Abstract:
A display device includes a substrate, at least one light emitting element and at least two driving arrays. The at least one light emitting element is disposed on the substrate, and the at least one light emitting element has a first terminal and a second terminal. The at least two driving arrays are disposed on the substrate, and one of the at least two driving arrays is electrically connected to the first terminal of the at least one light emitting element.
Abstract:
A driving device includes a pixel array, a controller and a driver. The driver has a plurality of driving devices. Each of the driving devices includes a plurality of transistors and at least one capacitor to drive a light emitting device. By controlling the timing scheme of control signals applied to the driving device, the voltage for driving the light emitting device would not be affected by threshold voltages of the transistors.
Abstract:
The present invention provides a scan driver and a display using the same. The scan driver includes multiple stages of driving units. The driving units are controlled by a start signal, a clock signal and at least one selection signal. The ith stage of the driving unit includes a shift register and a de-multiplexer. The shift register generates a scan signal according to the clock signal and a trigger signal. The de-multiplexer selectively outputs the scan signal to multiple scan lines according to the at least one selection signal. The trigger signal of the 1st stage of the driving unit is the start signal, and the trigger signal of the (i+1)th stage of the driving unit is the scan signal of the ith stage of the driving unit.
Abstract:
The present invention provides a scan driver and a display using the same. The scan driver includes multiple stages of driving units. The driving units are controlled by a start signal, a clock signal and at least one selection signal. The ith stage of the driving unit includes a shift register and a de-multiplexer. The shift register generates a scan signal according to the clock signal and a trigger signal. The de-multiplexer selectively outputs the scan signal to multiple scan lines according to the at least one selection signal. The trigger signal of the 1st stage of the driving unit is the start signal, and the trigger signal of the (i+1)th stage of the driving unit is the scan signal of the ith stage of the driving unit.
Abstract:
A pixel circuit includes an OLED, a driving transistor, first and second transistors, a storage capacitor and a coupling capacitor. The OLED includes an anode and a cathode connected to a first voltage source. The driving transistor includes a first node connected to a second voltage source, a second node, and a third node connected to the anode. The first transistor includes first, second and third terminals connected to a data driving line, a first control signal source, and the second node, respectively. The second transistor includes a first terminal, a second terminal connected to a second control signal source, and a third terminal connected to the anode and the third node. The storage capacitor includes first and second terminals connected to a third voltage source and the second transistor, respectively. The coupling capacitor includes first and second terminals connected to the second transistor and the second node, respectively.
Abstract:
An organic light emitting diode (OLED) based display device including a pixel circuit that includes: an OLED to be connected to a first power terminal, a transistor connected to the OLED, a first capacitor connected to the transistor, a second capacitor connected to the first capacitor and the transistor, a first switch receiving a data signal and a scanning signal and connected to the first capacitor, a second switch connected to the transistor and receiving an enable signal, a third switch connected to the transistor and receiving a compensation signal, and a switching unit configured to transmit one of the enable signal, voltage at a terminal of the first capacitor, a reference signal and the scanning signal to a terminal of the transistor when operated in a conductive state.
Abstract:
An OLED (Organic Light-Emitting Diode) display device and a pixel circuit thereof are disclosed. In a pixel circuit, a driving transistor driving an OLED is controlled for a reset operation and a compensation of the pixel circuit, by which a threshold voltage of the driving transistor is memorized on a control terminal of the driving transistor. In the compensation operation, a connection node between the driving transistor and the OLED is specially controlled. A switch circuit is provided in the pixel circuit. Based on a control signal, the switch circuit couples the connection node to a control voltage level. An enable interval of the control signal covers an enable interval of the reset operation and an enable interval of the compensation operation.