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LP140WH1
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Preliminary Specification
( ) Final Specification
Title 14.0"W HD TFT LCD
Customer ACER SUPPLIER LG Display Co., Ltd.
MODEL *MODEL LP140WH1
Suffix TLA1
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY SIGNATURE APPROVED BY SIGNATURE
K. S. Kwon / S.Manager
/
REVIEWED BY
/
C. I. Kim / Manager
/ PREPARED BY
J. W. Kim / Engineer
Y. S. Kim / Engineer
Please return 1 copy for your confirmation with Products Engineering Dept.
your signature and comments. LG Display Co., Ltd
Ver. 1.0 Oct. 17, 2008 1 / 33
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LP140WH1
Liquid Crystal Display
Product Specification
Contents
No ITEM Page
COVER 1
CONTENTS 2
RECORD OF REVISIONS 3
1 GENERAL DESCRIPTION 4
2 ABSOLUTE MAXIMUM RATINGS 5
3 ELECTRICAL SPECIFICATIONS
3-1 ELECTRICAL CHARACTREISTICS 6
3-2 INTERFACE CONNECTIONS 7
3-3 LVDS SIGNAL TIMING SPECIFICATION 8-9
3-3 SIGNAL TIMING SPECIFICATIONS 9
3-4 SIGNAL TIMING WAVEFORMS 10
3-5 COLOR INPUT DATA REFERNECE 11
3-6 POWER SEQUENCE 12
4 OPTICAL SFECIFICATIONS 13-16
5 MECHANICAL CHARACTERISTICS 17-25
6 RELIABLITY 26
7 INTERNATIONAL STANDARDS
7-1 SAFETY 27
7-2 EMC 27
8 PACKING
8-1 DESIGNATION OF LOT MARK 28
8-2 PACKING FORM 28
9 PRECAUTIONS 29-30
A APPENDIX. Enhanced Extended Display Identification Data 31-33
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LP140WH1
Liquid Crystal Display
Product Specification
RECORD OF REVISIONS
EDID
Revision No Revision Date Page Description
ver
0.0 Jun. 17. 2008 - First Draft (Preliminary Specification) 0.0
0.1 Aug. 13, 2008 7 CN1 Pin #1 update (GROUND NC)
0.2 Aug. 14, 2008 18 Rear view update
0.3 Aug. 25, 2008 18,19 Rear view drawing update
0.4 Sep. 26, 2008 6 Update ELECTRICAL CHARACTERISTICS 0.1
13 Update color coordinates spec.
14 Update Gray scale spec.
16 Insert Viewing Angle description page.
19 Update Rear view Drawing
27 Update color coordinates EDID data (Ver. 0.0 0.1)
29 Change EDID Checksum (E4 EC)
1.0 Oct. 17, 2008 - Final Draft 1.0
Ver. 1.0 Oct. 17, 2008 3 / 33
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LP140WH1
Liquid Crystal Display
Product Specification
1. General Description
The LP140WH1 is a Color Active Matrix Liquid Crystal Display with an integral LED 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. This TFT-LCD has 14.0 inches diagonally measured active display area with HD
resolution(768 vertical by 1366 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 6-bit gray scale signal for each dot, thus, presenting a palette of more than 262,144
colors.
The LP140WH1 has been designed to apply the interface method that enables low power, high speed, low
EMI.
The LP140WH1 is intended to support applications where thin thickness, low power are critical factors and
graphic displays are important. In combination with the vertical arrangement of the sub-pixels, the
LP140WH1 characteristics provide an excellent flat display for office automation products such as Notebook
PC.
'
General Features
Active Screen Size 14.0 inches diagonal
Outline Dimension 323.5(H, typ) 192.0(V, typ) 5.2(D,max) [mm]
Pixel Pitch 0.2265mm 0.2265 mm
Pixel Format 1366 horiz. By 768 vert. Pixels RGB strip arrangement
Color Depth 6-bit, 262,144 colors
Luminance, White 220 cd/m2(Typ.5 point)
Power Consumption Total 4.5 Watt(Typ.) @ LCM circuit 1.4 Watt(Typ.), B/L input 3.1 Watt(Typ.)
Weight 350g (Max.)
