Abstract: A scan driver includes: a first transistor having a first electrode coupled to an output scan line, a second electrode coupled to a first power line, and a gate electrode coupled to a first node; a second transistor having a first electrode coupled to a first clock line, a second electrode coupled to the output scan line, and a gate electrode coupled to a second node; a third transistor having a first electrode coupled to the first node, a second electrode coupled to a first input scan line, and a gate electrode coupled to a second clock line; and a fourth transistor having a first electrode coupled to the second node and a second electrode and a gate electrode, which are coupled to a second input scan line, wherein the first input scan line and the second input scan line are different from each other.

Abstract: A system and method for recognition of biometric information for a shared vehicle in which data exposure is prevented which may otherwise occur when using a biometric recognition function in a shared vehicle or autonomous driving vehicle in a shared environment. The system and method may be associated with an AI device, a drone, an UAV, a robot, an AR device, a VR device, and a 5G service.

Abstract: A user authentication device and method for providing a security level varying based on an authentication score of biometric information when providing an authentication-based service in an autonomous driving vehicle. The device and method may be associated with an AI device, a drone, an UAV, a robot, an AR device, a VR device, and a 5G service.

Abstract: Provided are user authentication devices and methods for triggering a user-specific target operation in which when a user is authenticated using biometric information in an autonomous driving vehicle, each user-specific target operation registered for each individual is provided and selected in a biometric authentication process. The device and method may be associated with an AI device, a drone, an UAV, a robot, an AR device, a VR device, and a 5G service.

Abstract: A user authentication device and method for providing a security level varying based on an authentication score of biometric information when providing an authentication-based service in an autonomous driving vehicle. The device and method may be associated with an AI device, a drone, an UAV, a robot, an AR device, a VR device, and a 5G service.

Abstract: A system and method for recognition of biometric information for a shared vehicle in which data exposure is prevented which may otherwise occur when using a biometric recognition function in a shared vehicle or autonomous driving vehicle in a shared environment. The system and method may be associated with an AI device, a drone, an UAV, a robot, an AR device, a VR device, and a 5G service.

Abstract: A method and apparatus for controlling an exposure and preventing reverse charge in a printer of an electrophotographic developing system. A method for preventing reverse charge comprises the steps of: starting print paper feeding, turning on a charge unit, a register sensor and an exposing unit, and checking if the top of a paper reaches a transfer unit; if the top of the paper reaches the transfer unit, turning on the transfer unit; checking if the register sensor is turned off; if the register sensor is turned off, checking if it is time the bottom of the paper reaches the transfer unit; and if the time elapses, turning off the transfer unit, performing fusing, and turning off the charge unit.