
18-bit
Note : The LCD Module uses a 100ohm resistor between positive and negative lines of each
receiver input.
Rn: Red gray, Gn: Green gray, Bn: Blue gray (n=gray level)
Note 2)Input signal: 0 =Low level voltage, 1=High level voltage
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
19
/ 30LTN140AT26-8
Page 20
5.5 Pixel Format in the display
Approval
Line 1
Line 768
1
R G B R G B
R G B R G B
1366
LTN140AT26-8 Panel
R G B R G BR G B R G B
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
20
/ 30LTN140AT26-8
Page 21
6. INTERFACE TIMING
6.1 Timing Parameters
SignalItemSymbolMin.Typ.Max.UnitNote
Frame FrequencyCycleTV780790980Lines
Approval
Vertical Active
Display Term
One Line
Scanning Time
Horizontal Active
Display Term
Display
Period
CycleTH144015261800Clocks
Display
Period
TVD-768-Lines
THD-1366-Clocks
6.2 Timing diagrams of interface signal
TVD
DE
TV
DCLK
TC
DE
DATA
SIGNALS
Samsung Secret
Doc.No.Rev.No
TH
THD
Valid display data ( 1366 clocks)
04-A00-G-110830
Page
21
/ 30LTN140AT26-8
Page 22
6.3 Power ON/OFF Sequence
Approval
: To prevent a latch-up or DC operation of the LCD module, the power on/off sequence
should be as the diagram below.
Power Supply VDD
0.1 V
0V
Signals
0 V
LED Power (Vin)
PWM for LED driver
(Dimming signal)
Enable signal for LED driver
(Backlight on/off)
0.9 V
DD
0.1 LED V
DD
T1
T2
0.9 LED V
in
in
T12
T5
T8
T10
VALID
T9
T11
T13
T6
T3
0.9 LED V
0.1 LED V
0.9 V
T7
in
DD
0.1 V
DD
T4
in
Power ON/OFF Sequence
Timing (ms)Remarks
0.5<T1≤10
0<T2 ≤50
0<T3 ≤50
500 ≤T4
200 ≤T5
200 ≤T6
0<T7 ≤10
0.5<T8≤10
0.5<T9≤10
0 ≤T10
0≤T11
0≤T12
0 ≤T13
VDDrising time from 10% to 90%
Delay from VDDto valid data at power ON
Delay from valid data OFF to VDDOFF at power Off
VDDOFF time for Windows restart
Delay from valid data to B/L enable at power ON
Delay from valid data off to B/L disable at power Off
VDDfalling time from 90% to 10%
LED V
rising time from 10% to 90%
in
LED V
falling time from 90% to 10%
in
Delay from LED driver Vin rising time 90% to PWM ON
Delay from PWM Off to LED driver Vin falling time 10%, Must Keep rule
Delay from PWM ON to B/L Enable ON, Must Keep rule
Delay from B/L Enable Off to PWM Off
Power Sequence & Timing Parameters
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
22
/ 30LTN140AT26-8
Page 23
7. Mechanical Outline Dimension
Refer to the next page
Approval
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
23
/ 30LTN140AT26-8
Page 24
This page will be replaced with the outline drawing after
producing PDF file.
Approval
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
24
/ 30LTN140AT26-8
Page 25
8. PACKING
1. CARTON (Internal Package)
(1) Packing Form
Corrugated Cardboard box and EPS form as shock absorber
(2) Packing Method
Approval
Note (1) Total : Approx. 10.7 Kg
(2) Acceptance number of piling : 15 sets
(3) Carton size : 347.5(W) X 375(L) X 246(H)
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
25
/ 30LTN140AT26-8
Page 26
(3)Packing Material
Year
NoPart nameQuantity
1Static electric protective sack30 pcs
Approval
2
3Pictorial marking2 pcs
4Carton1 set
Packing case (Inner box)
1 set
included shock absorber
9. MARKINGS & OTHERS
A nameplate bearing followed by is affixed to a shipped product at the
specified location on each product.
