Topway LMK070DDCFWD-NNA User manual

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Document Name: LMK070DDCFWD-NNA Engineering Sample-Manual-Rev0.1
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LMK070DDCFWD-NNA
LCD Module User Manual
Prepared by:
Yu
Checked by: Approved by:
Date: 2020-05-18 Date: Date:
Rev.
Descriptions
Edit
Release Date
0.1 Preliminary release Yuxinlang 2018-12-28
0.2 Update section 9 Yu 2020-05-18

TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
Page: 2 of 16
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 ................................................................................................................. 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. Assemble Precaution .......................................................................................................... 12
9. LCD Module Design and Handling Precautions ................................................................. 13
10. CTP Mounting Instructions ................................................................................................. 14
11. RTP Mounting Instructions ................................................................................................. 15
12. Warranty ............................................................................................................................... 16
13. Appendix <Inspection items and criteria for appearance defect> ................................... 16
13.1 Bright/Dark Dots: .................................................................................................................................................. 16

TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
Page: 3 of 16
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
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
Signal Interface : Digital 24-bits RGB
Display Technology : a-Si TFT active matrix
Display Mode : TN Type Full Color / Transmissive / Normal White
Screen Size(Diagonal) : 7.0”
Outline Dimension : 204.0 x 150.0 x 32.0 (mm)
(see attached drawing for details)
Active Area : 154.08 x 85.92 (mm)
Number of dots : 800 x 3 (RGB) x 480
Pixel Pitch : 0.0642 x 0.179 (mm)
Pixel Configuration : RGB Stripe
Backlight : LED
Touch Panel Surface Treatment: Anti-Glare
Touch Panel type: 4 wire Resistive
Viewing Direction : 6 o’clock(Gray scale Inversion) (*1)
12 o’clock (*2)
Operating Temperature : -20 ~ +70°C
Storage Temperature : -30 ~ +80°C
DVDD, GND, AVDD
7’’ TFT Panel
DE, HS, V
S,
DCLK
VGH, VGL
Timing Circuit
Source Driver
R0~R7, G0~G7, B0~B7
MODE
Touch Panel
XL, XR, YU, YD
Backlight Circuit
VLED+,VLED-
Gate Driver
Power Circuit
VCOM
DITHB

TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
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4. Terminal Function
4.1 TFT Input Terminal
Pin No.
Pin Name
I/O
Descriptions
1 VLED+ Power Positive Backlight Power Supply
2 V
LED+
3 VLED- Power Negative Backlight Power Supply
4 V
LED-
5 GND Power Power GND (0V)
6 V
COM
Input Common voltage
7 DV
DD
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 V
GL
Power Gate OFF Voltage
43 AV
DD
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 GND Power Power GND (0V)
49 NC -
No connection
50 NC
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 DV
DD
Up to down, left to right
DV
DD
GND Down to up, right to left
GND GND Up to down, right to left
DV
DD
DV
DD
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,

TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
Page: 5 of 16
4.2 Touch Panel Terminal Functions
Pin
No.
Pin
Name
I/O Descriptions
1 YL Passive Left Side sense Terminal
2 XD Passive Down Side sense Terminal
3 YR Passive Right Side sense Terminal
4 XU Passive Up Side sense Terminal
5. Absolute Maximum Ratings
Items
Symbol
Min.
Max.
Unit
Condition
Power voltage
DV
DD
-0.3 5.0 V
AVDD 6.5 13.5 V
V
GH
-0.3 40.0 V
VGL -20.0 0.3 V
V
GH -
V
GL
- 40.0 V
Operating Temperature TOP -20 70 C No Condensation
Storage Temperature TST -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, TOP=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
Power voltage
DV
DD
3.0 3.3 3.6 V *2
AVDD 10.2 10.4 10.6 V
V
GH
14.5 15.0 15.5 V
VGL -10.5 -10.0 -9.5 V
Input signal voltage V
COM
3.54 4.04 4.54 V
Input logic high voltage V
IH
0.7VDD - DV
DD
V *3
Input logic low voltage VIL 0 - 0.3DVDD V
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.

TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
Page: 6 of 16
6.2 Current Consumption
Items
Symbol
Min.
Typ.
Max.
Unit
Remark
Current for Driver
I
GH
0.05 0.2 1.0 mA V
GH
= 15.0V
IGL 0.2 0.5 1.0 mA VGL = -10.0V
IDV
DD
1 4.0 10 mA DV
DD
=3.3V
IAVDD 5 20 50 mA AVDD=10.4V
6.3 LED Backlight Circuit Characteristics
Top=25℃
Items
Symbol
MIN.
TYP.
MAX.
Unit
Note
Forward Voltage VfBLA 9.0 9.6 10.5 V If=100mA
Forward Current If
BLA
- 200.0 - mA
Cautions:
Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.
6.4 Touch Panel Characteristics
TOP =25C
Items
Symbol
Min.
Typ.
Max.
Unit
Applicable Pin
Operating Force Fop 100 - 160 g -
Operating Voltage Vop - - 7 V -
Life Time TL - 1,000,000 - times -
X Resistance XR 400 - 1100 Ω
Y Resistance YR 100 - 500 Ω
Cautions:
Exceeding the recommended Condition could cause substantial damage to the touch panel and
shorten its life time.

TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
Page: 7 of 16
6.5 Power Sequence
5.5.1 Power on:
DVDD →VGL→AVDD→VGH→Data→B/L
5.5.2 Power off:
B/L →Data→VGH→AVDD →VGL→DVDD
Note : Data include R0~R7,B0~B7,G0~G7,U/D,L/R,DCLK,HS,VS,DE.

TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
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7. AC Characteristics
7.1 Timing Characteristics
Item Symbol MIN. TYP. MAX. Unit Remark
HS setup time Thst 8 - - ns
HS hold time Thhd 8 - - ns
VS setup time Tvst 8 - - ns
VS hold time Tvhd 8 - - ns
Data setup time Tdsu 8 - - ns
Data hole time Tdhd 8 - - ns
DE setup time Tesu 8 - - ns
DVDD Power On Slew rate TPOR - - 20 ms From 0 to 90%
DV
DD
DCLK cycle time Tcph 20 - - 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

TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
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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 - 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 - 20 TH
VS Blanking tvb 23 23 23 TH
VS Front Porch tvfp 7 22 147 TH

TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
Page: 10 of 16
7.4 Data Input Format
Figure 6-2-1 Horizontal input timing diagram.
Figure 6-2-2 Vertical input timing diagram.

TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
Page: 11 of 16
7.5 Optical Characteristics
Test Conditions:
1. VCC=3.3V, VfBLA =9.6V , the ambient temperature is 25℃.
2. Exclude Touch Panel.
Item Symbol Condition MIN. TYP. MAX. UNIT Note.
Viewing angle
(CR≥10)
θL 9 o’clock 60 70 -
degree *2
θR 3 o’clock 60 70 -
θT 12 o’clock 40 50 -
θB 6 o’clock 60 70 -
Response Time Tf
Normal
θ=0o
- 10 20 msec *3
Tr - 15 30 msec
Contrast ratio CR 400 500 - -
*1
Color chromaticlty WX 0.26
0.31 0.26 -
WY 0.28 0.33 0.38 -
Luminance L - 500 - cd/m2 *4
Luminance uniformity YU 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

TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
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8. Assemble Precaution
安装注意事项
1. Customer front panel opening and thickness for TOPWAY
display module should be fit for its assembling and sealing.
 The suggested assemble gap(A) should be about
0.3~0.5mm on each side.
 The suggested front panel thickness(B) should be
about 1.5~4.0mm.
客户面板开窗及厚度应适合 TOPWAY 显示模块的安装及密
封.
· 建议每边安装间隙(A)约为 0.3 ~0.5mm.
· 建议面板厚度(B) 约为 1.5~4.0mm.
2. A silicon sealing ring ships with TOPWAY display module.
It should be in place before assembling to the front panel.
TOPWAY 显示模块上的硅胶密封圈在安装时确保嵌入到位.
3. It should fix the TOPWAY display module into the front
panel with two steps.
 Pre-fixing: Slightly tighten the screws on beam clamp in
sequence as picture on the right side.
 Final-fixing: Tighten the fixing screws on beam clamp in
sequence as well with twist torque about 6~8kg.cm
(*1) . and put the beam clamp straight.
Note:
*1. Over tightening might damage the shell and cause bad sealing
result.
应分两步将 TOPWAY 显示模块固定在面板上.
· 预紧: 将卡扣螺钉按右图所示顺序稍加预紧.
· 紧定: 再次按顺序用 6~8kg.cm 扭力拧紧卡扣螺钉(* 1),
并注意卡扣置正无歪斜.
注:
*1. 过度拧紧可能会损坏外壳和影响密封效果.
4. It is strongly suggested to check the seal balancing of the
four-side of the TOPWAY display module.
 The suggested after assemble sealed gap(C) should be
about 1.0~1.5mm.
需注意检查 TOPWAY 显示模块四周在安装后保证平衡密封
.
· 建议组装后的密封间隙(C)约为 1.0 ~1.5 mm.
5. Others:
 Never hot plug the device! Power off the device before connect or disconnect the
display module.
 Don't forget to remove the cover protective film for normal operation.
其它:
· 视频线禁止带电插拔！ 在连接或断开显示模块之前先关闭设备电源.
· 使用前请揭去保护膜.

TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
Page: 13 of 16
9. LCD Module Design and
Handling Precautions
9.液晶显示模块设计和使用须知
- Please ensure V0, VCOM is adjustable, to enable LCD module get
the best contrast ratio under different temperatures, view angles
and positions.
- Normally display quality should be judged under the best contrast
ratio within viewable area. Unexpected display pattern may com out
under abnormal contrast ratio.
- Never operate the LCD module exceed the absolute maximum
ratings.
- Never apply signal to the LCD module without power supply.
- Keep signal line as short as possible to reduce external noise
interference.
- IC chip (e.g. TAB or COG) is sensitive to light. Strong light might
cause malfunction. Light sealing structure casing is recommended.
- Make sure there is enough space (with cushion) between case and
LCD panel, to prevent external force passed on to the panel;
otherwise that may cause damage to the LCD and degrade its
display result.
- Avoid showing a display pattern on screen for a long time
(continuous ON segment).
- LCD module reliability may be reduced by temperature shock.
- When storing and operating LCD module, avoids exposure to direct
sunlight, high humidity, high or low temperature. They may damage
or degrade the LCD module.
- Never leave LCD module in extreme condition (max./min
storage/operate temperature) for more than 48hr.
- Recommend LCD module storage conditions is 0 C~40 C
<80%RH.
- LCD module should be stored in the room without acid, alkali and
harmful gas.
- Avoid dropping & violent shocking during transportation, and no
excessive pressure press, moisture and sunlight.
- LCD module can be easily damaged by static electricity. Please
maintain an optimum anti-static working environment to protect the
LCD module. (eg. ground the soldering irons properly)
- Be sure to ground the body when handling LCD module.
- Only hold LCD module by its sides. Never hold LCD module by
applying force on the heat seal or TAB.
- When soldering, control the temperature and duration avoid
damaging the backlight guide or diffuser which might degrade the
display result such as uneven display.
- Never let LCD module contact with corrosive liquids, which might
cause damage to the backlight guide or 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
- 请注意 V0, VCOM 的设定, 以确保液晶显示模块在不同
的使用温度下以及在不同的视角和位置观察模块显
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。
- 请注意液晶显示模块的显示品质判定是指在正常对比
度下以及视窗(V.A)范围内进行的，非正常对比度下液
晶可能会出现非预期的显示不良，应注意区分。
- 请勿在最大额定值以外使用液晶显示模块。
- 请勿在没有接通电源的条件下，给液晶显示模块输送
信号。
- 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。
- 集成电路因 IC 芯片(如 TAB 或 COG)对紫外线极为敏
感，强光环境下可能会引起液晶显示模块功能失效，
故应采用不透光的外壳。
- 请在液晶显示模块与外壳之间保留足够的空间(可使用
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。
- 避免液晶显示屏在某一画面下长时间点亮，否则有出
现残影的风险；请通过软件每隔一段时间改变一次画
面。
- 液晶显示模块的可靠性可能因温度冲击而降低。
- 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。
- 请勿在极限环境(最大/最小存储/工作温度)下使用或
放置液晶显示模块超过 48 小时以上。
- 液晶显示模块建议存储条件为: 0 C~40 C <80%RH。
- 请勿让液晶显示模块存储于带有 酸性, 碱性, 有害气
体环境之中。
- 在运输过程中, 请勿让液晶显示模块跌落与猛烈震动,
同时避免 异常挤压, 高湿度, 与阳光照射.
- 液晶显示模块极易受静电损坏，请务必保证液晶显示
模块在防静电的工作环境中使用或保存。(如: 烙铁正
确接地,等)
- 拿取液晶显示模块时需注意操作人员的接地情况。
- 请手持液晶显示模块的边沿取放模块，防止热压纸或
TAB 部位受力。
- 焊接液晶模块时，请注意控制烙铁的温度、焊接时
间，以免烫坏导光板或偏光片，导致显示不匀等不良
现象发生。
- 请勿使用洗板水等腐蚀性液体接触液晶模块，以免腐
蚀导光板或模块电路。
- 仅可使用柔软的干布, 异丙醇或乙醇清洁液晶屏表
面，其他任何溶剂(如:水)都有可能损坏液晶模块。
- 请勿挤压液晶显示模块上的元器件，以避免产生潜在
的损坏或失效而影响产品可靠性。
- 装配液晶显示模块时，请务必注意避免液晶显示模块
的扭曲或变形。
- 请勿挤压液晶显示屏表面，这将导致显示颜色的异
常。

