LMT090DICFWD-2
LCD Module User Manual
Prepared by:
Checked by:
Approved by:
Chenzhonghua
Date: 2023-11-24
Date:
Date:
Rev. Descriptions
Edit
Release Date
0.1
Preliminary release
chenzhonghua 2023-11-24
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Table of Content
1. Applications....................................................................................................................................3
2. General Specification....................................................................................................................3
3. Block Diagram................................................................................................................................3
4. Terminal Function..........................................................................................................................4
4.1 TFT Input Terminal.....................................................................................................................................................4
5. Absolute Maximum Ratings......................................................................................................... 5
6. Electrical Characteristics..............................................................................................................5
6.1 DC Characteristics..................................................................................................................................................... 5
6.2 Current Consumption................................................................................................................................................. 5
6.3 LED Backlight Circuit Characteristics.........................................................................................................................5
6.4 Power Sequence........................................................................................................................................................6
7. AC Characteristics.........................................................................................................................8
7.1 Timing Characteristics................................................................................................................................................8
7.2 Input Clock and Data Timing Diagram....................................................................................................................... 8
7.3 Timing.........................................................................................................................................................................9
7.4 Data Input Format.................................................................................................................................................... 10
7.5 Optical Characteristics............................................................................................................................................. 11
8. LCD Module Design and Handling Precautions.......................................................................12
9. CTP Mounting Instructions.........................................................................................................13
10. RTP Mounting Instructions.......................................................................................................14
11. Warranty......................................................................................................................................15
12. TFT QA Standard....................................................................................................................... 16
12.1 INSPECTION CONDITION 检验条件 .....................................................................................................................16
12.2 Display Pattern 显示缺陷 ........................................................................................................................................16
12.3 Quality Level and Sampling 抽样方法 .................................................................................................................... 17
12.4 Handling Precaution 使用注意事项 .........................................................................................................................17
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1. Applications
This Module is designed for portable DVD, GPS car TV & PMP(portable multimedia player)
application which require high quality flat panel displays. It is also a good substitute for many
outmoded CSTN module in the industrial application.
This product is composed of a TFT-LCD panel, driver ICs, FPC and LED backlight unit.
2. General Specification
Signal Interface :
Digital 24-bits RGB
Display Technology :
a-Si TFT active matrix
Display Mode :
Transmissive / Normal White
Screen Size(Diagonal) :
9.0”
Outline Dimension :
211.1 x 126.5 x 5.9 (mm)
(see attached drawing for details)
Active Area :
198.0 x 111.7 (mm)
Number of dots :
800 x 3 (RGB) x 480
Pixel Pitch :
0.0825 x 0.2327 (mm)
Pixel Configuration :
RGB Stripe
Backlight :
LED
Surface Treatment:
Anti-Glare
Viewing Direction :
6 o’clock(Gray scale Inversion) (*1)
12 o’clock (*2)
Operating Temperature :
-20 ~ +70°C
Storage Temperature :
-30 ~ +80°C
Note:
*1. For saturated color display content (eg. pure-red, pure-green, pure-blue or pure-colors-combinations).
*2. For “ color scales ” display content.
*3. Color tone may slightly change by temperature and driving condition.
3. Block Diagram
VLED+,VLED-
Backlight LED
DVDD, GND, AVDD
VGH, VGL
VOCM
9’’ TFT Panel
DCLK
DE, HS, VS
MODE
DITHB
BIST
R0~R7, G0~G7, B0~B7
Source Driver
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4. Terminal Function
4.1TFT Input Terminal
Pin No.
