Light-emitting substrate, light-emitting apparatus and lighting apparatus
The present disclosure provides a light-emitting substrate, a light-emitting apparatus and a lighting apparatus. The light-emitting substrate includes: a base substrate including a plurality of light-emitting regions and a plurality of non-light-emitting regions, where the plurality of light-emitting regions are arranged in an array; a plurality of light-emitting units located in the plurality of light-emitting regions, respectively, where in each light-emitting region, more than one light-emitting unit is arranged in an array; a covering layer covering the light-emitting region and the non-light-emitting region; and a plurality of support structures arranged in an array and evenly distributed in the plurality of non-light-emitting regions and/or between the plurality of light-emitting units, where the support structures are used to support the covering layer.
1 . A light-emitting substrate, comprising:
a base substrate comprising a plurality of light-emitting regions and a plurality of non-light-emitting regions, wherein the plurality of light-emitting regions are arranged in an array, and at least one of the non-light-emitting regions is located between the light-emitting regions;
a plurality of light-emitting units located in the plurality of light-emitting regions respectively, wherein in each light-emitting region, more than one light-emitting unit is arranged in an array;
a pixel defining layer comprising a plurality of openings; and
a plurality of support structures disposed on a side of the pixel defining layer away from the base substrate, wherein the plurality of support structures are arranged in an array, and are distributed in the plurality of non-light-emitting regions and between the more than one light-emitting unit,
wherein the plurality of support structures comprise a plurality of first support portions in the non-light-emitting regions; and the plurality of first support portions are arranged into a plurality of rows, and the rows of first support portions are arranged in a shape identical to a shape of edges of the light-emitting regions; and
wherein a first section of each first support portion in a plane parallel to a plane in which an upper surface of the base substrate is located is in a shape of a square, and a side length of the square is in a range of 5 microns to 60 microns.
2 . The light-emitting substrate according to claim 1 , wherein each light-emitting region comprises a plurality of side edges, and edges of the plurality of side edges are in straight lines, and
more than one first support portion between side edges of two adjacent light-emitting regions are arranged in a shape of a straight line parallel to the side edge.
3 . The light-emitting substrate according to claim 2 , wherein the first support portions in adjacent rows are alternately arranged in a row direction; and
orthographic projections of the first support portions in the adjacent rows in a direction perpendicular to the row direction do not overlap with each other.
4 . A light-emitting substrate, comprising:
a base substrate comprising a plurality of light-emitting regions and a plurality of non-light-emitting regions, wherein the plurality of light-emitting regions are arranged in an array, and at least one of the non-light-emitting regions is located between the light-emitting regions;
a plurality of light-emitting units located in the plurality of light-emitting regions respectively, wherein in each light-emitting region, more than one light-emitting unit is arranged in an array;
a pixel defining layer comprising a plurality of openings; and
a plurality of support structures disposed on a side of the pixel defining layer away from the base substrate, wherein the plurality of support structures are arranged in an array, and are distributed in the plurality of non-light-emitting regions and between the more than one light-emitting unit,
wherein the plurality of support structures comprise a plurality of first support portions in the non-light-emitting regions; and the plurality of first support portions are arranged into a plurality of rows, and the rows of first support portions are arranged in a shape identical to a shape of edges of the light-emitting regions; and
wherein each light-emitting region comprises a curved side edge, and each row of the first support portions at a periphery of each light-emitting region is arranged in a curve identical to a curve of the curved side edge.
