VIDEO DISPLAY DEVICE
Provided is a video display device capable of improving contrast achieved by local dimming. The video display device includes: a display panel that displays an image based on an input image signal; a light source substrate that includes a plurality of light sources on a main surface which is a front...
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| creator | KUMAMOTO, Yasuhiro SHINYA, Takeichi OFUJI, Masaaki TAKEUCHI, Taizou KUGIMARU, Tadahiro HIGA, Koujirou |
| description | Provided is a video display device capable of improving contrast achieved by local dimming. The video display device includes: a display panel that displays an image based on an input image signal; a light source substrate that includes a plurality of light sources on a main surface which is a front side of the light source substrate, and emits, toward a rear side of the display panel, light emitted from the plurality of light sources; a reflection sheet that is provided on the main surface of the light source substrate, and in which hollow partitioning walls each of which separates adjacent two light sources of the plurality of light sources are formed; an optical member that is provided between the display panel and the light source substrate, and uniformizes luminance distribution of the light emitted from the light source substrate; and support members each of which is provided between the light source substrate and the optical member, and supports the optical member. The reflection sheet includes intersection portions where the partitioning walls formed in a first direction and the partitioning walls formed in a second direction crossing the first direction cross each other, and further includes linear portions formed in parallel with the first direction or the second direction. Each of the support members is disposed in a recess portion formed in a corresponding linear portion. |
| format | Patent |
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The video display device includes: a display panel that displays an image based on an input image signal; a light source substrate that includes a plurality of light sources on a main surface which is a front side of the light source substrate, and emits, toward a rear side of the display panel, light emitted from the plurality of light sources; a reflection sheet that is provided on the main surface of the light source substrate, and in which hollow partitioning walls each of which separates adjacent two light sources of the plurality of light sources are formed; an optical member that is provided between the display panel and the light source substrate, and uniformizes luminance distribution of the light emitted from the light source substrate; and support members each of which is provided between the light source substrate and the optical member, and supports the optical member. The reflection sheet includes intersection portions where the partitioning walls formed in a first direction and the partitioning walls formed in a second direction crossing the first direction cross each other, and further includes linear portions formed in parallel with the first direction or the second direction. Each of the support members is disposed in a recess portion formed in a corresponding linear portion.</description><language>eng ; fre ; ger</language><subject>ADVERTISING ; BLASTING ; 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 ; DISPLAYING ; EDUCATION ; FREQUENCY-CHANGING ; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF ; HEATING ; LABELS OR NAME-PLATES ; LIGHTING ; MECHANICAL ENGINEERING ; NON-LINEAR OPTICS ; NON-PORTABLE LIGHTING DEVICES ; OPTICAL ANALOGUE/DIGITAL CONVERTERS ; OPTICAL LOGIC ELEMENTS ; OPTICS ; PHYSICS ; SEALS ; SIGNS ; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR ; SYSTEMS THEREOF ; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF ; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS ; WEAPONS</subject><creationdate>2020</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200930&DB=EPODOC&CC=EP&NR=3346322B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200930&DB=EPODOC&CC=EP&NR=3346322B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KUMAMOTO, Yasuhiro</creatorcontrib><creatorcontrib>SHINYA, Takeichi</creatorcontrib><creatorcontrib>OFUJI, Masaaki</creatorcontrib><creatorcontrib>TAKEUCHI, Taizou</creatorcontrib><creatorcontrib>KUGIMARU, Tadahiro</creatorcontrib><creatorcontrib>HIGA, Koujirou</creatorcontrib><title>VIDEO DISPLAY DEVICE</title><description>Provided is a video display device capable of improving contrast achieved by local dimming. The video display device includes: a display panel that displays an image based on an input image signal; a light source substrate that includes a plurality of light sources on a main surface which is a front side of the light source substrate, and emits, toward a rear side of the display panel, light emitted from the plurality of light sources; a reflection sheet that is provided on the main surface of the light source substrate, and in which hollow partitioning walls each of which separates adjacent two light sources of the plurality of light sources are formed; an optical member that is provided between the display panel and the light source substrate, and uniformizes luminance distribution of the light emitted from the light source substrate; and support members each of which is provided between the light source substrate and the optical member, and supports the optical member. The reflection sheet includes intersection portions where the partitioning walls formed in a first direction and the partitioning walls formed in a second direction crossing the first direction cross each other, and further includes linear portions formed in parallel with the first direction or the second direction. Each of the support members is disposed in a recess portion formed in a corresponding linear portion.