Pin Name
I/O
Descriptions
1
VLED+
2
VLED+
Power
Positive Backlight Power Supply
3
VLED-
4
VLED-
Power
Negative Backlight Power Supply
5
GND
Power
Power GND (0V)
6
VCOM
Input
Common voltage
7
DVDD
Power
Power for Digital Circuit
8
MODE
Input
DE/SYNC mode select (*1)
9
DE
Input
Data input enable
10
VS
Input
Vertical Sync Input
11
HS
Input
Horizontal Sync Input
12
B7
:
:
Input
8bit Data for Blue
19
B0
20
G7
:
:
Input
8bit Data for Green
27
G0
28
R7
:
:
Input
8bit Data for Red
35
R0
36
GND
Power
Power GND (0V)
37
DCLK
Input
Sample clock(*2)
38
GND
Power
Power GND (0V)
39
L/R
Input
Left / right selection (*3)
40
U/D
Input
Up/down selection (*3)
41
VGH
Power
Gate ON Voltage
42
VGL
Power
Gate OFF Voltage
43
AVDD
Power
Power for Analog Circuit
44
RESET
Input
Global reset pin (*4)
45
NC
-
No connection
46
VCOM
Input
Common Voltage
47
DITHB
Input
Dithering function (*5)
48
BIST
Input
BIST mode control signal(*6)
49
NC
-
50
NC
No connection
Note:
* 1: DE/SYNC mode select. Normally pull high.
When select DE mode, MODE=”1”, VS and HS must pull high.
When select SYNC mode, MODE= “0”, DE must be grounded.
* 2: Data shall be latched at the falling edge of DCLK.
* 3: Selection of scanning mode
Setting of scan control input
Scanning direction
U/D
L/R
GND
DVDD
Up to down, left to right
DVDD
GND
Down to up, right to left
GND
GND
Up to down, right to left
DVDD
DVDD
Down to up, left to right
*4: Global reset pin. Active low to enter reset state. Suggest to connect with an RC reset circuit for stability. Normally pull high.
*5: Dithering function enable control, normally pull high.
When DITHB=”1”,Disable internal dithering function,
When DITHB=”0”,Enable internal dithering function,
*6: BIST Mode enable control, normally pull low. Suggest connecting this pin to ground.
When BIST=”1”, enter to BIST pattern display mode.
When BIST=”0”, normally display mode.
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5. Absolute Maximum Ratings
Items
Symbol
Min.
Max.
Unit
Condition
DV DD
-0.3
5.0
V
Power voltage
AV DD
-0.5
13.5
V
V GH
13.0
19.0
V
V GL
-12.0
-2.0
V
Operating Temperature
T OP
-20
70
C
No Condensation
Storage Temperature
T ST
-30
80
C
No Condensation
Note:
*1. This rating applies to all parts of the module. And should not be exceeded.
*2. The operating temperature only guarantees operation of the circuit. The contrast, response speed,
and the other specification related to electro-optical display quality is determined at the room temperature, T OP =25.
*3. Ambient temperature when the backlight is lit (reference value)
*4. Any Stresses exceeding the Absolute Maximum Ratings may cause substantial damage to the device. Functional
operation of this device at other conditions beyond those listed in the specification is not implied and prolonged
exposure to extreme conditions may affect device reliability.
6. Electrical Characteristics
6.1 DC Characteristics
Items
Symbol
Min.
Typ.
Max.
Unit
Remark
DV DD
3.0
3.3
3.6
V
*2
Power voltage
AV DD
10.6
10.8
11
V
V GH
16.3
17.0
17.7
V
V GL
-5.7
-5.0
-4.3
V
Input signal voltage
V COM
4.1
4.6
5.1
V
Input logic high voltage
V IH
0.7DV DD
-
DV DD
V
Input logic low voltage
V IL
0
-
0.3DV DD
V
*3
Note:
*1.Be sure to apply DVDD and VGL to the LCD first, and then apply VGH.
*2: DVDD setting should match the signals output voltage (refer to Note 3) of customer’s system board.
*3: DCLK,HS,VS,RESET,U/D, L/R,DE,R0~R7,G0~G7,B0~B7,MODE,DITHB.
6.2 Current Consumption
Items
Symbol
Min.
Typ.
Max.
