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Method and apparatus for controlling the partitions of a backlight unit of a 3D display apparatus
US8947342B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8947342-B2 |
| Application number | US-201113025670-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 11, 2011 |
| Priority date | Feb 11, 2010 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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A method and apparatus for controlling a backlight unit of a three-dimensional (3D) display apparatus receiving a 3D video sequence is provided. The method includes determining the image brightness level of the 3D video sequence displayed on a liquid crystal display (LCD) unit, for each of a plurality of partial regions of the LCD unit to which a plurality of sub-blocks of the backlight unit emit light; determining turn-on times of the plurality of sub-blocks of the backlight unit, based on the image brightness of each of the partial regions of the LCD unit; and determining turn-on periods of the plurality of sub-blocks of the backlight unit by synchronizing with a switching period between a set including a left visual point frame and a right visual point frame of the 3D video sequence.
First claim
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What is claimed is: 1. A method of controlling a backlight unit of a three-dimensional (3D) display apparatus formed of a liquid crystal display (LCD) unit including a plurality of partial units, a backlight unit and a light guide plate, the method comprising: inputting a 3D video sequence to the 3D display apparatus; determining an image brightness level of the 3D video sequence displayed on the LCD unit, for each of partial regions of the LCD unit to which a plurality of sub-b…
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- What does patent US8947342B2 cover?
- A method and apparatus for controlling a backlight unit of a three-dimensional (3D) display apparatus receiving a 3D video sequence is provided. The method includes determining the image brightness level of the 3D video sequence displayed on a liquid crystal display (LCD) unit, for each of a plurality of partial regions of the LCD unit to which a plurality of sub-blocks of the backlight unit em…
- Who is the assignee on this patent?
- Park Sang-Moo, Jung Jong-Hoon, Kim Dae-Sik, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G09G3/342. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 03 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).