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REVISION HISTORY
Version Date Page Description
1.0 Aug.20, 2010 All Spec Ver.1.0 was first issued.
3.0 Oct.02, 2010 All Spec Ver.3.0 was first issued.
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PRODUCT SPECIFICATION
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1. GENERAL DESCRIPTION
1.1 OVERVIEW
N156BGE-L21 is a 15.6” (15.547” diagonal) TFT Liquid Crystal Display module with LED Backlight
unit and 40 pins LVDS interface. This module supports 1366 x 768 HD mode and can display
262,144 colors. The optimum viewing angle is at 6 o’clock direction.
1.2 GENERAL SPECIFICATI0NS
Item Specification Unit Note
Screen Size 15.547 diagonal
Driver Element a-si TFT active matrix - Pixel Number 1366 x R.G.B. x 768 pixel Pixel Pitch 0.252 (H) x 0.252 (V) mm Pixel Arrangement RGB vertical stripe - Display Colors 262,144 color Transmissive Mode Normally white - Surface Treatment Hard coating (3H), Glare - Luminance, White 220 Cd/m2
Power Consumption Total 5.184 W (Max.) @ cell 0.9 W (Max.), BL 4.284W (Max.) (1)
Note (1) The specified power consumption (with converter efficiency) is under the conditions at VCCS =
Note (1) Please refer to the attached drawings for more information of front and back outline dimensions.
Vertical (V) 209 209.5 210 mm
Thickness (T) - 5.2 5.5 mm
Horizontal 349.28 349.58 349.88 mm
Vertical 197.99 198.29 198.59 mm
Horizontal - 344.232 - mm
Vertical - 193.536 - mm
Weight - 430 445 g
2.1 CONNECTOR TYPE
Pin1 Pin40
(1)
Please refer Appendix Outline Drawing for detail design.
Connector Part No.: IPEX-20455-040E-12 or Tyco 5-2069716-3
User’s connector Part No: IPEX-20453-040T-01
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3. ABSOLUTE MAXIMUM RATINGS
3.1 ABSOLUTE RATINGS OF ENVIRONMENT
Item Symbol
Storage Temperature TST -20 +60 ºC (1)
Operating Ambient Temperature TOP 0 +50 ºC (1), (2)
Note (1) (a) 90 %RH Max. (Ta <= 40 ºC).
(b) Wet-bulb temperature should be 39 ºC Max. (Ta > 40 ºC).
(c) No condensation.
Note (2) The temperature of panel surface should be 0 ºC min. and 60 ºC max.
Relative Humidity (%RH)
100
95
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PRODUCT SPECIFICATION
Value
Min. Max.
Unit Note
80
60
40
20
8
5
Operating
S
Temperature (ºC)
3.2 ELECTRICAL ABSOLUTE RATINGS
3.2.1 TFT LCD MODULE
Item Symbol
Power Supply Voltage VCCS -0.3 +4.0 V
Logic Input Voltage VIN -0.3 VCCS+0.3 V
Converter Input Voltage
Converter Control Signal Voltage
Converter Control Signal Voltage
LED_VCCS
LED_PWM,
LED_EN
Value
Min. Max.
-0.3 24 V (1)
-0.3 5 V (1)
-0.3 5 V (1)
Unit Note
8060-20 40 0 20 -40
(1)
Note (1) Stresses beyond those listed in above “ELECTRICAL ABSOLUTE RATINGS” may cause
permanent damage to the device. Normal operation should be restricted to the conditions
described in “ELECTRICAL CHARACTERISTICS”.
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4. ELECTRICAL SPECIFICATIONS
