Abstract: A display device may include a display area for displaying an image. The display device may further include a peripheral area that surrounds the display area. The display device may further include a pixel disposed in the display area. The display device may further include a bus line disposed in the peripheral area and configured to transmit a signal. The display device may further include a connection conductor set electrically connected to the bus line. The display device may further include a branch line electrically connected to the connection conductor set, configured to receive the signal from the bus line, and configured to transmit the signal to the pixel, wherein a portion of the branch line is disposed in the display area.

Abstract: A display device includes: a plurality of pixels, each of the pixels including: a switching transistor; a relay transistor; a first capacitor; a driving transistor; and an organic light emitting diode (OLED). The OLED emits light according to a driving current from a first power source voltage, and a light emitting period for the OLED is one of a first light emitting period that is not temporally overlapped with a scan period in which data are written to the pixels or a second light emitting period that is temporally overlapped with the scan period. A duty of the light emitting period is controlled by controlling a time when a second power source voltage is applied as a low level voltage within the first light emitting period or controlling a time when the second power source voltage is applied as a low level voltage within the second light emitting period.

Abstract: A display device and a method of driving the same in which moving image blurring is prevented and a contrast ratio is enhanced by providing a light-emitting element, switching transistors, and a driving transistor with driving signals that include specific voltages at predetermined times, so that the light-emitting element does not emit light for an entire frame and the light output is not influenced by a threshold voltage of the driving transistor.

Abstract: A method of notifying status information and an image forming apparatus using the same. The method of notifying status information includes setting a display attribute of status information of the image forming apparatus, if status information of the image forming apparatus is updated, generating status notification information in a first format or a second format according to whether a display attribute is set for the updated status information, and transmitting the generated status notification information. Accordingly, a user is notified of error occurrence in a manner as he/she wishes.

Abstract: In a display device, the anode voltage of an organic light emitting element is periodically reset. The control terminal of a driving transistor is periodically reset, and an input data voltage is connected to the control terminal through an input terminal and an output terminal of the driving transistor. As a result, good control over the displayed luminance is achieved. Other features are also provided.

Abstract: A stage circuit includes a progressive driver and a concurrent driver, and a scan driver includes a plurality of stage circuits that are capable of supplying a scan signal to scan lines progressively and concurrently (e.g., simultaneously).

Abstract: A pixel capable of displaying an image with uniform brightness. The pixel includes an organic light emitting diode (OLED), a first transistor for controlling an amount of current that flows from a first power source to a second power source via the OLED, and a second transistor coupled between a gate electrode of the first transistor and a bias power source, and configured to be turned on when a reset signal is supplied to a reset line, wherein a turn on time of the second transistor is configured to apply the bias power source to the gate electrode of the first transistor for at least 560 ?s.

Abstract: An organic light emitting display device operates for an initializing period, a scan period and an emission period divided from one frame period. The organic light emitting display device includes: a data driver for supplying data signals to output lines; a connecting unit for selectively coupling a data line of data lines to a corresponding one of the output lines or an initial power supply, and being positioned between the output lines and the data lines; a second power driver for applying second power having a low level and a high level to pixels positioned at crossing regions of scan lines and the data lines; and a first control line commonly coupled to the pixels, in which each of the pixels includes an organic light emitting diode, and an anode electrode of the organic light emitting diode is supplied with a voltage of the initial power supply for the initializing period.

Abstract: A display device according to the present invention includes: a display unit including a plurality of pixels coupled to a plurality of scan lines; a plurality of scan driving blocks coupled to the plurality of scan lines and adapted to apply a plurality of scan signals; an electrostatic discharge (ESD) unit adapted to protect the plurality of scan driving blocks from static charges; an AC power source unit for supplying a first power source voltage of which a level is changed between a logic high level and a logic low level, to the plurality of scan driving blocks through a first power source voltage wire during a pixel test of the plurality of pixels; and a DC power source unit for supplying a second power source voltage of the logic high level to the ESD unit through a second power source voltage wire.

Abstract: A display device and a method of driving the same in which moving image blurring is prevented and a contrast ratio is enhanced by providing a light-emitting element, switching transistors, and a driving transistor with driving signals that include specific voltages at predetermined times, so that the light-emitting element does not emit light for an entire frame and the light output is not influenced by a threshold voltage of the driving transistor.

Abstract: A detection circuit, including a sensing circuit configured to sense whether there is an external attack and generate second data from first data, a data conversion circuit configured to convert the first data to third data, and a comparator configured to compare the second data with the third data.

