JP4754846B2 - 液晶表示装置 - Google Patents
液晶表示装置 Download PDFInfo
- Publication number
- JP4754846B2 JP4754846B2 JP2005052577A JP2005052577A JP4754846B2 JP 4754846 B2 JP4754846 B2 JP 4754846B2 JP 2005052577 A JP2005052577 A JP 2005052577A JP 2005052577 A JP2005052577 A JP 2005052577A JP 4754846 B2 JP4754846 B2 JP 4754846B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- light
- light source
- crystal display
- point light
- 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
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Images
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- Liquid Crystal (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Description
101 バックライトユニット
102 液晶パネル
103 ゲートドライバ
104 ソースドライバ
105 ホルダ
106 拡散シート
107 プリズムシート
108 導光板
109 反射シート
110 LED光源
110a 高光度LED
110b 低光度LED
111 フレーム
112 切り欠き部
113 LED電源制御回路
114 センサ
115 判定部
116a 高光度LED用電源
116b 低高度LED用電源
Claims (5)
- 液晶パネルと、前記液晶パネルに光を照射するライトユニットを備える液晶表示装置であって、
前記ライトユニットは、
側端面から入射した光を面全体に導いて前記液晶パネルに照射する導光板と、
前記導光板の側端面に対向して配置された複数の高光度点光源と、
前記高光度点光源の間に配置された低光度点光源とを備え、
前記低光度点光源がオンしている状態で前記高光度点光源をオフすることができるよう、前記高光度点光源のオン/オフを制御することができるものであり、
前記低光度点光源が隣接する前記高光度点光源の間に複数配置されている液晶表示装置。 - 前記高光度点光源がオンしている状態で前記低光度点光源をオフすることができるよう、前記低光度点光源のオン/オフを制御することができる請求項1に記載の液晶表示装置。
- 前記高光度点光源及び前記低光度点光源は、前記導光板の側端面の長手方向に沿って一列に配置されている請求項1又は2に記載の液晶表示装置。
- 前記高光度点光源及び前記低光度点光源のうち同じ光度の点光源がそれぞれ前記導光板の側端面の長手方向の中心線に対して対称に配置される請求項1〜3のいずれか1項に記載の液晶表示装置。
- 前記高光度点光源及び前記低光度点光源は、周囲の明るさに応じてオン/オフが切り替わる請求項1〜4のいずれか1項に記載の液晶表示装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005052577A JP4754846B2 (ja) | 2005-02-28 | 2005-02-28 | 液晶表示装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005052577A JP4754846B2 (ja) | 2005-02-28 | 2005-02-28 | 液晶表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006235436A JP2006235436A (ja) | 2006-09-07 |
JP4754846B2 true JP4754846B2 (ja) | 2011-08-24 |
Family
ID=37043116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005052577A Expired - Fee Related JP4754846B2 (ja) | 2005-02-28 | 2005-02-28 | 液晶表示装置 |
Country Status (1)
Country | Link |
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JP (1) | JP4754846B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011013406A1 (ja) * | 2009-07-30 | 2011-02-03 | シャープ株式会社 | エッジライト式照明装置、液晶表示装置及びテレビ受信装置 |
US8830422B2 (en) | 2010-01-26 | 2014-09-09 | Sharp Kabushiki Kaisha | Edge-light illuminating device, and liquid crystal display device |
WO2013084880A1 (ja) * | 2011-12-05 | 2013-06-13 | シャープ株式会社 | 面光源装置、調光装置およびそれを用いた表示装置、照明装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0660830U (ja) * | 1993-01-29 | 1994-08-23 | 株式会社小糸製作所 | 液晶表示装置 |
JP2004303578A (ja) * | 2003-03-31 | 2004-10-28 | Toyoda Gosei Co Ltd | 面状光源装置 |
JP2005026077A (ja) * | 2003-07-02 | 2005-01-27 | Fuji Photo Film Co Ltd | 液晶パネルのバックライト装置 |
-
2005
- 2005-02-28 JP JP2005052577A patent/JP4754846B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0660830U (ja) * | 1993-01-29 | 1994-08-23 | 株式会社小糸製作所 | 液晶表示装置 |
JP2004303578A (ja) * | 2003-03-31 | 2004-10-28 | Toyoda Gosei Co Ltd | 面状光源装置 |
JP2005026077A (ja) * | 2003-07-02 | 2005-01-27 | Fuji Photo Film Co Ltd | 液晶パネルのバックライト装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2006235436A (ja) | 2006-09-07 |
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