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TFT LCD Preliminary Specification
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MODEL NO.
HE315CH-B12
Unconfirmed
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REVISION HISTORY --------------------------------------------------------------------------------------- 3
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CONTENTS
1. GENERAL DESCRIPTION
1.1 OVERVIEW
1.2 FEATURES
1.3 APPLICATION
1.4 GENERAL SPECIFICATIONS
1.5 MECHANICAL SPECIFICATIONS
---------------------------------------------------------------------------- 4
2. ABSOLUTE MAXIMUM RATINGS ----------------------------------------------------------------- 5
2.1 ABSOLUTE RATINGS OF ENVIRONMENT
2.2 PACKAGE STORAGE
2.3 ELECTRICAL ABSOLUTE RATINGS
2.3.1 ELECTRICAL ABSOLUTE RATINGS (OPEN CELL)
2.3.2 BACKLIGHT UNIT
3. ELECTRICAL CHARACTERISTICS --------------------------------------------------------------- 7
3.1 TFT LCD MODULE
3.2 BACKLIGHT INVERTER UNIT
3.2.1 LED (LIGHT EMITTING DIODES) CHARACTERISTICS
3.2.2 HISENSE LED DRIVER CHARACTERISTICS
4. BLOCK DIAGRAM ---------------------------------------------------------------------------------------- 11
4.1 TFT LCD MODULE
5. PIN CONNECTION --------------------------------------------------------------------------------------- 12
5.1 TFT LCD MODULE
5.2 BACKLIGHT UNIT
5.3 COLOR DATA INPUT ASSIGNMENT
6. INTERFACE TIMING ------------------------------------------------------------------------------------ 15
6.1 INPUT SIGNAL TIMING SPECIFICATIONS
6.2 POWER ON/OFF SEQUENCE
7. OPTICAL CHARACTERISTICS --------------------------------------------------------------------- 17
7.1 TEST CONDITIONS
7.2 OPTICAL SPECIFICATIONS
8. PRECAUTIONS ------------------------------------------------------------------------------------------ 20
8.1 ASSEMBLY AND HANDLING PRECAUTIONS
8.2 SAFETY PRECAUTIONS
8.3 STORAGE PRECAUTIONS
9. MECHANICAL CHARACTERISTICS -------------------------------------------------------------- 21
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Version Date Page Section Description
Ver 1.0 Jan18.2011 All All Approval Specification was first issued.
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REVISION HISTORY
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1. GENERAL DESCRIPTION
1.1 OVERVIEW
HE315CH-B12 is a 32” TFT Liquid Crystal Display module with 90 LEDs Backlight unit and
1ch-LVDS interface. This module supports 1366 x 768 WXGA format and can display true
16.7M colors (8-bits/colors).
1.2 FEATURES
-HighBrightness (360) nits
- Ultra-high Contrast ratio 1000:1
- Fast response time (Gray to Gray Average 6.5ms)
- High Color saturation NTSC 60%
- Ultra Wide Viewing angle: 176(H)/176(V) (C520) with Super MVA Technology
-DE (Data Enable ) Only Mode
- LVDS (Low Voltage Differential Signaling) interface
- Color reproduction (Nature color)
- RoHS compliance
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1.3 APPLICATION
- TFT LCD TVs
- Multi-Media Display
1.4 GENERAL SPECIFICATI0NS
Item Specification Unit Note
Active Area
Bezel Opening Area
Driver Element a-si TFT active matrix -
Pixel Number 1366 x R.G.B. x 768 pixel
Pixel Pitch (Sub Pixel)
Pixel Arrangement RGB vertical stripe -
Display Colors 16.7M color
Display Operation Mode Transmissive mode / Normally black -
Surface Treatment
697.6845 (H) x 392.256 (V) (31.5” diagonal)
+9
(H)0.51075×(V)0.51075
Anti-Glare coating (Haze 17), Hard coating (2H)
mm
mm
mm
-
1.5 MECHANICAL SPECIFICATIONS
(1)
Item Min. Typ. Max. Unit Note
Module
Size
Weight
Note (1) Please refer to the attached drawings for more information of front and back outline
dimensions.
Horizontal(H) 751 751.4 752 mm (1)
Vertical(V) 442.5 443 443.5 mm (1)
Depth(D) 25.9 mm To Rear
Weight 5500 g
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2. ABSOLUTE MAXIMUM RATINGS
2.1 ABSOLUTE RATINGS OF ENVIRONMENT
Item Symbol
Storage Temperature
Operating Ambient Temperature
Shock (Non-Operating)
Vibration (Non-Operating)
Note (1) Temperature and relative humidity range is shown in the figure below.