Display Operating Mode Transmissive mode, normally white
Surface Treatment Hard Coating(3H), Glare treatment of the front polarizer
RoHS Comply Yes
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LP140WH1
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
Values
Parameter Symbol Units Notes
Min Max
Power Input Voltage VCC -0.3 4.0 Vdc at 25 r 5qC
Operating Temperature TOP 0 50 qC 1
Storage Temperature HST -20 60 qC 1
Operating Ambient Humidity HOP 10 90 %RH 1
Storage Humidity HST 10 90 %RH 1
Note : 1. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 39qC Max, and no condensation of water.
90% 80%
60 60%
Wet Bulb 50
Humidity[(%)RH]
Temperature [ ] Storage
40 40%
30 Operation
20
20%
10
0
10%
-20 0 10 20 30 40 50 60 70 80
Dry Bulb Temperature [ ]
Ver. 1.0 Oct. 17, 2008 5 / 33
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LP140WH1
Liquid Crystal Display
Product Specification
3. Electrical Specifications
3-1. Electrical Characteristics
The LP140WH1 requires two power inputs. One is employed to power the LCD electronics and to drive the
TFT array and liquid crystal. The second input which powers the LED BL.
Table 2. ELECTRICAL CHARACTERISTICS
Values
Parameter Symbol Unit Notes
Min Typ Max
MODULE :
Power Supply Input Voltage VCC 3.0 3.3 3.6 VDC
Power Supply Input Current ICC - 430 495 mA 1
Power Consumption Pc - 1.4 1.6 Watt 1
Differential Impedance Zm 90 100 110 Ohm 2
Inrush Current Irush 1500 mA
LED Backlight ( With LED Driver )
Operating Current per string ILED - 20 - mA 3
Power Consumption PLED - 3.6 3.9 Watt 4
Life Time 12,000 - - Hrs 5
VLED 7.0 20 V
PWM Input Signal
Frequency FPWM 120 1000 Hz
On Duty Don 3 %
Voltage Level VPWM 2.9 V
LED_EN
Voltage Level VLED_EN 2.9 V
Note)
1. The specified current and power consumption are under the Vcc = 3.3V , 25 , fv = 60Hz condition
whereas Mosaic pattern is displayed and fv is the frame frequency.
2. This impedance value is needed to proper display and measured form LVDS Tx to the mating connector.
3. The typical operating current is for the typical surface luminance (LWH) in optical characteristics.
ILED is the current of each LED's string, LED backlight has 6 strings on it.
4. The LED power consumption shown above includes power of internal LED driver circuit for typical current
condition.
5. The life time is determined as the time at which brightness of LCD is 50% compare to that of initial value
at the typical LED current.
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LP140WH1
Liquid Crystal Display
Product Specification
3-2. Interface Connections
This LCD employs two interface connections, a 40 pin connector is used for the module electronics interface
and the other connector is used for the integral backlight system.
The electronics interface connector is a model CABLINE-VS RECE ASS'Y manufactured by I-PEX.
Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)
Pin Symbol Description Notes
1 NC Reserved
2 VCC Power Supply, 3.3V Typ.
3 VCC Power Supply, 3.3V Typ.
1, Interface chips
4 V EEDID DDC 3.3V power
1.1 LCD : SW, SW0624 (LCD Controller)
5 NC No Connection including LVDS Receiver
6 Clk EEDID DDC Clock 1.2 System : THC63LVDF823A
7 DATA EEDID DDC Data or equivalent
* Pin to Pin compatible with LVDS
8 Odd_RIN 0- Negative LVDS differential data input
9 Odd_RIN 0+ Positive LVDS differential data input 2. Connector
10 GND Ground 2.1 LCD : CABLINE-VS RECE ASS'Y, I-PEX
or its compatibles
11 Odd_RIN 1- Negative LVDS differential data input
2.2 Mating : CABLINE-VS PLUG CABLE
12 Odd_RIN 1+ Positive LVDS differential data input ASS'Y or equivalent.
13 GND Ground 2.3 Connector pin arrangement
14 Odd_RIN 2- Negative LVDS differential data input
15 Odd_RIN 2+ Positive LVDS differential data input
16 GND Ground
17 Odd_CLKIN- Negative LVDS differential clock input
18 Odd_CLKIN+ Positive LVDS differential clock input
[LCD Module Rear View]
