Embodiment
Seeing also shown in Fig. 1-1, the 1-2, is the single pixel arrangement synoptic diagram of first embodiment of the present invention positive type organic light emitting diode display and the driving voltage waveform sequential chart of Fig. 1-1.As shown in the figure: the digital drive method and the device of positive type organic light emitting diode display of the present invention, mainly form by 10 in many groups pixel (pixel) device, and the Organic Light Emitting Diode (OLED) 4 of each pixel arrangement 10 adopted the common cathode earthing mode, utilize control power lead 7 current potentials height, to realize writing the digital drive framework of shinny separation (Program DisplaySeparated), when the input image data, power lead 7 current potentials are connected to zero potential (GND), make the Organic Light Emitting Diode 4 can't be shinny, when the image output data, then the current potential with power lead 7 is connected to positive potential VH, makes Organic Light Emitting Diode 4 shinny.
For realizing said method, pixel that the present invention adopts (pixel) device 10 comprises: a switch element 1, a driver element 2, a storage element 3 and an Organic Light Emitting Diode (OLED) 4; Wherein,
Above-mentioned switch element 1 can be the thin film transistor (TFT) (TFT) of P channel, and 1 liang of input end of this switch element 11,12 respectively is connected with one scan line (Scan Line) 5 and one data line (Data Line) 6 respectively and connects;
This driver element 2 can be the thin film transistor (TFT) (TFT) of P channel, and the input end 21 of this driver element 2 connects power leads (SUPPLY LINE) 7, and other end input end 22 is connected with the output terminal 13 of above-mentioned switch element 1;
This storage element 3 is made of capacitor, an end ground connection, and the other end is connected in input end 22 junctions of output terminal 13 with the driver element 2 of switch element 1;
The input end 41 of this Organic Light Emitting Diode (OLED) 4 is connected with the output terminal 23 of above-mentioned driver element 2, and output terminal 42 ground connection of Organic Light Emitting Diode (OLED) 4;
When this installs in the scan-image data, the current potential of power lead 7 is connected to zero potential GND, make the Organic Light Emitting Diode 4 can't be shinny, this switch element 1 presents conducting state, this moment, image data entered into 1 li of switch element by data line 6, after sweep trace 5 scannings, and be stored in (also being after the switch element conducting) in the storage element 3 to the storage element charging, if image data is shinny, then store no-voltage GND in storage element 3, if image data for not shinny, then stores positive voltage VH in storage element 3; Sweep trace current potential in carrying out scanning process is zero potential GND, the current potential of other sweep trace then is positive potential VH, after waiting to finish all scanning motions, the current potential of power lead 7 is connected to positive potential VH, and makes storage no-voltage GND shinny in the Organic Light Emitting Diode 4 of the pixel arrangement 10 of storage element 3.
Seeing also shown in Fig. 2-1, the 2-2, is the driving voltage waveform sequential chart of second embodiment of the present invention synoptic diagram and Fig. 2-1.As shown in the figure: the digital drive method and the device of positive type organic light emitting diode display of the present invention, mainly form by 20 in many groups pixel (pixel) device, and the Organic Light Emitting Diode (OLED) 4 of each pixel arrangement 20 adopted the common cathode earthing mode, utilize control power lead 7 current potentials height, to realize writing the digital drive framework of shinny separation (Program Display Separated), when the input image data, power lead 7 current potentials are connected to zero potential (GND), make the Organic Light Emitting Diode 4 can't be shinny, when the image output data, then the current potential with power lead 7 is connected to positive potential VH, makes Organic Light Emitting Diode 4 shinny.