</description><subject>ADVERTISING</subject><subject>BLASTING</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>DISPLAYING</subject><subject>EDUCATION</subject><subject>FREQUENCY-CHANGING</subject><subject>FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF</subject><subject>HEATING</subject><subject>LABELS OR NAME-PLATES</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>NON-LINEAR OPTICS</subject><subject>NON-PORTABLE LIGHTING DEVICES</subject><subject>OPTICAL ANALOGUE/DIGITAL CONVERTERS</subject><subject>OPTICAL LOGIC ELEMENTS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><subject>SEALS</subject><subject>SIGNS</subject><subject>STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR</subject><subject>SYSTEMS THEREOF</subject><subject>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</subject><subject>VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAJ83Rx9Vdw8QwO8HGMVHBxDfN0duVhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfGuAcbGJmbGRkZOhsZEKAEAM40eEA</recordid><startdate>20200930</startdate><enddate>20200930</enddate><creator>KUMAMOTO, Yasuhiro</creator><creator>SHINYA, Takeichi</creator><creator>OFUJI, Masaaki</creator><creator>TAKEUCHI, Taizou</creator><creator>KUGIMARU, Tadahiro</creator><creator>HIGA, Koujirou</creator><scope>EVB</scope></search><sort><creationdate>20200930</creationdate><title>VIDEO DISPLAY DEVICE</title><author>KUMAMOTO, Yasuhiro ; SHINYA, Takeichi ; OFUJI, Masaaki ; TAKEUCHI, Taizou ; KUGIMARU, Tadahiro ; HIGA, Koujirou</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP3346322B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2020</creationdate><topic>ADVERTISING</topic><topic>BLASTING</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>DISPLAYING</topic><topic>EDUCATION</topic><topic>FREQUENCY-CHANGING</topic><topic>FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF</topic><topic>HEATING</topic><topic>LABELS OR NAME-PLATES</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>NON-LINEAR OPTICS</topic><topic>NON-PORTABLE LIGHTING DEVICES</topic><topic>OPTICAL ANALOGUE/DIGITAL CONVERTERS</topic><topic>OPTICAL LOGIC ELEMENTS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><topic>SEALS</topic><topic>SIGNS</topic><topic>STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR</topic><topic>SYSTEMS THEREOF</topic><topic>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</topic><topic>VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>KUMAMOTO, Yasuhiro</creatorcontrib><creatorcontrib>SHINYA, Takeichi</creatorcontrib><creatorcontrib>OFUJI, Masaaki</creatorcontrib><creatorcontrib>TAKEUCHI, Taizou</creatorcontrib><creatorcontrib>KUGIMARU, Tadahiro</creatorcontrib><creatorcontrib>HIGA, Koujirou</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KUMAMOTO, Yasuhiro</au><au>SHINYA, Takeichi</au><au>OFUJI, Masaaki</au><au>TAKEUCHI, Taizou</au><au>KUGIMARU, Tadahiro</au><au>HIGA, Koujirou</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>VIDEO DISPLAY DEVICE</title><date>2020-09-30</date><risdate>2020</risdate><abstract>Provided is a video display device capable of improving contrast achieved by local dimming. The video display device includes: a display panel that displays an image based on an input image signal; a light source substrate that includes a plurality of light sources on a main surface which is a front side of the light source substrate, and emits, toward a rear side of the display panel, light emitted from the plurality of light sources; a reflection sheet that is provided on the main surface of the light source substrate, and in which hollow partitioning walls each of which separates adjacent two light sources of the plurality of light sources are formed; an optical member that is provided between the display panel and the light source substrate, and uniformizes luminance distribution of the light emitted from the light source substrate; and support members each of which is provided between the light source substrate and the optical member, and supports the optical member. The reflection sheet includes intersection portions where the partitioning walls formed in a first direction and the partitioning walls formed in a second direction crossing the first direction cross each other, and further includes linear portions formed in parallel with the first direction or the second direction. Each of the support members is disposed in a recess portion formed in a corresponding linear portion.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | ADVERTISING BLASTING 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 DISPLAYING EDUCATION FREQUENCY-CHANGING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LABELS OR NAME-PLATES LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS NON-PORTABLE LIGHTING DEVICES OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS SIGNS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS |
| title | VIDEO DISPLAY DEVICE |
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