Why can't the working temperature of the LCD screen reach 90 ° C?

Date:2024-10-11

      The operating temperature range of LCD screens has a significant impact on their performance. The liquid crystal material in the LCD screen exhibits different physical properties at different temperatures, which directly affects the display effect and stability of the screen. Here are some reasons why the working temperature of LCD screens cannot reach 90 ° C:

     1. Physical properties of liquid crystal materials: Liquid crystal materials may lose their liquid crystal phase at high temperatures, causing them to malfunction. The molecular structure of liquid crystal materials may undergo changes at high temperatures, affecting their optical properties and electro-optic effects, thereby affecting display performance.

     2. The impact of backlight system: LCD screens usually require a backlight system to provide a light source. At high temperatures, the backlight system may fail, causing the screen to not display properly. Especially cold cathode fluorescent lamp (CCFL) backlight may be damaged at high temperatures.

     3. Temperature resistance limit of electronic components: The electronic components inside the LCD screen, such as driver ICs, control circuits, etc., all have their own temperature resistance limits. Beyond their operating temperature range, these components may be damaged or fail.

     4. Temperature resistance of sealing and bonding materials: The sealing and bonding materials of LCD screens may lose their adhesion or sealing properties at high temperatures, leading to damage to the screen structure.

     5. The influence of temperature on response time: In high temperature environments, the response time of liquid crystal molecules may increase, leading to a decrease in screen refresh rate and affecting the display quality of dynamic images.

     6. Shortened lifespan: Long term operation at high temperatures can accelerate the aging process of LCD screens and their components, shortening their service life.

     7. Color distortion: High temperatures may cause inaccurate color display on LCD screens, affecting image quality.

     Therefore, the operating temperature range of LCD screens is usually designed to be a wide but limited range to ensure stable operation under various environmental conditions. If a LCD screen needs to be used at higher temperatures, special design and materials may be required to improve its temperature resistance.

Wide temperature LCD screen：https://www.auo-lcd.com/products/auo-lcd-screen/

• Latest News
• How should the heat dissipation design of LCD screens be optimized in high-tempe10-16
• What specific damages can LCD screens cause at extreme temperatures?10-12
• Why can't the working temperature of the LCD screen reach 90 ° C?10-11
• Besides hardware malfunctions, what other reasons could cause color loss on LCD 09-18
• What are the resolutions of a 7-inch LCD screen?09-12
• What are the resolutions of a 6.5-inch LCD screen?09-09