METHOD OF ADJUSTING FLICKER, FLICKER ADJUSTING CIRCUIT FOR PERFORMING METHOD, AND DISPLAY APPARATUS HAVING CIRCUIT

• Main Authors: GYO KIKAN, PARK JONG-WOUNG
• Format: Patent
• Language: English
• Published: 13.11.2008
• 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

PROBLEM TO BE SOLVED: To provide a method for adjusting flicker, a flicker adjusting circuit for performing the method, and a display apparatus which includes the circuit. SOLUTION: With respect to the flicker adjusting method for improving display quality, the flicker adjusting circuit for performing the method, and the display apparatus which includes the circuit. the method includes displaying an inspection image on a plurality of sensing pixels formed in a display panel, sensing an amount of light of the displayed inspection image and outputting sensing signals, adding the sensing signals by every frame, detecting a maximum value and a minimum value of sum values for the preliminarily set number of frames, producing a flicker index using the maximum value and the minimum value, comparing the flicker index with a predetermined threshold value such that a common voltage of the display panel is set when the flicker index is smaller than the threshold value. Therefore, the display quality of the display apparatus may be improved by flicker adjustment suitable for differences in processes, drives, temperatures, etc. COPYRIGHT: (C)2009,JPO&INPIT