Temporal vision-guided energy minimization for portable displays
This paper presents a novel backlight driving technique for liquid crystal displays. By scaling the intensity, frequency, and duty cycle of the backlight, this technique not only increases the perceived brightness but also prolongs the service time of rechargeable batteries. The increased brightness...
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| creator | Cheng, Wei-Chung Hsu, Chih-Fu Chao, Chain-Fu |
| description | This paper presents a novel backlight driving technique for liquid crystal displays. By scaling the intensity, frequency, and duty cycle of the backlight, this technique not only increases the perceived brightness but also prolongs the service time of rechargeable batteries. The increased brightness comes from a perceptual effect of temporal vision - a brief flash appears brighter than a steady light of the same intensity, called Brücke brightness enhancement effect. The prolonged service time comes from the relaxation phenomenon - a lithium-ion battery lasts longer by pulsed discharge. Combining these two effects, a great amount of service time can be obtained at the cost of flickering. We performed visual experiments to parameterize the Brücke effect and derived an optimization algorithm accordingly. To demonstrate the potential energy savings of this technique, we profiled the power consumption of an Apple iPod and fabricated an LED driving module. Based on experimental data, 75% of energy consumption can be saved and the service time can be extended to 300%. |
| doi_str_mv | 10.1145/1165573.1165595 |
| format | Conference Proceeding |
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By scaling the intensity, frequency, and duty cycle of the backlight, this technique not only increases the perceived brightness but also prolongs the service time of rechargeable batteries. The increased brightness comes from a perceptual effect of temporal vision - a brief flash appears brighter than a steady light of the same intensity, called Brücke brightness enhancement effect. The prolonged service time comes from the relaxation phenomenon - a lithium-ion battery lasts longer by pulsed discharge. Combining these two effects, a great amount of service time can be obtained at the cost of flickering. We performed visual experiments to parameterize the Brücke effect and derived an optimization algorithm accordingly. To demonstrate the potential energy savings of this technique, we profiled the power consumption of an Apple iPod and fabricated an LED driving module. Based on experimental data, 75% of energy consumption can be saved and the service time can be extended to 300%.</description><identifier>ISBN: 9781595934628</identifier><identifier>ISBN: 1595934626</identifier><identifier>DOI: 10.1145/1165573.1165595</identifier><language>eng</language><publisher>New York, NY, USA: ACM</publisher><subject>Algorithms ; Apertures ; backlight management ; Brightness ; Computing methodologies -- Artificial intelligence -- Computer vision ; Computing methodologies -- Computer graphics -- Image manipulation ; Design ; Energy consumption ; Filters ; Human Factors ; Liquid crystal displays ; Liquid crystals ; Measurement ; Optical polarization ; Photonics ; Plasma displays ; Power minimization ; temporal vision ; TFT-LCD ; Thin film transistors</subject><ispartof>ISLPED '06 : proceedings of the 2006 International Symposium on Low Power Electronics and Design, Tegernsee, Germany, October 4-6, 2006, 2006, p.89-94</ispartof><rights>2006 ACM</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/4271813$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>309,310,776,780,785,786,2052,27902,54895</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/4271813$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Cheng, Wei-Chung</creatorcontrib><creatorcontrib>Hsu, Chih-Fu</creatorcontrib><creatorcontrib>Chao, Chain-Fu</creatorcontrib><title>Temporal vision-guided energy minimization for portable displays</title><title>ISLPED '06 : proceedings of the 2006 International Symposium on Low Power Electronics and Design, Tegernsee, Germany, October 4-6, 2006</title><addtitle>LPE</addtitle><description>This paper presents a novel backlight driving technique for liquid crystal displays. By scaling the intensity, frequency, and duty cycle of the backlight, this technique not only increases the perceived brightness but also prolongs the service time of rechargeable batteries. The increased brightness comes from a perceptual effect of temporal vision - a brief flash appears brighter than a steady light of the same intensity, called Brücke brightness enhancement effect. The prolonged service time comes from the relaxation phenomenon - a lithium-ion battery lasts longer by pulsed discharge. Combining these two effects, a great amount of service time can be obtained at the cost of flickering. We performed visual experiments to parameterize the Brücke effect and derived an optimization algorithm accordingly. To demonstrate the potential energy savings of this technique, we profiled the power consumption of an Apple iPod and fabricated an LED driving module. Based on experimental data, 75% of energy consumption can be saved and the service time can be extended to 300%.