Liquid crystal display device
US-2020142234-A1 · May 7, 2020 · US
Curved display device
US11487149B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11487149-B2 |
| Application number | US-202117323515-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 18, 2021 |
| Priority date | May 20, 2020 |
| Publication date | Nov 1, 2022 |
| Grant date | Nov 1, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Provided is a curved display device capable of preventing or reducing local light leakage while achieving a certain contrast ratio. The curved display device includes a liquid crystal panel in a normally black mode. The liquid crystal panel includes a first polarizer, a liquid crystal cell, and a second polarizer in a stated order from a viewing surface side. The liquid crystal cell includes a first substrate including a transparent substrate, a liquid crystal layer, and a second substrate including a transparent substrate in a stated order from the viewing surface side. At least one of the first substrate or the second substrate is provided with a third polarizer on a surface of the transparent substrate closer to the liquid crystal layer.
First claim
Opening claim text (preview).
What is claimed is: 1. A curved display device comprising a liquid crystal panel in a normally black mode, the liquid crystal panel comprising a first polarizer, a liquid crystal cell, and a second polarizer in a stated order from a viewing surface side, the liquid crystal cell comprising a first substrate including a first transparent substrate, a liquid crystal layer, and a second substrate including a second transparent substrate in a stated order from the viewing surface side, the first substrate being provided with a third polarizer on a surface of the first transparent substrate closer to the liquid crystal layer and a first alignment film on a surface of the third polarizer closer to the liquid crystal layer, the second substrate being provided with a TFT layer on a surface of the second transparent substrate closer to the liquid crystal layer, a color filter layer on a surface of the TFT layer closer to the liquid crystal layer, an electrode layer on a surface of the color filter layer closer to the liquid crystal layer, and a second alignment film on a surface of the electrode layer closer to the liquid crystal layer, the liquid crystal layer including liquid crystal molecules, the liquid crystal molecules in the liquid crystal layer being horizontally aligned in a predetermined direction parallel to a transmission axis of the first polarizer or the second polarizer by the control force of the first and second alignment films with no voltage applied to the liquid crystal layer, and the third polarizer being a coated polarizer, wherein a transmission axis of the third polarizer is parallel to the transmission axis of the first polarizer. 2. The curved display device according to claim 1 , wherein the first transparent substrate has a thickness of 0.4 mm or more, and the second transparent substrate has a thickness of 0.2 mm or less. 3. The curved display device according to claim 1 , wherein the third polarizer contains lyotropic liquid crystals. 4. The curved display device according to claim 1 , wherein the third polarizer contains guest host liquid crystals. 5. A curved display device comprising a liquid crystal panel in a normally black mode, the liquid crystal panel comprising a first polarizer, a liquid crystal cell, and a second polarizer in a stated order from a viewing surface side, the liquid crystal cell comprising a first substrate including a first transparent substrate, a liquid crystal layer, and a second substrate including a second transparent substrate in a stated order from the viewing surface side, the first substrate being provided with a third polarizer on a surface of the first transparent substrate closer to the liquid crystal layer and a first alignment film on a surface of the third polarizer closer to the liquid crystal layer, the second substrate being provided with a TFT layer on a surface of the second transparent substrate closer to the liquid crystal layer, a color filter layer on a surface of the TFT layer closer to the liquid crystal layer, an electrode layer on a surface of the color filter layer closer to the liquid crystal layer, and a second alignment film on a surface of the electrode layer closer to the liquid crystal layer, the liquid crystal layer including liquid crystal molecules, the liquid crystal molecules in the liquid crystal layer being horizontally aligned in a predetermined direction parallel to a transmission axis of the first polarizer or the second polarizer by the control force of the first and second alignment films with no voltage applied to the liquid crystal layer, and the third polarizer being a coated polarizer, wherein a transmission axis of the third polarizer is parallel to the transmission axis of the second polarizer. 6. The curved display device according to claim 5 , wherein the first transparent substrate has a thickness of 0.4 mm or more, and the second transparent substrate has a thickness of 0.2 mm or less. 7. The curved display device according to claim 5 , wherein the third polarizer contains lyotropic liquid crystals. 8. The curved display device according to claim 5 , wherein the third polarizer contains guest host liquid crystals.
Assignees
Inventors
Classifications
- G02F1/133528Primary
Polarisers · CPC title
made of a mesogenic material · CPC title
inside the LC elements, i.e. between the cell substrates · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11487149B2 cover?
- Provided is a curved display device capable of preventing or reducing local light leakage while achieving a certain contrast ratio. The curved display device includes a liquid crystal panel in a normally black mode. The liquid crystal panel includes a first polarizer, a liquid crystal cell, and a second polarizer in a stated order from a viewing surface side. The liquid crystal cell includes a …
- Who is the assignee on this patent?
- Sharp Kk
- What technology area does this patent fall under?
- Primary CPC classification G02F1/133528. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 01 2022 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 9 related publications on this page (citations in our corpus or others sharing the same primary CPC).