Unit
Remark
I GH
0.05
0.3
1.0
mA
V GH = 17.0V
I GL
0.05
0.3
1.0
mA
V GL = -5.0V
Current for Driver
IDV DD
10
15
20
mA
DV DD =3.3V
IAV DD
12
22
32
mA
AV DD =10.8V
@Black Pattern
6.3 LED Backlight Circuit Characteristics
Top=25 ℃
Items
Symbol
MIN.
TYP.
MAX.
Unit
Note
Forward Voltage
Vf BLA
8.4
9.3
10.2
V
Forward Current
If BLA
198
220.0
242
mA
LED life time
-
20000
-
-
Hr
Note 2
Cautions:
Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.
Note 2: The “LED life time” is defined as the module brightness decrease to 50% original brightness at Ta=25 ℃ and
IL =220mA. The LED lifetime could be decreased if operating IL is lager than 220 mA.
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6.4 Power Sequence
6.4.1 Power on:
DV DD →VGL→AVDD→VGH→Data→B/L
SPEC
Symbol
Unit
Min.
Typ.
Max.
t1
0.5
5
20
ms
t2
1
1
1.5
ms
t3
10
15
20
ms
t4
20
22
24
ms
t5
1
2
3
ms
t6
5
6
7
ms
t7
1.5
2
4
ms
t8
10
12
15
ms
t9
120
150
200
ms
t10
180
190
200
ms
Note: Data include R0~R7, B0~B7, GO~G7, U/D, L/R, DCLK, HS, VS, DE.
Note: Be sure to apply DVDD and VGL to the LCD first, and then apply VGH
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6.5.2Power off:
B/L→Data→VGL→AVDD→VGH→DVDD
SPEC
Symbol
Unit
Min.
Typ.
Max.
t1
180
190
200
ms
t2
10
15
20
ms
t3
5
6
7
ms
t4
10
12
15
ms
t5
20
22
24
ms
t6
1
1.5
3
ms
Note : Data include R0~R7,B0~B7,G0~G7,U/D,L/R,DCLK,HS,VS,DE.
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7. AC Characteristics
7.1 Timing Characteristics
Item
Symbol
MIN.
TYP.
MAX.
Unit Remark
HS setup time
Thst
8
10
12
ns
HS hold time
Thhd
8
10
12
ns
VS setup time
Tvst
8
10
12
ns
VS hold time
Tvhd
8
10
12
ns
Data setup time
Tdsu
8
10
12
ns
R[7:0],G[7:0],
B[7:0] to DCLK
Data hole time
Tdhd
8
10
12
ns
R[7:0],G[7:0],
B[7:0] to DCLK
DE setup time
Tesu
8
10
12
ns
DE hole time
Tehd
8
10
12
ns
DV DD Power On Slew rate
TPOR
0.5
5
20
ms
From 0 to 90%
DV DD
RESET pulse width
TRST
1
2
5
ms
DCLK cycle time
Tcph
20
30
33
ns
DCLK pulse duty
Tcwh
40
50
60
%
Note: For the details of the timing, please see the Driver IC data sheet.
7.2 Input Clock and Data Timing Diagram
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7.3 Timing
Item
Symbol
MIN.
TYP.
MAX.
Unit
Remark
Horizontal Display Area
thd
-
800
-
DCLK
DCLK Frequency
fclk
26.4
33.3
46.8
MHz
One Horizontal Line
th
862
1056
1200
DCLK
HS pulse width
thpw
1
6
40
DCLK
HS Blanking
thb
46
46
46
DCLK
HS Front Porch
thfp
16
210
354
DCLK
Item
Symbol
MIN.
TYP.
MAX.
Unit
Remark
Vertical Display Area
tvd
-
480
-
TH
VS period time
tv
510
525
650
TH
VS pulse width
tvpw
1
3
20
TH
VS Blanking
tvb
23
23
23
TH
VS Front Porch
tvfp
7
22
147
TH
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7.4 Data Input Format
Figure 6-2-1 Horizontal input timing diagram.
