Introduction

1. Introduction Purpose • Discuss the influence of extreme temperatures on LCDs Objective • Review the effects of extreme temperatures on standard LCD displays • Discuss how Lumex’s new Extreme Temp LCD technology can improve efficiency and reliability for hostile environment applications • Outline the advantages of a single supplier resource for design integrity Content • 12 Pages Learning Time • 10 Minutes Welcome to the Lumex Extreme Temp LCD Technology training module. This module highlights details on Lumex’s new cutting-edge, high / low temperature LCD custom design technology, and the many advantages this technology provides when designing applications, specifically applications operating in a hostile ambient environment. A pioneer in the design and manufacture of user-interface technology for over 30 years, Lumex is a leader in standard, semi-custom and custom LCD display technology.

2. Select Technology Best Suited for your Environment There is a growing global demand for user interface technology that can perform in extreme cold and extreme heat conditions. Applications as diverse as military, freezer, gas pumps and fuel meters, non-automotive transport and non-climate controlled facilities require accurate displays able to perform consistently in even the most challenging of environments. LCDs designed into these types of applications must meet a host of demanding challenges, such as shock and vibration, varying lighting conditions and extreme temperature changes.

3. Influence of Extreme Temp on LCDs • Extreme temperature affects visual performance • LCDs tend to lighten up, bleach out or go dark in extreme temperatures The liquid crystal material in a standard LCD can be permanently damaged by extreme temperatures. The molecules within the LCD can form into solid crystals, and bubbles can form on the display.

4. Lumex InfoVue™ High/Low Temp LCD Technology Extreme conditions bring with them a unique set of engineering challenges. It can be hugely helpful to find a technology supplier who can not only provide the user interface component but also professional insights as to how to integrate this component into larger systems. Lumex has been successful in breaking through the barriers faced by design engineers, helping them reach new heights in developing user interface solutions that provide cost-savings, superior reliability, and enhanced visual performance in even the most challenging of environments.

5. Technology Drivers • Proprietary LCD fluid mixture -40°C to +85°C • Backlight available up to +100°C • Backlight brightness • High bright for increased night visibility • Not high power LEDs, reduces thermal management requirement • Thin profile, low power integrated heater In order for a display to work instantly and consistently within a hostile environment, several technologies need to be brought together to work in parallel to get the best performance. These include the liquid crystal mixture itself, the operating heat threshold of the backlight which can be prone to fail at high temperatures, the size and power draw of the heater for extreme cold temperatures and ultimately the capability of any supplier to integrate all of these technologies seamlessly. Lumex is able to bring all of these technologies together into a single integrated solution with either standard or custom displays.

6. How do we know it works? • Vibrated at 40G for six days • Constant cycling between -40°C to +100°C for full duration • 1 hour at max temp, 1 hour at min temp • Temp transition from high to low over 7-12 minutes Lumex‘s extreme temperature displays have been rigourously tested in order to ensure instant and consistent performance in the field. The test was designed to exceed the operating environment and ensure that the design would provide best in class performance in the field.

7. Additional Design Enhancements • Numeric displays, character modules and graphic modules up to 640 x 480 • English, simplified Chinese, Japanese and European font sets • TN, HTN, EBTN, STN, FSTN and DFSTN liquid crystal fluids • Various assembly technologies, including: chips on board, chip on glass, chip on tab • Backlight options: EL, CCFL, Edge Lit LED and Chips on Board • Adding in switches, keypads and indicator lamps • Various connection methods: pins, heat seal connector (HSC) flexible flat cable (FFC) or flexible printed circuit (FPC) to satisfy virtually any mounting configuration. Lumex can enhance any LCD product with a wide variety of design enhancements to achieve that unique point of difference and meet design engineer‘s needs.

8. Customer Demands Dictate Design For many customers, standard LCD product offerings can be the simple solution to what is often the greatest challenge to the most visible and important part of any design project—the user interface. Increasingly, product differentiation has become a critical element in creating a point of difference in today’s marketplace. More and more, customer demands are driving the need for unique displays.

9. A One-Stop Solution for LCD Designs • Discussions with Lumex’s Technical Design Specialists will help determine the criteria that best suits your design needs, including: • Layout • Display size • Liquid crystal fluid type • Voltage • Duty • Bias • Temperature • Backlighting • Drivers • Connection method • Packaging requirements Lumex has been supporting the full range of Industrial Control companies throughout the world for the last 30 years. Our customers are the global leaders and technology innovators of their market segments. Industrial control companies rely on Lumex to be able to supply a full breadth of optoelectronics and displays as well as identify opportunities to create feature-rich, high value solutions.

10. A One-Stop Solution for LCD Designs • Lumex product families • ･ Extreme Temp LCDs • ･ Higher Power LEDs • ･ SMT LEDs • ･ Through-Hole LEDs • ･ Infrared Devices • ･ LED Displays • ･ LED Arrays • ･ LED Backlights • ･ Monochromatic LCDs • ･ TFT Capacitative Touch LCDs Because use of optoelectronics is expanding rapidly in the industrial controls market, customers are also looking for a single supplier partner like Lumex to ease the burden of sourcing multiple vendors.

11. Benefits of a Single Supplier Partner • Breadth of products means reduced number of vendors • Leveraging Lumex’s design expertise reduces your engineering time • Testing multiple interacting systems means faster time to market • The newest technology means the most feature enhanced, high performance industrial controls solutions on the market Why do design engineers choose Lumex? Lumex has been supporting user-interface applications with leading technology longer and more consistently than anyone else in the industry. Lumex can be the single supplier for both standard, products as well as fully integrated engineered solutions.