5 . A light-emitting substrate, comprising:
a base substrate comprising a plurality of light-emitting regions and a plurality of non-light-emitting regions, wherein the plurality of light-emitting regions are arranged in an array, and at least one of the non-light-emitting regions is located between the light-emitting regions;
a plurality of light-emitting units located in the plurality of light-emitting regions respectively, wherein in each light-emitting region, more than one light-emitting unit is arranged in an array;
a pixel defining layer comprising a plurality of openings; and
a plurality of support structures disposed on a side of the pixel defining layer away from the base substrate, wherein the plurality of support structures are arranged in an array, and are distributed in the plurality of non-light-emitting regions and between the more than one light-emitting unit,
wherein the plurality of support structures comprise a plurality of first support portions in the non-light-emitting regions; and the plurality of first support portions are arranged into a plurality of rows, and the rows of first support portions are arranged in a shape identical to a shape of edges of the light-emitting regions;
wherein a first section of each first support portion in a plane parallel to a plane in which an upper surface of the base substrate is located is in a shape of a rectangle, and a length direction of the rectangle is parallel to an edge of the light-emitting regions, and
wherein a length of the rectangle is in a range of 5 microns to 60 microns, and a width of the rectangle is in a range of 3 microns to 20 microns.
6 . The light-emitting substrate according to claim 1 , wherein the plurality of support structures comprise a plurality of second support portions, and the plurality of second support portions are between the more than one light-emitting unit in the light-emitting region; and
the plurality of second support portions are arranged into one row between adjacent light-emitting units, and the one row of second support portions is arranged in a direction parallel to an edge direction of an opening of the pixel defining layer, wherein the opening corresponds to a respective light-emitting unit.
7 . The light-emitting substrate according to claim 6 , wherein the second support portions comprise a side edge support portion disposed between adjacent side edges of two adjacent light-emitting units.
8 . The light-emitting substrate according to claim 7 , wherein a second section of the side edge support portion in a plane parallel to a plane in which an upper surface of the base substrate is located is in a shape of a rectangle.
9 . The light-emitting substrate according to claim 8 , wherein more than one side edge support portion is provided between adjacent side edges of two light-emitting units, and
a length of the rectangle is in a range of 5 microns to 60 microns, and a width of the rectangle is in a range of 3 microns to 20 microns.
10 . The light-emitting substrate according to claim 8 , wherein one side edge support portion is provided between adjacent edges of two light-emitting units, and
a length of the rectangle is in a range of 20 microns to 300 microns, and a width of the rectangle is in a range of 3 microns to 30 microns.
11 . The light-emitting substrate according to claim 6 , wherein the second support portions comprise a vertex support portion disposed between adjacent vertices of four adjacent light-emitting units.
12 . The light-emitting substrate according to claim 11 , wherein among the four adjacent light-emitting units, the vertices of light-emitting units opposite to each other have a same distance to the vertex support portion.
13 . The light-emitting substrate according to claim 12 , wherein the vertex support portion has a length direction and a width direction,
in the length direction, a distance from the vertex support portion to the vertex of the light-emitting unit is in a range of 3 microns to 30 microns, and
in the width direction, a distance from the vertex support portion to the vertex of the light-emitting unit is in a range of 2 microns to 20 microns.
14 . The light-emitting substrate according to claim 11 , wherein a third section of the vertex support portion in a plane parallel to a plane in which an upper surface of the base substrate is located is in a shape of an axisymmetric figure, and a symmetry axis of the axisymmetric figure is a line connecting adjacent vertices of two adjacent and opposite light-emitting units.
15 . The light-emitting substrate according to claim 1 , further comprising:
a covering layer covering the light-emitting region and the non-light-emitting region, wherein at least a part of the covering layer is supported by the plurality of support structures;
an anode disposed on the base substrate, wherein a layer in which the anode is located is on a side of the pixel defining layer close to the base substrate;
a driver circuit disposed on the base substrate, wherein a layer in which the driver circuit is located is on a side of the layer in which the anode is located close to the base substrate; and
an anode connecting hole, wherein the anode is electrically connected to the driver circuit corresponding to the anode through the anode connecting hole,
wherein an orthographic projection of the anode connecting hole on the base substrate falls within an orthographic projection of the pixel defining layer on the base substrate, and the orthographic projection of the anode connecting hole on the base substrate is spaced apart from an orthographic projection of the support structure on the base substrate; and
wherein the plurality of support structures are spaced apart from each other and distributed between anode connecting holes of two adjacent light-emitting units.
16 . A light-emitting apparatus, comprising the light-emitting substrate according to claim 1 .
17 . A lighting apparatus, comprising the light-emitting substrate according to claim 1 .