FOR MESSRS : DATE : Aug.30th, 2016
CUSTOMER’S ACCEPTANCE SPECIFICATIONS
TX18D44VM2BPA
Contents
No. ITEM SHEET No. PAGE
1 COVER 7B64PS 2701-TX18D44VM2BPA-4 1-1/1
2 RECORD OF REVISION 7B64PS 2702-TX18D44VM2BPA-4 2-1/2~2/2
3 GENERAL DATA 7B64PS 2703-TX18D44VM2BPA-4 3-1/1
4 ABSOLUTE MAXIMUM RATINGS 7B64PS 2704-TX18D44VM2BPA-4 4-1/1
5 ELECTRICAL CHARACTERISTICS 7B64PS 2705-TX18D44VM2BPA-4 5-1/1
6 OPTICAL CHARACTERISTICS 7B64PS 2706-TX18D44VM2BPA-4 6-1/2~2/2
7 BLOCK DIAGRAM 7B64PS 2707-TX18D44VM2BPA-4 7-1/1
8 RELIABILITY TESTS 7B64PS 2708-TX18D44VM2BPA-4 8-1/1
9 LCD INTERFACE 7B64PS 2709-TX18D44VM2BPA-4 9-1/7~7/7
10 OUTLINE DIMENSIONS 7B64PS 2710-TX18D44VM2BPA-4 10-1/2~2/2
11 TOUCH PANEL 7B64PS 2711-TX18D44VM2BPA-4 11-1/2~2/2
12 APPEARANCE STANDARD 7B64PS 2712-TX18D44VM2BPA-4 12-1/4~4/4
13 PRECAUTIONS 7B64PS 2713-TX18D44VM2BPA-4 13-1/2~2/2
14 DESIGNATION OF LOT MARK 7B64PS 2714-TX18D44VM2BPA-4 14-1/1
ACCEPTED BY: PROPOSED BY:
KAOHSIUNG OPTO-ELECTRONICS IN C. SHEET
NO. 7B64PS 2701-TX18D44VM2BPA-4 PAGE 1-1/1
2. RECORD OF REVISION
DATE SHEET No. SUMMARY
May 04,’12 All pages Company name changed:
KAOHSIUNG HITACHI ELECTRONICS CO.,LTD.
KAOHSIUNG OPTO-ELECTR ONICS INC.
7B64PS-2704-
TX18D44VM2BPA-2
Page 4-1/1
4. ABSOLUTE MAXIMUM RATINGS
Revised : Note 2.
7B64PS-2706-
TX18D44VM2BPA-2
Page 6-1/2
6. OPTICAL CHARACTERISTICS
Revised :
Item Typ.
Viewing Angle
65
65
70
70
Item Typ.
Viewing Angle
70
70
65
65
7B64PS-2711-
TX18D44VM2BPA-2
Page 11-2/2
11.5 SAFETY AND ATTENTIONS
Added : Item 6)
Apr. 16,’14 7B64PS-2711-
TX18D44VM2BPA-3
Page 11-1/2
11.2 ELECTRICAL CHARACTERISTICS
Revised : Item Specification
Resistance
Between Terminal X1-X2 310~1070Ω
Y1-Y2 160~660Ω
Item Specification
Resistance
Between Terminal X1-X2 400~1200Ω
Y1-Y2 190~660Ω
7B64PS-2711-
TX18D44VM2BPA-3
Page 11-2/2
11.4 OPTICAL CHARACTERISTICS
Revised : Item Specification
Transmittance 80% min.
Item Specification
Transmittance 77% min.