(1)Parts number : LTN140AT26
(2)Revision code : 3 letters
(3)Lot number : X X X X XXX XX X 8**
SEC Revision Code
Panel number
Cell ID
Lot ID
Month
(4) Nameplate Indication
1127
MADE IN CHINA
Parts name : LTN140AT26
Lot number : XXXXXXXXXX
USPXXXXXXX/USPXXXXXXX : Related patent Num.
Inspected work week : 1127 (2011 year, 27th week)
Product revision Code : 8**
Product Code
Line
LTN140AT26
XXXXXXXXXX
USPXXXXXXX/USPXXXXXXX
80 mm
40 mm
8**
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
26
/ 30LTN140AT26-8
Page 27
(5) Packing small box attach
DEVICE : LTN140AT26
TYPE : 8**
QUANTITY : 30 PCS
CO*******
Approval
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
27
/ 30LTN140AT26-8
Page 28
Approval10. GENERAL PRECAUTIONS
withsoap.
1. Handling
(a) When the module is assembled, It should be attached to the system firmly
using 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. In addition to
damage, this may cause improper operation or damage to the module and LED back-light.
(c) Note that polarizers are very fragile and could be easily damaged. Do not press or scratch
the surface harder than a HB pencil lead.
(d) Wipe off water droplets or oil immediately. If you leave the droplets for a long time,
Staining and discoloration may occur.
(e) If the surface of the polarizer is dirty, clean it using some absorbent cotton or soft cloth.
(f) The desirable cleaners are water, IPA (Isoprophyl Alcohol) or Hexane.
Do not use Ketone type materials(ex. Acetone), Ethyl alcohol, Toluene, Ethyl acid or Methyl
chloride. It might permanent damage to the polarizer due to chemical reaction.
(g) If the liquid crystal material leaks from the panel, it should be kept away from the eyes or
mouth . In case of contact with hands, legs or clothes, it must be washed away thoroughly
(h) Protect the module from static , it may cause damage to the C-MOS Gate Array IC.
(i) Use fingerstalls with soft gloves in order to keep display clean during the incoming
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 back side.
(m) Protection film for polarizer on the module shall be slowly peeled off just before use so
that the electrostatic charge can be minimized.
(n) Pins of I/F connector shall not be touched directly with bare hands.
Doc.No.Rev.No
Samsung Secret
04-A00-G-110830
Page
28
/ 30LTN140AT26-8
Page 29
2. STORAGE
ITEMUnitMin.Max.
Storage Temperature(℃)540
Storage Humidity(%rH)3575
Storage life12 months
- The storage room should provide good ventilation and temperature control.
- Products should not be placed on the floor, but on the Pallet away from
a wall.
- Prevent products from direct sunlight, moisture nor water; Be cautious of
Approval
Storage Condition
a build up of condensation.
- Avoid other hazardous environment while storing goods.
- If products delivered or kept in conditions of over the storage period of 3
months, the recommended temperature or humidity range,
we recommend you leave them at a temperature of 20℃and a humidity
of 50% for 24 hours.
3. OPERATION
(a) Do not connect,disconnect the module in the “ Power On” condition.
(b) Power supply should always be turned on/off by following item 6.3
“ Power on/off sequence “.
(c) 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 standard limited warranty is only applicable when the module is used for general
notebook applications. If used for purposes other than as specified, SEC is not to be
held reliable for the defective operations. It is strongly recommended to contact SEC
to find out fitness for a particular purpose.
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
29
/ 30LTN140AT26-8
Page 30
Approval
4. OTHERS
(a) Ultra-violet ray filter is necessary for outdoor operation.
(b) Avoid condensation of water. It may result in improper operation or disconnection
of electrode.
(c) Do not exceed the absolute maximum rating value. ( the supply voltage variation, input
voltage variation, variation in part contents and environmental temperature, so on)
Otherwise the module may be damaged.
(d) If the module displays the same pattern continuously for a long period of time,it can be
the situation when the image “sticks” to the screen.
(e) This module has its circuitry PCB’s on the rear side and should be handled carefully in
order not to be stressed.
Samsung Secret
Doc.No.Rev.No
04-A00-G-110830
Page
30
/ 30LTN140AT26-8
Loading...
+ hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.