Driving method and circuit of organic light emitting diode
AssigneeDelta Optoelectronics, Inc.
InventorsYu-Zhong Chen, Chih-Jung Yu, Chen-Ting Tsai, Chieu-Yao Chin
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AssigneeDelta Optoelectronics, Inc.
InventorsYu-Zhong Chen, Chih-Jung Yu, Chen-Ting Tsai, Chieu-Yao Chin
Estimating the term…
Driving method and circuit of an organic light emitting diode, applied to an array of a plurality of organic light emitting diode. The array has several rows and columns of organic light emitting diodes. The row and column corresponding to the organic light emitting selected to illuminate are selected. A first voltage is applied to the selected column, and a second voltage is applied to the selected row. The difference between the first and second voltages is larger than the conducting voltage of the organic light emitting diode, so that the light emitting diode can illuminate. A third voltage and a fourth voltages are applied to other rows and columns which are not connected to the selected organic light emitting diode to provide a reverse bias to all the remaining light emitting diodes.
A driving method for an organic light emitting diode, applied to an array of a plurality of organic light emitting diodes arranged in a plurality of rows and a plurality of columns, the driving method comprising:
A driving method for an organic light emitting diode, applied to an array of a plurality of organic light emitting diodes arranged in a plurality of columns and a plurality of rows, the driving method comprising:
A driving circuit of an organic light emitting diode, comprising:
Dependencies are inferred from the claim text.
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Term ended 4 Sep 2022 (estimated)
1. Field of the Invention
The invention relates in general to a light emitting diode (LED), and more particularly, to a driving method of an organic light emitting diode (OLED).
2. Description of the Related Art
FIG. 1 shows the driving circuit and method of an organic light emitting diode in a first embodiment of the invention;
FIG. 2 shows the driving circuit and method of an organic light emitting diode in a second embodiment of the invention;
FIG. 3 shows the driving circuit and method of an organic light emitting diode in a third embodiment of the invention
The invention provides several circuits and methods to effectively drive an organic light emitting diode, whereby the neighboring light emitting diodes of a light emitting diode are not driven to mistakenly illuminate. The power saving objective is consequently achieved.
First Embodiment
FIG. 1 shows the driving circuit and method of an organic light emitting diode in a first embodiment of the invention. In FIG. 1, an array 10 is formed including a plurality of rows and a plurality columns of organic light emitting diodes. Typically, only by applying a forward bias larger than the conducting voltage across the organic light emitting diode, can they then illuminate.