Figure 6-2-2 Vertical input timing diagram.
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7.5 Optical Characteristics
Test Conditions:
1. VCC=3.3V, Vf BLA =9.6V , the ambient temperature is 25 ℃ .
2. Exclude Touch Panel.
Item
Symbol
Condition
MIN.
TYP.
MAX.
UNIT
Note.
θ L
9 o’clock
60
70
-
Viewing angle
θ R
3 o’clock
60
70
-
(CR≥10)
degree
*2
θ T
12 o’clock
40
50
-
θ B
6 o’clock
60
70
-
T f
-
10
20
msec
Response Time
*3
T r
-
15
30
msec
Contrast ratio
CR
400
500
-
-
W X
Normal
0.26
0.31
0.36
-
*1
Color chromaticlty
θ=0 o
W Y
0.28
0.33
0.38
-
Luminance
L
250
300
-
cd/m 2
*4
Luminance uniformity
Y U
70
75
-
%
*4
Note:
*1. Definition of Contrast Ratio
The contrast ratio could be calculate by the following expression:
Contrast Ratio (CR) = Luminanc with all pixels white / Luminance with all pixels black
*2 Definition of Viewing Angle
*3 Definition of response time
*4 Definition of Luminance Uniformity
Luminance uniformity (Lu)=
Min. Luminance form pt1~pt9 / Max Luminance form Pt1~pt9
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8. LCD Module Design and
8. 液晶显示模块设计和使用须知
Handling Precautions
- Please ensure V0, VCOM is adjustable, to enable LCD - 请注意 V0, VCOM 的设定 , 以确保液晶显示模块在不
module get the best contrast ratio under different
同的使用温度下以及在不同的视角和位置观察模块显
temperatures, view angles and positions.
示，均能达到最佳对比度，请务必将应用电路上设置
为对比度可调。
- Normally display quality should be judged under the - 请注意液晶显示模块的显示品质判定是指在正常对比
best contrast ratio within viewable area. Unexpected
度下以及视窗 (V.A) 范围内进行的，非正常对比度下液
display pattern may com out under abnormal contrast
晶可能会出现非预期的显示不良，应注意区分。
ratio.
- Never operate the LCD module exceed the absolute - 请勿在最大额定值以外使用液晶显示模块。
maximum ratings.
- Never apply signal to the LCD module without power - 请勿在没有接通电源的条件下，给液晶显示模块输送
supply.
信号。
- Keep signal line as short as possible to reduce external - 请尽可能缩短信号线的连接，以避免对液晶显示模块
noise interference.
的信号干扰。
- IC chip (e.g. TAB or COG) is sensitive to light. Strong - 集成电路因 IC 芯片 ( 如 TAB 或 COG) 对紫外线极为敏
light might cause malfunction. Light sealing structure
感，强光环境下可能会引起液晶显示模块功能失效，
casing is recommended.
故应采用不透光的外壳。
- Make sure there is enough space (with cushion) - 请在液晶显示模块与外壳之间保留足够的空间 ( 可使用
between case and LCD panel, to prevent external force
衬垫 ) ，以缓冲外力对液晶显示模块的损坏或因受力不
passed on to the panel; otherwise that may cause
均而产生的显示不匀等异常现象。
damage to the LCD and degrade its display result.
- Avoid showing a display pattern on screen for a long - 避免液晶显示屏在某一画面下长时间点亮，否则有出
time (continuous ON segment).
现残影的风险；请通过软件每隔一段时间改变一次画
面。
- LCD module reliability may be reduced by temperature - 液晶显示模块的可靠性可能因温度冲击而降低。
shock.
- When storing and operating LCD module, avoids - 请勿在阳光直射、高湿、高温或低温下储存和使用液
exposure to direct sunlight, high humidity, high or low
晶显示模块，这将造成液晶显示模块的损坏或失效。
temperature. They may damage or degrade the LCD
module.
