The LP140WD1 is a Color Active Matrix Liquid Crys tal Display with an integra l LED backlight system. The
matrix employs a-Si Thin Film Tran s istor as the active element. It is a trans missi ve type d isplay operating in
the normally white mode. This TFT-LCD has 14.0 inches diagonally measured active display area with HD
resolution(900 vertical by 1600 horizontal pixel a rray). Each pixel is divided into Red, Green and Blue subpixels or dots which are arranged in vertical stripes. Gray scale or the brightness o f 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 LP140WD1 has been designed to apply the in terface method that enables low power, high speed, low
EMI.
The LP140WD1 is intended to support applications where thin th ickness, low power are critical factor s and
graphic displays are important. In combination with the vertical arrangement of the sub-pixels, the
LP140WD1 characteristics provide an exce llen t fla t display for office automation products such as Notebook
PC.
Block
CN2
CN2
9Pin
9Pin
FPC
FPC
1
GIP(Gate In Panel)
WLED Ass’y(48ea)
TFT-LCD Panel
(1600 X 900)
900
1
Source Driver Circuit
Source DriverCircuit
PowerEDID signal & Power
LED
CN 1 User connector 40 Pin
LED
Driver
Driver
EDID
EDID
BLOCK
BLOCK
POWER
POWER
BLOCK
BLOCK
EEPROM
EEPROM
BLOCK
BLOCK
LVDS & Timing
LVDS& Timing
Control
Control
Block
Control & Data
General Features
Active Screen Size14.0 inches diagonal
Outline Dimension323.5(H, typ) × 192.0(V, typ) × 5.2(D,max) [mm]
Pixel Pitch0.1935mm × 0.1935 mm
Pixel Format1600 horiz. By 900 vert. Pixels RGB strip arrangement
Color Depth6-bit, 262,144 colors
The LP140WD1 requires two power inputs. The first logic is employed to power the LCD electronics and to
drive the TFT array and liquid crystal. The second backlight is the input about LED BL with LED Driver.
Table 2. ELECTRICAL CHARACTERISTICS
ParameterSymbol
UnitNotes
MinTypMax
LOGIC :
Values
Power Supply Input VoltageV
Power Supply Input CurrentMosaicI
Power ConsumptionP
Power Supply Inrush CurrentI
LVDS ImpedanceZ
CC3.03.33.6V1
CC
CC-1.451.68W2
CC_P--2000mA3
LVDS90100110
370440510
mA2
Ω
BACKLIGHT : ( with LED Driver)
LED Power Input VoltageV
LED Power Input CurrentI
LED Power ConsumptionP
LED Power Inrush CurrentI
LED7.012.020.0V5
LED-297315mA6
LED-3.563.78W6
LED_P--2000mA7
PWM Duty Ratio6-100%8
PWM Jitter
PWM ImpedanceZ
-
PWM204060kΩ
0-0.3%9
4
PWM FrequencyF
PWM High Level VoltageV
PWM Low Level VoltageV
LED_EN ImpedanceZ
LED_EN High Voltage
LED_EN Low Voltage
PWM200-1000Hz10
PWM_H
PWM_L
PWM204060kΩ
LED_EN
V
_H
V
LED_EN
_L
3.0-5.3V
0-0.5V
3.0-5.3V
0-0.5V
Life Time12,000--Hrs11
Ver. 1.0Dec. 15. 2009
6/ 31
Liquid Crystal Display
Product Specification
Note)
1. The measuring position is the connector of LCM and the test conditions are under 25℃, fv = 60Hz,
Black pattern.
2. The specified Icc 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.
3. The below figures are the measuring Vcc condition and the Vcc control block LGD used.
The Vcc condition is same the minimum of T1 at Power on sequence.
LP140WD1
Rising time
Vcc
0V
10%
90%
3.3V
0.5ms
4. This impedance value is needed to proper display and measured form LVDS Tx to the mating connector.
5. The measuring position is the connector of LCM and the test conditions are under 25℃.
6. The current and power consumption with LED Driver are under the Vled = 12.0V , 25℃, Dimming of
Max luminance whereas White pattern is displayed and fv is the frame frequency.
7. The below figures are the measuring Vled condition
and the Vled control block LGD used.
VLED control block is sa me with V cc c o ntr ol bl oc k.
Rising time
V
LED
0V
10%
90%
12.0V
0.5ms
8. The operation of LED Driver below minimum dimming ratio may cause flickering or reliability issue.
9. If Jitter of PWM is bigger than maximum. It may cause flickering.
10. This Spec. is not effective at 100% dimming ratio as an exception because it has DC level equivalent
to 0Hz. In spite of acceptable range as defined, the PWM Frequency should be fixed and stable for
more consistent brightness control at any specific level desired.
11. The life time is determined as the time at which the typical brightness of LCD is 50% compare to that of
initial value at the typical LED current. These LED backlight has 6 strings on it and the typical current
of LED’s string is base on 20mA.
Ver. 1.0Dec. 15. 2009
7/ 31
LP140WD1
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)
PinSymbolDescriptionNotes
1NCNo Connection (Reserved for supplier)
2VCCPower Supply, 3.3V Typ.
3VCCPower Supply, 3.3V Typ.
4V EEDIDDDC 3.3V power
5NCNo Connection
6Clk EEDIDDDC Clock
7DATA EEDIDDDC Data
8Odd_R
9Odd_R