| CPC H10K 59/38 (2023.02) [H10K 50/844 (2023.02); H10K 50/85 (2023.02); H10K 50/865 (2023.02); H10K 59/1315 (2023.02); H10K 71/00 (2023.02); G09G 3/3258 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0819 (2013.01); G09G 2310/061 (2013.01); G09G 2320/0257 (2013.01); H10K 59/1201 (2023.02)] | 14 Claims |
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1. A display device, comprising:
a substrate, comprising a display area and a peripheral area surrounding the display area;
a plurality of light-emitting elements arranged in an array on the substrate, wherein the plurality of light-emitting elements comprise a first light-emitting element and a second light-emitting element adjacent to the first light-emitting element in a first direction parallel to a surface of the substrate; and
a color filter layer, which is on the substrate and comprises a plurality of color filter units, wherein in the display area, the plurality of color filter units are in one-to-one correspondence with the plurality of light-emitting elements and are on a side of the plurality of light-emitting elements away from the substrate;
wherein in a second direction perpendicular to the surface of the substrate, a distance between the plurality of light-emitting elements and the color filter layer is a first distance;
the display device has a color deviation prevention viewing angle on a reference plane determined by the first direction and the second direction perpendicular to the surface of the substrate;
the color deviation prevention viewing angle is, along a cross-section by the reference plane, an angle between a connection line and the second direction perpendicular to the surface of the substrate, the connection line connects a side of the first light-emitting element close to the second light-emitting element and a side of a color filter unit, which corresponds to the second light-emitting element, close to the first light-emitting element; and
the first distance is configured to enable the color deviation prevention viewing angle to be greater than a preset angle,
the display device further comprises: a first thin film encapsulation layer, provided between the plurality of light-emitting elements and the color filter layer, wherein the first distance comprises a thickness of the first thin film encapsulation layer,
the display device further comprises a second thin film encapsulation layer, on a side of the color filter layer away from the substrate, wherein the first thin film encapsulation layer comprises:
a first inorganic encapsulation layer, on the side of the light-emitting elements away from the substrate;
a second inorganic encapsulation layer, on a side of the first inorganic encapsulation layer away from the substrate; and
a first organic encapsulation layer, on a side of the second inorganic encapsulation layer away from the substrate,
wherein a refractive index of the first inorganic encapsulation layer is greater than a refractive index of the second inorganic encapsulation layer,
the display device further comprises a color deviation prevention distance on the reference plane determined by the first direction and the second direction perpendicular to the surface of the substrate,
wherein the color deviation prevention distance is, along the cross-section by the reference plane, a minimum distance between an edge of a projection of a light-emitting area of the first light-emitting element on the color filter layer and the color filter unit corresponding to the second light-emitting element,
the color deviation prevention distance ranges from 0.1 micron to 15 microns, the first distance between the plurality of light-emitting elements and the color filter layer ranges from 0.02 microns to 15 microns, and the preset angle ranges from 30° to 80°,
the display device further comprises a black matrix between adjacent color filter units of the plurality of color filter units, and the color deviation prevention distance is equal to a width of the black matrix in the first direction.
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