Optical assembly and display apparatus
View Patent ↗An optical assembly and a display apparatus are provided. The optical assembly includes a cover plate, an optical transparent adhesive, a polarizer, a display panel, and an antireflection coating. The antireflection coating is disposed at a location corresponding to a camera, and is configured to reduce the reflectivity of incident light entering the camera. The antireflection coating is disposed at the location corresponding to the camera, so as to reduce the reflectivity of the incident light entering the camera, thereby increasing a mount of admitted light of the camera.
1. An optical assembly, applied to a mobile terminal comprising a camera, wherein the optical assembly comprises: a cover plate, an optical transparent adhesive, a polarizer, a display panel, and a first antireflection coating, wherein
the cover plate is light-transmissive and adheres to a first surface of the polarizer using the optical transparent adhesive;
a second surface of the polarizer adheres to a first surface of the display panel; the polarizer is provided with a through-hole at a location corresponding to the camera;
the display panel is provided with a through-hole area at the location corresponding to the camera; and the display panel comprises a display substance, and the display substance is not comprised in the through-hole area; and
the first antireflection coating is disposed on the first surface of the display panel at the location corresponding to the camera; within the through-hole area, the first antireflection coating covers the first surface of the display panel, the polarizer covers a top surface of the first antireflection coating, and the first antireflection coating is configured to reduce reflectivity of incident light entering the camera.
2. The optical assembly as claimed in claim 1 , wherein a second antireflection coating is disposed on an outer surface of the cover plate away from the camera.
3. The optical assembly as claimed in claim 2 , wherein the first antireflection coating covers the outer surface of the cover plate away from the camera.
4. The optical assembly as claimed in claim 1 , wherein the display panel comprises an array substrate, a color film substrate, and liquid crystal, the array substrate and the color film substrate are cell-assembled together, and the liquid crystal is disposed between the array substrate and the color film substrate, and within the through-hole area, the display panel is further provided with an opaque hollow column body; and a second antireflection coating is disposed in a hollow area in the opaque hollow column body.
5. The optical assembly as claimed in claim 2 , wherein the display panel comprises an array substrate, a color film substrate, and liquid crystal, the array substrate and the color film substrate are cell-assembled together, and the liquid crystal is disposed between the array substrate and the color film substrate, and within the through-hole area, the display panel is further provided with an opaque hollow column body; and the first antireflection coating is disposed on a first surface of the color film substrate.
6. The optical assembly as claimed in claim 2 , wherein the display panel comprises an array substrate, a color film substrate, and liquid crystal, the array substrate and the color film substrate are cell-assembled together, and the liquid crystal is disposed between the array substrate and the color film substrate, and within the through-hole area, the display panel is further provided with an opaque hollow column body; and a third antireflection coating is disposed on a surface of the array substrate away from the camera.
7. The optical assembly as claimed in claim 2 , wherein the display panel comprises an array substrate, a color film substrate, and liquid crystal, the array substrate and the color film substrate are cell-assembled together, and the liquid crystal is disposed between the array substrate and the color film substrate, and within the through-hole area, the display panel is further provided with an opaque hollow column body; and the first antireflection coating is disposed on a first surface of the color film substrate, and a third antireflection coating is disposed on a surface of the array substrate away from the camera.
8. The optical assembly as claimed in claim 2 , wherein the second antireflection coating comprises a first light-transmissive film layer and a second light-transmissive film layer, the first light-transmissive film layer is disposed on a side surface of the second light-transmissive film layer away from the camera, and the second light-transmissive film layer is disposed on a transparent plate; and a refractive index of the first light-transmissive film layer is less than a refractive index of the second light-transmissive film layer, and the refractive index of the second light-transmissive film layer is greater than a refractive index of the transparent plate.
9. The optical assembly as claimed in claim 8 , wherein the transparent plate comprises at least one of the cover plate, the display panel, an array substrate, and a color film substrate.
10. The optical assembly as claimed in claim 8 , wherein a thickness of the first light-transmissive film layer is equal to odd-numbered times a quarter wavelength of the incident light.
11. The optical assembly as claimed in claim 8 , wherein a thickness of the second light-transmissive film layer is equal to odd-numbered times a quarter wavelength of the incident light.
12. The optical assembly as claimed in claim 8 , wherein a thickness of the first light-transmissive film layer is the same as that of the second light-transmissive film layer.
13. The optical assembly as claimed in claim 8 , wherein the refractive index of the first light-transmissive film layer is 1.3, and the refractive index of the second light-transmissive film layer is 1.5.
14. The optical assembly as claimed in claim 8 , wherein the material of the first light-transmissive film layer comprises magnesium fluoride, and the material of the second light-transmissive film layer comprises indium tin oxide.
15. A display apparatus, comprising a camera and the optical assembly as claimed in claim 1 .