LMT090DICFWD-NNA-1

LMT090DICFWD-NNA-1

LCD Module User Manual

Prepared by:

Checked by:

Approved by:

chenzhonghua

Date: 2023-06-29

Date:

Rev. Descriptions

Edit

Release Date

0.1

Preliminary release

chenzhonghua 2023-05-04

0.2

Add section 12(TFT QA Standard)

chenzhonghua 2023-06-29

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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

4.2 Touch Panel Terminal Functions................................................................................................................................ 5

5. Absolute Maximum Ratings........................................................................................................5

6. Electrical Characteristics ............................................................................................................5

6.1 DC Characteristics...................................................................................................................................................... 5

6.2 Current Consumption ..................................................................................................................................................6

6.3 LED Backlight Circuit Characteristics..........................................................................................................................6

6.4 Touch Panel Characteristics....................................................................................................................................... 6

6.5 Power Sequence.........................................................................................................................................................7

7. AC Characteristics .......................................................................................................................9

7.1 Timing Characteristics.................................................................................................................................................9

7.2 Input Clock and Data Timing Diagram........................................................................................................................ 9

7.3 Timing....................................................................................................................................................................... 10

7.4 Data Input Format..................................................................................................................................................... 11

7.5 Optical Characteristics.............................................................................................................................................. 12

8. LCD Module Design and Handling Precautions ..................................................................... 13

9. CTP Mounting Instructions .......................................................................................................14

10. RTP Mounting Instructions .....................................................................................................15

11. Warranty................................................................................................................................... 16

12. TFT QA Standard ..................................................................................................................... 17

12.1 INSPECTION CONDITION 检验条件 ......................................................................................................................17

12.2 Display Pattern 显示缺陷 .........................................................................................................................................17

12.3 Quality Level and Sampling 抽样方法 ..................................................................................................................... 18

12.4 Handling Precaution 使用注意事项 ......................................................................................................................... 18

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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 7.5 (mm)

(see attached drawing for details)

Active Area :

198.0 x 111.696 (mm)

Number of dots :

800 x 3 (RGB) x 480

Pixel Pitch :

0.0825 x 0.2327 (mm)

Pixel Configuration :

RGB Stripe

Backlight :

LED

Touch Panel Surface Treatment: Anti-Glare

Touch Panel type:

4 wire Resistive

Viewing Direction :

6 o’clock

Operating Temperature :

-20 ~ +70°C

Storage Temperature :

-30 ~ +80°C

3. Block Diagram

XL 、 YD 、 XR 、 YU

Resistance Touch Panel

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

VLED+

Power

Positive Backlight Power Supply

VLED+

VLED-

Power

Negative Backlight Power Supply

GND

Power

Power GND (0V)

VCOM

Input

Common voltage

DVDD

Power

Power for Digital Circuit

MODE

Input

DE/SYNC mode select (*1)

Input

Data input enable

Input

Vertical Sync Input

Input

Horizontal Sync Input

Input

8bit Data for Blue

Input

8bit Data for Green

Input

8bit Data for Red

GND

Power

Power GND (0V)

DCLK

Input

Sample clock(*2)

GND

Power

Power GND (0V)

L/R

Input

Left / right selection (*3)

U/D

Input

Up/down selection (*3)

VGH

Power

Gate ON Voltage

VGL

Power

Gate OFF Voltage

AVDD

Power

Power for Analog Circuit

RESET

Input

Global reset pin (*4)

No connection

VCOM

Input

Common Voltage

DITHB

Input

Dithering function (*5)

BIST

Input

BIST mode control signal(*6)

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

Up to down, right to left

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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4.2Touch Panel Terminal Functions

No. Name

I/O

Descriptions

Passive

Left Side sense Terminal

Passive

Down Side sense Terminal

Passive

Right Side sense Terminal

Passive

Up Side sense Terminal

5. Absolute Maximum Ratings

Items

Symbol

Min.

Max.

Unit

Condition

DV DD

-0.3

5.0

Power voltage

AV DD

-0.5

13.5

V GH

13.0

19.0

V GL

-12.0

-2.0

Operating Temperature

T OP

-20

No Condensation

Storage Temperature

T ST

-30

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

Power voltage

AV DD

10.6

10.8

V GH

16.3

17.0

17.7

V GL

-5.7

-5.0

-4.3

Input signal voltage

V COM

4.1

4.6

5.1

Input logic high voltage

V IH

0.7DV DD

DV DD

Input logic low voltage

V IL

0.3DV DD

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.

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6.2 Current Consumption

Items

Symbol

Min.

Typ.

Max.

Unit

Remark

I GH

0.05

0.3

1.0

V GH = 17.0V

I GL

0.05

0.3

1.0

V GL = -5.0V

Current for Driver

IDV DD

DV DD =3.3V

IAV DD

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

Forward Current

If BLA

198

220.0

242

LED life time

20000

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.

6.4 Touch Panel Characteristics

Top=25 ℃

Items

Symbol

Min.

Typ.

Max.

