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Video display device that stretches a video signal and a signal of the light source and television receiving device
US8964124B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8964124-B2 |
| Application number | US-201214357231-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 27, 2012 |
| Priority date | Nov 11, 2011 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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A video display device increases a feeling of brightness and expresses a video with high contrast by detecting a part of a video signal that emits light, enhancing the display luminance of the light-emitting part, and displaying the part. A light emission detection portion ( 1 ) uses a prescribed feature quantity related to the brightness of an input video signal, predetermines the light emission quantity for the video signal on the basis of the relationship with the feature quantity, and detects the light emission quantity for each input video signal frame from the feature quantity. A backlight luminance stretch portion ( 3 ) stretches the light source luminance of the backlight according to the light emission quantity detected. A video signal luminance stretch portion ( 6 ) stretches the video signal according to the light emission quantity or the luminance distribution of the input video signal.
First claim
Opening claim text (preview).
The invention claimed is: 1. A video display device comprising: a display portion for displaying an input video signal; a light source for illuminating the display portion; and a control portion for controlling the display portion and the light source, wherein the control portion detects a light-emitting part of the input video signal based on a luminance value of the input video signal or other feature quantity, and stretches a video signal of the light-emitting part to display o…
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Electricity · mapped topic
Physics · mapped topic
Physics · mapped topic
- G09G3/3406Primary
Physics · mapped topic
- G09G3/34Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US8964124B2 cover?
- A video display device increases a feeling of brightness and expresses a video with high contrast by detecting a part of a video signal that emits light, enhancing the display luminance of the light-emitting part, and displaying the part. A light emission detection portion ( 1 ) uses a prescribed feature quantity related to the brightness of an input video signal, predetermines the light emissi…
- Who is the assignee on this patent?
- Fujine Toshiyuki, Noutoshi Tomoharu, Shiraya Yoji, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G09G3/3406. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 24 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).