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WD8752 Controller IC GFF Touch Panel 21.5 Inch Multi Touch Panel

Price : $50-56/piece Packaging Details : carton
Delivery Time : 5-8 work days Payment Terms : L/C, T/T, Western Union
Supply Ability : 50000~100000pcs/Month
Place of Origin: Suzhou, Jiangsu, China Brand Name: Master Touch
Model Number: MST-GFF-TPB-21.5-WDA

Detail Information

Name: MST ITO Touch Screen Panel Touch Point: 10
Operating System: Android/ Linux/ Windows Touch Technology: Pcap
Controller: WD8752 Channel: TX: 34 RX: 60
Structure: Cover Glass+ITO Film+ITO Film Power Supply: USB: 4.7V ~ 6.0V, Typical: 5V
High Light:

GFF Touch Panel 21.5 Inch

,

WD8752 Controller IC Touch Panel

,

21.5 Inch Multi Touch Panel

Product Description

 

Master Touch 21.5 Inch Multi Touch WD8752 Controller IC GFF Touch Panel

 

1. Product Description

 

Master Touch 21.5 inch GFF projected capacitive touch screen panel, via a process of sputtering an ITO pattern on a film substrate to make a film-sensor, perceive touch accurately through capacitance coupling.

Capacitive touch panel works through body's current induction.When finger is on or close to touch panel surface,due to body electric field, the user and touch panel surface forms one coupling capacitance. For high frequency current, capacitance is direct conductor, then fingers suck a small current from the contact point, through amplifying and accurately calculating this current signal, the controller works out the touch point position.

The advantages of 21.5 inch GFF are low capital cost, suitable for small quantity batch production, and light structure.

 

2. Module Specification

 

2.1 Basic Information

 

Item Feature Remarks
Controller WD8752 -
Channel TX :34 RX: 60 -
Power 5V USB: 4.7V ~ 6.0V, Typical:5V
Communication USB USB: 2.0 Full Speed
Number of Touch point 10 -
O.S.  Windows/ Android/ Linux  
Power Consumption

1.Active Mode: Max.120mA @ USB Input 5V

2.Idle Mode: 90mA @ USB Input 5V

3.Sleep Mode: less than 1mA @ USB Input 5V

 
2.2 Mechanical Features
 
Item Specification Unit
Screen Size 21.5 Inch
Viewing Area

477.64(L)×269.11(W)

mm
Cover lens O.D

497.42(L)×297.5(W)

mm
 
2.3 Optical Features
 
Item Specification
Transparency Viewing Area ≧85%

 

3. Sensor Specification

 

Item Specification Unit
Stacked structure Cover 1.8 mm
Top OCA 0.125 mm
Film Sensor 0.125 mm
Bottom OCA 0.125 mm
Film Sensor 0.125 mm
Sensor Dimension
 
OD Size X

496.42

mm
Y

289.41

mm

 

4. Electrical Specification

 

Item Type Value Unit Remarks
Operating Temperature - -20 ~ +80

Humidity

20%~85% RH

Storage Temperature - -30 ~ +80

Humidity

20%~85% RH

ESD Requirement ESD air requirement ±8 KV Air
ESD contact requirement ±6 KV Touch

 

5. Test

 

Item Specification Result
Cover lens Ball Drop 200g ± 2g
35cm
One drop test on each of the 5 selected points, No damage
Hardness Pencil: 6H
Pressure: 1N/45°
Hardness ≧ 6H
Warpage By Gauge Warpage 0.1% ≦ Length *
FPC/COF Bending Bending range 0-180° 30times
Electrical Function ok
-

 

6. Drawing

 
WD8752 Controller IC GFF Touch Panel 21.5 Inch Multi Touch Panel 0
 
7. Details
 
WD8752 Controller IC GFF Touch Panel 21.5 Inch Multi Touch Panel 1

 

8. Cosmetic Inspection

 

The following standard only applies to the visual areas. If the TP function is good, the non-visual appearance may negotiate to relax the standard. W=Width L=length D=Diameter GT=Glass thickness. If soft cloth which dips in alcohol can wipe besmirch, it does not apply to this appearance standards.

Inspection methods and conditions:


1)Inspection environment: Temperature:20-22 ℃; Humidity: 65 + 10% RH;


2)Inspector qualifications: The appearance of product must be inspect by a good eyesight inspector.

 

3) Inspection methods: The distance between inspector and product should be 30±2cm and putting a lamp 12 to 20 watts of cold white fluorescent lamp in the observation station of product.

 

WD8752 Controller IC GFF Touch Panel 21.5 Inch Multi Touch Panel 2

WD8752 Controller IC GFF Touch Panel 21.5 Inch Multi Touch Panel 3

 

9. FAQ

WD8752 Controller IC GFF Touch Panel 21.5 Inch Multi Touch Panel 4

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