IMAGE DISPLAY DEVICE AND CONTROL METHOD THEREOF

PROBLEM TO BE SOLVED: To suppress image quality deterioration when a display unevenness correction is performed.SOLUTION: An image forming apparatus comprises: a measurement value storage part for storing a luminance measurement value of each pixel according to each gradation when image data of ever...

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Bibliographische Detailangaben
1. Verfasser:	HIYOSHI TAKETO
Format:	Patent
Sprache:	eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To suppress image quality deterioration when a display unevenness correction is performed.SOLUTION: An image forming apparatus comprises: a measurement value storage part for storing a luminance measurement value of each pixel according to each gradation when image data of every gradation value is input to each pixel of a display part; a display area setting part for setting a plurality of different display areas within a screen of the display part; a target value setting part for setting a target luminance according to each gradation value and each display area on the basis of the luminance measurement values of the pixels within each display area among the luminance measurement value of each gradation value stored in the measurement value storage part; a correction value calculation part for correcting a gradation value of each pixel of input image data so that the luminance of each pixel of the display part is the luminance target corresponding to the display area belonging to each pixel and the gradation value of each pixel of the input image data; and a display unevenness correction part for outputting image data having the gradation value of each pixel of the input image data corrected by the correction value calculation part, to the display part.