"dispositivo de exibição de imagem e método de exibição de imagem"
An image display device which performs area-active drive suppresses occurrence of flickering that is caused when displaying dynamic images due to the emission luminance of each area being determined on the basis of a maximum or mean value of pixel luminances within that area. An emission luminance c...
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| creator | Katsuteru Hashimoto Kohji Fujiwara Katsuya Otoi |
| description | An image display device which performs area-active drive suppresses occurrence of flickering that is caused when displaying dynamic images due to the emission luminance of each area being determined on the basis of a maximum or mean value of pixel luminances within that area. An emission luminance calculation section (151) divides an input image (31) into a plurality of areas, and obtains luminances upon emission of LEDs (first emission luminances) (32) in the areas. A maximum luminance position eccentricity coefficient calculation section (152) obtains maximum luminance position eccentricity coefficients (33) indicating maximum luminance positions in the areas. An emission luminance correction section (153) corrects the first emission luminances (32) on the basis of the maximum luminance position eccentricity coefficients (33) and contribution ratios (34) stored in an LED filter (156). At this time, luminances of areas positioned in the same direction as the maximum luminance positions are set to be relatively high, and luminances of areas positioned in the opposite direction to the maximum luminance positions are set to be relatively low. |
| format | Patent |
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An emission luminance calculation section (151) divides an input image (31) into a plurality of areas, and obtains luminances upon emission of LEDs (first emission luminances) (32) in the areas. A maximum luminance position eccentricity coefficient calculation section (152) obtains maximum luminance position eccentricity coefficients (33) indicating maximum luminance positions in the areas. An emission luminance correction section (153) corrects the first emission luminances (32) on the basis of the maximum luminance position eccentricity coefficients (33) and contribution ratios (34) stored in an LED filter (156). 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An emission luminance calculation section (151) divides an input image (31) into a plurality of areas, and obtains luminances upon emission of LEDs (first emission luminances) (32) in the areas. A maximum luminance position eccentricity coefficient calculation section (152) obtains maximum luminance position eccentricity coefficients (33) indicating maximum luminance positions in the areas. An emission luminance correction section (153) corrects the first emission luminances (32) on the basis of the maximum luminance position eccentricity coefficients (33) and contribution ratios (34) stored in an LED filter (156). At this time, luminances of areas positioned in the same direction as the maximum luminance positions are set to be relatively high, and luminances of areas positioned in the opposite direction to the maximum luminance positions are set to be relatively low.</description><subject>ADVERTISING</subject><subject>ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION</subject><subject>CRYPTOGRAPHY</subject><subject>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</subject><subject>DISPLAY</subject><subject>EDUCATION</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>FREQUENCY-CHANGING</subject><subject>NON-LINEAR OPTICS</subject><subject>OPTICAL ANALOGUE/DIGITAL CONVERTERS</subject><subject>OPTICAL LOGIC ELEMENTS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><subject>PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><subject>SEALS</subject><subject>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHBXSsksLsgvzizJLMtXSElVSK3ITMo8vPzwYjAvMzcxPTVXIVUh9_DKkvwUnCqUeBhY0xJzilN5oTQ3g6qba4izh25qQX58anFBYnJqXmpJvFOQoaGRARAZGJpbmDgaGROrDgAY4TeP</recordid><startdate>20190924</startdate><enddate>20190924</enddate><creator>Katsuteru Hashimoto</creator><creator>Kohji Fujiwara</creator><creator>Katsuya Otoi</creator><scope>EVB</scope></search><sort><creationdate>20190924</creationdate><title>"dispositivo de exibição de imagem e método de exibição de imagem"</title><author>Katsuteru Hashimoto ; Kohji Fujiwara ; Katsuya Otoi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_BR112012001784A23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>por</language><creationdate>2019</creationdate><topic>ADVERTISING</topic><topic>ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION</topic><topic>CRYPTOGRAPHY</topic><topic>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</topic><topic>DISPLAY</topic><topic>EDUCATION</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>FREQUENCY-CHANGING</topic><topic>NON-LINEAR OPTICS</topic><topic>OPTICAL ANALOGUE/DIGITAL CONVERTERS</topic><topic>OPTICAL LOGIC ELEMENTS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><topic>PICTORIAL COMMUNICATION, e.g. TELEVISION</topic><topic>SEALS</topic><topic>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</topic><toplevel>online_resources</toplevel><creatorcontrib>Katsuteru Hashimoto</creatorcontrib><creatorcontrib>Kohji Fujiwara</creatorcontrib><creatorcontrib>Katsuya Otoi</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Katsuteru Hashimoto</au><au>Kohji Fujiwara</au><au>Katsuya Otoi</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>"dispositivo de exibição de imagem e método de exibição de imagem"</title><date>2019-09-24</date><risdate>2019</risdate><abstract>An image display device which performs area-active drive suppresses occurrence of flickering that is caused when displaying dynamic images due to the emission luminance of each area being determined on the basis of a maximum or mean value of pixel luminances within that area. An emission luminance calculation section (151) divides an input image (31) into a plurality of areas, and obtains luminances upon emission of LEDs (first emission luminances) (32) in the areas. A maximum luminance position eccentricity coefficient calculation section (152) obtains maximum luminance position eccentricity coefficients (33) indicating maximum luminance positions in the areas. An emission luminance correction section (153) corrects the first emission luminances (32) on the basis of the maximum luminance position eccentricity coefficients (33) and contribution ratios (34) stored in an LED filter (156). At this time, luminances of areas positioned in the same direction as the maximum luminance positions are set to be relatively high, and luminances of areas positioned in the opposite direction to the maximum luminance positions are set to be relatively low.</abstract><oa>free_for_read</oa></addata></record> |
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| 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 ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SEALS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF |
| title | "dispositivo de exibição de imagem e método de exibição de imagem" |
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