Abstract: A display, a method for controlling the display, and a display system are provided. The method for controlling the display includes the following steps. analyzing an image after receiving image information to determine whether there is at least one object in the image; obtaining a block corresponding to each object in each of multiple frames of the image, and identifying object information in each block, wherein the object information includes an object type, reference point coordinates, and a frame time; obtaining a number of a target object according to the object type; calculating a moving speed of each target object according to the frame time and the reference point coordinates; and controlling brightness of a light source of the display according to the number and the moving speed. The disclosure can dynamically adjust the brightness of the light source according to different conditions.

Abstract: A display, a method for controlling the display, and a display system are provided. The method for controlling the display includes the following steps. analyzing an image after receiving image information to determine whether there is at least one object in the image; obtaining a block corresponding to each object in each of multiple frames of the image, and identifying object information in each block, wherein the object information includes an object type, reference point coordinates, and a frame time; obtaining a number of a target object according to the object type; calculating a moving speed of each target object according to the frame time and the reference point coordinates; and controlling brightness of a light source of the display according to the number and the moving speed. The disclosure can dynamically adjust the brightness of the light source according to different conditions.

Abstract: An identification protection card is an identification card and includes a card body. The card body consists of a shielding metal sheet and two hard insulating protective layers configured to cover upper and lower surfaces of the shielding metal sheet. The card body is sized relative to an international standard chip card. A surface of at least one of the protective layers is printed with a logo, totem or character. When a chip card is inserted into a card compartment of a wallet, the identification card is placed close to one side of the chip card, thereby providing a shielding effect for the chip card. This effectively blocks the transmission and reception of electronic signals or electromagnetic waves outside the wallet, preventing the data of the chip card from being recorded.

Abstract: An RFID protection and low frequency signal isolation sheet for a folding wallet has a metal interlayer. Upper surface and the lower surface of the metal interlayer are covered with protective layers to form an RFID protection folding sheet. The RFID protection folding sheet is inserted into a cash compartment of a folding wallet. The RFID protection folding sheet has a length slightly less than that of the cash compartment. The RFID protection folding sheet has a width slightly less than a depth of the cash compartment. The RFID protection folding sheet is placed into the cash compartment and located at an inner edge close to an outer layer of the folding wallet. By folding the folding wallet, the RFID protection folding sheet forms the peripheral protection of the folding wallet, and the data of the electronic chips (RFID) of cards inside the folding wallet is blocked.