4.1 FUNCTION BLOCK DIAGRAM
LVDS Display
Data & Clock
VCCS
GND
Data
EDID
CLK
EDID
V
EDID
INPUT CONNECTOR
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PRODUCT SPECIFICATION
SCAN DRIVER IC
TIMING ONTROLLER
TFT LCD
PANEL
DC/DC CONVERTER &
REFERENCE VOLTAGE
GENERATOR
DATA DRIVER IC
EDID
EEPROM
Converter
Input Signals
4.2. INTERFACE CONNECTIONS
PIN ASSIGNMENT
Pin Symbol Description Remark
1 NC No Connection (Reserve)
2 VCCS Power Supply (3.3V typ.)
3 VCCS Power Supply (3.3V typ.)
4 VEDID DDC 3.3V power
5 NC No Connection (Reserved for CMI test)
6 CLKEDID DDC clock
7 DATAEDID DDC data
8 Rxin0- LVDS differential data input
9 Rxin0+ LVDS differential data input
10 VSS Ground
11 Rxin1- LVDS differential data input
12 Rxin1+ LVDS differential data input
13 VSS Ground
14 Rxin2- LVDS Differential Data Input
15 Rxin2+ LVDS Differential Data Input
16 VSS Ground
17 RxCLK- LVDS differential clock input
18 RxCLK+ LVDS differential clock input
19 VSS Ground
20 NC No Connection (Reserve)
21 NC No Connection (Reserve)
22 VSS Ground
23 NC No Connection (Reserve)
LED CONVERTER BACKLIGHT UNIT
R0-R5, G0
G1~G5, B0, B1
B2-B5,HS,VS, DE
LVDS CL K
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24 NC No Connection (Reserve)
25 VSS Ground
26 NC No Connection (Reserve)
27 NC No Connection (Reserve)
28 VSS Ground
29 NC No Connection (Reserve)
30 NC No Connection (Reserve)
31 LED_GND LED Ground
32 LED_GND LED Ground
33 LED_GND LED Ground
34 NC No Connection (Reserve)
35 LED_PWM PWM Control Signal of LED Converter
36 LED_EN Enable Control Signal of LED Converter
37 NC No Connection (Reserve)
38 LED_VCCS LED Power Supply
39 LED_VCCS LED Power Supply
40 LED_VCCS LED Power Supply
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PRODUCT SPECIFICATION
Note (1) The first pixel is odd as shown in the following figure.
1,1
(odd)
2,1
1,2
(even)
2,2
1,3
(odd)
1,4
(even)
3,1
Pitch
1,Xmax
Pitch
Ymax,1
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Ymax,
Xmax
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4.3 ELECTRICAL CHARACTERISTICS
4.3.1 LCD ELETRONICS SPECIFICATION
Parameter Symbol
Power Supply Voltage VCCS 3.0 3.3 3.6 V (1)-
Ripple Voltage VRP - 50 - mV (1)-
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PRODUCT SPECIFICATION
Value
Unit Note
Min. Typ. Max.
Inrush Current I
Mosaic
Power Supply Current
Black
Win XP
1H2V
- - 1.5 A (1),(2)
RUSH
lcc
ˀ
ˀ
ˀ
260 270 mA (3)a
320 350 mA (3)b
265 290 mA
- 310 340 mA
Note (1) The ambient temperature is Ta = 25 ± 2 ºC.
Note (2) I
: the maximum current when VCCS is rising
RUSH
I
: the maximum current of the first 100ms after power-on
IS
Measurement Conditions: Shown as the following figure. Test pattern: black.
+3.3V
Q1 2SK1475
R1
47K
FUSE
C3
1uF
(High to Low)
(Control Signal)
SW
+12V
C1
1uF
VR1
R2
1K
47K
0.01uF
Q2
2SK1470
C2
VCCS
(LCD Module Input)
VCCS rising time is 0.5ms
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Note (3) The specified power supply current is under the conditions at VCCS = 3.3 V, Ta = 25 ± 2 ºC, DC
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PRODUCT SPECIFICATION
Current and f
a. Mosaic Pattern
= 60 Hz, whereas a power dissipation check pattern below is displayed.
v
b. Black Pattern
Active Area
Active Area
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4.3.2 LED CONVERTER SPECIFICATION
Parameter Symbol
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PRODUCT SPECIFICATION
Value
Unit Note
Min. Typ. Max.
Converter Input power supply voltage
Converter Inrush Current
LED_Vccs
ILED
RUSH
6.0 12.0 21.0 V
- - 1.5 A (1)
Backlight On 2.0 - 5 V
EN Control Level
Backlight Off
0 - 0.5 V
PWM High Level 2.3 - 5 V
PWM Control Level
PWM Low Level
0 - 0.5 V
10 - 100 %
PWM Control Duty Ratio
1 - 100 % (2)
PWM Control Permissive Ripple
Voltage
PWM Control Frequency f
VPWM_pp
100 - 2K Hz (3)
PWM
- - 100 mV
LED Power Current LED_VCCS =Typ. ILED 288 339 398 mA (4)
Note (1) ILED
ILED
: the maximum current when LED_VCCS is rising,
RUSH
: the maximum current of the first 100ms after power-on,
IS
Measurement Conditions: Shown as the following figure. LED_VCCS = Typ, Ta = 25 ± 2 ºC, f
= 200 Hz, Duty=100%.