Abstract: A display device and a method of driving the same in which moving image blurring is prevented and a contrast ratio is enhanced by providing a light-emitting element, switching transistors, and a driving transistor with driving signals that include specific voltages at predetermined times, so that the light-emitting element does not emit light for an entire frame and the light output is not influenced by a threshold voltage of the driving transistor.

Abstract: A display device includes a plurality of scan lines and a scan driver. The scan driver includes a plurality of stages for transmitting a scan signal having a first voltage to the plurality of scan lines, and each of the stages includes a sequential switching unit, a sequential output unit, a concurrent switching unit, and a concurrent output unit. The concurrent output unit includes a first transistor for transmitting a second control signal to the output terminal according to a first control signal during a concurrent driving period before the scan signal is converted from a first level to a second level according to the second control signal, and a gate voltage of the first transistor is controlled by a voltage that is different from the first voltage according to the first control signal.

Abstract: A display device and a method of driving the same in which moving image blurring is prevented and a contrast ratio is enhanced by providing a light-emitting element, switching transistors, and a driving transistor with driving signals that include specific voltages at predetermined times, so that the light-emitting element does not emit light for an entire frame and the light output is not influenced by a threshold voltage of the driving transistor.

Abstract: A display device and a driving method thereof. The display device includes a plurality of pixels arranged in a matrix. Each pixel includes a light-emitting element, a driving transistor including an input terminal connected to a first node, a control terminal connected to a second node, and an output terminal, a capacitor connected between the second node and a driving voltage terminal, a switching transistor to transmit a data voltage to the first node, an emission control transistor connected between the output terminal of the driving transistor and the light-emitting element, a first compensation transistor connected between the second node and the output terminal of the driving transistor, a second compensation transistor to transmit a mobility compensation voltage to the first node, a driving control transistor to transmit a driving voltage to the first node, and a reset transistor to transmit a reset voltage to the emission control transistor.

Abstract: A scan driving apparatus, includes scan driving blocks, each including a first and a second input terminal where a frame start or a scan signal of an adjacent scan driving block is input during forward and backward direction driving, respectively, wherein each of the scan driving blocks transmits a first scan direction signal instructing forward scan driving to a first transistor adjusting a clock signal in accordance with a signal input to the first input terminal, transmits a second scan direction signal instructing backward scan driving to the first transistor in accordance with a signal input to the second input terminal, and outputs the clock signal as a corresponding scan signal, the even numbered ones of the scan driving blocks receive a first clock signal as the clock signal, the odd numbered ones of the scan driving blocks receive a second clock signal as the clock signal.

Abstract: A pixel circuit includes an OLED having a cathode coupled to a power source voltage, a first transistor having a second electrode coupled to an anode of the OLED, and a gate electrode coupled to a gate control-line, a second transistor having a second electrode coupled to a first electrode of the first transistor, a third transistor having a first electrode coupled to another power source voltage, a second electrode coupled to a first electrode of the second transistor, and a gate electrode coupled to a gate control-line, a fourth transistor having a first electrode coupled to a gate electrode of the second transistor, a second electrode coupled to the anode of the OLED, and a gate electrode coupled to a scan-line, and a capacitor coupled between the gate electrode of the second transistor and the second electrode of the third transistor.

Abstract: A method of controlling job authority of an image forming apparatus that supports a P2P connection includes: storing a profile of a wireless device that is P2P connected to the image forming apparatus in the image forming apparatus; receiving and storing job authority information corresponding to the profile; when the wireless device requests the image forming apparatus to execute an operation, setting a job authority of the wireless device by using the profile and the job authority information; and checking the job authority of the wireless device by the image forming apparatus, and executing the requested job when the wireless device has the authority to perform the requested job.

Abstract: In a display device, the anode voltage of an organic light emitting element is periodically reset. The control terminal of a driving transistor is periodically reset, and an input data voltage is connected to the control terminal through an input terminal and an output terminal of the driving transistor. As a result, good control over the displayed luminance is achieved. Other features are also provided.

Abstract: Embodiments may provide a scan driver including a plurality of stages for simultaneously outputting first scan signals in a simultaneous driving period and for progressively outputting second scan signals in a progressive driving period, wherein each of the stages includes a first signal processing unit coupled to an input terminal, a first clock terminal, a third clock terminal, an auxiliary terminal, a first power source terminal, and a second power source terminal to output a first output signal and a second output signal, and a second signal processing unit coupled to a second clock terminal and the first power source terminal to receive the first output signal and the second output signal and to output a first scan signal and a second scan signal to an output terminal.