Moire reducing optical substrates with irregular prism structures
US-9448411-B2 · Sep 20, 2016 · US
Light directing film
US2016266285A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016266285-A1 |
| Application number | US-201615147907-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 5, 2016 |
| Priority date | Jun 9, 2005 |
| Publication date | Sep 15, 2016 |
| Grant date | — |
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- Title
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Abstract
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The present invention discloses a light directing film comprising a first structured major surface, a second major surface opposite to the first structured major surface and a reference plane between the first structured major surface and the second major surface, wherein the reference plane is substantially perpendicular to the thickness direction of the light directing film, wherein the first structured major surface comprises a first prism element and a second prism element extending substantially in a first direction, wherein a first ridge of the first prism element has a first height relative to the reference plane and a second ridge of the second prism element has a second height relative to the reference plane, wherein the first height of the first ridge of the first prism element varies along the first direction. Preferably, the maximum of the first height is larger than the maximum of the second height.
First claim
Opening claim text (preview).
What is claimed is: 1 . A light directing film comprising a first structured major surface, a second major surface opposite to the first structured major surface and a reference plane between the first structured major surface and the second major surface, wherein the reference plane is substantially perpendicular to the thickness direction of the light directing film, wherein the first structured major surface comprises a first prism element and a second prism element extending substantially in a first direction, wherein a first ridge of the first prism element has a first height relative to the reference plane and a second ridge of the second prism element has a second height relative to the reference plane, wherein the first height of the first ridge of the first prism element varies along the first direction. 2 . The light directing film according to claim 1 , wherein the maximum of the first height is larger than the maximum of the second height. 3 . The light directing film according to claim 1 , wherein the second height of the second ridge of the second prism element is substantially constant along the first direction, wherein the maximum of the first height is larger than the second height. 4 . The light directing film according to claim 1 , wherein the second height of the second ridge of the second prism element varies along the first direction, wherein the maximum of the first height is larger than the maximum of the second height. 5 . The light directing film according to claim 4 , wherein the minimum of the first height is larger than the maximum of the second height.
Assignees
Inventors
Classifications
Prismatic sheet or layer; Brightness enhancement element, sheet or layer · CPC title
- G02B5/0231Primary
the surface having microprismatic or micropyramidal shape (macroscopic prism arrays G02B5/045) · CPC title
used in transmission · CPC title
the surface having an irregular structure (G02B5/0226 takes precedence) · CPC title
including a specially adapted diffusing, scattering or light controlling members · CPC title
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- What does patent US2016266285A1 cover?
- The present invention discloses a light directing film comprising a first structured major surface, a second major surface opposite to the first structured major surface and a reference plane between the first structured major surface and the second major surface, wherein the reference plane is substantially perpendicular to the thickness direction of the light directing film, wherein the first…
- Who is the assignee on this patent?
- Ubright Optronics Corp
- What technology area does this patent fall under?
- Primary CPC classification G02B5/0231. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Sep 15 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).