The 30 inch touch screen with USB interface is large projected capcaitive touch panel,with ILI2312 controller IC,strong impact resistance, support with gloves touch and thick tempered glass on side.Mainly for industrial use, G+G structure. Mainly used in outdoor advertising equipment, industrial equipment, commercial human-computer interaction terminals, etc. Customization of structures, surface treatment like AG AR AF and other special processing are supported. interface iic/usb/rs232 optional;
The 30 inch touch screen with USB interface is designed with narrow border. The dimension of the touch screen and the display almost reached 1:1 .. It is very suitable for the installation of product embedded assemble module. It can achieve multi-touch, and its performance is very stable. It is mainly used in some industrial applications or outdoor advertising terminals. At present, there are samples in stock. It is also a standard capacitive touch screen product for display and integrated computer products launched by our company.
|Model Number||HX3001701 V1.0|
|Touch Points||10 points|
|Operating Environment||-20℃ ～ 70℃,≤85% RH|
|Storage Environment||-30℃ ～ 80℃,≤85% RH|
|Power Supply Voltage||5V|
|Outline Dimension||675.30(W)x434.80(H)x3.10(D) mm|
|Viewing Area||643.28(W)x402.80(H) mm|
|Support Systems||Windows/Android/Linux etc.|
Capacitive touch screen has been increasingly used in various fields with rapid technology development. In order to meet different requirements of worldwide customers, Grahowlet supply all kinds of product structures such as G + G, G + F (G + F + F ),P + G, etc. and various technical support programs such as Cypress , Atmel, EETI, FocalTech, Goodix etc. according to different application environments.
Support contour cutting including round, curve, polygons or other irregular shape----meet customers’ different requirements.
Cover glass can be treated with AG, AR, AF and other special optical process to meet application environment of outdoor use & sunlight readable.
Optical bonding and air bonding optional. Optical bonding will Greatly improve the impact resistance, waterproof, dustproof and so on.
Technical Q & A
Q: About the capacitive screen we are using now, the power supply interference problem is very serious. What should we do to eliminate the interference of the power supply? Apart from scanning frequency to avoid the noise frequency of the power supply, improve the signal-to-noise ratio of the screen? Is there any other way?
A: Seeing from all current cases, power supply interference is mainly concentrated in large-size TP (7inch or above), and we have the following solutions:
(1) Choose a quality power supply. This is very important and the most effective and fundamental way to solve power disturbances;
(2) Frequency hopping. Use the spectrum analyzer to find the area where the common mode interference strength of the adapter is small, and then set the TX scan frequency to this area through software setting, which can effectively control the interference. If there is interference in the full frequency band, it is recommended to abandon the adapter;
(3) Improve the signal to noise ratio. In the initial design of TP (7.0inch or above), consider using the low-impedance surface-rent material for the RX signal channel and using the design of the double-sided trace. Try to control all the channel resistances within 10K, which can effectively control the power supply interference. ;
(4) It is also possible to change the charger, increase the algorithm filtering, and adopt Cypress, EETI, ILI schemes with strong anti-interference performance.