Spec No. TQ3C-8EAS0-E1DAQ05-00
SPEC
Date August 10, 2008
TYPE : KG047QVLAA-G020
< 4.7 inch QVGA transmissive blue mode monochrome STN
with LED backlight >
CONTENTS
1. Application
2. Construction and outline
3. Mechanical specifications
4. Absolute maximum ratings
5. Electrical characteristics
6. Optical characteristics
7. Circuit block diagram
8. Interface signals
9. Interface timing chart
10. Input timing characteristics
11. Supply voltage sequence condition
12. Backlight characteristics
13. Lot number identification
14. Warranty
15. Precautions for use
16. Reliability test data
17. Outline drawing
KYOCERA CORPORATION
KAGOSHIMA HAYATO PLANT
LCD DIVISION
This specification is subject to change without notice.
Consult Kyocera before ordering.
Designed by: Engineering dept. Confirmed by: QA dept.
Original
Issue Date Prepared Checked
Approved
Checked
Approved
August 10, 2008
Sep.5,2008
Spec No.
TQ3C-8EAS0-E1DAQ05-00
Part No.
KG047QVLAA-G020
Page
-
Warning
1. This Kyocera LCD module has been specifically designed for use only in
electronic devices and industrial machines in the area of audio control,
office automation, industrial control, home appliances, etc. The module
should not be used in applications where the highest level of safety and
reliability are required and module failure or malfunction of such module
results in physical harm or loss of life, as well as enormous damage or loss.
Such fields of applications include, without limitation, medical, aerospace,
communications infrastructure, atomic energy control. Kyocera expressly
disclaims any and all liability resulting in any way to the use of the module
in such applications.
2. Customer agrees to indemnify, defend and hold Kyocera harmless
from and against any and all actions, claims, damages, liabilities,
awards, costs, and expenses, including legal expenses, resulting from or
arising out of Customer's use, or sale for use, or Kyocera modules in
applications.
Caution
1. Kyocera shall have the right, which Customer hereby acknowledges, to
immediately scrap or destroy tooling for Kyocera modules for which no
Purchase Orders have been received from the Customer in a two-year period.
Spec No.
TQ3C-8EAS0-E1DAQ05-00
Part No.
KG047QVLAA-G020
Page
-
Revision record
Designed by : Engineering dept. Confirmed by : QA dept.
Date Prepared Checked Approved Checked Approved
Rev.No. Date Page Descriptions
Spec No.
TQ3C-8EAS0-E1DAQ05-00
Part No.
KG047QVLAA-G020
Page
1
M022070
1. Application
This document defines the specification of KG047QVLAA-G020. (RoHS Compliant)
2. Construction and outline
LCD
Duty ratio
Backlight system
Polarizer
Additional circuit
: Transmissive blue mode monochrome dot matrix type STN
: 1/240 duty
: LED
: Glare treatment
: Bias voltage circuit, Randomizing circuit,
DC/DC converter circuit, Temperature compensation circuit
3. Mechanical specifications
Item Specification Unit
Outline dimensions
122.4 (W) × 90(H) × 5.7(D)
(PCB and components not included.)
※Refer outline drawing in detail
mm
Active area 95.98 (W) × 71.98 (H)
(12.0cm / 4.7 inch (Diagonal)) mm
Effective viewing area 98 (W) × 74 (H) mm
Dot format 320 (W) × 240 (H) dot
Dot size 0.28(W) × 0.28(H) mm
Dot pitch 0.30 (W) × 0.30 (H) mm
Base color *1 Normally Blue -
Mass 90 g
*1 Due to the characteristics of the LCD material, the color varies with environmental temperature.
Spec No.
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Part No.