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LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
Page: 14 of 16
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.
- 液晶屏由玻璃制作而成，任何机械碰撞(如从高处跌
落)均有可能损坏液晶显示模块。
- Protective film is attached on LCD screen. Be careful when peeling
off this protective film, since static electricity may be generated.
- Polarizer on LCD gets scratched easily. If possible, do not remove
LCD protective film until the last step of 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 short while.
- LCD panel has sharp edges, please handle with care.
- Never attempt to disassemble or rework LCD module.
- 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.
10. CTP Mounting Instructions
10.1 Bezel Mounting (Figure 1)
- The bezel window should be bigger than the CTP active area. It
should be≥0.5mm each side.
- Gasket should be installed between the bezel and the CTP surface.
The final gap should be about 0.5~1.0mm.
- It is recommended to provide an additional support bracket for
backside support when necessary (e.g. slim type TFT module
without mounding structure). They should only provide appropriate
support and keep the module in place.
- The mounting structure should be strong enough to prevent
external uneven force or twist act onto the module.
- 液晶屏表面带有保护膜, 揭除保护膜时需要注意可能
产生的静电。
- 因液晶显示屏表面的偏光片极易划伤，安装完成之前
请尽量不要揭下保护膜。
- 请缓慢揭除保护膜，在此过程中液晶显示屏上可能会
产生静电线，此为正常情况，可在短时间内消失。
- 请注意避免被液晶显示屏的边缘割伤。
- 请不要试图拆卸或改造液晶显示模块。
- 当液晶显示屏出现破裂, 内部液晶液体可能流出; 相
关液体不可吞吃, 绝对不可接触嘴巴, 如接触到皮肤
或衣服, 请使用肥皂与清水彻底清洗.
10.电容触摸屏安装指导
10.1 面框安装（附图 1）
- 客户面框窗口应大于 CTP 动作区域，各边离动作区应
≥0.5mm.
- 面框与 CTP 面板间应垫有胶垫，其最终间隙约为 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
型 TFT 模块)，应仅利用适当支撑以保持模块位置.
- 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.
Figure 1
10.2 Surface Mounting (Figure 2)
- As the CTP assembling on the countersink area with double side
adhesive.
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 side)
around the cover lens for tolerance.
- It is recommended to provide an additional support bracket with
gasket for backside support when necessary (e.g. TFT module
without mounding structure). They should only provide appropriate
support and keep the module in place.
- The mounting structure should be strong enough to prevent
external uneven force or twist act onto the module
10.2 嵌入安装（附图 2）
- 客户面框应具有使用双面胶粘贴 CTP 的结构沉台面，
其粘贴面要求平整且洁净无污以保证粘贴牢靠.
- 考虑到制作误差，建议面框与 CTP 盖板之间四周留有
≥0.3mm 间隙.
- 建议必要时在背面提供垫有胶垫附加支架(例如无安装
结构的 TFT 模块)，应仅利用适当支撑以保持模块位
置.
- 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。

TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
Page: 15 of 16
Figure 2
10.3 Additional Cover Lens Mounting (Figure 3)
- For the case of additional cover Lens mounting, it is necessary to
recheck with the CTP specification about the material and thickness
to ensure the functionality.
- It should keep a 0.2~0.3mm gap between the cover lens and the
CTP surface..
- The cover lens window should be bigger than the active area of the
CTP.It should be≥0.5mm each side.
- It is recommended to provide an additional support bracket for
backside support when necessary (e.g. slim type TFT module
without mounding structure). They should only provide appropriate
support and keep the module in place.
- The mounting structure should be strong enough to prevent
external uneven force or twist act onto the module.
10.3 覆加盖板（附图 3）
- 需要覆加玻璃盖板的安装，为确保其功能，有必要查
看产品规格书中有关盖板材料和厚度的说明.
- 玻璃盖板与 CTP 表面之间应留有 0.2～0.3mm 间隙.
- 玻璃盖板视窗应大于 CTP 动作区域，各边离动作区应
≥0.5mm。
- 建议必要时在背面提供附加支架(例如无安装结构的薄
型 TFT 模块)，应仅利用适当支撑以保持模块位置.
- 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.
Figure 3
11. RTP Mounting Instructions
- It should bezel touching the RTP Active Area (A.A.) to prevent
abnormal touch.It should left gab D=0.2~0.3mm in between.
(Figure 4)
11. 电阻触摸屏安装指导
- 为避免面框直接压在动作区(A.A.)上造成误动作，面框
与电阻触摸屏(RTP)之间应留有一定的空隙
D=0.2~0.3mm 之间.(附图 4)
- Outer bezel design should take care about the area outside the
A.A. Those areas contain circuit wires which is having different
thickness. Touching those areas could de-form the ITO film. As a
result bezel the ITO film be damaged and shorten its lifetime.
It is suggested to protect those areas with gasket (between the
bezel and RTP).The suggested figures are B≥0.50mm; C≥0.50mm.
(Figure 4)
- 设计面框时，要注意用面框保护触摸屏四周的非保证操
作区域，因为布线区域在此处形成一台阶，在此区域
附近操作时 ITO Film 变形较大，容易导致 ITO 损坏而
降低寿命。为保护 RTP 和避免误操作，在 RTP 与面框
之间垫缓冲物（Gasket），我们建议设计面框应覆盖
动作区的边缘，面框边缘到 V.A.区的距离 B≥0.50mm;
垫圈内边缘到 V.A.区的距离 C≥0.50mm. (附图 4)
- The bezel side wall should keep space E= 0.2 ~ 0.3mm from the
RTP. (Figure 4)
- 在设计面框与 RTP 组装时，应考虑到面框内侧与 RTP 外
侧的间距 E≥0.2mm. (附图 4)
Figure 4

TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
Page: 16 of 16
- In general design,
RTP V.A. should be bigger than the TFT V.A.
and RTP A.A. should be bigger than the TFT A.A.
(Figure 5)
- 通常设计时：
RTP 的可视区 V.A. 应不小于 TFT 的可视区 V.A.
及 RTP 的动作区 A.A. 应不小于 TFT 的动作区 A.A.
(附图 5)
Figure 5
12. 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.
-
13. Appendix <Inspection items and criteria for appearance defect>
13.1 Bright/Dark Dots:
Defect Type Specification Major Minor
Bright Dots N≤ 2 ●
Dark Dots N≤ 3 ●
Total Bright and Dark Dots N≤ 4 ●
Note: 1. The definition of dot: The size of a defective dot over 1/2 of whole dot is regarded as one defective dot.
2. Bright dot: Dots appear bright and unchanged in size in which LCD panel is displaying under black
pattern.
3. Dark dot: Dots appear dark and unchanged in size in which LCD panel is displaying under pure red,
green, blue pattern.