19 GND Ground
20 NC No Connection 3, Pin connection for LED IC
1.1 Pin #35 should not connect with Pin #36.
21 NC No Connection
19 GND Ground
23 NC No Connection
24 NC No Connection
19 GND Ground
26 NC No Connection
27 NC No Connection
19 GND Ground
29 NC No Connection
30 NC No Connection
31 VLED_GND LED Ground
32 VLED_GND LED Ground
33 VLED_GND LED Ground
34 NC Reserved
35 PWM PWM for luminance control(200Hz ~ 1000Hz)
36 LED_EN Backlight On/Off Control
37 NC No Connection (Reserved)
38 VLED LED Power Supply (7V-20V)
39 VLED LED Power Supply (7V-20V)
40 VLED LED Power Supply (7V-20V)
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LP140WH1
Liquid Crystal Display
Product Specification
3-3. LVDS Signal Timing Specifications
3-3-1. DC Specification
Symb
Description Min Max Unit Notes
ol
LVDS Differential Voltage |VID| 100 600 mV -
LVDS Common mode Voltage VCM 0.6 1.8 V -
LVDS Input Voltage Range VIN 0.3 2.1 V -
3-3-2. AC Specification
Description Symbol Min Max Unit Notes
85MHz > Fclk
tSKEW - 400 + 400 ps
65MHz
LVDS Clock to Data Skew Margin
65MHz > Fclk
tSKEW - 600 + 600 ps
25MHz
LVDS Clock to Clock Skew Margin (Even
tSKEW_EO - 1/7 + 1/7 Tclk -
to Odd)
Maximum deviation
FDEV - 3 % -
of input clock frequency during SSC
Maximum modulation frequency
FMOD - 200 KHz -
of input clock during SSC
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LP140WH1
Liquid Crystal Display
Product Specification
< Clock skew margin between channel >
Freq.
Fmax
Fcenter
Fmin
Time
< Spread Spectrum >
3-3-3. Data Format
1) LVDS 1 Port
RCLK+
RA+/- R3 R2 R1 R0 G0 R5 R4 R3 R2 R1 R0 G0 R5 R4
RB+/- G4 G3 G2 G1 B1 B0 G5 G4 G3 G2 G1 B1 B0 G5
RC+/- B5 B4 B3 B2 DE VSYNC HSYNC B5 B4 B3 B2 DE VSYNC HSYNC
RD+/- G7 G6 R7 R6 X B7 B6 G7 G6 R7 R6 X B7 B6
Previous (N-1)th Cycle Current (Nth ) Cycle Next (N+1)th Cycle
< LVDS Data Format >
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LP140WH1
Liquid Crystal Display
Product Specification
3-4. 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 and specifications of LVDS Tx/Rx for its proper operation.
Table 4. TIMING TABLE
ITEM Symbol Min Typ Max Unit Note
DCLK Frequency fCLK - 72.3 - MHz
Period tHP 1470 1526 1586
Hsync Width tWH 23 32 40 tCLK
Width-Active tWHA 1366 1366 1366
Period tVP 779 790 801
Vsync
Width tWV 2 5 8 tHP
Width-Active tWVA 768 768 768
Horizontal back porch tHBP 72 80 124
tCLK
Data Horizontal front porch tHFP 8 48 48
Enable Vertical back porch tVBP 8 14 20
tHP
Vertical front porch tVFP 1 3 5
Condition : VCC =3.3V
3-5. Signal Timing Waveforms
High: 0.7VCC
Data Enable, Hsync, Vsync
Low: 0.3VCC
tCLK
DCLK 0.5 Vcc
tHP
Hsync t
WH
tHBP tWHA tHFP
Data Enable
tVP
tWV
Vsync tVFP
tVBP tWVA
Data Enable
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LP140WH1
Liquid Crystal Display
Product Specification
3-6. Color Input Data Reference
The brightness of each primary color (red,green and blue) is based on the 6-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.
Table 5. COLOR DATA REFERENCE
Input Color Data
RED GREEN BLUE
Color
MSB LSB MSB LSB MSB LSB
R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1 B0
Black 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Red 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0
Green 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0
Basic Blue 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1
Color Cyan 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1
Magenta 1 1 1 1 1 1 0 0 0 0 0 0 1 1 1 1 1 1
Yellow 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0
White 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
RED (00) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
RED (01) 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0
RED ... ... ... ...
RED (62) 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0
RED (63) 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0
GREEN (00) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
GREEN (01) 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0
GREEN ... ... ... ...
GREEN (62) 0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0
GREEN (63) 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0
BLUE (00) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
BLUE (01) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
BLUE ... ... ... ...
