Display panel with electrode surrounding pixel electrode
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorsJinyang Zhao, Lixuan Chen, Zhiqing Shi
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Abstract
An embodiment of the present application provides a display panel. The display panel generates an electric field on the pixel electrode. In the display panel provided by the present application, since opposite poles that generate the electric field are specially designed, a distance between the opposite poles that generate the electric field is constant everywhere, thereby improving uniformity of the electric field. Such electric field assisted deposition of a light-emitting functional layer material and drying of the light-emitting functional layer can suppress a coffee ring effect.
Claims12
A display panel, comprising:
- an array substrate,
- a pixel electrode layer disposed on the array substrate and including a plurality of pixel electrodes;
- an electric field electrode layer disposed on the array substrate, wherein the electric field electrode layer is insulated from the pixel electrode layer, and the electric field electrode layer includes at least one electric field electrode at least surrounding a part of the pixel electrode,
- wherein different voltages are applied to the pixel electrode layer and the electric field electrode layer to form a voltage difference, so that an electric field is formed between the pixel electrode layer and the electric field electrode layer, the electric field has a horizontal component and a vertical component, the vertical component of the electric field provides charged groups in a material of a light-emitting functional layer with a force to deposit on the pixel electrode layer;
- wherein the array substrate comprises a light shielding layer, a first capacitor plate, a buffer layer, a semiconductor layer, a second capacitor plate, and a gate insulating layer, a gate layer, an interlayer insulating layer, a drain wiring, a source wiring, an auxiliary cathode wiring, a passivation layer, and a planarization layer which are sequentially stacked on a side of the substrate;
- and the pixel electrode layer and the electric field electrode layer are disposed on the planarization layer.
Dependencies are inferred from the claim text.