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M022070
4. Absolute maximum ratings
4-1. Electrical absolute maximum ratings
Item Symbol Min. Max. Unit
Supply voltage for logic VDD 0 6.0 V
Supply voltage for LCD driving VCONT 0 VDD V
Input signal voltage *1 V
IN 0 VDD V
FRM frequency fFRM - 150 Hz
LED forward current *2 IF - 20 mA
Reversed voltage *2 VR - 5 V
*1 Input signal : FRM, LOAD, CP, DISP, D0〜D3
*2 For each “AN1-CA1”, “AN2-CA2”
4-2. Environmental absolute maximum ratings
Item Symbol Min. Max. Unit
Operating temperature *1 TOP -20 70 °C
Storage temperature *2 TSTO -30 80 °C
Operating humidity *3 HOP 10 *4 %RH
Storage humidity *3 HSTO 10 *4 %RH
Vibration - *5 *5 -
Shock - *6 *6 -
*1 Operating temperature means a temperature which operation shall be guaranteed. Since display
performance is evaluated at 25°C, another temperature range should be confirmed.
*2 Temp. = -30°C＜48h , Temp. = 80°C＜168h
Store LCD panels at normal temperature/humidity. Keep them free from vibration and shock.
An LCD panel that is kept at a low or a high temperature for a long time can be defective due to
other conditions, even if the low or high temperature satisfies the standard.
(Please refer to “Precautions for Use” for details.)
*3 Non-condensing
*4 Temp.≦40°C, 85%RH Max.
Temp.＞40°C, Absolute humidity shall be less than 85%RH at 40°C.
*5
Frequency 10〜55 Hz
Vibration width 0.15mm
Acceleration value
(0.3〜9 m/s2)
Interval 10-55-10 Hz １minutes
2 hours in each direction X, Y, Z (6 hours total)
EIAJ ED-2531
*6 Acceleration: 490 m/s2, Pulse width: 11 ms
3 times in each direction: ±X, ±Y, ±Z
EIAJ ED-2531
Spec No.
TQ3C-8EAS0-E1DAQ05-00
Part No.
KG047QVLAA-G020
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M022070
5. Electrical characteristics
5-1. VDD = 5.0V VDD = +5.0V±5%, Temp. = -20〜70°C
Item Symbol Condition Min. Typ. Max. Unit
Supply voltage for logic VDD - 4.75 5.00 5.25 V
-20°C〜 0.80 - - V
0〜50°C *3 1.45 1.95 2.45 V
Supply voltage for LCD driving
*1, *2
VCONT= VOP
〜70°C - - 2.80 V
"High" level 0.8VDD - VDD V
Input signal voltage
(FRM,LOAD,CP,DISP,D0〜D3) VIN "Low" level 0 - 0.2VDD V
Input current IIN Input signal -100 - 100 μA
Rush current for logic IRUSH When LCD
turn on. 3.0A (Peak) × 1ms
Clock frequency fCP - - - 10.00 MHz
Frame frequency *4 fFRM - 70 75 80 Hz
Current consumption for logic IDD - 16 21 mA
Power consumption PDISP *5 - 80 105 mW
*1 The supply voltage (VCONT = VOP) to drive the display has individual difference. Please adjust the
contrast to be most suitable.
*2 Frame frequency : fFRM = 75Hz
*3 The LCD module has a temperature compensation circuit.
*4 In consideration of display quality, it is recommended that frame frequency be set in the range of
70-80Hz. When you have to use higher frame and clock frequencies, confirm the LCD’s performance
and quality prior to finalizing the frequency value. Generally, as frame and clock frequencies become
higher current consumption increases and display quality will degrade.
*5 Display pattern:
V
DD = 5.0V, VCONT = VOP, fFRM = 75Hz, fCP = 1.44MHz, Temp. = 25°C
1 2 3 4 5 6・・・・・・・・・・・・・・ 320(dot)
1
2
3
:
:
:
239
240
(dot)
■■■■■■■■■■■■■■■■■■■■
□□□□□□□□□□□□□□□□□□□□
■■■■■■■■■■■■■■■■■■■■
□□□□□□□□□□□□□□□□□□□□
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□□□□□□□□□□□□□□□□□□□□
■■■■■■■■■■■■■■■■■■■■
□□□□□□□□□□□□□□□□□□□□
Spec No.
TQ3C-8EAS0-E1DAQ05-00
Part No.
