Abstract: To directly and clearly observe the state inside a melting chamber in an electric furnace, a video-device-equipped electric furnace comprises: a melting chamber; a preheating chamber; and a video device to observe an inside of the melting chamber. The video device includes: a relay lens; an inner tube containing the relay lens and having an outer diameter of 100 mm or less; an outer tube containing the inner tube; and an imaging device located at an axial end of the relay lens on a furnace outside. The video device is provided through a hole in a furnace wall or lid so that the relay lens is located 300 mm to 3500 mm away from a highest molten iron interface in a vertically upward direction and the imaging device is located 300 mm or more away from an inner wall of the furnace wall or lid in a furnace outward direction.

Abstract: To clearly observe the inside of a furnace where an object is heated by a burner. The burner includes: a lens; an imaging device; and a multiple pipe structure including: an inner pipe that surrounds the lens; an outer pipe that surrounds the inner pipe, separated from the inner pipe by a lens coolant passage; a gaseous fuel pipe radially outward of the outer pipe and operable to inject gaseous fuel; a combustion-supporting gas pipe radially outward of the outer pipe and operable to inject combustion-supporting gas; and a cooling pipe outermost in the multiple pipe structure that surrounds the gaseous fuel pipe and the combustion-supporting gas pipe.

Abstract: To reduce production costs by increasing molten iron heating efficiency, a production method using an electric furnace is provided with a preheating chamber, a melting chamber, a cold iron source supporter operable to partition the preheating chamber into a first and a second preheating chamber, an extruder, and a video device operable to observe the second preheating chamber is used, the method including a melting process, a heating process, a preheating process, and a tapping process are performed. In the heating process, heating of the molten iron is started after the cold iron source supporter is closed, and based on the visual information obtained via the video device of the second preheating chamber.

Abstract: To ensure stable supply of a cold iron source to a melting chamber, a method of producing molten iron uses an electric furnace that includes: a preheating chamber; a melting chamber; an extruder located in the preheating chamber; and a video device configured to observe an inside of the melting chamber, and comprises: an extrusion process of supplying a cold iron source preheated in the preheating chamber to the melting chamber by the extruder; and a melting process of melting the cold iron source supplied to the melting chamber by arc heat to obtain molten iron, wherein in the extrusion process, a moving amount of the extruder and/or a time interval for moving the extruder is controlled based on visual information obtained from the video device.

Abstract: The present invention provides a heat sink unit that has a small mounting area and high radiating efficiency without breaking or damaging the IC package. The heat sink unit includes a base, a heat sink, a unit base, a heat sink mount, a frame member, a first lever, and a second lever. When the frame member 6 reaches a confronting position, further rocking is restricted, the heat sink mount supported by the frame member moves downward, and the end surface of the heat sink supported by the heat sink mount comes into contact with the IC package.

Abstract: A display device and a method of driving the same. Overlap driving of overlapping subpixels, and fake data insertion driving of inserting a fake image, different from real images, into every line of a plurality of lines, are performed, thereby improving image quality.

Abstract: The present disclosure describes a driver circuit, a light-emitting display device, and a driving method. Even in the case that other video control driving, e.g., fake data insertion driving, is performed during sensing driving, the sensing is not influenced by the other video control driving, e.g., fake data insertion driving. Sensing errors are prevented, and image quality is improved.

Abstract: The present disclosure describes a driver circuit, a light-emitting display device, and a driving method. Even in the case that other video control driving, e.g., fake data insertion driving, is performed during sensing driving, the sensing is not influenced by the other video control driving, e.g., fake data insertion driving. Sensing errors are prevented, and image quality is improved.

Abstract: A display device and a method of driving the same. Overlap driving of overlapping subpixels, and fake data insertion driving of inserting a fake image, different from real images, into every line of a plurality of lines, are performed, thereby improving image quality.

Abstract: An OLED display device includes an OLED display panel on which subpixels are disposed, a gamma reference voltage supply circuit supplying gamma reference voltages that are variable during driving and when sensing a threshold voltage, and a data driver supplying data voltages based on the gamma reference voltages to data lines. The data driver senses a voltage of a sensing node within each of the subpixels in sensing mode. A timing controller controls the data driver, and performs a compensation process based on the voltage sensed by the data driver.

Abstract: Checking failures in transistors including driving transistors, switching transistors, and sampling transistors before light emitting elements are formed in a display device. I-V characteristics including threshold voltage of the driving transistor 10C in one pixel circuit can be detected. In a pixel circuit, the sampling transistor 10A and switching transistor 10D are made conductive and the signal potential is given to the gate electrode of the driving transistor 10C from the signal line DTCm. At this time, the current which flows between the drain electrode and source electrode of driving transistor 10C flows through the switching transistor 10D and a reference potential line Vref_r to a test point, and is measured by a current measuring device connected to the test point.

