Condition 4

The TFT has not changed more than 20°C (36°F) during the following conditions:

• The TFT temperature at start up is -50°C (-58°F) for 2500 seconds (41.6 minutes).
• The TFT temperature at start up is -25°C (-13°F) for 1000 seconds (16.6 minutes).
• The TFT temperature at start up is -10°C (14°F) for 800 seconds (13.3 minutes).
• The TFT temperature at start up is -5°C (23°F) for 520 seconds (8.6 minutes).
• The TFT temperature at start up is 20°C (68°F) for 200 seconds (3.3 minutes).