KG047QVLAA-G020
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M022070
5-2. VDD = 3.3V
VDD =+3.3V±0.3V, Temp. = -20〜70°C
Item Symbol Condition Min. Typ. Max. Unit
Supply voltage for logic VDD - 3.0 3.3 3.6 V
-20°C〜 0.80 - - V
0〜50°C *3 1.45 1.95 2.45 V
Supply voltage for LCD driving
*1, *2
VCONT= VOP
〜70°C - - 2.80 V
"High" level 0.8VDD - VDD V
Input signal voltage
(FRM,LOAD,CP,DISP,D0〜D3) VIN
"Low" level 0 - 0.2VDD V
Input current IIN Input signal -100 - 100 μA
Rush current for logic IRUSH When LCD
turn on. 3.0A (Peak) × 1ms
Clock frequency fCP - - - 10.00 MHz
Frame frequency *4 fFRM - 70 75 80 Hz
Current consumption for logic IDD - 23 30 mA
Power consumption PDISP *5 - 76 100 mW
*1 The supply voltage (VCONT = VOP) to drive the display has individual difference. Please adjust the
contrast to be most suitable.
*2 Frame frequency : fFRM = 75Hz
*3 The LCD module has a temperature compensation circuit.
*4 In consideration of display quality, it is recommended that frame frequency be set in the range of
70-80Hz. When you have to use higher frame and clock frequencies, confirm the LCD’s performance
and quality prior to finalizing the frequency value. Generally, as frame and clock frequencies become
higher current consumption increases and display quality will degrade.
*5 Display pattern:
V
DD = 3.3V, VCONT = VOP, fFRM = 75Hz, fCP = 1.44MHz, Temp. = 25°C
1 2 3 4 5 6・・・・・・・・・・・・・・ 320(dot)
1
2
3
:
:
:
239
240
(dot)
■■■■■■■■■■■■■■■■■■■■
□□□□□□□□□□□□□□□□□□□□
■■■■■■■■■■■■■■■■■■■■
□□□□□□□□□□□□□□□□□□□□
■■■■■■■■■■■■■■■■■■■■
□□□□□□□□□□□□□□□□□□□□
■■■■■■■■■■■■■■■■■■■■
□□□□□□□□□□□□□□□□□□□□
Spec No.
TQ3C-8EAS0-E1DAQ05-00
Part No.
KG047QVLAA-G020
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M022070
6. Optical characteristics
Measuring spot =φ6.0mm, Temp. = 25°C
Item Symbol Condition Min. Typ. Max. Unit
Rise τ r θ=φ=0° - 380 480 ms
Response time
Down τ d θ=φ=0° - 120 220 ms
θUPPER - 20 -
θLOWER - 40 -
deg.
φLEFT - 45 -
Viewing angle range
φRIGHT
CR≧2
- 45 -
deg.
Contrast ratio CR θ=φ=0° 2 4 - -
Brightness L IF=10mA/Line 210 300 - cd/m2
x 0.29 0.34 0.39
White y θ=φ=0°
0.30 0.35 0.40
x 0.15 0.20 0.25
Chromaticity
coordinates
Blue y θ=φ=0°
0.07 0.12 0.17
-
Optimum contrast is obtained by adjusting the LCD driving voltage (VOP) while at the viewing
angle of θ=φ=0°.
6-1. Definition of contrast ratio
CR(Contrast ratio) ＝
Brightness with all pixels "White"
Brightness with all pixels "Blue"
6-2. Definition of VOP
Contrast
CRMax.
VOP VCONT
Spec No.
TQ3C-8EAS0-E1DAQ05-00
Part No.
KG047QVLAA-G020
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M022070
6-3. Definition of response time
6-4. Definition of viewing angle
6-5. Brightness measuring points
1) Rating is defined on the average in the viewing area.
