Apparatus and method for displaying data in portable terminal
US-2015379779-A1 · Dec 31, 2015 · US
Power calibration of multiple light sources in a display screen
US9053659B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9053659-B2 |
| Application number | US-201113154387-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 6, 2011 |
| Priority date | Jun 7, 2010 |
| Publication date | Jun 9, 2015 |
| Grant date | Jun 9, 2015 |
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Abstract
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A display device with multiple light sources includes a detector that dynamically measures output intensities of the light sources as the light sources are producing light to cause an image to be formed on a display screen. A controller for the display device compares the measured output intensities with desired output intensities determined from factory-calibrated correlation values and adjusts the inputs to the light sources to compensate for drift and other similar effects, so that brightness uniformity among the multiple light sources can be achieved.
First claim
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We claim: 1. A light-based display device, comprising: a display screen; pixels disposed in the display screen; light sources for producing a first light that is conveyed to the pixels, wherein the pixels emit a second light distinct from the first light; a detector positioned on a light source side of the pixels, wherein the detector measures output intensity of the first light produced by one or more of the light sources as correlated to an input current to the one or more…
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Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9053659B2 cover?
- A display device with multiple light sources includes a detector that dynamically measures output intensities of the light sources as the light sources are producing light to cause an image to be formed on a display screen. A controller for the display device compares the measured output intensities with desired output intensities determined from factory-calibrated correlation values and adjust…
- Who is the assignee on this patent?
- Butler Chris, Budni Anand, Prysm Inc
- What technology area does this patent fall under?
- Primary CPC classification G09G3/02. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jun 09 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).