Applicability of 4-inch TFT LCD screen

The 4-inch TFT LCD screen has wide applicability and can play an important role in various electronic devices and applications. The following are some typical application scenarios for 4-inch TFT LCD screens:

Smartphones: Although 4-inch screens are gradually being replaced by larger-sized screens in the smartphone market, the application of 4-inch TFT LCD screens can still be seen in some entry-level and specific smartphone models.

Portable game consoles: Some portable game consoles, such as handheld consoles and game consoles, may use 4-inch TFT LCD screens to provide a good gaming experience.

Digital Camera: In some entry-level and mid-range digital cameras, the 4-inch TFT LCD screen can be used as a viewfinder and image preview display.

Smart wearable devices: Some smart watches, fitness trackers and other smart wearable devices may use 4-inch TFT LCD screens to display time, health data, notifications and other information.

Industrial control: In the field of industrial control, 4-inch TFT LCD screens can be used in control panels, monitoring systems and instrument panels to display various real-time data and control options.

Medical equipment: In medical equipment, 4-inch TFT LCD screens can be used for medical image display, patient monitoring, surgical navigation and other applications.

Car display system: In cars, 4-inch TFT LCD screens can be used as in-vehicle infotainment systems, navigation displays, reversing camera displays, etc.

In general, the 4-inch TFT LCD screen has a wide range of applicability and can find applications in a variety of consumer electronics, industrial equipment and medical equipment. Its moderate size balances the relationship between display content and device size, while providing good visual effects and interactivity.

4.0-inch TFT resolution

According to actual application needs, the following resolutions are currently popular on the market: 480*480, 480*800, 320*320, 400*960, 720*720

480*480 4-inch TFT: For related products, please click this product link：TFT-H040A1PVIST3N40

TFT-H040A1PVIST3N40—As homes enter our lives, the switch panels we must come into contact with every day also need to be updated from switch buttons to smart display touch panels. This smart 86 box-specific TFT square display TFT-H040A1PVIST3N40 has a resolution of up to 480*480 and uses IPS full-viewing technology to perfectly and clearly display various smart switch UIs.

480*800 4-inch TFT: For related products, please click this product link:TFT-H040A2WVIIL5C33

TFT-H040A2WVIIL5C33—It is a 3.97-inch TFT LCD display module using an IPS panel. This TFT has a resolution of 480 x 800 pixels. The module has a built-in ST7701S driver IC and adopts IPS panel technology. The viewing angle range is left: 80 degrees/right: 80 degrees/top: 80 degrees/bottom: 80 degrees. The panel has a wide viewing angle and colorful colors. Bright, saturated and natural high-quality picture, module brightness (typical value) 600 nits, contrast ratio (typical value) 900:1, using glossy glass surface, using a bright surface on the display surface can reflect more light, thereby enhancing dark environments Lower brightness performance to improve visibility. In addition, the glossy surface helps maintain color saturation, making the displayed images more vivid and realistic, resulting in less light loss, thus improving the overall efficiency of the display.

320*320 4-inch TFT: For related products, please click this product link:TFT-H040A12DHIIL4N40

TFT-H040A12DHIIL4N40—It is a square full-vision TFT display. The TFT resolution is 320x320 pixels. The interface method is SPI. The power supply voltage is 2.8V. It has bright colors and a saturated and natural high-quality picture. The driver chip is ILI9488, which is especially suitable for low cost. 86 box solution.

400*960 4-inch TFT: For related products, please click this product link:TFT-H040A18ZDIST5N40

TFT-H040A18ZDIST5N40 | 4.0" IPS LCD | 400x960px resolution screen | RGB+SPI interface | Optional resistive/capacitive screen

This 4.0-inch IPS TFT display features a high resolution of 400x960 pixels and has built-in EMI shielding. This TFT features an RGB interface that provides additional benefits such as high-speed data transfer rates, lower EMI, and reduced wiring complexity. Also included is a high-brightness LED backlight with a typical brightness level of 500 cd/m2. Thanks to the IPS technology built into this LCD monitor, the monitor offers stunning clarity, superior color reproduction, better image consistency, and high contrast ratio across all viewing angles.

While this transmissive LCD does not include a touch screen, its impressive quality and 3.3V power supply make it an excellent choice for projects that require high-end visual output but without touch screen functionality. Powered by a built-in ST7701S driver IC and compatible with Raspberry Pi, this TFT display offers superior performance and reliability. This driver optimizes the monitor's functionality, ensuring smooth operation and accurate rendering of images and graphics. The LCD uses FFC (Flexible Flat Cable) connectivity to ensure easy electrical connection. Our monitors are RoHS compliant and adhere to strict environmental and safety standards.

720*720 4-inch TFT: For related products, please click this product link：TFT-H040A22DKINV3N30

TFT-H040A22DKINV3N30 | 4" IPS LCD display | with LVDS interface | 720x720 px high resolution | IPS screen | Linux/industrial control/RK

The TFT-H040A22DKINV3N30-LVDS is a high-performance 4-inch IPS TFT monitor that delivers superior image quality, superior color reproduction and contrast at any angle. It has a resolution of 720x720 pixels and offers a 24-bit true color LCD display. The monitor features a better FPC design, has EMI shielding on the cables, and is RoHS compliant. Although this monitor does not come with a touch screen, we offer capacitive and resistive options.

4-inch IPS LCD screen with EMI shielding and 3M brightness enhancement film

This 4-inch IPS display’s brightness of 300cd/m2, transmissive display mode and LVDS interface make it an excellent choice for various industries including medical, industrial, control, aerospace and automotive.

For more information about 4 inchTFT, please contact us!