Unit

Applicable Pin

Operating Force

Fop

150

Operating Voltage

Vop

Life Time

1,000,000

times

X Resistance

400

1000

Ω

Y Resistance

100

400

Ω

Cautions:

Exceeding the recommended Condition could cause substantial damage to the touch panel and

shorten its life time.

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6.5 Power Sequence

6.5.1 Power on:

DV DD →VGL→AVDD→VGH→Data→B/L

SPEC

Symbol

Unit

Min.

Typ.

Max.

0.5

1.5

120

150

200

t10

180

190

200

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.

180

190

200

1.5

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

HS hold time

Thhd

VS setup time

Tvst

VS hold time

Tvhd

Data setup time

Tdsu

R[7:0],G[7:0],

B[7:0] to DCLK

Data hole time

Tdhd

R[7:0],G[7:0],

B[7:0] to DCLK

DE setup time

Tesu

DE hole time

Tehd

DV DD Power On Slew rate

TPOR

0.5

From 0 to 90%

DV DD

RESET pulse width

TRST

DCLK cycle time

Tcph

DCLK pulse duty

Tcwh

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

862

1056

1200

DCLK

HS pulse width

thpw

DCLK

HS Blanking

thb

DCLK

HS Front Porch

thfp

210

354

DCLK

Item

Symbol

MIN.

TYP.

MAX.

Unit

Remark

Vertical Display Area

tvd

480

VS period time

510

525

650

VS pulse width

tvpw

VS Blanking

tvb

VS Front Porch

tvfp

147

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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

Viewing angle

θ R

3 o’clock

(CR≥10)

degree

θ T

12 o’clock

θ B

6 o’clock

T f

msec

Response Time

T r

msec

Contrast ratio

400

500

W X

Normal

0.26

0.31

0.36

Color chromaticlty

θ=0 o

W Y

0.28

0.33

0.38

Luminance

200

250

cd/m 2

Luminance uniformity

Y U

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.

- 请勿在最大额定值以外使用液晶显示模块。

- Never operate the LCD module exceed the absolute

maximum ratings.

- 请勿在没有接通电源的条件下，给液晶显示模块输送

- Never apply signal to the LCD module without power

信号。

supply.

- 请尽可能缩短信号线的连接，以避免对液晶显示模块

的信号干扰。

- Keep signal line as short as possible to reduce external - 集成电路因 IC 芯片 ( 如 TAB 或 COG) 对紫外线极为敏

noise interference.

感，强光环境下可能会引起液晶显示模块功能失效，

- IC chip (e.g. TAB or COG) is sensitive to light. Strong

故应采用不透光的外壳。

light might cause malfunction. Light sealing structure - 请在液晶显示模块与外壳之间保留足够的空间 ( 可使用

casing is recommended.

衬垫 ) ，以缓冲外力对液晶显示模块的损坏或因受力不

均而产生的显示不匀等异常现象。

- Make sure there is enough space (with cushion)

between case and LCD panel, to prevent external force - 避免液晶显示屏在某一画面下长时间点亮，否则有出

passed on to the panel; otherwise that may cause

现残影的风险；请通过软件每隔一段时间改变一次画

damage to the LCD and degrade its display result.

面。

- Avoid showing a display pattern on screen for a long - 液晶显示模块的可靠性可能因温度冲击而降低。

time (continuous ON segment).

- 请勿在阳光直射、高湿、高温或低温下储存和使用液

晶显示模块，这将造成液晶显示模块的损坏或失效。

- LCD module reliability may be reduced by temperature

shock.

- 请勿在极限环境 ( 最大 / 最小存储 / 工作温度 ) 下使用或放

- When storing and operating LCD module, avoids

置液晶显示模块超过 48 小时以上。

exposure to direct sunlight, high humidity, high or low - 液晶显示模块建议存储条件为 : 0 C~40 C <80%RH 。

temperature. They may damage or degrade the LCD - 请勿让液晶显示模块存储于带有酸性 , 碱性 , 有害气体

module.

环境之中。

- Never leave LCD module in extreme condition - 在运输过程中 , 请勿让液晶显示模块跌落与猛烈震动 ,

(max./min storage/operate temperature) for more than

同时避免异常挤压 , 高湿度 , 与阳光照射 .

48hr.

- 液晶显示模块极易受静电损坏，请务必保证液晶显示

- Recommend LCD module storage conditions is

模块在防静电的工作环境中使用或保存。 ( 如 : 烙铁正

0 C~40 C <80%RH.

确接地 , 等 )

- LCD module should be stored in the room without acid, - 拿取液晶显示模块时需注意操作人员的接地情况。

alkali and harmful gas.

- 请手持液晶显示模块的边沿取放模块，防止热压纸或

- Avoid dropping & violent shocking during

TAB 部位受力。

transportation, and no excessive pressure press, - 焊接液晶模块时，请注意控制烙铁的温度、焊接时

moisture and sunlight.

