3.5-inch Capacitive Touchscreen with GT911 Controller

3.5-inch Capacitive Touchscreen with GT911 Controller

▶ Model: CTPH035B21

▶ Type: 3.5-inch capacitive touch screen
▶ Window size (mm): 70.68x53.16
▶ Cover size: (mm): 76.9x63.9x1.45
▶ Diagonal size: 3.5 inches
▶ Number of touch points: 5-point touch
▶ Control chip: GT911
▶ Interface: I2C
▶ Connection type: 6 PIN with connector FPC
▶ Process structure: G+G
▶ Cover shape: 1:1 cover
▶ Hardness: 6H
▶ Transmittance: ≥85%

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- Transportation
- Payment
- Taxes
- Ensure
- Return
- Discontinued
Transportation

Our company cooperates with SF Express for domestic express delivery, and DHL for overseas express delivery. You can contact us to inquire about freight and weight to get the latest quotation.

Payment

Online payment is not supported. Transfers can be made through corporate accounts. If a VAT invoice is issued, please contact our sales staff to obtain a corporate account.

Taxes

All products sold on this website do not include tax. If you need a VAT invoice, please contact our sales staff to purchase offline.

Ensure

All products sold on this website have a one-year warranty. If the product is damaged due to improper use by the customer, it will be repaired free of charge. Material cost will be charged.

Return

Products within the warranty period can be returned for repair or replacement. Before returning, please contact our sales staff to confirm the reason for return.

Discontinued

We are committed to long-term production of all products sold on this website. If the IC or panel is discontinued, we will try our best to replace it with compatible materials.

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Product Description
Customized Services
Attributes

3.5-inch capacitive aTouch Panel | G+G structure | IIC interface | GT911 controller 5-point touch
This product is a 3.5-inch capacitive touch panel, which matches the 3.5-inch TFT LCD display screen in a 1:1 ratio. Users can bond it to the display through optical bonding or air bonding.

This touch panel adopts G+G (glass + glass) composite structure. G+G (glass + glass) composite structure capacitive touch screen is a classic capacitive touch screen structure. It consists of two layers of glass: the upper layer is the cover glass (Cover Lens), which directly contacts the finger; the lower layer is the sensor glass (Sensor Glass), which is etched with a transparent conductive pattern (usually ITO). The reasonable structure makes this touch panel have a transmittance of 85%. Good transmittance not only brings a comfortable feeling to the viewer, but also saves the power consumption of the entire module.

This model of touch panel uses the GT911 control chip, 5-point touch, and communicates through the IIC interface. It brings users a smooth and unobstructed feeling of operation. In terms of reconnection, this touch screen provides a 6-pin plug-in FPC, which allows users to easily assemble and disassemble the touch panel and TFT display.

At the same time, we provide customized services for this touch panel, whether it is the interface, connection method (plug/weld/connector), process structure (G+G/G+FF/G+F/P+G/P+F), or the size of the cover, hardness (3H/6H/7H/9H) and surface treatment (AF/AG/AR), we can provide you with one by one.

The recommended TFT LCD model for use with this 4.3-inch capacitive touch screen is: TFT-H035B16VGIST3C30 .

Datasheet for Touch Panel,Controller↓

Name	Date	Size
CTPH035B21	June 06, 2025	74.52KB

Customized material: Customized touch cover of various materials: such as tempered glass (up to 7H), acrylic material, etc.

Customized special-shaped contour: Support special-shaped cutting/opening/edging (2.5D, 3D)/transmittance.

Cover color and logo silk screen customization: Supports silk screen printing in different colors (usually black or white); supports silk screen printing of logos in multiple colors.

Customized cover thickness: 0.55/0.7/1.0/1.1/1.8/2.0/3.0/4.0/5.0/6.0/8.0/10.0(mm)，etc.

Customized different transmittance: High light transmission efficiency, which directly affects the visual effect of the touch screen.

Opening service: Through holes with a diameter of ≤10mm can be opened.

Cover surface treatment: Optional touch screen surface treatment methods are available: AG anti-glare/AR anti-reflection/AF anti-fingerprint.

项目	参数描述	单位
CTP Model	CTP-H035B21
Diagonal size	3.5”	“
Appearance size	76.9x63.9x1.45	Dot
Driver chip	GT911	mm
Structure	G+G	mm
Interface	IIC	mm
Number of pins	6 PIN	mm
Connection method	FPC	v
Surface hardness	H6
Transmittance	≥85％
Operating voltage	+3.3V
Operating temperature	-20℃ ～ 70℃