JP2006059605A5 - - Google Patents

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Publication number
JP2006059605A5
JP2006059605A5 JP2004238790A JP2004238790A JP2006059605A5 JP 2006059605 A5 JP2006059605 A5 JP 2006059605A5 JP 2004238790 A JP2004238790 A JP 2004238790A JP 2004238790 A JP2004238790 A JP 2004238790A JP 2006059605 A5 JP2006059605 A5 JP 2006059605A5
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Prior art keywords
emitting element
light emitting
current
supplied
operation signal
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JP2004238790A
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JP4529585B2 (ja
JP2006059605A (ja
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Priority claimed from JP2004238790A external-priority patent/JP4529585B2/ja
Priority to JP2004238790A priority Critical patent/JP4529585B2/ja
Priority to TW094127761A priority patent/TWI269132B/zh
Priority to US11/204,351 priority patent/US7176640B2/en
Priority to KR1020050074854A priority patent/KR101146194B1/ko
Priority to CNA2005101199441A priority patent/CN1755447A/zh
Priority to EP05291747A priority patent/EP1628286A3/en
Publication of JP2006059605A publication Critical patent/JP2006059605A/ja
Publication of JP2006059605A5 publication Critical patent/JP2006059605A5/ja
Publication of JP4529585B2 publication Critical patent/JP4529585B2/ja
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Expired - Fee Related legal-status Critical Current
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Claims (5)

  1. 表示パネルユニットと、この表示パネルユニットの背面側に組み合わされて表示光を供給する赤色の発光素子、緑色の発光素子及び青色の発光素子ごとに複数個縦列接続された発光素子群からなるバックライトユニットと、このバックライトユニットを制御する制御装置とを備える表示装置であって、
    上記制御装置は、上記発光素子群に所定の駆動電流を供給する電流供給手段と、上記電流供給手段により供給された電流に応じて、上記発光素子群から発せられる光量を検出する発光量検出手段と、上記バックライトユニットの温度を検出する温度検出手段と、上記各色ごとの発光素子の基準光量値を出力する基準光量値出力手段と、上記発光量検出手段により検出された発光量と、上記温度検出手段により検出された温度と、上記基準光量値出力手段により出力される基準光量値に基づき、上記青色の発光素子に一定の駆動電流が供給されるように上記電流供給手段を制御し、上記青色の発光素子に供給される一定の駆動電流に基づき、上記赤色の発光素子及び上記緑色の発光素子に所定の駆動電流が供給されるように上記電流供給手段を制御する制御手段を備える
    ことを特徴とする表示装置。
  2. 赤色の発光素子、緑色の発光素子及び青色の発光素子ごとに複数個縦列接続された発光素子群からなるバックライトユニットを制御する制御装置において、
    上記発光素子群に所定の駆動電流を供給する電流供給手段と、
    上記電流供給手段により供給された電流に応じて、上記発光素子群から発せられる光量を検出する発光量検出手段と、
    上記バックライトユニットの温度を検出する温度検出手段と、
    上記各色ごとの発光素子の基準光量値を出力する基準光量値出力手段と、
    上記発光量検出手段により検出された発光量と、上記温度検出手段により検出された温度と、上記基準光量値出力手段により出力される基準光量値に基づき、上記青色の発光素子に一定の駆動電流が供給されるように上記電流供給手段を制御し、上記青色の発光素子に供給される一定の駆動電流に基づき、上記赤色の発光素子及び上記緑色の発光素子に所定の駆動電流が供給されるように上記電流供給手段を制御する制御手段を備えることを特徴とする制御装置。
  3. 所定の操作信号を生成する操作信号生成手段を備え、
    上記電流供給手段は、上記制御手段の制御にしたがって上記青色の発光素子に供給する一定の駆動電流値を、上記操作信号に応じて任意の電流値に可変し、上記可変した電流値に応じて上記赤色の発光素子及び上記緑色の発光素子に供給する駆動電流を可変することを特徴とする請求項2記載の制御装置。
  4. 上記操作信号生成手段は、上記バックライトの輝度を操作する操作信号を生成することを特徴とする請求項2記載の制御装置。
  5. 上記操作信号生成手段は、上記バックライトの色温度を操作する操作信号を生成することを特徴とする請求項2記載の制御装置。
JP2004238790A 2004-08-18 2004-08-18 表示装置及びその制御装置 Expired - Fee Related JP4529585B2 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2004238790A JP4529585B2 (ja) 2004-08-18 2004-08-18 表示装置及びその制御装置
TW094127761A TWI269132B (en) 2004-08-18 2005-08-15 Control device
US11/204,351 US7176640B2 (en) 2004-08-18 2005-08-16 Device for controlling light emission rates of a backlight
KR1020050074854A KR101146194B1 (ko) 2004-08-18 2005-08-16 제어장치
CNA2005101199441A CN1755447A (zh) 2004-08-18 2005-08-17 控制装置
EP05291747A EP1628286A3 (en) 2004-08-18 2005-08-18 Control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004238790A JP4529585B2 (ja) 2004-08-18 2004-08-18 表示装置及びその制御装置

Publications (3)

Publication Number Publication Date
JP2006059605A JP2006059605A (ja) 2006-03-02
JP2006059605A5 true JP2006059605A5 (ja) 2007-09-27
JP4529585B2 JP4529585B2 (ja) 2010-08-25

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JP2004238790A Expired - Fee Related JP4529585B2 (ja) 2004-08-18 2004-08-18 表示装置及びその制御装置

Country Status (6)

Country Link
US (1) US7176640B2 (ja)
EP (1) EP1628286A3 (ja)
JP (1) JP4529585B2 (ja)
KR (1) KR101146194B1 (ja)
CN (1) CN1755447A (ja)
TW (1) TWI269132B (ja)

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