(a) 90 %RH Max. (Ta 40 ºC).
(b) Wet-bulb temperature should be 39 ºCMax.(Ta>40ºC).
(c) No condensation.
Note (2) The maximum operating temperature is based on the test condition that the surface temperature
of display area is less than or equal to 65 ºC with LCD module alone in a temperature controlled
chamber. Thermal management should be considered in final product design to prevent the
surface temperature of display area from being over 65 ºC. The range of operating temperature
may degrade in case of improper thermal management in final product design.
Note (3) 11 ms, half sine wave, 1 time for ± X, ± Y, ± Z.
Note (4) 10 ~ 200 Hz, 10 min, 1 time each X, Y, Z.
Note (5) At testing Vibration and Shock, the fixture in holding the module has to be hard and rigid enough
so that the module would not be twisted or bent by the fixture.
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Value
Min. Max.
T
ST
T
OP
S
NOP
V
NOP
-20 +60 ºC(1)
0+50 ºC (1), (2)
- 50 G (3), (5)
- 1.0 G (4), (5)
Unit Note
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2.2 PACKAGE STORAGE
When storing modules as spares for a long time, the following precaution is necessary.
(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 35at normal humidity without
condensation.
(b) The module shall be stored in dark place. Do not store the TFT-LCD module in direct sunlight or
fluorescent light.
2.3 ELECTRICAL ABSOLUTE RATINGS
2.3.1 ELECTRICAL ABSOLUTE RATINGS (OPEN CELL)
Item Symbol
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MIN. Max.
Val ue
Unit Note
Power Supply Voltage V
Input Signal Voltage V
CC
IN
-0.3 13.0 V
-0.3 3.6 V
Note (1) Permanent damage to the device may occur if maximum values are exceeded. Function
operation should be restricted to the conditions described under Normal Operating
Conditions.
2.3.2 BACKLIGHT UNIT
Item Symbol
LED Voltage
LED Driver Input Voltage
V
W
V
BL
Power Supply Input Voltage Vin 100 240 Vac (2)
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.
Note (2) Power and Driver are two in one.
Value
Min. Max.
241
162
Unit Note
V
RMS
0 250 V (1)
(1)
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3. ELECTRICAL CHARACTERISTICS
3.1 TFT LCD MODULE
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Parameter Symbol
Power Supply Voltage VCC
Power Supply Ripple Voltage VRP
Rush Current
Power Supply Current
Differential Input High
White
Black - 0.33 - A
Vertical Stripe
IRUSH
I
CC
VLVTH
Min. Typ. Max.
11.4 12.0 12.6
Value
- - 100 mV
- - 3.4 A (2)
- 0.45 0.52 A
- 0.45 - A
- - +100 mV
Threshold Voltage
LV DS
Interface
CMOS
Interface
Differential Input Low
Threshold Voltage
Common Input Voltage
Terminating Resistor
Input High Threshold Voltage VIH
Input Low Threshold Voltage VIL
VLVTL
VLVC
RT
-100 - - mV
1.125 1.25 1.375 V
- 100 - ohm
2.7 - 3.3 V
0 - 0.7 V
Note (1) The module should be always operated within the above ranges.
Note (2) Measure Conditions:
Unit Note
V
(1)
(3)
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Note (3) The specified power supply current is under the conditions at VCC= 12V, Ta = 25 ± 2, fv=
60 Hz, whereas a power dissipation check pattern below is displayed.
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3.2 BACKLIGHT INVERTER UNIT
3.2.1 LED (LIGHT EMITTING DIODES) CHARACTERISTICS7D ±º
Parameter Symbol
LED Voltage
V
LED Current
LED Starting Voltage V
Operating Frequency
LED Life Time
L
Min. Typ. Max
W
I
L
s
F
O
BL
-3.2 3.5
- 120 150
--3.2
0 - 180 KHz (3)
100,000 - Hrs (4)
Value
Unit Note
V
RMS
mA
V
RMS
IL=120mA
RMS
(1)
(2), Ta = 25 ºC
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3.2.2 HISENSE LED DRIVER CHARACTERISTICS (Ta = 25 ± 2 ºC)
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Parameter Symbol
Power Consumption
Input Voltage
Min. Typ. Max
P
BL
V
ac
- 38 41 W
100 240
Unit Note
(5),(6),I
V
ac
Input Current Iac - - 2 A Non Dimming
Value
Input LED Driving
Voltage
Output The Other
Voltage
Oscillating Frequency
Dimming frequency
Minimum Duty Ratio
Vdc 210 Vrms
12V 11.4 12 12.6 V
F
W
F
B
D
MIN
180 KHz
200 500 Hz
0 100 %
For the
meanboard ,max
=120mA
L
3A
LED POWER
LCD MODULE
and DRIVER
Note (1) LED current is measured by utilizing high frequency current meters as shown below:
Note (2) The LED starting voltage V
should be applied to the lamp for more than 3.2v under
S
starting up duration. Otherwise the LED could not be lighted on completed.