7B64PS-2713-
TX18D44VM2BPA-3
Page 13-1/2
13. PRECAUTIONS
Added : 13.1 PRECAUTIONS of MOUNTING
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2702-TX18D44VM2BPA-4 PAGE 2-1/2
DATE SHEET No. SUMMARY
Aug.30,’16 7B64PS-2711-
TX18D44VM2BPA-4
Page 11-1/2
11.2 ELECTRICAL CHARACTERISTICS
Revised : X1-X2 : 400~1200Ω → 300~1400Ω
Y1-Y2 : 190~660Ω → 100~900Ω
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2702-TX18D44VM2BPA-4 PAGE 2-2/2
3. GENERAL DATA
3.1 DISPLAY FEATURES
This module is a 7” WVGA of 16:9 format amorphous silicon TFT.The pixel format is vertical stripe and
sub pixels are arranged as R(red), G(green), B(blue) sequentially. This display is RoHS compliant, and
COG (chip on glass) technology and LED backlight are applied on this display.
Part Name TX18D44VM2BPA
Module Dimensions 165.0(W) mm x 106.0(H) mm x 9.6(D) mm
LCD Active Area 152.4(W) mm x 91.44(H) mm
Pixel Pitch 0.1905(W) mm x 0.1905(H) mm
Resolution 800 x 3(RGB)(W) x 480(H) dots
Color Pixel Arrangement R, G, B Vertical stripe
LCD Type Transmissive Color TFT; Normally White
Display Type Active Matrix
Number of Colors 262k Colors (6-bit RGB)
Backlight Light Emitting Diode (LED)
Weight 168g
Interface 40 pin C-MOS
Power Supply Voltage 3.3V for LCD; 12V for Backlight
Power Consumption 0.76W for LCD ; 1.3W for Backlight
Viewing Direction 12 O’clock (without image inversion an d least brightness change)
6 O’clock (contrast peak located at)
Touch Panel Resistive type; Film on Glass; 4-wire type; Anti-glare surface
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2703-TX18D44VM2BPA-4 PAGE 3-1/1
4. ABSOLUTE MAXIMUM RATINGS
Item Symbol Min. Max. Unit Remarks
Supply Voltage VDD 0 7.0 V -
Input Voltage of Logic VI -0.3 VDD+0.3 V Note 1
Operating Temperature TOP -20 70 C
Note 2
Storage Temperature TST -30 80 C
Note 2
Note 1: The rating is defined for the signal voltages of the interface such as DE, Hsync, Vsync, CLK
and RGB data bus.
Note 2: The maximum rating is defined as above based on the chamber temperature, which might be
different from ambient temperature after assembling the panel into the application. Moreover,
some temperature-related phenomenon as below needed to be noticed:
- Background color, contrast and response time would be different in temperatures other than
25 C
.
- Operating under high temperature will shorten LED lifetime.
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2704-TX18D44VM2BPA-4 PAGE 4-1/1
5. ELECTRICAL CHARACTERISTICS
5.1 LCD CHARACTERISTICS
Item Symbol Condition Min. Typ. Max. Unit Remarks
Power Supply Voltage VDD - 3.0 3.3 3.6 V -
Input Voltage of Logic VI “H” level 0.8VDD - VDD V Note 1
“L” level VSS - 0.2VDD
Power Supply Current IDD - - 230 - mA Note 2,3
Frame Frequency Frame
f - - 60 65 Hz -
CLK Frequency CLK
f - 29 32.32 36.15 MHz -
Note 1: The rating is defined for the signal voltages of the interface such as DE, Hsync, Vsync, CLK
and RGB data bus.
Note 2: An all black check pattern is used when measuring IDD, Frame
fis set to 60 Hz.
Note 3: 1.0A fuse is applied in the module for IDD. For display activation and protection purpose, power
supply is recommended larger than 2.5A to start the display and break fuse once any short
circuit occurred.
5.2 BACKLIGHT CHARACTERISTICS
Item Symbol Condition Min. Typ. Max. Unit Remarks
LED Input Voltage VLED Backlight Unit 11.5 12.0 12.5 V Note 1
LED Forward Current ILED Backlight Unit - 108 - mA
LED Lifetime - ILED=108 mA - 40K - hrs Note 2
Note 1: Fig. 5.1 shows the LED backlight circuit. The circuit has 27 LEDs in total and R is 243.
Note 2: The estimated lifetime is specified as t he time to reduce 50% brightness by applying 108 mA at
25 C
.
Fig. 5.1
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2705-TX18D44VM2BPA-4 PAGE 5-1/1
VC, V T SS
a025
CTa
25
6. OPTICAL CHARACTERISTICS
The optical characteristics are measured based on the conditions as below:
- Supplying the signals and voltages defined in the section of electrical characteristics.
- The backlight unit needs to be turned on for 30 minutes.
- The ambient temperature is 25 C
.
- In the dark room less than 100 lx, the equipment has been set for the measurements as shown in Fig
6.1.
Item Symbol Condition Min. Typ. Max. Unit Remarks
Brightness of White - 0 ,0
,
ILED= 108mA
240 320 - 2
cd/m Note 1
Brightness Uniformity - 70 - - % Note 2
Contrast Ratio CR 300 600 - - Note 3
Response Time Tr + Tf 0 ,0
- 20 - ms Note 4
NTSC Ratio - 0 ,0
- 45 - % -
Viewing Angle
x
10 CR ,0
- 65 -
Degree Note 5
x
10 CR ,180
- 65 -
y
10 CR ,90
- 70 -
y
10 CR ,270
- 70 -
Color
Chromaticity
Red X
0 ,0
0.50 0.55 0.60
- Note 6
Y 0.29 0.34 0.39
Green X 0.29 0.34 0.39
Y 0.52 0.57 0.62
Blue X 0.10 0.15 0.20
Y 0.06 0.11 0.16
White X 0.23 0.28 0.33
Y 0.25 0.30 0.35
Note 1: The brightness is measured from the center point of the panel, P5 in Fig. 6.2, for the typical
value.
Note 2: The brightness uniformity is calculated by the equation as below:
Which is based on the brightness values of the 9 points measured by BM-5 as shown in Fig.
6.2.
X
6
2
X
X
6
1
Y
6
1
Y
6
2
Y
6
2
Y
6
1
Y
X
6
2X
6
1
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2706-TX18D44VM2BPA-4 PAGE 6-1/2
V. Hz, V C, f T DD
Framea 336025
Brightness uniformity = X100%
Min. Brightness
Max. Brightness
Fig. 6.2
LCD panel
Photo detector:BM-5
Field 1∘ Distance：500 mm
Fig. 6.1
Note 3: The Contrast ratio is measured from the center point of the panel, P5, and defined as the
following equation:
Note 4: The definition of response time is shown in Fig. 6.3. The rising time is the period from 90%
brightness to 10% brightness when the data is from white to black. Oppositely, Falling time is
the period from 10% brightness rising to 90% brightness.
Fig. 6.3
Note 5: The definition of viewing angle is shown in Fig. 6.4. Angle
is used to represent viewing
directions, for instance,
270
means 6 o’clock, and
0
means 3 o’clock. Moreover, angle
is used to represent viewing angles from axis Z toward plane XY.
The viewing direction of this display is 12 o’clock, which means that a photograph with gray
scale would not be reversed in color and the brightness change would be less from this
direction. However, the best contrast peak would be located at 6 o’clock.
,0)y (x,
0
90
180
270
Fig. 6.4
Note 6: The color chromaticity is measured from the center p oint of th e p anel, P5, a s shown in Fig. 6.2.
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2706-TX18D44VM2BPA-4 PAGE 6-2/2
CR =
Brightness of White
Brightness of Black
7. BLOCK DIAGRAM
Gate Driver
CN1 CN2
Note 1 : Signals are DE, Hsync, Vsync, CLK and RGB data bus.
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2707-TX18D44VM2BPA-4 PAGE 7-1/1
8. RELIABILITY TESTS
Test Item Condition
High Temperature 1) Operating
2) 70 C
240 hrs
Low Temperature 1) Operating
2) -20 C
240 hrs
High Temperature 3) 1) Storage
4) 2) 80 C
240 hrs
Low Temperature 5) 1) Storage
6) 2) -30 C
240 hrs
Heat Cycle 1) Operating
2) –20 C
~70 C
3) 3hrs~1hr~3hrs 240 hrs
Thermal Shock 1) Non-Operating
2) -35 C
85 C
3) 0.5 hr0.5 hr 240 hrs
High Temperature &
Humidity
1) Operating
2) 40 C
& 85%RH
3) Without condensation
240 hrs
(Note 3)
Vibration
1) Non-Operating
2) 20～200 Hz
3) 2G
4) X, Y, and Z directions
1 hr for each direction
Mechanical Shock
1) Non-Operating
2) 10 ms
3) 50G
4) Y X, and Z
directions
Once for each direction
ESD
1) Operating
2) Tip: 150 pF, 330
3) Air discharge for glass:
8KV
4) Contact discharge for metal frame:
8KV
1) Glass: 9 points
2) Metal frame: 8 points
(Note 4)
Note 1: Display functionalities are inspected under the conditions defined in the specification after the
reliability tests.
Note 2: The display is not guaranteed for use in corrosive gas environments.
Note 3: Under the condition of high temperature & humidity, if the temperature is higher than 40 C
, the
humidity needs to be reduced as Fig. 8.1 shown.
Note 4: All pins of LCD interface (CN1) have been tested by
100V contact discharge of ESD under
non-operating condition.
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2708-TX18D44VM2BPA-4 PAGE 8-1/1
Temperature Ta C)(
0
10
20
30
40
50
60
70
80
90
20 25 30 35 40 45 50 55 60 65 70 75
Relative Humidity RH (%)
Fig. 8.1
9. LCD INTERFACE
9.1 INTERFACE PIN CONNECTIONS
The display interface connector is FA5B040HP1R3000 made by JAE (Thickness: 0.30.05mm; Pitch:
0.50.05mm) and more details of the connector are shown in the section of outline dimension.
Pin assignment of LCD interface is as below:
Pin No. Signal Function Pin No. Signal Function
1 VDD
Power Supply for Logic
21 G4 Green Data
2 VDD 22 G3 Green Data
3 VDD 23 VSS GND
4 VDD 24 G2 Green Data
5 UD Vertical Display mode Cont rol 25 G1 Green Data
6 DE Data Enable Signal 26 G0 Green Data (LSB)
7 VSS GND 27 VSS GND
8 Hsync Horizontal synchronous signal 28 R5 Red Data (MSB)
9 VSS GND 29 R4 Red Data
10 Vsync Vertical synchronous signal 30 R3 Red Data
11 VSS GND 31 VSS GND
12 B5 Blue Data (MSB) 32 R2 Red Data
13 B4 Blue Data 33 R1 Red Data
14 B3 Blue Data 34 R0 Red Data (LSB)
15 VSS GND 35 LR Horizontal Display mode Control
16 B2 Blue Data 36 VSS GND
17 B1 Blue Data 37
18 B0 Blue Data (LSB) 38 CLK Dot Clock
19 VSS GND 39 VSS GND
20 G5 Green Data (MSB) 40
Note 1: Please refer to 9.5 SCAN DIRECTION for the setting methods of UD, LR function.
Note 2: Synchronous or DE mode would be automatically selected when signal input.
(Unused pins to be grounded.)
The backlight interface connector is BHR-03VS-1 made by JAE, and pin assignment of backlight is as
below:
Pin No. Signal Level Function
1 VLED+ - Power Supply for LED
2 NC - No connection
3 VLED- - GND
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2709-TX18D44VM2BPA-4 PAGE 9-1/7
9.2 TIMING CHART
A. SYNCHRONOUS MODE
Fig. 9.1 Horizontal Timing of Synchronous Mod e
Note 1: CLK’s falling edge is the time to latch data and count (thp + thb), therefore, data sending and
Hsync’s falling edge should start when CLK’s rise edge.
123 35 515 12520
tvp+tvb = 35H (fixed) tvd = 480H (fixed) tvf = 5H (typ.)
tvp
tvb
tv = 520H (60 Hz)
Vsync
Hsync
Display lines
36
Invalid lines Invalid lines
Fig. 9.2 Vertical Timing of Synchronous Mode
Note 2: Vsync’s falling edge needs to start with Hsync’s falling edge simultaneously to count (tvp + tvb).
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NO. 7B64PS 2709-TX18D44VM2BPA-4 PAGE 9-2/7
B. DE MODE
DE
th = 1036 CLK (1H)
1 2 3 216
RRR RR R RR R
216 CLK (typ.) thd = 800 CLK (fixed) 20CLK (typ.)
1016 1036
Display data
12
CLK
GGGGG GGGG
BBB BB B BB B
217
R [0:5]
G [0:5]
B [0:5]
Invalid data Invalid data
32.32M Hz (typ.)
Fig. 9.3 Horizontal Timing
Fig. 9.4 Vertical Timing
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2709-TX18D44VM2BPA-4 PAGE 9-3/7
C. CLOCK AND DATA INPUT TIMING
CLK
80%
20%
Tdsu Tdhd
Tcph
1st RGB 2nd RGB
1st 2nd 80%
20%
Tcwh
Tcwl
Last Data
20%
80%
80%
Tesu Tehd
800 RGB
Data
DE
Fig. 9.5 Setup & Hold Time of Data and DE signal.
Fig. 9.6 Setup & Hold Time of Hsync and Vsync signal
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2709-TX18D44VM2BPA-4 PAGE 9-4/7
9.3 TIMING TABLE
The column of timing sets including minimum, typical, and maximum as below are based on the best
optical performance, frame frequency (Vsync) = 55~65Hz to define.
A. SYNCHRONOUS MODE
Item Symbol Min. Typ. Max. Unit
Hsync
CLK Frequency fclk 29.0 32.32 36.15 M Hz
Display Data thd 800 800 800
CLK
Cycle Time th 1020 1036 1057
Pulse Width thp 1 128 -
Pulse Width and Back Porch thp + thb 216 216 216
Front Porch thf 4 20 41
Vsync
Display Line tvd 480 480 480
H
Cycle Time tv 517 520 526
Pulse Width tvp 1 2 -
Pulse Width and Back Porch tvp + tvb 35 35 35
Front Porch tvf 2 5 11
B. DE MODE
Item Symbol Min. Typ. Max. Unit
Horizontal CLK Frequency fclk 29.0 32.32 36.15 M Hz
Display Data thd 800 800 800 CLK
Cycle Time th 1020 1036 1057
Vertical Display Data tvd 480 480 480 H
Cycle Time tv 517 520 526
C. CLOCK AND DATA INPUT TIMING
Item Symbol Min. Typ. Max. Unit
CLK Duty Tcwh 40 50 60 %
Cycle Time Tcph - 30.94 -
ns
Vsync Setup Time Tvsu 6 - -
Hold Time Tvhd 6 - -
Hsync Setup Time Thsu 6 - -
Hold Time Thhd 6 - -
Data Setup Time Tdsu 6 - -
Hold Time Tdhd 6 - -
DE Setup Time Tesu 6 - -
Hold Time Tehd 6 - -
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NO. 7B64PS 2709-TX18D44VM2BPA-4 PAGE 9-5/7
9.4 POWER SEQUENCE
Note 1: In order to avoid any damages, VDD has to be applied before all other signals. The opposite is
true for power off where VDD has to be remained on until all other signals have been switch off.
The recommended time period is 1 second.
Note 2: In order to avoid showing uncompleted patterns in transient state. It is recommended that
switching the backlight on is delayed for 1 second after the signals have been applied. The
opposite is true for power off where the backlight has to be switched off 1 second before the
signals are removed.
9.5 SCAN DIRECTION
Scan direction is available to be switched as below by setting CN1’s UD & LR pin.
UD：L or Open；LR：H or Open UD：L or Open；LR：L
UD：H；LR：H or Open UD：H；LR：L
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9.6 DATA INPUT for DISPLAY COLOR
Input color
Red Data Green Data Blue Data
R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1 B0
MSB LSB MSB LSB MSB LSB
Basic Color
Black 0 0 0 0 0 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(63) 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0
Blue(63) 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1
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
Black 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Red (1) 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0
Red (2) 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0
: : : : : : : : : : : : : : : : : : :
: : : : : : : : : : : : : : : : : : :
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
Black 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Green (1) 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0
Green (2) 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0
: : : : : : : : : : : : : : : : : : :
: : : : : : : : : : : : : : : : : : :
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
Black 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Blue (1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
Blue (2) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
: : : : : : : : : : : : : : : : : : :
: : : : : : : : : : : : : : : : : : :
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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11. TOUCH PANEL
The type of touch panel used on this display is resistive, analog, 5-wire and film on glass, and more
characteristics are shown as below:
11.1 OPERATING CONDITIONS
Item Specification Remarks
Operating Voltage 5VDC -
11.2 ELECTRICAL CHARACTERISTICS
Item Specification Remarks
Resistance
Between Terminal X1-X2 300~1400Ω -
Y1-Y2 100~900Ω
Insulation Re sist ance X-Y 20MΩmin. At 25V DC
Linearity X ±1.5% max. Note 1
Y ±1.5% max.
Chattering 10ms max. -
Note 1: The test conditions and equipments of linearity are as below:
- Material of pen: poly-acetal resin
- End shape: R 0.8 mm
- Test force: 150 gf
- Pitch: 10 mm
- Test area is shown in Fig. 11.1
As shown in Fig. 11.2, applying voltage meter to measure Va, Vb and Vxm, where Va is the maximum
voltage in the active area; Vb is the minimum voltage in the active area; Vxm is the measured voltage
of point x selected by random. Afterwards, the linearity can be calculated by following equation:
%100
VbVa
VxmVxi
Linearity ,
where Vxi is the idea voltage of point x.
The method to measure the linearity of Y-axis is the same as above.
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11.3 MECHANICAL CHARACTERISTICS
Item Specification Remarks
Pen Input Pressure 50 ~ 150 g R0.8, Polyacetal Pen
Finger 50 ~ 150 g R8.0, Silicon Rubber
Surface Hardness 3H min. JIS K 5400
11.4 OPTICAL CHARACTERISTICS
Item Specification Remarks
Transmittance 77% min. -
11.5 SAFETY AND ATTENTIONS
1) Do not put heavy shock or stress on the touch panel.
2) Please use soft cloth or absorbent cotton with ethanol to clean the touch panel by gently wiping.
Moreover, please wipe it by horizontal or vertical direction instead of circling to prevent leaving sca rs
on the touch panel’s surface.
3) Do not use any harmful chemicals such as acetone, toluene, and isopropyl alcohol to clean the
display’s surface.
4) Please pay more attention on handling and assembly due to that the touch panel overhung this TFT
display outline.
5) Please ensure housing design is able to protect touch panel when unexpected pressure adding on
the edges and corners of it.
6) UV protection is recommended to avoid the possibility of performance degrading when touch panel
is likely applied under UV environment for a long period of time.
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NO. 7B64PS 2711-TX18D44VM2BPA-4 PAGE 11-2/2
12. APPEARANCE STANDARD
The appearance inspection is performed in a room around 500~1000 lx based on the conditions as
below:
- The distance between inspector’s eyes and display is 30 cm.
- The viewing zone is defined with angle
shown in Fig.12.1 The inspection should be performed
within 45∘when display is shut down. The inspection should be performed within 5∘when display is
power on.
Fig. 12.1
12.1 THE DEFINITION OF LCD ZONE
LCD panel is divided into 3 areas as shown in Fig.12.2 for appearance specification in next section. A
zone is the LCD active area (dot area); B zone is the area between A zone and metal frame.
In terms of housing design, B zone is the recommended window area customers’ housing should be
located in.
Fig. 12.2
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12.2 LCD APPEARANCE SPECIFICATION
The specification as below is defined as the amount of unex pected phenomenon or material in different
zones of LCD panel. The definitions of length, width and average diameter using in the table are shown
in Fig. 12.3 and Fig. 12.4.
Item Criteria Applied zone
Scratches
Length (mm) Width (mm) Maximum number Minimum space
A、B
Ignored W≦0.01 Ignored -
L≦40 W≦0.02 10 -
L≦20 W≦0.04 10 -
Round (Dot Shape)
Average diameter (mm) Maximum number Minimum space
D≦0.2 Ignore -
D≦0.4 10 -
Dent Serious one is not allowed A
Wrinkles in polarizer Serious one is not allowed A
Bubbles on polarizer
Average diameter (mm) Maximum number
A
D≦0.3 Ignored
D≦0.5 10
D≦1.0 5
1) Stains
2) Foreign Materials
3) Dark Spot
Filamentous (Line shape)
A、B
Length (mm) Width (mm) Maximum number
Ignored W≦0.02 Ignored
L≦2.0 W≦0.03 10
L≦1.0 W≦0.06 10
Round (Dot shape)
A、B
Average diameter (mm) Maximum number Minimum Spa ce
D≦0.22 Ignored -
D≦0.33 5 -
D＞0.33 0 -
In total Filamentous + Round=10
Those wiped out easily are acceptable
Dot-Defect
Type Maximum number
A
(Note 1)
Bright dot-defect
1 dot 4
2 adjacent dot 1
3 adjacent dot or above Not allowed
Density 2/ 20mm
In total 5
Dark dot-defect
1 dot 5
2 adjacent dot 2
3 adjacent dot or above Not allowed
Density 3/ 20mm
In total 5
In total 10
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2712-TX18D44VM2BPA-4 PAGE 12-2/4
Note 1: The definitions of dot defect are as below:
- The defect area of the dot must be bigger than half of a dot.
- For bright dot-defect, showing black pattern, the dot’s brightness must be over 30% brighter
than others.
- For dark dot-defect, showing white pattern, the dot’s brightness must be under 70% darker
than others.
- The definition of 1-dot-defect is the defect-dot, which is isolated and no adjacent defect-dot.
- The definition of adjacent dot is shown as Fig. 12.5.
- The Density of dot defect is defined in the area within diameter =20mm.
Fig. 12.5
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2712-TX18D44VM2BPA-4 PAGE 12-3/4
a
b
Lenght
Width
Average diameter =a+b
2
Fig 12.3 Fig 12.4
Length
12.3 TOUCH PANEL APPEARANCE SPECIFICATION
The specification as below is defined by the amount of unexpected material in different zones of touch
panel.
Item Criteria Applied zone
Scratches
Width (mm) Length (mm) Maximum number
A
W≧0.10 L≧10 Not allowed
0.10＞W≧0.05 L＜10 4 pcs max.
0.05＜W L＜10 Ignored
Foreign Materials
Filamentous (Line shape)
A
Width (mm) Length (mm) Maximum number
W＞0.05 L＞3 Not allowed
0.05≧W L≦3 Ignored
Round (Dot shape)
A
Average diameter (mm) Maximum number
D＞0.3 Not allowed
0.3≧D＞0.2 3 pcs max.
0.2≧D＞0.1 5 pcs max.
0.1≧D Ignored
D≦0.5 Ignored B
The limitation of glass flaw occurred on touch panel is defined in the table as below.
Item Specifications
Edge flaw
X 3.0 mm
Y 3.0 mm
Z Thickness
Corner flaw
X 3.0 mm
Y 3.0 mm
Z Thickness
Progressive flaw
Not allowed
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2712-TX18D44VM2BPA-4 PAGE 12-4/4
13. PRECAUTIONS
13.1 PRECAUTIONS of MOUNTING
1) Please refer to Fig. 13.1 for housing the display with touch panel into applications. The Fig. 13.1
shows some points as below:
- The cushion needs to be designed between housing and touch panel in order to avoid unexpected
pressure to cause any wrong reactions, and the cushion should be located in the insulated area.
- The housing should not cover the active area of touch panel as the figure shown.
Fig 13.1
13.2 PRECAUTIONS of ESD
1) Before handling the display, please ensure your body has been connected to ground to avoid any
damages by ESD. Also, do not touch display’s interface directly when assembling.
2) Please remove the protection film very slowly before turning on the display to avoid generating ESD.
13.3 PRECAUTIONS of HANDLING
1) In order to keep the appearance of display in good condition, please do not rub any surfaces of the
displays by sharp tools harder than 3H, especially touch panel, metal frame and polarizer.
2) Please do not stack the displays as this may damage the surface. In order to avoid any injuries,
please avoid touching the edge of the glass or metal frame and wore gloves during handling.
3) Touching the polarizer or terminal pins with bare hand should be avoided to prevent staining and
poor electrical contact.
4) Do not use any harmful chemicals such as acetone, toluene, and isopropyl alcohol to clean display’s
surfaces.
5) Please use soft cloth or absorbent cotton with ethanol to clean the display by gently wiping.
Moreover, when wiping the display, please wipe it by horizontal or vertical direction instead of
circling to prevent leaving scars on the display’s surface, especially polarizer.
6) Please wipe any unknown liquids immediately such as saliva, water or dew on the display to avoid
color fading or any permanently damages.
Case
Tape
Touch Panel
Case
Cushion Insulated Area
LCM
T/P Active area
Case opening
t＞0.3
>2.0
(0.2)
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2713-TX18D44VM2BPA-4 PAGE 13-1/2
7) Maximum pressure to the surface of the display must be less than 4
10 x 1,96 Pa. If the area of
adding pressure is less than 1 2
cm , the maximum pressure must be less than 1.96N.
13.4 PRECAUTIONS OF OPERATING
1) Please input signals and voltages to the displays according to the values defined in the section of
electrical characteristics to obtain the best performance. Any voltages over than absolute maximum
rating will cause permanent damages to this display. Also, any timing of the signals out of this
specification would cause unexpected performance.
2) When the display is operating at significant low temperature, the response time will be slower than it
at 25
C. In high temperature, the color will be slightly dark and blue compared to original pattern.
However, these are temperature-related phenomenon of LCD and it will not cause permanent
damages to the display when used within the operating temperature.
3) The use of screen saver or sleep mode is recommended when static images are likely for long
periods of time. This is to avoid the possibility of image sticking.
4) Spike noise can cause malfunction of the circuit. The recommended limitation of spike noise is no
bigger than 100 mV.
13.5 PRECAUTIONS of STORAGE
If the displays are going to be stored for years, please be aware the following notices.
1) Please store the displays in a dark room to avoid any damages from sunlight and other sources of
UV light.
2) The recommended long term storage temperature is between 10
C~35
Cand 55%~75% humidity to
avoid causing bubbles between polarizer and LCD glasses, and polarizer peeling from LCD glasses.
3) It would be better to keep the displays in the container, which is shipped from KOE, and do not
unpack it.
4) Please do not stick any labels on the display surface for a long time, especially on the polarizer.
KAOHSIUNG OPTO-ELECTRONICS INC. SHEET
NO. 7B64PS 2713-TX18D44VM2BPA-4 PAGE 13-2/2
14. DESIGNATION of LOT MARK
1) The lot mark is showing in Fig.14.1. First 4 digits are used to represent production lot, T represented
made in Taiwan, and the last 6 digits are the serial number.
Fig. 14.1
2) The tables as below are showing what the first 4 digits of lot mark are shorted for.
Lot Mark Lot MarkMonth Month
01
02
03
04
05
06
07
08
09
10
11
12
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
Week
1~7 days
8~14 days
15~21 days
22~28 days
29~31 days
1
2
3
4
5
Lot Mark
3) Except letters I and O, revision number will be shown on lot mark and following letters A to Z.
4) The location of the lot mark is on the back of the display shown in Fig. 14.2.
Fig. 14.2
KAOHSIUNG OPTO-ELECTRO NICS IN C. SHEET
NO. 7B64PS 2714-TX18D44VM2BPA-4 PAGE 14-1/1
TX18D44VM2BPA
1103T (5D) 123456
REV: A
KOE MADE IN TAIWAN
