Hyundai Motor Company

Samsung Display Co., Ltd.

Chang-hyun Shin

Joo-Seok Yeom

Hong-Suk Choi

The present invention provides a liquid crystal display comprising a pixel electrode comprising a first sub-pixel electrode, a second sub-pixel electrode and a third sub-pixel electrode, separated from each other; a first thin film transistor connected to the first sub-pixel electrode; a second thin film transistor connected to the second sub-pixel electrode; a gate line connected to the first thin film transistor and the second thin film transistor; a data line, insulated from and crossing the gate line, connected to the first thin film transistor and the second thin film transistor; and a first storage line, parallel with the gate line, extending across the first sub-pixel electrode, wherein the first and second thin film transistors comprise a gate electrode connected to the gate line, a source electrode connected to the data line and a drain electrode connected to the first sub-pixel electrode and the second sub-pixel electrode respectively, and the drain electrode of the first or second thin film transistor overlaps with the third sub-pixel electrode.

Liquid crystal display

A method for diagnosing a Liquefied Petroleum Injection fuel pump includes the steps of: inputting an engine Revolutions Per Minute (RPM) and a fuel pump Pulse Width Modulation (PWM) signal into an Electronic Control Unit (ECU) of an interface box; determining whether the RPM indicates that the engine is idling; if the engine is not idling, setting a diagnosis time of the PWM signal to a duration longer than the time the engine takes to deactivate after turning off an LPG switch; determining the operation state of the fuel pump by analyzing the PWM signal; and illuminating a warning lamp if the fuel pump is detected to be operating abnormally or a signal line connecting the fuel pump and the interface box is detected to be disconnected.

Diagnosis method for liquefied petroleum injection fuel pump

A Liquefied Petroleum Injection (LPI) fuel pump diagnosis system for determining the operation state of a fuel pump by analyzing a signal inputted from a fuel pump driver of an LPG tank into an interface box, including a fuel pump relay that provides power to the fuel pump and cut-off solenoid valves, an LPG switch that allows a user to isolate the fuel supply, a voltage detector disposed in the interface box that detects a voltage between the LPG switch and the fuel pump relay by being connected to a signal line that connects the LPG switch and fuel pump relay, and an ECU of the interface box that determines whether a signal line connecting the fuel pump driver and interface box is disconnected by determining whether the LPG switch is on or off through analysis of the voltage detected via the voltage detector.

Growing community of inventors

Suwon-si, South Korea

Chang-hyun Shin