JP7338636B2 - 表示装置 - Google Patents

表示装置 Download PDF

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Publication number
JP7338636B2
JP7338636B2 JP2020557725A JP2020557725A JP7338636B2 JP 7338636 B2 JP7338636 B2 JP 7338636B2 JP 2020557725 A JP2020557725 A JP 2020557725A JP 2020557725 A JP2020557725 A JP 2020557725A JP 7338636 B2 JP7338636 B2 JP 7338636B2
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JP
Japan
Prior art keywords
light source
light
current
unit
current supply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2020557725A
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English (en)
Japanese (ja)
Other versions
JPWO2020111037A1 (ja
Inventor
清 土田
泰弘 山川
慎也 白木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Seiki Co Ltd
Original Assignee
Nippon Seiki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Seiki Co Ltd filed Critical Nippon Seiki Co Ltd
Publication of JPWO2020111037A1 publication Critical patent/JPWO2020111037A1/ja
Application granted granted Critical
Publication of JP7338636B2 publication Critical patent/JP7338636B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/345—Current stabilisation; Maintaining constant current
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/22—Controlling the colour of the light using optical feedback
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/28—Controlling the colour of the light using temperature feedback
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0112—Head-up displays characterised by optical features comprising device for genereting colour display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0235—Field-sequential colour display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/025—Reduction of instantaneous peaks of current
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2380/00—Specific applications
    • G09G2380/10—Automotive applications

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Instrument Panels (AREA)
JP2020557725A 2018-11-29 2019-11-26 表示装置 Active JP7338636B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2018224079 2018-11-29
JP2018224079 2018-11-29
PCT/JP2019/046084 WO2020111037A1 (ja) 2018-11-29 2019-11-26 表示装置

Publications (2)

Publication Number Publication Date
JPWO2020111037A1 JPWO2020111037A1 (ja) 2021-11-04
JP7338636B2 true JP7338636B2 (ja) 2023-09-05

Family

ID=70853026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2020557725A Active JP7338636B2 (ja) 2018-11-29 2019-11-26 表示装置

Country Status (4)

Country Link
JP (1) JP7338636B2 (zh)
CN (1) CN113228826B (zh)
DE (1) DE112019005988T5 (zh)
WO (1) WO2020111037A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011155747A (ja) 2010-01-26 2011-08-11 Panasonic Electric Works Co Ltd 電源装置及び照明器具
WO2015087598A1 (ja) 2013-12-09 2015-06-18 シャープ株式会社 画像表示装置およびその駆動方法
JP2016510496A (ja) 2013-02-14 2016-04-07 ジェイアンドシー テクノロジー カンパニー リミテッド 発光ダイオードの点滅周波数を変換する電源回路
JP2017059500A (ja) 2015-09-18 2017-03-23 東芝ライテック株式会社 照明器具
US20170339765A1 (en) 2014-01-06 2017-11-23 Lunera Lighting, Inc. Lighting system built-in intelligence
JP2018032504A (ja) 2016-08-24 2018-03-01 岩崎電気株式会社 Ｌｅｄパルス点灯回路及びｌｅｄ照明装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001228687A (ja) * 2000-02-16 2001-08-24 Ricoh Co Ltd 画像形成装置
JP3947895B2 (ja) * 2000-02-24 2007-07-25 株式会社日立製作所 照明装置用点灯装置
JP4085555B2 (ja) * 2000-05-24 2008-05-14 三菱電機株式会社 放電灯点灯装置
JP2005265937A (ja) * 2004-03-16 2005-09-29 Fuji Electric Holdings Co Ltd 画像表示装置
JP2007166103A (ja) * 2005-12-12 2007-06-28 Advantest Corp 定電流パルス発生回路及び試験装置
KR101189102B1 (ko) * 2010-12-28 2012-10-10 주식회사 티엘아이 변조 지수를 개선하는 엘이디 조명 장치
JP6102252B2 (ja) * 2012-12-27 2017-03-29 日本精機株式会社 表示装置
JP6379490B2 (ja) 2014-01-10 2018-08-29 日本精機株式会社 光源駆動装置及び表示装置
JP2016032318A (ja) * 2014-07-28 2016-03-07 ローム株式会社 スイッチング電源装置
JP2017146401A (ja) * 2016-02-16 2017-08-24 日本精機株式会社 表示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011155747A (ja) 2010-01-26 2011-08-11 Panasonic Electric Works Co Ltd 電源装置及び照明器具
JP2016510496A (ja) 2013-02-14 2016-04-07 ジェイアンドシー テクノロジー カンパニー リミテッド 発光ダイオードの点滅周波数を変換する電源回路
WO2015087598A1 (ja) 2013-12-09 2015-06-18 シャープ株式会社 画像表示装置およびその駆動方法
US20170339765A1 (en) 2014-01-06 2017-11-23 Lunera Lighting, Inc. Lighting system built-in intelligence
JP2017059500A (ja) 2015-09-18 2017-03-23 東芝ライテック株式会社 照明器具
JP2018032504A (ja) 2016-08-24 2018-03-01 岩崎電気株式会社 Ｌｅｄパルス点灯回路及びｌｅｄ照明装置

Also Published As

Publication number Publication date
WO2020111037A1 (ja) 2020-06-04
CN113228826B (zh) 2023-09-19
DE112019005988T5 (de) 2021-10-07
CN113228826A (zh) 2021-08-06
JPWO2020111037A1 (ja) 2021-11-04

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