- 请勿在极限环境 ( 最大 / 最小存储 / 工作温度 ) 下使用或放
- Never leave LCD module in extreme condition
置液晶显示模块超过 48 小时以上。
(max./min storage/operate temperature) for more than
48hr.
- Recommend LCD module storage conditions is - 液晶显示模块建议存储条件为 : 0 C~40 C <80%RH 。
0 C~40 C <80%RH.
- LCD module should be stored in the room without acid, - 请勿让液晶显示模块存储于带有 酸性 , 碱性 , 有害气体
alkali and harmful gas.
环境之中。
- Avoid dropping & violent shocking during - 在运输过程中 , 请勿让液晶显示模块跌落与猛烈震动 ,
transportation, and no excessive pressure press,
同时避免 异常挤压 , 高湿度 , 与阳光照射 .
moisture and sunlight.
- LCD module can be easily damaged by static - 液晶显示模块极易受静电损坏，请务必保证液晶显示
electricity. Please maintain an optimum anti-static
模块在防静电的工作环境中使用或保存。 ( 如 : 烙铁正
working environment to protect the LCD module. (eg.
确接地 , 等 )
ground the soldering irons properly)
- Be sure to ground the body when handling LCD - 拿取液晶显示模块时需注意操作人员的接地情况。
module.
- Only hold LCD module by its sides. Never hold LCD - 请手持液晶显示模块的边沿取放模块，防止热压纸或
module by applying force on the heat seal or TAB.
TAB 部位受力。
- When soldering, control the temperature and duration - 焊接液晶模块时，请注意控制烙铁的温度、焊接时
avoid damaging the backlight guide or diffuser which
间，以免烫坏导光板或偏光片，导致显示不匀等不良
might degrade the display result such as uneven
现象发生。
display.
- Never let LCD module contact with corrosive liquids, - 请勿使用洗板水等腐蚀性液体接触液晶模块，以免腐
which might cause damage to the backlight guide or
蚀导光板或模块电路。
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the electric circuit of LCD module.
- Only clean LCD with a soft dry cloth, Isopropyl Alcohol - 仅可使用柔软的干布 , 异丙醇或乙醇清洁液晶屏表面，
or Ethyl Alcohol. Other solvents (e.g. water) may
其他任何溶剂 ( 如 : 水 ) 都有可能损坏液晶模块。
damage the LCD.
- Never add force to components of LCD module. It may - 请勿挤压液晶显示模块上的元器件，以避免产生潜在
cause invisible damage or degrade the module's
的损坏或失效而影响产品可靠性。
reliability.
- When mounting LCD module, please make sure it is - 装配液晶显示模块时，请务必注意避免液晶显示模块
free from twisting, warping and bending.
的扭曲或变形。
- Do not add excessive force on surface of LCD, which - 请勿挤压液晶显示屏表面，这将导致显示颜色的异
may cause the display color change abnormally.
常。
- LCD panel is made with glass. Any mechanical shock - 液晶屏由玻璃制作而成，任何机械碰撞 ( 如从高处跌落 )
(e.g. dropping from high place) will damage the LCD
均有可能损坏液晶显示模块。
module.
- Protective film is attached on LCD screen. Be careful - 液晶屏表面带有保护膜 , 揭除保护膜时需要注意可能产
when peeling off this protective film, since static
生的静电。
electricity may be generated.
- Polarizer on LCD gets scratched easily. If possible, do - 因液晶显示屏表面的偏光片极易划伤，安装完成之前
not remove LCD protective film until the last step of
请尽量不要揭下保护膜。
installation.
- When peeling off protective film from LCD, static
charge may cause abnormal display pattern. The
symptom is normal, and it will turn back to normal in a - 请缓慢揭除保护膜，在此过程中液晶显示屏上可能会
short while.
产生静电线，此为正常情况，可在短时间内消失。
- LCD panel has sharp edges, please handle with care.
