Display device and electronic device
A display device of the present disclosure includes: a first substrate; a second substrate; a plurality of light emitting units located between the first substrate and the second substrate and arranged two-dimensionally on a base formed on the first substrate; and a plurality of on-chip microlenses provided above the plurality of light emitting units so as to each correspond to each of the light emitting units. The on-chip microlens has a truncated pyramid shape, with a rounded corner of a top of the truncated pyramid in plan view.
1 . A display device, comprising:
a first substrate;
a second substrate;
a base on the first substrate;
a plurality of light emitting units between the first substrate and the second substrate,
wherein the plurality of light emitting units is in a two-dimensional arrangement on the base;
a plurality of on-chip microlenses above the plurality of light emitting units, wherein
each on-chip microlens of the plurality of on-chip microlenses corresponds to a respective light emitting unit of the plurality of light emitting units,
an on-chip microlens of the plurality of on-chip microlenses has a truncated pyramid shape, and
in plan view, a top surface of the truncated pyramid shape is flat and has a quadrangular shape with a rounded corner; and
a sealing resin layer between the top surface of the truncated pyramid shape and the second substrate.
2 . The display device according to claim 1 , wherein a shape of a bottom surface of the truncated pyramid shape is different from a shape of the top surface in the plan view.
3 . The display device according to claim 2 , wherein the bottom surface of the truncated pyramid shape has a quadrangular shape in the plan view.
4 . The display device according to claim 1 , wherein a bottom surface of the truncated pyramid shape has a rounded corner in the plan view.
5 . The display device according to claim 4 , wherein a radius of curvature of the rounded corner of the bottom surface of the truncated pyramid shape is smaller than a radius of curvature of the rounded corner of the top surface.
6 . The display device according to claim 2 , wherein the bottom surface of the truncated pyramid shape has one of a hexagonal shape or a rectangular shape in the plan view.
7 . The display device according to claim 1 , further comprising a plurality of pixels, wherein
the plurality of pixels includes the plurality of light emitting units, and
the truncated pyramid shape has a size in the plan view different for each pixel of the plurality of pixels.
8 . The display device according to claim 1 , wherein each light emitting unit of the plurality of light emitting units includes an organic electroluminescence element.
9 . The display device according to claim 8 , wherein each light emitting unit of the plurality of light emitting units is configured to emit white light.
10 . The display device according to claim 9 , further comprising a color filter layer corresponding to each light emitting unit of the plurality of light emitting units, wherein
the color filter layer is above the plurality of light emitting units, and
the on-chip microlens is above the color filter layer.
11 . The display device according to claim 10 , further comprising a display panel,
wherein the color filter layer and the on-chip microlens are on the display panel in a state of being biased with respect to the respective light emitting unit based on a location of the respective light emitting unit on the display panel.
12 . The display device according to claim 11 , wherein the color filter layer and the on-chip microlens are in the state of being biased with respect to the respective light emitting unit such that an optical axis associated with the on-chip microlens is inclined toward a central portion of the display panel in both ends of the display panel in a row direction of the display panel.
13 . An electronic device, comprising:
a display device that includes:
a first substrate;
a second substrate;
a base on the first substrate;
a plurality of light emitting units between the first substrate and the second substrate,
wherein the plurality of light emitting units is in a two-dimensional arrangement on the base;
a plurality of on-chip microlenses above the plurality of light emitting units, wherein
each on-chip microlens of the plurality of on-chip microlenses corresponds to a respective light emitting unit of the plurality of light emitting units,
an on-chip microlens of the plurality of on-chip microlenses has a truncated pyramid shape, and
in plan view, a top surface of the truncated pyramid shape is flat and has a quadrangular shape with a rounded corner; and
a sealing resin layer between the top surface of the truncated pyramid shape and the second substrate.
14 . The display device according to claim 1 , wherein
the plurality of on-chip microlenses includes a first on-chip microlens and a second on-chip microlens,
the first on-chip microlens is adjacent to the second on-chip microlens, and
the display device further comprises a gap between a bottom surface of the first on-chip microlens and a bottom surface of the second on-chip microlens.