发明名称 |
Projection display device having a light combining unit |
摘要 |
A projection display device (100) capable of providing a virtual keyboard function to the user, using a light source of a pico projector, is discussed. According to an embodiment, the projection display device includes a light source unit (110) configured to emit lights; a light combining unit (120) configured to generate a leakage light from the lights emitted by the light source (110) unit and to selectively combine the lights from the light source unit (110); an image projection unit (130) configured to project an image using the combined light from the light combining unit (120); and a virtual input unit (140) configured to project an input unit image (150) using the leakage light from the light combining unit (120). |
申请公布号 |
US8633892(B2) |
申请公布日期 |
2014.01.21 |
申请号 |
US20090745128 |
申请日期 |
2009.02.13 |
申请人 |
KANG HO JOONG;LEE SEUNG GYU;JEONG SANG SIK;KWEON OH JIN;LG ELECTRONICS INC. |
发明人 |
KANG HO JOONG;LEE SEUNG GYU;JEONG SANG SIK;KWEON OH JIN |
分类号 |
G06F3/033;G03B21/00;G06F3/02 |
主分类号 |
G06F3/033 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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