Display substrate, manufacturing method thereof, display device
AssigneeBeijing BOE Technology Development Co., Ltd.
InventorsCan Wang, Can Zhang
Life of this patent
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Abstract
A display substrate, a manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate, a pixel defining layer, and a first electrode layer between the base substrate and the pixel defining layer. The pixel defining layer defines a plurality of sub-pixels on the base substrate, the first electrode layer comprises a plurality of first electrodes, and the plurality of first electrodes being separated from each other by gaps, and an orthographic projection of the pixel defining layer on the base substrate covers an orthographic projection of the gap on the base substrate.
Claims17
A display substrate comprising:
- a base substrate;
- a pixel defining layer;
- and
- a first electrode layer between the base substrate and the pixel defining layer,
- wherein the pixel defining layer defines a plurality of sub-pixels on the base substrate,
- wherein the first electrode layer comprises a plurality of first electrodes and a gap between adjacent first electrodes of plurality of first electrodes,
- wherein the adjacent first electrodes of the plurality of first electrodes are independent and separated from each other by the gap, and
- wherein an orthographic projection of the pixel defining layer on the base substrate covers an orthographic projection of the gap on the base substrate,
- wherein each of the plurality of sub-pixels comprises a first one of the plurality of first electrodes, a light emitting layer, and a second electrode, wherein the light emitting layer is between the first one of the plurality of first electrodes and the second electrode,
- wherein respective second electrodes of the plurality of sub-pixels are connected to each other to form a second electrode layer,
- wherein the first electrode layer and the pixel defining layer are stacked in sequence on the base substrate in a vertical direction perpendicular to the base substrate, the second electrode layer directly contacts and covers upper surfaces of the pixel defining layer, and the light emitting layer facing away the base substrate, and
- wherein a lower surface of the pixel defining layer facing the base substrate directly contacts upper surfaces of the adjacent first electrodes of the plurality of first electrodes facing away the base substrate, such that the base substrate, the pixel defining layer and the adjacent first electrodes of the plurality of first electrodes form the gap.
A manufacturing method for a display substrate, comprising:
- forming a first electrode layer on a base substrate, the first electrode layer comprising a plurality of first electrodes and gaps between adjacent first electrodes of plurality of first electrodes, the adjacent first electrodes of the plurality of first electrodes being independent and separated from each other by the gaps;
- forming a plastic material layer on a sacrificial substrate;
- laminating the base substrate and the sacrificial substrate to adhere the plastic material layer to the plurality of first electrodes, such that the first electrode layer is located between the base substrate and the plastic material layer;
- removing the sacrificial substrate;
- and
- patterning the plastic material layer to obtain a plurality of plastic units, such that at least a portion of each first electrode of the plurality of first electrodes are exposed and the gaps are not exposed, wherein orthographic projections of the plurality of plastic units on the base substrate cover orthographic projections of the gaps on the base substrate.
Dependencies are inferred from the claim text.