PWM
LED_VCCS(Typ)
Q1 IRL3303
VR1
R1
47K
47K
R2
1K
0.01uF
Q2
IRL3303
C2
(High to Low)
(Control Signal)
SW=24V
LED_VCCS(Typ)
C1
1uF
FUSE
C3
1uF
(LED Converter Input)
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PRODUCT SPECIFICATION
LED_VCC
LED_PWM
LED_EN
ILED
0V
0V
0V
ILED
VLED rising time is 0.5ms
0.5ms
90%
10%
Rush
100ms
ILED
IS
Note (2) If the PWM control duty ratio is less than 10%, it is difficult to control the brightness linearity
Note (3) If PWM control frequency is applied in the range less than 1KHz, the “waterfall” phenomenon on
the screen may be found. To avoid the issue, it’s a suggestion that PWM control frequency should
follow the criterion as below.
PWM control frequency f
dfN)33.0( f
should be in the range
PWM
fNd)66.0(
PWM
N : Integer )3(tN
f : Frame rate
Note (4) The specified LED power supply current is under the conditions at “LED_VCCS = Typ.”, Ta = 25
± 2 ºC, f
Note (5) Within the specified PWM control duty ratio range, CMI’s LCD module can pass the following
acoustic noise test. The test condition refers to ISO-7779 and is shown as the following figure.
= 200 Hz, Duty=100%.
PWM
LED_VCCS = Min., Ta = 25 ± 2 ºC, (D
while operating on black pattern with CMI’s own pattern generator. All sound pressure of scanning
band 630Hz - 20KHz should be kept under 20dBA. If lower noise level is required, more technical
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4.5 DISPLAY TIMING SPECIFICATIONS
The input signal timing specifications are shown as the following table and timing diagram.
Refresh rate 60Hz
Signal Item SymbolMin. Typ. Max. Unit Note
DCLK Frequency 1/Tc 62.4 69.3 72.8 MHz -
Vertical Total Time TV 772 788 793 TH -
Vertical Active Display Period TVD 768 768 768 TH -
DE
Refresh rate 50Hz
Signal Item SymbolMin. Typ. Max. Unit Note
DCLK Frequency 1/Tc 57.41860.4463.462 MHz -
DE
Refresh rate 40Hz
Signal Item SymbolMin. Typ. Max. Unit Note
DCLK Frequency 1/Tc 45.9348.3550.77 MHz -
DE
Note (1) Because this module is operated by DE only mode, Hsync and Vsync are ignored.
Vertical Active Blanking Period TVB TV-TVD20 TV-TVD TH -
Horizontal Total Time TH 145614661492 Tc -
Horizontal Active Display Period THD 136613661366 Tc -
Horizontal Active Blanking Period THB
Vertical Total Time TV 772 788 793 TH -
Vertical Active Display Period TVD 768 768 768 TH -
Vertical Active Blanking Period TVB TV-TVD20 TV-TVD TH -
Horizontal Total Time TH 152315341561 Tc -
Horizontal Active Display Period THD 136613661366 Tc -
Horizontal Active Blanking Period THB
Vertical Total Time TV 772 788 793 TH -
Vertical Active Display Period TVD 768 768 768 TH -
Vertical Active Blanking Period TVB TV-TVD20 TV-TVD TH -
Horizontal Total Time TH 152315341561 Tc -
Horizontal Active Display Period THD 136613661366 Tc -
Horizontal Active Blanking Period THB
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PRODUCT SPECIFICATION
TH-THD
TH-THD
TH-THD
100
168
168
TH-THD
TH-THD
TH-THD
Tc -
Tc -
Tc -
INPUT SIGNAL TIMING DIAGRAM
DE
DCLK
DE
DATA
TC
HD
T
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4.6 POWER ON/OFF SEQUENCE
The power sequence specifications are shown as the following table and diagram.
Symbol
t1 0.5 - 10 ms
t2 0 - 50 ms
t3 0 - - ms
t4 150 - - ms
t5 200 - - ms
t6 0 - - ms
t7 0 - 10 ms
tA 0.5 - 10 ms
t
B
tC 0 - - ms
tD 0 - - ms
tE 0 - - ms
tF 0 - - ms
Min. Typ. Max.
