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The present invention is directed to a high speed spindle motor comprising a stator assembly including a stator having multiple conductors that create a plurality of magnetic fields when electrical current is conducted by the conductors and a body of a phase change material such as a thermoplastic s

The present invention is directed to a high speed spindle motor comprising a stator assembly including a stator having multiple conductors that create a plurality of magnetic fields when electrical current is conducted by the conductors and a body of a phase change material such as a thermoplastic substantially encapsulating the stator. A rotatable hub having a magnet connected thereto is in operable proximity to the stator. The high speed motor also includes a shaft, a bearing surrounding the shaft and one of the bearing or shaft being fixed to the stator assembly and the other of the bearing or shaft being fixed to the rotatable hub. Hard disc drives using the motor, and methods of developing and constructing the motor and hard disc drives are also disclosed.

대표청구항 ▼

The present invention is directed to a high speed spindle motor comprising a stator assembly including a stator having multiple conductors that create a plurality of magnetic fields when electrical current is conducted by the conductors and a body of a phase change material such as a thermoplastic s

The present invention is directed to a high speed spindle motor comprising a stator assembly including a stator having multiple conductors that create a plurality of magnetic fields when electrical current is conducted by the conductors and a body of a phase change material such as a thermoplastic substantially encapsulating the stator. A rotatable hub having a magnet connected thereto is in operable proximity to the stator. The high speed motor also includes a shaft, a bearing surrounding the shaft and one of the bearing or shaft being fixed to the stator assembly and the other of the bearing or shaft being fixed to the rotatable hub. Hard disc drives using the motor, and methods of developing and constructing the motor and hard disc drives are also disclosed. different angles toward the front from a light-emitting layer (1d) formed on a side surface of a LED element (1x) travels by being converted into a collimate light through a lens (5a) formed in the mold part (5). The collimate luminous flux (La) is outputted from spot light sources at points on the lens (5a), as viewed from a moving direction of a measuring plate (11x). By using an output light emitted parallel from the spot light sources in multiplicity formed on the lens (5a), measured is a moving velocity of a measuring plate (11x) forming fine slits (a-N). ns are made of a single substance. 8. The display according to claim 6, wherein the hole and electron injecting/transporting regions are made of multiple substances. 9. An electro-luminescent display comprising: a substrate; a plurality of layers on the substrate, wherein the plurality of layers include source and drain electrodes; a passivation layer on the substrate and covering the source and drain electrodes; a connect hole in the passivation layer and exposing the drain electrode; an anode electrode on the passivation layer and in contact with the drain electrode; an organic electro-luminescent layer in contact with portions of the passivation layer and covering the anode electrode; and a cathode electrode on the organic electro-luminescent layer. 10. The display according to claim 9, wherein the plurality of layers further comprises: an active layer on the substrate including a source region on a first end of the active layer, a drain region on a second end of the active layer, and a channel region at an approximate middle portion of the active layer and in between the drain region and the source region; a gate insulating layer on the channel region; a gate electrode on substantially the channel region such that the gate insulating layer is disposed between the gate electrode and the active layer; an insulating interlayer on the substrate including the gate electrode, wherein the insulating interlayer does not substantially cover the source and drain regions so that substantial portions of the source and drain regions are exposed; and the source and drain electrodes in contact electrically with the exposed portions of the source and drain regions, respectively. 11. The display according to claim 9, wherein the passivation layer is about 4000 .ANG. to 5000 .ANG. thick, and is made of an inorganic substance such as silicon oxide and silicon nitride. 12. The display according to claim 9, wherein the passivation layer includes an organic substance including one of benzocyclobutene and Spin On Glass having a thickness of about 1 μm to about 3 μm thick. 13. The display according to claim 9, wherein the electro-luminescent layer is about 1000 .ANG. to 2000 .ANG. thick. 14. The display according to claim 9, wherein the organic electro-luminescent layer includes a hole injecting/transporting region in contact with the anode electrode, an electron injecting/transporting region in contact with the cathode electrode, and a luminescent layer for emitting light. 15. The display according to claim 1, wherein the organic electro-luminescent layer covers the source electrode, the gate electrode and the drain electrode of the driving TFT. 16. The display according to claim 9, wherein the organic electro-luminescent layer covers the source electrode, a gate electrode and the drain electrode of the driving TFT. 17. The display according to claim 1, wherein the organic electro-luminescent layer contacts portions of the passivation layer and the anode electrode. 18. The display according to claim 9, wherein the organic electro-luminescent layer contacts portions of the passivation layer and the anode electrode. 19. An electro-luminescent display comprising: a substrate; a plurality of layers on the substrate, wherein the plurality of layers include source and drain electrodes; a passivation layer on the substrate and covering the source and drain electrodes; a connect hole in the passivation layer and exposing the drain electrode; an anode electrode on the passivation layer and in contact with the drain electrode; an organic electro-luminescent layer on portions of the passivation layer and covering the anode electrode; and a cathode electrode on the organic electrode-luminescent layer, wherein the organic electro-luminescent layer contacts portions of the passivation layer and the anode electrode. 20. The display according to claim 19, wherein the plurality of layers further comprises: an active layer on