Display device and method for manufacturing display device
US-2024231157-A9 · Jul 11, 2024 · US
Photo-aligning exposure device
US2020379282A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020379282-A1 |
| Application number | US-201816636784-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 6, 2018 |
| Priority date | Aug 9, 2017 |
| Publication date | Dec 3, 2020 |
| Grant date | — |
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- Title
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Abstract
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A photo-aligning exposure device that performs a photo-aligning process by performing scanning exposure on an irradiated plane in one direction includes: a light source that emits scattering light toward the irradiated plane; an optical filter that selectively emits an ultraviolet ray out of the light emitted from the light source; and an irradiation angle restriction member that selectively emits light with which irradiation is diagonally performed with respect to the scanning direction out of the light emitted from the optical filter. The irradiation angle restriction member has a plurality of flat-plate-shaped light direction restriction plates slanted at a certain angle with respect to the irradiated plane and arrayed in parallel along the scanning direction at a predetermined distance.
First claim
Opening claim text (preview).
1 . A photo-aligning exposure device that performs a photo-aligning process by performing scanning exposure on an irradiated plane in one direction, the photo-aligning exposure device comprising: a light source that emits scattering light toward the irradiated plane; an optical filter that selectively emits an ultraviolet ray out of the light emitted from the light source; and an irradiation angle restriction member that selectively emits light with which irradiation is diagonally performed with respect to the scanning direction out of the light emitted from the optical filter, wherein the irradiation angle restriction member has a plurality of flat-plate-shaped light direction restriction plates slanted at a certain angle with respect to the irradiated plane and arrayed in parallel along the scanning direction at a predetermined distance. 2 . The photo-aligning exposure device according to claim 1 , wherein the flat-plate-shaped light direction restriction plates have ultraviolet ray absorbing planes formed on both sides of the flat-plate-shaped light direction restriction plate. 3 . The photo-aligning exposure device according to claim 1 , wherein the light source is arranged in a vertically long form in which the scanning direction is set as a longitudinal direction. 4 . The photo-aligning exposure device according to claim 1 , wherein the light source is arranged in a horizontally long form in which a direction that intersects with the scanning direction is set as a longitudinal direction. 5 . The photo-aligning exposure device according to claim 1 , wherein a polarizer is arranged between the irradiation angle restriction member and the irradiated plane. 6 . The photo-aligning exposure device according to claim 1 , wherein the optical filter is arranged in parallel with the irradiated plane, and a selective wavelength setting value of the optical filter is a value shifted to a long wavelength side with respect to a target exposure wavelength.
Assignees
Inventors
Classifications
by light irradiation, e.g. linearly polarised light photo-polymerisation · CPC title
- G02F1/1303Primary
Apparatus specially adapted to the manufacture of LCDs · CPC title
- G03F7/70191Primary
Optical correction elements, filters or phase plates for controlling intensity, wavelength, polarisation, phase or the like · CPC title
Exposure; Apparatus therefor (photographic printing apparatus for making copies G03B27/00) · CPC title
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- What does patent US2020379282A1 cover?
- A photo-aligning exposure device that performs a photo-aligning process by performing scanning exposure on an irradiated plane in one direction includes: a light source that emits scattering light toward the irradiated plane; an optical filter that selectively emits an ultraviolet ray out of the light emitted from the light source; and an irradiation angle restriction member that selectively em…
- Who is the assignee on this patent?
- V Tech Co Ltd, Sharp Kk
- What technology area does this patent fall under?
- Primary CPC classification G02F1/1303. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Dec 03 2020 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).