Light-emitting device
US-9030105-B2 · May 12, 2015 · US
Light emitting apparatus, driving circuit of light emitting element, and driving method
US9167635B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9167635-B2 |
| Application number | US-201314030710-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 18, 2013 |
| Priority date | Sep 20, 2012 |
| Publication date | Oct 20, 2015 |
| Grant date | Oct 20, 2015 |
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Abstract
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A light emitting apparatus includes a light emitting element, a driving circuit which has a driving transistor having a gate, a drain, and a source, and a capacitor having one end connected to the gate, a power line, and first and second voltage lines, and, in a period in which the gate and the drain are short-circuited and the drain and the light emitting element are blocked, the source is connected to the first voltage line and the other end of the capacitor is connected to the second voltage line to hold a voltage in the capacitor, and, in a period in which the gate and the drain are disconnected and the drain and the light emitting element are connected, the source is connected to the power line, and the other end of the capacitor is connected to the source to supply a current to the light emitting element.
First claim
Opening claim text (preview).
What is claimed is: 1. A light emitting apparatus comprising: a light emitting element; a driving circuit including a driving transistor, a first switch provided between a gate and a drain of the driving transistor, a second switch provided between the drain of the driving transistor and one end of the light emitting element and a capacitor one end of which is connected to the gate of the driving transistor; a power line configured to supply a power source voltage to the drivi…
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Frequently asked questions
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- What does patent US9167635B2 cover?
- A light emitting apparatus includes a light emitting element, a driving circuit which has a driving transistor having a gate, a drain, and a source, and a capacitor having one end connected to the gate, a power line, and first and second voltage lines, and, in a period in which the gate and the drain are short-circuited and the drain and the light emitting element are blocked, the source is con…
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification H05B33/08. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 20 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).