Description
2.0 inch IPS TFT LCD display | 240×320 pixels | MCU 8Bit Interface
The TFT-H020A4QVIST6N40 is a professional 2 inch display TFT-LCD module launched by HOTHMI. Adopting a vertical screen design, this module features a high-definition resolution of 240*320Pixels, delivering a pixel density (PPI) of 199. The picture quality of this 2.0 inch IPS TFT LCD display is far superior to ordinary screens of the same size, with almost no visible graininess even when viewed at an extremely close distance.
The biggest technical highlight of this module lies in its adoption of IPS full-view liquid crystal panel technology. This 2 inch lcd achieves a “FULL O’clock” viewing angle, with typical values of 80 degrees for left/right/top/bottom respectively, and a high contrast ratio of 800:1. This means that no matter from which angle you view this 2 inch display, there will be no color distortion or “reverse white” phenomenon common in ordinary TN screens, and the colors remain bright and full.
In terms of structural design, this 2 inch display is extremely compact. Its overall dimensions are only 35.70mm (width)*51.20mm (height)*2.30mm (depth), with an AA of 30.60mm*40.80mm. The screen ratio of this is rationally designed, and its ultra-narrow bezel makes it ideal for embedding into portable devices with stringent space requirements.
This model is available without a touchscreen, but we can also customize capacitive or resistive touchscreens. The display’s cover glass can be customized with various features, including color, shape, and surface finish (AG/AR/AF). For the same size, users can also choose the 2-inch 176×220 resolution TFT-H020B5QCTST2N20 version
Specifications
Core Highlights
- IPS Full View and Ultra-High Brightness
For devices that need to work outdoors or in strong light environments, screen readability has always been a pain point. The 2 inch display provides double protection for this pain point. Firstly, the IPS panel ensures a wide viewing angle, allowing the content of this 2 inch display to be clearly seen no matter how the device is placed at any angle. Secondly, this module offers an ultra-high brightness of 600 cd/m² (typical value). Even in the midday sun, the content on this remains clearly visible without the need to block the light with hands.
- Industrial-Grade Wide Temperature Design
This 2 inch display is strictly designed in accordance with industrial-grade standards. Its operating temperature range is as wide as -30℃~+85℃, and the storage temperature is also -30℃~+85℃. This means that whether it is outdoor work in cold winters or in a closed industrial chassis with high temperatures, this can start stably and work normally. In addition, the product is specially equipped with anti-static ESD protection design up to 8KV, which effectively resists the impact of electrostatic discharge on the screen and the core chip of the motherboard, greatly improving the on-site reliability of the device with this 2 inch display.
- Dual Interface Compatibility and Built-in IC
This 2 inch display module is equipped with the widely used ST7789V driver chip, which provides stable and easy-to-control driving. In terms of interface design, this 2 inch display supports MCU 8/16-bit parallel interface and is backward compatible with 3-wire/4-wire SPI serial interface. This design fully takes into account the performance differences of different main control chips: for video or animation display that requires high-speed refresh, the parallel interface can be used; for single-chip microcomputers with scarce pin resources (such as Arduino, C8051, STM32), the SPI serial port can be used for control, which greatly reduces the difficulty and cost of hardware design for this 2 inch display.
Product Applications
- Industrial Control and Instrumentation: This is the core application field of this 2 inch display. In devices such as handheld multimeters, thermal imagers, industrial endoscopes, and PLC programmers, there are extremely high requirements for the stability and viewing angle of the display screen. The wide temperature characteristics and 8KV anti-static capability of this 2 inch display perfectly fit the complex electromagnetic environment and temperature changes in industrial sites.
- Outdoor Smart Terminals: Such as handheld GPS, walkie-talkie screens, outdoor sports cameras, etc. The brightness of more than 600 nits ensures the visibility of this 2 inch display in the sun, and the durability of the IPS hard screen is better than that of the soft screen.
- Smart Home and Medical Equipment: In fields with high requirements for display effects such as smart access control systems, intercom indoor units, and portable medical monitors, the rich colors and stable performance of this 2 inch display are also highly favored.
FAQs about 2 inch display
Q1: The operating temperature of the module is -30~85℃, but what is the temperature resistance range of the backlight LED?
A:This is an in-depth question related to reliability. Although the overall operating temperature of the module is wide, the luminous efficiency and service life of the LED backlight will be affected by temperature. This 2 inch display uses white LEDs, with a typical driving current of 80mA (total voltage 3.2V) for a single LED.
At a low temperature of -30℃, the light efficiency of the LED may decrease temporarily, and there may be a slight redness or dimming phenomenon when starting, but this is a physical characteristic and usually recovers as the temperature rises. At a high temperature of 85℃, attention should be paid to heat dissipation. Although this 2 inch display is marked with high brightness, when working for a long time at the extreme temperature of 85℃, it is recommended to appropriately reduce the PWM duty cycle through software and lower the backlight current in exchange for a longer backlight life, which is the “derating use” principle in industrial design for this 2 inch display.
Q2: The interface of this screen is 40Pin, and the flat cable is easy to damage. Is there an alternative connection solution?
A:Standard products usually use FPC with 0.5mm pitch, which is plugged into the board-to-board connector. If you are worried about the FPC being damaged during plugging and unplugging or loosening in a vibrating environment, there are the following mature solutions for this 2 inch display:
- Hot bar welding: In mass production, the FPC can be directly welded to the pads of the PCB board. This connection method is the most reliable and has the strongest anti-vibration ability for this 2 inch display.
- Connector fixing with glue: On the basis of using the FPC connector, apply special fixing glue to reinforce the joint between the FPC and the connector of this 2.0 inch IPS TFT LCD display.
- Custom adapter board: Contact HOTHMI to customize an adapter board (COB structure) with pins, which converts the 40Pin FPC interface of this 2 inch display into a standard 2.54mm pin header that can be directly plugged into a breadboard or development board, which is very convenient for prototype design and proofing of this.
