[go: up one dir, main page]

EP1837844A4 - Semiconductor lamp - Google Patents

Semiconductor lamp

Info

Publication number
EP1837844A4
EP1837844A4 EP05700419A EP05700419A EP1837844A4 EP 1837844 A4 EP1837844 A4 EP 1837844A4 EP 05700419 A EP05700419 A EP 05700419A EP 05700419 A EP05700419 A EP 05700419A EP 1837844 A4 EP1837844 A4 EP 1837844A4
Authority
EP
European Patent Office
Prior art keywords
semiconductor lamp
lamp
semiconductor
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.)
Withdrawn
Application number
EP05700419A
Other languages
German (de)
French (fr)
Other versions
EP1837844A1 (en
Inventor
Waikei Huen
Yun Li
Lock Kee Rocky Poon
Zhengxiang Gao
Hongzhuan Ma
Wenying Zhang
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1837844A1 publication Critical patent/EP1837844A1/en
Publication of EP1837844A4 publication Critical patent/EP1837844A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • 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
    • G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
    • G09G3/06—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources
    • G09G3/12—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources using electroluminescent elements
    • G09G3/14—Semiconductor devices, e.g. diodes
    • 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
    • H05B45/32—Pulse-control circuits
    • H05B45/325—Pulse-width modulation [PWM]
    • 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
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0272—Details of drivers for data electrodes, the drivers communicating data to the pixels by means of a 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
    • 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
    • G09G2330/021—Power management, e.g. power saving
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2014—Display of intermediate tones by modulation of the duration of a single pulse during which the logic level remains constant

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Led Devices (AREA)
EP05700419A 2005-01-12 2005-01-12 Semiconductor lamp Withdrawn EP1837844A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2005/000045 WO2006074573A1 (en) 2005-01-12 2005-01-12 Semiconductor lamp

Publications (2)

Publication Number Publication Date
EP1837844A1 EP1837844A1 (en) 2007-09-26
EP1837844A4 true EP1837844A4 (en) 2011-06-08

Family

ID=36677336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05700419A Withdrawn EP1837844A4 (en) 2005-01-12 2005-01-12 Semiconductor lamp

Country Status (2)

Country Link
EP (1) EP1837844A4 (en)
WO (1) WO2006074573A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103687157A (en) * 2012-09-21 2014-03-26 黄焕珠 Dynamic LED illuminating lamp
CN106251806B (en) * 2016-09-29 2019-04-02 北京集创北方科技股份有限公司 LED display and its driving method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2631102A1 (en) * 1988-05-09 1989-11-10 Cit Alcatel LIGHT WITH LIGHT EMITTING DIODES
US5008595A (en) * 1985-12-18 1991-04-16 Laser Link, Inc. Ornamental light display apparatus
US20020047646A1 (en) * 1997-08-26 2002-04-25 Ihor Lys Lighting entertainment system
WO2003032689A1 (en) * 2001-10-05 2003-04-17 Koninklijke Philips Electronics N.V. Pwm control of led based arrays

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3367036B2 (en) * 1996-05-31 2003-01-14 京セラミタ株式会社 Process unit
JPH10193683A (en) * 1997-01-16 1998-07-28 Fuji Xerox Co Ltd Image forming system
CN2425428Y (en) * 2000-04-30 2001-03-28 苏州半导体总厂 LED light-emitting device with built-in constant-current source
CN2452246Y (en) * 2000-10-20 2001-10-03 林文献 LED ultragrace voltage driver
JP2004235498A (en) * 2003-01-31 2004-08-19 Anden Light emitting diode controller

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5008595A (en) * 1985-12-18 1991-04-16 Laser Link, Inc. Ornamental light display apparatus
FR2631102A1 (en) * 1988-05-09 1989-11-10 Cit Alcatel LIGHT WITH LIGHT EMITTING DIODES
US20020047646A1 (en) * 1997-08-26 2002-04-25 Ihor Lys Lighting entertainment system
WO2003032689A1 (en) * 2001-10-05 2003-04-17 Koninklijke Philips Electronics N.V. Pwm control of led based arrays

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006074573A1 *

Also Published As

Publication number Publication date
WO2006074573A1 (en) 2006-07-20
EP1837844A1 (en) 2007-09-26

Similar Documents

Publication Publication Date Title
EP1978301A4 (en) Lighting device
GB2439672B (en) Lamp assembly
ZA200710189B (en) Lamp arrangement
GB0512256D0 (en) Lighting device
GB2438569B (en) Lamp assembly
EP1946002A4 (en) Lighting device
EP1837844A4 (en) Semiconductor lamp
GB2438867B (en) Luminaire
GB0917861D0 (en) Lamp
GB0523732D0 (en) Lamp
PL117719U1 (en) Lamp
GB0518751D0 (en) Lamp
GB0519176D0 (en) Lamp surround
PL373942A3 (en) Lighting fitting
PL372550A1 (en) Lighting fitting
AU307114S (en) Lamps
AU307113S (en) Lamps
AU307112S (en) Lamps
AU307111S (en) Lamps
AU307115S (en) Lamps
GB0520927D0 (en) Lamp
AU308456S (en) Lamp
AU308455S (en) Lamp
AU306808S (en) Lamp
GB0520926D0 (en) Lamp

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20070706

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20110510

RIC1 Information provided on ipc code assigned before grant

Ipc: H05B 33/08 20060101ALI20110503BHEP

Ipc: G09G 3/32 20060101ALI20110503BHEP

Ipc: G09G 3/14 20060101AFI20060801BHEP

17Q First examination report despatched

Effective date: 20120427

17Q First examination report despatched

Effective date: 20120511

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20160923