Lg Electronics Inc.

Hee Jong Moon

Ho Joong Kang

Kyeong-Won Lee

Ho-Young Choi

A concept of improving a resolution by using human's visual characteristics is provided. A display device includes an image forming unit forming an image by using an emitted light and an inputted image signal, a projection unit projecting the image formed by the image forming unit onto a screen, and a movable displacement plate displacing the image displayed on the screen. As a result, a viewer can view the image at an improved resolution.

Display device and display method

A personal data communication apparatus that provides a camera, a magnified image in a display and a video telecommunication system within a compact handset housing is disclosed. The personal data communication apparatus can include a memory that stores image information from the camera converted into an electrical signal as data. A transmission controlling part accesses the data stored in the memory and transmits to a radio public telecommunication network in response to a user signal requesting a video communication and displays the image information received as an image signal from the public telecommunication network. The personal data communications apparatus can further include a receiver receiving a voice, a viewfinder type display adapted to magnify the image information, a speaker for transmitting a voice and a system driving part for entering system operation control signals by the user. The camera is a compact design using a diffractive optic system to be mounted within a housing. The housing preferably encompasses the personal data communications apparatus with the speaker rotatably attached to an upper portion of the housing to protect the camera in a closed position and the receiver rotatably attached to a lower portion of the housing to protect the display in a closed position.

Personal data communication apparatus

A projection lens for projecting, on a projection screen, an enlargement of an image appearing on a cathode ray tube (CRT) corrects for optical aberrations by minimizing the number of lens elements, and can be manufactured at low cost. The projection lens includes, successively from an image side to an object side, a first lens group comprising a single lens element of generally positive meniscus shape, a second lens group comprising a single positive lens element, a field stop, and a third lens group having a concave surface facing the image side.

Growing community of inventors

Seoul, South Korea

Hee Jong Moon