METHOD OF DRIVING LIGHT-SOURCE AND LIGHT-SOURCE APPARATUS FOR PERFORMING THE SAME AND DISPLAY APPARATUS HAVING THE LIGHT-SOURCE APPARATUS

• Main Authors: PARK, YUN JAE, HAN, SANG SU, CHOE, WEON JUN, SHIN, BYUNG HYUK
• Format: Patent
• Language: English; Korean
• Published: 13.09.2010
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; EDUCATION; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PURPOSE: A light source driving method, a light source device thereof, and a display device thereof are provided to prevent a flicker phenomenon by compensating a luminance central value based on an average gray scale value and a maximum gray scale value. CONSTITUTION: A luminance central value is generated based on an average gray scale value and a maximum gray scale value. The average gray scale value and the maximum gray scale value are extracted from a video signal corresponding to each light emitting block(S110). Each light emitting block comprises a light source. A predetermined pattern is detected from each light emitting block(S130). A compensation control signal is generated according to the pattern detection result. The luminance central value is compensated in response to the compensation control signal. Each light emitting block is driven according to the luminance level of each light emitting block and the compensated luminance central value(S170).