Lg Electronics Inc.

Ionosep X Holdings L.l.c.

Other

Ionosep X L.l.c.

Sam Nyol Hong

In Ho Choi

Young Joong Kim

Jin A Kim

Kyung Su Lee

Hee Sool Koo

In Sang Choi

Min Suk Suh

Gi Tak Yun

Sang Hoon Hahn

Kyung Taek Lee

Ho Chul Ryu

Jung Eung Park

There is provided an optical pickup actuator for actuating a lens holder having an object lens according to an interaction between coils and magnets. The optical pickup actuator includes a lens-seating portion formed on the lens holder to support the object lens and a lens guide portion protruding from the lens-seating portion to securely support the object lens. The lens guide portion has an adhesive confining groove in which adhesive can be injected to securely fix the object lens.

Optical pickup actuator

An optical writing and reading device includes: a base; a main shaft holder fixed to the base; a main shaft supported by the main shaft holder; a pickup base supported by and moving along the main shaft; an optical pick-up actuator formed at the pickup base; an optical system for emitting and receiving a light to and from the optical pick-up actuator to write or read data on or from an optical disk; and a turntable and a spindle motor for rotating the optical disk.

Optical pickup actuator in writing and reading device

Disclosed is a display device adapting a resolution improvement device capable of effectively improving a resolution in a projecting display device and a method thereof. A display device according to the present invention comprises: a light source; an image forming means for forming an image using a light emitted from the light source and an input image signal; a projection means for projecting an image formed in the image forming means on a screen; a displacement means for displacing an image displayed on the screen to be displaced; a driving means for driving the displacement to be moved; and an input signal applying means for applying an input signal to the driving means for the displacement means to be rotated in a predetermined direction. According to the present invention, different images are displayed on a screen periodically. It seems that the greater number of pixels is used than the real number in a sense of sight. Thus, the present invention has an effect of improving a resolution with the same number of pixels.

Display device and method thereof

A system for improving the resolution of a display device by using human visual characteristics wherein an image can be displayed at a more improved resolution than an actual physical resolution, thereby achieving the same effect as that where the resolution is physically improved. An image signal corresponding to one frame is separated into a first image signal and a second image signal, and a first image and a second image are formed based on the first image signal and the second image signal. The first image and the second image are respectively displayed at a first location and a second location. As a result, a viewer can view the image with an improved resolution.

Display device for improving an image resolution of projection-type display device

An optical pick-up actuator is provided. The optical pick-up actuator includes a lens holder, a tracking coil, a focusing coil, and a magnet. The lens holder holds an objective lens. The tracking coil is wound with wire, is disposed at a central portion on both sides of the lens holder, and includes a horizontal width at a top thereof that is less than a horizontal width at a bottom thereof. The focusing coil is wound with wire, is disposed at a left and a right on both sides of the lens holder, and includes a horizontal width at a top thereof that is greater than a horizontal width at a bottom thereof. The magnet faces the tracking coil and the focusing coil.

Optical pick-up actuator

An actuator of an optical pick-up device includes two fixing frames, a lens holder disposed between the fixing frames and provided with a focusing lens, coils, and a reflection mirror having a central portion thinner than other portions where the coils are located, springs supporting the lens holder, the springs connecting two points of each fixing frame to the lens holder, each spring having one or more bends, a permanent magnet disposed facing the coils to generate magnetic field, and a yoke forming a path of the magnetic field generated by the permanent magnet.

Actuator of optical pick-up device

Provided is an optical pickup actuator for writing/reading data in/from an optical storage medium. The optical pickup actuator includes a heat sink member or a heat conductive material for minimizing a bad influence of heat generated from a coil.

An actuator of an optical pick-up device includes two fixing frames, a lens holder disposed between the fixing frames and provided with a focus lens and coils, springs supporting the lens holder, the springs connecting two points of each fixing frame to the lens holder, each spring having one or more bends, a permanent magnet disposed facing the coils to generate magnetic field, and a yoke forming a path of the magnetic field generated by the permanent magnet.

The present invention discloses an optical pickup actuator including a lens holder having an object lens, and a driving means for changing a position of the lens holder by using an electromagnetic force. The driving means includes multipolar magnets and tracking coils for changing the position of the lens holder to the tracking direction, each of the tracking coils has a top coil, a bottom coil and side coils, and the whole or part of the side coils has an angle smaller than 90&#xb0; to a horizontal line.

Optical pickup actuator that removes phase dispersion by a rolling mode

A concept of improving a resolution by using human's visual characteristics is provided. Bu the present invention, an image can be displayed at a more improved resolution than an actual physical resolution, thereby obtaining the same effect that the resolution is physically improved. An image signal corresponding to one frame is split into a first image signal and a second image signal, and a first image and a second image are formed based on the first image signal and the second image signal. Then, the first image and the second image are respectively displayed at a first location and a second location. As a result, a viewer can view the image at an improved resolution.

Display device having resolution improving apparatus for project-type display device

A concept of improving a resolution by using human's visual characteristics is provided. An image can be displayed at a more improved resolution than an actual physical resolution, thereby obtaining the same effect that the resolution is physically improved. An image signal corresponding to one frame is split into a first image signal and a second image signal, and a first image and a second image are formed based on the first image signal and the second image signal. Then, the first image and the second image are respectively displayed at a first location and a second location. As a result, a viewer can view the image at an improved resolution.

Display device and display method in which resolution improving apparatus is provided for project-type display device

Disclosed is an optical pick-up actuator including a tilt-compensating magnetic circuit adapted to conduct a tilt compensation depending on current flowing a focusing coil attached to a lens holder maintained in a suspended state. The tilt-compensating magnetic circuit includes magnets or electromagnets for generating a tilt-compensating magnetic field. Alternatively, the tilt-compensating magnetic circuit is configured to allow focusing and tracking magnets and a tracking coil to be movable toward the outer periphery of a disk, to which the optical pick-up actuator is applied. In either configuration, the tilt-compensating magnetic circuit generates a tilt-compensating magnetic field depending on the current flowing through the focusing coil. In accordance with the optical pick-up actuator of the present invention can conduct a tilt compensation depending on a control current flowing the focusing coil at the point of time when a focusing control is required. The optical pick-up actuator also automatically traces a tilt component resulting from a run-out phenomenon occurring due to a deflection of the disk. Thus, the optical pick-up actuator has a stable control performance.

Growing community of inventors

Suwon-si, South Korea

Sam Nyol Hong