G09G 3/3216 - Definition

Definition statement

This subclass covers:

Control of displays using organic electroluminescent display elements arranged in a matrix, wherein each display elements is located at the intersection of a scan and a data electrode, and directly controlled by the scan and data signal supplied to the scan and data electrode, respectively, i.e. without an active element such as a diode (other than the light-emitting one), or a transistor at the intersection being involved.

The figure below is an example of a passive matrix. In the figure, passive matrix is characterised as having a line driving method which lights all light-emitting devices of the line at once, and a matrix is a 2-dimensional arrangement, comprising cathode and anode strips.

The figure below is an example of selective application of a current to the anodes of the OLED display elements as data signal via data electrodes Ak while a voltage is supplied to the cathodes anodes of the OLED display elements as scan signal via scan electrodes.