0
Value
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PRODUCT SPECIFICATION
Unit Note
ˀ
ms
- Power Supply
for LCD, VCCS
- Interface Signal
(LVDS Signal of
Transmitter), V
- Power Supply for
LED Converter,
LED_VCCS
- LED Converter
Dimming Signal,
LED_PWM
- LED Converter
Enable Signal,
LED_EN
Power On
90%
10%
0V
0V
I
0V
0V
0V
Power Off
t1
t2
Valid Data
t6 t5
90%
10%
tA
tC
PWM Signal
tE t
90%
tB
t
D
F
90%
10%
t3
t7
10%
10%
t4
Note (1) Please don’t plug or unplug the interface cable when system is turned on.
Note (2) Please avoid floating state of the interface signal during signal invalid period.
Note (3) It is recommended that the backlight power must be turned on after the power supply for LCD and the
interface signal is valid.
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5. OPTICAL CHARACTERISTICS
5.1 TEST CONDITIONS
Item Symbol Value Unit
Ambient Temperature Ta
Ambient Humidity Ha
Supply Voltage VCC 3.3 V
Input Signal According to typical value in "3. ELECTRICAL CHARACTERISTICS"
LED Light Bar Input Current IL 120 mA
The measurement methods of optical characteristics are shown in Section 5.2. The following items
should be measured under the test conditions described in Section 5.1 and stable environment shown in
Note (5).
5.2 OPTICAL SPECIFICATIONS
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PRODUCT SPECIFICATION
o
25r2
50r10
C
%RH
Item Symbol Condition Min. Typ. Max. UnitNote
Contrast Ratio CR 500 650 - - (2),(5),(8)
Response Time
Luminance of White (5P) L
White Variation (5P)
White Variation (13P)
Color gamut C.G 55 60 % (5),(7),(8)
Red
Color
Chromaticity
Viewing Angle
Green
Blue
White
Horizontal
Vertica l
TR - 3 8 ms
- 8 13 ms
T
F
185 220 - cd/m2(4),(5),(8)
AVE
GW
GW
=0q, TY =0q
T
Rx
Ry
Gx
Gy
Bx
By
Wx 0.313 Wy
Tx+
T
-
x
TY+
T
-
Y
x
Viewing Normal Angle
CRt10
80 -- % (5),(6),(8)
65 -- % (5),(6),(8)
0.617
0.340
0.320
Typ.-
0.03
40 45 40 45 15 20 40 45 -
0.598
0.160
0.084
0.329
Typ.+
0.03
-
-
-
-
-
-
-
Deg.(1),(5),(8)
(3),(8)
(1), (5)
(8)
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.67 ms
Note (1) Definition of Viewing Angle (Tx, Ty):
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PRODUCT SPECIFICATION
Normal
Tx = Ty = 0º
TX- = 90º
x-
6 o’clock
T
y- = 90º
y-
Note (2) Definition of Contrast Ratio (CR):
The contrast ratio can be calculated by the following expression.
Contrast Ratio (CR) = L63 / L0
L63: Luminance of gray level 63
L 0: Luminance of gray level 0
CR = CR (1)
Ty-Ty
Tx
Tx
12 o’clock direction
y+
T
y+ = 90º
x+
TX+ = 90º
CR (X) is corresponding to the Contrast Ratio of the point X at Figure in Note (6).
Note (3) Definition of Response Time (T
100%
90%
Optical
Response
10%
0%
T
R
66.67 ms
, TF):
R
66
Time
T
F
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(
)
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PRODUCT SPECIFICATION
Note (4) Definition of Average Luminance of White (L
Measure the luminance of gray level 63 at 5 points
L
= [L (1)+ L (2)+ L (3)+ L (4)+ L (5)] / 5
AVE
L (x) is corresponding to the luminance of the point X at Figure in Note (6)
Note (5) Measurement Setup:
The LCD module should be stabilized at given temperature for 20 minutes to avoid abrupt
temperature change during measuring. In order to stabilize the luminance, the measurement
should be executed after lighting Backlight for 20 minutes in a windless room.
