发明授权
- 专利标题： Direct-illumination backlight apparatus having transparent plate acting as light guide plate
- 专利标题（中）： 具有用作导光板的透明板的直接照明背光装置
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申请号： US11136529申请日： 2005-05-25
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公开(公告)号： US07273291B2公开(公告)日： 2007-09-25
- 发明人: Hyung Suk Kim , Jung Kyu Park , Ho Sik Ahn , Young June Jeong , Young Sam Park , Hun Joo Hahm , Bum Jin Kim
- 申请人： Hyung Suk Kim , Jung Kyu Park , Ho Sik Ahn , Young June Jeong , Young Sam Park , Hun Joo Hahm , Bum Jin Kim
- 申请人地址： KR Kyungki-Do
- 专利权人： Samsung Electro-Mechanics Co., Ltd.
- 当前专利权人： Samsung Electro-Mechanics Co., Ltd.
- 当前专利权人地址： KR Kyungki-Do
- 代理机构： Lowe Hauptman Ham & Berner
- 优先权： KR10-2005-0013659 20050218
- 主分类号： G01D11/28
- IPC分类号： G01D11/28
摘要：
A direct-illumination backlight apparatus using LEDs includes a flat reflective plate, an LED light source, a transparent plate, a scattering pattern, and a light guide. The light guide serves to introduce a partial light from an LED light source at such an angle that the partial light is trapped inside the transparent plate, and the scattering pattern serves to scatter the trapped light beam at a position directly above the LED light source so that the scattered light beam escapes out of the transparent plate toward an LCD panel.