CN2580478Y - 液晶显示荧幕背光结构 - Google Patents

液晶显示荧幕背光结构 Download PDF

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CN2580478Y
CN2580478Y CN02289542U CN02289542U CN2580478Y CN 2580478 Y CN2580478 Y CN 2580478Y CN 02289542 U CN02289542 U CN 02289542U CN 02289542 U CN02289542 U CN 02289542U CN 2580478 Y CN2580478 Y CN 2580478Y
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lcd screen
liquid crystal
crystal display
display screen
backing structure
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许宗成
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Orient Huanyu Technology (Shenzhen) Co.,Ltd.
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Abstract

一种液晶显示荧幕背光结构，其改良部分在于液晶显示荧幕背部有一层半透光薄膜，用以造成光谱的混乱，产生光的均匀度，使用的光源灯管为多弯折且平行状的单一灯管，用以增进其亮度。

Description

液晶显示荧幕背光结构
技术领域
本实用新型涉及液晶显示荧幕，尤指一种液晶显示荧慕背部具有一层半透光薄膜，使背光产生乱射现象，以达到增进显示光谱均匀度的液晶显示荧幕背光结构。
背景技术
以往习用液晶显示荧幕的背光结构，是使两支或四支单独的光源灯管，该等光源灯管的控制，如专利公报公告第454878号所披露，是由PWM控制器、半桥转换器、谐振电路及回授电路所组成。其中，PWM控制器提供脉宽度调度讯号，控制灯管输出电流。半桥转换器为两功率电晶体相互串联，其中点位置为输出端，受控于PWM控制器的输出讯号，可作相应的交替或启闭动作。谐振电路为产生正弦波电压，提供灯管能量。以及回授电路，当负载改变时，回授电阻两端产生的电压讯号经回授电路，适时改变半桥转换器功率元件的导通时间，完成灯管电流调整的功能。但其多支灯管各单独设置，造成光谱均匀度与亮度并非十分理想。
又，目前一般所使用的液晶显示荧幕，是以薄膜利用光点照射加以集光，其材质价格极高，对产品市场的普遍化影响极大。
实用新型内容
本实用新型的主要目的，在于针对前述困难，提供一种液晶显示荧幕背光结构，是在液晶显示荧幕背部喷附或印设一层半透光薄膜，使背光产生乱射现象，以提高光谱的均匀度。
本实用新型的再一目的，在于提供一种液晶显示荧幕背光结构，将习用的多支灯管，采用单一的弯曲灯管代替，以达到增加亮度的效果。
本实用新型的技术方案：一种液晶显示荧幕背光结构，包括液晶显示荧幕，其特征在于：在液晶显示荧幕背部涂附有一层半透光薄膜，而背光所使用的光源灯管为多弯折且平行状的单一灯管。其中：
所述半透光薄膜，是以印刷或喷涂方式涂附于其上。
所述印刷或喷涂方式可为：喷漆、喷胶、喷纤维或喷树脂。
本实用新型由于其背部涂附有一层半透光薄膜及采用多弯折且平行状的单一灯管作为光源，故可提高其光谱的均匀度和背部的亮度。
附图说明
图1、为本实用新型立体图。
图2、为本实用新型灯管的立体图。
具体实施方式
参见图1、2，一种液晶显示荧幕背光结构，其液晶显示器1的液晶显示荧幕2背部具有一层半透光薄膜，该薄膜由印刷或喷涂方式涂附于其上，如喷漆、喷胶、喷纤维、或喷树脂，以造成光谱的混乱，以提高光谱的均匀度。
参见图2，本实用新型背光所使用的光源灯管3，是采用多弯折且平行状的单一灯管3、代替习用多支灯管，以增进其亮度。

Claims (3)

1.一种液晶显示荧幕背光结构，包括液晶显示荧幕，其特征在于：在液晶显示荧幕背部涂附有一层半透光薄膜，而背光所使用的光源灯管为多弯折且平行状的单一灯管。
2.根据权利要求1所述的液晶显示荧幕背光结构，其特征在于：所述半透光薄膜，是以印刷或喷涂方式涂附于其上。
3、根据权利要求2所述的液晶显示荧幕背光结构，其特征在于：所述印刷或喷涂方式可为：喷漆、喷胶、喷纤维或喷树脂。
CN02289542U 2002-11-21 2002-11-21 液晶显示荧幕背光结构 Expired - Fee Related CN2580478Y (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100395623C (zh) * 2005-06-10 2008-06-18 清华大学 背光模组
CN100432780C (zh) * 2004-04-23 2008-11-12 松下电器产业株式会社 包括弯曲荧光灯的背光单元以及包括背光单元的液晶显示装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100432780C (zh) * 2004-04-23 2008-11-12 松下电器产业株式会社 包括弯曲荧光灯的背光单元以及包括背光单元的液晶显示装置
CN100395623C (zh) * 2005-06-10 2008-06-18 清华大学 背光模组

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