2) Measured 30 minutes after the LED is powered on. (Ambient temp. = 25°C)
3) Backlight : IF=10mA / 1 LED line
‑x +x
‑y
+y
φ=0° θLOWER
θUPPER
‑x +x
‑y
θ=0°
φRIGHT
φLEFT
θdirection φdirection
+y
(dot)
(dot)
80 160 240
60
120
180
1
2
3
4
5
Brightness
100%
90%
τr
90%
10%
τd
Blue White Blue
Spec No.
TQ3C-8EAS0-E1DAQ05-00
Part No.
KG047QVLAA-G020
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M022070
7
．
Circuit block diagram
7-1. Power supply
D0〜D3
CP
FRM
LOAD
VSS
VDD
DISP
VCON
T
VSS=V1
DF
DISP
To SEG IC
VL
VH
VM
V0
To SEG IC
320 × 240LCD
1 / 240 duty
SEG Driver IC
COM Driver IC Randomizing
Circuit
DC/DC
Converter
V
O
P
+3.3V or +5.0V
KG047
Q
VL
A
V
SS
V
CO
NT
V
DD
+0.8V
〜
2.8V
Spec No.
TQ3C-8EAS0-E1DAQ05-00
Part No.
KG047QVLAA-G020
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M022070
8. Interface signals
8-1. Pin assignment of LCD panel
No. Symbol Description Level
1 FRM Synchronous signal for driving scanning line H
2 LOAD Data signal latch clock H → L
3 CP Data signal shift clock H → L
4 DISP Display control signal H(ON),L(OFF)
5 VDD Power supply for logic -
6 VSS GND -
7 VCONT LCD adjust voltage -
8 NC
9 NC
10 NC
11 NC
No connect -
12 D3
13 D2
14 D1
15 D0
Display data H(ON),L(OFF)
16 VDD
17 VDD Power supply for logic -
18 VSS
19 VSS
20 VSS
GND -
LCD connector ： 08-6210-020-340-800+ (ELCO)
Recommended matching FFC or FPC ： 0.5mm pitch
8-2. Pin assignment of LED
No. Symbol Description
1 AN1 Anode 1
2 CA1 Cathode 1
3 CA2 Cathode 2
4 AN2 Anode 2
LCD side connector ： 1.0mm pitch
Spec No.
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Part No.
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M022070
9. Interface timing chart
* The cycle of the LOAD signal should be stable and continuously applied without interruption.
* The above-mentioned timing chart is a reference to set up a LCD module, not an electrical rating.
CP
LOAD
Y317 Y1 Y5 Y1Y317
Y2
Y319 Y3 Y7 Y3
Y318 Y2 Y6 Y318
Y4 Y8 Y320
Y319
Y4
X240 X1X1 X2
D3
D2
D1
D0 Y320
LOAD
CP × 320 / 4pulse
D0～D3
FRM
FRM
Spec No.
TQ3C-8EAS0-E1DAQ05-00
Part No.
KG047QVLAA-G020
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M022070
10. Input timing characteristics
trCP
LOAD
FRM
1st
CP
DATA
CP
tf
tWLPL
tFS tFH
1st
tWLPH
tLDCR
tLCL
tCDLD
last
tr
tCCLtWCLH tWCLL
tDS tDH
tfCP
Spec No.
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Part No.
KG047QVLAA-G020
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M022070
10-1. Switching characteristics (VDD = 5.0V)
Input characteristics ： V
DD = +5.0V ± 5%, Temp. = -20〜70°C
Item Symbol Min. Max. Unit
CP cycle *1 tCCL 100 - ns
CP ”H” pulse width tWCLH 30 - ns
CP ”L” pulse width tWCLL 30 - ns
CP rise up time trCP - 15 ns
CP fall down time tfCP - 15 ns
Data set up time tDS 25 - ns
Data hold time tDH 25 - ns
LOAD ”H” pulse width tWLPH 40 - ns
LOAD ”L” pulse width tWLPL 400 - ns
LOAD cycle *2 tLCL 500 - ns
CP → LOAD delay time tCDLD 60 - ns
LOAD → CP delay time tLDCR 60 - ns
Input signal rise up time tr - 20 ns
Input signal fall down time tf - 20 ns
FRM data set up time tFS 120 - ns
FRM data hold time tFH 30 - ns
*1 CP cycle is adjusted so that FRM signal is 75Hz.
