Display device and operation method thereof
US-2024371313-A1 · Nov 7, 2024 · US
Power source circuit and liquid crystal display apparatus having the same
US8970575B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8970575-B2 |
| Application number | US-87482310-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 2, 2010 |
| Priority date | Jan 18, 2010 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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A power source circuit includes an inductor, a reservoir capacitor, and a switching control part that generates ON/OFF control signals to each of first and second switches. The first switch is connected between a first power voltage terminal and a first node to form a first current path between the first power voltage terminal and the first node in response to a driving signal of the switching control part. The second switch is connected between the first node and a second power voltage terminal to form a second current path between the first node and the second power voltage terminal in response to the driving signal. The inductor is connected to the first node to provide an average voltage between the first power voltage terminal and the second power voltage terminal. The capacitor is connected in parallel with the inductor to store the average voltage.
First claim
Opening claim text (preview).
What is claimed is: 1. A liquid crystal display (“LCD”) apparatus comprising: a data driving circuit comprising a first terminal, a second terminal and a third terminal, wherein a first power voltage is applied to the first terminal and a third power voltage is applied to the third terminal; and a power source circuit directly connected to the second terminal to provide a second power voltage to the second terminal, the power source circuit comprising: a first node; a first s…
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Electricity · mapped topic
- G09G3/3696Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8970575B2 cover?
- A power source circuit includes an inductor, a reservoir capacitor, and a switching control part that generates ON/OFF control signals to each of first and second switches. The first switch is connected between a first power voltage terminal and a first node to form a first current path between the first power voltage terminal and the first node in response to a driving signal of the switching …
- Who is the assignee on this patent?
- Lee Jong-Jae, Lee Chang-Soo, Samsung Display Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G09G3/3696. Mapped technology areas include Physics.
- 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).