Backlight unit and liquid crystal display using the same
US-2015116379-A1 · Apr 30, 2015 · US
Display device
US2016293115A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016293115-A1 |
| Application number | US-201615088119-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 1, 2016 |
| Priority date | Apr 2, 2015 |
| Publication date | Oct 6, 2016 |
| Grant date | — |
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Abstract
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A liquid crystal display device includes a liquid crystal panel, a backlight panel and a backlight drive circuit which outputs drive current of the backlights, the duty ratio and the amplitude of which are changeable. The backlight drive circuit outputs the drive current based on duty ratio characteristics that the duty ratio is greater as the luminance of the backlights is higher and amplitude characteristics that is divided with a predetermined luminance as a boundary into the first and second regions, and that the change rate of the amplitude of the drive current with respect to the luminance is less than or equal to the predetermined change rate in the first region, and the change rate of the amplitude of the drive current with respect to the luminance is greater than the predetermined change rate.
First claim
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1 . A display device comprising; a display; a light source; and a controller that controls output of a drive signal to the light source based on duty ratio characteristics and amplitude characteristics corresponding to a luminance of the light source, wherein the amplitude characteristics are divided with a predetermined luminance of the light source as a boundary, into a first region that is less than or equal to the predetermined luminance, and a second region that is higher than the pr…
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Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G09G3/3413Primary
Physics · mapped topic
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- What does patent US2016293115A1 cover?
- A liquid crystal display device includes a liquid crystal panel, a backlight panel and a backlight drive circuit which outputs drive current of the backlights, the duty ratio and the amplitude of which are changeable. The backlight drive circuit outputs the drive current based on duty ratio characteristics that the duty ratio is greater as the luminance of the backlights is higher and amplitude…
- Who is the assignee on this patent?
- Funai Electric Co
- 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 Thu Oct 06 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).