Abstract: An OLED display device includes an OLED display panel on which subpixels are disposed, a gamma reference voltage supply circuit supplying gamma reference voltages that are variable during driving and when sensing a threshold voltage, and a data driver supplying data voltages based on the gamma reference voltages to data lines. The data driver senses a voltage of a sensing node within each of the subpixels in sensing mode. A timing controller controls the data driver, and performs a compensation process based on the voltage sensed by the data driver.

Abstract: Checking failures in transistors including driving transistors, switching transistors, and sampling transistors before light emitting elements are formed in a display device. I-V characteristics including threshold voltage of the driving transistor 10C in one pixel circuit can be detected. In a pixel circuit, the sampling transistor 10A and switching transistor 10D are made conductive and the signal potential is given to the gate electrode of the driving transistor 10C from the signal line DTCm. At this time, the current which flows between the drain electrode and source electrode of driving transistor 10C flows through the switching transistor 10D and a reference potential line Vref_r to a test point, and is measured by a current measuring device connected to the test point.

Abstract: Compensate for the variations of threshold voltage of a driving transistor. During the period of the reference signal voltage Vref being set to the signal line DTC, voltage between the gate and source of the driving transistor 10C is made equal to or greater than the threshold voltage of the driving transistor 10C, and the difference in voltage of the reference signal voltage Vref and the reference power supply voltage Vref_r is charged to the retentive capacitance 10B. At the same time, the voltage of the source of the said driving transistor 10C is set to the reference power supply voltage Vref_r to make the voltage applied to the light emitting element 10E equal to or lower than its threshold voltage, a voltage corresponding to the threshold voltage of the driving transistor 10C is held in the retentive capacitance 10B.

Abstract: To compensate for a change of light emission intensity caused by deterioration of a light emitting element, provided is a display device including a drive element (T1) which controls a drive current to be supplied to a light emitting element (EL) in accordance with a data signal representing a target luminance of the light emitting element (EL). The light emitting element (EL) emits light in accordance with a current flowing through the light emitting element (EL). The data signal is corrected in accordance with a voltage applied at both terminals of the light emitting element (EL) so that the drive current to be supplied to the light emitting element (EL) increases with an increase in an amount of a voltage drop of the light emitting element (EL).

Abstract: A display device in which a plurality of pixels are arranged in a matrix form, corresponding to intersections of a plurality of data lines and a plurality of scan lines, wherein each pixel includes a light emitting element having a first electrode connected to a first power supply and which emits light according to a current that flows; a driving transistor having a source electrode connected to a second power supply and which supplies a drain current to a second electrode of the light emitting element; a data storage capacitor having a first electrode connected to a gate electrode of the driving transistor; and a first switch which is switched ON during a pixel selection period so that data of a data line is written to the data storage capacitor, and wherein a potential of a second electrode of the data storage capacitor is changed.

Abstract: In each pixel, a current-driven type light emitting element OLED, and a driving element T1 which controls an electric current to be supplied to the light emitting element in accordance with a data signal representing a target brightness, are provided. The mutual conductance of the driving element T1, or a parameter reflecting the mutual conductance, is detected, and the data signal to be supplied to the driving element is corrected in accordance with a detection result. More specifically, the data signal is corrected such that a driving current to be supplied to the light emitting element in accordance with the data signal increases as the mutual conductance of the driving element T1 decreases.

Abstract: [Problem to be solved] To achieve low power consumption. [Solution] The driving transistor T1 supplies driving current from the power supply VDD to the organic EL elements OLED. The source end of the driving transistor T1 connected to one end of the said organic EL elements OLED, the other end of the organic EL elements OLED is connected to the power supply potential Vss, and the mutual conductance per display unit area of the said organic EL elements of the said driving transistor is equal to or higher than 1×10?11 (A/V2/m2).

Abstract: Compensate for the variations of threshold voltage of a driving transistor. During the period of the reference signal voltage Vref being set to the signal line DTC, voltage between the gate and source of the driving transistor IOC is made equal to or greater than the threshold voltage of the driving transistor IOC, and the difference in voltage of the reference signal voltage Vref and the reference power supply voltage VreCr is charged to the retentive capacitance IOB. At the same time, the voltage of the source of the said driving transistor IOC is set to the reference power supply voltage VreCr to make the voltage applied to the said light emitting elements equal to or lower than its threshold voltage. Subsequently, while maintaining the voltage applied to the said light emitting elements IOE equal to or lower than its threshold voltage.

Abstract: To efficiently compensate a threshold value of a driving transistor. In a state where a first switching transistor is non-conductive and a second switching transistor in conductive, a sampling transistor is made conductive and a reference voltage is supplied from a signal line to write a threshold voltage of a driving transistor to a first capacitance. After that, in a state where first and second switching transistors and are non-conductive, the sampling transistor is made conductive and a signal voltage from the signal line is written to the first capacitance. Further, after that the sampling transistor is put into a non-conductive state, and the first and second switching transistors are put in a conductive state, to drive the driving transistor and supply current to a light emitting element.