TW200632250A - Surface light source device, display device having the same, and method of controlling the display device - Google Patents

Surface light source device, display device having the same, and method of controlling the display device

Info

Publication number
TW200632250A
TW200632250A TW094140459A TW94140459A TW200632250A TW 200632250 A TW200632250 A TW 200632250A TW 094140459 A TW094140459 A TW 094140459A TW 94140459 A TW94140459 A TW 94140459A TW 200632250 A TW200632250 A TW 200632250A
Authority
TW
Taiwan
Prior art keywords
light source
surface light
display device
controlling
same
Prior art date
Application number
TW094140459A
Other languages
Chinese (zh)
Inventor
Dae-Ho Choo
Dae-Kyu Choi
Original Assignee
Samsung Electronics Co Ltd
New Power Plasma 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 Samsung Electronics Co Ltd, New Power Plasma Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of TW200632250A publication Critical patent/TW200632250A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133604—Direct backlight with lamps
    • 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
    • G09G3/3406—Control of illumination source
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133612—Electrical details
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/141—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light conveying information used for selecting or modulating the light emitting or modulating element
    • G09G2360/142—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light conveying information used for selecting or modulating the light emitting or modulating element the light being detected by light detection means within each pixel
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Liquid Crystal (AREA)

Abstract

A surface light source includes a discharge tube, a power source, and a surface light source control part. The discharge tube includes a plurality of lighting areas. Each lighting area has a discharge electrode part. The power source applies electric power to the discharge electrode parts. The surface light source control part separately controls brightness of each lighting area by separately controlling electric power levels applied to the discharge electrode part of each lighting area, respectively. Therefore, relatively high contrasts and relatively low power consumption are obtained.
TW094140459A 2004-11-17 2005-11-17 Surface light source device, display device having the same, and method of controlling the display device TW200632250A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20040094280 2004-11-17
KR1020050074857A KR20060055305A (en) 2004-11-17 2005-08-16 Surface light source, display device having the same, and control method thereof

Publications (1)

Publication Number Publication Date
TW200632250A true TW200632250A (en) 2006-09-16

Family

ID=36766103

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094140459A TW200632250A (en) 2004-11-17 2005-11-17 Surface light source device, display device having the same, and method of controlling the display device

Country Status (3)

Country Link
KR (1) KR20060055305A (en)
CN (1) CN1776503A (en)
TW (1) TW200632250A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5615493B2 (en) * 2005-06-01 2014-10-29 コーニンクレッカ フィリップス エヌ ヴェ Dual display device
KR100798111B1 (en) * 2006-11-21 2008-01-28 주식회사 우영 Apparatus of controlling backlight and apparatus of driving backlight comprising the same
KR100878126B1 (en) * 2007-06-20 2009-01-14 주식회사 엘 앤 에프 Illumination and color temperature control apparatus for led back light unit in formed of side-light
US9064459B2 (en) 2007-06-29 2015-06-23 Samsung Electronics Co., Ltd. Display apparatus and brightness adjusting method thereof
KR101511127B1 (en) * 2008-01-22 2015-04-10 삼성디스플레이 주식회사 Method of driving a light source, device for driving a light source and display device having the same
CN102216837B (en) 2008-11-14 2014-11-19 杜比实验室特许公司 Display and method for displaying image of display
KR101191532B1 (en) * 2009-12-22 2012-10-15 삼성전자주식회사 Data display method and apparatus

Also Published As

Publication number Publication date
CN1776503A (en) 2006-05-24
KR20060055305A (en) 2006-05-23

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