Note (3) The LED frequency decides its application in backlight .If the backlight need to realize
controlling dynamically, high frequency LED need to be selected. Otherwise the backlight is
easy to flick, so enough high frequency LED must be selcted.
Note (4) The life time of a LED is defined as when the brightness is larger than 50% of its original
value and the effective discharge length is longer than 80% of its original length (Effective
discharge length is defined as an area that has equal to or more than 70% brightness
compared to the brightness at the center point of lamp.) as the time in which it continues to
operate under the condition at Ta = 25 2 and IL = 60mARMS.
Note (5) The power supply capacity should be higher than the total LED driver power consumption
PBL. Since the pulse width modulation (PWM) mode was applied for backlight dimming, the
driving current changed as PWM duty on and off. The transient response of power supply
should be considered for the changing loading when inverter dimming.
Note (6) To enhance the performance of backlight, the power consumption will increase to 1.5
times of the typical power consumption PBL in the power on stage and 20 seconds later it will
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return to typical value. Thus, the power source capacity for inverter should be considered to
supply the initial power consumption at power on duration.
4. BLOCK DIAGRAM
4.1 TFT LCD MODULE
Control
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PCBI
TFT LCD PANNEL
Board
PS-ON
SW
BRI
LV DS
POWER and
DRIVER
BACKLIGHT UNIT
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5 PIN CONNECTIONS
5.1 TFT LCD MODULE
CNF1 Connector Pin Assignment
Pin No. Symbol Description Note
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Note (1) Reserved for potential use. Left it open.
VCC Power supply: +12V
VCC Power supply: +12V
VCC Power supply: +12V
VCC Power supply: +12V
GND Ground
GND Ground
GND Ground
GND Ground
S_SCL NC (1)
S_SDA NC (1)
GND Ground
RX0- Negative transmission data of channel 0
RX0+ Positive transmission data of channel 0
GND Ground
RX1- Negative transmission data of channel 1
RX1+ Positive transmission data of channel 1
GND Ground
RX2- Negative transmission data of channel 2
RX2+ Positive transmission data of channel 2
GND Ground
RXCLK- Negative of clock
RXCLK+ Positive of clock
GND Ground
RX3- Negative transmission data of channel 3
RX3+ Positive transmission data of channel 3
GND Ground
PWM_I
PWM_O
GND Ground
GND Ground
Note (2) For Lightbar duty control signal.
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LED Input Duty Control
LED Output Duty Control
(2)
(2)
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5.2 BACKLIGHT UNIT
The pin configuration for the connecting component and wire is shown in the table below.
5.2.1 Light Bar
Pin No. Symbol Description
1PPositive
2 N Negative
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1
2
5.2.2 HISENSE LED DRIVER BOARD
XP901
Pin No. Symbol Description
1 LED- Positive
2 LED+ Negative
3 LED- Positive
4 LED+ Negative
XP804
Pin No. Symbol Description
1GNDGND
2GNDGND
3DIM
4SW
5 12V
6 12V
XP801
Pin No. Symbol Description
1 L(N)
2 N(L)
XP804
XP901
XP801
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5.3 COLOR DATA INPUT ASSIGNMENT
The brightness of each primary color (red, green and blue) is based on the 8-bit gray scale data input for the
color. The higher the binary input, the brighter the color. The table below provides the assignment of color
versus data input.
