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Display Modules
4-Inch Square TFT LCD Display with CTP Touch, 720×720 Resolution, MIPI Interface
Display and controller solution support for engineering-driven projects.
– LCD Size: 4.0 inches
– Resolution: 720 × 720 pixels
– Brightness: 300 cd/m²
– Interface Type: MIPI
– Touch Support: Integrated CTP Touch Panel
For faster evaluation, please share your target application, display size, resolution, interface, touch requirement, controller board requirement, and annual demand.
Engineering Review
Confirm Product Fit Before Sampling
Display and controller board projects usually require more than a model number. RJY can review your technical requirements before sample or quotation discussion.
01
Specification Matching
Check display size, resolution, brightness, viewing angle, touch requirement, and operating environment.
02
Interface & Board Review
Review interface type, pin definition, controller board requirement, driver IC, and system compatibility.
03
Customization Direction
Discuss cover glass, backlight, touchscreen, FPC, firmware, and mechanical coordination when needed.
04
RFQ Preparation
Prepare application details, sample quantity, annual demand, target timeline, datasheet, or reference product.
This 4-inch square TFT LCD display with CTP touch is designed for embedded applications requiring a compact 1:1 display format, high-resolution graphics, and interactive user operation. Featuring a 720×720 resolution, 300 cd/m² brightness, and a MIPI interface, this module provides a reliable display solution for industrial HMI systems, smart control panels, portable devices, and customized embedded products.
The square display format provides a balanced visual area for modern user interfaces, allowing developers to create clear icons, dashboards, control panels, and graphical interfaces. The integrated capacitive touch panel (CTP) enables intuitive interaction, making it suitable for touch-enabled applications requiring both display performance and user control.
Equipped with the FL7707 driver IC, this display module supports stable image control and efficient embedded system integration. With a compact module size of 84 × 84 × 3.20 mm and an operating temperature range of -20°C to +70°C, it is suitable for various industrial and embedded applications where space efficiency and reliability are important.
Specification Table
| Item | Specification | Unit | Remark |
|---|---|---|---|
| LCD Size | 4.0 | inch | Square display |
| Resolution | 720 × 720 | pixels | 1:1 square resolution |
| Driver IC | FL7707 | — | Display driver IC |
| Viewing Area | 71.93 × 71.93 | mm | Active display area |
| Module Size | 84 × 84 × 3.20 | mm | Integrated touch structure |
| Brightness | 300 (Typ.) | cd/m² | Standard brightness |
| Interface | MIPI | — | High-speed embedded interface |
| Touch Panel | CTP | — | Integrated capacitive touch panel |
| Operating Temperature | -20 ~ +70 | °C | Industrial application range |
Key Features
4-Inch Square TFT LCD Design
The 1:1 square display format provides a balanced visual area for modern graphical interfaces, control panels, and embedded applications requiring symmetrical screen layouts.
720×720 High-Resolution Display
The 720×720 pixel resolution delivers sharp images, detailed icons, and smooth UI rendering for smart devices and industrial control systems.
MIPI Interface Support
The MIPI interface provides an efficient connection solution for embedded platforms requiring compact wiring, high-speed communication, and reliable display performance.
Integrated Capacitive Touch Function
The built-in CTP touch panel enables interactive operation for HMI systems, smart terminals, control panels, and customized electronic products.
Compact Integrated Structure
With an outline dimension of 84 × 84 × 3.20 mm, this display module provides a compact solution for applications requiring limited installation space.
Wide Operating Temperature Range
The module supports operation from -20°C to +70°C, making it suitable for various embedded and industrial environments.
Applications
- Industrial HMI Systems
- Smart Home Control Panels
- Portable Electronic Devices
- IoT Smart Terminals
- Medical Equipment Interfaces
- Smart Control Devices
- Embedded Display Systems
- Customized Electronic Products
Application Scenarios
Industrial HMI Control Panels
The square touch display provides a clear and efficient interface solution for industrial equipment, automation systems, and monitoring devices.
Smart Home Control Interfaces
The 1:1 display format is suitable for smart switches, wall-mounted controllers, and connected home devices requiring a compact touch interface.
Portable Embedded Devices
The compact structure, high-resolution output, and integrated touch function make this display suitable for portable instruments and handheld electronic products.
Medical and Professional Equipment
The square display format supports clear data presentation, graphical interfaces, and touch interaction in professional equipment applications.
Customized Display Projects
RJY Display supports project-based display customization, including touch integration, interface adaptation, backlight customization, and controller matching according to application requirements.
Why Choose This 4-Inch Square TFT LCD Display?
- 1:1 square display format for balanced UI design
- 720×720 high-resolution output for detailed graphical interfaces
- Integrated CTP touch panel for interactive applications
- MIPI interface support for compact embedded system integration
- Compact module structure for space-limited products
- Wide operating temperature range for industrial applications
- Customization support based on project requirements
Request Information
Would you like to receive the datasheet, 3D model (STEP file), or a sample quote for evaluation?
Contact RJY Display for display integration support and customized TFT LCD solutions.
FAQ
Is RJY an Original Equipment Manufacturer (OEM)?
Yes. RJY is a direct provider and manufacturer with vertically integrated capabilities, offering full-cycle hardware innovation from design and PCBA assembly to final system integration.
What types of customization does RJY accept?
We can provide customization in the following four distinct areas: Systems & HMI、Display Modules、Software Services、Industrial Design.
What is the stock status for this product?
Most products on display have at least one unit in stock for testing or quick sampling. For sample requests over 20 units, please check with us in advance to ensure the current stock status.
How are the fees structured for custom projects?
Our custom project fees typically consist of two main components:
NRE (Non-Recurring Engineering) fees and unit pricing.
In many cases, if your order reaches a certain volume, we offer to offset or credit a portion of the NRE fees back to you.
NRE (Non-Recurring Engineering) fees and unit pricing.
In many cases, if your order reaches a certain volume, we offer to offset or credit a portion of the NRE fees back to you.
How long does a typical customization project take?
The timeline depends on the depth of customization:
Software/Firmware Tweaks: 1-2 weeks
Minor Hardware Modifications: 4-6 weeks
Full-Cycle R&D Projects: 12-16 weeks
Software/Firmware Tweaks: 1-2 weeks
Minor Hardware Modifications: 4-6 weeks
Full-Cycle R&D Projects: 12-16 weeks
Knowledge Hub
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