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Methods and apparatus for backlighting dual modulation display devices
US9299293B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9299293-B2 |
| Application number | US-201214347209-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 12, 2012 |
| Priority date | Oct 13, 2011 |
| Publication date | Mar 29, 2016 |
| Grant date | Mar 29, 2016 |
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Abstract
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Methods and apparatus are provided for backlighting a dual modulation display device. Each type of light source comprises a multi-primary light source having two or more primary color light emitters having different primary color characteristics from corresponding primary color emitters of other types of light source. Methods may comprise receiving illumination target values for a plurality of locations on the front modulator corresponding to the plurality of light sources, each of the locations on the front modulator configured to be illuminated by two or more of the plurality of light sources, determining primary color drive values source based on the primary color characteristics for that primary color and the illumination target value for the location corresponding to that light source, and driving the primary color light emitters or each type of light source based on the primary color drive values.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for backlighting a dual modulation display device comprising a front modulator illuminated by a backlight comprising a plurality of light sources of two or more types, each type of light source comprising a multi-primary light source having two or more primary color light emitters having different primary color characteristics from corresponding primary color emitters of other types of light source, the multi-primary light source of each type of ligh…
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Physics · mapped topic
Physics · mapped topic
- G09G3/3413Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9299293B2 cover?
- Methods and apparatus are provided for backlighting a dual modulation display device. Each type of light source comprises a multi-primary light source having two or more primary color light emitters having different primary color characteristics from corresponding primary color emitters of other types of light source. Methods may comprise receiving illumination target values for a plurality of …
- Who is the assignee on this patent?
- Dolby Lab Licensing Corp, Dobly Lab Licensing Corp
- What technology area does this patent fall under?
- Primary CPC classification G09G3/3413. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 29 2016 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).