LIGHT-EMITTING DEVICE
PROBLEM TO BE SOLVED: To solve a problem where a transistor of high breakdown voltage is required and a power consumption is increased because the amplitude of a control signal supplied to a drive circuit of a light-emitting element is required to be equal to or greater than a power source voltage.S...
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| creator | YAMASHITA TAKANORI IZEKI MASAMI |
| description | PROBLEM TO BE SOLVED: To solve a problem where a transistor of high breakdown voltage is required and a power consumption is increased because the amplitude of a control signal supplied to a drive circuit of a light-emitting element is required to be equal to or greater than a power source voltage.SOLUTION: A light-emitting element comprises: a light-emitting element (EL); a drive circuit (10); a power source line (18) supplying a power source voltage; a voltage line (11) supplying a voltage of an absolute value smaller than the power source voltage; and control lines (13-16) supplying control signals. The drive circuit (10) includes: a drive transistor (M1); a capacitor (C1); a first switch (M4) connected between a gate and a drain; a second switch (M6) connected between the drain and the light-emitting element; a third switch (M5) connected between a source and the voltage line (11); and a fourth switch (M7) connected between the source and the power source line (18). The first to fourth switches are field effect transistors, and the amplitudes of the control signals supplied through the control lines (13-16) are smaller than an absolute value of the power source voltage.
【課題】 発光素子の駆動回路に供給される制御信号の振幅が電源電圧以上に必要であるため、トランジスタを高耐圧にしなければならず、消費電力も大きくなる。【解決手段】 発光素子（ＥＬ）、駆動回路（１０）、電源電圧を供給する電源線（１８）、電源電圧より絶対値の小さい電圧を供給する電圧線（１１）、制御信号を供給する制御線（１３−１６）を有し、駆動回路（１０）は、駆動トランジスタ（Ｍ１）、容量（Ｃ１）、ゲートとドレインの間に接続された第１スイッチ（Ｍ４）、ドレインと発光素子の間に接続された第２スイッチ（Ｍ６）、ソースと電圧線（１１）の間に接続された第３スイッチ（Ｍ５）、ソースと電源線（１８）の間に接続された第４スイッチ（Ｍ７）を含み、第１ないし第４スイッチは電界効果トランジスタであり、制御線（１３−１６）を介して供給される制御信号の振幅が電源電圧の絶対値より小さい発光装置。【選択図】 図１ |
| format | Patent |
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【課題】 発光素子の駆動回路に供給される制御信号の振幅が電源電圧以上に必要であるため、トランジスタを高耐圧にしなければならず、消費電力も大きくなる。【解決手段】 発光素子（ＥＬ）、駆動回路（１０）、電源電圧を供給する電源線（１８）、電源電圧より絶対値の小さい電圧を供給する電圧線（１１）、制御信号を供給する制御線（１３−１６）を有し、駆動回路（１０）は、駆動トランジスタ（Ｍ１）、容量（Ｃ１）、ゲートとドレインの間に接続された第１スイッチ（Ｍ４）、ドレインと発光素子の間に接続された第２スイッチ（Ｍ６）、ソースと電圧線（１１）の間に接続された第３スイッチ（Ｍ５）、ソースと電源線（１８）の間に接続された第４スイッチ（Ｍ７）を含み、第１ないし第４スイッチは電界効果トランジスタであり、制御線（１３−１６）を介して供給される制御信号の振幅が電源電圧の絶対値より小さい発光装置。【選択図】 図１</description><language>eng ; jpn</language><subject>ADVERTISING ; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION ; BASIC ELECTRIC ELEMENTS ; CRYPTOGRAPHY ; DISPLAY ; DISPLAYING ; EDUCATION ; ELECTRIC HEATING ; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; LABELS OR NAME-PLATES ; PHYSICS ; SEALS ; SEMICONDUCTOR DEVICES ; SIGNS</subject><creationdate>2014</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=20141208&DB=EPODOC&CC=JP&NR=2014228744A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20141208&DB=EPODOC&CC=JP&NR=2014228744A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YAMASHITA TAKANORI</creatorcontrib><creatorcontrib>IZEKI MASAMI</creatorcontrib><title>LIGHT-EMITTING DEVICE</title><description>PROBLEM TO BE SOLVED: To solve a problem where a transistor of high breakdown voltage is required and a power consumption is increased because the amplitude of a control signal supplied to a drive circuit of a light-emitting element is required to be equal to or greater than a power source voltage.SOLUTION: A light-emitting element comprises: a light-emitting element (EL); a drive circuit (10); a power source line (18) supplying a power source voltage; a voltage line (11) supplying a voltage of an absolute value smaller than the power source voltage; and control lines (13-16) supplying control signals. The drive circuit (10) includes: a drive transistor (M1); a capacitor (C1); a first switch (M4) connected between a gate and a drain; a second switch (M6) connected between the drain and the light-emitting element; a third switch (M5) connected between a source and the voltage line (11); and a fourth switch (M7) connected between the source and the power source line (18). The first to fourth switches are field effect transistors, and the amplitudes of the control signals supplied through the control lines (13-16) are smaller than an absolute value of the power source voltage.
