The difference between wide temperature LCD screen and normal temperature LCD screen

    Customers often ask what is the difference between wide-temperature LCD screens and ordinary-temperature LCD screens. The editor will explain here that the main differences are reflected in the following aspects:

1. Temperature adaptability

‌Working range

Ordinary LCD screens usually work in the range of -20°C to 50°C, while wide-temperature LCD screens can support a temperature range of -30°C to 85°C or even wider. Military and special equipment require a low temperature of -40 degrees.

‌Storage temperature‌

Ordinary LCD screens have a narrow storage temperature range, while wide-temperature screens can withstand extreme storage environments of -30°C to 80°C, adapting to industrial scene requirements.

2. Materials and processes

‌Liquid crystal materials‌

Wide-temperature screens mostly use VA (vertical alignment) or specially optimized liquid crystal molecular structures to enhance temperature stability; ordinary screens often use TN (twisted nematic) liquid crystal materials, which are prone to response delays or color distortion at low temperatures.

‌Backlight technology‌

Wide temperature screens generally use LED backlights that are more resistant to high and low temperatures (including special drive designs) to ensure low-temperature startup and high-temperature tolerance; ordinary screens may use ordinary backlight materials, and high and low temperatures can easily deform the backlight material, making the display screen unevenly lit.

‌Structural design‌

Wide temperature screens improve durability by strengthening sealing processes and heat-resistant deformation materials (such as high-temperature resistant polarizers); in addition, wide temperature screens will bind IC and FPC with low-temperature ACF.

3. Display performance

‌Environmental adaptability‌

Wide temperature screens can still maintain high brightness (some models can reach more than 1000nit), stable color reproduction and contrast at extreme temperatures, while ordinary screens may experience brightness attenuation or blurred display.

‌Response time‌

Wide temperature screens reduce the impact of temperature on response time by optimizing the drive circuit to ensure smooth dynamic image display in industrial scenes.

4. Reliability and cost

‌Lifespan and reliability‌

Wide temperature screens are usually designed to last more than 50,000 hours, and have enhanced features such as anti-electromagnetic interference and anti-vibration, making them more suitable for long-term use in harsh environments.

‌Cost Difference‌

Due to the complexity of materials and processes, the cost of wide temperature screens is 30%~50% higher than that of ordinary screens.

5. Application scenarios

‌Wide temperature screen‌: Mainly used in extreme environments such as industrial control, automotive instruments, aerospace, outdoor equipment, etc.

‌Ordinary screen‌: Suitable for temperature control and stable scenarios such as commercial display and consumer electronics.

      Through comprehensive optimization of materials, processes and designs, wide temperature LCD screens are significantly superior to ordinary LCD screens in extreme temperature stability, environmental adaptability and long-term reliability, but their cost and volume are also correspondingly higher. Shenzhen Hongjia Technology has 12 years of industry experience, specializing in the production and sales of 1.14-10.4-inch display screens and matching touch screens, with ordinary screens and wide temperature LCD screens of various sizes, serving many Fortune 500 companies. Customers are welcome to email for consultation.