*2 LOAD cycle is constant.
10-2. Switching characteristics (VDD = 3.3V)
Input characteristics ： V
DD = +3.3V ± 0.3V, Temp. = -20〜70°C
Item Symbol Min. Max. Unit
CP cycle *1 tCCL 100 - ns
CP ”H” pulse width tWCLH 40 - ns
CP ”L” pulse width tWCLL 40 - ns
CP rise up time trCP - 20 ns
CP fall down time tfCP - 20 ns
Data set up time tDS 35 - ns
Data hold time tDH 35 - ns
LOAD ”H” pulse width tWLPH 50 - ns
LOAD ”L” pulse width tWLPL 400 - ns
LOAD cycle *2 tLCL 500 - ns
CP → LOAD delay time tCDLD 60 - ns
LOAD → CP delay time tLDCR 80 - ns
Input signal rise up time tr - 20 ns
Input signal fall down time tf - 20 ns
FRM data set up time tFS 120 - ns
FRM data hold time tFH 30 - ns
*1 CP cycle is adjusted so that FRM signal is 75Hz.
*2 LOAD cycle is constant.
Spec No.
TQ3C-8EAS0-E1DAQ05-00
Part No.
KG047QVLAA-G020
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M022070
11. Supply voltage sequence condition
In normal operation, logic within the LCD module reverses the polarity of the drive voltage every
few lines to prevent DC damage to the liquid crystal material. But when a voltage is present on
VCONT outside of the time when the VDD logic voltage is stable, a drive voltage is applied to the liquid
crystal material without the polarity reversals. This sometimes result in a deterioration of display
quality and a reduction in life time.
0ms Min.
0ms Min. 0ms Min.
0ms Min.
V
DD
Input signal
V
CONT
DISP
* Input signal: FRM, LOAD, CP, D0〜D3
* The above sequence should be designed as to maintain each normal voltage when the liquid crystal
module load is applied to your system.
* Control the supply voltage sequence to not float any signal line when the LCD panel is being driven.
Spec No.
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Part No.
KG047QVLAA-G020
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M022070
12. Backlight characteristics
LED ratings
Item Symbol Min. Typ. Max. Unit Note
Forward current *1 IF - 10 - mA
Ta=-20〜70°C
- 24.1 27.7 V IF=10mA, Ta=-20℃
- 23.7 27.2 V IF=10mA, Ta=25℃
Forward voltage *1 VF
- 23.1 26.7 V IF=10mA, Ta=70℃
Operating life time *2, *3 T - 40,000 - h IF=10mA, Ta=25℃
*1 For each “AN1-CA1”, “AN2-CA2”
*2 When brightness decrease 50% of initial brightness.
*3 Life time is estimated data.
* An input current below 5.0mA may reduce the brightness uniformity of the LED backlight.
This is because the amount of light from each LED chip is different. Therefore, please
evaluate carefully before finalizing the input current.
Spec No.
TQ3C-8EAS0-E1DAQ05-00
Part No.
KG047QVLAA-G020
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M022070
13. Lot number identification
The lot number shall be indicated on the back of the backlight case of each LCD.
KG047QVLAA-G020 - □□ - □□ - □ MADE IN □□□□□
↓ ↓ ↓↓ ↓
1 2 3
4 5
Year 2008 2009 2010 2011 2012 2013
Code 8 9 0 1 2 3
Month Jan. Feb. Mar. Apr. May Jun.
Code 1 2 3 4 5 6
Month Jul. Aug. Sep. Oct. Nov. Dec.
Code 7 8 9 X Y Z
14. Warranty
14-1. Incoming inspection
Please inspect the LCD within one month after your receipt.
14-2. Production warranty
Kyocera warrants its LCD’s for a period of 12 months from the ship date. Kyocera shall, by mutual
agreement, replace or re-work defective LCD’s that are shown to be Kyocera’s responsibility.
