摘要:
An organic light emitting display includes a pixel circuit having first, second, and third organic light emitting diodes (OLEDs), for emitting red, green, and blue light, respectively, a driving circuit commonly connected to the OLEDs, and a switching circuits connected to the OLED and the driving circuit to sequentially control the driving thereof. By controlling a plurality of OLEDs, the number of pixel circuits in an organic light emitting display is reduced, thereby reducing the number of scan lines, data lines, and emission control lines, which in turn improves the aperture ratio of the light emitting display. Further, the emission order of the OLEDs is controlled so that it is possible to prevent the generation of color breakup.
摘要:
A light emitting display includes first and second scan lines arranged in a row direction to transmit first and second scan signals, a data line arranged in a column direction to transmit a data signal, an image display unit including first and second emission control lines arranged in the row direction to transmit first and second emission control signals, respectively, and a pixel formed in a region defined by the first and second scan lines and the data line. The pixel has a driving circuit for receiving the first and second scan signals, the data signal, the first and second emission control signals, and a first power of a first power source to drive a current, a switching circuit connected with the driving circuit to receive the current, the switching circuit for selectively applying the current in accordance with the first and second emission control signals, and first and second organic light emitting diodes (OLEDs) positioned on two different rows of the image display unit and connected with the switching circuit to receive the current in accordance with an operation of the switching circuit and to emit light. Therefore, a plurality of OLEDs emit light through one pixel circuit so the number of data lines and the number of pixel power sources can be reduced. Also, since the number of data lines is reduced, it is possible to reduce the size of a data driver and to reduce a manufacturing cost of the light emitting display.
摘要:
A pixel and a light emitting display including the pixel. The pixel includes first and second organic light emitting diodes (OLEDs), a driving circuit commonly connected to the plurality of OLEDs to drive the first and second OLEDs, a switching circuit connected between the first and second OLEDs and the driving circuit to sequentially control the driving of the first and second OLEDs using first and second emission control signals, and a reverse bias circuit for selectively applying a reverse bias voltage including at least one of the first and second emission control signals to the first and second OLEDs. Therefore, the reverse bias can be easily applied in the periods when the OLEDs do not emit light and thus can improve the characteristics of the OLEDs. Also, since, the first and second OLEDs are connected to one pixel circuit, it is possible to reduce the number of pixels of the light emitting display and thus to improve the aperture ratio of the light emitting display.
摘要:
A pixel circuit for a light emitting display. Adjacent pixels of the light emitting display coupled to one scan line share one first power supply line. A driving circuit in each pixel circuit drives first and second organic light emitting diodes (OLEDs). A switching circuit is coupled between the first and second OLEDs and the driving circuit to sequentially control the driving of the first and second OLEDs. Because two adjacent pixel circuits share one pixel power supply line and a plurality of OLEDs are coupled to one pixel circuit, it is possible to reduce the number of pixel circuits and the number of wiring lines of the light emitting display. Other circuit elements may also be shared between adjacent pixel circuits. Reducing the wiring and other elements of the pixel circuits makes it possible to increase the aperture ratio of the light emitting display.
摘要:
A delta pixel circuit and a light emitting display are able to minimize a color separation phenomenon by adjusting an emitting point of a plurality of emitting diodes (or devices), reduce the number of driving circuits, and have a high aperture ratio. A first, second, and third light emitting diodes are arranged in a delta pattern and respectively correspond to a red color, a green color, and a blue color. A driving circuit is commonly connected with the first, second, and third light emitting diodes and is for supplying a current to each of the diodes. A switching circuit is connected between the driving circuit and the first, second, and third light emitting diodes and selectively supplies the current to the first, second, and third light emitting diodes.
摘要:
An organic light emitting display device may include a plurality of pixels, a plurality of scan lines for selectively applying a scan signal to the pixels, a plurality of data lines crossing the scan lines for applying a data signal to the respective pixels, a scan driver for applying a scan signal to the scan lines, and at least one first testing unit electrically connected to the scan driver, wherein at least one output line of the first testing unit is electrically connected to the scan driver, and at least one other output line of the first testing unit is electrically disconnected and in an electrically open state.
摘要:
Disclosed herein is a dielectric chip antenna structure using a metal conductor formed at the lateral side of the antenna along the longitudinal direction of the antenna. The dielectric chip antenna structure forms the metal conductor at the long side of the antenna to induce antenna resonance through coupling effect between the antenna and the ground. Furthermore, the dielectric chip antenna structure minimizes the space occupied by the antenna and modifies the theoretical feeding structures of the reverse F type antenna and monopole antenna to meet user's various demands.
摘要:
A thin film transistor includes a semiconductor layer arranged on a substrate, a first insulating layer arranged on the substrate and the semiconductor layer, a gate electrode arranged on the first insulating layer, and a second insulating layer formed on the first insulating layer and the gate electrode. The width of the gate electrode may be less than the width of the semiconductor layer to prevent a short.
摘要:
A light emitting display includes a plurality of scan lines, a plurality of data lines, a plurality of first light emitting control lines, a plurality of second light emitting controls lines, a plurality of third light emitting control lines, and a plurality of pixels. Each of the pixels includes at least four light emitting elements, a drive circuit, connected to and driving the light emitting elements, and a switch circuit assembly, connected to the light emitting elements and the drive circuit for sequentially controlling driving of the light emitting elements. The switch circuit assembly includes a first switch circuit, for sequentially driving the first and second light emitting elements according to first and second light emitting control signals, and a second switch circuit, for sequentially driving the third and fourth light emitting elements according to second and third light emitting control signals.
摘要:
An organic light emitting display array substrate on which display panels can be simultaneously tested on a substrate basis and a method of testing the display panels on the substrate is disclosed. In one embodiment, the organic light emitting display array substrate includes a plurality of panels formed on the substrate, a first wiring line group formed on each of the panels in a first direction, a pad unit formed on each of the panels to be electrically connected to the first wiring line group, a first power source line formed on each of the panels in the first direction to receive a first power source, and a second wiring line group formed on each of the panels in a second direction. The first wiring line group is electrically connected to a scan driver formed in each of the panels. The substrate can reduce test time and improve test efficiency. In addition, it can prevent a voltage drop and/or a signal delay.