1. A vacuum cleaner comprising:
a housing adapted for movement over a surface to be cleaned and having a suction nozzle and an agitator chamber defining an agitator chamber height;
a sole plate provided on a bottom of the housing and defining a suction nozzle inlet of the suction nozzle;
an agitator provided in the agitator chamber adjacent the suction nozzle;
a separating and collection assembly for separating and collecting debris;
a suction source in fluid communication with the suction nozzle and the separating and collection assembly for generating a working air stream from the suction nozzle to the separating and collection assembly;
a working air path fluidly connecting the suction nozzle and agitator chamber with the suction source; and
a suction channel forming a portion of the working air path and at least partially defined within the base housing by the sole plate, the suction channel comprising:
a channel inlet fluidly connected to a suction nozzle inlet and; and
a channel outlet fluidly connected to a downstream suction source;
wherein the channel inlet spans the width of the agitator chamber and defines a channel inlet height that is less than the agitator chamber height.
2. The vacuum cleaner of claim 1, wherein the channel inlet height is less than or equal to \xbc the agitator chamber height.
3. The vacuum cleaner of claim 1, wherein the suction channel defines a maximum height along the suction channel, between and including the channel inlet and the channel outlet, and the maximum height is less than or equal to \xbd the agitator chamber height.
4. The vacuum cleaner of claim 3, wherein the channel outlet defines the maximum height.
5. The vacuum cleaner of claim 1, wherein the channel outlet defines a channel outlet height that is greater than the channel inlet height.
6. The vacuum cleaner of claim 5, wherein the outlet height defines a maximum height of the suction channel.
7. The vacuum cleaner of claim 5, wherein the channel outlet height is less than the agitator chamber height.
8. The vacuum cleaner of claim 1, wherein the height of the suction channel is less than the height of the agitator chamber along the entire length of the suction channel from the channel inlet to the channel outlet.
9. The vacuum cleaner of claim 1, wherein the channel outlet comprises an elliptical shape.
10. The vacuum cleaner of claim 1, wherein the agitator chamber defines an agitator chamber cross-sectional area and the channel inlet defines a channel inlet cross-sectional area that is less than the agitator chamber cross-sectional area.
11. The vacuum cleaner of claim 1, wherein the sole plate comprises a wall defining a bottom wall of the suction channel.
12. The vacuum cleaner of claim 11, wherein the sole plate comprises opposed side walls extending upwardly from the bottom wall and defining side walls of the suction channel.
13. The vacuum cleaner of claim 1, wherein the suction channel is defined by at least one wall that tapers in a direction from the channel inlet to the channel outlet.
14. The vacuum cleaner of claim 1, and further comprising an upright handle assembly pivotally mounted to the housing and supporting the separating and collection assembly and the suction source.
15. The vacuum cleaner of claim 14, and further comprising a vacuum hose in fluid communication with the suction source and selectively removable from the upright handle assembly for above-the-floor cleaning, and an air bleed valve for adjusting the level of suction and air flow through the vacuum hose.
16. The vacuum cleaner of claim 1, wherein the separating and collection assembly comprises a filter assembly having a cavity for receiving multiple layers of filter media, wherein the filter assembly is configured for a predetermined arrangement of the multiple layers of filter media within the cavity.
17. A vacuum cleaner comprising:
a housing adapted for movement over a surface to be cleaned and having a suction nozzle and an agitator chamber defining an agitator chamber height;
an agitator provided in the agitator chamber adjacent the suction nozzle;
a separating and collection assembly for separating and collecting debris;
a suction source in fluid communication with the suction nozzle and the separating and collection assembly for generating a working air stream from the suction nozzle to the separating and collection assembly;
a working air path fluidly connecting the suction nozzle and agitator chamber with the suction source; and
a suction channel provided with the base housing and at least partially defining the working air path, the suction channel comprising:
a channel inlet fluidly connected to a suction nozzle inlet and; and
a channel outlet fluidly connected to a downstream suction source;
wherein the channel inlet spans the width of the agitator chamber and defines a channel inlet height that is less than the agitator chamber height.
