Abstract: A display device and method for manufacturing thereof are provided. The display device includes a substrate having a display area and a non-display area, and including an edge, an upper surface having an edge area in which a processing trace remains adjacent to the edge, a bottom surface opposite to the upper surface, a side surface connected to the upper surface and not parallel thereto, and a first inclined surface connected to the side surface and to the bottom surface, a light-emitting element layer above the upper surface of the substrate in the display area, and including light-emitting elements, an encapsulating layer above the light-emitting element layer and corresponding to a portion of the display area and the non-display area, and a protective layer above an outer surface of the substrate, and located on at least one of the bottom surface, the side surface, or the first inclined surface.

Abstract: A display device includes: a substrate including a display area and a non-display area surrounding the display area; a light emitting element layer on the display area on the substrate and including a plurality of light emitting elements; and an encapsulating layer on the light emitting element layer and on a portion of the display area and the non-display area; and wherein the substrate comprises an upper surface on which the light emitting element layer is located, a bottom surface opposite to the upper surface, a side surface connected to the upper surface and not parallel to the upper surface, and a first inclined surface connected to the side surface and the bottom surface and not parallel to the side surface and the bottom surface, wherein an edge area of the upper surface of the substrate adjacent to an edge of the substrate, in which a processing trace remains.

Abstract: A display device includes: a substrate comprising an upper surface, a bottom surface facing the upper surface, and a through hole penetrating the upper surface and the bottom surface; and a light emitting element layer on the upper surface of the substrate, wherein the substrate comprises a side surface that meets the upper surface in the through hole, a first surface that meets the bottom surface, a second surface that meets the side surface, and a third surface between the first surface and the second surface, and wherein the first surface and the second surface are spaced apart from each other with the third surface therebetween, and are inclined surfaces.

Abstract: An electronic device includes a display device, which may be fabricated using a described method. The display device includes a glass substrate including a first surface, a second surface opposite the first surface, and a side surface between the first surface and the second surface, an outermost structure on the first surface of the glass substrate and located adjacent to an edge of one side of the glass substrate, and a display area including a plurality of light emitting areas on the first surface of the glass substrate and located farther from the edge of the one side of the glass substrate than the outermost structure is. A minimum distance from the side surface of the glass substrate to the outermost structure is equal to 130 ?m or less.

Abstract: Provided is a valve structure of a shock absorber which is capable of controlling respective damping forces according to a frequency in compression and rebound motions of a piston valve, thereby satisfying both the ride comfort and the control stability. The valve structure of the shock absorber, which has a cylinder filled with a working fluid and a piston rod having one end located inside the cylinder and the other end extending outward from the cylinder, includes: a main piston valve assembly installed at one end of the piston rod and configured to operate in a state that the inside of the cylinder is divided into an upper chamber and a lower chamber, and generate a damping force varying according to a moving speed; and a frequency unit configured to move together with the main piston valve assembly and generate a damping force varying according to a frequency.

Abstract: Provided is a valve structure of a shock absorber which is capable of controlling respective damping forces according to a frequency in compression and rebound motions of a piston valve, thereby satisfying both the ride comfort and the control stability. The valve structure of the shock absorber, which has a cylinder filled with a working fluid and a piston rod having one end located inside the cylinder and the other end extending outward from the cylinder, includes: a main piston valve assembly installed at one end of the piston rod and configured to operate in a state that the inside of the cylinder is divided into an upper chamber and a lower chamber, and generate a damping force varying according to a moving speed; and a frequency unit configured to move together with the main piston valve assembly and generate a damping force varying according to a frequency.

Abstract: Disclosed herein is a piston assembly of a shock absorber which ensures easy and prompt connection of components in the correct positions in assembling the piston assembly of a shock absorber by forming a seating unit between a piston body and a compression retainer and between the piston body and a tension retainer.

Abstract: Provided is a valve structure of a shock absorber which is capable of controlling respective damping forces according to a frequency in compression and rebound motions of a piston valve, thereby satisfying both the ride comfort and the control stability. The valve structure of the shock absorber, which has a cylinder filled with a working fluid and a piston rod having one end located inside the cylinder and the other end extending outward from the cylinder, includes: a main piston valve assembly installed at one end of the piston rod and configured to operate in a state that the inside of the cylinder is divided into an upper chamber and a lower chamber, and generate a damping force varying according to a moving speed; and a frequency unit configured to move together with the main piston valve assembly and generate a damping force varying according to a frequency.

