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Brightness measuing method and system of device with backlight
US9218655B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9218655-B2 |
| Application number | US-201314047068-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 7, 2013 |
| Priority date | Jan 16, 2013 |
| Publication date | Dec 22, 2015 |
| Grant date | Dec 22, 2015 |
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Abstract
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A brightness measuring method of device with backlight is performed by a controlling device, for measuring legends of backlight provided by a backlight module of a device under test (DUT). The method includes turning on a uniform light source external to the DUT for illuminating the DUT; capturing and receiving an image of the DUT illuminated with uniform light as a base image; identifying a complete pattern of a to-be-measured legend in the base image; turning off the uniform light source and turning on the backlight of the DUT so as to illuminate the legend of DUT; capturing and receiving an image of the DUT illuminated with backlight as a comparison image, wherein the scope of the comparison image overlaps the scope of the base image; and calculating brightness values of a plurality of pixels in the comparison image whose positions overlap the positions of the complete pattern.
First claim
Opening claim text (preview).
What is claimed is: 1. A brightness measuring method of device with backlight, performed by a controlling device to measure a legend of backlight provided by a backlight module of a device under test (DUT), the method comprising: turning on a uniform light source external to the DUT so as to illuminate the DUT; indicating to capture an image of the DUT illuminated with the uniform light source as a base image; receiving the base image; identifying a complete pattern of a to-…
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Physics · mapped topic
Physics · mapped topic
- G06T7/001Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9218655B2 cover?
- A brightness measuring method of device with backlight is performed by a controlling device, for measuring legends of backlight provided by a backlight module of a device under test (DUT). The method includes turning on a uniform light source external to the DUT for illuminating the DUT; capturing and receiving an image of the DUT illuminated with uniform light as a base image; identifying a co…
- Who is the assignee on this patent?
- Lite On Electronics Guangzhou, Lite On Technology Corp
- What technology area does this patent fall under?
- Primary CPC classification G06T7/001. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 22 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).