Light source performing scanning operation twice, image apparatus using the light source, and method of driving the light source

• Main Authors: LEE KYE-HOON, CHO KUN-HO
• Format: Patent
• Language: English
• Published: 30.08.2007
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DISPLAY; EDUCATION; PHYSICS; SEALS

A light source and an image apparatus which can reduce a rainbow effect and a color separation phenomenon in a pixel are provided. A different waveform is provided according to a color of the light source and methods of driving the light source and the image apparatus, respectively. The light source outputs beams of one or two colors from among three primary colors in a corresponding pixel section of a first scan section, in two scan sections for generating an entire image composed of a plurality of pixel images, to generate each pixel image and outputs a beam or beams of the remaining color or colors among the three primary colors in a corresponding pixel section of a second scan section. The image apparatus includes a light source, an optical modulation device receiving beams from the light source and modulating the received beam into image components, a reflector receiving the image components from the optical modulation device and scanning the received image components onto a screen, and a control unit controlling the light source to output beams of one or two colors among three primary colors in a corresponding pixel section of a first scan section and output a beam or beams of the remaining color or colors among the three primary colors in a corresponding pixel section of a second scan section, wherein the first scan section and the second scan section are for generating an entire image composed of a plurality of pixel images.