LCD Module
LCD Panel
USB2000
or equivalent
AVE
):
CS-2000T
or equivalent
Center of the Screen
500 mm
Note (6) Definition of White Variation (GW):
Measure the luminance of gray level 63 at 5 points
GW
= {Minimum [L (1)~ L (5)] / Maximum [L (1)~ L (5)]}*100%
5p
GW
= {Minimum [L (1)~ L (13)] / Maximum [L (1)~ L (13)]}*100%
13p
˄˃
ˉ
˛˂ˇ
˅
˛
ˌ
ˇˈ
ˊ
ˆ
˄
Light Shield Room
Ambient Luminance < 2 lux
ˋ
X
: Test Point
˄˃
X=1 to 13
ʳ
˛˂ˇ˛˂ˇ˛˂ˇ
˄˃
˄˄
˄˃˄˃
˪˂ˇ˪˂ˇ˪˂ˇ˪˂ˇ
˄˅
˪
˄ˆ
Active area
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Note (7) Definition of color gamut (C.G%):
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PRODUCT SPECIFICATION
C.G%= ΓR G B /ΓR
R
R, G, B
ΓR
, G0, B0 : color coordinates of red, green, and blue defined by NTSC, respectively.
0
: color coordinates of module on 63 gray levels of red, green, and blue, respectively.
0 G0 B0
ΓR G B: area of triangle defined by R, G, B
0 G0 B0
,*100%
: area of triangle defined by R0, G0, B0
˖˜˘ʳ˄ˌˆ˄
˃ˁˌ
˃ˁˋ
˃ˁˊ
˃ˁˉ
˃ˁˈ
˃ˁˇ
˃ˁˆ
˃ˁ˅
˃ˁ˄
˃
˃˃ˁ˅˃ˁˇ˃ˁˉ˃ˁˋ
G
0
G
R
0
R
B
B
0
Note (8) The listed optical specifications refer to the initial value of manufacture, but the condition of
the specifications after long-term operation will not be warranted.
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Standard timing ID # 3
Standard timing ID # 3
Standard timing ID # 4
Standard timing ID # 4
Standard timing ID # 5
Standard timing ID # 5
Standard timing ID # 6
Standard timing ID # 6
Standard timing ID # 7
Standard timing ID # 7
Standard timing ID # 8
Standard timing ID # 8
Detailed timing description # 1 Pixel clock (“69.3MHz”, According to
VESA CVT Rev1.1)
# 1 Pixel clock (hex LSB first)
# 1 H active (“1366”)
# 1 H blank (“100”)
# 1 H active : H blank (“1366 :100”)
# 1 V active (”768”)
# 1 V blank (”20”)
# 1 V active : V blank (”768 :20”)
# 1 H sync offset (”16”)
# 1 H sync pulse width ("34”)
# 1 V sync offset : V sync pulse width (”2 : 6”)
# 1 H sync offset : H sync pulse width : V sync offset : V sync width
(”16: 34 : 2 : 6”)
# 1 H image size (”344 mm”) 58
# 1 V image size (”193 mm”) C1
# 1 H image size : V image size (”344 : 193”)
# 1 H boarder (”0”)
# 1 V boarder (”0”)
# 1 Non-interlaced, Normal, no stereo, Separate sync, H/V pol
Negatives
# 2 FE (hex) defines ASCII string (Model Name “N156BGE-L21”,
ASCII)
# 2 Flag
# 2 1st character of name (“N”)
# 2 2nd character of name (“1”)
# 2 3rd character of name (“5”)
# 2 4th character of name (“6”)
# 2 5th character of name (“B”)
# 2 6th character of name (“G”)
# 2 7th character of name (“E”)
# 2 8th character of name (“-”)
# 2 9th character of name (“L”)
# 2 Ath character of name (“1”)
# 2 New line character indicates end of ASCII string
# 2 Padding with “Blank” character
Detailed timing description # 3
# 3 Flag
# 3 Reserved
# 3 FE (hex) defines ASCII string (Vendor “CMO”, ASCII)
# 3 Flag
# 3 1st character of string (“C”)
# 3 2nd character of string (“M”)
# 3 3rd character of string (“O”)
# 3 New line character indicates end of ASCII string
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
# 3 Padding with “Blank” character
Detailed timing description # 4
# 4 Flag
# 4 Reserved
# 4 FE (hex) defines ASCII string (Model Name“N156BGE-L21”,
ASCII)
# 4 Flag
# 4 1st character of name (“N”) 4E
# 4 2nd character of name (“1”) 31
# 4 3rd character of name (“5”) 35
# 4 4th character of name (“6”) 36
# 4 5th character of name (“B”) 42
# 4 6th character of name (“G”) 47
# 4 7th character of name (“E”) 45
# 4 8th character of name (“-”) 2D
# 4 9th character of name (“L”)
# 4 9th character of name (“2”)
# 4 Ath character of name (“1”)
# 4 New line character indicates end of ASCII string
# 4 Padding with “Blank” character
Extension flag
Checksum
32 00110010
