Quantum dot color filter ink compositions and devices utilizing the same
US-2024192548-A1 · Jun 13, 2024 · US
Liquid crystal display apparatus
US8953118B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8953118-B2 |
| Application number | US-201013512673-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 26, 2010 |
| Priority date | Nov 30, 2009 |
| Publication date | Feb 10, 2015 |
| Grant date | Feb 10, 2015 |
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- Title
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Abstract
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A liquid crystal display apparatus according to an embodiment of the invention includes: a liquid crystal cell; polarizing plates placed on both sides of the liquid crystal cell; a light diffusing element provided outside of the polarizing plate on a viewer side; and a backlight unit provided outside of the polarizing plate on an opposite side of the viewer side. The backlight unit includes a collimated light source device that emits collimated light having a brightness half-value angle of 3° to 35° toward the liquid crystal cell, and a ratio Fw(BL)/Fw(FD) between a diffused light half-value angle Fw(FD) of the light diffusing element and the brightness half-value angle Fw(BL) of the collimated light is 0.5 or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. A liquid crystal display apparatus, comprising: a liquid crystal cell; polarizing plates placed on both sides of the liquid crystal cell; a light diffusing element provided outside of the polarizing plate on a viewer side; and a backlight unit provided outside of the polarizing plate on an opposite side of the viewer side, wherein the backlight unit comprises a collimated light source device that emits collimated light having a brightness half-value angle of 3° to 35° toward the liquid crystal cell, wherein a ratio Fw(BL)/Fw(FD) between a diffused light half-value angle Fw(FD) of the light diffusing element and the brightness half-value angle Fw(BL) of the collimated light is 0.5 or less, and wherein the light diffusing element comprises light diffusible fine particles. 2. A liquid crystal display apparatus according to claim 1 , which has a panel size of 32 inches or more. 3. A liquid crystal display apparatus according to claim 1 , wherein the liquid crystal cell comprises a VA mode liquid crystal cell or an IPS mode liquid crystal cell. 4. A liquid crystal display apparatus according to claim 2 , wherein the liquid crystal cell comprises a VA mode liquid crystal cell or an IPS mode liquid crystal cell.
Assignees
Inventors
Classifications
- G02F1/133606Primary
including a specially adapted diffusing, scattering or light controlling members · CPC title
Physics · mapped topic
Diffusing, scattering, diffracting elements (associated to illuminating devices G02F1/133606) · CPC title
the light controlling member including light directing or refracting elements, e.g. prisms or lenses · CPC title
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- What does patent US8953118B2 cover?
- A liquid crystal display apparatus according to an embodiment of the invention includes: a liquid crystal cell; polarizing plates placed on both sides of the liquid crystal cell; a light diffusing element provided outside of the polarizing plate on a viewer side; and a backlight unit provided outside of the polarizing plate on an opposite side of the viewer side. The backlight unit includes a c…
- Who is the assignee on this patent?
- Nishimura Akinori, Takemoto Hiroyuki, Fuchida Takehito, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification G02F1/133606. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 10 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).