Display panel, method for fabricating the same, and display device
View Patent ↗This disclosure relates to the field of display technologies, and discloses a display substrate, a method for fabricating the same, and a display device. The display substrate includes: a substrate, and a plurality of pixels and a pixel definition layer on the substrate, wherein the pixels include long sides and short sides; and the pixel definition layer includes long-side sections adjacent to the long sides, and short-side sections adjacent to the short sides, wherein heights of the long-side sections are greater than heights of the short-side sections.
1. A display substrate, comprising:
a substrate,
a plurality of pixels, and
a pixel definition layer on the substrate, wherein:
the plurality of pixels comprise long sides and short sides formed in pixel opening areas defined by the pixel definition layer;
the pixel definition layer comprises long-side sections adjacent to the long sides, and short-side sections adjacent to the short sides, and heights of the long-side sections are greater than heights of the short-side sections:
a length l1 of at least one of the long sides, a length l2 of at least one of the short sides, a height h1 of at least one of the long-side sections, and a height h2 of at least one of the short-side sections satisfy h1/h2=(⅓˜¾)l1/l2 to form a film with a uniform thickness in the pixel opening areas;
wall sides of the pixel definition layer facing the plurality of pixels are slope faces, each of the slope faces are at a slope angle to the substrate, and none of the slope angle is equal to 90°; a slope angle of the slope faces facing the long sides of the plurality of pixels is equal to a slope angle of the slope faces facing the short sides of the plurality of pixels; and
the pixel definition layer comprises a lyophilic material layer, and a lyophobic material layer on a side of the lyophilic material layer away from the substrate; a thickness s1 of the lyophobic material layer, and a thickness s2 of the lyophilic material layer of a long-side section satisfy s1≥½*s2 to improve the uniformity of the thickness of the film in the pixel opening areas.
2. The display substrate according to claim 1 , wherein the height h1 of at least one of the long-side sections ranges from 1 μm to 5 μm, and the height h2 of at least one of the short-side sections ranges from 0.5 μm to 2.5 μm.
3. A display device, comprising the display substrate according to claim 1 .
4. The display device according to claim 3 , wherein a height h1 of at least one of the long-side sections ranges from 1 μm to 5 μm, and a height h2 of at least one of the short-side sections ranges from 0.5 μm to 2.5 μm.