31 00110001
0A 00001010
20 00100000
00 00000000
00 00000000
00 00000000
FE 1111111 0
00 00000000
43 01000011
4D 01001101
4F 01001111
0A 00001010
20 00100000
20 00100000
20 00100000
20 00100000
20 00100000
20 00100000
20 00100000
20 00100000
20 00100000
00 00000000
00 00000000
00 00000000
FE 1111111 0
00 00000000
01001110
00110001
00110101
00110110
01000010
01000111
01000101
00101101
4C 01001100
32 00110010
31 00110001
0A 00001010
20 00100000
00 00000000
95 10010101
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Appendix. OUTLINE DRAWING
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PRODUCT SPECIFICATION
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PRODUCT SPECIFICATION
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PRODUCT SPECIFICATION
Appendix. LCD MODULE INSPECTION SPECIFICATION
A. Description
These inspection standards shall be applied to LCD Module supplied by CHI MEI Optoelectronics
Corporation.
B. The environmental condition of inspection
The environmental condition and visual inspection shall be conducted as below.
(1) Ambient temperature : 15~25℃
(2) Humidity: 25~75 %RH
(3) External appearance inspection shall be conducted by using a single 20W fluorescent lamp or equivalent
illumination.
(4) Panel visual inspection on the operation condition for cosmetic shall be conducted at the distance 30cm
between the LCD module and eyes of inspector.
(5) Using method for ND Filter
When using ND Filter for judging Mura, placing ND Filter near Mura defect and get close to the
surface of LCD Panel (its distance shall be 1~2cm between the surface of Panel and ND Filter).
Don’t touch the surface of polarizer to avoid scratching polarizer, and then move to the defect
position to judge mura by view angel 90 degree (The viewing angle shall be 90 degree to the right top
of Mura defect with panel)
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PRODUCT SPECIFICATION
C. Classification of defects
Defects are classified two types, major defect and minor defect according to the defect. And, the definition of
defects is classified as below.
(1) Major defect
Any defect may result in functional failure, or reduce the usability of product for its purpose. For example,
electrical failure, deformation and etc..
(2) Minor defect
A defect that is not to reduce the usability of product for its intended purpose and un-uniformity, dot defect and
etc..
The criteria on major and/or minor judgement will be according with the classification of defects.
D. Inspection Criteria
(1) Definition of dot defect
Define spec for 2 dot adjacent and minimum distance
2-adjacent(Linked Pixels)
Κsub-Pixel(R,G,B)
Minimum Distance;
Lit to LitΚLЇ=15mm
Unlit to UnlitΚLЇ=5mm
Lit to UnlitΚNot Applicable
L
L
L
L:Sub-Pixel to Sub-Pixel,Sub-Pixel to 2-adjacent or 2-adjacent to 2-adjacent
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PRODUCT SPECIFICATION
(2) Display Inspection
a) Ambient Illumination: 250 Lux or more for light on inspection
b) Viewing Angle: Within LCD Viewing Angle Specification
c) Inspection Pattern (Bright dot): In black pattern
Inspection Pattern (Dark dot): In red, green , blue pattern
Items
XGA
WXGA
SXGA+
WXGA+
WSXGA+
UXGA
WUXGA
HD
HD+
FHD
N≦2 N≦2(G=1)N≦2(G=0) N≦2(G=0)
N≦1(G=0)N≦0 N≦0 N≦0
N≦0 N≦0 N≦0 N≦0
N≦3 N≦5 N≦10 N≦3
N≦1 N≦1 N≦2 N≦1
N≦0 N≦0 N≦0 N≦0
L≧15mm L≧15mm L≧15mm L≧15mm
L≧5mm L≧5mm L≧5mm L≧5mm
Bright dot
Dark dot
Distance
Random
2 dots adjacent
3 dots adjacent or
more
Random
2 dots adjacent
3 dots adjacent or
more
Lit to Lit
Unlit to Unlit
Lit to Unlit Not allowable Not allowable Not allowable Not allowable
Display failure (V-line/H-line/Cross line etc.) Not allowable
Mura
Mura defect can not show in 50% gray pattern with 8% ND-filter or judge by limit
sample if necessary
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b
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PRODUCT SPECIFICATION
(3) Appearance inspection
a) Ambient Illumination: 500 ~ 700 Lux
b) Viewing Angle: Backlight-Off Condition: At Right Angle To Polarizer Surface
Backlight-On Condition: Within LCD Viewing Angle Specification
c) Inspection Pattern: In White and 32-Gray(Half-Gray)Screens(Backlight-On)
Items Size(mm) Acceptable count
W<0.05 Ignore
1. Scratch(Line Shape)
: B/L –off condition
2. Dent
: B/L –off condition
3. Bubble
: B/L –off condition
4. Foreign material
(Line-shape: stain
inclusion)
:B/L-on condition
5. Foreign material
(Dot-shape: stain
inclusion)
:B/L-on condition
6. Peeling on Polizer edge
:B/L-off condition
a
D=(a+b)/2 W: width, LΚlength
0.05=<W<0.1; 0.3=<L=<3.0N=<4
0.10=<W or 3.0<L N=0
Shall be no visible at B/L on.
D<0.2 Ignore
0.2=<D<0.5 N=<5
0.5=<D N=0
Spacing between defects shall be more than 30 mm.
(0.2=<D<0.5)
Shall be no visible at B/L on.
D<0.2 Ignore
0.2=<D<0.5 N=<5
0.5=<D N=0
Shall be no visible at B/L on.
W<0.05 Ignore
0.05=<W<0.10; 0.3<L=<2.0N=<4
0.10<W or 2.0<L N=0
Shall be no visible at B/L on.
D<0.2 Ignore
0.2=<D<0.5 N=<5
0.5=<D N=0
D<0.2 Ignore
0.2=<D<0.5 N=<5
0.5=<D N=0
Bubble or glue shall not be visible within PC bezel
opening area with specified inspection viewing angle.
Continuous peeling off on polarizer edge shall be
discussed.
Shall be no visible at B/L on.
L
W
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PRODUCT SPECIFICATION
E. External Appearance Inspection Criteria
Item Contents
Screw
CCFT cable
Metal frame
(Bezel)
Parts mounting, incomplete assembly, deformation, oxidized, crooked or rusty is not
permitted.
Cable not continuous、Break-off 、Connector Burn-off /Break-off
Scratch
*Noticeable scratch and exfoliation coating are not permitted.
*The oxidized metal is not permitted.
Incomplete assembly is not permitted.
Scratch The scratch which may causes a problem in practical use is not permitted.
Backlight
Break-off Breaking off is not permitted.
Crack The crack is not permitted.
Stain on
Polarizer
The stain which can’t be wiped off is not permitted.
Tape/Label Incorrect position, missed label is not permitted.
Connector Oxidized/rusty connector is not permitted.
Outline size Spec. out is not permitted.
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PRODUCT SPECIFICATION
F. Classification of defects
Inspection Item Criteria and Description Defect type
Vertical line Signal input, vertical line off or irregular V-line appears major
Horizontal line Signal input, horizontal line off or irregular H-line appears major
Cross line Pattern signal input, a correct display is not obtained major
No display Signal input, display is dead major
Irregular display Pattern signal input, a correct display is not obtained major
Dots defect Exceed specified standards minor
Scratch and Dent
on polarizer
Exceed specified standards minor
Foreign material Exceed specified standards minor
Mura
External Appearance
Mura defect can not show in 50% gray pattern with 8% ND-filter
or judge by limit sample if necessary
Rust, deformation, irregular plating, coating missing etc.
A appearance defect that do not affect function or performance
minor
minor
Bezel claw Bezel claw missing or not bent major
Polarizer bubble Exceed specified standards minor
Flicker No noticeable flicker by naked eyes at any gray scale level major
In 50% gray pattern, hold LCD panel TOP edge (PCB side) by
LCD Pooling
both hands and swing slightly back and forth 2 times per second
minor
for 3 cycles by 15 degrees (Range 30 degrees)
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