No1. - No5. above indicate
1. Year code
2. Month code
3. Date
4. Version Number
5. Country of origin (Japan or China)
Spec No.
TQ3C-8EAS0-E1DAQ05-00
Part No.
KG047QVLAA-G020
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M022070
15. Precautions for use
15-1. Installation of the LCD
1) The LCD module has a grounding hole. Please ground the module to prevent noise and to stabilize
its performance as circumstances demand.
2) A transparent protection plate shall be added to protect the LCD and its polarizer.
3) The LCD shall be installed so that there is no pressure on the LSI chips.
4) The LCD shall be installed flat, without twisting or bending.
5) Please design the housing window so that its edges are between the active area and the effective
area of the LCD screen.
6) A transparent protection sheet is attached to the polarizer. Please remove the protection film slowly
before use, paying attention to static electricity.
15-2. Static electricity
1) Since CMOS ICs are mounted directly onto the LCD glass, protection from static electricity is
required.
2) Workers should use body grounding. Operator should wear ground straps.
15-3. LCD operation
1) The LCD shall be operated within the limits specified. Operation at values outside of these limits
may shorten life, and/or harm display images.
2) Adjust the "Supply voltage for LCD driving (VCONT)" to obtain optimum viewing angle and contrast
ratio.
15-4. Storage
1) The LCD shall be stored within the temperature and humidity limits specified.
Store in a dark area, and protect the LCD from direct sunlight or fluorescent light.
2) Always store the LCD so that it is free from external pressure onto it.
15-5. Usage
1) DO NOT store in a high humidity environment for extended periods. Polarizer degradation bubbles,
and/or peeling off of the polarizer may result.
2) The front polarizer is easily scratched or damaged. Prevent touching it with any hard material, and
from being pushed or rubbed.
3) The LCD screen may be cleaned by wiping the screen surface with a soft cloth or cotton pad using a
little Ethanol.
4) Water may cause damage or discoloration of the polarizer. Clean condensation or moisture from any
source immediately.
5) Always keep the LCD free from condensation during testing. Condensation may permanently spot
or stain the polarizer.
6) Do not pull the LED lead wires and do not bend the root of the wires. Housing should be designed
to protect LED lead wires from external stress.
7) Do not disassemble LCD module because it will result in damage.
8) This Kyocera LCD module has been specifically designed for use in general electronic devices, but
not for use in a special environment such as usage in an active gas.Hence, when the LCD is
supposed to be used in a special environment, evaluate the LCD thoroughly beforehand and do not
expose the LCD to chemicals such as an active gas.
9) Please do not use solid-base image pattern for long hours because a temporary afterimage may
appear. We recommend using screen saver etc. in cases where a solid-base image pattern must
be used.
10) Liquid crystal may leak when the module is broken. Be careful not to let the fluid go into your eyes
and mouth. In the case the fluid touches your body; rinse it off right away with water and soap.
Spec No.
TQ3C-8EAS0-E1DAQ05-00
Part No.
KG047QVLAA-G020
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M022070
16. Reliability test data
Test item Test condition Test time Judgement
High temp.
atmosphere 80°C 240h
Display function
Display quality
Current consumption
: No defect
: No defect
: No defect
Low temp.
atmosphere -30°C 240h
Display function
Display quality
Current consumption
: No defect
: No defect
: No defect
High temp.
humidity
atmosphere
40°C 90% RH 240h
Display function
Display quality
Current consumption
: No defect
: No defect
: No defect
Temp. cycle
-30°C
R.T.
80°C
0.5h
0.5h
0.5h
10cycles
Display function
Display quality
Current consumption
: No defect
: No defect
: No defect
High temp.
operation 70°C 500h
Display function
Display quality
Current consumption
: No defect
: No defect
: No defect
* Each test item uses a test LCD only once. The tested LCD is not used in any other tests.
* The LCD is tested in circumstances in which there is no condensation.
* The reliability test is not an out-going inspection.
* The result of the reliability test is for your reference purpose only.
The reliability test is conducted only to examine the LCD's capability.
