1. An air distribution arrangement for distributing a flow of air produced by an HVAC system of a vehicle, the air distribution arrangement comprising:
a body having an upper surface and a lower surface, the body configured for attachment to the vehicle downstream of the flow of air;
a channel defined in the upper surface, the channel disposed to receive a first portion of the flow of air and configured to guide the first portion along a length of the upper surface, the channel having a generally U-shaped configuration in cross section along substantially an entire length of the channel, an upper portion of the channel being open to a passenger compartment of the vehicle and free of a covering along substantially the entire length of the channel, and an inner portion of the channel being substantially free of structure along substantially the entire length of the channel; and
a duct associated with the lower surface and extending along a path corresponding with the length, the duct disposed to receive a second portion of the flow of air and configured to guide the second portion along the path, the duct being in fluid communication with the channel at a plurality of locations along the path,
wherein the channel and the duct are aligned with one another such that the channel and the duct direct the first portion and the second portion, respectively, in substantially the same direction along the body.
2. The air distribution arrangement of claim 1, wherein the channel is integral with the body.
3. The air distribution arrangement of claim 1, wherein the body comprises an upper surface of a vehicle instrument panel.
4. The air distribution arrangement of claim 1 wherein a plurality of holes are defined along the path, the plurality of holes providing fluid communication between the channel and the duct.
5. The air distribution arrangement of claim 4, wherein the plurality of holes are arranged along substantially an entire portion of the path.
6. The air distribution arrangement of claim 1, wherein the duct comprises a channel member having a U-shaped profile across a lateral cross section of the duct, wherein an upper end of the duct is closed off by the lower surface.
7. The air distribution arrangement of claim 1, wherein the channel includes a disrupting body configured to direct the first portion out of the channel.
8. The air distribution arrangement of claim 7, wherein the disrupting body comprises a ramp.
9. The air distribution arrangement of claim 7, wherein the disrupting body is disposed proximate an end of the length.
10. The air distribution arrangement of claim 7, wherein the disrupting body is configured for selective adjustment between a retracted position and a deployed position.
11. The air distribution arrangement of claim 1, wherein the body defines a duct opening and wherein an end of the duct is in fluid communication with the duct opening, whereby the second portion of the flow of air vents through the duct opening.
12. The air distribution arrangement of claim 11, further comprising a cover member disposed proximate the duct opening and configured to selectively close the duct opening.
13. The air distribution arrangement of claim 1, further comprising a facade member positioned above the body and configured to at least partially conceal the channel.
14. The air distribution arrangement of claim 13, wherein the facade member includes a register opening disposed to correspond with an end of the channel.
15. A method of distributing a flow of air produced by an HVAC system of a vehicle, the method comprising:
guiding a first portion of the flow of air with a channel defined in an upper surface of an instrument panel along a length of the upper surface of the instrument panel of the vehicle, the channel having a generally U-shaped configuration in cross section along substantially an entire length of the channel, an upper portion of the channel being open to a passenger compartment of the vehicle and free of a covering along substantially the entire length of the channel, and an inner portion of the channel being substantially free of structure along substantially the entire length of the channel;
guiding a second portion of the flow of air with a duct along a path below the upper surface of the instrument panel, the path corresponding with the length, and the duct being in fluid communication with the channel at a plurality of locations along the path;
entraining the first portion of the flow of air in the channel with the second portion of the flow of air flowing through the duct.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A display device comprising:
a pixel comprising:
a first current source circuit;
a second current source circuit;
a first switch portion electrically connected to the first current source circuit in series between a light emitting element and a first line; and
a second switch portion electrically connected to the second current source circuit in series between the light emitting element and the first line;
wherein each of the first current source circuit and the second current source circuit comprises:
a first transistor,
a second transistor which is electrically connected to the first transistor in series between the first line and the light emitting element, and whose gate electrode is electrically connected to a gate electrode of the first transistor;
a first means for holding a gate voltage of the first transistor;
a second means for selecting an electrical connection between the gate electrode of the first transistor and a drain region of the first transistor;
a third means for selecting an electrical connection between a second line and one of a source region of the first transistor and the drain region of the first transistor, and selecting an electrical connection between a third line and the other of the source region of the first transistor and the drain region of the first transistor.
2. A display device according to claim 1, wherein an output current of the first current source circuit is set to be different from an output current of the second current source circuit.
3. A display device according to claim 1, wherein a control current inputted to the second line of the first current source circuit is set to be different from a control current inputted to the second line of the second current source circuit.