For realizing said method, pixel that the present invention adopts (pixel) device 20 comprises: a switch element 1, a driver element 2, a storage element 3 and an Organic Light Emitting Diode (OLED) 4; Wherein,
Above-mentioned switch element 1 can be the thin film transistor (TFT) (TFT) of P channel, and 1 liang of input end of this switch element 11,12 respectively is connected with one scan line (Scan Line) 5 and one data line (Data Line) 6 respectively and connects;
This driver element 2 can be the thin film transistor (TFT) (TFT) of P channel, and the input end of this driver element 2 connects 21 and connects power leads (SUPPLY LINE) 7, and other end input end 22 is connected with the output terminal 13 of above-mentioned switch element 1;
This storage element 3 is made of capacitor, and an end is connected in power lead 7, and the other end is connected in input end 22 junctions of output terminal 13 with the driver element 2 of switch element 1;
The input end 41 of this Organic Light Emitting Diode (OLED) 4 is connected with the output terminal 23 of above-mentioned driver element 2, and output terminal 42 ground connection of Organic Light Emitting Diode (OLED) 4;
When this installs in the scan-image data, the current potential of power lead 7 is connected to zero potential GND, make the Organic Light Emitting Diode 4 can't be shinny, this switch element 1 presents conducting state, this moment, image data was entered in 1 li of switch element by data line 6, after sweep trace 5 scannings, and be stored in (also being after the switch element conducting) in the storage element 3 to the storage element charging, if image data is shinny, then store negative voltage VL in storage element 3, if image data for not shinny, then stores no-voltage GND in storage element 3; Sweep trace current potential in carrying out scanning process is negative potential VL, the current potential of other sweep trace then is positive potential VH, after waiting to finish all scanning motions, the current potential of power lead 7 is connected to positive potential VH, and makes storage negative voltage VL shinny in the Organic Light Emitting Diode 4 of the pixel arrangement 20 of storage element 3.
Seeing also shown in Fig. 3-1, the 3-2, is the single pixel arrangement synoptic diagram of third embodiment of the present invention positive type organic light emitting diode display and the driving voltage waveform sequential chart of Fig. 3-1.As shown in the figure: the digital drive method and the device of positive type organic light emitting diode display of the present invention, mainly by many groups pixel (pixel) device 30,40 form, and with each pixel arrangement 30,40 Organic Light Emitting Diode (OLED) 4 is adopted the common cathode earthing mode, utilize control power lead 7 current potentials height, to realize writing the digital drive framework of shinny separation (ProgramDisplay Separated), when the input image data, power lead 7 current potentials are connected to zero potential (GND), make the Organic Light Emitting Diode 4 can't be shinny, when the image output data, then the current potential with power lead 7 is connected to positive potential VH, makes Organic Light Emitting Diode 4 shinny.
For realizing said method, pixel that the present invention adopts (pixel) device 30 comprises: a switch element 1, a driver element 2, a storage element 3 and an Organic Light Emitting Diode (OLED) 4; Wherein,
Above-mentioned switch element 1 can be the thin film transistor (TFT) (TFT) of P channel, and 1 liang of input end of this switch element 11,12 respectively is connected with one scan line (Scan Line) 5 and one data line (Data Line) 6 respectively and connects;
This driver element 2 can be the thin film transistor (TFT) (TFT) of P channel, and the input end of this driver element 2 connects 21 and connects power leads (SUPPLY LINE) 7, and other end input end 22 is connected with the output terminal 13 of above-mentioned switch element 1;
This storage element 3 is made of capacitor, and an end is connected in input end 22 junctions of output terminal 13 with the driver element 2 of switch element 1, and the other end then is connected in the sweep trace 8 of neighbor device 40;
The input end 41 of this Organic Light Emitting Diode (OLED) 4 is connected with the output terminal 23 of above-mentioned driver element 2, and output terminal 42 ground connection of Organic Light Emitting Diode (OLED) 4;
When this installs in the scan-image data, the current potential of power lead 7 is connected to zero potential GND, make the Organic Light Emitting Diode 4 can't be shinny, this switch element 1 presents conducting state, this moment, image data was entered in 1 li of switch element by data line 6, after sweep trace 5 scannings, and be stored in (also being after the switch element conducting) in the storage element 3 to the storage element charging, if image data is shinny, then store no-voltage GND in storage element 3, if image data for not shinny, then stores positive voltage VH in storage element 3; Sweep trace current potential in carrying out scanning process is zero potential GND, the current potential of other sweep trace then is positive potential VH, after waiting to finish all scanning motions, the current potential of power lead 7 is connected to positive potential VH, and makes storage no-voltage GND shinny in the Organic Light Emitting Diode 4 of the pixel arrangement 30 of storage element 3.
Above-mentioned is preferred embodiment of the present invention only, is not to be used for limiting scope of the invention process.Be that all equalizations of being done according to the present patent application claim change and modification, be all claim of the present invention and contain.