- Never attempt to disassemble or rework LCD module.
- 请注意避免被液晶显示屏的边缘割伤。
- If display panel is damaged and liquid crystal - 请不要试图拆卸或改造液晶显示模块。
substance leaks out, be sure not to get any in your - 当液晶显示屏出现破裂 , 内部液晶液体可能流出 ; 相关
mouth, if the substance comes into contact with your
液体不可吞吃 , 绝对不可接触嘴巴 , 如接触到皮肤或衣
skin or clothes promptly wash it off using soap and
服 , 请使用肥皂与清水彻底清洗 .
water.
9. CTP Mounting Instructions
9.1 Bezel Mounting (Figure 1)
- The bezel window should be bigger than the CTP
active area. It should be≥0.5mm each side.
9. 电容触摸屏安装指导
- Gasket should be installed between the bezel and the
CTP surface.
9.1 面框安装（附图 1 ）
The final gap should be about 0.5~1.0mm.
- 客户面框窗口应大于 CTP 动作区域，各边离动作区应
- It is recommended to provide an additional support
≥0.5mm.
bracket for backside support when necessary (e.g. slim
- 面框与 CTP 面板间应垫有胶垫，其最终间隙约为
type TFT module without mounding structure). They
0.5 ～ 1.0mm.
should only provide appropriate support and keep the
- 建议必要时在背面提供附加支架 ( 例如无安装结构的薄
module in place.
型 TFT 模块 ) ，应仅利用适当支撑以保持模块位置 .
- The mounting structure should be strong enough to
prevent external uneven force or twist act onto the
module.
- 安装结构应具有足够的强度，以防止外部不均匀力或
扭曲力作用到模块上 .
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Figure 1
9.2 Surface Mounting (Figure 2)
9.2 嵌入安装（附图 2 ）
- As the CTP assembling on the countersink area with - 客户面框应具有使用双面胶粘贴 CTP 的结构沉台面，
double side adhesive.
其粘贴面要求平整且洁净无污以保证粘贴牢靠 .
The countersink area should be flat and clean to
ensure the double side adhesive installation result.
- The Bezel is recommend to keep a gap (≥0.3mm each - 考虑到制作误差，建议面框与 CTP 盖板之间四周留有
side) around the cover lens for tolerance.
≥0.3mm 间隙 .
- It is recommended to provide an additional support - 建议必要时在背面提供垫有胶垫附加支架 ( 例如无安装
bracket with gasket for backside support when
结构的 TFT 模块 ) ，应仅利用适当支撑以保持模块位
necessary (e.g.
TFT module without mounding
置 .
structure). They should only provide appropriate
support and keep the module in place.
- 安装结构应具有足够的强度，以防止外部不均匀力或
- The mounting structure should be strong enough to
扭曲力作用到模块上。
prevent external uneven force or twist act onto the
module
Figure 2
9.3 Additional Cover Lens Mounting (Figure 3)
9.3 覆加盖板（附图 3 ）
- For the case of additional cover Lens mounting, it is - 需要覆加玻璃盖板的安装，为确保其功能，有必要查
necessary to recheck with the CTP specification about
看产品规格书中有关盖板材料和厚度的说明 .
the material and thickness to ensure the functionality.
- It should keep a 0.2~0.3mm gap between the cover - 玻璃盖板与 CTP 表面之间应留有 0.2 ～ 0.3mm 间隙 .
lens and the CTP surface..
- The cover lens window should be bigger than the - 玻璃盖板视窗应大于 CTP 动作区域，各边离动作区应
active area of the CTP.It should be≥0.5mm each side.
≥0.5mm 。
- It is recommended to provide an additional support - 建议必要时在背面提供附加支架 ( 例如无安装结构的薄
bracket for backside support when necessary (e.g. slim
型 TFT 模块 ) ，应仅利用适当支撑以保持模块位置 .
type TFT module without mounding structure). They
should only provide appropriate support and keep the
module in place.