【課題】 発光素子の駆動回路に供給される制御信号の振幅が電源電圧以上に必要であるため、トランジスタを高耐圧にしなければならず、消費電力も大きくなる。【解決手段】 発光素子（ＥＬ）、駆動回路（１０）、電源電圧を供給する電源線（１８）、電源電圧より絶対値の小さい電圧を供給する電圧線（１１）、制御信号を供給する制御線（１３−１６）を有し、駆動回路（１０）は、駆動トランジスタ（Ｍ１）、容量（Ｃ１）、ゲートとドレインの間に接続された第１スイッチ（Ｍ４）、ドレインと発光素子の間に接続された第２スイッチ（Ｍ６）、ソースと電圧線（１１）の間に接続された第３スイッチ（Ｍ５）、ソースと電源線（１８）の間に接続された第４スイッチ（Ｍ７）を含み、第１ないし第４スイッチは電界効果トランジスタであり、制御線（１３−１６）を介して供給される制御信号の振幅が電源電圧の絶対値より小さい発光装置。【選択図】 図１</description><subject>ADVERTISING</subject><subject>ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CRYPTOGRAPHY</subject><subject>DISPLAY</subject><subject>DISPLAYING</subject><subject>EDUCATION</subject><subject>ELECTRIC HEATING</subject><subject>ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>LABELS OR NAME-PLATES</subject><subject>PHYSICS</subject><subject>SEALS</subject><subject>SEMICONDUCTOR DEVICES</subject><subject>SIGNS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2014</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBD18XT3CNF19fUMCfH0c1dwcQ3zdHblYWBNS8wpTuWF0twMSm6uIc4euqkF-fGpxQWJyal5qSXxXgFGBoYmRkYW5iYmjsZEKQIA0CofSg</recordid><startdate>20141208</startdate><enddate>20141208</enddate><creator>YAMASHITA TAKANORI</creator><creator>IZEKI MASAMI</creator><scope>EVB</scope></search><sort><creationdate>20141208</creationdate><title>LIGHT-EMITTING DEVICE</title><author>YAMASHITA TAKANORI ; IZEKI MASAMI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2014228744A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2014</creationdate><topic>ADVERTISING</topic><topic>ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CRYPTOGRAPHY</topic><topic>DISPLAY</topic><topic>DISPLAYING</topic><topic>EDUCATION</topic><topic>ELECTRIC HEATING</topic><topic>ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>LABELS OR NAME-PLATES</topic><topic>PHYSICS</topic><topic>SEALS</topic><topic>SEMICONDUCTOR DEVICES</topic><topic>SIGNS</topic><toplevel>online_resources</toplevel><creatorcontrib>YAMASHITA TAKANORI</creatorcontrib><creatorcontrib>IZEKI MASAMI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>YAMASHITA TAKANORI</au><au>IZEKI MASAMI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>LIGHT-EMITTING DEVICE</title><date>2014-12-08</date><risdate>2014</risdate><abstract>PROBLEM TO BE SOLVED: To solve a problem where a transistor of high breakdown voltage is required and a power consumption is increased because the amplitude of a control signal supplied to a drive circuit of a light-emitting element is required to be equal to or greater than a power source voltage.SOLUTION: A light-emitting element comprises: a light-emitting element (EL); a drive circuit (10); a power source line (18) supplying a power source voltage; a voltage line (11) supplying a voltage of an absolute value smaller than the power source voltage; and control lines (13-16) supplying control signals. The drive circuit (10) includes: a drive transistor (M1); a capacitor (C1); a first switch (M4) connected between a gate and a drain; a second switch (M6) connected between the drain and the light-emitting element; a third switch (M5) connected between a source and the voltage line (11); and a fourth switch (M7) connected between the source and the power source line (18). The first to fourth switches are field effect transistors, and the amplitudes of the control signals supplied through the control lines (13-16) are smaller than an absolute value of the power source voltage.
【課題】 発光素子の駆動回路に供給される制御信号の振幅が電源電圧以上に必要であるため、トランジスタを高耐圧にしなければならず、消費電力も大きくなる。【解決手段】 発光素子（ＥＬ）、駆動回路（１０）、電源電圧を供給する電源線（１８）、電源電圧より絶対値の小さい電圧を供給する電圧線（１１）、制御信号を供給する制御線（１３−１６）を有し、駆動回路（１０）は、駆動トランジスタ（Ｍ１）、容量（Ｃ１）、ゲートとドレインの間に接続された第１スイッチ（Ｍ４）、ドレインと発光素子の間に接続された第２スイッチ（Ｍ６）、ソースと電圧線（１１）の間に接続された第３スイッチ（Ｍ５）、ソースと電源線（１８）の間に接続された第４スイッチ（Ｍ７）を含み、第１ないし第４スイッチは電界効果トランジスタであり、制御線（１３−１６）を介して供給される制御信号の振幅が電源電圧の絶対値より小さい発光装置。【選択図】 図１</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 BASIC ELECTRIC ELEMENTS CRYPTOGRAPHY DISPLAY DISPLAYING EDUCATION ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY LABELS OR NAME-PLATES PHYSICS SEALS SEMICONDUCTOR DEVICES SIGNS |
| title | LIGHT-EMITTING DEVICE |
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