Lg Display Co., Ltd.

Lg Philips Lcd Co., Inc.

Iljin Global Co., Ltd

Ajou University Industry-academic Cooperation Foundation

Yun Ho Jung

Young Joo Kim

Hyun Sik Seo

Jaesung You

Young Dug Kim

Bo Young Jang

Jong Keun Lim

Moon Gu Lee

Yong Ho Jeon

Chang Ho Jung

Jung Park

A wheel bearing assembly includes a wheel hub, at least one inner ring, an outer ring, and one or more rolling elements. An accommodation space may be formed inward of a vehicle-body-side end portion of the wheel hub to accommodate a constant velocity joint, and a plurality of recesses for accommodating rotating elements of the constant velocity joint are formed on an inner peripheral surface of the accommodation space to be spaced apart from each other along a circumferential direction. A first heat-treated hardened portion may be formed on the inner peripheral surface of the accommodation space, and may be formed to have portions with which the rotating elements of the constant velocity joint is brought into contact. A second heat-treated hardened portion may formed on an outer peripheral surface of the wheel hub. The first and second heat-treated hardened portions may not overlap each other.

Wheel bearing assembly

A wheel bearing assembly may include a wheel hub having a hub flange; one or more inner rings configured to be mounted to one side of the wheel hub; an outer ring provided radially outward of the one or more inner rings; a spacer coupled to a vehicle-body-side end portion of an inner ring disposed on a vehicle-body-side; and one or more rolling elements provided between the one or more inner rings and the outer ring. The one or more inner rings may be configured to be held on the wheel hub by plastically deforming a vehicle-body-side end portion of the wheel hub in a radially outward direction. A plurality of recesses for accommodating rotating elements of a constant velocity joint may be formed on an inner peripheral surface of the vehicle-body-side end portion of the wheel hub in a spaced-apart relationship with each other along a circumferential direction.

A towing device for endoscopy including a connecting portion connected to a wire of an endoscope to be moved, wherein a body of the connecting portion is broken when a set amount of tension or more is applied to the connecting portion; a guide portion including an inner path through which the connecting portion moves; a clip portion positioned at an opposite direction of the wire with respect to the guide portion and hooked by the connecting portion to be closed and grip body tissues; and an extension portion configured to move together with the guide portion and having a magnetic force.

Towing device for endoscopy

A silicon crystallization method renders it is possible to form alignment key without additional photolithography, and to adjust a substrate to a correct position by sensing a deviation of the substrate when the substrate is loaded. The silicon crystallization method includes aligning the substrate by sensing a fixed substrate with a sensing device, and moving and/or rotating a stage, wherein the sensing device faces toward an edge of the substrate to directly sense the edge of the substrate; forming alignment keys on predetermined portions of a non-display area of the substrate by correspondingly placing a mask for formation of an alignment key above the substrate; and crystallizing an amorphous silicon by correspondingly providing a mask for crystallization above the substrate.

Silicon crystallization apparatus and silicon crystallization method thereof

An embodiment of a laser crystallization method includes providing a substrate on which an amorphous silicon thin film is deposited, positioning a laser mask over the substrate, the laser mask including a mask pattern that contains transmitting regions and a blocking region, irradiating a first laser beam onto a surface of the substrate through the pattern of the laser mask to first crystallize a predetermined region of the silicon thin film, moving the laser mask or a stage on which the substrate is loaded in an X-axis direction to perform second crystallization using the laser mask, repeatedly performing the crystallization to an end of the substrate in the X-axis direction, moving the laser mask or the stage in a Y-axis direction, and repeatedly performing the crystallization in the Y-axis direction to complete crystallization.

Laser mask and crystallization method using the same

A crystallization method and system are provided which improve a crystallization process by deciding a best-fit focal plane for a laser beam using a test mask and then applying the decided best-fit focal plane to the crystallization process. The crystallization method includes loading a test mask on a mask stage; deciding a best-fit focal plane by performing a crystallization test using the test mask, checking the test result and deciding conditions of a best-fit focal plane from the test result; moving the mask stage to a position corresponding to the best-fit focal plane; loading a mask for crystallization process onto the moved mask stage; and performing the crystallization process using the mask for crystallization process.

Method of deciding focal plane and method of crystallization using thereof

A novel silicon crystallization apparatus and a silicon crystallization method renders it is possible to form alignment key without additional photolithography, and to adjust a substrate to a correct position by sensing a deviation of the substrate when the substrate is loaded. The silicon crystallization apparatus includes a moving stage being moved in a horizontal direction, and a fixing plate provided in the moving stage, to fix a substrate. A rotating frame is provided in the moving stage, to rotate the fixing plate.

