GB2355841B - Display device, portable electronic device and method of controlling display device - Google Patents

Display device, portable electronic device and method of controlling display device

Info

Publication number
GB2355841B
GB2355841B GB0101988A GB0101988A GB2355841B GB 2355841 B GB2355841 B GB 2355841B GB 0101988 A GB0101988 A GB 0101988A GB 0101988 A GB0101988 A GB 0101988A GB 2355841 B GB2355841 B GB 2355841B
Authority
GB
United Kingdom
Prior art keywords
display device
portable electronic
electronic device
controlling
controlling display
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.)
Expired - Fee Related
Application number
GB0101988A
Other versions
GB2355841A (en
GB0101988D0 (en
Inventor
Taisuke Nakamura
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.)
NEC Corp
Original Assignee
NEC Corp
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
Priority claimed from JP11012320A external-priority patent/JP2000214825A/en
Application filed by NEC Corp filed Critical NEC Corp
Publication of GB0101988D0 publication Critical patent/GB0101988D0/en
Publication of GB2355841A publication Critical patent/GB2355841A/en
Application granted granted Critical
Publication of GB2355841B publication Critical patent/GB2355841B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H05B45/24—Controlling the colour of the light using electrical feedback from LEDs or from LED modules
GB0101988A 1999-01-20 2000-01-20 Display device, portable electronic device and method of controlling display device Expired - Fee Related GB2355841B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11012320A JP2000214825A (en) 1999-01-20 1999-01-20 Backlight display device and method
GB0001316A GB2346004B (en) 1999-01-20 2000-01-20 Display device, portable electronic device and method of controlling display d evice

Publications (3)

Publication Number Publication Date
GB0101988D0 GB0101988D0 (en) 2001-03-14
GB2355841A GB2355841A (en) 2001-05-02
GB2355841B true GB2355841B (en) 2001-10-31

Family

ID=26243437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0101988A Expired - Fee Related GB2355841B (en) 1999-01-20 2000-01-20 Display device, portable electronic device and method of controlling display device

Country Status (1)

Country Link
GB (1) GB2355841B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2831382B1 (en) * 2001-10-19 2008-12-26 Valeo Vision ELECTROLUMINESCENT DIODE LIGHTING OR SIGNALING DEVICE
GB2417374A (en) * 2004-08-20 2006-02-22 Mood Concepts Ltd Lighting system power supply with at least two outputs
US20060273331A1 (en) * 2005-06-07 2006-12-07 Lim Kevin Len L Two-terminal LED device with tunable color

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4278917A (en) * 1978-10-09 1981-07-14 Futaba Denshi Kogyo K.K. Driving circuit for fluorescent display device
JPS62117481A (en) * 1985-11-15 1987-05-28 Sanyo Electric Co Ltd Brightness adjusting circuit
JPH04359292A (en) * 1991-06-06 1992-12-11 Matsushita Electric Ind Co Ltd Automatic adjusting device for screen brightness
JPH05127635A (en) * 1991-10-30 1993-05-25 Nec Corp Automatic adjusting unit for display brightness
JPH0619425A (en) * 1992-06-30 1994-01-28 Takiron Co Ltd Light emission diode display device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4278917A (en) * 1978-10-09 1981-07-14 Futaba Denshi Kogyo K.K. Driving circuit for fluorescent display device
JPS62117481A (en) * 1985-11-15 1987-05-28 Sanyo Electric Co Ltd Brightness adjusting circuit
JPH04359292A (en) * 1991-06-06 1992-12-11 Matsushita Electric Ind Co Ltd Automatic adjusting device for screen brightness
JPH05127635A (en) * 1991-10-30 1993-05-25 Nec Corp Automatic adjusting unit for display brightness
JPH0619425A (en) * 1992-06-30 1994-01-28 Takiron Co Ltd Light emission diode display device

Also Published As

Publication number Publication date
GB2355841A (en) 2001-05-02
GB0101988D0 (en) 2001-03-14

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20141023 AND 20141029

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20180120