The present disclosure relates to a technique for implementing haptic surfaces in the payment cards to facilitate convenient operation by visually impaired users. The technique involves embedding a suitable power source on the payment card and storing the electrical energy from the power source within the card such that whenever the power button is switched ON, the electrical energy flows from the stored source to the haptic surface enabled digits embedded on the payment card so as to bubble-out the haptic surface enabled digits. These bubbled-out digits may be easily read by the cardholder by touching the popped-up surface. When the electrical current stops, the bubbled-out surface deflates and goes flat. This ensures the convenient and effective reading of card details by the cardholder while ensuring financial security and privacy of the user.

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This work is licensed under a Creative Commons Attribution 4.0 License.