Abstract: Provided is a valve structure of a shock absorber which is capable of controlling respective damping forces according to a frequency in compression and rebound motions of a piston valve, thereby satisfying both the ride comfort and the control stability. The valve structure of the shock absorber, which has a cylinder filled with a working fluid and a piston rod having one end located inside the cylinder and the other end extending outward from the cylinder, includes: a main piston valve assembly installed at one end of the piston rod and configured to operate in a state that the inside of the cylinder is divided into an upper chamber and a lower chamber, and generate a damping force varying according to a moving speed; and a frequency unit configured to move together with the main piston valve assembly and generate a damping force varying according to a frequency.

Abstract: A shock absorber is provided. The shock absorber includes: a piston rod; an inner passage having an inlet port at an outer periphery of the piston rod; and a stopper installed at the outer periphery of the piston rod. The stopper is disposed to surround the inlet port of the inner passage, and an outer passage extending from an upper portion of the stopper to the inlet port is formed between the stopper and the piston rod.

Abstract: A valve structure includes a piston valve assembly, and a frequency unit including a hollow housing, a free piston and an auxiliary valve assembly. The piston valve assembly, installed at one end of a piston rod, operates with the inside of a cylinder being divided into upper and lower chambers, and generates a damping force varying according to a moving speed. The frequency unit moves together with the piston valve assembly and generates a damping force varying according to a frequency. The housing is mounted at a lower end of the piston rod such that the housing is disposed under the piston valve assembly. An inner space of the housing is partitioned into upper and lower spaces by the free piston. The free piston is disposed to be vertically movable within the housing. The auxiliary valve assembly is mounted at a lower end of the housing.

Abstract: A frequency unit valve is provided. In the frequency valve, a free piston reciprocates within a housing where a sub-valve is mounted in a lower portion. Variable frequency units installed above and under the free piston provide a damping characteristic by selectively opening or closing a passage when a frequency of a piston rod is in a high-frequency region and a low-frequency region. Accordingly, the vehicle ride comfort is maximally improved.

Abstract: Provided is a piston assembly of a shock absorber, which is simple in structure and is easy to fabricate. The piston assembly of the shock absorber includes: a piston body in which a piston rod reciprocating within a cylinder penetrates a central portion thereof, and a plurality of compression passages and a plurality of rebound passages alternately penetrating the piston body are formed around the piston rod; a compression retainer placed over the piston body, in which a plurality of connection holes corresponding to the compression passages penetrate the compression retainer; and a rebound retainer placed under the piston body, in which a plurality of connection holes corresponding to the rebound passages penetrate the rebound retainer.

Abstract: A frequency unit valve is provided. In the frequency valve, a free piston reciprocates within a housing where a sub-valve is mounted in a lower portion. Variable frequency units installed above and under the free piston provide a damping characteristic by selectively opening or closing a passage when a frequency of a piston rod is in a high-frequency region and a low-frequency region. Accordingly, the vehicle ride comfort is maximally improved.

Abstract: Disclosed herein is a piston assembly of a shock absorber which ensures easy and prompt connection of components in the correct positions in assembling the piston assembly of a shock absorber by forming a seating unit between a piston body and a compression retainer and between the piston body and a tension retainer.

Abstract: Provided is a piston assembly of a shock absorber, which is simple in structure and is easy to fabricate. The piston assembly of the shock absorber includes: a piston body in which a piston rod reciprocating within a cylinder penetrates a central portion thereof, and a plurality of compression passages and a plurality of rebound passages alternately penetrating the piston body are formed around the piston rod; a compression retainer placed over the piston body, in which a plurality of connection holes corresponding to the compression passages penetrate the compression retainer; and a rebound retainer placed under the piston body, in which a plurality of connection holes corresponding to the rebound passages penetrate the rebound retainer.

Abstract: A valve structure includes a piston valve assembly, and a frequency unit including a hollow housing, a free piston and an auxiliary valve assembly. The piston valve assembly, installed at one end of a piston rod, operates with the inside of a cylinder being divided into upper and lower chambers, and generates a damping force varying according to a moving speed. The frequency unit moves together with the piston valve assembly and generates a damping force varying according to a frequency. The housing is mounted at a lower end of the piston rod such that the housing is disposed under the piston valve assembly. An inner space of the housing is partitioned into upper and lower spaces by the free piston. The free piston is disposed to be vertically movable within the housing. The auxiliary valve assembly is mounted at a lower end of the housing.

Abstract: Disclosed is a double sliding piston valve in which a sliding valve is added to a piston valve to realize gentle variation of damping force. The double sliding piston valve for use in a shock absorber, includes a housing placed in a lower region of a piston to store oil therein, a sliding valve received in the housing, the sliding valve having first and second flow-paths formed therein, pressure springs respectively coming into close contact with upper and lower surfaces of the sliding valve to enable vertical sliding of the sliding valve, and a washer provided below the sliding valve to support the sliding valve, the washer having a center oil hole.