Patent ID: 8011592
Filing Date: 2011-09-06
Classification: G01K,G06K,G09G

Abstract:
1. A display module in an IC card, the display module comprising: a temperature sensor configured to provide temperature information; a transmission interface, coupled to an external chip of the IC card; a processing module, coupled to the temperature sensor and the transmission interface, the processing module comprising: a storage device comprising an application software program; and a processing unit, coupled to the storage device, configured to execute the application software program to access data from the external chip via the transmission interface, to obtain the temperature information from the temperature sensor, and to output a control signal according to the temperature information and data; a display driver, coupled to the processing module, configured to receive the control signal and to generate a display driving signal according to the control signal; and a display film configured to display images, coupled to the display driver, and configured to display information according to the display driving signal wherein the display module is configured to perform, based on the temperature information, a temperature compensation operation on the display driving signal that increases contrast of the images on the display film; wherein the application software program comprises an OTP (one time password) software program and a displaying application software program, and wherein the processing unit is configured to execute the OTP software program and the displaying application software program to obtain an OTP key and to convert the OTP key or external information into the control signal according to the temperature information generated by the temperature sensor.