BLUE (62) 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0
BLUE (63) 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1
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LP140WH1
Liquid Crystal Display
Product Specification
3-7. Power Sequence
90% 90%
Power Supply For LCD
VCC
0V 10% 10%
T7 T8 T9
T1 T2
Interface Signal, Valid Data
Vi
(LVDS Signal of Transmitter) 0V
T3
T6
LED En
LED_En OFF OFF
PWM On
T4 T5
PWM OFF
VLED(LED Power supply) should be turn on before PWM on signal and turn off after PWM off signal.
PWM On signal should be fixed PWM duty or DC, not variable duty signal while PWM on.
Table 6. POWER SEQUENCE TABLE
Parameter Value Units
Min. Typ. Max.
T1 0.5 - 10 (ms)
T2 0 - 50 (ms)
T3 200 - - (ms)
T4 0 - T3 (ms)
T5 0 - T6 (ms)
T6 200 - - (ms)
T7 0 - 50 (ms)
T8 3 - 10 (ms)
T9 400 - - (ms)
Note)
1. Valid Data is Data to meet "3-3. LVDS Signal Timing Specifications"
2. Please avoid floating state of interface signal at invalid period.
3. When the interface signal is invalid, be sure to pull down the power supply for LCD VCC to 0V.
4. LED power must be turn on after power supply for LCD and interface signal are valid.
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LP140WH1
Liquid Crystal Display
Product Specification
4. Optical Specification
Optical characteristics are determined after the unit has been `ON' and stable for approximately 30 minutes in
a dark environment at 25qC. The values specified are at an approximate distance 50cm from the LCD surface
at a viewing angle of ) and 4 equal to 0q.
FIG. 1 presents additional information concerning the measurement equipment and method.
FIG. 1 Optical Characteristic Measurement Equipment and Method
LCD Module Pritchard 880 or
Optical Stage(x,y)
equivalent
50cm
Table 7. OPTICAL CHARACTERISTICS
Ta=25qC, VCC=3.3V, fV=60Hz, fCLK= 72.3MHz , ILED= 20 mA
Values
Parameter Symbol Units Notes
Min Typ Max
Contrast Ratio CR 500 - - 1
Surface Luminance, white LWH 190 220 - cd/m2 2
Luminance Variation G WHITE - 1.4 1.6 3
Response Time TrR+ TrD - 8 15 ms 4
Color Coordinates
RED RX 0.588 0.618 0.648
RY 0.325 0.355 0.385
GREEN GX 0.305 0.335 0.365
GY 0.554 0.584 0.614
BLUE BX 0.120 0.150 0.180
BY 0.079 0.109 0.139
WHITE WX 0.283 0.313 0.343
WY 0.299 0.329 0.359
Viewing Angle 5
x axis, right()=0q) 4r 40 - - degree
x axis, left ()=180q) 4l 40 - - degree
y axis, up ()=90q) 4u 10 - - degree
y axis, down ()=270q) 4d 30 - - degree
Gray Scale 6
Color Gamut C/G - 60 - %
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LP140WH1
Liquid Crystal Display
Product Specification
Note)
1. Contrast Ratio(CR) is defined mathematically as
Surface Luminance with all white pixels
Contrast Ratio =
Surface Luminance with all black pixels
2. Surface luminance is the average of 5 point across the LCD surface 50cm from the surface with
all pixels displaying white. For more information see FIG 1.
LWH = Average(L1,L2, ... L5)
3. The variation in surface luminance , The panel total variation (G WHITE) is determined by measuring LN
at each test position 1 through 13 and then defined as followed numerical formula.
For more information see FIG 2.
Maximum(L1,L2, ... L13)
G WHITE =
Minimum(L1,L2, ... L13)
4. Response time is the time required for the display to transition from white to black (rise time, TrR) and
from black to white(Decay Time, TrD). For additional information see FIG 3.
5. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are determined
for the horizontal or x axis and the vertical or y axis with respect to the z axis which is normal to the
LCD surface. For more information see FIG 4.
6. Gray scale specification * fV = 60Hz
Gray Level Luminance [%] (Typ)
L0 0.2
L7 1.5
L15 5.4
L23 12.2
L31 21.0
L39 34.8
L47 52.5
L55 74.2
L63 100
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LP140WH1
Liquid Crystal Display
Product Specification
FIG. 2 Luminance
H
A D
L6 L7 L8 H,V : ACTIVE AREA
C
A : H/4 mm
B : V/4 mm
L2 L3 C : 10 mm
D : 10 mm
B
POINTS : 13 POINTS
V
L9 L1 L10
Center Point
L4 L5
L11 L12 L13
FIG. 3 Response Time
The response time is defined as the following figure and shall be measured by switching the input signal
for "black" and "white".