A sequential lateral solidification device and a method of crystallizing silicon using the same controls a size and arrangement overlapping areas of laser beam patterns adjacently irradiated onto a substrate to within specific regions of a pixel area and a driving area outside the pixel area. The device includes a laser generating device irradiating a laser beam, a focusing lens focusing the laser beam, a mask having a pattern of transparent regions permitting the laser beam to be transmitted a laser beam pattern, a reduction lens reducing the laser beam pattern transmitted by the mask, a substrate having a pixel area and a driving area exposed to the irradiated laser beam pattern, a moveable stage having, on which the substrate is mounted, and a position sensor sensing an position of the irradiated laser beam pattern and controlling a size and arrangement overlapping areas between adjacently irradiated laser beam patterns.

Sequential lateral solidification device and method of crystallizing silicon using the same

A silicon crystallizing device includes a laser beam source emitting a laser beam, a projector unit converging and changing a pattern of the laser beam from the laser beam source, a stage loading/unloading a substrate, a mirror deflecting the laser beam from the projector unit to an outside of the substrate, and a cooling device receiving the laser beam deflected by the mirror and sinking heat generated by the laser beam received, thereby warming up the projection lens before completion of loading the substrate, or cutting off laser beam incident on the substrate after crystallization of the substrate.

Silicon crystallizing device

An laser crystallization device and a method for crystallizing silicon by using the same is disclosed, to carry out the crystallization process at both the X-axis and Y-axis directions without rotation of a stage, wherein the laser crystallization device is includes a mask including first and second regions, the first region having an open part oriented in the X-axis direction, and the second region having an open part oriented in the Y-axis direction. A crystallization method includes positioning a substrate having an amorphous silicon layer on a stage; arranging a mask corresponding to the substrate to form first and second crystallizing blocks on irradiation of laser beam, the mask including a first region having a plurality of open parts oriented along the X-axis direction, and a second region having a plurality of open parts oriented along the Y-axis direction; crystallizing the substrate along the X-axis direction when the first region is open, and the stage is moved along the X-axis direction; and crystallizing the substrate along for the Y-axis direction of when the second region is open, and the stage is moved along the Y-axis direction.

Crystallizing silicon using a laser beam transmitted through a mask

A laser mask includes a mask pattern with edges having inverted shapes to alleviate the effects of diffraction of laser beams to reduce overlap regions such that crystallization characteristics are improved. The laser mask includes a mask pattern that includes transmitting regions and a blocking region. The edges of the mask have shapes inverted to the shapes of the edges of a silicon thin film crystallized by the pattern.

A sequential lateral solidification (SLS) device and a method of crystallizing silicon using the same is disclosed, wherein alignment keys are formed on a substrate with one mask having a plurality of different patterns, and a crystallization process is progressed in parallel to an imaginary line connecting the alignment keys with information for a distance between the mask and the alignment key. The SLS device includes a laser beam generator for irradiating laser beams; a mask having a plurality of areas; a mask stage for moving the mask loaded thereto, to transmit a laser beam through a selective area of the mask; and a substrate stage for moving a substrate loaded thereto, to change portions of the substrate irradiated with the laser beam passing through the mask.

A laser beam pattern mask includes at least one or more transmitting parts, each transmitting part having a central portion and a pair of edge portions provided to both sides of the central portion, each having a substantially triangular shape defined by a virtual boundary line between the central portion and the corresponding edge portion, an upper outside extending from an upper end of the boundary line at an acute angle, and a lower outside extending from a lower end of the boundary line at the acute angle to meet the upper outside at a rounded corner.

Laser beam pattern mask and crystallization method using the same

A laser crystallizing device including a mask divided into two regions, having open parts of the same shape at complementary positions; and a light-shielding pattern selectively leaving one region of the mask open and masking the other region.

Laser crystallizing device and method for crystallizing silicon

A laser beam pattern mask includes an opaque substrate and a plurality of transmission portions formed in the substrate to transmit light, wherein each of the transmission portions extend in a first direction while being uniformly spaced apart from one another by a predetermined distance in a second direction perpendicular to the first direction, each of the transmission portions including hexagonal cells arranged in the first direction and in contact with one another.

Growing community of inventors

Seoul, South Korea

Yun Ho Jung