18. The vacuum cleaner of claim 17, and further comprising a cover provided on a bottom of the housing and at least partially defining a lower portion of the suction channel.
19. The vacuum cleaner of claim 18, wherein the cover comprises a sole plate defining a suction nozzle inlet of the suction nozzle.
20. The vacuum cleaner of claim 18, wherein the cover comprises a unitary component removably mounted to the base housing to access both the suction channel and the agitator.
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. An organic light-emitting display apparatus, comprising:
a substrate;
a first passivation layer formed on the substrate;
at least one of color filters formed on the first passivation layer;
an overcoat layer that covers the color filter;
a second passivation layer that is formed on the first passivation layer and surrounds the overcoat layer;
a first electrode formed on the second passivation layer;
a second electrode facing the first electrode; and
an organic layer disposed between the first electrode and the second electrode.
2. The organic light-emitting display apparatus of claim 1, wherein the color filter is one of red, green, and blue color filters.
3. The organic light-emitting display apparatus of claim 1, further comprising a polarizing film on a surface of the substrate.
4. The organic light-emitting display apparatus of claim 1, further comprising a black matrix in which optical transmission regions and optical blocking regions are divided on the second passivation layer.
5. The organic light-emitting display apparatus of claim 1, further comprising a black matrix in which optical transmission regions and optical blocking regions are divided between the substrate and the first passivation layer.
6. The organic light-emitting display apparatus of claim 1, further comprising a pixel defining layer in which a pixel region and a non-pixel region are divided on the second passivation layer.
7. The organic light-emitting display apparatus of claim 1, wherein the color filter has a thickness in a range from about 1 \u03bcm to about 5 \u03bcm.
8. The organic light-emitting display apparatus of claim 1, wherein the overcoat layer has a thickness in a range from about 1 \u03bcm to about 10 \u03bcm.
9. The organic light-emitting display apparatus of claim 1, wherein the first and second passivation layers comprise a SiOx group layer or a SiNx group layer.
10. The organic light-emitting display apparatus of claim 1, wherein the second passivation layer has a thickness in a range from about 500 \u212b to about 10,000 \u212b.
11. A method of manufacturing an organic light-emitting display apparatus, the method comprising steps of:
providing a substrate;
forming a first passivation layer on the substrate;
forming at least one color filter on the first passivation layer;
forming an overcoat layer that covers the color filter;
forming a second passivation layer on the first passivation layer to surround the overcoat layer;
forming a first electrode on the second passivation layer;
forming an organic layer on the first electrode; and
forming a second electrode on the organic layer.
12. The method of claim 11, wherein
the forming of the first passivation layer on the substrate comprises forming the first passivation layer by using a SiOx group layer or a SiNx group layer, and
the forming of the second passivation layer on the first passivation layer comprises forming the first passivation layer by using a SiOx group layer or a SiNx group layer.
13. The method of claim 11, wherein the forming of the second passivation layer comprises forming the second passivation layer to have a thickness in a range from about 500 \u212b to about 10,000 \u212b.
14. The method of claim 11, wherein the forming of at least one color filter on the first passivation layer comprises forming the color filter to have a thickness in a range from about 1 \u03bcm to about 5 \u03bcm.
15. The method of claim 11, wherein the forming of the overcoat layer comprises forming the overcoat layer to have a thickness in a range from about 1 \u03bcm to about 10 \u03bcm.
16. The method of claim 11, further comprising forming a pixel defining layer in which a pixel region and a non-pixel region are divided on the second passivation layer between the forming of the first electrode and the forming of the organic layer.
17. The method of claim 11, after the forming of the second electrode on the organic layer, further comprising additionally forming a polarizing film on a surface of the substrate.
18. The method of claim 11, further comprising forming a black matrix in which optical transmission regins and optical blocking regions are divided on the second passivation layer between the forming of the second passivation layer and the forming of the first electrode on the second passivation layer.
19. The method of claim 11, further comprising forming a black matrix in which optical transmission regins and optical blocking regions are divided on the substrate between the forming of the substrate and the forming of the first passivation layer on the substrate.