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Display & embedded solutions

RJY-WC-40596Engineering review

4 inch Square TFT LCD Display – 720*720 High-resolution, MIPI Interface, LCD Touch Panel

Size: 4 inch square lcd module Touch: With Touch Resolution: 720*720 Touch Interface: I2C Display interface: MIPI Display driver IC: AXS1832 Touch IC: FT6336U(Single-touch) , AXS9621(multitouch), HY4621(multi-touch)

Size: 4 inch
Resolution: 720×720
Brightness: 300 cd/m²
Interface: MIPI
Touch: Yes

Engineering verification

Manufacturer model/SKU was not supplied; RJY-WC-40596 is an internal catalog reference.
Export contains conflicting size: 4.0 / 4. Verify the source specification.

Designed for integration

Product overview.

This 3.95-inch TFT LCD module features a resolution of 480(RGB) x 480 pixels and supports 16.7 million colors, delivering vibrant and clear visuals. With a compact design (74.66(W) × 76.54(L) × 2.09(H) mm), it includes a capacitive touch panel (84(W) × 84(L) × 3.97(H) mm) for enhanced interactivity. The module offers a wide viewing angle (all O’Clock) and uses an LED backlight with 250 cd/m² luminance, ensuring good visibility.

Powered by the ST7701 driver IC and NT8052C touch IC, it supports RGB and SPI interfaces for flexible integration. With an operating temperature range of -20°C to +70°C, this module is ideal for automotive, industrial, and consumer applications, providing reliable performance in various environments.

Item	Contents	Unit	Remarks
LCD Type	TFT	–	3.95-inch TFT
Recommended Viewing Direction	ALL O’Clock	–	–
Module Area	74.66(W) × 76.54(L) × 2.09(H)	mm	–
Module + CTP Area	84(W) × 84(L) × 3.97(H)	mm	–
Active Area	71.86(W) × 70.18(L)	mm	–
Number of Dots	480(RGB) × 480	Dots	–
Pixel Pitch	0.1462 × 0.1462	mm	–
Driver IC	ST7701	–	–
Touch IC	NT8052C	–	–
Interface Type	RGB + SPI Interface	–	–
Colors	16.7M	–	–
Backlight Type	LED	–	–

APPLICATION OF 4 INCH 720*720 TFT LCD MODULE

Industrial Control Systems: The 4 inch touchscreen can be used in industrial control systems where a compact and durable display is required. It can be utilized in control panels or HMI (Human-Machine Interface) devices to monitor and control various industrial processes.

Portable Gaming Devices: The square LCD panel touchscreen can be employed in handheld gaming consoles or portable gaming devices. It can provide an interactive display for gaming controls, menus, and gameplay visuals.

Point-of-Sale (POS) Systems: The 4 inch LCD touchscreen can be used in compact point-of-sale systems for retail or hospitality industries. It can serve as an interactive interface for customers and cashiers to input information, select items, and complete transactions.

Medical Devices: The 4 inch TFT display can find applications in medical devices, such as portable diagnostic devices or patient monitoring systems. It can provide a visual interface for displaying vital signs, medical data, or test results.

IoT (Internet of Things) Devices: The Square TFT touchscreen can be integrated into various IoT devices where a compact and interactive display is needed. For example, it can be used in smart home control panels, home automation systems, or IoT-enabled appliances.

Handheld Measurement Instruments: The 4inch Touch display can be utilized in handheld measurement instruments like multimeters, oscilloscopes, or thermal cameras. It can provide a visual interface to display measurement readings, waveforms, or thermal images.

Personal Digital Assistants: The compact size and touch functionality make the display suitable for personal digital assistants (PDAs) or handheld organizers. It can provide a visual interface for managing schedules, contacts, notes, and other personal information.

Key features

Size: 4 inch square lcd module
Touch: With Touch
Resolution: 720*720
Touch Interface: I2C
Display interface: MIPI
Display driver IC: AXS1832
Touch IC: FT6336U(Single-touch) , AXS9621(multitouch), HY4621(multi-touch)

Technical reference

Specifications.

Values are model-specific. Review document revisions and any verification notes before integration.

Display

Parameter	Value	Unit	Notes
Size(inch)	4.0	—	—
Resolution	720×720	—	—
Size	4 inch square lcd module	—	—
LCD Type	TFT	—	3.95-inch TFT
Module Area	74.66(W) × 76.54(L) × 2.09(H)	mm	-
Number of Dots	480(RGB) × 480	Dots	-
Pixel Pitch	0.1462 × 0.1462	mm	-
Backlight Type	LED	—	-

Optical

Parameter	Value	Unit	Notes
Brightness (cd/m²)	300	—	—
Recommended Viewing Direction	ALL O'Clock	—	-
Colors	16.7M	—	-

Mechanical

Parameter	Value	Unit	Notes
Active Area	71.86(W) × 70.18(L)	mm	-

Touch

Parameter	Value	Unit	Notes
Touch	With Touch	—	—
Touch Interface	I2C	—	—
Touch IC	FT6336U(Single-touch) , AXS9621(multitouch), HY4621(multi-touch)	—	—
Module + CTP Area	84(W) × 84(L) × 3.97(H)	mm	-
Touch IC	NT8052C	—	-

Interface & pins

Parameter	Value	Unit	Notes
Interface	MIPI	—	—
Display interface	MIPI	—	—
Display driver IC	AXS1832	—	—
Driver IC	ST7701	—	-
Interface Type	RGB + SPI Interface	—	-

Drawings & technical resources

Product documents.

Contact our team for the current datasheet or mechanical drawing.

Before you integrate

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