</description><subject>Algorithms</subject><subject>Apertures</subject><subject>backlight management</subject><subject>Brightness</subject><subject>Computing methodologies -- Artificial intelligence -- Computer vision</subject><subject>Computing methodologies -- Computer graphics -- Image manipulation</subject><subject>Design</subject><subject>Energy consumption</subject><subject>Filters</subject><subject>Human Factors</subject><subject>Liquid crystal displays</subject><subject>Liquid crystals</subject><subject>Measurement</subject><subject>Optical polarization</subject><subject>Photonics</subject><subject>Plasma displays</subject><subject>Power minimization</subject><subject>temporal vision</subject><subject>TFT-LCD</subject><subject>Thin film transistors</subject><isbn>9781595934628</isbn><isbn>1595934626</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2006</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNqNkDtPAzEQhC0hJFBITUFzFaJJ8Hptn92BIl5SJJpQW3s-X2S4F-cLUvj1HCQ_gG1mpW9mimHsEvgSQKpbAK1Ujss_teqEzW1uYPosSi3MGZun9M6nQ6u0wHN2twlN3w1UZ18xxa5dbHexDGUW2jBs91kT29jEbxonlFXdkE3ekYo6ZGVMfU37dMFOK6pTmB91xt4eHzar58X69elldb9eEFgcFyBNQUp6KoVW6HXJtaxAG-UFEnljeTDcAwoAYSUvfS5MDsqXaEmQEThj14fefug-dyGNronJh7qmNnS75BA0Ipf5ZLw6GGMIwfVDbGjYOylyMIATXR4o-cYVXfeRHHD3u507bueO27liiKGaAjf_DOAPCfttqA</recordid><startdate>20061004</startdate><enddate>20061004</enddate><creator>Cheng, Wei-Chung</creator><creator>Hsu, Chih-Fu</creator><creator>Chao, Chain-Fu</creator><general>ACM</general><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope><scope>7SC</scope><scope>8FD</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>20061004</creationdate><title>Temporal vision-guided energy minimization for portable displays</title><author>Cheng, Wei-Chung ; Hsu, Chih-Fu ; Chao, Chain-Fu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a193t-148ba54cad2653c6d064f1685c23aac890e80c132112940dc728715cd39a2a823</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Algorithms</topic><topic>Apertures</topic><topic>backlight management</topic><topic>Brightness</topic><topic>Computing methodologies -- Artificial intelligence -- Computer vision</topic><topic>Computing methodologies -- Computer graphics -- Image manipulation</topic><topic>Design</topic><topic>Energy consumption</topic><topic>Filters</topic><topic>Human Factors</topic><topic>Liquid crystal displays</topic><topic>Liquid crystals</topic><topic>Measurement</topic><topic>Optical polarization</topic><topic>Photonics</topic><topic>Plasma displays</topic><topic>Power minimization</topic><topic>temporal vision</topic><topic>TFT-LCD</topic><topic>Thin film transistors</topic><toplevel>online_resources</toplevel><creatorcontrib>Cheng, Wei-Chung</creatorcontrib><creatorcontrib>Hsu, Chih-Fu</creatorcontrib><creatorcontrib>Chao, Chain-Fu</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection><collection>Computer and Information Systems Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Cheng, Wei-Chung</au><au>Hsu, Chih-Fu</au><au>Chao, Chain-Fu</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Temporal vision-guided energy minimization for portable displays</atitle><btitle>ISLPED '06 : proceedings of the 2006 International Symposium on Low Power Electronics and Design, Tegernsee, Germany, October 4-6, 2006</btitle><stitle>LPE</stitle><date>2006-10-04</date><risdate>2006</risdate><spage>89</spage><epage>94</epage><pages>89-94</pages><isbn>9781595934628</isbn><isbn>1595934626</isbn><abstract>This paper presents a novel backlight driving technique for liquid crystal displays. By scaling the intensity, frequency, and duty cycle of the backlight, this technique not only increases the perceived brightness but also prolongs the service time of rechargeable batteries. The increased brightness comes from a perceptual effect of temporal vision - a brief flash appears brighter than a steady light of the same intensity, called Brücke brightness enhancement effect. The prolonged service time comes from the relaxation phenomenon - a lithium-ion battery lasts longer by pulsed discharge. Combining these two effects, a great amount of service time can be obtained at the cost of flickering. We performed visual experiments to parameterize the Brücke effect and derived an optimization algorithm accordingly. To demonstrate the potential energy savings of this technique, we profiled the power consumption of an Apple iPod and fabricated an LED driving module. Based on experimental data, 75% of energy consumption can be saved and the service time can be extended to 300%.</abstract><cop>New York, NY, USA</cop><pub>ACM</pub><doi>10.1145/1165573.1165595</doi><tpages>6</tpages></addata></record> |
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| identifier | ISBN: 9781595934628 |
| ispartof | ISLPED '06 : proceedings of the 2006 International Symposium on Low Power Electronics and Design, Tegernsee, Germany, October 4-6, 2006, 2006, p.89-94 |
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| language | eng |
| recordid | cdi_acm_books_10_1145_1165573_1165595 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Algorithms Apertures backlight management Brightness Computing methodologies -- Artificial intelligence -- Computer vision Computing methodologies -- Computer graphics -- Image manipulation Design Energy consumption Filters Human Factors Liquid crystal displays Liquid crystals Measurement Optical polarization Photonics Plasma displays Power minimization temporal vision TFT-LCD Thin film transistors |
| title | Temporal vision-guided energy minimization for portable displays |
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