TrR TrD
%
100
90
Optical
Response
10
0 white white
black
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LP140WH1
Liquid Crystal Display
Product Specification
FIG. 4 Viewing angle
Normal
Eye Y
I = 90 q , Up
I = 180 q ,
Left T
I
I = 0q ,
Right
I = 270 q ,
Down
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LP140WH1
Liquid Crystal Display
Product Specification
5. Mechanical Characteristics
The contents provide general mechanical characteristics for the model LP140WH1. In addition the figures
in the next page are detailed mechanical drawing of the LCD.
Horizontal 323.5 r 0.5mm
Outline Dimension Vertical 192.0 r 0.5mm
Thickness 5.2mm (max)
Horizontal (VESA Standard) From A/A to Edge of Case Top 1.5mm(min.)
Bezel Area
Vertical (VESA Standard) From A/A to Edge of Case Top 1.5mm(min.)
Horizontal 309.40 mm
Active Display Area
Vertical 173.95 mm
Weight 350g (Max.)
Surface Treatment Hard Coating(3H), Glare treatment of the front polarizer
Upper Glass (C/F Glass) 0.50 + 0.05 / -0.03 mm
Mother Glass Thickness
Lower Glass (TFT Glass) 0.50 + 0.05 / -0.03 mm
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LP140WH1
Liquid Crystal Display
Product Specification
Note) Unit:[mm], General tolerance: r 0.5mm
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LP140WH1
Liquid Crystal Display
Product Specification
Note) Unit:[mm], General tolerance: r 0.5mm
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LP140WH1
Liquid Crystal Display
Product Specification
Note) Unit:[mm], General tolerance: r 0.5mm
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LP140WH1
Liquid Crystal Display
Product Specification
[ DETAIL DESCRIPTION OF SIDE MOUNTING SCREW ]
* Mounting Screw Length (A)
= 2.0(Min) / 2.5(Max)
* Mounting Screw Hole Depth (B)
= 2.5(Min)
* Mounting hole location : 3.1(typ.)
* Torque : 2.0 kgf.cm(Max)
(Measurement gauge : torque meter)
Notes : 1. Screw plated through the method of non-electrolytic nickel plating is preferred
to reduce possibility that results in vertical and/or horizontal line defect due to
the conductive particles from screw surface.
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LP140WH1
Liquid Crystal Display
Product Specification
Backlight Exploded View. (Appendix)
15
8
12
7
11
9
10
13
6
5
4
3
14
2
1
No Part Name No Part Name
1 Diffuser Up Sheet 9 LED Housing
2 Prism Up Sheet 10 LED Array
3 Prism Down Sheet 11 Cover Bottom Fixing Double Tape
4 Diffuser Down Sheet 12 LGP Fixing Double Tape
5 Light Guide Panel 13 Panel Fixing Double Tape
6 Reflector 14 Sheet Fixing Pad (4pcs)
7 Supporter Main 15 Screw (2pcs)
8 Cover Bottom
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LP140WH1
Liquid Crystal Display
Product Specification
LGD Proposal for system cover design.(Appendix)
Gap check for securing the enough gap between LCM
1
and System cover.
Max Thickness
Sponge
LCM Reflector Side
System Cover
A Boundary Line
1.Rear side of LCM is sensitive against external stress,and previous check
about interference is highly needed.
Define 2.In case there is something from system cover comes into the boundary
above,mechanical interference may cause the FOS defects.
(Eg:Ripple,White spot..)
2 Check if antenna cable is sufficiently apart from T-CON of LCD Module.
Define
NO GOOD GOOD
1.If system antenna is overlapped with T-CON,it might be cause the noise.
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LP140WH1
Liquid Crystal Display
Product Specification
LGD Proposal for system cover design. (Appendix)
Gap check for securing the enough gap between LCM
3
and System hinge.
LCM Reflector Side
COF
(D-IC)
Hinge
Side Mount Screw Hole (4ea)
GAP:Min2.0mm ("I" TYPE) ("L" TYPE)
1.At least 2.0mm of gap needs to be secured to prevent the shock
Define related defects.
2."L" type of hinge is recommended than "I" type under shock test.
4 Checking the path of the System wire.
#3 #2
#1
Ok Bad Good
1.COF area needs to be handled with care.
2. GOOD ◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo