DATE : Sep. 18th ,2013
FOR MESSRS :
CUSTOMER’S ACCEPTANCE SPECIFICATIONS
TX14D23VM5BPA
Contents
No.
ITEM
SHEET No.
PAGE
1
COVER
7B64PS 2701-TX14D23VM5BPA-2
1-1/1
2
RECORD OF REVISION
7B64PS 2702-TX14D23VM5BPA-2
2-1/1
3
GENERAL DATA
7B64PS 2703-TX14D23VM5BPA-2
3-1/1
4
ABSOLUTE MAXIMUM RATINGS
7B64PS 2704-TX14D23VM5BPA-2
4-1/1
5
ELECTRICAL CHARACTERISTICS
7B64PS 2705-TX14D23VM5BPA-2
5-1/1
6
OPTICAL CHARACTERISTICS
7B64PS 2706-TX14D23VM5BPA-2
6-1/2~2/2
7
BLOCK DIAGRAME
7B64PS 2707-TX14D23VM5BPA-2
7-1/1
8
RELIABILITY TESTS
7B64PS 2708-TX14D23VM5BPA-2
8-1/1
9
LCD INTERFACE
7B64PS 2709-TX14D23VM5BPA-2
9-1/7~7/7
10
OUTLINE DIMENSIONS
7B64PS 2710-TX14D23VM5BPA-2
10-1/2~2/2
11
TOUCH PANEL
7B64PS 2711-TX14D23VM5BPA-2
11-1/2~2/2
12
APPEARANCE STANDARD
7B64PS 2712-TX14D23VM5BPA-2
12-1/4~4/4
13
PRECAUTIONS
7B64PS 2713-TX14D23VM5BPA-2
13-1/2~2/2
14
DESIGNATION OF LOT MARK
7B64PS 2714-TX14D23VM5BPA-2
14-1/1
ACCEPTED BY:
KAOHSIUNG OPTO-ELECTRONICS INC.
PROPOSED BY:
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PAGE
1-1/1
2. RECORD OF REVISION
DATE
Sep.18,’13
SHEET No.
SUMMARY
11.2 ELECTRICAL CHARACTERISTICS
7B64PS 2711TX14D23VM5BPA-2 Revised :
Item
PAGE 11-1/2
X- axis
Circuit resistance
Y-axis
Specification
350  ~1070 
210  ~560 

Item
Circuit resistance
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Specification
X- axis
320  ~970 
Y-axis
220  ~695 
7B64PS 2702-TX14D23VM5BPA-2
PAGE
2-1/1
3. GENERAL DATA
3.1 DISPLAY FEATURES
This module is a 5.7” VGA of 4:3 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
TX14D23VM5BPA
Module Dimensions
131.0(W) mm x 102.2(H) mm x 9.1(D) mm typ.
LCD Active Area
115.2(W) mm x 86.4(H) mm
Dot Pitch
0.06 x 3(R, G, B)(W) x 0.18(H) mm
Resolution
640 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
Backlight
27 LEDs ( 3 serial x 9 parallel )
Weight
145g typ.
Interface
C-MOS; 18-bit RGB; 40 pins
Power Supply Voltage
3.3V for LCD; 12V for Backlight
Power Consumption
528mW for LCD ; 2.16W for Backlight
Viewing Direction
Super Wide Version
Touch Panel
4-wire resistive type; Film on Glass; Antiglare surface
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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
Storage Temperature
Top
Tst
-20
-30
70

C
Note 2
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.
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5. ELECTRICAL CHARACTERISTICS
5.1 LCD CHARACTERISTICS
Ta  25 C, VSS  0V
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
0.7VDD
-
VDD
“L” level
VSS
-
0.3VDD
V
Note 1
Power Supply Current
IDD
-
-
160
250
mA
Note 2
Vsync Frequency
-
-
60
67
Hz
-
Hsync Frequency
fv
fH
-
30.96
31.5
32.1
KHz
-
DCLK Frequency
f CLK
-
24.4
25.2
27.3
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, f v is set to 60 Hz.
Note 3: 0.4A fuse is applied in the module for IDD. For display activation and protection purpose, power
supply is recommended larger than 1.0A to start the display and break fuse once any short
circuit occurred.
5.2 BACKLIGHT CHARACTERISTICS
Ta  25 C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Remarks
LED Input Voltage
VLED
Backlight Unit
11.5
12.0
12.5
V
Note1
LED Forward Current
ILED
Backlight Unit
-
180
-
mA
-
LED Lifetime
-
180 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 130  .
Note 2: The estimated lifetime is specified as the time to reduce 50% brightness by applying 180 mA at
25  C .
Fig. 5.1
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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 around 500~1000 lx, the equipment has been set for the measurements as shown in
Fig 6.1.
T a  25  C , f v  60 Hz, V DD  3.3V
Item
Symbol
Brightness of White
-
Brightness Uniformity
-
Condition
Min.
  0 ,  0 ,
ILED= 180mA
Typ.
Max.
Unit
Remarks
2
Note 1
500
640
-
cd/m
70
-
-
%
Note 2
200
400
-
-
Note 3
Contrast Ratio
CR
Response Time
(Rising + Falling)
Tr + Tf
  0 ,  0
-
50
-
ms
Note 4
NTSC Ratio
-
  0 ,  0
-
50
-
%
-
Degree
Note 5
-
Note 6
Viewing Angle
Red
Color
Green
Chromaticit
y
Blue
White
x
  0 , CR  10
-
80
-
 x

-
80
-
y
  90 , CR  10
-
80
-
 y
  270  , CR  10
-
80
-
X
0.56
0.61
0.66
Y
0.31
0.36
0.41
X
0.32
0.37
0.42
0.52
0.57
0.62
0.10
0.15
0.20
Y
0.06
0.11
0.16
X
0.27
0.32
0.37
Y
0.29
0.34
0.39

  180 , CR  10

Y
X
  0 ,  0
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:
Brightness uniformity =
Min. Brightness
Max. Brightness
X100%
, which is based on the brightness values of the 9 points measured by BM-5 as shown in Fig. 6.2.
Dot (0,0)
320
960
1600
Photo detector:BM-5
Field 1∘
80
Distance:500 mm
240
400
P1
P2
P3
P4
P5
P6
P7
P8
P9
LCD panel
Fig. 6.1
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Note 3: The Contrast ratio is measured from the center point of the panel, P5, and defined as the
following equation:
Brightness of White
CR =
Brightness of Black
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.
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.

  90

 (x, y ,0)
  180
  0

  270
Note 6: The color chromaticity is measured from the center point of the panel, P5, as shown in Fig. 6.2.
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7. BLOCK DIAGRAM
(1,1)
(1,1920)
Power
Circuit
(480,1)
CN1
Gate Driver
VGA LCD Panel
VDD
Gamma
Voltage
Generator
(480,1920)
Signals
Source Driver
UD/LR
CN2
VLED
LED Backlight
Note 1: Signals are DE, Hsync, Vsync, CLK and RGB data bus.
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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
1) Storage
2) 80  C
240 hrs
Low Temperature
1) Storage
2) -30  C
240 hrs
Heat Cycle
1) Operating
2) –30  C ~80  C
3) 3hrs~1hr~3hrs
240 hrs
Thermal Shock
1) Non-Operating
2) -35  C  85  C
3) 0.5 hr  0.5 hr
240 hrs
High Temperature &
Humidity
1) Operating
2) 40  C & 85%RH
3) Without condensation
(Note 3)
240 hrs
Vibration
1) Non-Operating
2) 20~200 Hz
3) 2G
4) X, Y, and Z directions
1 hr for each direction
Mechanical Shock
ESD
1) Non-Operating
2) 10 ms
3) 50G
4)  X,  Y and  Z directions
Once for each direction
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: There is no display functionality failure occurred 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.
(  C)
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9. LCD INTERFACE
9.1 INTERFACE PIN CONNECTIONS
The display interface connector is FA5B040HP1R3000 made by JAE (Thickness: 0.3  0.05mm; Pitch:
0.5  0.05mm) and more details of the connector are shown in the section of outline dimension.
Pin assignment of LCD interface is as below:
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Signal
VDD
VDD
UD
LR
Vsync
DE
VSS
CLK
VSS
Hsync
VSS
B5
B4
B3
VSS
B2
B1
B0
VSS
G5
Function
Power Supply for Logic
Vertical Display mode Control
Horizontal Display mode Control
Vertical synchronous signal
Data Enable Signal
GND
Dot Clock
GND
Horizontal synchronous signal
GND
Blue Data (MSB)
Blue Data
Blue Data
GND
Blue Data
Blue Data
Blue Data (LSB)
GND
Green Data (MSB)
Pin No.
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Signal
G4
G3
VSS
G2
G1
G0
VSS
R5
R4
R3
VSS
R2
R1
R0
NC
VSS
NC
NC
NC
NC
Function
Green Data
Green Data
GND
Green Data
Green Data
Green Data (LSB)
GND
Red Data (MSB)
Red Data
Red Data
GND
Red Data
Red Data
Red Data (LSB)
No Connection
GND
No Connection
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.
The backlight interface connector is BHR-03VS-1 made by JAE, and pin assignment of backlight is as
below:
Pin No.
Signal
Level
1
VLED+
-
Power Supply for LED
2
NC
-
No connection
3
VLED-
-
GND
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9.2 TIMING CHART
A. SYNCHRONOUS MODE (DE grounded)
Fig. 9.1 Horizontal Timing of Synchronous Mode
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.
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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B. DE MODE (Hsync & Vsync grounded)
th = 800 CLK (1H)
DE
1
2
3
144
145
800 1
784
CLK
2
25.2M Hz (typ.)
144 CLK (typ.)
thd = 640 CLK (fixed)
16CLK (typ.)
Invalid data
Display data
Invalid data
R [0:5]
R
R
R
R
R
R
R
R
R
G [0:5]
G
G
G
G
G
G
G
G
G
B [0:5]
B
B
B
B
B
B
B
B
B
Fig. 9.3 Horizontal Timing of DE Mode
Fig. 9.4 Vertical Timing of DE Mode
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C. CLOCK AND DATA INPUT TIMING
Tcph
Tcwh
70%
CLK
1st
2nd
30%
30%
Tdsu Tdhd
Tcwl
70%
Data
1st RGB
Last
Data
640 RGB
2nd RGB
30%
Tesu
Tehd
70%
70%
DE
Fig. 9.5 Setup & Hold Time of Data and DE signal.
CLK
30%
Thsu
Thhd
Tvsu
Tvhd
Hsync
30%
Vsync
30%
Fig. 9.6 Setup & Hold Time of Hsync and Vsync signal
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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) = 60Hz to define.
A. SYNCHRONOUS MODE
Item
Hsync
Vsync
Symbol
Min.
Typ.
Max.
Unit
CLK Frequency
fclk
24.4
25.2
27.3
M Hz
Display Data
thd
640
640
640
Cycle Time
th
788
800
850
Pulse Width
Pulse Width and Back Porch
thp
5
30
-
thp + thb
144
144
144
Front Porch
thf
4
16
66
Display Line
tvd
480
480
480
Cycle Time
tv
516
525
535
Pulse Width
tvp
1
3
-
Pulse Width and Back Porch
tvp + tvb
35
35
35
Front Porch
tvf
1
10
20
Symbol
Min.
Typ.
Max.
Unit
CLK Frequency
fclk
24.4
25.2
27.3
M Hz
Display Data
thd
640
640
640
Cycle Time
th
788
800
850
Display Data
Cycle Time
tvd
480
480
480
tv
516
525
535
Symbol
Min.
Typ.
Max.
Unit
Duty
Tcwh
40
50
60
%
Cycle Time
Tcph
-
39.68
-
Setup Time
Tvsu
10
-
-
Hold Time
Tvhd
10
-
-
Setup Time
Thsu
10
-
-
Hold Time
Thhd
10
-
-
Setup Time
Tdsu
10
-
-
Hold Time
Tdhd
10
-
-
Setup Time
Tesu
10
-
-
Hold Time
Tehd
10
-
-
CLK
H
B. DE MODE
Item
Horizontal
Vertical
CLK
H
C. CLOCK AND DATA INPUT TIMING
Item
CLK
Vsync
Hsync
Data
DE
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9.4 POWER SEQUENCE
Note 1
VDD
0.7VDD
Signals
0.3VDD
Backlight
0.3VLED
Note 2
Fig. 9.7 Power Sequence Timing
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:H;LR:H
UD:H;LR:L
UD:L;LR:H
UD:L;LR:L
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9.6 DATA INPUT for DISPLAY COLOR
Data Signal
COLOR &
Gray Scale
Basic
Color
Red
Green
Blue
Black
Red (63)
Green (63)
Blue (63)
Cyan
Magenta
Yellow
White
Black
Red (1)
Red (2)
:
:
Red (62)
Red (63)
Black
Green (1)
Green (2)
:
:
Green (62)
Green (63)
Black
Blue (1)
Blue (2)
:
:
Blue (62)
Blue (63)
R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1
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
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
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
1
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
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
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1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
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
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0
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0
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1
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0
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0
0
0
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1
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KAOHSIUNG OPTO-ELECTRONICS INC.
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7B64PS 2709-TX14D23VM5BPA-2
PAGE
B0
0
0
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1
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1
0
1
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11. TOUCH PANEL
The type of touch panel used on this display is resistive, analog, 4-wire and film on glass, and more
characteristics are shown as below:
11.1 OPERATING CONDITIONS
Item
Specification
Remarks
Operating Voltage
DC 5V
DC 7V Max.
Operating Current
20 mA
-
11.2 ELECTRICAL CHARACTERISTICS
Item
Specification
Circuit resistance
Remarks
X- axis
320  ~970 
Y-axis
220  ~695 
-
X-Y
>20M 
At DC 25V
X
  1.5%
  1.5%
 10 ms
Insulation Resistance
Linearity
Y
Chattering
Note 1
-
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
2 mm
2 mm
2 mm
Test area
Vxm
Va
2 mm
Vb
Active area
Viewing area
Fig. 11.1
Fig. 11.2
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:
Linearity 
Vxi  Vxm
Va  Vb
 100 % ,
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
Finger
1.2N Max.
End shape: R8.0 mm
Pen
1.2N Max.
End shape: R0.8 mm
3H
JIS K 5400
Item
Specification
Remarks
Transmittance
77%
-
Activation force
Surface Hardness
11.4 OPTICAL CHARACTERISTICS
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 scars
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) 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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12. APPEARANCE STANDARD
The appearance inspection is performed in a dark 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.


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, which extended 1 mm out from LCD active
area; C zone is the area between B zone and metal frame.
In terms of housing design, B zone is the recommended window area customers’ housing should be
located in.
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12.2 LCD APPEARANCE SPECIFICATION
The specification as below is defined as the amount of unexpected 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
Length (mm)
Ignored
L≦40
L≦20
Width (mm)
Maximum number Minimum space
W≦0.02
Ignored
Scratches
0.02<W≦0.04
10
W≦0.04
10
Dent
Serious one is not allowed
Wrinkles in polarizer
Serious one is not allowed
Average diameter (mm)
Maximum number
D≦0.2
Ignored
Bubbles on polarizer
0.2<D≦0.3
12
0.3<D≦0.5
3
0.5<D
none
Filamentous (Line shape)
Length (mm)
Width (mm)
Maximum number
L≦2.0
W≦0.03
Ignored
L≦3.0
0.03<W≦0.05
6
L≦2.5
0.05<W≦0.1
1
Round (Dot shape)
1) Stains
2) Foreign Materials Average diameter (mm)
Maximum number
Minimum Space
3) Dark Spot
D<0.2
Ignored
0.2≦D<0.3
10
10mm
0.3≦D<0.4
5
30mm
0.4≦D
none
In total
Filamentous + Round=10
Those wiped out easily are acceptable
Type
Maximum number
1 dot
4
2 adjacent dot
1
Bright dot-defect
3 adjacent dot or above
Not allowed
Dot-Defect
(Note 1)
In total
1 dot
2 adjacent dot
Dark dot-defect
3 adjacent dot or above
In total
In total
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5
2
Not allowed
7
12
7B64PS 2712-TX14D23VM5BPA-2
A,B
A
A
A
A,B
A,B
A
PAGE
12-2/4
Width
a
Average diameter =
b
Length
Lenght
Fig 12.3
Note 1: The definitions of dot defect are as below:
a+b
2
Fig 12.4
- 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.
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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
Scratches
Foreign Materials
Criteria
Length (mm)
Maximum number
L≧10
Not allowed
L<10
4 pcs max.
L<10
Ignored
Filamentous (Line shape)
Width (mm)
Length (mm)
Maximum number
0.10≧W>0.05
3<L
Not allowed
0.05≧W
L≦3
Ignored
Round (Dot shape)
Average diameter (mm)
Maximum number
D>0.35
Not allowed
0.35≧D>0.25
6 pcs max.
D≦0.25
Ignored
Width (mm)
W>0.1
0.10≧W>0.05
0.05≧W
Applied zone
A,B
A,B
A,B
B
A,B
The limitation of glass flaw occurred on touch panel is defined in the table as below.
Item
Specifications
X  5.0 mm
Y  3.0 mm
Edge flaw
Z  Thickness
X  3.0 mm
Y  3.0 mm
Corner flaw
Z  Thickness
Not allowed
Progressive flaw
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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.
Cushion Area
(>3.6)
T/P Active Area
(0.2)
t>0.3
Case Opening
Cushion
Case
Touch Panel
Tape
LCM
Case
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.
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4
7) Maximum pressure to the surface of the display must be less than 1,96 x 10 Pa. If the area of
2
adding pressure is less than 1 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 C  and 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.
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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.
2) The tables as below are showing what the first 4 digits of lot mark are shorted for.
Month
Jan.
Feb.
Mar.
Apr.
May
Jun.
Lot Mark
01
02
03
04
05
06
Month
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
Lot Mark
07
08
09
10
11
12
Week
1~7 days
8~14 days
15~21 days
22~28 days
29~31 days
Lot Mark
1
2
3
4
5
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.
TX14D23VM5BPA
REV: A
1103T
(5D )
123456
KOE
MADE IN TAIWAN
Fig. 14.2
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