- 安装结构应具有足够的强度，以防止外部不均匀力或
- The mounting structure should be strong enough to
扭曲力作用到模块上 .
prevent external uneven force or twist act onto the
module.
Figure 3
10. RTP Mounting Instructions
10. 电阻触摸屏安装指导
- It should bezel touching the RTP Active Area (A.A.) to
- 为避免面框直接压在动作区 (A.A.) 上造成误动作，面框
prevent abnormal touch.It should left gab
与电阻触摸屏 (RTP) 之间应留有一定的空隙
D=0.2~0.3mm in between. (Figure 4)
D=0.2~0.3mm 之间 .( 附图 4)
- Outer bezel design should take care about the area
- 设计面框时，要注意用面框保护触摸屏四周的非保证操
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outside the A.A. Those areas contain circuit wires
作区域，因为布线区域在此处形成一台阶，在此区域
which is having different thickness. Touching those
附近操作时 ITO Film 变形较大，容易导致 ITO 损坏而
areas could de-form the ITO film. As a result bezel the
降低寿命。为保护 RTP 和避免误操作，在 RTP 与面
ITO film be damaged and shorten its lifetime.
框之间垫缓冲物（ Gasket ），我们建议设计面框应覆
It is suggested to protect those areas with gasket
盖动作区的边缘，面框边缘到 V.A. 区的距离
(between the bezel and RTP).The suggested figures
B≥0.50mm; 垫圈内边缘到 V.A. 区的距离 C≥0.50mm.
are B≥0.50mm; C≥0.50mm. (Figure 4)
( 附图 4)
- The bezel side wall should keep space E= 0.2 ~ 0.3mm - 在设计面框与 RTP 组装时，应考虑到面框内侧与 RTP
from the RTP. (Figure 4)
外侧的间距 E≥0.2mm. ( 附图 4)
Figure 4
- In general design,
- 通常设计时：
RTP V.A. should be bigger than the TFT V.A.
RTP 的可视区 V.A. 应不小于 TFT 的可视区 V.A.
and RTP A.A. should be bigger than the TFT A.A.
及 RTP 的动作区 A.A. 应不小于 TFT 的动作区 A.A.
(Figure 5)
( 附图 5)
Figure 5
11. Warranty
This product has been manufactured to our company’s specifications as a part for use in your company’s general
electronic products. It is guaranteed to perform according to delivery specifications. For any other use apart from
general electronic equipment, we cannot take responsibility if the product is used in medical devices, nuclear power
control equipment, aerospace equipment, fire and security systems, or any other applications in which there is a direct
risk to human life and where extremely high levels of reliability are required. If the product is to be used in any of the
above applications, we will need to enter into a separate product liability agreement.
- We cannot accept responsibility for any defect, which may arise form additional manufacturing of the product
(including disassembly and reassembly), after product delivery.
- We cannot accept responsibility for any defect, which may arise after the application of strong external force to the
product.
- We cannot accept responsibility for any defect, which may arise due to the application of static electricity after the
product has passed our company’s acceptance inspection procedures.
- When the product is in CCFL models, CCFL service life and brightness will vary according to the performance of the
inverter used, leaks, etc. We cannot accept responsibility for product performance, reliability, or defect, which may
arise.
- We cannot accept responsibility for intellectual property of a third part, which may arise through the application of
our product to our assembly with exception to those issues relating directly to the structure or method of
manufacturing of our product.