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Data Signal
Color
Basic
Colors
Gray
Scale
Of
Red
Gray
Scale
Of
Green
Gray
Scale
Of
Blue
Red Green Blue
R7R6R5R4R3R2R1R0G7G6G5G4G3G2G1G0B7B6B5B4B3B2B1B
0
0
0
0
0
0
Black
Red
Green
Blue
Cyan
Magenta
Yellow
White
Red(0)/ Dark
Red(1)
Red(2)
:
:
Red(253)
Red(254)
Red(255)
Green(0)/Dark
Green(1)
Green(2)
:
:
Green(253)
Green(254)
Green(255)
Blue(0)/Dark
Blue(1)
Blue(2)
:
:
Blue(253)
Blue(254)
Blue(255)
0
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
:
:
:
:
:
:
:
:
:
:
:
:
:
:
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
:
:
:
:
:
:
:
:
:
:
:
:
:
:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
:
:
:
:
:
:
:
:
:
:
:
:
:
:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Note (1) 0: Low Level Voltage, 1: High Level Voltage
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
1
1
1
1
1
1
1
0
1
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
1
0
1
1
1
1
1
1
0
0
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
1
1
0
0
0
0
0
0
:
:
:
:
0
0
0
0
0
0
0
0
0
0
0
0
:
:
:
:
0
0
0
0
0
0
0
0
0
0
0
0
:
:
:
:
1
1
1
1
1
1
0
1
1
1
1
1
1
0
0
1
1
0
0
0
0
0
0
:
:
:
:
0
0
0
0
0
0
0
0
0
0
0
0
:
:
:
:
0
0
0
0
0
0
0
0
0
0
0
0
:
:
:
:
1
1
1
1
1
1
0
0
0
1
1
1
1
1
1
0
0
1
1
0
0
0
0
0
0
:
:
:
:
0
0
0
0
0
0
0
0
0
0
0
0
:
:
:
:
0
0
0
0
0
0
0
0
0
0
0
0
:
:
:
:
1
1
1
1
1
1
0
0
0
0
0
1
1
1
1
1
1
0
0
1
1
0
0
0
0
0
0
:
:
:
:
0
0
0
0
0
0
0
0
0
0
0
0
:
:
:
:
0
0
0
0
0
0
0
0
1
0
0
1
:
:
:
:
1
0
0
1
1
1
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6. INTERFACE TIMING
6.1 INPUT SIGNAL TIMING SPECIFICATIONS
The input signal timing specifications are shown as the following table and timing diagram.
Signal Item Symbol Min. Typ. Max. Unit Note
LVDS Receiver
Clock
LVDS Receiver
Data
Vertical Active
Display Term
Horizontal Active
Display Term
Note (1) Since this module is operated in DE only mode, Hsync and Vsync input signals should be set
to low logic level. Otherwise, this module would operate abnormally.
Note (2) Please refer to 5.1 for detail information.
Frequency 1/Tc 60 76 82 MHZ -
Input cycle to cycle
Setup Time Tlvsu 600 - - ps -
Frame Rate
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jitter
Hold Time Tlvhd 600 - - ps -
Total Tv 778 806 888 Th Tv=Tvd+Tvb
Display Tvd 768 768 768 Th -
Blank Tvb 10 38 120 Th -
Total Th 1442 1560 1936 Tc Th=Thd+Thb
Display Thd 1366 1366 1366 Tc -
Blank Thb 76 194 570 Tc -
Trcl - - 200 ps -
Fr5 47 50 53 Hz
(2)
Fr6 57 60 63 Hz
INPUT SIGNAL TIMING DIAGRAM
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LVDS RECEIVER INTERFACE TIMING DIAGRAM
6.2 POWER ON/OFF SEQUENCE
MIN 300ms
___
>
>
___
PWM
SW
---------------------------
MAX 3A
MAX 2A
___
12V
7. OPTICAL CHARACTERISTICS
7.1 TEST CONDITIONS
Item Symbol Value Unit
-------------------------------------
>
___
>
--------- -
--------- -
200Hz ≤ f ≤ 500Hz
--------- -
----------
pwm
3V ≤ Vh ≤ 5V
PWM
0V ≤ Vl ≤ 0.3V
PWM
3V ≤ Vh ≤ 5V
SW
0V ≤ Vl ≤ 0.3V
SW
Ambient Temperature Ta 25±2
Ambient Humidity Ha 50±10 %RH
Supply Voltage
Input Signal
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V
CC
According to typical value in "3. ELECTRICAL CHARACTERISTICS"
5.0 V
o
C
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Lamp Current
Oscillating Frequency (Inverter)
Frame rate Fr 60 Hz
7.2 OPTICAL SPECIFICATIONS
The relative measurement methods of optical characteristics are shown in 7.2. The
following items should be measured under the test conditions described in 7.1 and stable
environment shown in Note (6).