间，以免烫坏导光板或偏光片，导致显示不匀等不良

- LCD module can be easily damaged by static

现象发生。

electricity. Please maintain an optimum anti-static - 请勿使用洗板水等腐蚀性液体接触液晶模块，以免腐

working environment to protect the LCD module. (eg.

蚀导光板或模块电路。

ground the soldering irons properly)

- Be sure to ground the body when handling LCD - 仅可使用柔软的干布 , 异丙醇或乙醇清洁液晶屏表面，

module.

其他任何溶剂 ( 如 : 水 ) 都有可能损坏液晶模块。

- Only hold LCD module by its sides. Never hold LCD - 请勿挤压液晶显示模块上的元器件，以避免产生潜在

module by applying force on the heat seal or TAB.

的损坏或失效而影响产品可靠性。

- When soldering, control the temperature and duration - 装配液晶显示模块时，请务必注意避免液晶显示模块

avoid damaging the backlight guide or diffuser which

的扭曲或变形。

might degrade the display result such as uneven - 请勿挤压液晶显示屏表面，这将导致显示颜色的异

display.

常。

- Never let LCD module contact with corrosive liquids, - 液晶屏由玻璃制作而成，任何机械碰撞 ( 如从高处跌落 )

which might cause damage to the backlight guide or

均有可能损坏液晶显示模块。

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the electric circuit of LCD module.

- Only clean LCD with a soft dry cloth, Isopropyl Alcohol

or Ethyl Alcohol. Other solvents (e.g. water) may

damage the LCD.

- Never add force to components of LCD module. It may

cause invisible damage or degrade the module's

reliability.

- When mounting LCD module, please make sure it is

free from twisting, warping and bending.

- Do not add excessive force on surface of LCD, which

may cause the display color change abnormally.

- LCD panel is made with glass. Any mechanical shock

(e.g. dropping from high place) will damage the LCD

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.

- 因液晶显示屏表面的偏光片极易划伤，安装完成之前

- Polarizer on LCD gets scratched easily. If possible, do

请尽量不要揭下保护膜。

not remove LCD protective film until the last step of - 请缓慢揭除保护膜，在此过程中液晶显示屏上可能会

installation.

产生静电线，此为正常情况，可在短时间内消失。

- When peeling off protective film from LCD, static

charge may cause abnormal display pattern. The - 请注意避免被液晶显示屏的边缘割伤。

symptom is normal, and it will turn back to normal in a - 请不要试图拆卸或改造液晶显示模块。

short while.

- 当液晶显示屏出现破裂 , 内部液晶液体可能流出 ; 相关

- LCD panel has sharp edges, please handle with care.

液体不可吞吃 , 绝对不可接触嘴巴 , 如接触到皮肤或衣

- Never attempt to disassemble or rework LCD module.

服 , 请使用肥皂与清水彻底清洗 .

- If display panel is damaged and liquid crystal

substance leaks out, be sure not to get any in your

mouth, if the substance comes into contact with your

skin or clothes promptly wash it off using soap and

water.

9. CTP Mounting Instructions

9. 电容触摸屏安装指导

9.1 Bezel Mounting (Figure 1)

9.1 面框安装（附图 1 ）

- The bezel window should be bigger than the CTP

- 客户面框窗口应大于 CTP 动作区域，各边离动作区应

active area. It should be≥0.5mm each side.

≥0.5mm.

- Gasket should be installed between the bezel and the

- 面框与 CTP 面板间应垫有胶垫，其最终间隙约为

CTP surface.

0.5 ～ 1.0mm.

The final gap should be about 0.5~1.0mm.

- 建议必要时在背面提供附加支架 ( 例如无安装结构的薄

- It is recommended to provide an additional support

型 TFT 模块 ) ，应仅利用适当支撑以保持模块位置 .

bracket for backside support when necessary (e.g. slim

type TFT module without mounding structure). They

should only provide appropriate support and keep the

- 安装结构应具有足够的强度，以防止外部不均匀力或

module in place.

扭曲力作用到模块上 .

- The mounting structure should be strong enough to

prevent external uneven force or twist act onto the

module.

Figure

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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

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

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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

Lighting

Illumination: Appearance 200-500Lux

照明

环境亮度在 200~500LUX

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

Temperature

Room Temperature (25 ºC), no condensation

环境温度

室温（ 25 度 ±5% ），无凝水

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

Inspection Time

15 seconds

检验时间

15 秒内

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

MI Standard 标准

Judgment 判定

No Display

√

Not Allowed

无显示

不允许

Line defect

√

Not Allowed

缺少行或列

不允许

Display abnormally

√

Not Allowed

错误的显示

不允许

Function Defective

√

Not Allowed

缺少功能

不允许

Glass Crack

√

Not Allowed

玻璃破碎

不允许

Spot Defect

√

(a+b)/2≤0.3

Allowed

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

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

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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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）

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）

Bright dot defect + Dark dot defect

√

6 max.

亮点 + 暗点

允许 6 个

FPC or FFC broken

√

Not Allowed

FPC/FFC 损坏

不允许

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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