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公开(公告)号：US20240012184A1
公开(公告)日：2024-01-11
申请号：US18205567
申请日：2023-06-05
发明人： Wen-Feng Cheng
CPC分类号： G02B5/0231 , G02B5/045 , G02B5/0226 , H01L33/58
摘要： An optical film comprising a first surface and a second surface is provided and the first surface and the second surface face in opposite directions. The first surface is disposed with a plurality of first microstructures and a plurality of second microstructures, which are closely adjacent to each other. The first microstructures are upwardly convex quadrangular pyramid structures or triangular pyramid structures, while the second microstructures are downwardly concave quadrangular pyramid structures or triangular pyramid structures.
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公开(公告)号：US11650454B2
公开(公告)日：2023-05-16
申请号：US17357945
申请日：2021-06-24
发明人： Wen-Feng Cheng
IPC分类号： G02F1/13357 , G02F1/1335
CPC分类号： G02F1/133603 , G02F1/133607
摘要： A backlight module is provided. The backlight module includes a substrate; a plurality of light-emitting elements, disposed on the substrate along a first direction and a second direction; and at least one optical film, including: a first surface, having a plurality of cone structures, top points of the cone structures being arranged to form a plurality of first ridges. In addition, an angle is between the first ridge and the first direction; and a second surface, corresponding to the first surface and toward the substrate, the plurality of light-emitting elements being between the substrate and the second surface.
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公开(公告)号：US20220252937A1
公开(公告)日：2022-08-11
申请号：US17357945
申请日：2021-06-24
发明人： Wen-Feng Cheng
IPC分类号： G02F1/13357 , G02F1/1335
摘要： A backlight module is provided. The backlight module includes a substrate; a plurality of light-emitting elements, disposed on the substrate along a first direction and a second direction; and at least one optical film, including: a first surface, having a plurality of cone structures, top points of the cone structures being arranged to form a plurality of first ridges. In addition, an angle is between the first ridge and the first direction; and a second surface, corresponding to the first surface and toward the substrate, the plurality of light-emitting elements being between the substrate and the second surface.
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公开(公告)号：US20210088712A1
公开(公告)日：2021-03-25
申请号：US17023401
申请日：2020-09-17
发明人： Wen-Feng Cheng
IPC分类号： F21V8/00
摘要： An optical film and a backlight module are provided. The optical film includes a first surface and a second surface. The first surface includes a plurality of triangular pyramid structures, the triangular pyramid structure has a vertex, and the vertex extends toward a second surface. The second surface includes a plurality of orthogonal curved structures.
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公开(公告)号：US20240134225A1
公开(公告)日：2024-04-25
申请号：US18382530
申请日：2023-10-22
发明人： Wen-Feng Cheng
IPC分类号： G02F1/1335 , G02F1/13357 , H04N9/31
CPC分类号： G02F1/13355 , G02F1/133606 , H04N9/3105
摘要： An optical film, display module, and display screen, wherein the optical film comprises a main body, multiple microstructures, and an opaque layer. The microstructures are positioned on one side of the main body, and these microstructures are protruding arcuate structures. The opaque layer is affixed to the main body and is set opposite the microstructures on the other side of the main body, the opaque layer includes multiple apertures. Wherein, the center point of the apertures overlaps with the center point of the microstructures on a projection plane. Wherein, the equivalent diameter of the apertures divided by the equivalent diameter of the microstructures is less than or equal to 0.3, the equivalent diameter of the microstructures divided by the thickness of the main body is less than or equal to 1.3, and greater than or equal to 0.7. Wherein, the opaque layer is oriented towards the light source. The beneficial effect is that it can produce better collimated light, further improving the performance of the display module.
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公开(公告)号：US11333820B2
公开(公告)日：2022-05-17
申请号：US17023401
申请日：2020-09-17
发明人： Wen-Feng Cheng
IPC分类号： F21V8/00
摘要： An optical film and a backlight module are provided. The optical film includes a first surface and a second surface. The first surface includes a plurality of triangular pyramid structures, the triangular pyramid structure has a vertex, and the vertex extends toward a second surface. The second surface includes a plurality of orthogonal curved structures.
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公开(公告)号：US11347103B1
公开(公告)日：2022-05-31
申请号：US17523942
申请日：2021-11-11
发明人： Wen-Feng Cheng
IPC分类号： G02F1/13357 , G02F1/1335
摘要： A backlight module includes that of: a substrate; a plurality of light-emitting elements, disposed on the substrate along a first direction and a second direction; and at least one optical film, comprising: a first surface, having a plurality of microstructures, the microstructures being parallel to each other, every microstructure having a first ridge, and an angle being between the first ridge and the first direction; and a second surface, corresponding to the first surface and toward the substrate, the plurality of light-emitting elements being between the substrate and the second surface; wherein a distance X is between the light-emitting element and the other light-emitting element that is adjacent to the light-emitting element along the first direction, and a distance Y is between the light-emitting element and the other light-emitting element that is adjacent to the light-emitting element along the second direction, hence a range of the angle is: ( tan - 1 Y X ) - 10 ° ≤ θ ≤ ( tan - 1 Y X ) + 10 ° .
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公开(公告)号：US20240231145A9
公开(公告)日：2024-07-11
申请号：US18382530
申请日：2023-10-23
发明人： Wen-Feng Cheng
IPC分类号： G02F1/1335 , G02F1/13357 , H04N9/31
CPC分类号： G02F1/13355 , G02F1/133606 , H04N9/3105
摘要： An optical film, display module, and display screen, wherein the optical film comprises a main body, multiple microstructures, and an opaque layer. The microstructures are positioned on one side of the main body, and these microstructures are protruding arcuate structures. The opaque layer is affixed to the main body and is set opposite the microstructures on the other side of the main body, the opaque layer includes multiple apertures. Wherein, the center point of the apertures overlaps with the center point of the microstructures on a projection plane. Wherein, the equivalent diameter of the apertures divided by the equivalent diameter of the microstructures is less than or equal to 0.3, the equivalent diameter of the microstructures divided by the thickness of the main body is less than or equal to 1.3, and greater than or equal to 0.7. Wherein, the opaque layer is oriented towards the light source. The beneficial effect is that it can produce better collimated light, further improving the performance of the display module.
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