Organic luminescent display panel and organic luminescent display device

Abstract

The present invention discloses an organic luminescent display panel and an organic luminescent display device. The organic luminescent display panel comprises: a substrate; and a plurality of pixel circuits and a plurality of organic luminescent elements located on the substrate. Each pixel circuit comprises one drive transistor which is configured to supply a drive current to the organic luminescent elements; the vertical projection of the bottom electrode of at least one organic luminescent element on the substrate is not overlapped with the vertical projections of set grid potential structures in the corresponding pixel circuits, and the potentials on the set grid potential structures are equal to the potentials on the grid electrodes of the corresponding drive transistors. According to the technical scheme, The problems are effectively avoided that the change of the potentials of the grid electrodes of the drive transistors influences the potentials of the bottom electrodes of theorganic luminescent elements and influences the generation of carriers and the composition of the carriers in the luminescent function layer so as to influence the luminescent efficiency of the organic luminescent elements and influence the life of the organic luminescent display panel.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to an organic light emitting display panel and an organic light emitting display device. Background technique [0002] OLED, Organic Light-Emitting Diode (Organic Light-Emitting Diode), also known as organic electroluminescent device, OLED has gradually occupied a place in the small-size display field due to its advantages of thinness, bendability, high contrast, and wide color gamut. Its basic structure includes upper and lower electrodes corresponding to each pixel area and a light-emitting functional layer located between the upper and lower electrodes. When a voltage is applied to the upper electrode and the lower electrode, holes and electrons move to the light-emitting functional layer. The excitons in the light-emitting functional layer migrate from the excited state to the ground state to emit light. [0003] The organic light-emitting display pa...

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Problems solved by technology

[0003] The organic light-emitting display panel also includes a pixel circuit corresponding to each pixel area. The change of the gate potential of the driving transistor in the pixel circuit will affect the potential of the lower electrode of the organic light-emitting element, thereby affecting the luminous efficiency of the organic light-emitting element and affecting the organic light-emitting display. panel life

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