ORGANIC ELECTROLUMINESCENT LIGHT EMITTING DISPLAY DEVICE
In an organic electroluminescent light emitting display device comprising a plurality of pixels each of which includes an organic electroluminescent element emitting light by a current supplied thereto, a plurality of active elements including a first active element which acquires a data signal and a second active element which regulates the current supplied to the organic electroluminescent element in accordance with the data signal, and a capacitive element storing the data signal, the present invention utilizes a part of the capacitive element arranged in one of the pixels for a light shielding member which shields the plurality of active elements arranged the one of the pixels from light emitted by the organic electroluminescent element arranged therein or another pixel adjacent thereto so as to suppress image quality deterioration and smear appearing in an image display area of the organic electroluminescent light emitting display device.
1 . An organic electroluminescent light emitting display device, comprising:
a substrate having a main surface;
a plurality of pixels arranged two-dimensionally on the main surface of the substrate;
a plurality of scanning signal lines arranged substantially parallel in a first direction on the main surface of the substrate;
a plurality of data signal lines arranged substantially parallel in a second direction which intersects the first direction on the main surface of the substrate; and
a plurality of current supply lines arranged on the main surface of the substrate,
wherein at least one of the plurality of pixels comprises:
a first active element;
a second active element;
a third active element;
an organic electroluminescent element connected to one of the plurality of current supply lines via the second active element and the third active element; and
a bank layer having an opening formed as a light emitting layer,
wherein one side of the opening of the bank layer extends in a third direction which intersects both the first direction and the second direction.
2 . An organic electroluminescent light emitting display device according to claim 1 , further comprising:
a plurality of control signal lines arranged substantially parallel to the first direction,
wherein the third active element is controlled by a signal inputted through a corresponding one of the plurality of control signal lines.
3 . An organic electroluminescent light emitting display device according to claim 1 , wherein the second active element and the third active element are connected in series between a corresponding one of the plurality of current supply lines and the organic electroluminescent element.
4 . An organic electroluminescent light emitting display device according to claim 1 , wherein the second active element controls a quantity of charge that is supplied to the organic electroluminescent element, and
the third active element functions as a current supply switch for the flow of current from the second active element to the organic electroluminescent element.
5 . An organic electroluminescent light emitting display device, comprising:
a substrate having a main surface;
a plurality of pixels arranged two-dimensionally on the main surface of the substrate;
a plurality of scanning signal lines arranged substantially parallel in a first direction on the main surface of the substrate;
a plurality of data signal lines arranged substantially parallel in a second direction which intersects the first direction on the main surface of the substrate; and
a plurality of current supply lines arranged on the main surface of the substrate,
wherein at least one of the plurality of pixels comprises:
a first active element;
a second active element;
a third active element;
an organic electroluminescent element connected to one of the plurality of current supply lines via the second active element and the third active element; and
a bank layer having an opening formed as a light emitting layer, wherein the opening has an octagonal profile.
6 . An organic electroluminescent light emitting display device according to claim 5 , further comprising:
a plurality of control signal lines arranged substantially parallel in the first direction,
wherein the third active element is controlled by a signal inputted through a corresponding one of the plurality of control signal lines.
7 . An organic electroluminescent light emitting display device according to claim 5 , wherein the second active element and the third active element are connected in series between a corresponding one of the plurality of current supply lines and the organic electroluminescent element.
8 . An organic electroluminescent light emitting display device according to claim 5 , wherein the second active element controls a quantity of charge that is supplied to the organic electroluminescent element, and
the third active element functions as a current supply switch for the flow of current rom the second active element to the organic electroluminescent element.