Spec No. TQ3C-8EAS0-E2DAQ05-00
Date August 10, 2008
KYOCERA INSPECTION STANDARD
TYPE : KG047QVLAA-G020
KYOCERA CORPORATION
KAGOSHIMA HAYATO PLANT
LCD DIVISION
Designed by : Engineering dept. Confirmed by : QA dept.
Original
Issue Date Prepared Checked
Approved
Checked
Approved
August 10, 2008
Spec No.
TQ3C-8EAS0-E2DAQ05-00
Part No.
KG047QVLAA-G020
Page
-
Revision record
Designed by : Engineering dept. Confirmed by : QA dept.
Date Prepared Checked Approved Checked Approved
Rev.No. Date Page Descriptions
Spec No.
TQ3C-8EAS0-E2DAQ05 -00
Part No.
KG047QVLAA-G020
Page
1
Visuals specification
1) Note
Item Note
1.When defects specified in this Inspection Standards are
inspected, operating voltage (VOP) shall be set at the level
where optimized contrast is available. Display quality is
applied up to effective viewing area. (Bi-level INSPECTION)
2.This inspection standard about the image quality shall be
applied to any defect within the effective viewing area and
shall not be applicable to outside of the area.
3.Should any defects which are not specified in this standard
happen, additional standard shall be determined by mutual
agreement between customer and Kyocera.
General
4.Inspection conditions
Luminance
Inspection distance
Temperature
Direction
: 500 Lux minimum.
: 300 mm(from the sample)
: 25±5°C
: right above
Pinhole, Bright spot
Black spot, Scratch
Foreign particle
The color of a small area is
different from the remainder.
The phenomenon does not
change with voltage.
Contrast variation The color of a small area is
different from the remainder.
The phenomenon change with
voltage.
Definition of inspection
item
Polarizer
(Scratch, Bubble, Dent)
Scratch, Bubble and Dent in the
polarizer which can beobserved
in on / off state.
Spec No.
TQ3C-8EAS0-E2DAQ05 -00
Part No.
KG047QVLAA-G020
Page
2
2)Standard
Inspection item Judgement standard
Pinhole, Bright spot,
Black spot, Foreign particle
d = ( a + b ) / 2
Category Size(mm) Acceptable number
A 0.2 ＜ d ≦ 0.2 Neglected
B 0.2 ＜ d ≦ 0.3 5
C 0.3 ＜ d ≦ 0.5 3
D 0.5 ＜ d ≦ 0.4 0
Scratch, Foreign particle
Width (mm) Length (mm) Acceptable
number
A 0.1 ＜ W ≦0.03 - Neglected
B 2.0＜ L ≦2.0 Neglected
C 2.0＜ L ≦4.0 3
D
0.03＜ W ≦0.10
4.0＜ L ≦ . 0
E 0.10＜ W ≦0 .3 - According to
‘Circular’
Contrast variation
d = ( a + b ) / 2
Category Size (mm) Acceptable number
A 0.2 ＜ d ≦ 0.5 Neglected
B 0.5 ＜ d ≦ 0.7 3
C 0.7 ＜ d ≦ 0.4 0
a
b
a
b
L
W
Spec No.
TQ3C-8EAS0-E2DAQ05 -00
Part No.
KG047QVLAA-G020
Page
3
Inspection item Judgement standard
(1) Scratch
Width (mm) Length (mm) Acceptable No.
A 01 ＜ W ≦0.1 - Neglected
B 2.0＜ L ≦5.0 Neglected
C
0.1＜ W ≦0.3 5.0＜ L ≦ .3 0
D 0.3＜ W ≦0 3 - 0
Polarizer
(Scratch, Bubble, Dent)
(2) Bubble (dent)
d = ( a + b ) / 2
Category Size (mm) Acceptable number
A 01 ＜ d ≦ 0.2 Neglected
B 0.2 ＜ d ≦ 0.3 5
C 0.3 ＜ d ≦ 0.5 3
D 0.5 ＜ d ≦ 0 3 0
L
W
a
b
