About security modules in card readers Main component Security module is one of the core components of card reader, its main function is to ensure the security of data transmission and processing. In modern smart devices, card readers are usually used to read media storing sensitive information such as smart cards, bank cards or ID cards, and the existence of…
The communication module in card reader is introduced Main component Card reader is a common data transmission device used to read the information in the storage media, and the communication module is one of the core components of the card reader, which is responsible for the transmission and interaction of data. The main function of the communication module is to…
Introduction to the power module in the card reader Main component The power module in the card reader is one of its core components, responsible for providing stable power support for the device. Usually, the power module uses efficient DC-DC (DC-DC) conversion technology to convert the external input voltage into the operating voltage required by the internal circuit of the…
Introduction to control circuit in card reader Main component As an important interface of modern information equipment, the control circuit is one of its core components. The control circuit is the key to realize the function of the card reader, which is mainly responsible for the data transmission and management between the card and the host. Typically, the control circuit…
Introduction of interface circuit in card reader Main component Card reader is a common electronic device, widely used in identity identification, payment terminals and data transmission scenarios. Among them, the interface circuit is the key part of data exchange and communication. The main function of the interface circuit is to complete the signal conversion and transmission between the card and…
Application of liquid crystal materials in display Main component Liquid crystal material is a substance with both liquid and crystal properties, which is widely used in modern display technology, especially in liquid crystal display (LCD). Its uniqueness comes from the controllability of the molecular arrangement: liquid crystal molecules are usually linear in shape and can change their orientation under the…
Application of transparent electrode in display Main component Transparent electrode is a kind of special material with good light transmittance and electrical conductivity, which is widely used in modern display technology. Its role is to conduct electricity without blocking light, thus achieving efficient power transmission and optical performance compatibility. The most common transparent electrode material is indium tin oxide (ITO),…
Introduction to oriented film in display Main component The orientation film is an important part of the LCD layer of the display, and its role is to provide an orderly arrangement of the liquid crystal molecules to achieve the orientation of the liquid crystal, so as to control the light transmission or blocking, forming a visible image. The oriented film…
About the color filter in the display Main component The color filter in the display is a key technology, which plays an important role in the image presentation. The main function of the color filter is to decompose the original single backlight into red, green and blue primary colors by selectively filtering certain wavelengths of light. The combination and adjustment…
About the black matrix in the display Main component Black Matrix is one of the important design elements in the display screen, which is mainly used in panel technologies such as liquid crystal display (LCD) and organic light-emitting diode display (OLED). It is a black coating or material that sits between pixels and is used to separate adjacent red, green,…