Item Symbol Condition Min Typ Max Unit Note
Contrast Ratio CR
Response Time
Center Luminance of White L
White Variation W - - 1.3 - (7)
Cross Talk CT - - 4 % (5)
Red
Green
Color
Chromaticity
Viewing
Angle
Blue
White
Color
Gamut
Horizontal
Vertical
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I
L
F
W
Gray to
gray
average
C
Rx
Ry 0.338 -
Gx 0.332 -
Gy 0.593 -
Bx 0.152 -
θ
Viewing
Angle at
Normal
Direction
By 0.078 -
Wx 0.295
Wy 0.308
CG 82 91 % NTSC
+
x-
+
Y
CR≥20
Y-
8.0 ± 0.5 mA
63±3KHz
(2000) (3000) - (2)
- 6.5 ms (3)
300 360 - Cd/m
=0°,
x
=0°
Y
Typ.
-0.03
80 88
80 88
80 88
80 88
0.597
2
-
Typ.
+0.03
-
Deg. (1)
(4)
(6)
Note (1) Definition of Viewing Angle (θx, θy):
Viewing angles are measured by EZ-Contrast 160R (Eldim)
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Note (2) Definition of Contrast Ratio (CR):
The contrast ratio can be calculated by the following expression.
Contrast Ratio (CR) = L255 / L0
L255: Luminance of gray level 255
L 0: Luminance of gray level 0
CR = CR (5), where CR (X) is corresponding to the Contrast Ratio of the point X at the
figure in Note (7).
Note (3) Definition of Gray to Gray Switching Time:
The driving signal means the signal of luminance 0%, 20%, 40%, 60%, 80%, 100%.Gray to gray
average time means the average switching time of luminance 0%,20%, 40%, 60%, 80%, 100% to
each other.
Note (4) Definition of Luminance of White (L
):
, L
C
AVE
Measure the luminance of gray level 255 at center point and 5 points
= L (5)
L
C
= [L (1)+ L (2)+ L (3)+ L (4)+ L (5)] / 5
L
AVE
where L (X) is corresponding to the luminance of the point X at the figure in Note (7).
Note (5) Definition of Cross Talk (CT):
CT = | Y
– YA|/ YA× 100 (%)
B
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Where:
Y
= Luminance of measured location without gray level 0 pattern (cd/m2)
A
Y
= Luminance of measured location with gray level 0 pattern (cd/m2)
B
Note (6) Measurement Setup:
The LCD module should be stabilized at given temperature for 1 hour to avoid abrupt
temperature change during measuring. In order to stabilize the luminance, the
measurement should be executed after lighting Backlight for 1 hour in a windless room.
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Note (7) Definition of White Variation (δW):
Measure the luminance of gray level 255 at 5 points
δW = Maximum [L (1), L (2), L (3), L (4), L (5)] / Minimum [L (1), L (2), L (3), L (4), L (5)]
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8. PRECAUTIONS
8.1 ASSEMBLY AND HANDLING PRECAUTIONS
(1) Do not apply rough force such as bending or twisting to the module during assembly.
(2) It is recommended to assemble or to install a module into the user’s system in clean working
areas. The dust and oil may cause electrical short or worsen the polarizer.
(3) Do not apply pressure or impulse to the module to prevent the damage of LCD panel and
backlight.
(4) Always follow the correct power-on sequence when the LCD module is turned on. This can
prevent the damage and latch-up of the CMOS LSI chips.
(5) Do not plug in or pull out the I/F connector while the module is in operation.
(6) Do not disassemble the module.
(7) Use a soft dry cloth without chemicals for cleaning, because the surface of polarizer is very
soft and easily scratched.
(8) Moisture can easily penetrate into LCD module and may cause the damage during
operation.
(9) High temperature or humidity may deteriorate the performance of LCD module. Please store
LCD modules in the specified storage conditions.
(10) When ambient temperature is lower than 10ºC, the display quality might be reduced. For
example, the response time will become slow, and the starting voltage of CCFL will be
higher than that of room temperature.
8.2 SAFETY PRECAUTIONS
(1) The startup voltage of a backlight is over 1000 Volts. It may cause an electrical shock while
assembling with the inverter. Do not disassemble the module or insert anything into the
backlight unit.
(2) 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, skin or clothes, it has to be washed away thoroughly
with soap.
(3) After the module’s end of life, it is not harmful in case of normal operation and storage.
8.3 STORAGE PRECAUTIONS
When storing modules as spares for a long time, the following precaution is necessary.
(1) 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 35at norm al humidity
without condensation.
(2) The module shall be stored in dark place. Do not store the TFT-LCD module in direct sunlight or
fluorescent light.
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9. MECHANICAL CHARACTERISTIC
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