Abstract: An information management method, a device, a system and a medium. The information management method applied to a first terminal, including: sending an information acquisition request to a server, so that the server responds to the information acquisition request and sends visitor information to the first terminal; receiving the visitor information sent by the server; generating card information according to the visitor information; and sending the card information to an electronic card, so that the electronic card displays the card information.

Abstract: A pixel structure, an array substrate, a display panel and a display device. The pixel structure includes a gate line (10), a data line (20), a gate (30), a first electrode (40), a second electrode (50), and a third electrode (60); the gate (30) is connected to the gate line (10); the first electrode (40) is connected to the data line (20); and the second electrode (50) has a first portion and a second portion that are distributed in the extending direction of the second electrode, wherein the first portion of the second electrode (50) cooperates with the first electrode (40) and the gate (30) to form a first thin film transistor, and the second portion of the second electrode (50) cooperates with the third electrode (60) and the gate (30) to form a second thin film transistor.

Abstract: An online system receives information about a first transaction including a destination account identifier and a payment amount from a source computing device. The online system sends the source computing device a deep link to a second application. The online system receives a confirmation including a transaction identifier from the second application. The payment was sent to an intermediate payment processor, which records the first transaction in a ledger in association with a source account identifier. The online system receives an instruction to reverse the first transaction. The online system sends an instruction to generate a second transaction to a source account of the source computing device including the transaction identifier and not the source account identifier to the intermediate payment processor. The online system receives a confirmation of the second transaction, where the intermediate payment processor queried the ledger using the transaction identifier to identify the source account.

Abstract: An online system receives information about a first transaction including a destination account identifier and a payment amount from a source computing device. The online system sends the source computing device a deep link to a second application. The online system receives a confirmation including a transaction identifier from the second application. The payment was sent to an intermediate payment processor, which records the first transaction in a ledger in association with a source account identifier. The online system receives an instruction to reverse the first transaction. The online system sends an instruction to generate a second transaction to a source account of the source computing device including the transaction identifier and not the source account identifier to the intermediate payment processor. The online system receives a confirmation of the second transaction, where the intermediate payment processor queried the ledger using the transaction identifier to identify the source account.