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12. TFT QA Standard
12.1 INSPECTION CONDITION 检验条件
Unless otherwise stated ， all the inspections are carryout under the following condition
除非有特别的规定，检验条件按以下执行。
No. Items 项目
Conditions 条件
1
Lighting
Illumination: Appearance 200-500Lux
照明
环境亮度在 200~500LUX
2
Inspection Distance
30-40cm form the test sample ， within normal viewing angle
检验距离
眼睛距显示器表面 30~40cm
3
Temperature
Room Temperature (25 ºC), no condensation
环境温度
室温（ 25 度 ±5% ），无凝水
4
Viewing Angle
U/D: 15º/15º, L/R: 45º/45º
视角
前后 15 度角范围内，左右 45 度角范围内
5
Inspection Time
15 seconds
检验时间
15 秒内
6
Defect Allowance
6 max
缺陷总数
允许 6 个
12.2 Display Pattern 显示缺陷
Type 类别
No. Items /Contents 检查项目
MA
MI Standard 标准
Judgment 判定
1
No Display
√
--
Not Allowed
无显示
不允许
2
Line defect
√
--
Not Allowed
缺少行或列
不允许
3
Display abnormally
√
--
Not Allowed
错误的显示
不允许
4
Function Defective
√
--
Not Allowed
缺少功能
不允许
5
Glass Crack
√
--
Not Allowed
玻璃破碎
不允许
Spot Defect
√
(a+b)/2≤0.3
Allowed
6
Including:
允许
Black spot,
White spot
0.3<(a+b)/2≤0.5
4 max.
Foreign particle,
允许 4 个
Polarizer dirt,
Cell particle
(a+b)/2 ＞ 0.5
Not Allowed
黑点 / 白点
不允许
7
Line Defect
√
a≤0.07
Allowed
Including:
允许
Black line,
0.07<a≤0.1 and b≤5.0
4max.
White line,
允许 4 个
Scratch
Not Allowed
线
a ＞ 0.1 or b ＞ 5.0
不允许
8
Polarizer
√
(a+b)/2≤0.3
Allowed
Dent/Bubble
允许
偏光片气泡
0.3< (a+b)/2≤0.5
4 max.
允许 4 个
(a+b)/2 ≥ 0.5
Not Allowed
不允许
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9
Bright dot defect
√
Random
3 max.
允许 3 个
亮点
3 consecutive dots
Not Allowed
( 在全黑屏下多像
3 个或以上连续的点
不允许
素点）
10
Dark dot defect
√
Random
4 max.
允许 4 个
暗点
3 consecutive dots
Not Allowed
（在全红或全绿或
3 个或以上连续的点
不允许
全蓝屏下缺像素
点）
11
Bright dot defect + Dark dot defect
√
--
6 max.
亮点 + 暗点
允许 6 个
12
FPC or FFC broken
√
--
Not Allowed
FPC/FFC 损坏
不允许
13
PCBA defect
--
--
Refer to IPC-A-610
--
PCBA 缺陷
按照 IPC-A-610
12.3 Quality Level and Sampling 抽样方法
Items 项目
Standard 标准
Sampling Standard 引用标准
MIL-STD-105E
Sampling Level 抽样等级
Ⅱ
AQL level 合格判定水平
MA: AQL=0.65
MI: AQL=1.0
12.4 Handling Precaution 使用注意事项
1. Never attempt to disassemble or rework LCD module
禁止拆卸或改造显示模块
2. Never let LCD module contact with liquids
禁止液体接触
3. LCD module can be easily damaged by electrostatic charge.
Please maintain an optimum anti-static working environment.
请在静电防护环境下打开包装使用
4. LCD panel is made with glass.
Any mechanical shock (eg. Vibration, distortion, extrusion, impact ， drop) will damage the LCD module.
振动、扭曲、挤压、碰撞、跌落等会造成损失或破裂
5. Avoid showing a display pattern on screen for a long time (continuous ON segment)
长时间画面停留会造成影像残留
6. The color and evenness of the display may slightly vary with the temperature
显示颜色和显示均匀度会因外界温度而有所变化
7. Signal and Power supply excess the operation range may damage the LCD module
错误的输入电压（电流）或电信号会造成电路或元器件烧坏
8. Avoid touching the LCD surface to prevent any scratch on its surface
避免手指和其他物品接触液晶屏表面
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