Load drive circuit, light emitting diode driver, and display device
US-2024397595-A1 · Nov 28, 2024 · US
Apparatus for driving light emitting diode array and liquid crystal display device using the same
US8970472B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8970472-B2 |
| Application number | US-201314062541-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 24, 2013 |
| Priority date | Dec 18, 2012 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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- Title
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Abstract
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Disclosed are an apparatus for driving a light emitting diode (LED) array and an LCD device using the same. The apparatus for driving the LED array includes a current amount setter configured to have a resistance value which varies according to a selection signal inputted from an external system, and a controller configured to generate a driving voltage and a driving current by using an input voltage inputted from the external system and the resistance value set by the current amount setter, and supply the driving voltage and the driving current to the LED array.
First claim
Opening claim text (preview).
What is claimed is: 1. An apparatus for driving a light emitting diode (LED) array, comprising: a current amount setter configured to vary a voltage at a node or a current in the node of the current amount setter according to a selection signal from an external system; and a controller coupled to the current amount setter and the LED array, the controller comprising: a power supplier connected to the node of the current amount setter and configured to adjust a level of current…
Assignees
Inventors
Classifications
- H05B45/44Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H05B47/10Primary
Electricity · mapped topic
- G02F1/133603Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US8970472B2 cover?
- Disclosed are an apparatus for driving a light emitting diode (LED) array and an LCD device using the same. The apparatus for driving the LED array includes a current amount setter configured to have a resistance value which varies according to a selection signal inputted from an external system, and a controller configured to generate a driving voltage and a driving current by using an input v…
- Who is the assignee on this patent?
- Lg Display Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H05B45/44. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 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).