4. A display device according to claim 1,
wherein the first line is a power supply line,
wherein the second line is a current line, and
wherein the third line is a current reference line.
5. A display device comprising:
a pixel comprising:
a first current source circuit;
a second current source circuit;
a first switch portion electrically connected to the first current source circuit in series between a light emitting element and a first line; and
a second switch portion electrically connected to the second current source circuit in series between the light emitting element and the first line;
wherein each of the first current source circuit and the second current source circuit comprises:
a first transistor;
a second transistor;
a third transistor;
a fourth transistor;
a fifth transistor; and
a capacitor element,
wherein one electrode of the capacitor element is electrically connected to a source region of the first transistor, and the other electrode of the capacitor element is electrically connected to a gate electrode of the first transistor,
wherein the first transistor and the second transistor are electrically connected in series between the first line and the light emitting element,
wherein a gate electrode of the second transistor is electrically connected to the gate electrode of the first transistor,
wherein the gate electrode of the first transistor is electrically connected to a drain region of the first transistor through a source region and a drain region of the fifth transistor, and
wherein the current line a second line is electrically connected to a third line through the source region and the drain region of the first transistor, a source region and a drain region of the third transistor, a source region and a drain region of the fourth transistor.
6. A display device according to claim 5, wherein an output current of the first current source circuit is set to be different from an output current of the second current source circuit.
7. A display device according to claim 5, wherein a control current inputted to the second line of the first current source circuit is set to be different from a control current inputted to the second line of the second current source circuit.
8. A display device according to claim 5,
wherein the first line is a power supply line,
wherein the second line is a current line, and
wherein the third line is a current reference line.
9. A display device comprising:
a pixel comprising:
a first current source circuit;
a second current source circuit;
a first switch portion electrically connected to a first current source circuit in series between a light emitting element and the first line; and
a second switch portion electrically connected to the second current source circuit in series between the light emitting element and the first line;
wherein each of the first current source circuit and the second current source circuit comprises:
a first transistor;
a second transistor;
a third transistor;
a fourth transistor;
a fifth transistor; and
a capacitor element,
wherein one electrode of the capacitor element is electrically connected to a source region of the first transistor, and the other electrode is electrically connected to a gate electrode of the first transistor,
wherein the first transistor and the second transistor are electrically connected in series between the first line and the light emitting element,
wherein a gate electrode of the second transistor is electrically connected to the gate electrode of the first transistor,
wherein the gate electrode of the first transistor is electrically connected to a drain region of the first transistor through a source region and a drain region of the third transistor and a source region and a drain region of the fifth transistor, and
wherein a second line is electrically connected to a third line through the source region and the drain region of the first transistor, the source region and the drain region of the third transistor, and a source region and a drain region of the fourth transistor.
10. A display device according to claim 9, wherein an output current of the first current source circuit is set to be different from an output current of the second current source circuit.
11. A display device according to claim 9, wherein a control current inputted to the second line of the first current source circuit is set to be different from a control current inputted to the second line of the second current source circuit.
12. A display device according to claim 9,
wherein the first line is a power supply line,
wherein the second line is a current line, and
wherein the third line is a current reference line.
13. A display device comprising:
at least one light emitting element;
a first current source circuit electrically connected to the light emitting element through a first switch;
a second current source circuit electrically connected to the light emitting element through a second switch;
a power source line wherein said first and second current source circuits are electrically connected between the light emitting element and the power source line in parallel,
wherein each of the first and second current source circuits comprises:
a first terminal and a second terminal;
a first transistor and a second transistor electrically connected in series between the first terminal and the second terminal, wherein one of a source region and a drain region of the first transistor is electrically connected to the first terminal, and the other of the source region and the drain region of the first transistor is electrically connected to one of a source region and a drain region of the second transistor;
a third transistor electrically connected between a current line and a gate electrode of the second transistor;
a fourth transistor wherein one of a source region and a drain region of the fourth transistor is electrically connected to a node between the first and second transistors, and the other of the source region and the drain region of the fourth transistor is electrically connected to the current line;
a fifth transistor electrically connected between a current reference line and the one of the source region and the drain region of the first transistor;
a capacitor electrically connected between a gate electrode of the first transistor and one of the source region and the drain region of the first transistor.
14. A display device according to claim 13, wherein an output current of the first current source circuit is set to be different from an output current of the second current source circuit.
15. A display device according to claim 13, wherein a control current inputted to the current line of the first current source circuit is set to be different from a control current inputted to the current line of the second current source circuit.