Display device
US-2019302516-A1 · Oct 3, 2019 · US
Light adjustment device
US12099279B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12099279-B2 |
| Application number | US-202318231915-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 9, 2023 |
| Priority date | Feb 25, 2021 |
| Publication date | Sep 24, 2024 |
| Grant date | Sep 24, 2024 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A light adjustment device includes a plurality of liquid crystal cells each including a light adjustment region that polarizes light emitted from a light source, the liquid crystal cells being stacked in a direction in which the light is emitted. The liquid crystal cells each include a first substrate in which a plurality of first metal wires are provided, and a second substrate in which a plurality of second metal wires are provided and that sandwiches a liquid crystal layer with the first substrate.
First claim
Opening claim text (preview).
What is claimed is: 1. A light adjustment device comprising a plurality of liquid crystal cells each including a light adjustment region that polarizes light emitted from a light source, a peripheral region surrounding the light adjustment region, the liquid crystal cells being stacked in a direction in which the light is emitted, wherein the liquid crystal cells each include a first substrate in which a plurality of first metal wires are provided, and a second substrate in which a plurality of second metal wires are provided and that sandwiches a liquid crystal layer with the first substrate, the first metal wires are provided at intervals in a wiring layer on the first substrate, the second metal wires, which have an L-shaped structure and include slits, are provided at intervals in a wiring layer on the second substrate, and across an entire surface of the peripheral region outside the light adjustment region of at least one of the liquid crystal cells, light is blocked at gaps between the first metal wires by the second metal wires in the direction in which the light is emitted, and light is blocked at gaps between the second metal wires by the first metal wires in the direction in which the light is emitted. 2. The light adjustment device according to claim 1 , wherein across the entire surface of the peripheral region outside the light adjustment region of one liquid crystal cell closer to a light emission target among the liquid crystal cells, light is blocked at the gaps between the first metal wires by the second metal wires in the direction in which the light is emitted, and light is blocked at the gaps between the second metal wires by the first metal wires in the direction in which the light is emitted. 3. A light adjustment device in which a plurality of liquid crystal cells each including a light adjustment region that polarizes light emitted from a light source are stacked in a direction in which light is emitted, and a peripheral region surrounding the light adjustment region, wherein the liquid crystal cells each include a first substrate in which a plurality of first metal wires are provided, and a second substrate in which a plurality of second metal wires are provided and that sandwiches a liquid crystal layer with the first substrate, the first metal wires are provided at intervals in a wiring layer on the first substrate, the second metal wires, which have an L-shaped structure and include slits, are provided at intervals in a wiring layer on the second substrate, and across an entire surface of the peripheral region outside the light adjustment region of at least one of the liquid crystal cells, a light-shielding layer is provided on a substrate closer to a light emission target among the first and second substrates. 4. The light adjustment device according to claim 3 , wherein across the entire surface of the peripheral region outside the light adjustment region of one liquid crystal cell closer to a light emission target among the liquid crystal cells, a light-shielding layer is provided on a substrate closer to the light emission target among the first and second substrates.
Assignees
Inventors
Classifications
Conductors connecting electrodes to cell terminals · CPC title
Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element · CPC title
- G02F1/0136Primary
for the control of polarisation, e.g. state of polarisation [SOP] control, polarisation scrambling, TE-TM mode conversion or separation (G02F1/0353 takes precedence) · CPC title
Multilayer wirings · CPC title
Dielectric stack polarisers · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US12099279B2 cover?
- A light adjustment device includes a plurality of liquid crystal cells each including a light adjustment region that polarizes light emitted from a light source, the liquid crystal cells being stacked in a direction in which the light is emitted. The liquid crystal cells each include a first substrate in which a plurality of first metal wires are provided, and a second substrate in which a plur…
- Who is the assignee on this patent?
- Japan Display Inc
- What technology area does this patent fall under?
- Primary CPC classification G02F1/0136. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Sep 24 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).