Introduction of LCD Heater

LCD heaters consist of a conductive transparent film with parallel busbars screen printed at the edge of the film. Wires are then attached to the busbars to provide an electrical connection. These heaters can be supplied with an optical grade adhesive and back-laminated for easy mounting on the front or back of an LCD display. Power is applied to the busbars through the wires to produce a uniform heated surface. The maximum power recommended is 1.0 W/in2. (Power is dependent on input voltage, surface resistivity, and heater geometry) Typical operating temperatures for TN LCDs are -30°C to 80°C. For STN LCDs, the operating temperature is -20°C to 80°C. With LCD heaters, the LCD operating temperature can be extended to -55°C to 90°C. Adding an LCD heater will greatly improve the performance of the LCD at low temperatures. Typical applications: Avionics displays, ruggedized electronics, portable military radios, handheld terminals, outdoor card readers, environmental chamber defogging windows, gas pumps, parking meters, heated microscope stages.

Composition and working principle of customized LCD heater

Heating element:

Materials: Usually resistance wire, carbon fiber or PTC (positive temperature coefficient) materials are used, which can generate heat when powered.

Placement: The heating elements are usually evenly distributed on the back or around the LCD screen to ensure uniform heating.

Temperature Sensor:

Function: Real-time monitoring of the temperature of the LCD screen to ensure that the heater works within the set temperature range.

Type: Common temperature sensors include thermistors and thermocouples.

Temperature Controller:

Function: Adjust the power of the heating element according to the data of the temperature sensor to maintain a constant temperature.

Features: You can set the upper and lower temperature limits, automatically adjust the heating intensity, and prevent overheating.

Insulation and protective cover:

Insulation: Prevents electrical shorts and ensures safety.

Protective cover: Usually made of a material that conducts heat well (such as aluminum), it protects the heating element and ensures even heat dissipation.

Advantages of Customized LCD Heaters

Ensure LCD screen performance:

In low temperature environments, maintain the normal operating temperature of the LCD screen to prevent slow response and screen freezing.

Extend the life of the display:

Avoid low temperature damage to liquid crystal and its electronic components and extend the service life of the equipment.

Improve user experience:

In outdoor or cold environments, it provides stable display effects and improves the user's operating experience.

Energy-saving and high efficiency:

Through the intelligent temperature control system, efficient heating can be achieved and energy consumption can be reduced.

Application of Customized Liquid Crystal Heater

Outdoor advertising display:

Ensure that outdoor billboards can display advertising content normally in winter or cold areas.

Traffic information display screen:

Information display screens in transportation systems such as roads and railways provide stable real-time information.

Industrial control display:

In factories or warehouses with low temperature environments, ensure the normal operation of monitoring and operation displays.

Military and aviation displays:

Display equipment used in harsh environments, such as military command systems and aircraft cockpit displays.

Design Considerations for Custom LCD Heaters

Power requirements:

Determine the power requirements of the heater based on the size of the LCD screen and the operating environment temperature.

Temperature Control Accuracy:

Ensure that the temperature sensor and controller can accurately control the temperature of the heater to prevent overheating or uneven heating.

Installation method:

The structure is designed to be easy to install and maintain, ensuring close contact and good heat conduction between the heater and the LCD screen.

safety:

Ensure the electrical safety of the heater, prevent short circuit and overheating protection, and ensure safe use.

Environmental adaptability:

Consider the use requirements of the heater in different environments, such as waterproof, dustproof, and shockproof design to adapt to outdoor and harsh environments.

Customized LCD heaters are key equipment to ensure that LCD screens work properly in low temperature environments. Through customized design, heaters can meet the power needs and installation requirements of specific displays, improving equipment reliability and user experience. Whether it is used for outdoor advertising, traffic information, industrial control or military and aviation display equipment, our professional team can provide you with comprehensive design support and customized solutions to ensure that your LCD screen can operate stably in any environment.

Hot Display After repeated experiments, combined with LCD heaters and adjusted the type and ratio of LCDs, our products can adapt to ultra-low temperature environments, with the lowest operating temperature reaching -40 degrees Celsius.

Customized ultra-low temperature -40°C LCD display (link)

For more ultra-low temperature products, please contact us!